Trophic niche overlap between sympatric harbour seals (Phoca vitulina) and grey seals (Halichoerus grypus) at the southern limit of their European range (Eastern English Channel)

在欧洲分布范围的南部边界（英吉利海峡东部），同域分布的港海豹（Phoca vitulina）和灰海豹（Halichoerus grypus）之间的营养生态位重叠