日前,，發(fā)表在在線出版的《自然—氣候變化》期刊上的一項(xiàng)研究"Climate change impacts on the biophysics and economics of world fisheries"證實(shí),，世界范圍內(nèi)海洋漁業(yè)經(jīng)濟(jì)損失的持續(xù)增加可能與氣候變化有關(guān)。
在20世紀(jì),，氣候變化改變了海洋環(huán)境,，海洋變得更暖和、分層更多,、酸性增加,。最近的研究顯示,，這些變化影響了魚(yú)群的生產(chǎn)和分布。因魚(yú)群產(chǎn)出量降低和分布變化所帶來(lái)的經(jīng)濟(jì)后果非常嚴(yán)重,，最終會(huì)導(dǎo)致世界幾百萬(wàn)人口收入減少,、營(yíng)養(yǎng)不良。
RashidSumaila和同事合作,，發(fā)現(xiàn)了因氣候變化所導(dǎo)致的海洋生態(tài)系統(tǒng)生物物理變化的證據(jù),，分析了這些變化對(duì)不同國(guó)家漁業(yè)收入和漁業(yè)成本的潛在影響。比如,，1997~1998年間因厄爾尼諾氣候現(xiàn)象導(dǎo)致了海洋表面溫度變化,，秘魯開(kāi)放海洋漁業(yè)的捕獲量減少，經(jīng)濟(jì)損失超過(guò)2600萬(wàn)美元,。他們呼吁對(duì)氣候變化下的漁業(yè)管理制度實(shí)施更多的研究,，并考慮采取適當(dāng)措施適應(yīng)這種變化，比如資助限制漁業(yè),、限制漁具和生計(jì)多樣化的項(xiàng)目,。（生物谷bioon.com）
doi:10.1038/nclimate1301
PMC:
PMID:
Climate change impacts on the biophysics and economics of world fisheries
U. Rashid Sumaila, William W. L. Cheung, Vicky W. Y. Lam, Daniel Pauly & Samuel Herrick
Global marine fisheries are underperforming economically because of overfishing, pollution and habitat degradation. Added to these threats is the looming challenge of climate change. Observations, experiments and simulation models show that climate change would result in changes in primary productivity, shifts in distribution and changes in the potential yield of exploited marine species, resulting in impacts on the economics of fisheries worldwide. Despite the gaps in understanding climate change effects on fisheries, there is sufficient scientific information that highlights the need to implement climate change mitigation and adaptation policies to minimize impacts on fisheries.
