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Fish Hatcheries Savior or Scourge for Salmon?
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How Hatcheries Work
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Fertilizing sperm and eggs
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Raising Fry
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The Larger Life Stages
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Out-planting to the Wild
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Why Don’t Hatchery Fish Survive Very Well? O Non-competitive behavior O Non-native stocks Feeding Time Non-native Eastern Brook Trout are often released into Washington rivers
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Danger of Hatcheries O Non-native stocks O Swamping and Competition O Disease Transmission
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The Arguments O Some argue that hatcheries have saved salmon from going extinct. O Some argue the over-use of hatcheries have caused wild salmon stocks to decline faster. O Some argue hatcheries have uses that should be on a case-by-case basis, such as in saving critically endangered runs.
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This project was made possible in part by a grant from Washington’s National Park Fund.
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