IOCAS-IR  > 海洋生态与环境科学重点实验室
Impacts of pen culture on alpha and beta diversity of fish communities in a large floodplain lake along the Yangtze River
Jiang, Zhongguan1; Wang, Chao1; Zhou, Lizhi1; Xiong, Wen2; Liu, Chunlong3,4
2019-02-01
Source PublicationFISHERIES RESEARCH
ISSN0165-7836
Volume210Pages:41-49
Corresponding AuthorJiang, Zhongguan(zhongguan6@163.com)
AbstractPen culture is a cumulative factor leading to water quality degradation, competition intensification, habitat alteration and fragmentation. Despite the unprecedented expansion of pen culture areas in Chinese lakes due to the increasing demands on fishery products, little is known about the potential impacts of pen culture on fish communities. Here, we addressed this issue by quantifying changes in alpha and beta diversity with its turnover and nestedness-resultant components between pen culture areas (PA) and non-pen culture areas (NPA) in a large floodplain lake lying on the northern shore of the Yangtze River. Fish communities were sampled seasonally from January 2016 to December 2016 in 16 representative sites (PA, 8; NPA, 8) of Lake Huayanghe using fyke nets. In comparing with fish communities in NPA, we demonstrated an overall loss of fish species and a significant reduction in alpha diversity (richness) in PA, which were probably due to habitat alteration and fragmentation triggered by pen culture. We reported a significantly lower overall beta diversity with its turnover component and a significantly higher nestedness-resultant component in PA. The homogenized and nested trend for fish communities in PA was triggered by the synthesized effects of abiotic and biotic factors. Net pens caused habitat fragmentation and blocked the offset effects by supplementary fish species in nearby habitats, thus resulting in a significantly lower turnover and higher nestedness-resultant component in PA. The introduction of the same cultured fish species and the decrease of the wild native fish species made the fish communities in PA become more homogenized and nested. Pen culture had resulted in a significant decline in alpha diversity and a designed homogenization for fish communities in the lake. Our study highlighted the urgent need for systematic assessment of cultured fish and effective control of pen culture areas to avoid the future fish homogenization and species loss in Chinese lakes.
KeywordFish assemblages Homogenization Turnover Nestedness-resultant Habitat fragmentation Fisheries
DOI10.1016/j.fishres.2018.10.007
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31600438] ; Key Foundation of Anhui Province Education Department[KJ2016A789]
WOS Research AreaFisheries
WOS SubjectFisheries
WOS IDWOS:000451934800005
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/156163
Collection海洋生态与环境科学重点实验室
Corresponding AuthorJiang, Zhongguan
Affiliation1.Anhui Univ, Sch Resources & Environm Engn, Hefei 230601, Anhui, Peoples R China
2.Guangdong Ocean Univ, Coll Fisheries, Zhanjiang 524088, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
4.Leibniz Inst Freshwater Ecol & Inland Fisheries, D-12587 Berlin, Germany
Recommended Citation
GB/T 7714
Jiang, Zhongguan,Wang, Chao,Zhou, Lizhi,et al. Impacts of pen culture on alpha and beta diversity of fish communities in a large floodplain lake along the Yangtze River[J]. FISHERIES RESEARCH,2019,210:41-49.
APA Jiang, Zhongguan,Wang, Chao,Zhou, Lizhi,Xiong, Wen,&Liu, Chunlong.(2019).Impacts of pen culture on alpha and beta diversity of fish communities in a large floodplain lake along the Yangtze River.FISHERIES RESEARCH,210,41-49.
MLA Jiang, Zhongguan,et al."Impacts of pen culture on alpha and beta diversity of fish communities in a large floodplain lake along the Yangtze River".FISHERIES RESEARCH 210(2019):41-49.
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