Diel diet composition and feeding activity of round goby in the nearshore region of Lake Ontario

James H. Johnson; James E. McKenna; Christopher C. Nack; Marc A. Chalupnicki

doi:10.1080/02705060.2008.9664248

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Diel diet composition and feeding activity of round goby in the nearshore region of Lake Ontario

James H. Johnson·James E. McKenna·Christopher C. Nack·Marc 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.

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Journal of Freshwater Ecology Article

Source-reported bounding extent: 43.51370083689698° to 43.65793702655821° latitude; -76.37695312499999° to -76.1956787109375° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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James H. Johnson, James E. McKenna, Christopher C. Nack, Marc A. Chalupnicki. 2008. Diel diet composition and feeding activity of round goby in the nearshore region of Lake Ontario. https://doi.org/10.1080/02705060.2008.9664248

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