Detection probabilities of electrofishing, hoop nets, and benthic trawls for fishes in two western North American rivers
Links
- More information: Publisher Index Page (via DOI)
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
Research comparing different sampling techniques helps improve the efficiency and efficacy of sampling efforts. We compared the effectiveness of three sampling techniques (small-mesh hoop nets, benthic trawls, boat-mounted electrofishing) for 30 species in the Green (WY, USA) and Kootenai (ID, USA) rivers by estimating conditional detection probabilities (probability of detecting a species given its presence at a site). Electrofishing had the highest detection probabilities (generally greater than 0.60) for most species (88%), but hoop nets also had high detectability for several taxa (e.g., adult burbot Lota lota, juvenile northern pikeminnow Ptychocheilus oregonensis). Benthic trawls had low detection probabilities (<0.05) for most taxa (84%). Gear-specific effects were present for most species indicating large differences in gear effectiveness among techniques. In addition to gear effects, habitat characteristics also influenced detectability of fishes. Most species-specific habitat relationships were idiosyncratic and reflected the ecology of the species. Overall findings of our study indicate that boat-mounted electrofishing and hoop nets are the most effective techniques for sampling fish assemblages in large, coldwater rivers.
Suggested Citation
Smith, C.D., Quist, M., and Hardy, R.S., 2015, Detection probabilities of electrofishing, hoop nets, and benthic trawls for fishes in two western North American rivers: Journal of Fish and Wildlife Management, v. 6, no. 2, p. 371-391, https://doi.org/10.3996/022015-JFWM-011.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Detection probabilities of electrofishing, hoop nets, and benthic trawls for fishes in two western North American rivers |
| Series title | Journal of Fish and Wildlife Management |
| DOI | 10.3996/022015-JFWM-011 |
| Volume | 6 |
| Issue | 2 |
| Publication Date | September 01, 2015 |
| Year Published | 2015 |
| Language | English |
| Publisher | Scientific Journals |
| Contributing office(s) | Coop Res Unit Seattle |
| Description | 21 p. |
| First page | 371 |
| Last page | 391 |
| Country | United States |
| State | Idaho, Wyoming |
| Other Geospatial | Kootenai River, Green River |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |