摘要
刺黄盖鲽是黄盖鲽属中最重要的经济鱼种,也是东白令海鲽科鱼类中产量最高的鱼种。其分布于北美南部海岸到不列颠哥仑比亚北部水域,但它在阿拉斯加湾未能形成商业性渔业。在太平洋西北部水域,则分布于从阿纳德尔湾(Gulf of Anadyr)至朝鲜东海岸附近,并且在堪察加半岛西海岸及鄂霍茨克海的一些海域形成商业性渔场。过去美国、苏联、日本等国的渔业科学家对该鱼做了不少研究,但在国内除了对黄盖鲽(Pseudoplcuronectes yokokamae)开展过生物学研究外,对刺黄盖鲽还未进行过调查研究。故笔者拟将参加“烟运二号”生产实践和考察中搜集的刺黄盖鲽资料整理如下,以供参考。
Samples of 2930 young and adult yellowfin solecaught by single ship trawl net were collected in Bristol Bay of Eastern Bering Sea from April 12 to June 9 in 1987. The otolith is used to determine the age of the fish.
In present paper the relation between the body length and otolith radius is expressed in this way. The results are as follows:
♀: L=46.67+4.09R r=0.9474
♂: L=5.62+4.67R r=0.9733
Where L is body length, and R is otolith radius.
The relation between the body length L_t and weight w_t, where L_t and W_t are the respective average values of length and weight of the male and female fish of the same age, and the variations of L_t and W_t with time t (continuous age) are investigated. The results are as follows:
♀: W_t=2.l65×l0^(-5)L_t^(2.979) r=0.9979
L_t=359[l-e^(-0.1315(t+1.587))]
W_t=884[1-e^(-0.1315(t+1.587))]^(2.977)
♂: W_t=2.579×l0^(-5)L_t^(2.935) r=0.998l
L_t=288[l-e^(-0.2475(t+0.52l8))]
W_t=426[1-e^(-0.2475(t+0.5218))]^(2.936)
The relation between the growth rate and the age of the fish is examined.
出处
《海洋湖沼通报》
CSCD
北大核心
1989年第3期63-70,共8页
Transactions of Oceanology and Limnology
