| Abstract: | Ruffe were introduced into Duluth Harbor, Minnesota in the early 1980s, probably by release of ballast water from sea-going freighters. Since then, it has become the most abundant species in the fish community. The sensitivity of ruffe to a number of piscicides has been demonstrated, however, the feasibility of using piscicides to control populations depends on whether ruffe cart detect piscicides and move to untreated water, We used a two-choice preference resting system to evaluate avoidance or attraction reactions of ruffe during exposures to the lampricides TFM and bayluscide and the general fish toxicants rotenone and antimycin. We used a second testing system to evaluate the potential for benthic ruffe to move vertically in the water column to avoid piscicides dissolving from experimental bottom-release formulations of bayluscide and antimycin. Near-lethal concentrations of TFM and rotenone tended to repel ruffe. Antimycin and bayluscide did not seem to repel ruffe in the avoidance chamber, but bottom-release formulations (antimycin granules-0.25% a.i. And bayluscide granules-3.2% a.i.) did cause increased swimming and surfacing activity among ruffe in column tests. We conclude that TFM and rotenone could be used to trent entire bodies of water, while bottom-release formulations of antimycin and bayluscide may have more application for treating localized concentrations of ruffe. |
| Genre: | Article |
| ProdID: | 1002891 |
| Citation Author: | Dawson, Verdel K.; Bills, Terry D.; Boogaard, Michael A. |
| Citation Contributing Office: | Upper Midwest Environmental Sciences Center |
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| Citation End Page: | 350 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Great Lakes Research |
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| Citation Number Of Pages: | 8 |
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| Citation Phsyical Description: | pp. 343-350 |
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| Citation Search Results Text: | Avoidance behavior of ruffe exposed to selected formulations of piscicides; 1998; Article; Journal; Journal of Great Lakes Research; Dawson, Verdel K.; Bills, Terry D.; Boogaard, Michael A. |
| Citation Start Page: | 343 |
| Citation Volume: | 24 |
| Citation Year: | 1998 |
| Type: | citation/reference |
| Text: | Avoidance behavior of ruffe exposed to selected formulations of piscicides; 1998; Article; Journal; Journal of Great Lakes Research; Dawson, Verdel K.; Bills, Terry D.; Boogaard, Michael A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 1998 00:00 -0600 |
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