Monitoring shallow benthic fish assemblages in the Laurentian Great Lakes using baited photoquadrats: Enhancing traditional fisheries monitoring methods
| Autor: | Patrick O'Neill, W. Lindsay Chadderton, Krista M. Robinson, Andrew Tucker, Tracy L Galarowicz, Matthew E. Herbert, Randall M. Claramunt |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Neogobius Ecology biology 010604 marine biology & hydrobiology 010501 environmental sciences Aquatic Science Minnow biology.organism_classification 01 natural sciences Freshwater ecosystem Fishery Trout Benthic zone biology.animal Round goby Environmental science Marine ecosystem Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences Salvelinus |
| Zdroj: | Journal of Great Lakes Research. 45:333-339 |
| ISSN: | 0380-1330 |
| Popis: | Photoquadrats and underwater video surveys are standard non-destructive monitoring methods in marine ecosystems and are becoming more common in freshwater systems. The high water clarity found in most of the Laurentian Great Lakes make them ideally suited for photoquadrat sampling. We compared the effectiveness of baited photoquadrats to monitor benthic fish communities of shallow, littoral habitats of northern Lake Michigan. We compared our results with baited minnow traps, a technique commonly used to monitor benthic fish communities in freshwater ecosystems. Photoquadrats baited with lake trout (Salvelinus namaycush) eggs, the most effective attractant, proved to be an efficient tool for sampling round goby (Neogobius melanostomus) relative abundance and resulted in higher round goby catches than in photoquadrats baited with a commercially available fish attractant or unbaited photoqudrats. This method allowed sites to be surveyed rapidly (requiring |
| Databáze: | OpenAIRE |
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