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UncertaintyDo egg-to-smolt survival problems related to habitat availability limit the expansion of anadromous salmonids more than other sources of mortality? Empirical information describing cause and effect relationships influencing abundance in Columbia River salmonid populations are needed.
ThemePopulation structure and diversity
SubthemeStatus and trends - limiting factors
Sources SRG 93-3: Critical Uncertainties in the Program
Criticality Level High

last updated: Jan 27, 2016