| Abstract: | Age- Phi northern pike Esox lucius prefer vegetated habitats that are difficult to sample with standard towed gears. Light traps can be effective for sampling larval fishes in dense vegetation, given positive phototaxis of fish. We evaluated the phototactic response of young northern pike by comparing the catches of larvae and juveniles obtained with plexiglass traps deployed with a chemical light stick versus traps deployed without a light source (controls) in a laboratory raceway and in a vegetated pond. In the laboratory tests, catches of protolarvae and mesolarvae in lighted traps were 11-35 times greater than catches in control traps. The catches of juvenile northern pike in field and laboratory experiments were 3-15 times greater in lighted traps than in control traps, even though the maximum body width of the larger juveniles was similar to the width of the entrance slots of the traps (5 mm). Larval and juvenile northern pike were photopositive; thus, light traps should effectively sample age-0 northern pike for at least 6 weeks after hatching. |
| Genre: | Article |
| ProdID: | 1003150 |
| Citation Author: | Zigler, S. J.; Dewey, M. R. |
| Citation Contributing Office: | Upper Midwest Environmental Sciences Center |
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| Citation End Page: | 653 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | North American Journal of Fisheries Management |
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| Citation Number Of Pages: | 3 |
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| Citation Phsyical Description: | pp. 651-653 |
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| Citation Publisher: | National Biological Service |
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| Citation Search Results Text: | Phototaxis of larval and juvenile northern pike; 1995; Article; Journal; North American Journal of Fisheries Management; Zigler, S. J.; Dewey, M. R. |
| Citation Start Page: | 651 |
| Citation Volume: | 15 |
| Citation Year: | 1995 |
| Type: | citation/reference |
| Text: | Phototaxis of larval and juvenile northern pike; 1995; Article; Journal; North American Journal of Fisheries Management; Zigler, S. J.; Dewey, M. R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1995 00:00 -0600 |
| Publisher: | National Biological Service |
