Physiological responses of Acartia and Eurytemora spp. to changes in the nitrogen:phosphorus quality of their food

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dc.contributor.advisorGlibert, Patriciaen_US
dc.contributor.authorBentley, Katherine Marieen_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.accessioned2015-02-07T06:36:38Z
dc.date.available2015-02-07T06:36:38Z
dc.date.issued2014en_US
dc.description.abstractThis study addressed how copepods respond to varying nutrient content in their prey. Copepod physiological responses were measured along a gradient of prey nitrogen:phosphorus (N:P) ratios created by altering the P content in diatom prey grown at a constant rate. Acartia tonsa, a broadcast spawner, and Eurytemora carolleeae, a brood spawner, increased excretion of P as prey N:P declined (i.e. P increased). E. carolleeae had higher somatic tissue nutrient content, while A. tonsa had higher egg nutrient content overall and higher P in eggs as N:P decreased. E. carolleeae egg production was greatest when eating high N:P prey while A. tonsa showed the opposite. Egg viability declined at high N:P for both copepods, yet A. tonsa viability was always greater than E. carolleeae viability. Both copepods responded physiologically to food of varying quality, yet regulated their homeostasis differently. Prey nutrient content may be significant in the environmental selection of different copepods.en_US
dc.identifierhttps://doi.org/10.13016/M2DP55
dc.identifier.urihttp://hdl.handle.net/1903/16289
dc.language.isoenen_US
dc.subject.pqcontrolledBiological oceanographyen_US
dc.subject.pqcontrolledEcologyen_US
dc.subject.pqcontrolledEnvironmental scienceen_US
dc.subject.pquncontrolledAcartia tonsaen_US
dc.subject.pquncontrolledEurytemora carolleeaeen_US
dc.subject.pquncontrolledfecundityen_US
dc.subject.pquncontrolledfood qualityen_US
dc.subject.pquncontrollednitrogenen_US
dc.subject.pquncontrolledphosphorusen_US
dc.titlePhysiological responses of Acartia and Eurytemora spp. to changes in the nitrogen:phosphorus quality of their fooden_US
dc.typeThesisen_US

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