Multi-annual survey of health status disturbance in the Bilbao estuary (Bay of Biscay) based on sediment chemistry and juvenile sole (Solea spp.) histopathology.
Mar Pollut Bull
; 145: 126-137, 2019 Aug.
Article
en En
| MEDLINE
| ID: mdl-31590768
ABSTRACT
The Bilbao estuary (SE Bay of Biscay) is a recovering ecosystem whose sediments are still contaminated. They represent a potential risk for the biota including benthic and demersal species living in direct contact with the sediment. In this context, the present study aims to survey trends of the health status of the Bilbao estuary based on sediment chemistry and sole (Solea spp.) histopathology. Monitoring campaigns were carried out every autumn from 2011 to 2017 along the estuary. Contaminant levels were measured in sediments; liver, gills and gonads of juvenile fish were collected for histopathology. Overall, contaminant levels fluctuated throughout the years, with highest values recorded in the earlier years of the study period. Sole histopathology showed alterations of mild severity. Results permitted to assess the environmental health status of the Bilbao estuary during 7â¯years, although no clear temporal trend was detected. Longer-term monitoring programmes are necessary to confirm the ecosystem recovery.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Peces Planos
/
Sedimentos Geológicos
Límite:
Animals
País como asunto:
Europa
Idioma:
En
Año:
2019
Tipo del documento:
Article