Gas Chromatographic Analysis of External Oil and Blackish Liquid Contents of Digestive Organs of Rhinoceros Auklets (Cerorhinca monocerata) in the Japan Sea.

The impact of oil pollution on seabirds has been widely reported in the ornithological literature. We reviewed the worldwide mortality of seabirds resulting from oil spills occurring from the 1960s to the present. Oil spills were classified as either 1) accidental, or 2) chronic. Among accidental oil spills from ships, oil terminals or pipelines, oil spills from ships were the commonest, with 43 events. Following the increasing use of supertankers for oil delivery, the spill volume from recent accidental spills sometimes outweighs the total annual spill volumes recorded during the 1970s. The spill volume of an event is only weakly correlated with the degree of impact on seabirds, as has previously been reported, because depending on the time of the year and the location, even a small amount of oil can have a great impact on seabirds, as was the case along the Norwegian coast in 1979. A few studies have estimated the total numbers of seabirds dying by taking into account the proportion of carcasses that sink, and the persistence rate of carcasses along coasts. Many studies have claimed that determining the impact of oil spills on seabird populations is fraught with difficulties, unless information on pre-spill status is available for targeted populations. Sources of chronic oil pollution include the discharge or dumping of oil polluted water or waste oils from ships, oil tanks or pipelines. Although chronic oil pollution has

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Seabirds Affected by the Oil Pollution in the Japan Sea in January 1986.

Sato¹

1999

Journal of the Yamashina Institute for Ornithology

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In January 1986, an oil spill occurred in the Japan Sea. The oil spread 400km along the coast from Shimane Prefecture to Fukui Prefecture. The spill affected a large population of migrating seabirds in Shimane and Tottori prefectures. Among the 1,761 seabirds mostly counted dead in Shimane Prefecture during late January 1986, about 93.5% were Alcidae. The species most seriously affected was the Rhinoceros Auklet Cerorhinca monocerata, with 1,326 (75.3%) recorded. The second most seriously affected were Synthliboramphus spp., with 320 (18.2%) victims. Twelve ringed Cerorhinca monocerata were affected, 11 of these had been ringed on Teuri Island, in the northern part of the Japan Sea, off Hokkaido, and one originated from Ashi Island in the Pacific Ocean off northern Honshu.

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Gas Chromatographic Analysis of External Oil and Blackish Liquid Contents of Digestive Organs of Rhinoceros Auklets (Cerorhinca monocerata) in the Japan Sea.

Abstract: Abstract. We analyzed 44 Rhinoceros

Cited by 4 publications

References 17 publications

Nutritional Status of Dead Oiled Rhinoceros Auklets (Cerorhinca monocerata) in the Southern Japan Sea

Nutritional Status of Dead Oiled Rhinoceros Auklets (Cerorhinca monocerata) in the Southern Japan Sea

The Past and Present Impact of Oil Pollution on Seabird Mortality World-wide.

Seabirds Affected by the Oil Pollution in the Japan Sea in January 1986.

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