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| 1 | Migration and population structure characteristics of the small yellow croaker Larimichthys polyactis in the southern Yellow Sea显示文摘Monthly fishery survey data of the small yellow croaker Larimichthys polyactis in the southern Yellow Sea from2003 and 2013 were employed to evaluate the variation in the resource distribution and biological characteristics(especially body length and sex ratio) in the population on a decadal scale.The results indicated that the small yellow croaker migrated from the Shawai fishing ground to the Dasha fishing ground in spring and was mainly distributed in the central and western parts of the Dasha fishing ground in April and May.Larimichthys polyactis in the Dasha fishing ground migrated eastward to offshore wintering grounds in autumn and reached the central Dasha fishing ground in October and November.The small yellow croaker entered the western waters of the Shawai fishing ground in winter.A large number of age 0+ fish occurred in the Shawai and Jiangwai fishing grounds in October of 2003 and 2013.The body lengths of the spawning stock and wintering stock in 2013 were larger than those in 2003,and the monthly sex ratios(female to male) were significantly less than 1 in both years.The monthly distribution of this fish in the southern Yellow Sea was consistent with a previous finding that 'the stock migrated between the wintering grounds in the west of Jeju Island and the Lüsi spawning grounds' but tended to move more northward,with the spawning grounds extending outward.In the past decade,body length variation experienced a decline after an increase,rather than a steady decrease.The sex ratio in the single-stick stow net showed a tendency to increase over the decade,but was either less than or more than 1 depending on the fishing gear;therefore,further studies should be conducted to determine the sex structure. | XIONG Ying ZHONG Xiaming TANG Jianhua YANG Jian | 2016 | Acta Oceanologica Sinica2016，35，6： | 8 |
| 2 | 捕捞诱导鱼类生物学特征进化研究进展显示文摘随着捕捞强度加大,渔业生物为了应对捕捞压力、维持种族繁衍,逐渐产生适应性进化,这一过程称为捕捞诱导进化(Fishing-induced evolution,FIE),通常表现为渔业生物个体变小、性成熟提前,个体对捕捞的敏感性增强,进一步导致渔业种群结构简单、生态系统稳定性下降和渔业经济效益降低。认知捕捞诱导的渔业生物适应性进化,掌握捕捞对渔业种群的作用机制,有利于制定科学合理的渔业资源养护与管理策略。虽然FIE方面已进行了大量研究,但FIE在生理、生态及基因层面上对渔业生物的具体影响过程尚未明确,尤其是在气候变化、多物种相互作用等的动态环境中,FIE的作用方式更为复杂。作者综述了鱼类FIE的主要研究方法,总结了捕捞对大个体的选择性在鱼类生长、性成熟和行为方面的影响,并分析了这种影响对渔业种群恢复与管理产生的效应,以及今后需要解决的关键科学问题,旨在为FIE的进一步深入研究和渔业资源的科学管理提供帮助。 | 单秀娟 胡芷君 邵长伟 唐政 | 2020 | 渔业科学进展2020，41，3： | 7 |
| 3 | 基于刺网、地笼的考洲洋游泳动物群落结构和多样性分析显示文摘为准确了解考洲洋的渔业资源状况,文章基于2017年11月至2018年7月4个季节对考洲洋的刺网、地笼调查数据,对目前考洲洋的游泳生物群落结构、多样性进行了分析。调查中共捕获经济物种93种,其中鱼类11目33科61种,占总物种数的64.52%;甲壳类2目6科33种,占总物种数的35.48%。鱼类以鲈形目(45.16%)和鲱形目(7.52%)居多,且绝大部分(96.7%)为暖水种。各季节渔获量变化明显,夏季最高,其次是春、秋、冬季,但四季的大部分个体体质量都在0~8g和8~64g2个区间内。考洲洋的多样性指数值波动较大,物种丰富度(D)为0.81~3.63,Shannon-Wiener指数(H′)为0.81~2.03,均匀度指数(J′)为0.55~1.69。但方差分析结果显示,不同季节、站点间的D、H′、J′均无显著性差异。结果表明考洲洋总体资源量较低,多样性水平季节变化较大,湾内资源空间分布较为均匀。 | 应锐 蒋力 尹芳敏 黄建荣 黎祖福 王英永 冯建祥 | 2019 | 南方水产科学2019，15，4： | 6 |
| 4 | Effects of Trawl Selectivity and Genetic Parameters on Fish Body Length Under Long-Term Trawling显示文摘Long-term fishing pressure affects the biological characteristics of exploited fish stocks. The biological characteristics of hairtail(Trichiurus lepturus) in the East China Sea are unable to recover because of long-term trawling. Fishing induces evolutionary effects on the fish's biological characteristics. Evidence of these changes includes small size at age, a shift to earlier age structure, and early maturation. Natural and artificial selection usually affect the fish's life history. Selection can induce different chances of reproduction, and individual fish can give a different genetic contribution to the next generation. In this study, analysis of time-dependent probability of significance and test of sensitivity were used to explore the effects of fish exploitation rate, mesh size, and heritability with long-term trawling. Results showed that fishing parameters were important drivers to exploited fish population. However, genetic traits altered by fishing were slow, and the changes in biological characteristics were weaker than those caused by fishing selection. Exploitation rate and mesh size exhibited similar evolutionary trend tendency under long-term fishing. The time-dependent probability of significance trend showed a gradual growth and tended to be stable. Therefore, the direction of fishing-induced evolution and successful management of fish species require considerable attention to contribute to sustainable fisheries in China. | YU Yang SUN Peng CUI He SHENG Huaxiang ZHAO Fenfang TANG Yanli CHEN Zelin | 2015 | Journal of Ocean University of China2015，14，5： | 0 |
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