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Co-occurring bighead and silver carps show similar food preference but different isotopic niche overlap in different lakes
Jayasinghe, U. Asanka D.1,2,3; Garcia-Berthou, Emili4; Li, Zhongjie1; Li, Wei1; Zhang, Tanglin1; Liu, Jiashou1; Liu, JS (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 South Donghu Rd, Wuhan 430072, Peoples R China.
2015-04-01
Source PublicationENVIRONMENTAL BIOLOGY OF FISHES
ISSN0378-1909
Volume98Issue:4Pages:1185-1199
AbstractSilver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis) are among the most important fish species in aquaculture and have been introduced to many countries. The feeding ecology of these filter-feeding cyprinids is not well understood and has been mostly based on gut content analyses. We analyzed delta C-13 and delta N-15 stable isotope ratios of food resources and fish muscle tissues in four Chinese lakes, where these two species co-occur. Data analysis through Bayesian mixing models revealed that both fish species had similar diets within lakes, and where dietary shifts occurred, both species displayed dietary shifts simultaneously. Diet was generally based on plankton, however, detritus was the main food in eutrophic lake subjected to urban pollution, likely due to resource availability. Niche overlap and width were also variable but in general clear size-based resource partitioning was observed, with bighead carp preying more on zooplankton and occupying a higher trophic position and silver carp feeding more on phytoplankton. Food particles smaller than 64 mu m, had little importance in their diets.
SubtypeArticle
KeywordSub-tropical Lakes Chinese Carps Filter-feeding Fish Delta C-13 And Delta N-15 Layman Metrics
Department[Jayasinghe, U. Asanka D. ; Li, Zhongjie ; Li, Wei ; Zhang, Tanglin ; Liu, Jiashou] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Jayasinghe, U. Asanka D.] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Jayasinghe, U. Asanka D.] Univ Ruhuna, Dept Limnol, Matara 81000, Sri Lanka ; [Garcia-Berthou, Emili] Univ Girona, Inst Aquat Ecol, E-17071 Girona, Catalonia, Spain
DOI10.1007/s10641-014-0351-7
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Marine & Freshwater Biology
WOS IDWOS:000350567300020
WOS KeywordHYPOPHTHALMICHTHYS-MOLITRIX VAL ; STABLE-ISOTOPE ; PLANKTIVOROUS FISHES ; MEILIANG BAY ; GUT CONTENTS ; ARISTICHTHYS-NOBILIS ; PLANKTON COMMUNITY ; AQUACULTURE PONDS ; TROPHIC POSITION ; ILLINOIS RIVER
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/23868
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorLiu, JS (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 South Donghu Rd, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Ruhuna, Dept Limnol, Matara 81000, Sri Lanka
4.Univ Girona, Inst Aquat Ecol, E-17071 Girona, Catalonia, Spain
Recommended Citation
GB/T 7714
Jayasinghe, U. Asanka D.,Garcia-Berthou, Emili,Li, Zhongjie,et al. Co-occurring bighead and silver carps show similar food preference but different isotopic niche overlap in different lakes[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2015,98(4):1185-1199.
APA Jayasinghe, U. Asanka D..,Garcia-Berthou, Emili.,Li, Zhongjie.,Li, Wei.,Zhang, Tanglin.,...&Liu, JS .(2015).Co-occurring bighead and silver carps show similar food preference but different isotopic niche overlap in different lakes.ENVIRONMENTAL BIOLOGY OF FISHES,98(4),1185-1199.
MLA Jayasinghe, U. Asanka D.,et al."Co-occurring bighead and silver carps show similar food preference but different isotopic niche overlap in different lakes".ENVIRONMENTAL BIOLOGY OF FISHES 98.4(2015):1185-1199.
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