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- Title
Effect of Spatial Variation on Zooplankton Community Assessment in Fishery Studies.
- Authors
Olson, Nathan W.; Wilson, Stephen K.; Willis, David W.
- Abstract
Many fishery researchers studying zooplankton abundance and size structure fail to implement a sampling protocol that addresses the horizontal distribution of zooplankton. Therefore, we assessed the horizontal and seasonal differences in the abundance and size structure of zooplankton in a small (43 ha) South Dakota impoundment. We collected zooplankton samples from vegetated, edge, and non-vegetated areas using a 1.5-m integrated tube sampler in May, June, and July 2001. Overall, Cyclopoida and Daphnia were more abundant in the vegetated area, but Calanoida were more abundant in the non-vegetated areas. Size differences were also found, but differences were inconsistent among months and habitat classifications. We also quantified the number of samples required to obtain a 20% coefficient of variation of the mean abundance of zooplankton species among months and habitat categories. The results of our study illustrate the importance of implementing a sampling design that accounts for the spatial variation in zooplankton.
- Publication
Fisheries, 2004, Vol 29, Issue 4, p17
- ISSN
0363-2415
- Publication type
Article
- DOI
10.1577/1548-8446(2004)29[17:EOSVOZ]2.0.CO;2