Diet and Digestion Rates of Slimy Sculpin, Cottus cognatus , in an Alaskan Arctic Lake

• Published in: Canadian Journal of Fisheries and Aquatic Sciences
• Main Authors: Hershey, Anne E., McDonald, Michael E.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1985
• Subjects: Aquatic Science; Ecology, Evolution, Behavior and Systematics; Arctic; Arctic Lake; Cottus cognatus; Slimy sculpin
• Online Access: http://dx.doi.org/10.1139/f85-065; http://www.nrcresearchpress.com/doi/pdf/10.1139/f85-065

In arctic Toolik Lake, slimy sculpin (Cottus cognatus) rely on a diet of larval chironomids (Diptera: Chironomidae). Dry weight of sculpin gut contents was not correlated with fish wet weight. This finding, combined with age and growth data, suggested that sculpin may be food limited in Toolik Lake,...