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

doi:10.3389/fmars.2020.590564

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	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
	Hou, Gang 4; Wang, Jinrun 4; Chen, Zuozhi 5,6; Zhou, Jinlong 4; Huang, Wangsu 4; Zhang, Hui 1,2,3
刊名	FRONTIERS IN MARINE SCIENCE
	2020-11-12
卷号	7 页码:10
关键词	fish eggs DNA barcode morphology Decapterus spawning ground northern South China Sea
DOI	10.3389/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
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000591992800001
内容类型	期刊论文
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.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 3.Chinese Acad Sci, Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 4.Guangdong Ocean Univ, Coll Fisheries, Zhanjiang, Peoples R China 5.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou, Peoples R China 6.Minist Agr & Rural Affairs, Key Lab Open Sea Fishery Dev, Guangzhou, 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.