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UncertaintyCan predation rates be reduced when flows are high or when fish move past bird colonies relatively quickly? The implication is that mortalities might be accentuated when flows are low or travel times reduced. Similarly, increased mortality might also result through predation by northern pikeminnow and other fishes in Columbia and Snake River reservoirs.
ThemePredation
SubthemeManagement - hydrosystem operations
Sources ISAB 2010-2: Review of NOAA 2010 Low Flow Fish Transport
Criticality Level Medium

last updated: Oct 15, 2015