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orientalis</title> <meta name="description" content="Search results for: Thunnus orientalis"> <meta name="keywords" content="Thunnus orientalis"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Thunnus orientalis"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 20</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Thunnus orientalis</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Phylogenetic Analysis of the Thunnus Tuna Fish Using Cytochrome C Oxidase Subunit I Gene Sequence</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yijun%20Lai">Yijun Lai</a>, <a href="https://publications.waset.org/abstracts/search?q=Saber%20Khederzadeh"> Saber Khederzadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Lingshaung%20Han"> Lingshaung Han</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Species in Thunnus are organized due to the similarity between them. The closeness between T. maccoyii, T. thynnus, T. Tonggol, T. atlanticus, T. albacares, T. obsesus, T. alalunga, and T. orientails are in different degrees. However, the genetic pattern of differentiation has not been presented based on individuals yet, to the author’s best knowledge. Hence, we aimed to analyze the difference in individuals level of tuna species to identify the factors that contribute to the maternal lineage variety using Cytochrome c oxidase subunit I (COXI) gene sequences. Our analyses provided evidence of sharing lineages in the Thunnus. A phylogenetic analysis revealed that these lineages are basal to the other sequences. We also showed a close connection between the T. tonggol, T. thynnus, and T. albacares populations. Also, the majority of the T. orientalis samples were clustered with the T. alalunga and, then, T. atlanticus populations. Phylogenetic trees and migration modeling revealed high proximity of T. thynnus sequences to a few T. orientalis and suggested possible gene flow with T. tonggol and T. albacares lineages, while all T. obsesus samples indicated unique clustering with each other. Our results support the presence of old maternal lineages in Thunnus, as a legacy of an ancient wave of colonization or migration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thunnus%20Tuna" title="Thunnus Tuna">Thunnus Tuna</a>, <a href="https://publications.waset.org/abstracts/search?q=phylogeny" title=" phylogeny"> phylogeny</a>, <a href="https://publications.waset.org/abstracts/search?q=maternal%20lineage" title=" maternal lineage"> maternal lineage</a>, <a href="https://publications.waset.org/abstracts/search?q=COXI%20gene" title=" COXI gene"> COXI gene</a> </p> <a href="https://publications.waset.org/abstracts/161742/phylogenetic-analysis-of-the-thunnus-tuna-fish-using-cytochrome-c-oxidase-subunit-i-gene-sequence" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161742.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">290</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Role of Climatic Conditions on Pacific Bluefin Tuna Thunnus orientalis Stock Structure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ashneel%20Ajay%20Singh">Ashneel Ajay Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazumi%20Sakuramoto"> Kazumi Sakuramoto</a>, <a href="https://publications.waset.org/abstracts/search?q=Naoki%20Suzuki"> Naoki Suzuki</a>, <a href="https://publications.waset.org/abstracts/search?q=Kalla%20Alok"> Kalla Alok</a>, <a href="https://publications.waset.org/abstracts/search?q=Nath%20Paras"> Nath Paras</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bluefin (Thunnus orientalis) tuna is one of the most economically valuable tuna species in the world. In recent years the stock has been observed to decline. It is suspected that the stock-recruitment relationship and population structure is influenced by environmental and climatic variables. This study was aimed at investigating the influence of environmental and climatic conditions on the trajectory of the different life stages of the North Pacific bluefin tuna. Exploratory analysis was performed for the North Pacific sea surface temperature (SST) and Pacific Decadal Oscillation (PDO) on the time series of the bluefin tuna cohorts (age-0, 1, 2,…,9, 10+). General Additive Modeling (GAM) was used to reconstruct the recruitment (R) trajectory. The spatial movement of the SST was also monitored from 1953 to 2012 in the distribution area of the bluefin tuna. Exploratory analysis showed significance influence of the North Pacific Sea Surface temperature (SST) and Pacific Decadal Oscillation (PDO) on the time series of the age-0 group. Other age group (1, 2,…,9, 10+) time series did not exhibit any significant correlations. PDO showed most significant relationship in the months of October to December. Although the stock-recruitment relationship is of biological significance, the recruits (age-0) showed poor correlation with the Spawning Stock Biomass (SSB). Indeed the most significant model incorporated the SSB, SST and PDO. The results show that the stock-recruitment relationship of the North Pacific bluefin tuna is multi-dimensional and cannot be adequately explained by the SSB alone. SST and PDO forcing of the population structure is of significant importance and needs to be accounted for when making harvesting plans for bluefin tuna in the North Pacific. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pacific%20bluefin%20tuna" title="pacific bluefin tuna">pacific bluefin tuna</a>, <a href="https://publications.waset.org/abstracts/search?q=Thunnus%20orientalis" title=" Thunnus orientalis"> Thunnus orientalis</a>, <a href="https://publications.waset.org/abstracts/search?q=cohorts" title=" cohorts"> cohorts</a>, <a href="https://publications.waset.org/abstracts/search?q=recruitment" title=" recruitment"> recruitment</a>, <a href="https://publications.waset.org/abstracts/search?q=spawning%20stock%20biomass" title=" spawning stock biomass"> spawning stock biomass</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20surface%20temperature" title=" sea surface temperature"> sea surface temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=pacific%20decadal%20oscillation" title=" pacific decadal oscillation"> pacific decadal oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=general%20additive%20model" title=" general additive model"> general additive model</a> </p> <a href="https://publications.waset.org/abstracts/66864/role-of-climatic-conditions-on-pacific-bluefin-tuna-thunnus-orientalis-stock-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66864.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">236</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Pesticide Residue Determination on Cumin Plant (Nigella orientalis L.) with LC-MS/MS and GC-MS</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nilda%20Ersoy">Nilda Ersoy</a>, <a href="https://publications.waset.org/abstracts/search?q=Sevin%C3%A7%20%C5%9Eener"> Sevinç Şener</a>, <a href="https://publications.waset.org/abstracts/search?q=Ay%C5%9Fe%20Yal%C3%A7%C4%B1n%20Elidemir"> Ayşe Yalçın Elidemir</a>, <a href="https://publications.waset.org/abstracts/search?q=Ebru%20Evcil"> Ebru Evcil</a>, <a href="https://publications.waset.org/abstracts/search?q=Erg%C3%BCn%20D%C3%B6%C4%9Fen"> Ergün Döğen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, pesticide residues were investigated in black cumin (Nigella orientalis L.) seeds grown in Turkey. GC-MS and LC-MS/MS analytical instruments are used in high precision when determining residue limits. A total of 100 pesticide active ingredients in LC-MS/MS devices have been performed in Nigella orientalis L. seeds samples. Also for the same aim, 103 pesticide active ingredients were analyzed in GC-MS. This study was conducted in 2012 and 2013. Sample residues were not found in detectable levels for two years. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pesticide" title="pesticide">pesticide</a>, <a href="https://publications.waset.org/abstracts/search?q=residue" title=" residue"> residue</a>, <a href="https://publications.waset.org/abstracts/search?q=black%20cumin" title=" black cumin"> black cumin</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigella%20orientalis%20L." title=" Nigella orientalis L."> Nigella orientalis L.</a> </p> <a href="https://publications.waset.org/abstracts/14955/pesticide-residue-determination-on-cumin-plant-nigella-orientalis-l-with-lc-msms-and-gc-ms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14955.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">392</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Pesticide Residue Determination on Cumin Plant (Nigella orientalis L.) Grown through Agricultural Practices with LC-MS/MS and GC-MS</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nilda%20Ersoy">Nilda Ersoy</a>, <a href="https://publications.waset.org/abstracts/search?q=Sevin%C3%A7%20%C5%9Eener"> Sevinç Şener</a>, <a href="https://publications.waset.org/abstracts/search?q=Ay%C5%9Fe%20Yal%C3%A7%C4%B1n%20Elidemir"> Ayşe Yalçın Elidemir</a>, <a href="https://publications.waset.org/abstracts/search?q=Ebru%20Evcil"> Ebru Evcil</a>, <a href="https://publications.waset.org/abstracts/search?q=Erg%C3%BCn%20D%C3%B6%C4%9Fen"> Ergün Döğen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, pesticide residues were investigated in black cumin (Nigella orientalis L.) seeds which grown in Turkey. GC-MS and LC-MS/MS analytical instruments are used in high precision, when determining residue limits. A total of 100 pesticide active ingredients in LC-MS/MS devices have been performed in Nigella orientalis L. seeds samples. Moreover, for same aim, 103 pesticide active ingredients were analyzed in GC-MS. This study conducted in 2012 and 2013. Samples residues were not found in detectable levels for two years. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pesticide" title="pesticide">pesticide</a>, <a href="https://publications.waset.org/abstracts/search?q=residue" title=" residue"> residue</a>, <a href="https://publications.waset.org/abstracts/search?q=black%20cumin" title=" black cumin"> black cumin</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigella%20orientalis%20L." title=" Nigella orientalis L."> Nigella orientalis L.</a> </p> <a href="https://publications.waset.org/abstracts/14753/pesticide-residue-determination-on-cumin-plant-nigella-orientalis-l-grown-through-agricultural-practices-with-lc-msms-and-gc-ms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14753.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Examining the Role of Tree Species in Absorption of Heavy Metals; Case Study: Abidar Forest Park</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jahede%20Tekeykhah">Jahede Tekeykhah</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Mohsen%20Hossini"> Seyed Mohsen Hossini</a>, <a href="https://publications.waset.org/abstracts/search?q=Gholamali%20Jalali"> Gholamali Jalali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Industrial and traffic activities cause large amounts of heavy metals enter into the atmosphere and the use of plant species can be effective in assessing and reducing air pollution by metals. This study aimed to investigate the adsorption level of heavy metals in leaves of Fraxinus rotundifolia, Robinia, Platanus orientalis, Platycladus orientalis and Pinus eldarica trees in Abidar forest park. For this purpose, samples leaves of the trees were prepared from the contaminated and control areas in each region in 3 stations with 3 replicates in mid-August and finally 90 samples were sent to the laboratory. Then, the concentrations of heavy metals were measured by graphite furnace. To do this, factorial experiment based on a completely randomized design with two factors of location on two levels (contaminated area and control area) and the factor of species on five levels (Fraxinus rotundifolia, Robinia, Platanus orientalis, Platycladus orientalis and Pinus eldarica) with three replications was used. The analysis of collected data was performed by SPSS software and Duncan's multiple range test was used to compare the means. The results showed that the accumulation of all metals in the leaves of most species in the infected area with a significant difference at 95% level was higher than the control area. In the contaminated area, with a significant difference at 5% level, the highest accumulations of metals were observed as the following: lead, cadmium, zinc and manganese in Platanus orientalis, nickel in Fraxinus rotundifolia and copper in Platycladus orientalis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=airborne" title="airborne">airborne</a>, <a href="https://publications.waset.org/abstracts/search?q=tree%20species" title=" tree species"> tree species</a>, <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title=" heavy metals"> heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=absorption" title=" absorption"> absorption</a>, <a href="https://publications.waset.org/abstracts/search?q=Abidar%20Forest%20Park" title=" Abidar Forest Park"> Abidar Forest Park</a> </p> <a href="https://publications.waset.org/abstracts/81735/examining-the-role-of-tree-species-in-absorption-of-heavy-metals-case-study-abidar-forest-park" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81735.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">311</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Arbuscular Mycorrhizal Symbiosis in Trema orientalis: Effect of a Naturally-Occurring Symbiosis Receptor Kinase Mutant Allele </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yuda%20Purwana%20Roswanjaya">Yuda Purwana Roswanjaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Wouter%20Kohlen"> Wouter Kohlen</a>, <a href="https://publications.waset.org/abstracts/search?q=Rene%20Geurts"> Rene Geurts</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Trema genus represents a group of fast-growing tropical tree species within the Cannabaceae. Interestingly, five species nested in this lineage -known as Parasponia- can establish rhizobium nitrogen-fixing root nodules, similar to those found in legumes. Parasponia and legumes use a conserved genetic network to control root nodule formation, among which are genes also essential for mycorrhizal symbiosis (the so-called common symbiotic pathway). However, Trema species lost several genes that function exclusively in nodulation, suggesting a loss-of the nodulation trait in Trema. Strikingly, in a Trema orientalis population found in Malaysian Borneo we identified a truncated SYMBIOSIS RECEPTOR KINASE (SYMRK) mutant allele lacking a large portion of the c-terminal kinase domain. In legumes this gene is essential for nodulation and mycorrhization. This raises the question whether Trema orientalis can still be mycorrhized. To answer this question, we established quantitative mycorrhization assay for Parasponia andersonii and Trema orientalis. Plants were grown in closed pots on half strength Hoagland medium containing 20 µM potassium phosphate in sterilized sand and inoculated with 125 spores of Rhizopagus irregularis (Agronutrion-DAOM197198). Mycorrhization efficiency was determined by analyzing the frequency of mycorrhiza (%F), the intensity of the mycorrhizal colonization (%M) and the arbuscule abundance (%A) in the root system. Trema orientalis RG33 can be mycorrhized, though with lower efficiency compared to Parasponia andersonii. From this we conclude that a functional SYMRK kinase domain is not essential for Trema orientalis mycorrhization. In ongoing experiments, we aim to investigate the role of SYMRK in Parasponia andersonii mycorrhization and nodulation. For this two Parasponia andersonii symrk CRISPR-Cas9 mutant alleles were created. One mimicking the TorSYMRKRG33 allele by deletion of exon 13-15, and a full Parasponia andersonii SYMRK knockout. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=endomycorrhization" title="endomycorrhization">endomycorrhization</a>, <a href="https://publications.waset.org/abstracts/search?q=Parasponia%20andersonii" title=" Parasponia andersonii"> Parasponia andersonii</a>, <a href="https://publications.waset.org/abstracts/search?q=symbiosis%20receptor%20kinase%20%28SYMRK%29" title=" symbiosis receptor kinase (SYMRK)"> symbiosis receptor kinase (SYMRK)</a>, <a href="https://publications.waset.org/abstracts/search?q=Trema%20orientalis" title=" Trema orientalis"> Trema orientalis</a> </p> <a href="https://publications.waset.org/abstracts/99174/arbuscular-mycorrhizal-symbiosis-in-trema-orientalis-effect-of-a-naturally-occurring-symbiosis-receptor-kinase-mutant-allele" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/99174.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">164</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">14</span> Comparative Toxicity of Garlic Juice and Dicofol to Population of Citrus Mites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20Atibi">Y. Atibi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Boutaleb%20Joutei"> A. Boutaleb Joutei</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Slimani"> T. Slimani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Insecticidal properties of Alliaceae are widely known, they are plant with varied biological properties. Garlic and onion are known for their positive effect on health, including the prevention of cardiovascular disease and some digestive cancers. These health benefits molecules are also responsible for pest potential control of Alliaceae. With these properties, we can consider using Alliaceae as acaricides. The purpose of this study was to compare the effect of chemical and biopesticides on citrus mites, especially Tetranychus urticae, Panonychus citri and Eutetranychus orientalis. Chemical treatment (Dicofol) and biopesticides (Garlic juice + Alcohol) applied on this study to control the various stages of mites, have reduced the proliferation of mobile forms and reducing the number of eggs to acceptable levels. Garlic juice + alcohol revealed efficiency from 50 to 57.69 % against the mobile forms of T. urticae, however, it was effective against the mobile forms of P. citri and E. orientalis with an efficiency of 85.71 % and 100 % respectively, its action has also reduced the number of eggs of T. urticae and E. orientalis at low levels. Therefore, this biopesticide is conceivable viewpoint technical and economic as the infestation by mite is low. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Garlic%20juice" title="Garlic juice">Garlic juice</a>, <a href="https://publications.waset.org/abstracts/search?q=acaricide" title=" acaricide"> acaricide</a>, <a href="https://publications.waset.org/abstracts/search?q=biopesticide" title=" biopesticide"> biopesticide</a>, <a href="https://publications.waset.org/abstracts/search?q=mites" title=" mites"> mites</a>, <a href="https://publications.waset.org/abstracts/search?q=alcohol" title=" alcohol"> alcohol</a>, <a href="https://publications.waset.org/abstracts/search?q=Tetranychus%20urticae" title=" Tetranychus urticae"> Tetranychus urticae</a>, <a href="https://publications.waset.org/abstracts/search?q=Panonychus%20citri" title=" Panonychus citri"> Panonychus citri</a>, <a href="https://publications.waset.org/abstracts/search?q=Eutetranychus%20orientalis." title=" Eutetranychus orientalis."> Eutetranychus orientalis.</a> </p> <a href="https://publications.waset.org/abstracts/19515/comparative-toxicity-of-garlic-juice-and-dicofol-to-population-of-citrus-mites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19515.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">524</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13</span> Heavy Metal Distribution in Tissues of Two Commercially Important Fish Species, Euryglossa orientalis and Psettodes erumei</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Khoshnood">Reza Khoshnood</a>, <a href="https://publications.waset.org/abstracts/search?q=Zahra%20Khoshnood"> Zahra Khoshnood</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Hajinajaf"> Ali Hajinajaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Fahim"> Farzad Fahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Behdokht%20Hajinajaf"> Behdokht Hajinajaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Fahim"> Farhad Fahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In 2013, 24 fish samples were taken from two fishery regions in Bandar-Abbas and Bandar-Lengeh, the fishing grounds north of Hormoz Strait (Persian Gulf) near the Iranian coastline. The two flat fishes were oriental sole (Euryglossa orientalis) and deep flounder (Psettodes erumei). Using the ROPME method (MOOPAM) for chemical digestion, Cd concentration was measured with a nonflame atomic absorption spectrophotometry technique. The average concentration of Cd in the edible muscle tissue of deep flounder was measured in Bandar-Abbas and was found to be 0.15±.06 µg g-1. It was 0.1±.05 µg.g-1 in Bandar-Lengeh. The corresponding values for oriental sole were 0.2±0.13 and 0.13±0.11 µg.g-1. The average concentration of Cd in the liver tissue of deep flounder in Bandar-Abbas was 0.22±.05 µg g-1 and that in Bandar-Lengeh was 0.2±0.04 µg.g-1. The values for oriental sole were 0.31±0.09 and 0.24±0.13 µg g-1 in Bandar-Abbas and Bandar-Lengeh, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=trace%20metal" title="trace metal">trace metal</a>, <a href="https://publications.waset.org/abstracts/search?q=Euryglossa%20orientalis" title=" Euryglossa orientalis"> Euryglossa orientalis</a>, <a href="https://publications.waset.org/abstracts/search?q=Psettodes%20erumei" title=" Psettodes erumei"> Psettodes erumei</a>, <a href="https://publications.waset.org/abstracts/search?q=Persian%20Gulf" title=" Persian Gulf"> Persian Gulf</a> </p> <a href="https://publications.waset.org/abstracts/13876/heavy-metal-distribution-in-tissues-of-two-commercially-important-fish-species-euryglossa-orientalis-and-psettodes-erumei" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13876.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">669</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> Effects of Oil Pollution on Euryglossa orientalis and Psettodes erumei in the Persian Gulf</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Majid%20Afkhami">Majid Afkhami</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Ehsanpour"> Maryam Ehsanpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Reza%20Khoshnood"> Reza Khoshnood</a>, <a href="https://publications.waset.org/abstracts/search?q=Zahra%20Khoshnood"> Zahra Khoshnood</a>, <a href="https://publications.waset.org/abstracts/search?q=Rastin%20Afkhami"> Rastin Afkhami</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Marine pollution is a global environmental problem. Different human activities on land, in the water and in the air contribute to the contamination of seawater, sediments and organisms with potentially toxic substances. Contaminants can be natural substances or artificially produced compounds. After discharge into the sea, contaminants can stay in the water in dissolved form or they can be removed from the water column through sedimentation to the bottom sediments. Histopathological alterations can be used as indicators for the effects of various anthropogenic pollutants on organisms and are a reflection of the overall health of the entire population in the ecosystem. These histo pathological biomarkers are closely related to other biomarkers of stress since many pollutants have to undergo metabolic activation in order to be able to provoke cellular change in the affected organism. In order to make evaluation of the effects of oil pollution, some heavy metals bioaccumulation and explore their histopathological effects on hepatocytes of Oriental sole (Euryglossa orientalis) and Deep flounder (Psettodes erumei), fishes caught from two areas of north coast of the Persian Gulf: Bandar Abbass and Bandar Lengeh. Concentrations of Ni and V in liver of both species in two sampling regions were in following order: Bandar abbass Bandar lengeh; also between two species, these quantities were higher in P. erumei than E. orientalis in both sampling regions. Histopathology of the liver shows some cellular alterations including: degeneration, necrosis and tissue disruption, and histopathological effects were severe in P. erumei than E. orientalis. Results showed that Bandar Abbass region was more polluted than Bandar Lengeh, and because Ni and V were oil pollution indicators, and two flat fishes were benthic, they can receive considerable amount of oil pollution through their biological activities like feeding. Also higher amounts of heavy metal concentrations and major histopathological effects in E. orientalis showed strong relationship between benthic habitat of the fish and amounts of received pollutants from water and sediments, because E. orientalis is more related to the bottom than P. erumei. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title="heavy metals">heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=flatfishes" title=" flatfishes"> flatfishes</a>, <a href="https://publications.waset.org/abstracts/search?q=Persian%20Gulf" title=" Persian Gulf"> Persian Gulf</a>, <a href="https://publications.waset.org/abstracts/search?q=oil%20pollution" title=" oil pollution"> oil pollution</a> </p> <a href="https://publications.waset.org/abstracts/33819/effects-of-oil-pollution-on-euryglossa-orientalis-and-psettodes-erumei-in-the-persian-gulf" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33819.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">343</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> The Effects of Copper and Cadmium on Germination and Seedling Growth of Oriental Beech (Fagus orientalis Lipsky) Seeds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Handan%20Ucun%20%C3%96zel">Handan Ucun Özel</a>, <a href="https://publications.waset.org/abstracts/search?q=Halil%20Bar%C4%B1%C5%9F%20%C3%96zel"> Halil Barış Özel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The toxic effects of copper and cadmium on seed germination, seedling, root, shoot length, and seedling dry biomass of oriental beech (Fagus orientalis Lipsky) was evaluated under laboratory conditions compared to control values. Copper and cadmium treatments at 50, 100, 150, and 200 mg/l affect seed germination and seedling growth of oriental beech as compared to control. Copper treatments at 50, 100, 150, and 200 mg/l concentrations produced significant (p < 0.01) effects on seed germination and seedling length of oriental beech while copper treatment at 150 mg/l significantly affected root growth and seedling dry biomass as compared to control. Similarly, cadmium treatments from 50 to 200 mg/l affected the seed germination, root, shoot length, and seedling dry biomass of oriental beech as compared to control. Cadmium treatments showed an adverse effect on seedlings of oriental beech as compared to copper, copper and cadmium treatments at 200mg/l exhibited the lowest percentage of tolerance in seedlings of oriental beech as compared to control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=copper" title="copper">copper</a>, <a href="https://publications.waset.org/abstracts/search?q=cadmium" title=" cadmium"> cadmium</a>, <a href="https://publications.waset.org/abstracts/search?q=toxicity" title=" toxicity"> toxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=oriental%20beech" title=" oriental beech"> oriental beech</a> </p> <a href="https://publications.waset.org/abstracts/13800/the-effects-of-copper-and-cadmium-on-germination-and-seedling-growth-of-oriental-beech-fagus-orientalis-lipsky-seeds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13800.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">296</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">10</span> Sea Surface Temperature and Climatic Variables as Drivers of North Pacific Albacore Tuna Thunnus Alalunga Time Series</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ashneel%20Ajay%20Singh">Ashneel Ajay Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Naoki%20Suzuki"> Naoki Suzuki</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazumi%20Sakuramoto"> Kazumi Sakuramoto</a>, <a href="https://publications.waset.org/abstracts/search?q=Swastika%20Roshni"> Swastika Roshni</a>, <a href="https://publications.waset.org/abstracts/search?q=Paras%20Nath"> Paras Nath</a>, <a href="https://publications.waset.org/abstracts/search?q=Alok%20Kalla"> Alok Kalla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Albacore tuna (Thunnus alalunga) is one of the commercially important species of tuna in the North Pacific region. Despite the long history of albacore fisheries in the Pacific, its ecological characteristics are not sufficiently understood. The effects of changing climate on numerous commercially and ecologically important fish species including albacore tuna have been documented over the past decades. The objective of this study was to explore and elucidate the relationship of environmental variables with the stock parameters of albacore tuna. The relationship of the North Pacific albacore tuna recruitment (R), spawning stock biomass (SSB) and recruits per spawning biomass (RPS) from 1970 to 2012 with the environmental factors of sea surface temperature (SST), Pacific decadal oscillation (PDO), El Niño southern oscillation (ENSO) and Pacific warm pool index (PWI) was construed. SST and PDO were used as independent variables with SSB to construct stock reproduction models for R and RPS as they showed most significant relationship with the dependent variables. ENSO and PWI were excluded due to collinearity effects with SST and PDO. Model selections were based on R2 values, Akaike Information Criterion (AIC) and significant parameter estimates at p<0.05. Models with single independent variables of SST, PDO, ENSO and PWI were also constructed to illuminate their individual effect on albacore R and RPS. From the results it can be said that SST and PDO resulted in the most significant models for reproducing North Pacific albacore tuna R and RPS time series. SST has the highest impact on albacore R and RPS when comparing models with single environmental variables. It is important for fishery managers and decision makers to incorporate the findings into their albacore tuna management plans for the North Pacific Oceanic region. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Albacore%20tuna" title="Albacore tuna">Albacore tuna</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Ni%C3%B1o%20southern%20oscillation" title=" El Niño southern oscillation"> El Niño southern oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=Pacific%20decadal%20oscillation" title=" Pacific decadal oscillation"> Pacific decadal oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20surface%20temperature" title=" sea surface temperature"> sea surface temperature</a> </p> <a href="https://publications.waset.org/abstracts/45663/sea-surface-temperature-and-climatic-variables-as-drivers-of-north-pacific-albacore-tuna-thunnus-alalunga-time-series" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45663.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">231</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> Climate Related Variability and Stock-Recruitment Relationship of the North Pacific Albacore Tuna </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ashneel%20Ajay%20Singh">Ashneel Ajay Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Naoki%20Suzuki"> Naoki Suzuki</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazumi%20Sakuramoto"> Kazumi Sakuramoto</a>, <a href="https://publications.waset.org/abstracts/search?q="> </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The North Pacific albacore (Thunnus alalunga) is a temperate tuna species distributed in the North Pacific which is of significant economic importance to the Pacific Island Nations and Territories. Despite its importance, the stock dynamics and ecological characteristics of albacore still, have gaps in knowledge. The stock-recruitment relationship of the North Pacific stock of albacore tuna was investigated for different density-dependent effects and a regime shift in the stock characteristics in response to changes in environmental and climatic conditions. Linear regression analysis for recruit per spawning biomass (RPS) and recruitment (R) against the female spawning stock biomass (SSB) were significant for the presence of different density-dependent effects and positive for a regime shift in the stock time series. Application of Deming regression to RPS against SSB with the assumption for the presence of observation and process errors in both the dependent and independent variables confirmed the results of simple regression. However, R against SSB results disagreed given variance level of < 3 and agreed with linear regression results given the assumption of variance ≥ 3. Assuming the presence of different density-dependent effects in the albacore tuna time series, environmental and climatic condition variables were compared with R, RPS, and SSB. The significant relationship of R, RPS and SSB were determined with the sea surface temperature (SST), Pacific Decadal Oscillation (PDO) and multivariate El Niño Southern Oscillation (ENSO) with SST being the principal variable exhibiting significantly similar trend with R and RPS. Recruitment is significantly influenced by the dynamics of the SSB as well as environmental conditions which demonstrates that the stock-recruitment relationship is multidimensional. Further investigation of the North Pacific albacore tuna age-class and structure is necessary for further support the results presented here. It is important for fishery managers and decision makers to be vigilant of regime shifts in environmental conditions relating to albacore tuna as it may possibly cause regime shifts in the albacore R and RPS which should be taken into account to effectively and sustainability formulate harvesting plans and management of the species in the North Pacific oceanic region. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Albacore%20tuna" title="Albacore tuna">Albacore tuna</a>, <a href="https://publications.waset.org/abstracts/search?q=Thunnus%20alalunga" title=" Thunnus alalunga"> Thunnus alalunga</a>, <a href="https://publications.waset.org/abstracts/search?q=recruitment" title=" recruitment"> recruitment</a>, <a href="https://publications.waset.org/abstracts/search?q=spawning%20stock%20biomass" title=" spawning stock biomass"> spawning stock biomass</a>, <a href="https://publications.waset.org/abstracts/search?q=recruits%20per%20spawning%20biomass" title=" recruits per spawning biomass"> recruits per spawning biomass</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20surface%20temperature" title=" sea surface temperature"> sea surface temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=pacific%20decadal%20oscillation" title=" pacific decadal oscillation"> pacific decadal oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Ni%C3%B1o%20southern%20oscillation" title=" El Niño southern oscillation"> El Niño southern oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=density-dependent%20effects" title=" density-dependent effects"> density-dependent effects</a>, <a href="https://publications.waset.org/abstracts/search?q=regime%20shift" title=" regime shift"> regime shift</a> </p> <a href="https://publications.waset.org/abstracts/62113/climate-related-variability-and-stock-recruitment-relationship-of-the-north-pacific-albacore-tuna" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62113.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">307</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Reproductive Biology and Lipid Content of Albacore Tuna (Thunnus alalunga) in the Western Indian Ocean</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zahirah%20Dhurmeea">Zahirah Dhurmeea</a>, <a href="https://publications.waset.org/abstracts/search?q=Iker%20Zudaire"> Iker Zudaire</a>, <a href="https://publications.waset.org/abstracts/search?q=Heidi%20Pethybridge"> Heidi Pethybridge</a>, <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Chassot"> Emmanuel Chassot</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Cedras"> Maria Cedras</a>, <a href="https://publications.waset.org/abstracts/search?q=Natacha%20Nikolic"> Natacha Nikolic</a>, <a href="https://publications.waset.org/abstracts/search?q=Jerome%20Bourjea"> Jerome Bourjea</a>, <a href="https://publications.waset.org/abstracts/search?q=Wendy%20West"> Wendy West</a>, <a href="https://publications.waset.org/abstracts/search?q=Chandani%20Appadoo"> Chandani Appadoo</a>, <a href="https://publications.waset.org/abstracts/search?q=Nathalie%20Bodin"> Nathalie Bodin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Scientific advice on the status of fish stocks relies on indicators that are based on strong assumptions on biological parameters such as condition, maturity and fecundity. Currently, information on the biology of albacore tuna, Thunnus alalunga, in the Indian Ocean is scarce. Consequently, many parameters used in stock assessment models for Indian Ocean albacore originate largely from other studied stocks or species of tuna. Inclusion of incorrect biological data in stock assessment models would lead to inappropriate estimates of stock status used by fisheries manager’s to establish future catch allowances. The reproductive biology of albacore tuna in the western Indian Ocean was examined through analysis of the sex ratio, spawning season, length-at-maturity (L50), spawning frequency, fecundity and fish condition. In addition, the total lipid content (TL) and lipid class composition in the gonads, liver and muscle tissues of female albacore during the reproductive cycle was investigated. A total of 923 female and 867 male albacore were sampled from 2013 to 2015. A bias in sex-ratio was found in favour of females with fork length (LF) <100 cm. Using histological analyses and gonadosomatic index, spawning was found to occur between 10°S and 30°S, mainly to the east of Madagascar from October to January. Large females contributed more to reproduction through their longer spawning period compared to small individuals. The L50 (mean ± standard error) of female albacore was estimated at 85.3 ± 0.7 cm LF at the vitellogenic 3 oocyte stage maturity threshold. Albacore spawn on average every 2.2 days within the spawning region and spawning months from November to January. Batch fecundity varied between 0.26 and 2.09 million eggs and the relative batch fecundity (mean  standard deviation) was estimated at 53.4 ± 23.2 oocytes g-1 of somatic-gutted weight. Depending on the maturity stage, TL in ovaries ranged from 7.5 to 577.8 mg g-1 of wet weight (ww) with different proportions of phospholipids (PL), wax esters (WE), triacylglycerol (TAG) and sterol (ST). The highest TL were observed in immature (mostly TAG and PL) and spawning capable ovaries (mostly PL, WE and TAG). Liver TL varied from 21.1 to 294.8 mg g-1 (ww) and acted as an energy (mainly TAG and PL) storage prior to reproduction when the lowest TL was observed. Muscle TL varied from 2.0 to 71.7 g-1 (ww) in mature females without a clear pattern between maturity stages, although higher values of up to 117.3 g-1 (ww) was found in immature females. TL results suggest that albacore could be viewed predominantly as a capital breeder relying mostly on lipids stored before the onset of reproduction and with little additional energy derived from feeding. This study is the first one to provide new information on the reproductive development and classification of albacore in the western Indian Ocean. The reproductive parameters will reduce uncertainty in current stock assessment models which will eventually promote sustainability of the fishery. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=condition" title="condition">condition</a>, <a href="https://publications.waset.org/abstracts/search?q=size-at-maturity" title=" size-at-maturity"> size-at-maturity</a>, <a href="https://publications.waset.org/abstracts/search?q=spawning%20behaviour" title=" spawning behaviour"> spawning behaviour</a>, <a href="https://publications.waset.org/abstracts/search?q=temperate%20tuna" title=" temperate tuna"> temperate tuna</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20lipid%20content" title=" total lipid content"> total lipid content</a> </p> <a href="https://publications.waset.org/abstracts/58651/reproductive-biology-and-lipid-content-of-albacore-tuna-thunnus-alalunga-in-the-western-indian-ocean" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58651.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">260</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Breeding Biology of the House Crow Corvus splendens at Hazara University, Garden Campus, Mansehra, Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Awais">Muhammad Awais</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Study on the nesting biology of the House Crow Corvus splendens was conducted at Hazara University, Garden Campus (125 acres), Mansehra during the 2013 breeding season (June to September). Details about nest locations, tree characteristics, nest and egg characteristics were recorded. Mean nest density of House Crow was 2.4 nests/ acre. Mean tree and nest height were 14.8±6.30 and 11.8±5.42m. Mean tree canopy spread 9.5±2.48m. Mean maximum and minimum nest diameters were 42.3±2.08 and 39.0±1.73cm respectively while maximum and minimum diameters of nest cup were 15.6±1.52 and 13.3±1.15cm respectively. Nest depth and nest cup depth were measured 19.3±2.08 and 8.3±1.15cm respectively. Mean nest weight was 1.4±0.24 kg. Mean clutch size was 4.0 (ranged 1–6). Mean egg length was 38.6±0.69mm, breadth 26.0±0.69mm, egg volume 13.3±0.83cm3 and egg shape index 1.42±0.83. Mean egg weight was 12.3±0.70g. Egg and nest success was calculated 55.1% and 69.0%. Hatchlings and fledglings produced per nest were 2.20 and 1.44 respectively. Main reasons for reproductive failures were unhatched eggs, poor nest construction, bad weather conditions and observer’s disturbance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breeding" title="breeding">breeding</a>, <a href="https://publications.waset.org/abstracts/search?q=Corvus%20splendens" title=" Corvus splendens"> Corvus splendens</a>, <a href="https://publications.waset.org/abstracts/search?q=fledglings" title=" fledglings"> fledglings</a>, <a href="https://publications.waset.org/abstracts/search?q=Hazara%20university" title=" Hazara university"> Hazara university</a>, <a href="https://publications.waset.org/abstracts/search?q=house%20crow" title=" house crow"> house crow</a>, <a href="https://publications.waset.org/abstracts/search?q=Mansehra" title=" Mansehra"> Mansehra</a>, <a href="https://publications.waset.org/abstracts/search?q=populus%20orientalis" title=" populus orientalis"> populus orientalis</a> </p> <a href="https://publications.waset.org/abstracts/30057/breeding-biology-of-the-house-crow-corvus-splendens-at-hazara-university-garden-campus-mansehra-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30057.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">407</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> Medicinal and Aromatic Plants of Borcka (Artvin)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=%C3%96zg%C3%BCr%20Emi%CC%87na%C4%9Fao%C4%9Flu">Özgür Emi̇nağaoğlu</a>, <a href="https://publications.waset.org/abstracts/search?q=Hayal%20Akyildirim%20Be%C4%9Fen"> Hayal Akyildirim Beğen</a>, <a href="https://publications.waset.org/abstracts/search?q=%C5%9Eevval%20Sali%CC%87o%C4%9Flu"> Şevval Sali̇oğlu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the plant used for purification and aromatic purposes by the public in Adagül, Akpınar, Alaca, Ambarlı, Arkaköy, Avcılar, Balcı, Civan, Demirciler, Düzköy, İbrikli, Kale, Kaynarca and Taraklı villages in Borcka (Artvin) district between 2020-2022. The purpose of the study, determining the surgical common and local names, regions, botanical features, used parts of plants, purpose of use, local usage intensive, and giving literature data. The research area is located on the A8 square according to Davis's grid system; its phytogeographic extensions are in the Holarctic regions, and the Euro-Siberian flora settlement is in the Colchic subsection of the Euxine region. In the research area, 71 personal questionnaires were applied. As a result of the surveys, it was determined that 93 plant species belonging to 44 families were used by the local people for purification and aromatic purposes. The families that contain the most taxa in the research area are, respectively, Rosaceae (15 taxa), Astericaeae (9 taxa), Lamiaceae (7 taxa), Crassulaceae (4 taxa). As a result of the survey studies, Plantago major L. is known by almost all participants. The most used plants were Allium scorodoprasum, Helichrysum arenarium, Alnus glutinosa subsp. barbata, Juglans regia, Tilia rubra subsp. caucasica, Picea orientalis, Urtica dioica. These plants are used in the treatment of many diseases. Some of these plants that grow in Borçka are used in different countries for the treatment of the same diseases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artvin" title="artvin">artvin</a>, <a href="https://publications.waset.org/abstracts/search?q=bor%C3%A7ka" title=" borçka"> borçka</a>, <a href="https://publications.waset.org/abstracts/search?q=medicinal" title=" medicinal"> medicinal</a>, <a href="https://publications.waset.org/abstracts/search?q=aromatic" title=" aromatic"> aromatic</a>, <a href="https://publications.waset.org/abstracts/search?q=plant" title=" plant"> plant</a> </p> <a href="https://publications.waset.org/abstracts/171395/medicinal-and-aromatic-plants-of-borcka-artvin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171395.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">70</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> Study on Developmental and Pathogenesis Related Genes Expression Deregulation in Brassica compestris Infected with 16Sr-IX Associated Phytoplasma </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samina%20Jam%20Nazeer%20Ahmad">Samina Jam Nazeer Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Samia%20%20Yasin"> Samia Yasin</a>, <a href="https://publications.waset.org/abstracts/search?q=Ijaz%20Ahmad"> Ijaz Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Tahir"> Muhammad Tahir</a>, <a href="https://publications.waset.org/abstracts/search?q=Jam%20Nazeer%20Ahmad"> Jam Nazeer Ahmad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phytoplasmas are phloem-inhibited plant pathogenic bacteria that are transferred by insect vectors. Among biotic factors, Phytoplasma infection induces abnormality influencing the physiology as well as morphology of plants. In 16Sr-IX group phytoplasma-infected brassica compestris, flower abnormalities have been associated with changes in the expression of floral development genes. To determine whether methylation was involved in down-regulation of flower development, the process of DNA methylation and Demethylation was investigated as a possible mechanism for regulation of floral gene expression in phytoplasma infected Brassica transmitted by Orosious orientalis vector by using RT-PCR, MSRE-PCR, Southern blotting, Bisulfite Sequencing, etc. Transcriptional expression of methylated genes was found to be globally down-regulated in plants infected with phytoplasma, but not severely in those infested by insect vectors and variation in expression was found in genes involved in methylation. These results also showed that genes particularly orthologous to Arabidopsis APETALA3 involved in petal formation and flower development was down-regulated severely in phytoplasma-infected brassica and with the fact that phytoplasma and insect induce variation in developmental gene expression. The DNA methylation status of flower developmental gene in phytoplasma infected plants with 5-azacytidine restored gene expression strongly suggesting that DNA methylation was involved in down-regulation of floral development genes in phytoplasma infected brassica. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genes%20expression" title="genes expression">genes expression</a>, <a href="https://publications.waset.org/abstracts/search?q=phytoplasma" title=" phytoplasma"> phytoplasma</a>, <a href="https://publications.waset.org/abstracts/search?q=DNA%20methylation" title=" DNA methylation"> DNA methylation</a>, <a href="https://publications.waset.org/abstracts/search?q=flower%20development" title=" flower development"> flower development</a> </p> <a href="https://publications.waset.org/abstracts/87401/study-on-developmental-and-pathogenesis-related-genes-expression-deregulation-in-brassica-compestris-infected-with-16sr-ix-associated-phytoplasma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87401.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">374</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Analysis of Socio-Economics of Tuna Fisheries Management (Thunnus Albacares Marcellus Decapterus) in Makassar Waters Strait and Its Effect on Human Health and Policy Implications in Central Sulawesi-Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siti%20Rahmawati">Siti Rahmawati</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Indonesia has had long period of monetary economic crisis and it is followed by an upward trend in the price of fuel oil. This situation impacts all aspects of tuna fishermen community. For instance, the basic needs of fishing communities increase and the lower purchasing power then lead to economic and social instability as well as the health of fishermen household. To understand this AHP method is applied to acknowledge the model of tuna fisheries management priorities and cold chain marketing channel and the utilization levels that impact on human health. The study is designed as a development research with the number of 180 respondents. The data were analyzed by Analytical Hierarchy Process (AHP) method. The development of tuna fishery business can improve productivity of production with economic empowerment activities for coastal communities, improving the competitiveness of products, developing fish processing centers and provide internal capital for the development of optimal fishery business. From economic aspects, fishery business is more attracting because the benefit cost ratio of 2.86. This means that for 10 years, the economic life of this project can work well as B/C> 1 and therefore the rate of investment is economically viable. From the health aspects, tuna can reduce the risk of dying from heart disease by 50%, because tuna contain selenium in the human body. The consumption of 100 g of tuna meet 52.9% of the selenium in the body and activating the antioxidant enzyme glutathione peroxidaxe which can protect the body from free radicals and stimulate various cancers. The results of the analytic hierarchy process that the quality of tuna products is the top priority for export quality as well as quality control in order to compete in the global market. The implementation of the policy can increase the income of fishermen and reduce the poverty of fishermen households and have impact on the human health whose has high risk of disease. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=management%20of%20tuna" title="management of tuna">management of tuna</a>, <a href="https://publications.waset.org/abstracts/search?q=social" title=" social"> social</a>, <a href="https://publications.waset.org/abstracts/search?q=economic" title=" economic"> economic</a>, <a href="https://publications.waset.org/abstracts/search?q=health" title=" health"> health</a> </p> <a href="https://publications.waset.org/abstracts/29569/analysis-of-socio-economics-of-tuna-fisheries-management-thunnus-albacares-marcellus-decapterus-in-makassar-waters-strait-and-its-effect-on-human-health-and-policy-implications-in-central-sulawesi-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29569.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">316</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> The Influence of Forest Management Histories on Dead and Habitat Trees in the Old Growth Forest in Northern Iran</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kiomars%20Sefidi">Kiomars Sefidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dead and habitat tree such as fallen logs, snags, stumps and cracks and loos bark etc. is regarded as an important ecological component of forests on which many forest dwelling species depend, yet its relation to management history in Caspian forest has gone unreported. The aim of research was to compare the amounts of dead tree and habitat in the forests with historically different intensities of management, including: forests with the long term implication of management (PS), the short-term implication of management (NS) which were compared with semi virgin forest (GS). The number of 405 individual dead and habitat trees were recorded and measured at 109 sampling locations. ANOVA revealed volume of the dead tree in the form and decay classes significantly differ within sites and dead volume in the semi virgin forest significantly higher than managed sites. Comparing the amount of dead and habitat tree in three sites showed that dead tree volume related with management history and significantly differ in three study sites. Also, the numbers of habitat trees including cavities, Cracks and loose bark and Fork split trees significantly vary among sites. Reaching their highest in virgin site and their lowest in the site with the long term implication of management, it was concluded that forest management cause reduction of the amount of dead and habitat tree. Forest management history affect the forest's ability to generate dead tree especially in a large size, thus managing this forest according to ecological sustainable principles require a commitment to maintaining stand structure that allow, continued generation of dead tree in a full range of size. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forest%20biodiversity" title="forest biodiversity">forest biodiversity</a>, <a href="https://publications.waset.org/abstracts/search?q=cracks%20trees" title=" cracks trees"> cracks trees</a>, <a href="https://publications.waset.org/abstracts/search?q=fork%20split%20trees" title=" fork split trees"> fork split trees</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20management" title=" sustainable management"> sustainable management</a>, <a href="https://publications.waset.org/abstracts/search?q=Fagus%20orientalis" title=" Fagus orientalis"> Fagus orientalis</a>, <a href="https://publications.waset.org/abstracts/search?q=Iran" title=" Iran"> Iran</a> </p> <a href="https://publications.waset.org/abstracts/33463/the-influence-of-forest-management-histories-on-dead-and-habitat-trees-in-the-old-growth-forest-in-northern-iran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33463.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">555</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Management and Genetic Characterization of Local Sheep Breeds for Better Productive and Adaptive Traits</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sonia%20Bedhiaf-Romdhani">Sonia Bedhiaf-Romdhani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The sheep (Ovis aries) was domesticated, approximately 11,000 years ago (YBP), in the Fertile Crescent from Asian Mouflon (Ovis Orientalis). The Northern African (NA) sheep is 7,000 years old, represents a remarkable diversity of sheep populations reared under traditional and low input farming systems (LIFS) over millennia. The majority of small ruminants in developing countries are encountered in low input production systems and the resilience of local communities in rural areas is often linked to the wellbeing of small ruminants. Regardless of the rich biodiversity encountered in sheep ecotypes there are four main sheep breeds in the country with 61,6 and 35.4 percents of Barbarine (fat tail breed) and Queue Fine de l’Ouest (thin tail breed), respectively. Phoenicians introduced the Barbarine sheep from the steppes of Central Asia in the Carthaginian period, 3000 years ago. The Queue Fine de l’Ouest is a thin-tailed meat breed heavily concentrated in the Western and the central semi-arid regions. The Noire de Thibar breed, involving mutton-fine wool producing animals, has been on the verge of extinction, it’s a composite black coated sheep breed found in the northern sub-humid region because of its higher nutritional requirements and non-tolerance of the prevailing harsher condition. The D'Man breed, originated from Morocco, is mainly located in the southern oases of the extreme arid ecosystem. A genetic investigation of Tunisian sheep breeds using a genome-wide scan of approximately 50,000 SNPs was performed. Genetic analysis of relationship between breeds highlighted the genetic differentiation of Noire de Thibar breed from the other local breeds, reflecting the effect of past events of introgression of European gene pool. The Queue Fine de l’Ouest breed showed a genetic heterogeneity and was close to Barbarine. The D'Man breed shared a considerable gene flow with the thin-tailed Queue Fine de l'Ouest breed. Native small ruminants breeds, are capable to be efficiently productive if essential ingredients and coherent breeding schemes are implemented and followed. Assessing the status of genetic variability of native sheep breeds could provide important clues for research and policy makers to devise better strategies for the conservation and management of genetic resources. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sheep" title="sheep">sheep</a>, <a href="https://publications.waset.org/abstracts/search?q=farming%20systems" title=" farming systems"> farming systems</a>, <a href="https://publications.waset.org/abstracts/search?q=diversity" title=" diversity"> diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=SNPs." title=" SNPs."> SNPs.</a> </p> <a href="https://publications.waset.org/abstracts/149566/management-and-genetic-characterization-of-local-sheep-breeds-for-better-productive-and-adaptive-traits" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149566.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">147</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> The Efficiency of Mechanization in Weed Control in Artificial Regeneration of Oriental Beech (Fagus orientalis Lipsky.)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tu%C4%9Frul%20Varol">Tuğrul Varol</a>, <a href="https://publications.waset.org/abstracts/search?q=Halil%20Bar%C4%B1%C5%9F%20%C3%96zel"> Halil Barış Özel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study which has been conducted in Akçasu Forest Range District of Devrek Forest Directorate; 3 methods (cover removal with human force, cover removal with Hitachi F20 Excavator, and cover removal with agricultural equipment mounted on a Ferguson 240S agriculture tractor) utilized in weed control efforts in regeneration of degraded oriental beech forests have been compared. In this respect, 3 methods have been compared by determining certain work hours and standard durations of unit areas (1 hectare). For this purpose, evaluating the tasks made with human and machine force from the aspects of duration, productivity and costs, it has been aimed to determine the most productive method in accordance with the actual ecological conditions of research field. Within the scope of the study, the time studies have been conducted for 3 methods used in weed control efforts. While carrying out those studies, the performed implementations have been evaluated by dividing them into business stages. Also, the actual data have been used while calculating the cost accounts. In those calculations, the latest formulas and equations which are also used in developed countries have been utilized. The variance of analysis (ANOVA) was used in order to determine whether there is any statistically significant difference among obtained results, and the Duncan test was used for grouping if there is significant difference. According to the measurements and findings carried out within the scope of this study, it has been found during living cover removal efforts in regeneration efforts in demolished oriental beech forests that the removal of weed layer in 1 hectare of field has taken 920 hours with human force, 15.1 hours with excavator and 60 hours with an equipment mounted on a tractor. On the other hand, it has been determined that the cost of removal of living cover in unit area (1 hectare) was 3220.00 TL for man power, 788.70 TL for excavator and 2227.20 TL for equipment mounted on a tractor. According to the obtained results, it has been found that the utilization of excavator in weed control effort in regeneration of degraded oriental beech regions under actual ecological conditions of research field has been found to be more productive from both of aspects of duration and costs. These determinations carried out should be repeated in weed control efforts in degraded forest fields with different ecological conditions, it is compulsory for finding the most efficient weed control method. These findings will light the way of technical staff of forestry directorate in determination of the most effective and economic weed contol method. Thus, the more actual data will be used while preparing the weed control budgets, and there will be significant contributions to national economy. Also the results of this and similar studies are very important for developing the policies for our forestry in short and long term. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20regeneration" title="artificial regeneration">artificial regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=weed%20control" title=" weed control"> weed control</a>, <a href="https://publications.waset.org/abstracts/search?q=oriental%20beech" title=" oriental beech"> oriental beech</a>, <a href="https://publications.waset.org/abstracts/search?q=productivity" title=" productivity"> productivity</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanization" title=" mechanization"> mechanization</a>, <a href="https://publications.waset.org/abstracts/search?q=man%20power" title=" man power"> man power</a>, <a href="https://publications.waset.org/abstracts/search?q=cost%20analysis" title=" cost analysis"> cost analysis</a> </p> <a href="https://publications.waset.org/abstracts/13768/the-efficiency-of-mechanization-in-weed-control-in-artificial-regeneration-of-oriental-beech-fagus-orientalis-lipsky" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13768.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">418</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET 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