南海北部大陸架漁場2016年伏季休漁效果評(píng)價(jià)
發(fā)布時(shí)間:2018-04-01 03:10
本文選題:南海 切入點(diǎn):漁場 出處:《水產(chǎn)科技情報(bào)》2016年06期
【摘要】:根據(jù)2016年4~8月在南海北部大陸架漁場廣西生產(chǎn)漁船的捕撈信息,通過對(duì)比休漁前后的漁獲指標(biāo),評(píng)價(jià)了休漁在恢復(fù)漁業(yè)資源方面的效果。結(jié)果表明:(1)單雙拖網(wǎng)、桁桿拖蝦網(wǎng)和燈光罩網(wǎng)的產(chǎn)量分別占漁船總產(chǎn)量的64.92%、8.70%和24.70%,是該漁場最主要的捕撈類型;(2)休漁后,單雙拖網(wǎng)、桁桿拖蝦網(wǎng)和燈光罩網(wǎng)漁船的漁獲率(CPUE)分別提高了28.78%、96.27%和4.20%,比2015年同期分別提高了24.00%、65.41%和13.35%;(3)單雙拖網(wǎng)和桁桿拖網(wǎng)捕獲的主要經(jīng)濟(jì)種類產(chǎn)量所占比例較休漁前增加了41.74%和3.04%;(4)主要經(jīng)濟(jì)種類中,多數(shù)種類的CPUE提高,且CPUE提高顯著的種類多為經(jīng)濟(jì)價(jià)值較高的南海傳統(tǒng)捕撈對(duì)象。研究結(jié)論:休漁促使南海北部大陸架漁場的漁業(yè)資源量增加,資源結(jié)構(gòu)優(yōu)化。
[Abstract]:Based on the fishing information of fishing vessels produced in Guangxi, a fishing ground on the northern continental shelf of the South China Sea from April to August 2016, the effect of fishing moratorium on restoring fishery resources was evaluated by comparing the catch indexes before and after the moratorium. The yield of truss shrimp net and lamplight net accounted for 64.922percent and 24.70 percent of the total output of the fishing vessel respectively. It was the most important fishing type in this fishing ground. The catch rate of truss shrimp net and lamplight net increased 28.78%, 96.27% and 4.20% respectively, which was 24.00% 65.41% and 13.35% higher than that of the same period of 2015. The yield of main economic species caught by single and double trawls and truss trawls increased by 41.74% compared with that before the fishing moratorium. Of the main economic categories, The increase of CPUE of most species and the significant increase of CPUE are the traditional fishing objects of high economic value in the South China Sea. The conclusion of the study is that the fishery resources of the continental shelf fisheries in the northern part of the South China Sea are increased and the resource structure is optimized.
【作者單位】: 北海市水產(chǎn)技術(shù)推廣站;中國水產(chǎn)科學(xué)研究院珠江水產(chǎn)研究所;
【基金】:農(nóng)業(yè)財(cái)政項(xiàng)目海洋捕撈基礎(chǔ)信息動(dòng)態(tài)采集網(wǎng)絡(luò)“南海海洋捕撈生產(chǎn)結(jié)構(gòu)調(diào)查”項(xiàng)目(20161640) 廣西壯族自治區(qū)水產(chǎn)畜牧獸醫(yī)局“廣西2015年海洋水生生物增殖放流效果評(píng)估”項(xiàng)目(2016131)
【分類號(hào)】:F326.4;S931
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