Modeling population responses of Chinook and coho salmon to suspended sediment using a life history approach
| Autor: | Erland A. MacIsaac, Antonio Velez-Espino, Duncan Knowler, Andrew B. Cooper, H. Andres Araujo |
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| Rok vydání: | 2015 |
| Předmět: |
Geologic Sediments
Life Cycle Stages endocrine system Chinook wind education.field_of_study Watershed British Columbia biology Ecology Reproduction Population Sediment biology.organism_classification Fishery Salmon Animals Environmental science Oncorhynchus 14. Life underwater Life history education Monte Carlo Method Ecology Evolution Behavior and Systematics |
| Zdroj: | Theoretical Population Biology. 103:71-83 |
| ISSN: | 0040-5809 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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