Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth
We examined growth of native slimy sculpin (Cottus cognatus), native brook trout (Salvelinus fontinalis), and nonnative brown trout (Salmo trutta) to investigate potential interactions of a native nongame fish with native and nonnative trout. Enclosures (1 m 2 ) were stocked with five treatments (ju...
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crcansciencepubl:10.1139/f06-054 2024-09-15T18:02:58+00:00 Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth Zimmerman, Julie KH Vondracek, Bruce 2006 http://dx.doi.org/10.1139/f06-054 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-054 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 63, issue 7, page 1526-1535 ISSN 0706-652X 1205-7533 journal-article 2006 crcansciencepubl https://doi.org/10.1139/f06-054 2024-08-01T04:10:00Z We examined growth of native slimy sculpin (Cottus cognatus), native brook trout (Salvelinus fontinalis), and nonnative brown trout (Salmo trutta) to investigate potential interactions of a native nongame fish with native and nonnative trout. Enclosures (1 m 2 ) were stocked with five treatments (juvenile brown trout with sculpin, juvenile brook trout with sculpin, and single species controls) at three densities. Treatments (with replication) were placed in riffles in Valley Creek, Minnesota, and growth rates were measured for six experiments. We examined the difference in growth of each species in combined species treatments compared with each species alone. We did not find evidence of inter actions between brook trout and sculpin, regardless of density or fish size. However, sculpin gained greater mass when alone than with brown trout when sculpin were >16 g. Likewise, brown trout grew more when alone than with sculpin when brown trout were >24 g. In contrast, brown trout ≤5 g grew more with sculpin compared with treatments alone. We suggest that native brook trout and sculpin coexist without evidence of competition, whereas nonnative brown trout may compete with sculpin. Article in Journal/Newspaper Cottus cognatus Slimy sculpin Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 63 7 1526 1535 |
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Open Polar |
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Canadian Science Publishing |
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English |
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We examined growth of native slimy sculpin (Cottus cognatus), native brook trout (Salvelinus fontinalis), and nonnative brown trout (Salmo trutta) to investigate potential interactions of a native nongame fish with native and nonnative trout. Enclosures (1 m 2 ) were stocked with five treatments (juvenile brown trout with sculpin, juvenile brook trout with sculpin, and single species controls) at three densities. Treatments (with replication) were placed in riffles in Valley Creek, Minnesota, and growth rates were measured for six experiments. We examined the difference in growth of each species in combined species treatments compared with each species alone. We did not find evidence of inter actions between brook trout and sculpin, regardless of density or fish size. However, sculpin gained greater mass when alone than with brown trout when sculpin were >16 g. Likewise, brown trout grew more when alone than with sculpin when brown trout were >24 g. In contrast, brown trout ≤5 g grew more with sculpin compared with treatments alone. We suggest that native brook trout and sculpin coexist without evidence of competition, whereas nonnative brown trout may compete with sculpin. |
format |
Article in Journal/Newspaper |
author |
Zimmerman, Julie KH Vondracek, Bruce |
spellingShingle |
Zimmerman, Julie KH Vondracek, Bruce Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth |
author_facet |
Zimmerman, Julie KH Vondracek, Bruce |
author_sort |
Zimmerman, Julie KH |
title |
Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth |
title_short |
Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth |
title_full |
Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth |
title_fullStr |
Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth |
title_full_unstemmed |
Interactions of slimy sculpin ( Cottus cognatus) with native and nonnative trout: consequences for growth |
title_sort |
interactions of slimy sculpin ( cottus cognatus) with native and nonnative trout: consequences for growth |
publisher |
Canadian Science Publishing |
publishDate |
2006 |
url |
http://dx.doi.org/10.1139/f06-054 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-054 |
genre |
Cottus cognatus Slimy sculpin |
genre_facet |
Cottus cognatus Slimy sculpin |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 63, issue 7, page 1526-1535 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f06-054 |
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Canadian Journal of Fisheries and Aquatic Sciences |
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63 |
container_issue |
7 |
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1526 |
op_container_end_page |
1535 |
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1810440499621789696 |