Agri-Food & Biosciences Institute, River Bush Salmon Station, Bushmills, UK.
Department of Agriculture, Environment and Rural Affairs, Belfast, UK.
J Fish Biol. 2020 Oct;97(4):1265-1267. doi: 10.1111/jfb.14477. Epub 2020 Sep 1.
A new monitoring programme on the Lough Neagh catchment has documented a high incidence of river lamprey, Lampetra fluviatilis L., predation on Atlantic salmon smolts, Salmo salar L. In total 470 smolts were examined during the 2020 emigration period with 168 fish (36%) exhibiting lamprey scars of which 57 were lightly scarred and 111 were classed as heavily scarred. Lamprey predation was not size selective on Lough Neagh S. salar smolts.
拉夫尼格湖流域的一个新监测项目记录到了大量的七鳃鳗(Lampetra fluviatilis L.)捕食洄游的大西洋鲑幼鱼(Salmo salar L.)的现象。在 2020 年的洄游期间,共检查了 470 条幼鱼,其中 168 条(36%)有七鳃鳗的伤痕,其中 57 条有轻微伤痕,111 条有严重伤痕。在拉夫尼格湖的洄游幼鲑中,七鳃鳗的捕食没有表现出对体型的选择性。