Brachycentrus; Larvae--Effect of temperature on
Wild-collected Brachycentrus americanus larvae were subjected to thermal shocks of 30-minute and 60-minute duration in June, September, and December of 1976. Temperatures at collection were 14.7 , 10.4 , and 1.2 C, respectively. The TL50's for both 30-minute and 60-minute shock durations ranged from 33.3 C to 34.0 C for each month, except for a 30-minute exposure in September, which had a TL 50 of 34.6 C. Larvae from a December exposure were held for 16 days to observe postexposure behavior. Feeding was reduced 50 percent among specimens exposed to temperatures 1.2 C below the 30-minute TL 50 and 3.6 C below the 60-minute TL50.
Salmela, J. A.,
Anderson, R. L.
Thermal Shock Effects on Larvae of Caddis Fly Brachycentrus americanus.
Journal of the Minnesota Academy of Science, Vol. 44 No.3, 25-27.
Retrieved from https://digitalcommons.morris.umn.edu/jmas/vol44/iss3/10