| 五岳水库青梢红鲌的生物学研究 |
| The Preliminary Study on Biology of Erthryoculter dabryi in Wuyue Reservoir |
| 投稿时间：2009-05-25 修订日期：2009-06-27 |
| DOI： |
| 中文关键词:青梢红鲌 生物学 五岳水库 调查 |
| 英文关键词:Key words: Erythroculter dabryi , biology, Wuyue reservoir |
| 基金项目: |
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| 中文摘要: |
| 对五岳水库青梢红鲌的生物学规律进行了初步研究。主要结果如下：（1）肠道充塞度从0-3级依次为18%、54%、16%、12% ，未发现有达到4-5级的，（2）雌雄性比为1:1.6；（3）性成熟系数为1.02（雌）和0.70（雄）；（4）体重与体长的回归关系式为W=0.0180×L2.8998 （R2=0.941）；（5）体长和龄径的关系式为Y=8.0478+0.4770X （R2=0.6226）；（6）肥满度平均为1.433，1-4龄分别为1.451、1.420、1.489、1.494；（7）体长与年龄的von Bertalanffy方程为：Lt = 20.380×( 1–e–0.5600 ( t +1.034 ) ) (R2 = 0.9995)。体重与年龄的von Bertalanffy方程为：Wt = 112.643×( 1–e– 0.5600 ( t +1.034 ) )3 (R2 = 0.9996)。拐点年龄为2.588龄。 |
| 英文摘要: |
| Abstract：We carry on studying Erythroculter dabryi for showing four aspects. Firstly, Erythroculter fish is more and more welcomed by many consumers. Secondly, the study on Erythroculter dabryi is more lack in three Erythroculter fish (Erythroculter Mongolia, Erythroculter dabryi and Erythroculter ilishaeformis）.Thirdly, in fresh water ecosystem, Erythroculter dabryi have its irreplaceable ecological niche. At last, this study may provide important data of sustainable exploiture.
This study use traditional research method and indicate following several results:
①The degrees of intestinal tract fullness of Erythroculter dabryi are 18%, 54%, 16% and 12% in range from 0 to 3 grades respectively, and there is no fish whose get to grade 4 and 5.
②Sex ratio(♂:♀) is 1: 1.5.
③Mean GSI are 1.02(♀) and 0.70 (♂) respectively.
④The regression formula between body weight and length is W=0.0180×L2.8998 ,（R2=0.941）.
⑤The regression formula between body length and scale radium of is Y=8.0478+0.4770X ,（R2=0.6226）.
⑥Mean body fullness is 1.433, and those of age from 1~4 are respectively 1.451、1.420、1.489、1.494.
⑦Von Bertalanffy regression formula between body length and age is Lt = 20.380×( 1 – e – 0.5600 ( t +1.034 ) ) , (R2 = 0.9995), and von Bertalanffy regression formula between body weight and age is Wt = 112.643×( 1 – e – 0.5600 ( t +1.034 ) ) 3 ,(R2 = 0.9996). Its age at turning point is 2.588 years
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| 潘开宇,杨东辉,邢国新.2009.五岳水库青梢红鲌的生物学研究[J].水生态学杂志,30(5):75-79. |
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