The growth of brown trout Salmo trutta L. in northern Scottish lochs with special reference to the improvement of fisheries
The growth of brown trout Salmo trutta L. in northern Scottish lochs with special reference to the improvement of fisheries
复制标题
苏格兰北部湖泊褐鳟 Salmo trutta L. 的生长特别参考渔业的改善
DOI：
--
复制
发表时间：
1971
期刊：
影响因子：
--
通讯作者：
R. Campbell
中科院分区：
文献类型：
--
作者：
R. Campbell
本文基于对苏格兰173个湖泊的调查，共检测了4700多条褐鳟。为了确定可能影响鳟鱼生长速度的环境因素，研究人员选择了苏格兰北部24个湖泊及其鳟鱼种群进行详细比较。这些湖泊可能代表了该地区所有主要的静水栖息地——从外赫布里底群岛的咸水湖泊到中部高地凯恩戈姆高原的亚北极环境中的湖泊。研究表明，鳟鱼的实际生长率与种群密度呈负相关。在此基础上，提出了改善褐鳟湖的建议。
This paper is based on the investigation of 173 lochs in Scotland from which a total of over 4700 brown trout were examined. Twenty-four of the lochs, all in northern Scotland, and their trout populations, were selected for detailed comparison in an attempt to identify environmental factors that might affect the growth rate of trout. The lochs probably represented the full range of main standing water habitats in the region-ranging from a saline loch in the Outer Hebrides to one in a sub-arctic environment high on the Cairngorm plateau in the Central Highlands. The study indicates that for practical purposes the growth rate of trout is negatively correlated with population density. Some suggestions for improving brown trout lochs, based on the findings of this paper, are included.