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Resident and transient-type killer whales, Orcinus orca, in southeast Kamchatka, Russiaстатья
- Авторы: Burdin A.M., Hoyt E., Sato H., Tarasyan K., Filatova O.A.
- Сборник: IWC Scientific Committee
- Серия: SC/56/SM15
- Год издания: 2004
- Место издания: International Whaling Commission
- Первая страница: 1
- Последняя страница: 3
- Аннотация: Killer whales, Orcinus orca, were studied in Avacha Gulf, southeast Kamchatka, in the Russian Far East (RFE) from 1999-2003 using land- and boat-based photo-identification and sound recordings. A total of 121 photographically identified killer whales in the area have been determined to be residents based on (1) site fidelity with frequent re-sightings, (2) observations of predation on fish and (3) the recording of stable, resident-type dialects. The study has also documented transient-type marine mammal hunting killer whales in the RFE through morphological observations and biopsy documentation of contaminant levels and genetic characteristics. On 26 September 2003, some 32-37 resident-type killer whales were captured by the Utrish Dolphinarium Ltd, six of which had been photo-identified in previous years. One young female drowned in the nets; another young female was removed and sent to the Utrish Dolphinarium where she subsequently died. No more captures should be permitted until more is known about the population structure and population sizes of RFE killer whales.
- Добавил в систему: Филатова Ольга Александровна