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基于2010年9月—2013年5月连续33个月份在九龙江口紫泥、岛美、浮宫3个站位流刺网和定置网调查采集的样本,对斑和花的生长和死亡特性进行了初步研究,并利用单位补充量产量模型对斑和花渔业的开发状态进行了评估.结果表明:1)斑的体长分布范围为29.0~190.30 mm,平均为103.54 mm;体重分布范围为0.30~121.20 g,平均为19.88 g.Von Bertalanffy生长参数L∞=204.75 mm,K=0.36,t0=-0.45a,总死亡系数、自然死亡系数和捕捞死亡系数分别为1.14、0.468 42和0.671 58;渔业生物学参考点F0.1和F max分别为0.647 52和0.745 56.2)花的体长分布范围为42.00~143.00 mm,平均为89.26 mm;体重分布范围为1.00~43.85 g,平均为11.32 g.其生长参数L∞、K和t0分别为152.25 mm、0.32和-0.55a,总死亡系数、自然死亡系数和捕捞死亡系数分别为1.54、0.471 05和1.068 95;渔业生物学参考点F0.1和F max分别为1.165 78和1.321 32.通过YPR模型分析得出:斑资源处于过度捕捞状态,花资源尚未过度利用.
Based on the samples collected from the spill network and the set-point network collected from the three stations of Zijin, Shimamei and Fugu in the Jiulong River estuary from September 2010 to May 2013 for 33 consecutive months, the growth and mortality of scabies and scabies The results showed that: 1) The body length distribution ranged from 29.0 to 190.30 mm with an average of 103.54 mm; The body weight distribution ranged from 0.30 to 121.20 g with an average of 19.88 g.Von Bertalanffy growth parameters L∞ = 204.75 mm, K = 0.36, t0 = -0.45 a, total mortality, natural mortality and fishing mortality were 1.14,0.468 42 and 0.671 58, respectively; F0.1 and F max of fishery biology reference points were 0.647 52 and 0.745 56.2, respectively). The body length distribution ranged from 42.00 to 143.00 mm with an average of 89.26 mm and body weight distribution ranged from 1.00 to 43.85 g , With an average of 11.32 g. The growth parameters L∞, K and t0 were 152.25 mm, 0.32 and -0.55 a, respectively. The total mortality, natural mortality and fishing mortality were 1.54, 0.471 05 and 1.068 95, respectively. The reference points F0.1 and Fmax are 1.165 78 and 1.321 32. respectively Results: spot resource is overfished state, flower resources are not yet over-exploitation.