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本文研究了镜泊湖细鳞斜颌鲴的年龄与生长,通过对细鳞斜颌鲴鳞片上形成的年轮鉴定和退算,镜泊湖细鳞斜颌鲴的1龄鱼体长为5.5cm;2龄鱼12.6cm;3龄鱼18.2cm;4龄鱼23.1cm;5龄鱼26.8cm;6龄鱼29.0cm。体重与体长的相关表达式为:w=0.01287513.0553,r=0.999.根据Von.Bertalanffy的生长方程理论公式运算,其生长参数:L∞=40. 8cm;W∞=1024g;-k=0. 244;to=0.332,r=0.998.tip=5.2龄:Tmax=13.7龄。细鳞斜颌鲴在黑龙江水系的生长速度较慢,尤其是1龄,仅5.5cm和2.4g,无疑越冬能力差,影响群体数量的增加,使之镜泊湖的细鳞斜颌鲴资源不丰的重要因素之一。
In this paper, we studied the age and growth of Obliquus ostreatus in Jingpo Lake, and identified and decomposed the annual rings formed on scales of Obliquus maxillaryis, .5cm; 2nd instar fish 12.6cm; 3rd instar fish 18.2cm; 4th instar fish 23.1cm; 5th instar fish 26.8cm; 6th instar fish 29.0cm. Weight and body length of the relevant expressions: w = 0.01287513.0553, r = 0.999. According to Von. Bertalanffy growth equation theory formula operation, the growth parameters: L∞ = 40. 8cm; W∞ = 1024g; -k = 0. 244; to = 0.332, r = 0.998. tip = 5.2: Tmax = 13.7. Squamata maxiaea in Heilongjiang River water system slow growth, especially the first instar, only 5.5cm and 2.4g, no doubt the ability of overwintering, affecting the population increase, so that the Jingpohu fine scales oblique jaw 鲴One of the important factors of poor resources.