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Feeding habits of the cyprinidGymnocypris firmispinatusin the Anning River, China

文献类型：期刊论文

作者Ma, Baoshan2; Xu, Bin2; Wei, Kaijin2; Zhu, Xiangyun2; Xu, Jin2; Lu, Jianchao2,3; Wang, Jun1
刊名FISHERIES SCIENCE
出版日期2020-09-01
卷号86期号:5页码:749-758
关键词Feeding habits Diet composition Macroinvertebrates Prey selection Gymnocypris firmispinatus
ISSN号0919-9268
DOI10.1007/s12562-020-01445-x
通讯作者Wei, Kaijin(weikj@yfi.ac.cn)
英文摘要The feeding habits and prey selection ofGymnocypris firmispinatusin the Anning River were investigated with respect to fish size, season and sex. Gut contents of 305 individuals ranging in size from 57 to 193 mm total length were analyzed, and 16.0% of the guts were found to be empty. The vacuity index indicated that the feeding intensity of the fish roughly followed a seasonal trend, with minimum food intake in winter. However, statistically insignificant variation in the vacuity index was observed between size classes and sexes. Overall, 46 prey taxa belonging to five orders (Ephemeroptera, Plecoptera, Trichoptera, Coleoptera and Diptera) were identified in the guts of 141 fish.G. firmispinatusfed almost exclusively on aquatic insects, of whichBaetissp. andSimuliumsp. were the predominant prey species, followed byDiamesasp. andGlossosomasp.G. firmispinatusis a generalist feeder that relies upon a wide trophic spectrum. The multivariate analysis revealed that fish size was the principal factor affecting diet. Small individuals fed primarily on small ephemeropteran larvae and dipteran larvae, whereas larger individuals preferably consumed bigger trichopteran larvae. In terms of its prey,G. firmispinatusshowed strong positive selection for dipteran larvae and trichopteran larvae, and negative selection for ephemeropteran larvae, plecopteran larvae and coleopteran larvae in all seasons. This study provides evidence that the observed diet ofG. firmispinatuscan be explained by prey selection rather than random feeding.
WOS关键词ONTOGENIC DIETARY SHIFTS ; YARLUNG ZANGBO RIVER ; GYMNOCYPRIS-FIRMISPINATUS ; FISH ; ECOLOGY ; SIZE ; CYPRINIDAE ; SELECTION ; GULF
资助项目Central Public-interest Scientific Institution Basal Research Fund ; Chinese Academy of Fishery Sciences[2018JBF14] ; National Natural Science Foundation of China[51809280]
WOS研究方向Fisheries
语种英语
WOS记录号WOS:000561788800001
出版者SPRINGER JAPAN KK
资助机构Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Central Public-interest Scientific Institution Basal Research Fund ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; Chinese Academy of Fishery Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.ihb.ac.cn/handle/342005/38741]  
专题水生生物研究所_其他_期刊论文
通讯作者Wei, Kaijin
作者单位1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China
3.Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Baoshan,Xu, Bin,Wei, Kaijin,et al. Feeding habits of the cyprinidGymnocypris firmispinatusin the Anning River, China[J]. FISHERIES SCIENCE,2020,86(5):749-758.
APA Ma, Baoshan.,Xu, Bin.,Wei, Kaijin.,Zhu, Xiangyun.,Xu, Jin.,...&Wang, Jun.(2020).Feeding habits of the cyprinidGymnocypris firmispinatusin the Anning River, China.FISHERIES SCIENCE,86(5),749-758.
MLA Ma, Baoshan,et al."Feeding habits of the cyprinidGymnocypris firmispinatusin the Anning River, China".FISHERIES SCIENCE 86.5(2020):749-758.

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来源：水生生物研究所

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