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Molecular and Morphological Identification and Seasonal Distribution of Eggs of Four Decapterus Fish Species in the Northern South China Sea: A Key to Conservation of Spawning Ground

文献类型：期刊论文

作者Hou, Gang2; Wang, Jinrun2; Chen, Zuozhi1,3; Zhou, Jinlong2; Huang, Wangsu2; Zhang, Hui4,5,6
刊名FRONTIERS IN MARINE SCIENCE
出版日期2020-11-12
卷号7页码:10
关键词fish eggs DNA barcode morphology Decapterus spawning ground northern South China Sea
DOI10.3389/fmars.2020.590564
通讯作者Chen, Zuozhi(chenzuozhi@scsfri.ac.cn) ; Zhang, Hui(zhanghui@qdio.ac.cn)
英文摘要Although species of Decapterus form important pelagic fisheries in the northern South China Sea, information on their spawning grounds is limited because identification of fish eggs based on their morphology is difficult. We identify eggs of four Decapterus species (D. macrosoma, D. maruadsi, D. macarellus, and D. tabl) with DNA barcodes from the fishery resources surveys in spring and autumn 2018 in Xisha islands, and spring and later summer-autumn 2019 along the continental shelf of the northern South China Sea, and describe egg morphology. Of 1405 fish eggs with obtained cytochrome c oxidase subunit I (COI) sequences, 81 were successfully attributed to four Decapterus species; eggs of each are spherical, have a smooth chorion and narrow perivitelline space, and can be partly differentiated by diameter, melanophore drops on the oil globule, and the notum of the embryo. Seasonal distributions of eggs reveal spawning grounds, with that of D. maruadsi located mainly off the Pearl River estuary in spring; eggs of D. maruadsi rarely co-occur with those of D. macrosoma. Spawning grounds of D. macrosoma are probably further south, where water temperature and salinity are higher. Spawning periods of these four Decapterus species overlap slightly. Spawning habitat of D. maruadsi has been lost, and the spawning season of D. macrosoma has extended. Identification of Decapterus eggs using DNA barcodes can assist with the identification of eggs using traditional morphological approaches. Spatial and temporal information on the distributions of Decapterus eggs can be used for improved conservation of spawning grounds and fisheries management in the northern South China Sea.
资助项目Natural Science Foundation of China[31702347] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Special Fund for Economic Development of Marine Economy of Guangdong Province[GDME2018E004] ; start-up project of Guangdong Ocean University[R19006] ; Youth Innovation Promotion Association CAS
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:000591992800001
出版者FRONTIERS MEDIA SA
源URL[http://ir.qdio.ac.cn/handle/337002/169219]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Chen, Zuozhi; Zhang, Hui
作者单位1.Minist Agr & Rural Affairs, Key Lab Open Sea Fishery Dev, Guangzhou, Peoples R China
2.Guangdong Ocean Univ, Coll Fisheries, Zhanjiang, Peoples R China
3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China
6.Chinese Acad Sci, Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Hou, Gang,Wang, Jinrun,Chen, Zuozhi,et al. Molecular and Morphological Identification and Seasonal Distribution of Eggs of Four Decapterus Fish Species in the Northern South China Sea: A Key to Conservation of Spawning Ground[J]. FRONTIERS IN MARINE SCIENCE,2020,7:10.
APA Hou, Gang,Wang, Jinrun,Chen, Zuozhi,Zhou, Jinlong,Huang, Wangsu,&Zhang, Hui.(2020).Molecular and Morphological Identification and Seasonal Distribution of Eggs of Four Decapterus Fish Species in the Northern South China Sea: A Key to Conservation of Spawning Ground.FRONTIERS IN MARINE SCIENCE,7,10.
MLA Hou, Gang,et al."Molecular and Morphological Identification and Seasonal Distribution of Eggs of Four Decapterus Fish Species in the Northern South China Sea: A Key to Conservation of Spawning Ground".FRONTIERS IN MARINE SCIENCE 7(2020):10.

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来源：海洋研究所

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