【摘要】 测量并分析了沙塘鳢(Odontobutis obscurus(Temminck et Schlegel))的体重、体长、全长、体宽、体高、头长、眼间距、吻宽和尾柄高及其相互关系,除体长与体重的关系以模型y=ax~b拟合较好外,体长与其它长度指标的关系均以模型y=a+bx拟合较好。随着体长的增加,体高/体长、眼间距/体长和吻宽/体长等指标均显著增加,这表明,随着沙塘鳢的生长,鱼类的体型一直在发生变化。更多还原

【Abstract】 The body weight, body length, whole length, body width, body height, head length, interorbital space, rostrum width and caudal peduncle height of Odontobutis obscurus were determined and analysed. The relationship between body length and body weight can be conveyed by equation y =ax~b, and the relationship between body length and the other measurable parameters can be conveyed by equation y=a+bx. With body length increase, the ratios of body height/body length, interorbital space/body length and rostrum width/body length increase significantly, and the result showed that the fish body form changes with increasing body length.更多还原