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Download nu de gratis MySSI-app!</p><button>Nu downloaden</button></div></a></div></div></div><div class="navigation-panel" data-main-nav-type="panel" data-main-nav-id="2"><div class="navigation-panel-inner navigation-panel-layout-left"><div class="navigation-grid"> <a data-navigation-url-context="www" data-image-copyright="&copy Predrag Vuckovic" href="https://www.divessi.com/nl/course-event-calendar/training" style="background-image:url('https://cdn.divessi.com/cached/websiteFiles/12_course-calendar/categories/Student_Courses_Mares-Predrag-Vuckovic.jpg/400.jpg')"> Opleiding voor studenten </a> <a data-navigation-url-context="www" data-image-copyright="&copy Predrag Vuckovic" href="https://www.divessi.com/nl/course-event-calendar/training_pro" style="background-image:url('https://cdn.divessi.com/cached/websiteFiles/12_course-calendar/categories/Pro_Courses_Mares-Predrag-Vuckovic.jpg/400.jpg')"> Professional cursussen </a> <a data-navigation-url-context="www" data-image-copyright="&copy Shutterstock Mladen Mitrinovic" href="https://www.divessi.com/nl/course-event-calendar/travel" style="background-image:url('https://cdn.divessi.com/cached/websiteFiles/12_course-calendar/categories/Tours_Shutterstock-Mladen-Mitrinovic.jpg/400.jpg')"> Reizen </a> <a data-navigation-url-context="www" data-image-copyright="&copy Shutterstock View Apart" href="https://www.divessi.com/nl/course-event-calendar/social" style="background-image:url('https://cdn.divessi.com/cached/websiteFiles/12_course-calendar/categories/Social_Events_Shutterstock-View-Apart.jpg/400.jpg')"> Gemeenschapsevenement </a> <a data-navigation-url-context="www" data-image-copyright="&copy iStock swissmediavision" href="https://www.divessi.com/nl/course-event-calendar/blue_oceans" style="background-image:url('https://cdn.divessi.com/cached/websiteFiles/12_course-calendar/categories/Blue_Oceans_iStock-swissmediavision.jpg/400.jpg')"> Opruimacties </a> <a data-navigation-url-context="www" data-image-copyright="&copy Tom Huckert" href="https://www.divessi.com/nl/course-event-calendar/equipment_service" style="background-image:url('https://cdn.divessi.com/cached/websiteFiles/12_course-calendar/categories/Service_SSI-Tom-Huckert.jpg/400.jpg')"> Uitrusting Service </a></div><div class="navigation-promo-area navigation-promo-layout-grid"><a href="https://www.divessi.com/nl/course-event-calendar" class="navigation-promo-item" data-navigation-url-context="www"><img loading="lazy" src="https://cdn.divessi.com/cached/websiteFiles/6_landingpages/course-finder/Shutterstock-EyesTravelling.jpg/400.jpg" alt="Boek je volgende duikcursus - SSI Cursus & Evenementenkalender" /><div><h3>Boek je volgende duikcursus - SSI Cursus & Evenementenkalender</h3><p>Ontdek cursussen voor beginners tot instructeurs, gemeenschapsevenementen en wereldwijde duikexcursies. Dompel jezelf onder in een wereld vol ontdekkingen en onvergetelijke ervaringen met onze SSI cursus- en evenementenkalender.</p><button>Lees meer</button></div></a></div></div></div><div class="navigation-panel" data-main-nav-type="panel" data-main-nav-id="3"><div class="navigation-panel-inner navigation-panel-layout-right"><div class="navigation-promo-area navigation-promo-layout-flat"><a href="https://www.divessi.com/nl/locator/trainingcenters" class="navigation-promo-item" data-navigation-url-context="www"><img loading="lazy" src="https://my.divessi.com/dropbox-2/SSI_Corp_Graphics/websiteFiles/7_icons/locator-pins/Center.svg" alt="SSI Center Locator - vind je trainingscentrum voor al je komende onderwateravonturen!" /><div><h3>SSI Center Locator - vind je trainingscentrum voor al je komende onderwateravonturen!</h3><p>Zoek met de center locator bij je in de buurt of waar ter wereld je ook heen wil reizen en vind een partner naar keuze. Bekijk welke duikstekken ze aandoen, bekijk hun komende opleidingsschema, reizen en sociale evenementen, en nog veel meer.</p><button>Zoek een Training Center of Resort</button></div></a><a href="https://www.divessi.com/nl/locator/divesites" class="navigation-promo-item" data-navigation-url-context="www"><img loading="lazy" src="https://my.divessi.com/dropbox-2/SSI_Corp_Graphics/websiteFiles/7_icons/locator-pins/Dive_Site.svg" alt="SSI Duikstekken Locator – Eenvoudig plannen van duikvakanties. Laat je nu inspireren!" /><div><h3>SSI Duikstekken Locator – Eenvoudig plannen van duikvakanties. Laat je nu inspireren!</h3><p>Verken duizenden geverifieerde duikdstekken over de hele wereld: kijk welke dieren je op elke locatie kunt tegenkomen, hoe de duikomstandigheden zijn en met welk opleidingscentrum je daar komt.</p><button>Vind jouw volgende Avontuur</button></div></a><a href="https://www.divessi.com/nl/join-ssi/jobs-worldwide/jobs" class="navigation-promo-item" data-navigation-url-context="www"><img loading="lazy" src="https://my.divessi.com/dropbox-2/SSI_Corp_Graphics/websiteFiles/7_icons/locator-pins/pro.png" alt="Ben je klaar om je aan te sluiten bij de volgende generatie hooggekwalificeerde SSI Professionals?" /><div><h3>Ben je klaar om je aan te sluiten bij de volgende generatie hooggekwalificeerde SSI Professionals?</h3><p>Bekijk nieuwe carrièremogelijkheden en vind je plek in het wereldwijde netwerk van SSI via de banendatabase - we groeien voortdurend en hebben genoeg carrièremogelijkheden voor je!</p><button>Wereldwijde carrière mogelijkheden </button></div></a></div></div></div><div class="navigation-panel" data-main-nav-type="panel" data-main-nav-id="4"><div class="navigation-panel-inner navigation-panel-layout-right"><div class="navigation-panel-column"><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/continents" ><h2>Continenten</h2></a><ul><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/africa-100" >Afrika</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/asia-200" >Azië</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/australia-500" >Australië</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/occitanie-300" >Europa</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/north-america-400" >Noord-Amerika</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/oceania-700" >Oceania</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/south-america-600" >Zuid-Amerika</a></li></ul></div><div class="navigation-panel-column"><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/oceans" ><h2>Oceanen</h2></a><ul><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/atlanticocean-9751600" >Atlantische Oceaan</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/caribbean-9751532" >Caribische zee</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/indian-ocean-9751701" >Indische Oceaan</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/mediterranean-sea-9751578" >Middellandse Zee</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/pacificocean-9751831" >Pacific</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/destination/red-sea-9751568" >Rode Zee</a></li></ul></div><div class="navigation-panel-column"><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marinelife" ><h2>Wildlife</h2></a><ul><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/sharks" >Haaien</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/rays" >Roggen</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/whales" >Walvissen</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/dolphins" >Dolfijnen</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/turtles" >Schildpadden</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/seahorses" >Zeepaardjes en Zeenaald</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/crustaceans" >Schaaldieren</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/mydiveguide/marine-life-detail/molluscs" >Weekdieren</a></li></ul></div><div class="navigation-promo-area "><a href="https://www.divessi.com/nl/mydiveguide" class="navigation-promo-item" data-navigation-url-context="www"><img loading="lazy" src="https://cdn.divessi.com/cached/websiteFiles/8_mydiveguide/Banner_600x600_My_Dive_Guide_Bahamas_iStock-RomoloTavani.jpeg/400.jpeg" alt="MyDiveGuide - Een slimme online duik reisgids, gemaakt door duikers voor duikers!" /><div><h3>MyDiveGuide - Een slimme online duik reisgids, gemaakt door duikers voor duikers!</h3><p>We hebben een unieke en uitgebreide database gecreëerd, die Dive Sites en hun potentiële Wildlife Encounters verbindt met SSI Training Centers wereldwijd. Bekijk het en plan uw volgende duikavontuur virtueel!</p><button>Lees meer</button></div></a></div></div></div><div class="navigation-panel" data-main-nav-type="panel" data-main-nav-id="5"><div class="navigation-panel-inner navigation-panel-layout-right"><div class="navigation-panel-column"><h2>Registreer Gratis</h2><ul><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/join-ssi/register-free/free-online-training" >Gratis online training</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/join-ssi/register-free/myssi-app" >MySSI App</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/join-ssi/register-free/consumer-protection" >Consumentenbescherming</a></li><li><a data-navigation-url-context="www" href="https://my.divessi.com/dv" target="_blank">Brevet zoeken</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/join-ssi/highlights/contact" >Wereldwijde Service Center Contacten</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/get-certified/environment/blue-oceans" >Bescherm de Zee</a></li></ul></div><div class="navigation-panel-column"><h2>Lidmaatschap</h2><ul><li><a data-navigation-url-context="www" href="https://my.divessi.com/become_trainingcenter" target="_blank">Word een SSI Center</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/become_professional" >SSI Professional worden</a></li><li><a data-navigation-url-context="www" href="https://my.divessi.com/become_mydiveguidepartner" target="_blank">Word een MyDiveGuide-partner</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/join-ssi/recognition/diver-recognition" >Erkenning Duiker</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/join-ssi/recognition/professional-recognition" >Professionele Erkenning</a></li><li><a data-navigation-url-context="www" href="https://www.divessi.com/nl/certification-card-replacement" >Vervanging Brevetkaart</a></li></ul></div><div class="navigation-panel-column"><a data-navigation-url-context="blog" href="https://www.divessi.com/blog" target="_blank"><h2>Blog & Nieuws</h2></a><ul><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/travel" target="_blank">Reizen</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/environment" target="_blank">Milieu</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/scuba_diving" target="_blank">Duiken</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/freediving" target="_blank">Freediving</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/technical_diving" target="_blank">Technical Diving</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/mermaid" target="_blank">Mermaid</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/swim_and_lifeguard" target="_blank">Swim & Lifeguard</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/family" target="_blank">Familie</a></li><li><a data-navigation-url-context="blog" href="https://www.divessi.com/blog/ssi_news" target="_blank">SSI Nieuws</a></li></ul></div><div class="navigation-promo-area "><a href="https://www.divessi.com/nl/become_professional" class="navigation-promo-item" data-navigation-url-context="www"><img loading="lazy" src="https://cdn.divessi.com/cached/websiteFiles/6_landingpages/jobs/dive_professional_crossover_768x320_myssi_mobile.jpg/400.jpg" alt="Word een SSI Professional en word nu lid van ons wereldwijde netwerk!" /><div><h3>Word een SSI Professional en word nu lid van ons wereldwijde netwerk!</h3><p>Er wachten veel duikprofessionals op je. 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Digitale brevetkaarten, lesmateriaal, logboek en nog veel meer. 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Deze ongewervelde dieren vormen een ongelooflijk diverse groep wezens. Kenmerkend voor hun harde exoskelet zijn sommige weekdieren met een duidelijke schelpbedekking zoals slakken, kokkels, oesters en sint-jakobsschelpen. Andere zijn dat niet, omdat ze geen zichtbare schelp hebben, zoals de octopus, inktvis en zeeslak. Hoewel weekdieren 23% van alle mariene organismen uitmaken, hebben veel van hen zich aangepast aan het leven in zoet water en op het land. Ze komen voor in bijna elk waterlichaam op aarde, zowel zoet als zout, en variëren in grootte van 's werelds kleinste slak in Borneo tot de reuzeninktvis in de diepste delen van de oceaan. </p><p class="tag-element" style=""> Het maakt niet uit waar je naartoe gaat, zout of zoet, je zult op de een of andere manier met weekdieren duiken. Enkele van de populairdere molluskduiken zijn de kleurrijke reuzenmosselen van Australië, de naaktslakkenhoofdstad van de wereld op de Filippijnen en de reuzenoctopus in het noordwesten van de Stille Oceaan. Duiken met weekdieren is altijd een leuke ontmoeting. Klik op de kaart hieronder om alle verschillende plaatsen op aarde te ontdekken waar je met weekdieren kunt duiken. </p></div><div class="col desktop-col-start-5 desktop-col-end-13 mobile-col-start-1 mobile-col-end-13" style=""> <div class="tag-element cardshelf"><div class="card-shelf-wrapper"><div class="cardshelf-inner"><a class="cardshelf-item" href="/nl/mydiveguide/marine-life-detail/molluscs/octopus"><div class="base-content"><div class="card-shelf-image"><img src="https://cdn.divessi.com/cached/Wildlife_Octopus_Alamy-Reinhard-Dirscherl.jpg/400.jpg" alt="" loading="lazy" /><div class="image-copyright">© Alamy/Reinhard Dirscherl</div></div><h3>Octopus</h3></div><div class="overlay-content"><p>Ga duiken met octopussen en je zult uit de eerste hand zien hoe interessant en ongelooflijk deze dieren zijn.</p></div><div class="cardshelf-more">Learn more <i class="las la-angle-right"></i></div><div class="cardshelf-item-background"></div></a><a class="cardshelf-item" href="/nl/mydiveguide/marine-life-detail/molluscs/squid"><div class="base-content"><div class="card-shelf-image"><img src="https://cdn.divessi.com/cached/Wildlife_Squid_Shutterstock_DiveIvanov.jpg/400.jpg" alt="" loading="lazy" /><div class="image-copyright">© Shutterstock_DiveIvanov</div></div><h3>Inktvis</h3></div><div class="overlay-content"><p>Inktvissen zijn intelligente dieren die wereldwijd in alle oceanen gedijen, ook in de ijskoude poolstreken.</p></div><div class="cardshelf-more">Learn more <i class="las la-angle-right"></i></div><div class="cardshelf-item-background"></div></a><a class="cardshelf-item" href="/nl/mydiveguide/marine-life-detail/molluscs/cuttlefish"><div class="base-content"><div class="card-shelf-image"><img src="https://cdn.divessi.com/cached/Wildlife_Cuttlefish_SSI-Peter-Schinck.jpg/400.jpg" alt="" loading="lazy" /><div class="image-copyright">© SSI-Peter-Schinck</div></div><h3>Zeekatten</h3></div><div class="overlay-content"><p>Er zijn ongeveer 100 soorten inktvissen die in grootte variëren van 2,5 tot 90 cm (1 tot 35 inches).</p></div><div class="cardshelf-more">Learn more <i class="las la-angle-right"></i></div><div class="cardshelf-item-background"></div></a><a class="cardshelf-item" href="/nl/mydiveguide/marine-life-detail/molluscs/nudibranch"><div class="base-content"><div class="card-shelf-image"><img src="https://cdn.divessi.com/cached/Wildlife_Nudy01_SSI-Peter-Schinck.jpg/400.jpg" alt="" loading="lazy" /><div class="image-copyright">© SSI-Peter-Schinck</div></div><h3>Naaktslak</h3></div><div class="overlay-content"><p>Naaktslakken komen voor in oceaanwateren over de hele wereld, van de Zuidelijke Oceaan tot de Noordelijke IJszee en overal daartussenin.</p></div><div class="cardshelf-more">Learn more <i class="las la-angle-right"></i></div><div class="cardshelf-item-background"></div></a></div></div></div></div></div></section></article></main> <footer> <nav> <section class="promo-links"> <a 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