Whale sightings during POLARSTERN cruise ARK-XXIII/2
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Data on whale distribution and abundance in the polar oceans is rather sparse, as implementing the standard surveying method, line-transect surveys, is challenging and costly....
极地海洋中鲸类的分布与丰度数据较为匮乏，这是因为开展标准调查方法——线样调查法（line-transect surveys）——既极具挑战性，且成本不菲……
