Factors Affecting Survival of Age-0 Saugeye Stizostedion vitreum X S. canadense Stocked in Ohio Reservoirs

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dc.creator Stahl, Thomas P.
dc.creator Thiede, Gary P.
dc.creator Stein, Roy A.
dc.creator Lewis, Edward M.
dc.creator Austin, Milton R.
dc.creator Culver, David A.
dc.date.accessioned 2009-07-27T11:49:58Z
dc.date.available 2009-07-27T11:49:58Z
dc.date.issued 1996
dc.identifier.citation Stahl, Thomas P.; Thiede, Gary P.; Stein, Roy A.; Lewis, Edward M.; Austin, Milton R.; Culver, David A. "Stizostedion vitreum X S. canadense Stocked in Ohio Reservoirs," North American Journal of Fisheries Management, v. 16, no. 2, 1996, pp. 378-387. en_US
dc.identifier.issn 0275-5947 (print)
dc.identifier.uri http://hdl.handle.net/1811/37941
dc.description.abstract To explain variable stocking success of juvenile saugeye Stizostedion vitreum females x S. canadense males, we quantified survival of saugeyes in response to transport conditions, predation mortality, and prey resources at stocking in four Ohio reservoirs (162-1,145 ha) in 1991. May through October survival was 0.8-11.5%. We assessed stresses associated with transportation and handling by holding fish in small enclosures 5-10 d poststocking. Enclosure mortality varied greatly (18.9-63.5%). and because enclosures inadequately mimicked the reservoir environment, transportation and handling mortality were likely overestimated. Mortality resulting from resident piscivores was calculated via population estimates and poststocking sampling. Predation on age-0 saugeyes was minimal during poststocking sampling, ranging from 0 to 28.3% of the stocked population. Saugeye survival was statistically unrelated to zooplankton or ichthyoplankton (i.e., larval gizzard shad Dorosoma cepedianum) densities, although both ichthyoplankton density at stocking and saugeye growth showed positive trends with saugeye survival. Ichthyoplankton availability likely influences growth and survival of saugeyes; therefore, saugeye stocking should coincide with peak ichthyoplankton densities. en_US
dc.description.sponsorship Funding for this project was provided by Federal Aid in Sport Fish Restoration projects F-57-R and F-68-P administered through the Ohio Division of Wildlife. en_US
dc.language.iso en_US en_US
dc.subject survival of age-0 saugeye en_US
dc.subject age-0 saugeye en_US
dc.subject Ohio reservoirs stocking success en_US
dc.title Factors Affecting Survival of Age-0 Saugeye Stizostedion vitreum X S. canadense Stocked in Ohio Reservoirs en_US
dc.type Article en_US