本文選題：中華絨螯蟹　切入點(diǎn)：蟹汛　出處：《浙江農(nóng)業(yè)學(xué)報(bào)》2016年04期 　論文類型：期刊論文

【摘要】：采用沿江實(shí)地調(diào)查、跟船監(jiān)測、漁民訪談和漁政部門核實(shí)相結(jié)合的方式,調(diào)查了2008—2014年長江中下游江西、安徽段中華絨螯蟹成體資源變動情況。研究表明:長江中下游江西、安徽段汛期時(shí)間和捕撈期均有變化,中游捕撈期增加了20~30 d,下游捕撈期減少了7~12 d;成蟹漁獲物平均體質(zhì)量達(dá)到了大蟹標(biāo)準(zhǔn),肥滿度均值達(dá)到了一級蟹標(biāo)準(zhǔn)。研究還發(fā)現(xiàn),2008—2014年中華絨螯蟹捕撈量呈現(xiàn)一個(gè)先升后降的"∧"形曲線,與同期長江水質(zhì)污染物總量存在顯著的負(fù)相關(guān)關(guān)系。在此基礎(chǔ)上,針對長江水系中華絨螯蟹資源保護(hù),提出了強(qiáng)化長江污染物排放總量控制,設(shè)立長江口中華絨螯蟹產(chǎn)卵場保護(hù)區(qū);加強(qiáng)長江漁政管理力度,暢通中華絨螯蟹洄游通道;繼續(xù)加大長江中華絨螯蟹增殖放流力度,采取生態(tài)調(diào)度等管理對策。
[Abstract]:By means of field investigation along the Yangtze River, monitoring with ships, interview with fishermen and verification by fishery administration departments, the changes of adult resources of Eriocheir sinensis in Jiangxi and Anhui sections of the middle and lower reaches of the Yangtze River from 2008 to 2014 were investigated. The results show that: Jiangxi Province in the middle and lower reaches of the Yangtze River, The flood season and fishing season in Anhui have changed, the fishing period in the middle reaches has increased by 20 ~ 30 days, the fishing period in the lower reaches has been reduced by 7 ~ 12 days, and the average body mass of adult crab has reached the standard of large crab. It was also found that the catch of Eriocheir sinensis (Eriocheir sinensis) from 2008 to 2014 showed a curve of "A" which rose first and then decreased, which had a significant negative correlation with the total amount of pollutants in water quality of the Yangtze River in the same period. In view of the resource protection of Eriocheir sinensis in the Yangtze River system, it is proposed to strengthen the total discharge control of pollutants in the Yangtze River, to establish a protected area of spawning grounds for Eriocheir sinensis in the Yangtze River Estuary, to strengthen the management of fishery administration on the Yangtze River, and to open the migration channels of Chinese mitten crab. Continue to increase the Yangtze River mitten mitten crab proliferation and release, ecological regulation and other management measures.
【作者單位】： 中國水產(chǎn)科學(xué)研究院東海水產(chǎn)研究所農(nóng)業(yè)部東海與遠(yuǎn)洋漁業(yè)資源開發(fā)利用重點(diǎn)實(shí)驗(yàn)室;上海海洋大學(xué)水產(chǎn)與生命學(xué)院;江西省水產(chǎn)科學(xué)研究所中心實(shí)驗(yàn)室;
【基金】：公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)(201203065) 農(nóng)業(yè)部東海與遠(yuǎn)洋漁業(yè)資源開發(fā)利用重點(diǎn)實(shí)驗(yàn)室2014年度開放課題(2014K02)
【分類號】：S937

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