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新华社伦敦8月15日电(记者张家伟)随着全球人口增长,食物需求也不断上升。一项新研究说,全球海洋水产养殖业还有很大开发潜力,大多数沿海国家能实现远高于当前的产量。
一个国际研究小组在英国《自然·生态学与进化》杂志上报告说,他们基于大量有关海洋环境以及180种鱼类和贝类水产生物的数据,梳理了全球不同地区的水产养殖潜力。
报告认为,全球有包括印度尼西亚、肯尼亚以及斐济在内的多个水产养殖“热点地区”,这些地区拥有适合水产养殖的大片海域,如果充分利用,每年可出产高达150亿吨的鱼类,这超过了当前全球海鲜消耗量的100倍。
这项研究说,尽管全球已有挪威和中国这样的水产养殖大国,但美国等国家在这方面的潜力仍有待挖掘。据估算,美国只需利用其专属经济区海域的0.01%就能养殖出足够多的水产品来满足本国需求。
研究人员认为,即便仅仅发挥全球水产养殖最活跃区域的潜力,理论上也能获得当前全球通过海洋捕捞获取的产量,但占用的地方比全球海洋表面积的1%还少。
报告作者之一、英国帝国理工学院教授本·哈尔彭说,海洋水产养殖能够帮助保证未来有稳定的食物供应,还能促进经济增长。
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