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Fish Hatcheries

Fish Hatcheries. Savior or Scourge for Salmon?. How Hatcheries Work. Fertilizing sperm and eggs. Raising Fry. The Larger Life Stages. Out-planting to the Wild. Why Don’t Hatchery Fish Survive Very Well?. Feeding Time.

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Fish Hatcheries

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  1. Fish Hatcheries Savior or Scourge for Salmon? FREEING THE ELWA

  2. How Hatcheries Work FREEING THE ELWA

  3. Fertilizing sperm and eggs FREEING THE ELWA

  4. Raising Fry FREEING THE ELWA

  5. The Larger Life Stages FREEING THE ELWA

  6. Out-planting to the Wild FREEING THE ELWA

  7. Why Don’t Hatchery Fish Survive Very Well? Feeding Time Non-native Eastern Brook Trout are often released into Washington rivers Non-competitive behavior Non-native stocks FREEING THE ELWA

  8. Danger of Hatcheries Non-native stocks Swamping and Competition Disease Transmission FREEING THE ELWA

  9. The Arguments Some argue that hatcheries have saved salmon from going extinct. Some argue the over-use of hatcheries have caused wild salmon stocks to decline faster. Some argue hatcheries have uses that should be on a case-by-case basis, such as in saving critically endangered runs. FREEING THE ELWA

  10. This project was made possible in part by a grant from Washington’s National Park Fund. FREEING THE ELWA

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