水产学报2018，Vol.42Issue(2)：226-235,10.DOI:10.11964/jfc.20161110603
南澳白沙湾海藻养殖区内外渔业资源声学评估
Acoustic estimation of fishery resources inside and outside the algae breeding zone of Baishawan in Nan'ao
摘要
Abstract
In order to know the fish resource distribution and the variation of the biomass density, three acoustic surveys were conducted with a split-beam echo sounder (EY60 model, 200 kHz, Simrad) inside and outside the al-gae breeding zone of Baishawan in Nan'ao on Apr. 28, Dec. 2, 2015, and Apr. 19, 2016. The acoustic assessment results showed that the resource abundance density of three times inside and outside the algae breeding zone were 3.45/1.38×105, 0.63/1.45×105 and 3.67/2.98×105 inds/n mile2. Obviously, the biomass was higher in spring than in winter inside the algae breeding zone and the resource abundance density changed evidently as the seasons than outside the algae breeding zone. The highest resource abundance density was mainly in 2–6 m depth layer, 6–8 m depth layer took second place, and the upper and the bottom had the least. The biomass was affected by the depth of significant resources abundance density. Our research confirmed that during the period of algae breeding, the re-source abundance density was higher inside than outside the algae breeding zone and changed evidently. It was im-portant for the algal biology to change the biomass and distribution inside the algae breeding zone.关键词
鱼类资源/丰度密度/空间分布/声学评估/南澳岛Key words
fish resources/abundance density/spatial distribution/acoustic surveys/Nan'ao Island分类
农业科技引用本文复制引用
郭禹,李纯厚,陈国宝..南澳白沙湾海藻养殖区内外渔业资源声学评估[J].水产学报,2018,42(2):226-235,10.基金项目
公益性行业(农业)科研专项(201403008) （农业）
"十二五"国家科技支撑计划(2012BAD18B01) （2012BAD18B01）
国家自然科学基金—广东联合基金重点项目( U1301235) （ U1301235）
Special Fund for Agro-scientific Research in the Public Interest(201403008) （201403008）
National"Twelfth Five-Year" Plan for Science & Technology Support(2012BAD18B01) （2012BAD18B01）
Key Project of National Natural Science Foundation of China-Guangdong Joint Funds(U1301235) （U1301235）
