Dynamics of mercury content in adult sichel (Pelecus cultratus L.) tissues from the Baltic Sea before and during spawning.
Mar Environ Res
; 148: 75-80, 2019 Jun.
Article
em En
| MEDLINE
| ID: mdl-31103850
ABSTRACT
This study compares the content of mercury in the muscles, liver, kidneys, gonads and gills of male and female individuals of sichel (Pelecus cultratus). Moreover, the trend of changes of mercury concentration before (March) and during (May) the spawning season was examined. Sichel brooders were caught in the Vistula Lagoon during commercial fishing. The mercury content in tissues was determined by atomic absorption using a Milestone DMA-80. The tests revealed a statistically higher mercury concentration in muscles, liver and gonads in male vs. female fish. Moreover, significantly higher mercury concentration was found in male and female fish caught during the spawning season (May) than in those caught before this season (March). Moreover, testes (0.011⯱â¯0.007â¯mgâ¯kg-1 w/w) were found to contain 12 times, and ovaries (0.004⯱â¯0.001â¯mgâ¯kg-1 w/w) - approx. 19 times less mercury than the muscular tissue of those same fish. This may suggest the existence of a protective barrier, defending future offspring against the transfer of toxic mercury from the parent body to gonads and gametes.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Cyprinidae
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Monitoramento Ambiental
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Produtos Pesqueiros
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Mercúrio
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Mar Environ Res
Ano de publicação:
2019
Tipo de documento:
Article