Department of Biological and Environmental Sciences/Aquatic Sciences, University of Helsinki, Finland.
J Fish Biol. 2009 Mar;74(4):967-72. doi: 10.1111/j.1095-8649.2009.02181.x.
Growth of pikeperch Sander lucioperca in the eutrophic and clay-turbid Lake Sahajärvi, Southern Finland, was extremely slow in comparison with other lakes at similar latitudes. The most important food item in July was phantom midge larvae Chaoborus flavicans for all sizes of S. lucioperca (239-423 mm total length L(T)), while later, in August and September, the diet of S. lucioperca (149-407 mm L(T)) consisted of small (30-100 mm L(T)) perch Perca fluviatilis, ruffe Gymnocephalus cernuus and roach Rutilus rutilus.
与其他纬度相似的湖泊相比，芬兰南部富营养化和浑浊黏土湖中的梭鲈生长极其缓慢。7 月，所有规格的梭鲈（体长 239-423 毫米）最重要的食物是蜉蝣幼虫 Chaoborus flavicans，而 8 月和 9 月，梭鲈（体长 149-407 毫米）的食物组成则包括小型（体长 30-100 毫米）鲈鱼 Perca fluviatilis、圆鳍鱼 Gymnocephalus cernuus 和斜齿鳊 Rutilus rutilus。
