Comparison of the prey of subadult grey seal males collected from four ICES subdivisions of the Baltic sea (27, 29, 30 and 32) indicated by gut morphological <i>i</i>.<i>e</i>. hard part (HP, mass %) and DNA (sequence %) prey proportions.

Comparison of the prey of subadult grey seal males collected from four ICES subdivisions of the Baltic sea (27, 29, 30 and 32) indicated by gut morphological i.e. hard part (HP, mass %) and DNA (sequence %) prey proportions.针对从波罗的海4个国际海洋勘探理事会（ICES）分区（编号27、29、30及32）采集的亚成年雄性灰海豹的猎物开展对比分析，分别采用肠道形态学法（即硬质组分法，HP，质量占比）与DNA测序法（序列占比）统计猎物组成占比。