Relative importance of wetland composition on delta carrying capacity for juvenile salmonids

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Delta carrying capacity is dependent on continuous and diverse wetlands across the salinity gradient.

Economic and social tradeoffs or physiographic processes may make it easier to restore some delta wetland types that other. Subsidence has reduced the potential for restoration of tidal swamp. The gradient of wetland types from fresh swamp to salt marsh are each used by different salmonid species over smoltification and outmigration. We don’t know whether wetland types are interchangeable among all species over the period of outmigration, or whether a shortage of a particular wetland type limits delta rearing capacity.

Delta Strategy Analysis


The uncertainties in how this topic affects delta restoration has resulted in its inclusion in the ESRP River Delta Adaptive Management Strategy. This three criteria analysis should build off the analysis above, and supports development of learning projects.

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