| 叶尔特斯河野生北极茴鱼生物学研究 |
| Preliminary Study on Biology of Thymallus arcticus grubei in Yertex River |
| 投稿时间：2008-01-10 |
| DOI： |
| 中文关键词:野生北极茴鱼 生物学指标 叶尔特斯河 |
| 英文关键词:Thymallus arcticus grubei Biological characters Yetex river |
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| 中文摘要: |
| 2007年8月30日～9月3日，对生活在阿勒泰市富蕴县可可托海镇额尔齐斯河上游支流叶尔特斯河里的野生北极茴鱼进行了野外采样和资源调查，采样距离5km，采集样本36尾。逐尾进行全长、体长、体重等测量及性腺发育、食性、鱼鳞年龄等观察，并做记录。生物学研究表明：渔获物中1^＋龄鱼平均体长11．07cm，平均体重17．67g；2^＋龄鱼平均体长17．79cm，平均体重86．08g；3^＋龄鱼平均体长22．48cm，平均体重196．33g；性成熟个体3^＋龄；年龄组成主要为2^＋龄、3^＋龄。野生北极茴鱼规格偏小，年龄组成和性成熟年龄均呈现低龄化。野生北极茴鱼秋季摄食旺盛，胃充塞度多为2级和3级，在水温5～8℃时，摄食强度与水温升高呈正比。 |
| 英文摘要: |
| A survey was conducted to investigate the biological characters of Thymallus arcticus grubei in the Yertex River from August 30th to September 3rd in 2007. Totally 36 specimens, with body-length ranging from 10.3 cm to 23 cm and body-weight ranging from 15 g to 225 g, were collected by angling in a 5 km reach of Yertex River in Fuyun county, Altay, Xinjiang. The capture was consisted of 3 age-groups, with dominant of 2^＋ year-old individuals. The average body-length of 1^＋ year-old individuals was 11.07 cm and the average body-weight was 17.67g, the average body-length and body-weight of 2^＋ year-old individuals were 17.79 cm and 87.08 g, and those of 3^＋ year-old individuals were 22.48 cm and 196.33 g, respectively. T. arcticus grubei matured at 3^＋ year-old. T. arcticus grubei intake food actively in autumn. Its fullness idexs of stomach were mainly 2 and 3. Its feeding intensity was positively correlated to water temperature when which ranged from 5℃ to 8℃. |
| 向伟,范镇明,殷建国,钱龙,胡伯林.2009.叶尔特斯河野生北极茴鱼生物学研究[J].水生态学杂志,30(4):75-78. |
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