Abstract
Abstract The ecology of young-of-the-year fishes in a small (318 ha) perturbed embayment in Severn Sound (Lake Huron) was studied for the period May to October from 1990 to 1993. Fishes were collected with a beach seine (0.3-mm mesh) and ichthyoplankton nets (0.5-mm mesh). The taxocene (17,500 specimens collected) consisted of 17 families and 31 taxa, and represented 9 ecological guilds. Most (24) taxa were found at the shore, whereas 12 taxa were collected in limnetic areas. Fish habitats were diverse and disjunctive; most fishes were associated with mixed submersed and emergent macrophytes. Relatively few fishes inhabited severely altered shoreline areas that lacked cover from predators. The assemblage may be considered as percid-centrarchid-cyprinid, with Alosa pseudoharengus sporadically co-dominant. The most common and abundant species were Lepomis gibbosus (30% of total catch) and Perca flavescens (24%).
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