UNDERSTANDING THE EFFECTS OF STOCKING DENSITY AND BIOFOULING CONTROL PRACTICES ON BIOFOULING ON OFF-BOTTOM OYSTER GROW-OUT BAGS (YORK RIVER, VA)

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dc.contributor.authorGalvan Lam, Zophia Anna
dc.contributor.departmentBiologyen_US
dc.contributor.programVirginia Institute of Marine Science REUen_US
dc.date.accessioned2023-07-17T16:27:32Z
dc.date.available2023-07-17T16:27:32Z
dc.date.issued2022-08
dc.description.abstractVirginia, the top producer of Crassostrea virginica (Eastern Oyster) in the United States, supports a fast-growing commercial shellfish aquaculture industry valued at over $30 million. Biofouling is the adhesion of aquatic communities to submerged structures that can have ecologic, biologic, and economic impacts on aquaculture operations. Colonized bags have increased weights that affect handling and blockages that can impede essential water flow, which could affect conditions within grow-out bags. Biofouling contributes to 5-10% of production costs and 20% of the direct costs of an oyster's final market price. This study aimed to (1) quantify and identify fouling communities on floating oyster bags and (2) determine the effects of biofouling control practices (air drying periodically vs not) and stocking density (high, normal, and empty) on biofouling communities growing on mesh settlement plates attached to floating oyster bags. Results indicate that colonizing organisms (Tubeworm fouling and bryozoans) were the most prominent taxa found across most settlement mesh plates. Air drying frequently effectively reduced biofouling, producing significantly lighter wet weights on both mesh plates and grow-out bags than non-air-dried treatments (p < 0.01). Stocking density somewhat reduced biofouling in non-air-dried treatments, albeit not significantly. Understanding which biofouling communities grow on oyster bags and developing mechanisms to control fouling growth can help researchers provide better data for oyster farmers so they can make more informed husbandry decisions.en_US
dc.description.sponsorshipVirginia Institute of Marine Science REUen_US
dc.format.extent1 pageen_US
dc.genrepostersen_US
dc.identifierdoi:10.13016/m2e3xi-gjjc
dc.identifier.urihttp://hdl.handle.net/11603/28708
dc.language.isoen_USen_US
dc.relation.isAvailableAtFrostburg State Universityen_US
dc.rightsThe author owns the copyright to this work. This item may be protected under Title 17 of the U.S. Copyright Law. It is made available by FSU for non-commercial research and education. For permission to publish or reproduce, please contact the author.en_US
dc.subjectCrassostrea virginicaen_US
dc.subjectEastern Oysteren_US
dc.subjectBiofoulingen_US
dc.subjectfisheriesen_US
dc.subjectAquacultureen_US
dc.titleUNDERSTANDING THE EFFECTS OF STOCKING DENSITY AND BIOFOULING CONTROL PRACTICES ON BIOFOULING ON OFF-BOTTOM OYSTER GROW-OUT BAGS (YORK RIVER, VA)en_US
dc.typeTexten_US

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