摘要
裤式拖网法是渔具选择性研究方法之一 ,其网形和校核试验于 2 0 0 2年 1月在挪威特鲁姆瑟海湾进行。在 1 1 5～ 2 70 m的水深范围内 ,测量的裤式拖网网口的水平扩张平均为 (2 3.2 7± 0 .2 6) m,网口高度为 (6.53± 0 .1 2 ) m;右网囊对左网囊的虾渔获物重量之比为 1 .0 0± 0 .0 4 ,右网囊对左网囊的渔获物尾数之比为 1 .0 8± 0 .0 9,渔获物种类及体长频率分布相似 。
The trouser trawl method is one of the methods of m ea suring the selectivity of towed fishing gears. The experiments of the net form a nd the calibration of the trouser trawl were carried in Tromos, Norway in Jan., 2002. Average wing spread was (23.27 ±0.26)m and average height of the net open ing was (6.53±0.12)m. The ratio between the two cod ends in shrimp weight and catch in number were 1.00±0.04,1.08±0.09 respectively, and the species and the body length distributions were similar. The results confirm that the trouser tr awl is suited to selectivity experiments.
出处
《青岛海洋大学学报（自然科学版）》
CSCD
北大核心
2003年第5期695-700,共6页
Journal of Ocean University of Qingdao
基金
挪威研究理事会课题资助
