A catalogue of discrete calls of resident killer whales (Orcinus orca) from the Avacha Gulf of Kamchatka Peninsula [Russian]

摘要

A classification of killer whale calls recorded in the Avacha Gulf (Kamchatka Peninsula) in 1999-2003 is given. Most of the calls falls into discrete structural categories with higher or lower variability that allows to discern from one to seven subtypes. However, in the repertoire of whales, some highly aberrant variants of discrete call types and highly variable calls also occur. They might not be classified into some definite categories. Such differences in the sound structure appear to be the results of their variable functions.