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遼寧池養(yǎng)海參因高溫大量減產(chǎn)，水產(chǎn)養(yǎng)殖業(yè)應(yīng)規(guī)?；B(yǎng)殖

2018-08-09 19:06:49 來源：中國農(nóng)機網(wǎng)整理發(fā)布 閱讀量：27384 評論

　　【中國農(nóng)機網(wǎng) 熱點關(guān)注】 近日，遼寧多地因持續(xù)高溫導(dǎo)致大量海參“被熱死”的新聞在水產(chǎn)養(yǎng)殖行業(yè)引起熱議，眾多海參養(yǎng)殖戶遭受重大打擊，損失慘重。
 
　　遼寧海參大面積死亡，經(jīng)濟損失達68.7億元
 
　　近期,遼寧連續(xù)高溫天氣致使海水溫度提升遠超海參適宜生長值,導(dǎo)致遼寧海參大面積死亡。據(jù)央視財經(jīng)報道,遼寧省受高溫災(zāi)害損失面積95萬畝,損失產(chǎn)量6.8萬噸,經(jīng)濟損失68.7億元,其中大連地區(qū)受損為嚴重,大連受災(zāi)面積為63萬畝,死亡率70%,損失產(chǎn)量4.41萬噸,經(jīng)濟損失40億元。遼寧海參養(yǎng)殖業(yè)本次損失嚴重,損失產(chǎn)量占遼寧海參養(yǎng)殖總產(chǎn)量的92%,近乎絕收,損失產(chǎn)量占全國海參養(yǎng)殖產(chǎn)量的67%,本次受損面積占遼寧海參養(yǎng)殖總面積的49%,占全國海參養(yǎng)殖總面積的29%。
 
　　據(jù)報道，蒙受損失的多為海參圈養(yǎng)殖戶，因為連日高溫，參池水溫達到34℃-35℃，海參都自己融化了，加之又遇海水低潮期，池子換水也受到影響。據(jù)遼寧省海洋漁業(yè)廳初步統(tǒng)計，遼寧海參受災(zāi)損失面積95萬畝，損失產(chǎn)量6.8萬噸，直接經(jīng)濟損失68.7億元。遼寧全省海參池塘養(yǎng)殖總面積98.5萬畝，而受災(zāi)面積就達95萬畝，可以說，只要是“圈養(yǎng)”的海參，幾無幸免。
 
　　業(yè)內(nèi)人士表示，當水溫持續(xù)超過32℃時，海參就會出現(xiàn)化皮死亡的現(xiàn)象，一些近海的小蝦圈參池，由于水淺，高溫環(huán)境下，上下層水已經(jīng)通溫，海參很難存活。
 
　　規(guī)?；B(yǎng)殖基本未受影響
 
　　和普通的中小養(yǎng)殖戶相比，此次高溫對大中型的海參養(yǎng)殖企業(yè)以及深海底播的海參卻基本未產(chǎn)生太大影響。
 
　　位于大連皮口附近的一個大型海參養(yǎng)殖企業(yè)負責(zé)人表示“這里一切正常。小規(guī)模養(yǎng)殖的技術(shù)簡陋，受天氣條件影響大，大型的工業(yè)化養(yǎng)殖基本未受影響。公司是工業(yè)化養(yǎng)殖，在技術(shù)上和普通的個體戶還不一樣，水深等養(yǎng)殖條件也不一樣。”
 
　　業(yè)內(nèi)人士表示，個人養(yǎng)殖戶由于水淺，又是圍起來的，緊鄰陸地，陸地溫度又升的較快，養(yǎng)殖圈是個小水洼，流動性也差，所以受影響較大。而遠離陸地的深海、遠海所受影響就沒有那么大了。
 
　　2013年山東海參減產(chǎn)事件
 
　　2013年山東海參養(yǎng)殖業(yè)也曾發(fā)生類似高溫減產(chǎn)事件。2013年夏季，連續(xù)高溫等天氣侵襲山東海域，萊州、東營等地區(qū)頻頻出現(xiàn)養(yǎng)殖海參大規(guī)模死亡的現(xiàn)象，養(yǎng)殖戶損失慘重。海參大面積死亡的原因就是受降雨和高溫天氣的影響，導(dǎo)致海水鹽分下降，溫度升高，從而使海參生存環(huán)境發(fā)生較大變化，造成了海參的死亡。據(jù)悉，受此輪災(zāi)情影響，山東全省蝦池海參減產(chǎn)50%，由此帶來全省海參減產(chǎn)35%左右。
 
　　據(jù)了解，海參養(yǎng)殖主要分四種方式：蝦池、圍堰、底播和浮筏。蝦池養(yǎng)殖海水深度較淺，易受高溫影響。據(jù)悉，受2013年海參高溫下大量死亡的影響,山東大部分池塘養(yǎng)殖戶都已轉(zhuǎn)型，以底播海參為主,規(guī)模化養(yǎng)殖，也就是大家經(jīng)常說的海洋牧場。今年的高溫天氣山東海參養(yǎng)殖并未受到影響。
 
　　可以看到，水產(chǎn)養(yǎng)殖產(chǎn)業(yè)和農(nóng)業(yè)種植業(yè)一樣，要走出“靠天吃飯”的困境，規(guī)?；⒐I(yè)化養(yǎng)殖才是出路，同時政府也應(yīng)建立保護機制以及養(yǎng)殖戶要提高投保意識，以此減少自然災(zāi)害帶來的損失。
 
　　本文由中國農(nóng)機網(wǎng)整理發(fā)布，資料來源：中國網(wǎng)財經(jīng)、中國水產(chǎn)養(yǎng)殖網(wǎng)，如有侵權(quán)或異議請聯(lián)系我們。

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