Population Densities of Juvenile Trout (Salmo trutta) in Five Upland Streams and Their Effects Upon Growth, Survival and Dispersal
Population Densities of Juvenile Trout (Salmo trutta) in Five Upland Streams and Their Effects Upon Growth, Survival and Dispersal
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五条高地溪流中鳟鱼幼鱼（Salmo trutta）的种群密度及其对生长、生存和扩散的影响
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
D. Crisp
中科院分区：
文献类型：
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作者：
D. Crisp
研究了北奔宁河中鳟鱼（特别是0组）的生存、生长和下游扩散及其与初始放养密度的关系。采用了两种方法。首先，在大约20年的时间里，在四条河流中每条河流的一个标记河段进行电钓普查。其次，在10年的时间里，下游移动的鳟鱼被困在两条溪流中。诱捕器上游的每条溪流都试验性地放置了“游上来”的鳟鱼鱼苗，每年使用不同的种群密度
Survival, growth and downstream dispersal of trout (especially 0 group) and the relationships of these variables to initial stocking density were studied in north Pennine streams. Two methods were used. First, electrofishing censuses were made in a marked reach of each of four streams over a period of about 20 years. Second, downstream moving trout were trapped in two streams over a 10-year period. Each stream upstream of the trap was experimentally stocked with «swim-up» trout fry, using a different population density each year