Long-term variations in body length and age at maturity of the small yellow croaker (Larimichthys polyactis Bleeker, 1877) in the Bohai Sea and the Yellow Sea, China
文献类型：期刊论文
| 作者 | Li, Zhonglu1,2,4; Shan, Xiujuan1,3; Jin, Xianshi1,3; Dai, Fangqun1,3 |
| 刊名 | FISHERIES RESEARCH
 |
| 出版日期 | 2011-06-01 |
| 卷号 | 110期号:1页码:67-74 |
| 关键词 | Small Yellow Croaker Larimichthys Polyactis Maturity Curves Maturation Overfishing Sea Surface Temperature |
| ISSN号 | 0165-7836 |
| DOI | 10.1016/j.fishres.2011.03.013 |
| 文献子类 | Article |
| 英文摘要 | This study focused on changes in the maturation schedules, as depicted in maturity ogives, of female small yellow croaker (Larimichthys polyactis) in the Bohai Sea and the Yellow Sea during the 1960-2010 spawning seasons. The two stocks studied were the northern Yellow Sea-Bohai Sea stock (the NYBS, n = 1283) and the southern Yellow Sea stock (the SYS, n=2024). Body length (L(50)) and age at median sexual maturity (A(50)) were estimated by an arcsin-square-root (ASR) transformative logistic model and an inverse von Bertalanffy growth function, respectively. The results show that L(50) decreased from 152.8 mm to 105.3 mm between 1960 and 2003-2005 in the NYBS and from 184.4 mm to 110.1 mm between 1960 and 2010 in the SYS. Over the same period, A(50) decreased from approximately 1.5 years in the NYBS and 2.4 years in the SYS to about 1 year in both stocks. Significant intrastock changes (P < 0.01) in length-maturation curves were found in both stocks over long time periods (>= 4 years); however, there were no significant changes (P > 0.05) over short time intervals (<4 years). Significant interstock changes (P < 0.01) were observed in length-maturation curves in corresponding sampling years. Significant positive correlations were found between the instantaneous rate of maturation (delta) and the growth potential index (omega) in the NYBS and between L(50) and asymptotic body length (L(infinity)) in the SYS. Significant negative correlations were found between L(50) and the sea surface temperature (SST) daily rise rate in the NYBS and between delta and the mean monthly SST in the SYS. These correlations suggest that declines in length and age at maturation primarily reflect changes in growth associated with overfishing and rising SST. Additionally, a fisheries-induced evolutionary response has contributed to changes in maturation schedules in both stocks. The principal pressures are the stress of continuously higher fishing intensity and an increasing proportion of yearling fish in the catches over time. (C) 2011 Published by Elsevier B.V.; This study focused on changes in the maturation schedules, as depicted in maturity ogives, of female small yellow croaker (Larimichthys polyactis) in the Bohai Sea and the Yellow Sea during the 1960-2010 spawning seasons. The two stocks studied were the northern Yellow Sea-Bohai Sea stock (the NYBS, n = 1283) and the southern Yellow Sea stock (the SYS, n=2024). Body length (L(50)) and age at median sexual maturity (A(50)) were estimated by an arcsin-square-root (ASR) transformative logistic model and an inverse von Bertalanffy growth function, respectively. The results show that L(50) decreased from 152.8 mm to 105.3 mm between 1960 and 2003-2005 in the NYBS and from 184.4 mm to 110.1 mm between 1960 and 2010 in the SYS. Over the same period, A(50) decreased from approximately 1.5 years in the NYBS and 2.4 years in the SYS to about 1 year in both stocks. Significant intrastock changes (P < 0.01) in length-maturation curves were found in both stocks over long time periods (>= 4 years); however, there were no significant changes (P > 0.05) over short time intervals (<4 years). Significant interstock changes (P < 0.01) were observed in length-maturation curves in corresponding sampling years. Significant positive correlations were found between the instantaneous rate of maturation (delta) and the growth potential index (omega) in the NYBS and between L(50) and asymptotic body length (L(infinity)) in the SYS. Significant negative correlations were found between L(50) and the sea surface temperature (SST) daily rise rate in the NYBS and between delta and the mean monthly SST in the SYS. These correlations suggest that declines in length and age at maturation primarily reflect changes in growth associated with overfishing and rising SST. Additionally, a fisheries-induced evolutionary response has contributed to changes in maturation schedules in both stocks. The principal pressures are the stress of continuously higher fishing intensity and an increasing proportion of yearling fish in the catches over time. (C) 2011 Published by Elsevier B.V. |
| 学科主题 | Fisheries |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000291838800008 |
| 公开日期 | 2012-07-03 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/11894]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | 1.CAFS, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Shandong Prov Key Lab Fishery Resources & Ecol En, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhonglu,Shan, Xiujuan,Jin, Xianshi,et al. Long-term variations in body length and age at maturity of the small yellow croaker (Larimichthys polyactis Bleeker, 1877) in the Bohai Sea and the Yellow Sea, China[J]. FISHERIES RESEARCH,2011,110(1):67-74. |
| APA | Li, Zhonglu,Shan, Xiujuan,Jin, Xianshi,&Dai, Fangqun.(2011).Long-term variations in body length and age at maturity of the small yellow croaker (Larimichthys polyactis Bleeker, 1877) in the Bohai Sea and the Yellow Sea, China.FISHERIES RESEARCH,110(1),67-74. |
| MLA | Li, Zhonglu,et al."Long-term variations in body length and age at maturity of the small yellow croaker (Larimichthys polyactis Bleeker, 1877) in the Bohai Sea and the Yellow Sea, China".FISHERIES RESEARCH 110.1(2011):67-74. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。