Modified Mangrove Pens for Polyculture System in Mud Crab (Scylla serrata) and Milkfish (Chanos chanos) Production

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Polyculture System in Mud Crab (Scylla serrata) and Milkfish (Chanos chanos) Production</title> <meta name="description" content="Modified Mangrove Pens for Polyculture System in Mud Crab (Scylla serrata) and Milkfish (Chanos chanos) Production"> <meta name="keywords" content="aquasilviculture, milkfish, modified mangrove pen, mud crab, polyculture, production rate"> <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 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87481</div> </div> </div> </div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Modified Mangrove Pens for Polyculture System in Mud Crab (Scylla serrata) and Milkfish (Chanos chanos) Production</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Laurence%20G.%20Almoguera">Laurence G. Almoguera</a>, <a href="https://publications.waset.org/abstracts/search?q=Vitaliana%20U.%20Malamug"> Vitaliana U. Malamug</a>, <a href="https://publications.waset.org/abstracts/search?q=Armando%20N.%20Espino"> Armando N. Espino</a>, <a href="https://publications.waset.org/abstracts/search?q=Marvin%20M.%20Cinense"> Marvin M. Cinense</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mangrove pens were modified to produce mud crab (Scylla serrata) and milkfish (Chanos chanos) in a polyculture system. The modification of mangrove pens was done by adding excavations inside the pen. The water quality parameters (dissolved oxygen, pH, salinity, and temperature) were monitored, the recovery and the production rate in each pen were evaluated. The experiment was conducted for a rearing period of 143 days in nine mangrove pens, each having an area of 32 m² with an average net enclosure height of 3 m from the soil surface. The three different pens constructed (existing design - with canal only, with 43% excavation by area, and 54% excavation by area) were designated as T₁, T₂, and T₃, respectively. All experimental units were stocked with 31 pieces of crablets (with 33.3 g average weight) and additional 130 pieces of milkfish fingerlings (with 0.11 g average weight) to the modified mangrove pens. The water quality parameters recorded in the pens were favorable for the growth and recovery of the mud crab and milkfish, except for dissolved oxygen (DO). It was found to be the reason for the total mortality of the stocked milkfish. For mud crab, the highest mean recovery was recorded in T₂ (34.41%), followed by T₃ (26.91%) and the lowest in T1 (21.50%). The production rate followed the same trend as the recovery, where T₂ (74.49 g/m²) obtained the highest, followed by T₃ (55 g/m2) and the lowest was in T₁ (34.87 g/m²). The statistical analysis revealed that the variations of the mud crab recovery were not significant, while in terms of production rate, modified mangrove pens were found to be more effective than the existing design. Due to the total mortality of the cultured milkfish, the current set-up of modified mangrove pens was found to be not suitable for the polyculture system of milkfish and mud crab production. <iframe src="https://publications.waset.org/abstracts/143471.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aquasilviculture" title="aquasilviculture">aquasilviculture</a>, <a href="https://publications.waset.org/abstracts/search?q=milkfish" title=" milkfish"> milkfish</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20mangrove%20pen" title=" modified mangrove pen"> modified mangrove pen</a>, <a href="https://publications.waset.org/abstracts/search?q=mud%20crab" title=" mud crab"> mud crab</a>, <a href="https://publications.waset.org/abstracts/search?q=polyculture" title=" polyculture"> polyculture</a>, <a href="https://publications.waset.org/abstracts/search?q=production%20rate" title=" production rate"> production rate</a> </p> <a href="https://publications.waset.org/abstracts/143471/modified-mangrove-pens-for-polyculture-system-in-mud-crab-scylla-serrata-and-milkfish-chanos-chanos-production" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143471.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">199</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" 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Modified Mangrove Pens for Polyculture System in Mud Crab (Scylla serrata) and Milkfish (Chanos chanos) Production