Diel diet composition and feeding activity of round goby in the nearshore region of Lake Ontario
Journal of Freshwater Ecology
By: J. H. Johnson, J.E. McKenna Jr., C.C. Nack, and M.A. Chalupnicki
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Abstract
Expansion of the invasive round goby Apollonia melanostoma (=Neogobius melanostomus) throughout the Great Lakes drainage has created considerable concern among fisheries management agencies. These concerns have led to several studies on the biology and impact of the goby in the basin. However, little information exists on diel patterns in food consumption of the round goby. We examined the diets of 300 round gobies collected during crepuscular, diurnal, and nocturnal periods in Lake Ontario. There was little variation in the diel diet composition of the goby, as chironomid larvae were the major prey consumed during each period. Feeding intensity of the round goby was significantly (P<0.05) greater at night than during crepuscular or diurnal periods.
Suggested Citation
Johnson, J.H., McKenna, J., Nack, C., Chalupnicki, M., 2008, Diel diet composition and feeding activity of round goby in the nearshore region of Lake Ontario: Journal of Freshwater Ecology, v. 23, no. 4, p. 607-612.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Diel diet composition and feeding activity of round goby in the nearshore region of Lake Ontario |
| Series title | Journal of Freshwater Ecology |
| Volume | 23 |
| Issue | 4 |
| Year Published | 2008 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Freshwater Ecology |
| First page | 607 |
| Last page | 612 |