The Influence of Changing Water Levels and Temperatures on the Food Habits of Walleye in Lake Oahe, South Dakota

Bryan, Scott D.; Hill, Tracy D.; Lynott, Sean T.; Duffy, Walter G.

doi:10.1080/02705060.1995.9663411

Cited by 13 publications

(9 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies on walleye from natural lakes in South Dakota and Minnesota indicate that invertebrates are an important component of their diet (Johnson & Hale, 1977;Isaak et al, 1993;Slipke & Duffy, 1997). In larger systems such as Lake Oahe (South Dakota), the Great Lakes and Oneida Lake (New York), cyprinids, rainbow smelt Osmerus mordax (Mitchill), yellow perch Perca flavescens (Mitchill), and clupeids are often the dominant prey (Forney, 1974;Swenson, 1977;Knight et al, 1984;Jackson et al, 1993;Bryan et al, 1995). In the present study, invertebrate prey were common and numerically abundant in walleye diets during the summer and spring, but contributed little to the total biomass consumed.…”

Section: Discussionmentioning

confidence: 99%

“…Only fish with identifiable prey items in their stomach were used in the food habits analyses (i.e. unidentified prey taxa and walleye with empty stomachs were excluded; Isaak et al, 1993;Jackson et al, 1993;Bryan et al, 1995;Slipke & Duffy, 1997). Most unidentified prey were fishes, but these were relatively uncommon in the samples (c2% by mass in the stomachs examined).…”

Section: Walleye Samplingmentioning

confidence: 99%

See 1 more Smart Citation

Seasonal variation in condition, growth and food habits of walleye in a Great Plains reservoir and simulated effects of an altered thermal regime

Quist

Guy

Bernot

et al. 2002

Journal of Fish Biology

View full text Add to dashboard Cite

Catch rates in gillnets and relative weight (W r ) of walleye Stizostedion vitreum, in Glen Elder Reservoir, Kansas, were lowest during the summer (June-August) and highest during the autumn (September-November). Approximately 80% of their annual growth in length and mass was attained during late summer and autumn. Growth was minimal during winter (January-February) and spring (March-May). The number of walleye with empty stomachs was highest during the summer. Invertebrates (Cladocera, Chironomidae) were common in walleye stomachs during the summer and spring, but contributed little to the ingested biomass. Gizzard shad Dorosoma cepedianum dominated walleye diets (per cent by mass) throughout the year. A bioenergetics model predicted that the proportion of maximum consumption (P c ) was highest during the autumn and was probably due to spatial overlap of walleye and gizzard shad once water temperatures were <22 C. The bioenergetics model predicted that walleye would lose up to 65% of their body mass during the summer if water temperature increased by 10% (as predicted by some global warming models). Growth during the autumn, winter and spring was enhanced up to 150% by increased temperatures. The results of this study indicate that lower condition, reduced consumption and slow growth are a generalized response of walleye to extreme temperatures. Elevated temperatures may have a net positive effect on walleye growth if they can survive the high thermal stress during summer.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Walleye Samplingmentioning

confidence: 99%

Seasonal variation in condition, growth and food habits of walleye in a Great Plains reservoir and simulated effects of an altered thermal regime

Quist

Guy

Bernot

et al. 2002

Journal of Fish Biology

View full text Add to dashboard Cite

show abstract

“…In the summer, particularly at low lake levels, cold water habitat can shrink or disappear from these reservoirs because of decreased DO concentrations and increased water temperatures (Elstad 2001). In addition to physiological stress on fishes, shrinking cold water habitats can influence fish diets by changing prey distributions (Bryan et al 1995). Our results demonstrate that probability surveys are practical for assessing trophic status and habitat condition because minimal data can be collected to yield statistically valid synoptic conditions or, if repeated, trends in reservoir conditions.…”

mentioning

confidence: 87%

Trophic status of three large Missouri River reservoirs

Bolgrien

Scharold

Angradi

et al. 2009

Lake and Reservoir Management

View full text Add to dashboard Cite

“…Finally, considering the relevance of the benthic macroinvertebrates for the conservation of the food-webs (Bryan et al 1995;Fraser 1972;Gaboury and Patalas 1984), the eVects of the water-level Xuctuations on appear to be very important, and need to be quantiWed. As ecologists will be increasingly called upon to guide restoration or remediation attempts they will need to have an understanding of the relationships between hydrology and ecological processes so that the hydrology/power relationships planned by dam proponents can be assessed.…”

mentioning

confidence: 99%

The importance of water-level fluctuation for the conservation of shallow water benthic macroinvertebrates: an example in the Andean zone of Chile

et al. 2007

View full text Add to dashboard Cite

Many researchers have shown the importance of water chemistry and benthic habitat characteristics for the conservation of the freshwater macroinvertebrate biodiversity. However, few authors have examined the physical eVect of extreme water-level Xuctuations in lakes. The present study set out to determine, through a comparative study between a regulated lake (Laja Lake, LL) and an unregulated lake (Icalma Lake, IL) of the Andean zone of southern Chile, how man-made disturbances of the natural hydrological regime aVect the structure of the benthic macroinvertebrate community. The results showed LL had very low values for species richness, density and biomass in comparison with IL, and the community was composed mainly of few individuals belonging to opportunistic taxa such as Chironomidae and Naididae. We suggest that the low values in the regulated lake are potentially explained by littoral zone factors driven by the water-level Xuctuations such as: desiccation, freezing of the biota, removal of organic particles from the sediment and absence of aquatic macrophytes.

show abstract

The Influence of Changing Water Levels and Temperatures on the Food Habits of Walleye in Lake Oahe, South Dakota

Cited by 13 publications

References 16 publications

Seasonal variation in condition, growth and food habits of walleye in a Great Plains reservoir and simulated effects of an altered thermal regime

Seasonal variation in condition, growth and food habits of walleye in a Great Plains reservoir and simulated effects of an altered thermal regime

Trophic status of three large Missouri River reservoirs

The importance of water-level fluctuation for the conservation of shallow water benthic macroinvertebrates: an example in the Andean zone of Chile

Contact Info

Product

Resources

About