Feeding ecology of Acrossocheilus yunnanensis (Regan, 1904), a dominant fish in the headwaters of the Chishui River, a tributary of the Yangtze River
文献类型：期刊论文
| 作者 | Zhang, F.1,2,3; Liu, F.3; Gao, X.3; Liu, H.3; Zhang, X.5; Wang, X.4; Cao, W.3 |
| 刊名 | IRANIAN JOURNAL OF FISHERIES SCIENCES
 |
| 出版日期 | 2020 |
| 卷号 | 19期号:5页码:2688-2704 |
| 关键词 | Dietary Ontogenetic shifts Seasonal variations Natural reserve Conservation |
| ISSN号 | 1562-2916 |
| DOI | 10.22092/ijfs.2020.122630 |
| 通讯作者 | Gao, X.(gaoxin@ihb.ac.cn) ; Cao, W.(wxcao@ihb.ac.cn) |
| 英文摘要 | Feeding ecology of Acrossocheilus yunnanensis, a dominant fish in the headwaters of the Chishui River, a tributary of the upper Yangtze River, was studied using the analysis of gut contents. From March 2015 to January 2016, a total of 543 individuals were collected and analyzed. The results showed that A. yunnanensis was an omnivorous fish mainly feeding on chlorophytes, diatoms, and aquatic insects. The trophic level was 2.69 +/- 0.62 (mean +/- SD), signifying A. yunnanensis as a primary or secondary predator. Dietary shifts were found among different ontogenetic stages and seasons. Specifically, young individuals fed primarily on aquatic insects and diatoms, whereas older fish fed mainly on chlorophytes. In spring, the preferred food item was aquatic insects and in other seasons, chlorophytes became the predominant prey. Diet composition showed no differences among individuals of different sex and diel periods. The feeding intensity of A. yunnanensis was not affected by diel periods, suggesting this species feeds continuously. However, its feeding intensity was significantly influenced by seasons. Pairwise comparison found that the feeding intensity was higher in spring and autumn than that in summer and winter, with minimum food intake in winter and maximum in spring. Analysis on Amundsen graph and niche breadth index indicated that A. yunnanensis might pursue an opportunistic and moderately generalized feeding strategy, which could explain why it has become the dominant fish species in our study area. |
| WOS关键词 | STANDARDIZED DIET COMPOSITIONS ; TROPHIC LEVELS ; LAKE ; HABITS ; TRACT ; ALGAE |
| 资助项目 | Ministry of Agriculture and Rural Affairs of China ; China Three Gorges Corporation[0799574] ; China Three Gorges Corporation[0799570] ; Sino BON-Inland Water Fish Diversity Observation Network ; National Natural Science Foundation of China[31901219] |
| WOS研究方向 | Fisheries |
| 语种 | 英语 |
| WOS记录号 | WOS:000577113700035 |
| 出版者 | IRANIAN FISHERIES SCIENCE RESEARCH INST-IFSRI |
| 资助机构 | Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; Ministry of Agriculture and Rural Affairs of China ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; China Three Gorges Corporation ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; Sino BON-Inland Water Fish Diversity Observation Network ; 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/342005/38961]  |
| 专题 | 水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文 |
| 通讯作者 | Gao, X.; Cao, W. |
| 作者单位 | 1.China West Normal Univ, Coll Environm Sci & Engn, Nanchong 637009, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan 430072, Peoples R China 4.China Three Gorges Projects Dev Co Ltd, Beijing 100038, Peoples R China 5.Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4, Canada |
| 推荐引用方式 GB/T 7714 | Zhang, F.,Liu, F.,Gao, X.,et al. Feeding ecology of Acrossocheilus yunnanensis (Regan, 1904), a dominant fish in the headwaters of the Chishui River, a tributary of the Yangtze River[J]. IRANIAN JOURNAL OF FISHERIES SCIENCES,2020,19(5):2688-2704. |
| APA | Zhang, F..,Liu, F..,Gao, X..,Liu, H..,Zhang, X..,...&Cao, W..(2020).Feeding ecology of Acrossocheilus yunnanensis (Regan, 1904), a dominant fish in the headwaters of the Chishui River, a tributary of the Yangtze River.IRANIAN JOURNAL OF FISHERIES SCIENCES,19(5),2688-2704. |
| MLA | Zhang, F.,et al."Feeding ecology of Acrossocheilus yunnanensis (Regan, 1904), a dominant fish in the headwaters of the Chishui River, a tributary of the Yangtze River".IRANIAN JOURNAL OF FISHERIES SCIENCES 19.5(2020):2688-2704. |
入库方式： OAI收割
来源：水生生物研究所
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