DOI 10.1007/s10661-007-9811-2 Distribution and abundance of western gray whales off northeastern Sakhalin Island, Russia, 2001–2003
Abstract In 2001–2003,>60,000 km of aerial surveys and 7,700 km of vessel surveys were conducted during June to November when critically endangered Korean–Okhotsk or western gray whales (Eschrichtius robustus) were present off the northeast coast of Sakhalin Island, Russia. Results of surveys in...
Main Authors: | , , , , , , |
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Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2006
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.356.9411 |
Summary: | Abstract In 2001–2003,>60,000 km of aerial surveys and 7,700 km of vessel surveys were conducted during June to November when critically endangered Korean–Okhotsk or western gray whales (Eschrichtius robustus) were present off the northeast coast of Sakhalin Island, Russia. Results of surveys in all years indicated gray whales occurred in predominantly two areas, (1) adjacent to Piltun Bay, and (2) offshore from Chayvo Bay, hereafter referred to as the Piltun and offshore feeding areas. In the Piltun feeding area, the majority of whales were observed in waters shallower |
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