An Environmental Chamber for Monitoring “In Situ” Growth and Survival of Larval Fishes

摘要: Abstract An “in situ” experiment using an environmental chamber to monitor growth and survival of laboratory-produced winter flounder larvae (Pseudopleuronectes americanus) was completed in the Pettaquamscutt Estuary Narragansett Bay. The prototype enclosure open mesh allowing be exposed natural, varying conditions. One thousand were stocked where they remained for a 2-week period. Zooplankton prey concentrations, temperature, salinity, dissolved oxygen monitored day night both inside outside chamber. Survival rate 76.8% all survivors metamorphosed. Daily specific rates 10.7% dry weight 1.9% standard length. Sample analyses indicated physical conditions good that zooplankton densities high. There no statistically significant differences between This research considered “transitional study” linking lab...