delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors
Study of the ecology of mesopelagic fishes is central for assessing the active biological pump in the ocean, especially in the mesopelagic layers. The use of delta C-13 and fatty acid analysis can help to analysis the ecology of mesopelagic fishes. Here, we analysed the fatty acid composition of mes...
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Online Access: | http://ir.qdio.ac.cn/handle/337002/162335 https://doi.org/10.1080/02757540.2019.1651844 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/162335 2023-05-15T18:16:01+02:00 delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors Wang, Fuqiang Wu, Ying Cui, Ying Chen, Zuozhi Li, Zhongyi Zhang, Jun Zheng, Shan 2019-08-08 http://ir.qdio.ac.cn/handle/337002/162335 https://doi.org/10.1080/02757540.2019.1651844 英语 eng TAYLOR & FRANCIS LTD CHEMISTRY AND ECOLOGY http://ir.qdio.ac.cn/handle/337002/162335 doi:10.1080/02757540.2019.1651844 Mesopelagic fishes lipids delta C-13 fatty acids temperature South China Sea Biochemistry & Molecular Biology Environmental Sciences & Ecology Ecology Environmental Sciences POTENTIAL DIETARY INFLUENCE SCOTIA SEA STABLE-ISOTOPES FEEDING ECOLOGY CARBON PHYTOPLANKTON COASTAL EXTRACTION NUTRITION 期刊论文 2019 ftchinacasciocas https://doi.org/10.1080/02757540.2019.1651844 2022-06-27T05:41:04Z Study of the ecology of mesopelagic fishes is central for assessing the active biological pump in the ocean, especially in the mesopelagic layers. The use of delta C-13 and fatty acid analysis can help to analysis the ecology of mesopelagic fishes. Here, we analysed the fatty acid composition of mesopelagic fishes from the continental northern slope of the South China Sea (NSSCS) and compared with nearshore SCS fishes and mesopelagic fishes collected from the Southern Ocean. The mesopelagic fishes had unusually high lipids, which resulted in Delta delta C-13 values exceeding 1 parts per thousand, more than the enrichment factor in the food web. The mesopelagic fishes had higher C18:1n-9/C18:1n-7 and C20:1n-9/ C18:1n-7 ratios compared with other fishes in the SCS, which confirmed that plankton were their main dietary source. The mesopelagic fishes from SCS and Southern Ocean had different ratios of C20:5n-3/C22:6n-3 (EPA/DHA), suggesting geographical locations and diet sources had obvious influence on their fatty acid composition. The SCS mesopelagic fishes had higher C20:4n-6/C22:6n-3 (ARA/DHA) and C20:4n-6/C20:5n-3 (ARA/EPA) ratios than mesopelagic fishes in the Southern Ocean, indicating the influence of physical factors on fatty acid composition. Thus, future studies of the fatty acids in mesopelagic fishes should consider both dietary sources and physical environments. Report Scotia Sea Southern Ocean Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Scotia Sea Southern Ocean Chemistry and Ecology 35 9 788 804 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Mesopelagic fishes lipids delta C-13 fatty acids temperature South China Sea Biochemistry & Molecular Biology Environmental Sciences & Ecology Ecology Environmental Sciences POTENTIAL DIETARY INFLUENCE SCOTIA SEA STABLE-ISOTOPES FEEDING ECOLOGY CARBON PHYTOPLANKTON COASTAL EXTRACTION NUTRITION |
spellingShingle |
Mesopelagic fishes lipids delta C-13 fatty acids temperature South China Sea Biochemistry & Molecular Biology Environmental Sciences & Ecology Ecology Environmental Sciences POTENTIAL DIETARY INFLUENCE SCOTIA SEA STABLE-ISOTOPES FEEDING ECOLOGY CARBON PHYTOPLANKTON COASTAL EXTRACTION NUTRITION Wang, Fuqiang Wu, Ying Cui, Ying Chen, Zuozhi Li, Zhongyi Zhang, Jun Zheng, Shan delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors |
topic_facet |
Mesopelagic fishes lipids delta C-13 fatty acids temperature South China Sea Biochemistry & Molecular Biology Environmental Sciences & Ecology Ecology Environmental Sciences POTENTIAL DIETARY INFLUENCE SCOTIA SEA STABLE-ISOTOPES FEEDING ECOLOGY CARBON PHYTOPLANKTON COASTAL EXTRACTION NUTRITION |
description |
Study of the ecology of mesopelagic fishes is central for assessing the active biological pump in the ocean, especially in the mesopelagic layers. The use of delta C-13 and fatty acid analysis can help to analysis the ecology of mesopelagic fishes. Here, we analysed the fatty acid composition of mesopelagic fishes from the continental northern slope of the South China Sea (NSSCS) and compared with nearshore SCS fishes and mesopelagic fishes collected from the Southern Ocean. The mesopelagic fishes had unusually high lipids, which resulted in Delta delta C-13 values exceeding 1 parts per thousand, more than the enrichment factor in the food web. The mesopelagic fishes had higher C18:1n-9/C18:1n-7 and C20:1n-9/ C18:1n-7 ratios compared with other fishes in the SCS, which confirmed that plankton were their main dietary source. The mesopelagic fishes from SCS and Southern Ocean had different ratios of C20:5n-3/C22:6n-3 (EPA/DHA), suggesting geographical locations and diet sources had obvious influence on their fatty acid composition. The SCS mesopelagic fishes had higher C20:4n-6/C22:6n-3 (ARA/DHA) and C20:4n-6/C20:5n-3 (ARA/EPA) ratios than mesopelagic fishes in the Southern Ocean, indicating the influence of physical factors on fatty acid composition. Thus, future studies of the fatty acids in mesopelagic fishes should consider both dietary sources and physical environments. |
format |
Report |
author |
Wang, Fuqiang Wu, Ying Cui, Ying Chen, Zuozhi Li, Zhongyi Zhang, Jun Zheng, Shan |
author_facet |
Wang, Fuqiang Wu, Ying Cui, Ying Chen, Zuozhi Li, Zhongyi Zhang, Jun Zheng, Shan |
author_sort |
Wang, Fuqiang |
title |
delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors |
title_short |
delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors |
title_full |
delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors |
title_fullStr |
delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors |
title_full_unstemmed |
delta C-13 and fatty acid composition of mesopelagic fishes in the South China Sea and their influence factors |
title_sort |
delta c-13 and fatty acid composition of mesopelagic fishes in the south china sea and their influence factors |
publisher |
TAYLOR & FRANCIS LTD |
publishDate |
2019 |
url |
http://ir.qdio.ac.cn/handle/337002/162335 https://doi.org/10.1080/02757540.2019.1651844 |
geographic |
Scotia Sea Southern Ocean |
geographic_facet |
Scotia Sea Southern Ocean |
genre |
Scotia Sea Southern Ocean |
genre_facet |
Scotia Sea Southern Ocean |
op_relation |
CHEMISTRY AND ECOLOGY http://ir.qdio.ac.cn/handle/337002/162335 doi:10.1080/02757540.2019.1651844 |
op_doi |
https://doi.org/10.1080/02757540.2019.1651844 |
container_title |
Chemistry and Ecology |
container_volume |
35 |
container_issue |
9 |
container_start_page |
788 |
op_container_end_page |
804 |
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1766189428461535232 |