An Evaluation of a Skimmer Dredge for Collecting Freshwater Mussels
- 1 December 1989
- journal article
- research article
- Published by Taylor & Francis in Journal of Freshwater Ecology
- Vol. 5 (2) , 151-154
- https://doi.org/10.1080/02705060.1989.9665225
Abstract
A skimmer dredge was used effectively to collect freshwater mussels from sand-silt substrate in the upper Mississippi River. The dredge obtained 62.3% of the mussels in its path and provided good estimates of species richness, diversity, and relative species abundance. It caused 10% mortality of thin-shelled species but did not damage thick-shelled species. In suitable substrate the skimmer dredge is preferable to a brail for exploratory surveys.This publication has 2 references indexed in Scilit:
- Use of a Commercial Dredge to Estimate a Hardshell Clam Population by Stratified Random SamplingJournal of the Fisheries Research Board of Canada, 1972
- History and development of surf clam harvesting gear /Published by Smithsonian Institution ,1971