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Showing 1 to 20 of 35 for “"gizzard shad"”.
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Some aspects of trophic relations of gizzard shad, Dorosoma cepedianum
Foods, feeding, voidance, and bioenergetics of gizzard shad were investigated. Ten of the 17 most frequently occurring plankters in Smith Mountain Reservoir were utilized as food: the bulk of the diet consisted of Glenodinium, Dinobryon, and copepod nauplii. The feeding behavior of shad was …
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Over-Winter Mortality Of Gizzard Shad (Dorosoma Cepedianum) In Oneida Lake, New York
… field sampling to develop a conceptual model of gizzard shad over-winter mortality in Oneida Lake. Gizzard shad exhibited high mortality rates as water temperatures declined prior to ice formation and are highest at temperatures less than 4 degrees C. Habitat sampling demonstrated that shad …
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Trophic interactions between larval gizzard shad and resident zooplanktivores in Claytor Lake, Virginia
Anglers unlawfully introduced gizzard shad Dorosoma cepedianum into Claytor Lake, Virginia in the late 1980s, apparently with the intention of improving the sportfishery by adding an additional clupeid prey resource. This study examined the trophic interactions between larval shad and resident …
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Influence of Gizzard Shad on Fish Community Ecology in Northeastern South Dakota Glacial Lakes
… as an important sport fish themselves. Gizzard shad Dorosoma cepedianum are also an ecologically important species in many of the systems in which they occur. South Dakota is at the northwestern edge of the native range of gizzard shad and overwinter survival of shad is often limited. …
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Gizzard Shad Reproductive Biology and Predator-Prey Relations with Walleyes in Western South Dakota Reservoirs
Gizzard shad Dorosoma cepedianum were introduced into Angostura, Orman, and Shadehill reservoirs during the 1990s to potentially provide increased prey resources for walleye Sander vitreus. The objectives of this study were to assess gizzard shad reproductive biology and determine the extent to …
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Assessment of the Response of Piscivorous Sportfishes to the Establishment of Gizzard Shad in Claytor Lake, Virginia
Gizzard shad were illegally introduced to Claytor Lake in the late 1980s and soon established a thriving population. This study assessed 1) the degree to which gizzard shad were utilized by piscivores (pelagic - striped bass Morone saxatilis, hybrid striped bass M. chrysops x M. saxatilis, and …
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Compatibility and complementarity of alewife (Alosa pseudoharengus) and gizzard shad (Dorosoma cepedianum) as forage fish in Smith Mountain Lake, Virginia
The attributes of alewife and gizzard shad as coexistent forage fishes for striped bass (Morone saxatilis), walleye (Stizostedion vitreum vitreum) and largemouth bass (Micropterus salmoides) were evaluated in Smith Mountain Lake, an 8,337 ha hydroelectric impoundment in south-central Virginia. …
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Analysis of the Trophic Support Capacity of Smith Mountain Lake, Virginia, for Piscivorous Fish
… supply, of alewife (Alosa pseudoharengus) and gizzard shad (Dorosoma cepedianum) were determined using data on the biomass, growth, and mortality of each species. Mean hydroacoustic alewife biomass from 1993-1998 was 37 kg/ha and mean gizzard shad cove rotenone biomass from 1990-1997 was 112 …
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Effects of food on bald eagle distribution and abundance on the northern Chesapeake Bay: an experimental approach
… All pair-wise combinations of channel catfish, gizzard shad (Dorosoma cepedianum), menhaden and white perch (Morone americana) were offered. We also paired gizzard shad with mallards (Anas platyrhynchos) and rabbits (eastern cottontails, Sylvilagus floridanus, or domestic rabbits, Oryctolagus …
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The Contribution of Missouri River Reservoir Side-Channel and Floodplain Habitats to Mainstem Fish Populations: The Effects of Losing Connectivity Between Hipple Lake and Lake Sharpe
… (>75% accuracy). Canals were important only for Gizzard Shad (Dorosoma cepedianum), whereas a tributary was important only for White Bass (Morone chrysops). A warm-water floodplain embayment, Hipple Lake, was important for natal recruitment of Bluegill (Lepomis macrochirus), Crappies (Pomoxis …
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Productivity and Trophic Interactions in the Missouri River Impoundments
… in downstream impoundments are dominated by gizzard shad Dorosoma cepedianum, cyprinids, and age-0 recreational fishes. In the late 1990s, the decline of rainbow smelt in Lake Oahe had significant impacts on walleye production. Although the smelt population has been recovering since the early …
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The Influence of Population and Community Variables on Bluegill, Lepomis Macrochirus, Life Histories: Implications for Growth Rates, Timing-of-Maturation, and Population Size Structure
… I examined interactions between bluegill and gizzard shad (Dorosoma cepedianum) across 20 reservoirs to determine direct and indirect effects of gizzard shad on bluegill population size structure. Results from this examination indicated that the presence of gizzard shad can be associated with …
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Exploring Interactions Between Walleye and Smallmouth Bass in South Dakota Waters
… growth of walleye within Lake Sharpe. Age-0 gizzard shad Dorosoma cepedianum composed a substantial proportion of diets of both predators, regardless of location, for most of the growing season; patterns in shad growth and vulnerability likely drove observed patterns in diet overlap values. …
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Larval fish abundance and habitat associations in backwaters and main channel borders of the Kanawha River
… shiners (<i>Notropis atherinoides</i>), and gizzard shad (<i>Dorosoma cepedianum</i>) were the dominant taxa. The emerald shiner taxa could also have included some larvae of <i>Notropis</i> species which are also present in the Kanawha River but whose larvae have not been described. Overall, …
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Daily ration, feeding periodicity and prey selection of sauger (Stizostedion canadense) in the Ohio River
… at similar sites during the same period. Gizzard shad were the most abundant prey in sauger stomachs, comprising 42% of all identified prey, followed by emerald shiners (28%), freshwater drum (16%), channel catfish (12%), and mimic shiners (1%). Close correlation between abundance and size …
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Habitat Mapping and Predator-Prey Dynamics in Ohio Resevoirs
… low in the spring, before their main prey item, gizzard shad Dorosoma cepedianum, spawn, and saugeye GRP peaked, post-spawn, in August. When comparing GRP in 3-5m to 10-12m we found that the shallower depths have a bioenergetic advantage over the deeper waters. This information can be used to …
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