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题名: Age determination and growth of Chinese paddlefish Psephurus gladius
作者: Ma Jun, Deng Zhonglin ; Deng Xin ; Cai Mingyan
通讯作者: Inst. Hydrobiol., Chinese Acad. Sci., Wuhan 430072, China
刊名: Acta Hydrobiologica Sinica
发表日期: 1996
卷: 20, 期:2, 页:150-159
收录类别: 其他
英文摘要: Observation of compare with the sections of two calcified structures, i.e. pectoral fin ray and dentary bone from Chinese paddlefish Psephurus gladius were conducted. It reveals that the 3rd and 5th pectoral fin rays are optimal aging structures for the fish. The age determination of the Chinese paddlefish indicated that 8 immature individuals were 1 sbd 3 years of age, 58 mature individuals were 6 sbd 17 years old. Of these, the majority of 33 males, with the youngest age of 6 years old and the oldest 11, fell between 7 sbd 9 age groups; the most of 25 females, with the youngest 7 and the oldest 17, fell between 8 sbd 12 age groups. The rate of growth of the Chinese paddlefish appears to be rapid, especially in the first year of life. The Von Bertalanfy Growth Function (VBGF) for growth in length could be written as: for males L-t = 368.5(1-e-0.0901(t+1.66)) for females L-t = 436.3(1-e-0.0724(t+2.29)) where L-t = total length in cm, t = age in years. The VBGF for growth in weight could be written as: for males w-t = 148.6(1-e-0.0901(t+1.66))-3.2340 for females w-t = 264.0(1-e-0.0724(t+2.29))-3.2497 where w-t = weight in kg, t = age in year.
ISSN号: 1000-3207
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17955
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Ma Jun, Deng Zhonglin; Deng Xin; Cai Mingyan.Age determination and growth of Chinese paddlefish Psephurus gladius,Acta Hydrobiologica Sinica,1996,20(2):150-159
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