Bioenergetic responses of Chesapeake Bay white perch to nursery conditions of temperature, salinity, and dissolved oxygen

Simple item page
dc.contributor.advisorSecor, David H.en_US
dc.contributor.authorHanks, Deanna McQuarrieen_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.accessioned2009-07-02T05:31:53Z
dc.date.available2009-07-02T05:31:53Z
dc.date.issued2009en_US
dc.description.abstractChanges in the physical and chemical structure of estuaries affect the habitat availability for anadromous species. White perch, an estuarine species, are among the most abundant and important fishes in the Chesapeake Bay. Here, I evaluate nursery quality for juvenile white perch by measuring metabolic and growth responses over a range of environmental conditions such as salinity, temperature, and dissolved oxygen. Rearing white perch in 10-d trials varying in temperature, salinity and dissolved oxygen conditions, I estimated growth rates, feeding rates, gross growth efficiency, and routine metabolism. Juveniles experienced higher feeding and growth rates in warmer, more oxygenated waters. In hypoxic environments (<40% saturation), metabolic rates increased as much as 4-fold while growth decreased 3-fold and feeding decreased 2-fold. My results indicate that while white perch are well suited to the saline and thermal conditions present in the Bay, nursery habitat value can be substantially curtailed by hypoxia.en_US
dc.format.extent638649 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/9105
dc.language.isoen_US
dc.subject.pqcontrolledBiology, Ecologyen_US
dc.subject.pqcontrolledBiology, Physiologyen_US
dc.subject.pquncontrolledbioenergeticsen_US
dc.subject.pquncontrolledhypoxiaen_US
dc.subject.pquncontrollednursery habitaten_US
dc.subject.pquncontrolledtemperatureen_US
dc.subject.pquncontrolledwhite perchen_US
dc.titleBioenergetic responses of Chesapeake Bay white perch to nursery conditions of temperature, salinity, and dissolved oxygenen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Hanks_umd_0117N_10184.pdf
Size:
623.68 KB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Biology Theses and Dissertations
MEES Theses and Dissertations