Bivalve population health: multistress to identify hot spots.
Mar Pollut Bull
; 60(8): 1307-18, 2010 Aug.
Article
em En
| MEDLINE
| ID: mdl-20394951
ABSTRACT
This study investigated some stress (metals, parasites) and response (immunity, metallothionein) factors in two cockle and two Manila clam populations. Data from eight seasons were averaged to obtain global baseline values. Stress/response characteristics of each population were compared to population health status that was determined through population dynamics parameters. Four different scenarios were discussed (1) a lightly stressed cockle population with correct population health but with a risk of deterioration (hot spot); (2) a lightly stressed introduced cockle population threatened of extinction. In this case ecological factors were suspected; (3) a moderately stressed clam population with moderate adaptative response. The population was sustainable but the level of stress should not increase (hotspot); and (4) a stressed clam population and unfavourable ecological conditions preventing clam settlement. This monitoring highlighted that the discrepancy between population health and stress levels could be due to insufficient response by bivalves and/or by unfavourable ecological factors.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estresse Fisiológico
/
Poluentes da Água
/
Monitoramento Ambiental
/
Bivalves
Tipo de estudo:
Prognostic_studies
/
Screening_studies
Aspecto:
Patient_preference
Limite:
Animals
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
França