Growth and Survival of Larval Walleyes in Response to Prey Availability

摘要: Abstract Although larval fish can be highly susceptible to changes in prey availability, the effects on growth and survival are difficult examine field. In addition, previous studies often have examined these relationships only with zooplankton communities common northern oligotrophic lakes. We used mesocosm pond experiments better understand relationship between of walleye Sander vitreus (formerly Stizostedion vitreum) eutrophic midwestern USA reservoirs. Treatments low, medium, high crustacean density (1–50 individuals/L) were created mesocosms by filtering water. ponds adding copper sulfate create low-density liquid fertilizer high-density ponds. Walleye rate (0.7–1.5 mm/d) increased both Densities necessary maintain good higher than previously ...