Anadromous Stocks Chapter 24

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Presentation transcript:

Anadromous Stocks Chapter 24

Anadromous Fish

Atlantic Coast Atlantic salmon

Atlantic Coast

Atlantic Coast

Atlantic Coast American shad

Pacific Coast Oncorhyncus

Pacific Coast Oncorhyncus

Pacific Coast Oncorhyncus

Pacific Coast Oncorhyncus

Pacific Coast Oncorhyncus

Pacific Coast Oncorhyncus Rainbow trout or steelhead

Habitat Concerns Destruction of spawning & nursery habitat East - urban development, pollution West - logging activities

Habitat Concerns Dams - upstream and downstream migrants

Dams

Upstream - Fish Ladders

Fish Ladders

Fish Ladders

Downstream - Turbines Mortality

Downstream - Turbines

Downstream - Turbines Homing problems

Genetic Concerns Potential loss of site-adapted characteristics Potential mixing of stocks Potential straying of stocks

Harvest Concerns Who gets what when?

Harvest Concerns

Harvest Concerns

Harvest Concerns

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