Anadromous Stocks Chapter 24

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Anadromous StocksChapter 24
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Anadromous Fish
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Atlantic Coast
Atlantic salmon
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Atlantic Coast
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Atlantic Coast
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Atlantic Coast
American shad
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Pacific Coast

• Oncorhyncus

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Pacific Coast

• Oncorhyncus

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Pacific Coast

• Oncorhyncus

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Pacific Coast

• Oncorhyncus

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Pacific Coast

• Oncorhyncus

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Pacific Coast

• Oncorhyncus

Rainbow trout or steelhead
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Habitat Concerns

• Destruction of spawning nursery habitat
• East - urban development, pollution
• West - logging activities

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Habitat Concerns

• Dams - upstream and downstream migrants

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Dams
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Upstream - Fish Ladders
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Fish Ladders
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Fish Ladders
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Downstream - Turbines
Mortality
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Downstream - Turbines
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Downstream - Turbines
Homing problems
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Genetic Concerns

• Potential loss of site-adapted characteristics
• Potential mixing of stocks
• Potential straying of stocks

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Harvest Concerns

• Who gets what when?

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Harvest Concerns
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Harvest Concerns
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Harvest Concerns