Whale sightings during POLARSTERN cruise PS112 (ANT-XXXIII/3)

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....极地海洋中的鲸类分布与种群丰度相关数据相当匮乏，原因在于实施标准调查方法——线样调查（line-transect surveys）——既极具挑战性，又成本高昂。