摘要
根据2008年5月（春）、8月（夏）、11月（秋）和2009年2月（冬）在26°00′~35°00′N、121°00′~127°00′E以西海域的底拖网调查资料,研究了东海北部、黄海南部黄鮟鱇Lophius litulon的数量分布、群体结构特征及其分布海域的环境特征。结果表明：东海北部、黄海南部黄鮟鱇主要分布在大沙渔场、江外渔场、舟外渔场和连青石渔场中南部;全年平均渔获率为0.143 kg/h,数量分布的高峰期出现在夏季,平均渔获率为0.298 kg/h,其次是冬季,为0.143 kg/h,春季最低,只有0.032 kg/h;渔获物体长为27~650mm,平均为268 mm,体重为0.6~6 715 g,平均为806 g,冬季渔获个体最大（292 mm,951 g）,夏季最小;4—5月为黄鮟鱇的集中产卵时间;黄鮟鱇分布海域的底层水温为6.43~20.01℃,平均为13.02℃;底层盐度为30.37~35.03,平均为32.90;水深分布为17.0~107.2 m,平均为64.4 m,密集分布区的水深为40~80 m。
The quantitative distribution,and population structure of yellow goosefish Lophius litulo and ecological environment characteristics were analyzed based on the seasonal data collected from a bottom trawl survey carried out in the northern East China Sea and southern Yellow Sea（26°00′-35°00′ N,121°00′-127°00′ E） from May in 2008 to February in 2009.The results showed that the fish was found dominantly in Dasha fishing ground,Jiangwai fishing ground,Zhouwai fishing ground and the southern Lianqingshi fishing ground.The catch in the whole year was observed at a rate of 0.143 kg/h,the maximum 0.298 kg/h of quantity distribution in summer,followed in winter（0.143 kg/h） and the minimum in spring（only 0.032 kg/h）.The fish caught had 268 mm（27-650 mm） in average body length and 806 g（0.6-6 715 g） in body weight in the catch,with distinct difference in ratio of male to female,292 mm and 951 g in winter,larger than in other seasons,and the minimum in summer.The yellow goosefish was found to spawn in April and in May.The bottom temperature ranged from 6.43 ℃ to 20.01 ℃ with the mean value 13.02 ℃.The bottom salinity ranged from 30.37 to 35.03,with the mean value 32.90.The water depth ranged from 17.0 to 107.2 m,with mean value 64.4 m.The crowded fish was observed at the depth ranging from 40 m to 80 m.
出处
《大连水产学院学报》
CSCD
北大核心
2010年第5期465-470,共6页
Journal of Dalian Fisheries University
基金
国家科技支撑计划项目(2007BAD43B01)
浙江省科技厅科技计划项目(2010F30001)
关键词
黄鮟鱇
数量分布
群体结构
环境特征
东海北部
黄海南部
Lophius litulon
quantitative distribution
population structure
ecological environment characteristics
the northern East China Sea
the southern Yellow Sea
