Development of Dominant Year Classes in a Yellow Perch Population

摘要: Abstract Abundance of young-of-the-year yellow perch in Oneida Lake, New York was estimated 1959 through 1968 by shore seining July and trawling late summer. Seine trawl catches were high 1960, 1962, 1964, age I+ subsequent years confirmed that these dominant year classes. Variation numerical size classes less the first than second which indicated a divergence class abundance. Estimates mortality based on catch trawls from August to October weak generally experienced higher strong classes, thus depensatory. Changes bio-mass estimates consumed walleye population consistent with assumption depensatory caused predation.