Modeling population responses of Chinook and coho salmon to suspended sediment using a life history approach.
Theor Popul Biol
; 103: 71-83, 2015 Aug.
Article
en En
| MEDLINE
| ID: mdl-25963631
ABSTRACT
This study develops a quantitative framework for estimating the effects of extreme suspended-sediment events (SSC>25 mg L(-1)) on virtual populations of Chinook (Oncorhynchus tshawytscha) and coho (O. kisutch) salmon in a coastal watershed of British Columbia, Canada. We used a life history model coupled with a dose-response model to evaluate the populations' responses to a set of simulated suspended sediments scenarios. Our results indicate that a linear increase in SSC produces non-linear declining trajectories in both Chinook and coho populations, but this decline was more evident for Chinook salmon despite their shorter fresh-water residence. The model presented here can provide insights into SSC impacts on population responses of salmonids and potentially assist resource managers when planning conservation or remediation strategies.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Salmón
/
Sedimentos Geológicos
Tipo de estudio:
Health_economic_evaluation
/
Prognostic_studies
Límite:
Animals
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Theor Popul Biol
Año:
2015
Tipo del documento:
Article