| 摘要: |
| 运用1960年3月- 1960年4月由中国科学院海洋研究所采集于洞头、吕泗渔场大黄鱼标本513尾，利用耳石切片确定大黄鱼的年龄。通过分析大黄鱼的耳石和体长的生长规律，证明大黄鱼的耳石生长不仅仅与鱼体生长成简单的直线相关，而且大黄鱼的耳石生长、体长牛长和年龄三者之间密切相关，并推导出了数学方程式。拟合计算结果表明，两各方程式能够较准确地表达三者之间的相关关系。 |
| 关键词: 耳石 年龄 生长 关系 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目，3880153号 |
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| RELATIONSHIP AMONG BODY LENGTH, OTOLITH AND AGE OF THE LARGE CROAKER PSEUDOSCIAENA CROCEA |
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Lan Yonglun, Luo BingZheng
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Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071
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| Abstract: |
| In order to determine the relationship among the otolith radius. Body length and age of fishes, the otolith of 513 large croakers Pseudosciaena crocea caught from the Dongtou and Lusi fishing ground in the East China Sea in March and April, 1960 were cut open for study and their ages were determined. Analysis of the growth patterns of otoliths and body lengths showed that otolith size was positively related to age of the fish, and that the otolith radii of the fishes of the same age were positively related to the fish lengths.
According to the stochastic process theory, otolith growth is divided into a first stage of otolith growth in pace with age and second stage of otolith growth in pace with body growth. This hypothesis relates otolith radius to the age and body length of large croacker as expressed in the formula, r = Ale-Kt+B(1 - e-Kt)+C, and according to a similar hypothesis, the relation of the body length of large croacker to that of the age and otolith radius can be deduced as l = Are-Kt+B(1 - e-Kt) +C, where, l is body length, r is otolith radius, t is age, and A. B, C and K are empirical parameters. By means of the iteration method, we simulated the relationship of the body length, otolith radius and age of the large croacker. The results showed that the equation expressed the relationship very precisely. |
| Key words: Otolith, Age, Growth, Relationship |
