期刊
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
卷 59, 期 -, 页码 1-7出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bse.2015.01.004
关键词
Biological invasions; Nile tilapia; CPUE; Fisheries; Native species; Mud carp
资金
- Chinese Ministry of Agriculture, China [2130108]
- Guangdong Province Science and Technology plan, China [2013B020308003]
- Guangdong Oceanic & Fishery Administration, China
Nile tilapia (Oreochromis niloticus) is one of the most widespread invasive fish species, and this species has successfully established populations in the major rivers of Guangdong Province, China. Field surveys and manipulative experiments were conducted to assess the impacts of Nile tilapia on fisheries. We determined that the increase of Nile tilapia in these rivers not only affects the CPUE (catch-per-unit-per-effort) of the fish community and native fish species but also reduces the income of fishermen. In the manipulative experiments, we observed that the growth of native mud carp decreased in the presence of Nile tilapia. Our results suggest that the invasion of Nile tilapia negatively affected the fishery economy and native fish species, and suitable control measurements should be taken. (C) 2015 Elsevier Ltd. All rights reserved.
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