Impact of introduced brown trout on native fish communities in the Pilica River catchment (Poland)

被引：13
|
作者：
Penczak, T [1 ]
机构：
[1] Univ Lodz, Dept Ecol & Vertebrate Zool, PL-90237 Lodz, Poland
来源：
ENVIRONMENTAL BIOLOGY OF FISHES | 1999年 / 54卷 / 03期
关键词：
lowland river catchment; Salmo trutta m. fario; species extinction; native fish assemblages; human impacts;
D O I：
10.1023/A:1007595628131
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
We compared post- and pre-introduction data for the upper Pilica River and its tributaries to investigate the impact of introduced non-native brown trout on native fish communities. Extirpations of species were recorded. More changes concerned differences in abundance and distribution in the investigated rivers rather than extirpations. Human stressors (pollution, regulation) obviously helped the invasion of trout. Repeated introduction to one tributary of the Pilica enabled brown trout to survive for 10 years, despite the presence of pike and the recent appearance of domestic pollution.
引用
收藏
页码：237 / 252
页数：16
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