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Titolo:
ACCUMULATION OF BUTYLTIN COMPOUNDS IN RISSOS DOLPHIN (GRAMPUS-GRISEUS) FROM THE PACIFIC COAST OF JAPAN - COMPARISON WITH ORGANOCHLORINE RESIDUE PATTERN
Autore:
KIM GB; TANABE S; IWAKIRI R; TATSUKAWA R; AMANO M; MIYAZAKI N; TANAKA H;
Indirizzi:
EHIME UNIV,DEPT ENVIRONM CONSERVAT,TARUMI 3-5-7 MATSUYAMA EHIME 790 JAPAN EHIME UNIV,DEPT ENVIRONM CONSERVAT MATSUYAMA EHIME 790 JAPAN UNIV TOKYO,OCEAN RES INST,OTSUCHI MARINE RES CTR OTSUCHI IWATE 02811 JAPAN NATL RES INST FAR SEAS FISHERIES SHIMIZU SHIZUOKA 424 JAPAN
Titolo Testata:
Environmental science & technology
fascicolo: 8, volume: 30, anno: 1996,
pagine: 2620 - 2625
SICI:
0013-936X(1996)30:8<2620:AOBCIR>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
MARINE MAMMALS; UNITED-STATES; TRIBUTYLTIN CONTAMINATION; ORGANOTIN COMPOUNDS; SMALL CETACEANS; WEST COASTS; TOXICITY; IMPOSEX; BLUBBER; PROFILE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
47
Recensione:
Indirizzi per estratti:
Citazione:
G.B. Kim et al., "ACCUMULATION OF BUTYLTIN COMPOUNDS IN RISSOS DOLPHIN (GRAMPUS-GRISEUS) FROM THE PACIFIC COAST OF JAPAN - COMPARISON WITH ORGANOCHLORINE RESIDUE PATTERN", Environmental science & technology, 30(8), 1996, pp. 2620-2625

Abstract

Concentrations of butyltins (BTs) in the liver and organochlorine compounds (OCs) in the blubber of Risso's dolphins collected off Taiji, Japan, in 1991 were determined. Mean and range concentrations (wet weight basis) of these compounds were 3.6 mu g/g (0.55-6.0 mu g/g) for BTs, 25 mu g/g (1.7-120 mu g/g) for PCBs, 17 mu g/g (0.45-77 mu g/g) for DDTs, 4.0 mu g/g (0.19-16 mu g/g) for CHLs, and 0.16 mu g/g (0.008-0.74 mu g/g) for HCHs. OCs concentrations increased with age in males in contrast to that in females, which showed a decreasing trend after maturity. On the other hand, no difference was observed in BT concentrations between male and female, which showed increasing levels until maturity (8-10 years) and then remained constant. It is suggested that, unlike OCs, BTs were less transferable to young ones in reproductive processes. Risso's dolphins showed higher biomagnification factor (about 6) than Steller sea lion (0.6), implying a slower excretion rate of BTs in cetaceans than in pinnipeds due to the lower degradation capacityof xenobiotics and the lack of physiological processes such as shedding of hair in cetaceans.

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Documento generato il 05/07/20 alle ore 12:32:09