Effects of kelthane on the estuarine shrimp Crangon tranciscorum |
| |
Authors: | J. W. Sharp R. M. Sitts A. W. Knight |
| |
Affiliation: | (1) Department of Land, Air and Water Resources, Water Science and Engineering Section, University of California, Davis, California, USA |
| |
Abstract: | The chlorinated hydrocarbon pesticide Kelthane was assayed for effects on food consumption, molting rate, cannibalism, respiration, mortality and behavior of the estuarine shrimp Crangon franciscorum Stimpson. The test system was a single-pass pulse-flow apparatus employing a modified Mount-Brungs style diluter. Treatment levels were 0, 14, 33 and 81 g l-1 Kelthane at 16.6°C and 19 S over an exposure period of 317 h. Exposure to Kelthane reduced food consumption, molting rate, cannibalism, and respiration. Behavior also was abnormal in exposed shrimp. They spent more time swimming, were less coordinated and had feeble escape reactions. Kelthane was very toxic to C. franciscorum with LT50 values of 163, 196 and 264 h for shrimp exposed to 81, 33 and 14 g l-1 respectively. The incipient lethal level of Kelthane is probably below 14 g l-1. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|