Changes in Pelagic Fish Community Composition, Abundance, and Biomass along a Productivity Gradient in Subtropical Lakes
Changes in Pelagic Fish Community Composition, Abundance, and Biomass along a Productivity Gradient in Subtropical Lakes
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亚热带湖泊中上层鱼类群落组成、丰度和生物量随生产力梯度的变化
DOI:
10.3390/w13060858
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发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Jeppesen Erik
中科院分区:
文献类型:
--
作者:
Yu Jinlei;Zhen Wei;Kong Lingyang;He Hu;Zhang Yongdong;Yang Xiangdong;Chen Feizhou;Zhang Min;Liu Zhengwen;Jeppesen Erik
How fish communities change with eutrophication in temperate lakes is well documented, while only a few studies are available from subtropical lakes. We investigate the fish community structure in 36 lakes located in the Yangtze River basin, covering a wide nutrient gradient. We found that fish species richness and total fish catch per unit effort (CPUE) increased significantly with chlorophyll a (Chla). Among the different feeding types, the proportion of zooplanktivores increased significantly with Chla, while the percentage of omnibenthivores showed no obvious changes; the CPUE of piscivorous Culter spp. increased with Chla, while their proportion of total catch decreased pronouncedly. Based on the index of relative importance (IRI), the most important and dominant fish species was the zooplanktivorous Sijiao (Toxabramis swinhonis), followed by the omniplanktivorous sharpbelly (Hemiculter leucisculus) and the omnibenthivorous crucian carp (Carassius carassius), a small-sized species belonging to the Cyprinidae family. The CPUE of these three species increased significantly with Chla. The focus has, so far, been directed at large fish, but as emphasized by our results, the abundant small fish species were dominant in our subtropical study lakes even in terms of biomass, and, accordingly, we recommend that more attention be paid to the population dynamics of these species in the future.
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DOI:
10.1080/03680770.1998.11901225
发表时间:
2000-04
期刊:
Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen
影响因子:
--
作者:
H. Helminen;J. Karjalainen;M. Kurkilahti;M. Rask;J. Sarvala
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影响因子:
2
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Guohua Zhang;J. Chang;Guangfu Shu
DOI:
10.18307/2011.0519
发表时间:
2011
期刊:
Journal of Lake Sciences
影响因子:
--
作者:
周德勇;叶佳林;王卫民;刘正文
通讯作者:
周德勇;叶佳林;王卫民;刘正文
影响因子:
2.4
作者:
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影响因子:
2.7
作者:
B. Moss
通讯作者:
B. Moss