随机从福建泉州山美水库2002年4月-2003年5月的翘嘴红鲌(Erythroculter ilishaeformis 渔获物中获取340尾样本,以鳞片为年龄鉴定材料,获得年龄生长资料,建立生长方程和Beverton-Holt模型对山美水库翘嘴红鲌资源进行评估,为制定合理的捕捞年龄和捕捞规格提供科学依据.结果表明,山美水库翘嘴红鲌体重范围是0.035-4.12kg,体长范围是15.6-73.5cm,其中体长20.1-60.0cm的样本占93.57％,且为2+-3+龄.本文给出了该鱼类体长与体重的关系式、体长与鳞径的关系式以及相关的von Bertalanffy方程.山美水库翘嘴红鲌生长拐点为10.4龄,山美水库现有资源量为10.164t,合理开捕年龄为6龄.%340 individuals of Erythroculter ilishaeformis Bleeker were collected in Shanmei Reservoir during April,2002 to May,2003.After studying the growth characteristics,the growth equation and Beverton-Holt model were established to evaluate the Culter alburnus resources of Shanmei Reservoir.The results shown that the range of body weight and body length were 0.035-4.12kg and 15.6-73.5cm,respectively.Samples of the body length of 20.1-60.0cm accounted for 93.57％,which was 2+-3+ages.The relationship between body weight and length was W =2.5034 ×10-5L2.825 (r=0.999).Body length and scale size relationship was L =10.489 + 7.534R (r=0.997).The Von Bertalanffy equation are Lt =120.5981 × [1-e-0.0913(t+1.09)] and Wt =21.9368 × [1-e-0.0913(t+1.09)]2.825,which the growth inflection point was 10.4 ages.By using length cohort analysis and B-H model,the resource capacity (B) was 10.164t,and the reasonably catchable age (tc) was 6 age.
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