南半球におけるシャチの群組成について

概要

論文の詳細を見る
To improve knowledge of school structure of killer whale, Orcinus orca (LINNAEUS, 1758), the composition of 18 schools (705 individuals in total) were analyzed from the sighting information obtained through a 57-day sighting survey in the Southern Ocean between 115°E and 160°W. The fundamental units of the school of killer whales are considered to be the single adult male, the adult female with calf, and other whales including the juvenile whale and/or the adult female without calf. An aggregation of schools seems to be formed by combination of several large schools, each of which has some unit schools.
国立科学博物館の論文