水生生物学报2017，Vol.41Issue(4)：835-842,8.DOI:10.7541/2017.104
淮河上游南湾湖麦穗鱼年龄与生长的研究
STUDY ON THE AGE AND GROWTH OF PSEUDORASBORA PARVA FROM NANWAN LAKE UPSTREAM THE HUAIHE RIVER
摘要
Abstract
Pseudorasbora parva is a native small cyprinid fish widely distributes in Asia with a considerable popula-tion. To investigate the growth, age composition and growth characteristics ofPseudorasbora parva, 532 individuals were collected from three different water inlets of Nanwan Lake in March, May, July and December. The results showed that the body length were ranged from 35.82 to 88.28 mm with the mean of (61.61±11.8) mm, and that the body weight were ranged from 3.07 to 59.17 g with the mean of (19.23±10.73) g. The age were ranged from 1 to 3.3 years and the dominant population with the mean of 57.38% were individuals with 3 years. The relationship between body length and body weight wereW=9.602E–5L2.928 (R2=0.883) for female andW=4.487E–5L3.116 (R2=0.889) for male, which showed a significant difference between male and female (F=5.241,P<0.05). A linear relationship was found between the scale radius and body length, which was significantly affected by gender (F=78.405,P<0.05). Growth parameters wereL∞=107.005,K=0.246 andt0= –0.76 for female andL∞=145.254,K=0.181 andt0= –0.66 for male, re-spectively. The growth inflexion of female (3.607 years) were 70.46 mm for body length and 24.72 g for body weight, and the growth inflexion of male (5.619 years) were 98.64 mm for body length and 73.53 g for body weight. These re-sults suggest that the female was isauxesis while the male was allometric, and that the male had a faster growth rate than female.关键词
南湾湖/麦穗鱼/年龄/生长Key words
Lake Nanwan/Pseudorasbora parva/Age/Growth分类
生物科学引用本文复制引用
李红敬,王雅平,冷秋丽,李晓杰,李晓凤,于同雷,黄斌..淮河上游南湾湖麦穗鱼年龄与生长的研究[J].水生生物学报,2017,41(4):835-842,8.基金项目
国家自然科学基金(1204306)资助[Supported by the National Natural Science Foundation of China (1204306)] （1204306）
