| Abstract: | The slimy sculpin (Cottus cognatus), spoonhead sculpin (Cottus ricei), and deepwater sculpin (Myoxocephalus thompsoni) are abundant fishes in Lake Superior. Slimy and spoonhead sculpins occupy a zone from near shore to depths of 210 m but are generally most abundant in waters 50 to 90 m deep. Deepwater sculpins are found in waters from 15 to 407 m deep and are most abundant at depths greater than 70 m. All three species of sculpins eat mainly burrowing amphipods (Pontoporeia affinis), although deepwater sculpins also eat substantial quantitites of opossum shrimp (Mysis relicta). The three sculpins grow at similar rates. Among the fishes aged, the maximum age of slimy sculpins was 5 years, compared with 6 years for spoonhead sculpins. and 7 years for deepwater sculpins. Indirect evicdence indicates that slimy and spoonhead sculpins spawn in the spring, and deepwater sculpins spawn in midwinter. |
| Genre: | Article |
| ProdID: | 1000543 |
| Citation Author: | Selgeby, James H. |
| Citation Contributing Office: | Great Lakes Science Center |
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| Citation End Page: | 51 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Great Lakes Research |
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| Citation Number Of Pages: | 7 |
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| Citation Phsyical Description: | p. 44-51 |
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| Citation Search Results Text: | Comparative biology of the sculpins of Lake Superior; 1988; Article; Journal; Journal of Great Lakes Research; Selgeby, James H. |
| Citation Start Page: | 44 |
| Citation Volume: | 14 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Comparative biology of the sculpins of Lake Superior; 1988; Article; Journal; Journal of Great Lakes Research; Selgeby, James H. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
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