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当前位置: 首页 > 文章 > 基于渔业声学和灯光罩网的南海中南部鸢乌贼资源评估 中国水产科学 2014 (4) 822-831
Position: Home > Articles > Estimation of purpleback flying squid (Sthenoteuthis oualaniensis) re-source in the central and southern South China Sea based on fisheries acoustics and light-falling net Journal of Fishery Sciences of China 2014 (4) 822-831

基于渔业声学和灯光罩网的南海中南部鸢乌贼资源评估

作  者：
张俊;陈国宝;张鹏;陈作志;范江涛
单  位：
中国水产科学研究院南海水产研究所
关键词：
鸢乌贼;南海;渔业资源;声学评估;灯光罩网
摘  要：
为查明南海外海鸢乌贼(Sthenoteuthis oualaniensis)的资源量及其分布,2012年秋季和2013年春季,利用科学探鱼仪(Simrad EY60)结合灯光罩网采样方法对南海中南部(16°N-5°N)鸢乌贼资源进行了声学调查与评估。在确定该方法的有效性基础上,调查结果显示,1)2012年秋季鸢乌贼丰度和资源量分别是3.26×1010 inds和2.14×106 t,变异系数是23%;鸢乌贼个体胴长范围、平均胴长和平均质量分别是62~248 mm、127 mm和65 g;秋季,鸢乌贼从南至北均有分布,主要分布在8.0°N 以北和114.0°E 以西海域;最高数量密度是1.7×106 inds·nmi-2(6.5°N,111.0°-111.1°E),最高资源量密度是85 t·nmi-2(15.0°N,114.35°-114.45°E);2)2013年春季鸢乌贼丰度和资源量分别是2.98×1010 inds和2.44×6 t,变异系数是23%;鸢乌贼个体胴长范围、平均胴长和平均体质量分别是73~238 mm、122 mm和82 g;春季,鸢乌贼从南至北亦均有分布,主要分布在11.0°N以北;最高数量密度是3.3×106 inds·nmi-2(13.0°N,116.55°-116.65°E),最高资源量密度是60 t·nmi-2(15.0°N,115.25°-115.35°E)。研究表明,南海外海鸢乌贼资源量至少在2.00×106 t以上;与2012年秋季相比,2013年春季鸢乌贼密集区向东北移动。
译  名：
Estimation of purpleback flying squid (Sthenoteuthis oualaniensis) re-source in the central and southern South China Sea based on fisheries acoustics and light-falling net
关键词：
Sthenoteuthis oualaniensis%South China Sea%fishery resource%acoustical estimation%light-falling net
摘  要：
In order to identify the abundance and distribution of Sthenoteuthis oualaniensis in the open waters of South China Sea, two acoustical surveys were conducted using scientific echosounder (Simrad EY60) in the area of central and southern South China Sea (16°–5°N) in the autumn in 2012 and the spring in 2013. The survey results showed:(1) The abundance and biomass of S. oualaniensis in the autumn in 2012 were 3.26×1010 inds and 2.14×106 t respec-tively and the coefficient of variation was 23%;the mangle length range, mean mantle length and mean body mass of S. oualaniensis were 62–248 mm, 127 mm and 65 g, respectively;in the autumn S. oualaniensis population distributed in the entire central and southern South China Sea, mainly distributed north of 8.0°N and 114.0°E area; the maximum abundance density and biomass density of S. oualaniensis were 1.7×106 inds·nmi–2 (6.5°N, 111.0°–111.1°E) and 85 t·nmi–2 (15.0°N, 114.35°–114.45°E) respectively. (2) The abundance and biomass of S. oualaniensis in the spring in 2013 were 2.98×1010 inds and 2.44×106 t respectively and coefficient of variation was 23%;the mangle length range, mean mantle length and mean body mass of Sthenoteuthis oualaniensis were 73–238 mm, 122 mm and 82 g respec-tively; in the spring S. oualaniensis population also distributed in the entire central and southern South China Sea, mainly distributed north of 11.0°N area;the maximum abundance density and biomass density of S. oualaniensis were 3.3×106 inds·nmi–2 (13.0°N, 116.55°–116.65°E) and 60 t·nmi–2 (15.0°N, 115.25°–115.35°E) respectively. The research results indicated that the biomass of S. oualaniensis resource was not less than 2.00×106 t in the open water of South China Sea; compared with the autumn in 2012, concentrated ground of S. oualaniensis moved north and east in the spring in 2013.

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