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学科主题: Fisheries; Limnology; Marine & Freshwater Biology; Oceanography
题名: Transport-determined early growth and development of jack mackerel Trachurus japonicus juveniles immigrating into Sagami Bay, Japan
作者: Xie, Songguang; Watanabe, Yoshiro
通讯作者: Xie, SG, Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
关键词: early life history ; otolith microstructure ; secondary primordium
刊名: MARINE AND FRESHWATER RESEARCH
发表日期: 2007
DOI: 10.1071/MF06165
卷: 58, 期:11, 页:1048-1055
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; Univ Tokyo, Ocean Res Inst, Tokyo 1648639, Japan
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]: Fisheries ; Limnology ; Marine & Freshwater Biology ; Oceanography
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology ; Oceanography
摘要: Oceanographic conditions and transport processes are often critical factors that affect the early growth, survival and recruitment of marine fishes. Sagittal otoliths were analysed to determine age and early growth for 381 jack mackerel (Trachurus japonicus) juveniles from Sagami Bay on the Pacific coast of Japan. Two separate hatching periods ( December and February-March) were identified. They originated from the spawning grounds in the East China Sea. Early growth and developmental rates of December-hatching fish were lower than those for February-March-hatching fish. It is likely that these differences were determined in the Kuroshio Current during transport from the spawning grounds to Sagami Bay, and the lower December water temperatures in the bay. Origin and hatch dates of juveniles in Sagami Bay were in contrast to previous research on Fukawa Bay, where April-or-later-hatching fish from spawning grounds in the coastal waters of southern Japan constituted about half of the juvenile population. Management of these two jack mackerel stocks needs to consider these differences in hatch date composition and spawning origins, as these differences could affect early growth and subsequent mortality.
英文摘要: Oceanographic conditions and transport processes are often critical factors that affect the early growth, survival and recruitment of marine fishes. Sagittal otoliths were analysed to determine age and early growth for 381 jack mackerel (Trachurus japonicus) juveniles from Sagami Bay on the Pacific coast of Japan. Two separate hatching periods ( December and February-March) were identified. They originated from the spawning grounds in the East China Sea. Early growth and developmental rates of December-hatching fish were lower than those for February-March-hatching fish. It is likely that these differences were determined in the Kuroshio Current during transport from the spawning grounds to Sagami Bay, and the lower December water temperatures in the bay. Origin and hatch dates of juveniles in Sagami Bay were in contrast to previous research on Fukawa Bay, where April-or-later-hatching fish from spawning grounds in the coastal waters of southern Japan constituted about half of the juvenile population. Management of these two jack mackerel stocks needs to consider these differences in hatch date composition and spawning origins, as these differences could affect early growth and subsequent mortality.
关键词[WOS]: EARLY-LIFE-HISTORY ; OYASHIO TRANSITIONAL WATERS ; POMATOMUS-SALTATRIX PISCES ; OTOLITH MICROSTRUCTURE ; LARVAL ; RECRUITMENT ; SURVIVAL ; MORTALITY ; ANCHOVY ; VARIABILITY
语种: 英语
WOS记录号: WOS:000251311100008
ISSN号: 1323-1650
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8346
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Tokyo, Ocean Res Inst, Tokyo 1648639, Japan

Recommended Citation:
Xie, Songguang; Watanabe, Yoshiro.Transport-determined early growth and development of jack mackerel Trachurus japonicus juveniles immigrating into Sagami Bay, Japan,MARINE AND FRESHWATER RESEARCH,2007,58(11):1048-1055
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