Article (Scientific journals)
Relationships between vitamin A and PCBs in grey seal mothers and pups during lactation
Vanden Berghe, Marie; Mat, Audrey; Arriola, Aline et al.
2010In Environmental Pollution, 158 (5), p. 1570-1575
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Keywords :
Blubber; Grey seal; Lactation; PCBs; Vitamin A
Abstract :
[en] A previous study has shown a simultaneous increase of vitamin A and PCBs in grey seal (Halichoerus grypus) milk at late lactation (Debier et al., 2004). Here we sought to understand this unexpected relationship by comparing the dynamics of vitamin A and PCBs in the different tissue compartments of transfer. Lactating grey seals and their pups were sampled longitudinally in Scotland during the 2006 breeding season. As blubber reserves decreased, concentrations of vitamin A and PCBs increased during lactation in the inner layer of maternal blubber. A concomitant rise was observed in milk and consequently in the serum of suckling pups. The similar dynamics of vitamin A and PCBs in milk and inner blubber suggest a common mechanism of mobilisation from maternal body stores and transfer into the milk. A panel data analysis highlighted a negative impact of PCBs in milk and pup serum on vitamin A status in pup serum. © 2009 Elsevier Ltd. All rights reserved.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Vanden Berghe, Marie
Mat, Audrey
Arriola, Aline
Polain, Stéphanie ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Ecologie animale et écotoxicologie
Stekke, Valérie
Thomé, Jean-Pierre ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Ecologie animale et écotoxicologie
Gaspart, Frédéric
Pomeroy, Paddy P
Larondelle, Yvan
Debier, Cathy
Language :
English
Title :
Relationships between vitamin A and PCBs in grey seal mothers and pups during lactation
Publication date :
May 2010
Journal title :
Environmental Pollution
ISSN :
0269-7491
eISSN :
1873-6424
Publisher :
Elsevier, United Kingdom
Volume :
158
Issue :
5
Pages :
1570-1575
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 September 2012

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