Thyroid hormones as biomarkers in grey seals

Changes in grey seal ( Halichoerus grypus) serum thyroid hormones with age, sex and during lactation were investigated. Concentrations were related to polychlorinated biphenyl (PCB) uptake and exposure in pups and females. There was no effect of sex or stage of lactation on either free or total thyr...

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Bibliographic Details
Published in:Marine pollution bulletin 1998-06, Vol.36 (6), p.424-428
Main Authors: Hall, Ailsa J, Green, Nick J.L, Jones, Kevin C, Pomeroy, Paddy P, Harwood, John
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Fundamental and applied biological sciences. Psychology
Halichoerus grypus
Mammalia
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Summary:Changes in grey seal ( Halichoerus grypus) serum thyroid hormones with age, sex and during lactation were investigated. Concentrations were related to polychlorinated biphenyl (PCB) uptake and exposure in pups and females. There was no effect of sex or stage of lactation on either free or total thyroxine (T 4) and triiodothyronine (T 3), but significant age-related variability was seen. Pups had significantly higher concentrations of total T 4 than adults ( p
ISSN:0025-326X
1879-3363
DOI:10.1016/S0025-326X(97)00206-3