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TROUT IN THE CLASSROOM

TROUT IN THE CLASSROOM. KWL Chart. Before you begin your research, list details in the first two columns. Fill in the last column after completing your research. What I Know What I Want to Know What I Learned (after completing your research). Glossary. Eyed egg

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TROUT IN THE CLASSROOM

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  1. TROUT IN THE CLASSROOM

  2. KWL Chart Before you begin your research, list details in the first two columns. Fill in the last column after completing your research. What I Know What I Want to Know What I Learned (after completing your research)

  3. Glossary • Eyed egg First noticeable stage of egg development.

  4. Glossary • Yolk sac Attached food supply for newly hatched fry (young fish.)

  5. Glossary • Alevin Young fish that still has the yolk sac attached.

  6. Glossary • Fry General term for young fish.

  7. Glossary • Spawn The release of eggs for fertilization in the water.

  8. Glossary • Redd Gravel nest dug by a female trout for the purpose of laying her eggs.

  9. Trout Life Cycle • Trout spawn in gravel stream bottoms. The female digs a redd with her body and deposits eggs. The eggs are covered with gravel. • The eggs develop and hatch into alevins. • Alevins remain in the gravel. They obtain nourishment from their yolk sacs.

  10. Trout Life Cycle • When the sacs are consumed, the tiny fish, called fry, swim out of the gravel to find food. They stay near the stream bank where the water is calmer until they grow bigger. • As they grow, they move to the main current of the stream. They feed on insects and small animals that live in or fall into the stream.

  11. Trout Life Cycle • Trout mature at age three and rarely live past the age of five. • Some trout may live in lakes, but often return to streams to spawn.

  12. Trout Journal As you observe the trout you will make sketches and record all your observations, thoughts and questions in your field journal. Questions: What do I see? What is the condition of the water in the tank? Temperature? Do I see anything that surprises me?

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