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Steller Sea Lion Research:  Hypotheses for Population Decline

A1-4
Factor 3: Direct Anthropogenic Effects (A)

The following key questions related to factors causing or contributing to the decline of Steller sea lions are structured as follows: [Specific type of effect] [Reason for the decline] [Mechanism].

A1: Has subsistence hunting resulted in decreased survival of sea lions through direct mortality?

A2: Has intentional shooting resulted in decreased survival of sea lions through direct mortality?

A3: Have incidental fisheries takes resulted in decreased survival of sea lions through direct mortality?

A4: Have the residual effects of legal harvests resulted in decreased survival of sea lions through direct mortality?