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dc.contributor.supervisor Gillis, Darren (Zoology) en
dc.contributor.author Speers, Jeffery Duncan
dc.date.accessioned 2007-07-12T15:35:21Z
dc.date.available 2007-07-12T15:35:21Z
dc.date.issued 2007-07-12T15:35:21Z
dc.identifier.uri http://hdl.handle.net/1993/260
dc.description.abstract Environmental factors affect fish distribution and fisher behavior. These factors are seldom included in stock assessment models, resulting in potentially inaccurate fish abundance estimates. This study determined the impact of these factors using the commercial catch rate of sauger (Sander canadensis) and walleye (Sander vitreus) in Lake Winnipeg by: (1) the use of satellite data to monitor turbidity and its impact on catch via simple linear regression and (2) the effect of environment on catch and effort using generalized linear models. No statistically significant relationship was found between catch and turbidity; a result which may be due to small sample sizes, the fish species' examined, and variable turbidity at depth. Decreased effort was correlated with harsh weather and decreased walleye catch. Increased walleye catch was correlated with low temperature and low Red River discharge. Increased sauger catch was correlated with high temperature, high cloud opacity, and average Red River discharge. en
dc.format.extent 1741550 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject fish en
dc.subject walleye en
dc.subject sauger en
dc.subject weather en
dc.subject turbidity en
dc.subject satellite en
dc.subject catch en
dc.subject effort en
dc.subject MODIS en
dc.subject river en
dc.subject generalized linear models en
dc.subject wave en
dc.title The effects of environment on catch and effort for the commercial fishery of Lake Winnipeg, Canada en
dc.type Electronic Thesis or Dissertation en
dc.type info:eu-repo/semantics/masterThesis
dc.degree.discipline Zoology en
dc.contributor.examiningcommittee Abrahams, Mark (Zoology) Kenkel, Norman (Botany) en
dc.degree.level Master of Science (M.Sc.) en
dc.description.note October 2006 en


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