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Titolo:
Comparison of mercury accumulation in antarctic minke whale collected in 1980-82 and 1984-86
Autore:
Watanabe, I; Yamamoto, Y; Honda, K; Fujise, Y; Kato, H; Tanabe, S; Tatsukawa, R;
Indirizzi:
Ehime Univ, Dept Environm Conservat, Matsuyama, Ehime 790, Japan Ehime Univ Matsuyama Ehime Japan 790 nservat, Matsuyama, Ehime 790, Japan MIURA Co Ltd, Matsuyama, Ehime 79926, Japan MIURA Co Ltd Matsuyama Ehime Japan 79926 d, Matsuyama, Ehime 79926, Japan Inst Cetacean Res, Tokyo 104, Japan Inst Cetacean Res Tokyo Japan 104Inst Cetacean Res, Tokyo 104, Japan Natl Res Inst Far Seas Fisheries, Shimizu, Shizuoka 424, Japan Natl Res Inst Far Seas Fisheries Shimizu Shizuoka Japan 424 ka 424, Japan Kochi Univ, Kochi 780, Japan Kochi Univ Kochi Japan 780Kochi Univ, Kochi 780, Japan
Titolo Testata:
NIPPON SUISAN GAKKAISHI
fascicolo: 1, volume: 64, anno: 1998,
pagine: 105 - 109
SICI:
0021-5392(199801)64:1<105:COMAIA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
JPN
Soggetto:
STENELLA-COERULEOALBA; HARBOR PORPOISES; STRIPED DOLPHIN; MARINE MAMMALS; HEAVY-METALS; SELENIUM; CONTAMINATION; SEALS; LIVER; POLLUTANTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Watanabe, I Ehime Univ, Dept Environm Conservat, Matsuyama, Ehime 790, Japan Ehime Univ Matsuyama Ehime Japan 790 suyama, Ehime 790, Japan
Citazione:
I. Watanabe et al., "Comparison of mercury accumulation in antarctic minke whale collected in 1980-82 and 1984-86", NIP SUIS G, 64(1), 1998, pp. 105-109

Abstract

Mercury concentrations were determined in the liver of Antarctic minke whale (Balaenoptera acutorostrata) collected during 1980-82 and 1984-86, and compared in view of age-dependent accumulation. No significant sexual and geographical variations were observed, while higher mercury concentrations were found in the Liver of Antarctic minke whales caught in the 1984-86 season rather than in 1980-82 by commercial whaling. Mercury concentration elevated with age until maturity and then revealed a steady state or slightly declined. However, the age showing maximum level of mercury was found to be older in 1984-86 than in 1980-82. This observation might be attributable to temporal changes in feeding amounts, resulting from disturbance of the Antarctic ecosystem such as uncontrolled management of whale resources in the past.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 04:46:38