Sensitivity
of Juvenile Atlantic Sturgeon to Three Therapeutic Chemicals Used in
Aquaculture
K. King, P. Farrell-2002
North American Journal of Aquaculture, 64(1): 60–65
Abstract:
Static tests were performed
to determine the acute toxicities of formalin, chloramine-T, and sodium
chloride on juvenile Atlantic sturgeon Acipenser oxyrinchus
(average weight, 2.1 g) in oxygen-saturated dilution water (total hardness,
86.5 mg/L) at 17°C. The concentrations that were lethal to 50% of the test
fish over a 96-h period (the 96-h LC50 values) were 31.00 µL/L for
formalin, 7.73 mg/L for chloramine-T, and 9.735 g/L for sodium chloride.
These findings indicate that the therapeutic concentrations and exposure
times that are commonly employed in aquaculture would not be acutely toxic
to Atlantic sturgeon.
(U.S. Fish and Wildlife
Service, Northeast Fishery Center, Lamar, Pennsylvania 16848, USA)