An Evaluation of Redd Counts as a Measure of Bull Trout Population Size and Trend
| Autor: | Paul M. Sankovich, Philip J. Howell |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
education.field_of_study
Ecology animal diseases Population size Population Management Monitoring Policy and Law Aquatic Science Biology Census biology.organism_classification Fish measurement Trout Salvelinus confluentus Abundance (ecology) Life history education Ecology Evolution Behavior and Systematics Demography |
| Zdroj: | North American Journal of Fisheries Management. 32:1-13 |
| ISSN: | 1548-8675 0275-5947 |
| Popis: | The use of redd counts to monitor abundance and trend of bull trout Salvelinus confluentus has been clouded by uncertainties concerning measurement error, life history variation, and correspondence of redd counts to adult population size. We compared census redd counts with population estimates of mature females for a migratory fluvial population of bull trout (primarily ≥ 300 mm fork length) and for a population of small ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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