| 阿克苏河塔里木裂腹鱼生物学初步研究 |
| Priliminary Study on the Biological of Schizothorax biddulphi Günter in Aksu River |
| 投稿时间：2008-05-12 |
| DOI： |
| 中文关键词:阿克苏河 塔里木裂腹鱼 生物学 塔里木河 |
| 英文关键词:Aksu river basin Schizothorx biddulphi Giinter biological characteristics Talimu river basin |
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| 中文摘要: |
| 采用常规生物学方法，对阿克苏河塔里木裂腹鱼的形态特征、体长与体重关系、肥满度、食性、繁殖等个体生物学特征进行了观测研究。结果表明，塔里木裂腹鱼体长与体重的相关表达式为：Ｗ＝０．０２０Ｌ２．８８８６（ｒ＝０．９９２）；杂食性，喜食水生昆虫。在体长３０ｃｍ以内，随着体长的增加，肥满度逐渐降低。Ⅴ期时绝对怀卵量平均为３７８４粒，相对怀卵量平均为２３粒／ｇ。成熟卵卵径为１．５１～１．８３ｍｍ。种群性比（♀∶♂）为１．０∶１．４；繁殖群体性比（♀∶♂）为１．０∶１．５。雄性最小性成熟个体体长７７ｍｍ、体重７．０ｇ；雌性最小性成熟个体体长１３３ｍｍ、体重３６０ｇ。每年４～５月，当水温达到１２℃时，开始溯河繁殖。
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| 英文摘要: |
| The biological characteristics of Schizothorx biddulphi Gtinter in Aksu river, such as morphological feature, the relationship of body length and weight, plumpness, feeding habits, reproduction, ect. , were observed by means of biological survey. The results showed that the relationship between its body length and weight was as fol- lows ： W = 0. 020L^2.8886 （ r = 0. 992 ）. Within 30 cm of the body length, plumpness gradually reduced with the growth of body. It＇s diets were miscellaneous and main food was aquatic insects. The fertility was lower, average of absolute fecundity of the breeding groups was 3 784 eggs and relative brood strength were 23 eggs/g, and the diameter of manual eggs were 1.51 - 1.83mm. The sex ratio of males to females in the brood stock was 1.0 to 1.5. than the population compares （ ♀ ： ♂ ） 1.0 ： 1.4. In all t he brood stocks , the body length and body weight of the smallest male individual are 77 mm and 7.0 g , respectively , while the body length and body weight of the smallest female individual are 133 mm and 36.0 g . Breeding time is from April to May. |
| 马燕武,张人铭,吐尔逊,谢春刚,郭焱.2009.阿克苏河塔里木裂腹鱼生物学初步研究[J].水生态学杂志,30(2):148-153. |
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