搜索结果: 1-1 共查到“湖沼学 Fish populations”相关记录1条 . 查询时间(0.109 秒)
In Plynlimon streams, brown trout (Salmo trutta L.) are widespread in the upper Wye at population densities of 0.03 to 0.32 fish m-2 and show evidence of successful recruitment in most years. In the u...