Anadromous Stocks Chapter 24 - PowerPoint PPT Presentation

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Anadromous Stocks Chapter 24

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Harvest Concerns Harvest Concerns Harvest Concerns Atlantic salmon American shad Rainbow trout or steelhead Mortality Homing problems * * * Title: – PowerPoint PPT presentation

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Title: Anadromous Stocks Chapter 24


1
Anadromous StocksChapter 24
2
Anadromous Fish
3
Atlantic Coast
Atlantic salmon
4
Atlantic Coast
5
Atlantic Coast
6
Atlantic Coast
American shad
7
Pacific Coast
  • Oncorhyncus

8
Pacific Coast
  • Oncorhyncus

9
Pacific Coast
  • Oncorhyncus

10
Pacific Coast
  • Oncorhyncus

11
Pacific Coast
  • Oncorhyncus

12
Pacific Coast
  • Oncorhyncus

Rainbow trout or steelhead
13
Habitat Concerns
  • Destruction of spawning nursery habitat
  • East - urban development, pollution
  • West - logging activities

14
Habitat Concerns
  • Dams - upstream and downstream migrants

15
Dams
16
Upstream - Fish Ladders
17
Fish Ladders
18
Fish Ladders
19
Downstream - Turbines
Mortality
20
Downstream - Turbines
21
Downstream - Turbines
Homing problems
22
Genetic Concerns
  • Potential loss of site-adapted characteristics
  • Potential mixing of stocks
  • Potential straying of stocks

23
Harvest Concerns
  • Who gets what when?

24
Harvest Concerns
25
Harvest Concerns
26
Harvest Concerns
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