Behavioural responses of western gray whales to a 4-D seismic survey off northeastern Sakhalin Island, Russia
نویسندگان
چکیده
منابع مشابه
Status of western gray whales off northeastern Sakhalin Island, Russia, in 2008
A collaborative Russia-U.S. research program on western gray whales (Eschrichtius robustus) summering off northeastern Sakhalin Island, Russia, has been ongoing since 1995 and has produced important information on the present day conservation status of this critically endangered population. This paper reviews findings from 2008 research activities and combines such with data from previous years...
متن کاملDistribution and abundance of western gray whales off northeastern Sakhalin Island, Russia, 2001’003
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) off...
متن کاملFeeding of western gray whales during a seismic survey near Sakhalin Island, Russia
Exxon Neftegas Limited, as operator of the Sakhalin-1 consortium, is developing oil and gas reserves on the continental shelf off northeast Sakhalin Island, Russia. DalMorNefteGeofizika (DMNG) on behalf of the Sakhalin-1 consortium conducted a 3-D seismic survey of the Odoptu license area during 17 August-9 September 2001. A portion of the primary feeding area of the endangered western gray wha...
متن کاملInfluence of seismic surveys on western gray whales off Sakhalin Island, Russia in 2001
Western gray whales (Eschrichtius robustus) aggregate off the northeastern coast of Sakhalin Island, Russia during summer-autumn to feed on benthic and near-benthic prey. During summer 2001, 3D seismic surveys were conducted during a six-week period in known gray whale foraging areas off Sakhalin Island. To test the hypothesis that the distribution of gray whales on the feeding ground would shi...
متن کاملSeasonal and annual variation in body condition of western gray whales off northeastern Sakhalin Island, Russia
The western gray whale population (Eschrichtius robustus) is critically endangered and its potential for recovery is uncertain. Along with other natural and anthropogenic threats, western gray whales are susceptible to nutritional stress, known from regular observations of individual whales in compromised body condition. Thus, the ability to visually quantify the relative body condition of free...
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ژورنال
عنوان ژورنال: Endangered Species Research
سال: 2016
ISSN: 1863-5407,1613-4796
DOI: 10.3354/esr00713