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Estimates on age,growth,and mortality of gymnocypris firmispinatus(Cyprinidae: Schizothoracinae) in the Anning River,China

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Journal of Oceanology and Limnology 2019年第2期37卷 736-744页

作者： MA Baoshan NIE Yuanyuan WEI Kaijin XU Bin ZHU Xiangyun XU Jin Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Wuhan 430223 China Development Center for Animal Husbandry in Mountain Area in Miao Autonomous County of Songtao Tongren 554100 China

The age, growth, and mortality of gymnocypris firmispinatus were studied by 582 individuals that collected between July 2015 and June 2016 from the tributaries of the Anning River, China. The total length (TL) ranged from 27 mm to 242 mm, total weight (W) ranged from 0.2 g to 148.2 g. The relationship of total length and weight was expressed as W =7.754×10^-6 TL^ 3.304 for the total samples. The age classes of males were 1–9 a, and that of females were 1–13 a. The von Bertalanff y functions based on otolith readings and observed length data were L t ♂=198.6(1–e^-0.094 ( t +3.497)), and L t ♀=289.3(1–e^-0.089 ( t +1.109)). The total mortality ( Z ) of male and female G . firmispinatus was estimated as 0.73/a and 0.40/a, respectively. The natural mortality ( M ) was evaluated as 0.25/a for males and 0.20/a for females, fishing mortality ( F ) was 0.35/a for males and 0.16/a for females. The exploitation ratio of the population was 0.66/a for males and 0.50/a for females. It was concluded that the growth of the fish is relatively slower than other congeneric fishes. The population of G . firmispinatus in the tributaries of the Anning River might be in over-exploitation under the current fishing intensity.

关键词： otolith growth von Bertalanff y model mortality gymnocypris firmispinatus

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Pliocene cyprinids (Cypriniformes,Teleostei) from Kunlun Pass Basin,northeastern Tibetan Plateau and their bearings on development of water system and uplift of the area

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中国科学：地球科学英文版 2010年第4期53卷 485-500页

作者： CHANG Mee-mann Key Laboratory of Evolutionary Systematics of Vertebrates Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of Sciences

Here described are the cyprinid fossils from the Pliocene Lower Member of Qiangtang Formation of the Kunlun Pass Basin,northeastern Tibetan Plateau,collected at a locality 4769 m above the sea level(asl).The materials consist of numerous disarticulated and incomplete bones as well as thousands of pharyngeal teeth,fin rays,and vertebrae.The fossils were referred to the genus gymnocypris,lineage Schizothoracini,family Cyprinidae;the lineage Schizothoracini;and the family Cyprinidae respectively.The Schizothoracini is a freshwater fish group endemic to the Tibetan Plateau and its surrounding area.Previous workers on living schizothoracins regarded that gymnocypris belongs to the highly specialized grade of the group,colonizing higher altitudes than other members of the group.Two species are so far unequivocally assigned to the genus,i.e.,G.przewalskii and G.eckloni,and they are inhabiting Qinghai Lake and the waters on both north(the Golmud River) and south(upper reach of the Yellow River) sides of the East Kunlun Mountain,respectively.The abundant fossil schizothoracins occur in the Kunlun Pass Basin on the southern slope of the East Kunlun Mountain(at 4769 m asl),close to the present Golmud River,indicating comparatively rich waters in the area and possible connections between the water systems on north and south sides of the East Kunlun Mountain during the Pliocene.This also suggests a more humid climate in the area during the Pliocene than it is today.The presence of the highly specialized schizothoracin gymnocypris may also imply less amplitude of uplift(approximately 1000 m) in the area since the Pliocene than previously proposed.

关键词： gymnocypris Schizothoracini Pliocene Kunlun Pass Basin of northeastern Tibetan Plateau development of water system uplift of the area

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西藏南部的裸鲤属(gymnocypris)鱼类

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Current Zoology 1964年第1期 139-150页

作者：张春霖,岳佐和,黄宏金中国科学院动物研究所中国科学院水生生物研究所

作者等1961年5—10月在中国科学院综合考察委员会的领导下,在西藏南部地区的江孜、日喀则两专区的部分水域中进行了鱼类采集,并于1962年在北京进行了鱼类的种类鉴定及资料整理。本文仅报告该地区的裸鲤属(gymnocypris)鱼类,共9种。其中... 详细信息

作者等1961年5—10月在中国科学院综合考察委员会的领导下,在西藏南部地区的江孜、日喀则两专区的部分水域中进行了鱼类采集,并于1962年在北京进行了鱼类的种类鉴定及资料整理。本文仅报告该地区的裸鲤属(gymnocypris)鱼类,共9种。其中新种和新亚种共5个:高体裸鲤(新种)gymnocypris molicorporus sp.nov.;秉氏裸鲤(新种)gymnocypris pingi sp.nov.;驼背裸鲤(新种)gymnocypris gibberis sp.nov.;朱氏裸鲤(新种)gymnocypris chui sp.nov.;宽口秉氏裸鲤(新亚种)gymnocypris pingi orisolatus

关键词：裸鲤属鲤科背鳍腹鳍 gymnocypris 体长尾鳍尾柄长鳍条基部鳍棘胸鳍臀鳞口裂西藏南部

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