| 西伯利亚鲟稚幼鱼生长特征的初步研究 |
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| 引用本文： | 林星.西伯利亚鲟稚幼鱼生长特征的初步研究[J].莆田学院学报,2003,10(3):30-33. |
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| 作者姓名： | 林星 |
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| 作者单位： | 莆田市科技培训中心,福建,莆田,351100 |
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| 摘 要： | 在人工培育条件下,对西伯利亚鲟稚幼鱼的生长特征进行了研究,结果表明:平均体长为2.12 cm、平均体重为0.07 g的7日龄稚鱼经140 d的人工饲养长成平均全长为42.69 cm、平均体重为254 g的个体,其日均增长量2.93 mm、平均瞬时增长率2.14 %,全长与日龄之间呈线性关系,L = -0.7711+ 0.3126t (r = 0.9948);体重日均增长量1.82 g、平均瞬时增重率5.37 %,体重与日龄呈指数函数关系,W = 0.3157e0.0529t (r = 0.9354);体重与全长的回归曲线为W = 0.0082L2.7046 (r = 0.9977),幂指数值接近3,表明该鱼体重与全长的立方呈正相关关系,属于等比生长类型。
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| 关 键 词： | 西伯利亚鲟 稚幼鱼 生长特征 |
| 文章编号： | 1672-4143(2003)03-0030-04 |
| 修稿时间： | 2003年4月29日 |
Preliminary Study on Growth Characteristics of Juvenile Acipenser Baeri |
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| LIN,Xing.Preliminary Study on Growth Characteristics of Juvenile Acipenser Baeri[J].journal of putian university,2003,10(3):30-33. |
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| Authors: | LIN Xing |
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| Abstract: | The growth characteristics of juvenile Acipenser Baeri were described in this article. Under artificial farming conditions the 7 days old Juvenile fishes with an average body length of 2.12 cm and an average body weight of 0.07 g grew up into adults with 42.69 cm and 254 g through a rearing period of 140 days. And the average body length and body weight of the fishes gained in 2.93 mm and 1.82 g daily. The instantaneous growth rates of the fishes in average body length and body weight were 2.14 % and 5.37 % respectively. The total length keep linear relation with their age, and the regressive equation is L = -0.7711 + 0.3126t (r = 0.9948). The body weight keeps power functional relation with their age, and the weight growth curve expression is W = 0.3157e0.0529t (r = 0.9354). The length weight relationship of the fish is W = 0.0082L2.7046 (r = 0.9977). This makes clear that there is a positive correlation between body weight and cube of body length. Here by the growth pattern of the fish can be described a geometric ones generally. |
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| Keywords: | Acipenser baeri Juvenile fish Growth characteristics |
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