Researchers have launched a broad international survey of krill in the Southern Ocean to learn whether the fishing industry is leaving enough for this important crustacean9s natural predators, including whales and penguins. Six vessels will spend nearly 2 months mapping the abundance of krill in and around the Scotia Sea. Researchers will also test wave gliders and other tools for cheaper, more frequent surveys that could improve the management of the fishery. The survey itself won9t be able to reveal how the overall krill population in the Scotia Sea might have changed since the previous large survey, in 2000, but it could help confirm whether current fishing limits are precautionary enough.

中文翻译：

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船队对南极磷虾进行大规模调查

研究人员对南大洋的磷虾进行了一项广泛的国际调查，以了解渔业是否为这种重要的甲壳类动物的天敌，包括鲸鱼和企鹅留下了足够的资源。六艘船将花费近 2 个月的时间绘制斯科舍海及其周边地区磷虾丰度的地图。研究人员还将测试波浪滑翔机和其他工具，以进行更便宜、更频繁的调查，从而改善渔业管理。调查本身无法揭示自 2000 年上一次大型调查以来，斯科舍海的总体磷虾种群可能发生了怎样的变化，但它可以帮助确认当前的捕捞限制是否足够预防。