Research: " Acoustic behavior Observed killer whale groups proved to be highly vocal, producing sounds during most of the recordings. These sounds included discrete and variable calls, whistles and echolocation in different proportions. We have created the catalog of discrete calls of Kamchatkan orcas. With the acoustic analysis of vocal repertoires of different killer whale groups, we revealed 8 resident pods occurring in Avacha Gulf from year to year. All these pods shared at least one discrete call type, which by definition means that all are members of the same clan (Ford 1991). We named this clan “Avacha clan”. "
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