VTechWorks

HABITAT USE, MOVEMENTS, AND EXPLOITATION OF STRIPED BASS AND HYBRID STRIPED BASS IN CLAYTOR LAKE, VIRGINIA

Show simple item record

dc.contributor.advisor Ney, John J. en_US
dc.contributor.advisor Copeland, John R. en_US
dc.contributor.advisor McMullin, Steve L. en_US
dc.contributor.advisor Murphy, Brian R. en_US
dc.contributor.author Kilpatrick, John Matthews en_US
dc.date.accessioned 2011-08-06T16:01:24Z
dc.date.available 2011-08-06T16:01:24Z
dc.date.issued 2004-04-26 en_US
dc.identifier.other etd-05212003-112151 en_US
dc.identifier.uri http://hdl.handle.net/10919/9884
dc.description.abstract The comparative performance of striped bass Morone saxatilis (STB) and hybrid striped bass M. saxatilis x M. chrysops (HSB) was evaluated in Claytor Lake, Virginia. This study assessed: 1) habitat use versus habitat availability for STB and HSB; 2) seasonal movement patterns, movement rates, and emigration rates of STB and HSB; and 3) angler catch rates of STB and HSB in Claytor Lake. In general, STB and HSB used similar habitats throughout this study. However, HSB used warmer (2-3°C) water than STB during spring of 2001 and 2002. During the summer months, fish selected the coolest water temperature available that contained adequate (> 2.0 mg/L) dissolved oxygen. Striped bass habitat was more degraded than HSB habitat during summer stratification of both years. Both moronids exhibited similar seasonal movement patterns. Upstream spawning migrations took place in March at 9-10°C. Summer habitat was restricted to the lower 1/3 of Claytor Lake, whereas fish used the entire reservoir during other seasons. Minimum daily movement rates were similar between species and seasons (0.2-0.5 km/h). Hourly movement rates were also similar between species (0.2-0.3 km/h). One tagged fish from the reservoir was recovered below the dam, suggesting low rates of emigration. Poor tag return rates by anglers limited confidence in estimation of exploitation rates. However, based on estimated natural and handling mortality rates and tag-reporting rates, estimated annual fishing mortality was 26% for STB and 14% for HSB, lower than rates found in Virginia's Lake Gaston and Smith Mountain Lake. en_US
dc.format.medium ETD en_US
dc.publisher Virginia Tech en_US
dc.relation.haspart FinalThesisETD.pdf en_US
dc.rights The authors of the theses and dissertations are the copyright owners. Virginia Tech's Digital Library and Archives has their permission to store and provide access to these works. en_US
dc.source.uri http://scholar.lib.vt.edu/theses/available/etd-05212003-112151 en_US
dc.subject striped bass en_US
dc.subject habitat en_US
dc.subject hybrid striped bass en_US
dc.subject movement en_US
dc.subject Claytor Lake en_US
dc.subject exploitation en_US
dc.title HABITAT USE, MOVEMENTS, AND EXPLOITATION OF STRIPED BASS AND HYBRID STRIPED BASS IN CLAYTOR LAKE, VIRGINIA en_US
dc.type Thesis en_US
dc.contributor.department Fisheries and Wildlife Sciences en_US
dc.description.degree MS en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search VTechWorks


Advanced Search

Browse

My Account