涪江下游福建纹胸鮡可量性状的初步研究

Preliminary Study on the Morphometric Characteristics of Glyptothorax fukrensis in Lower Reaches of Fujiang River

[目的]探讨涪江下游福建纹胸鮡可量性状的特点和物种有效性。[方法]对1997年3月至1998年4月采于涪江下游合川段的福建纹胸鮡样本进行研究,初步分析了体长、体质量、丰满度等生物学特征。[结果]福建纹胸鮡雄性全长(9.98±1.456)cm,体长(8.18±1.224)cm,体质量(11.52±5.124)g;雌性全长(8.70±1.061)cm,体长(7.09±0.881)cm,体质量(7.20±3.635)g。雄性体长/体高4.93±0.71,体长/头长3.95±0.31,体长/尾柄长5.49±0.53,体长/尾柄高10.82±1.20;雌性体长/体高5.13±0.69,体长/头长3.94±0.81,体长/尾柄长5.54±0.52,体长/尾柄高11.20±1.37。体质量与体长关系式为:m=0.021 112.940 4,N=1 422,R2=0.781 7。丰满度雌雄差异不显著,但季节差异显著。[结论]福建纹胸鮡属均匀增长型。中华纹胸鮡和福建纹胸鮡是同物异名。

[ Objective] The study aimed to discuss the morphometric characteristics of Glyptothoraxfukrensis in lower reaches of Fujiang River and its species validity. [ Method ] The body length, weight and fullness of specimens of Glyptothorax fukiensis collected from the lower reaches of Fujiang River were tested. [ Results ] For males, the mean full length was （9.98±1. 456）cm, the mean length was （8.18± 1. 224 ） cm, the mean weight was （11.52±5. 124） g; for females, the mean full length was （8.70 ±1. 061 ） cm, the mean length was （7.09±0.881 ） cm, the mean weight was （7.20±3. 635 ） g. For males, the mean ratio of body length to body height was 4.93±0.71, body length to head length was 3.95±0.31, body length to tail length was 5.49±0.53, body length to taft height was 10.82±1.20 ; for females, the mean ratio of body length to body height was 5.13±0.69, body length to head length was 3.94 ±0.81, body length to tail length was 5.54±0.52, body length to tail height was 11.20±1.37. The relationship between body weight and body length was described as follows： m = 0. 021 11^2. 9404, N = 1 422, R^2 = 0.781 7. The tidiness differs obviously among seasons, but do not differ obviously between male and female. [ Conclusion ] The growth of Glyptothorax fukiensis would achieve without peak. Glyptothorax fukiensis and Glyptothorax sinese were the same species with different names.