Effectiveness of seining after electrofishing to characterize stream fish communities

North American Journal of Fisheries Management
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Abstract

The richness and composition of species collected uniquely to electrofishing and subsequent seining efforts were examined at 271 stream sites across the USA by using wadeable electrofishing methods (backpack or barge electrofishing) or boat electrofishing followed by seining. Seining after wadeable electrofishing resulted in the collection of new species at 42% of sites, whereas seining after boat electrofishing resulted in the collection of new species at 87% of sites. Mean percentage of total observed fish species richness that was collected uniquely by seining was 6% (representing one new species, on average) after wadeable electrofishing compared with 18% (four new species, on average) after boat electrofishing. Shannon–Wiener diversity index values were not significantly different between data from combined sampling (electrofishing and seining) and data from wadeable electrofishing (P = 0.490) but were significantly different between boat electrofishing and combined sampling (P = 0.004). Seining efforts after boat electrofishing can provide critical information that allows for a more complete characterization of the fish community. For sampling in wadeable streams, decisions regarding the use of seines should consider the effectiveness of electrofishing at a given site and the use of seines as an alternative primary sampling gear rather than as a supplement to electrofishing.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Effectiveness of seining after electrofishing to characterize stream fish communities
Series title North American Journal of Fisheries Management
DOI 10.1080/02755947.2012.663458
Volume 32
Issue 1
Year Published 2012
Language English
Publisher American Fisheries Society
Publisher location Bethesda, MD
Contributing office(s) National Water Quality Assessment Program
Description 9 p.
First page 177
Last page 185
Country United States