CHEMICAL INDUCTION OF SETTLEMENT IN LARVAE OF THE EASTERN OYSTER <italic>CRASSOSTREA VIRGINICA </italic> (GMELIN)

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dc.contributor.advisorMeritt, Donald W.en_US
dc.contributor.authorGrant, Melissaen_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2010-02-19T07:11:35Z
dc.date.available2010-02-19T07:11:35Z
dc.date.issued2009en_US
dc.description.abstractAlthough numerous studies have been conducted to examine the effects of neuroactive compounds on bivalve larvae, few have identified chemicals capable of inducing settlement behavior in the eastern oyster <italic>Crassostrea virginica</italic>. In this study, I treated competent <italic>C. virginica</italic> larvae with select chemicals to identify those which are capable of inducing settlement behavior at an average salinity of 9.6 (&plusmn;0.1). The compounds &gamma;-aminobutyric acid and acetylcholine chloride, both at 10<super>-4</super>M, did not significantly increase the percentage of larvae exhibiting settlement behavior. As compared with the control, a significant increase in settlement behavior was induced by treatment with 3-isobutyl-1-methylxanthine, 5-hydroxytryptamine, and L-3, 4-dihydroxyphenylalanine all at 10<super>-4</super>M, as well as ammonia as a solution of 7.9mM NH<sub>4</sub>Cl (pH=8.0). These findings differ somewhat from the results of similar studies involving other species in the <italic>Crassostrea</italic> genus and may be of value to hatchery personnel or researchers interested in the chemical induction of settlement behavior in the eastern oyster.en_US
dc.identifier.urihttp://hdl.handle.net/1903/10014
dc.subject.pqcontrolledAgriculture, Fisheries and Aquacultureen_US
dc.subject.pqcontrolledChemistry, Biochemistryen_US
dc.subject.pqcontrolledNeurobiologyen_US
dc.subject.pquncontrolledbivalveen_US
dc.subject.pquncontrolledchemicalen_US
dc.subject.pquncontrolledinductionen_US
dc.subject.pquncontrolledlarvaeen_US
dc.subject.pquncontrolledoystersen_US
dc.subject.pquncontrolledsettlementen_US
dc.titleCHEMICAL INDUCTION OF SETTLEMENT IN LARVAE OF THE EASTERN OYSTER <italic>CRASSOSTREA VIRGINICA </italic> (GMELIN)en_US
dc.typeThesisen_US

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