Infection by the cestode parasite Schistocephalussp. and effects on diet, body condition and survival of sculpins Cottus aleuticusand Cottus cognatus
Sampling in Iliamna Lake, Alaska, U.S.A. revealed that a greater proportion of coastrange sculpins Cottus aleuticus were infected by the cestode Schistocephalus solidus than slimy sculpins Cottus cognatus (52 v . 23%), and infected C. aleuticus contained more cestodes than did C. cognatus (2·1 v . 1...
| Published in: | Journal of Fish Biology |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
2015
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/jfb.12646 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12646 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12646 |
| Summary: | Sampling in Iliamna Lake, Alaska, U.S.A. revealed that a greater proportion of coastrange sculpins Cottus aleuticus were infected by the cestode Schistocephalus solidus than slimy sculpins Cottus cognatus (52 v . 23%), and infected C. aleuticus contained more cestodes than did C. cognatus (2·1 v . 1·3 per fish). Consumption of sockeye salmon Oncorhynchus nerka eggs (the primary diet item) was lower in fishes with cestodes, and a model based on cestode prevalence and age composition estimated higher rates of infection and parasite‐associated mortality in C. aleuticus compared with C. cognatus . |
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