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TROUT IN THE CLASSROOM - TIC
Our participation in the Trout in the Classroom program was made possible through grant funding
(Sport Fishing and Aquatic Resource Education Grant, PA Council of Trout Unlimited, and
PA Department of Education), brook trout eggs, food and technical assistance provided by
PA Council of Trout Unlimited and PA Fish and Boat Commission.
Special thanks to our local Ken Sink Chapter of Trout Unlimited for their participation and support.
The Trout Eggs should arrive in November.
Scroll Down to View the TROUT CAM at Homer-Center High School
Trout in the Classroom (TIC) is a conservation-oriented environmental education program. Through the school year, students raise trout from eggs to fry and then release them into approved cold water streams and lakes. This act of raising, monitoring, and caring for young trout fosters a conservation ethic within participating students and promotes an understanding of their shared water resources.
The Trout Eggs arrive early in November.
During this stage of development, the aquarium is covered to protect the eggs from sunlight.
Females select a location for their nest, called a “redd”. Streams that have areas with gravel bottoms and a steady water flow are ideal. An adult brook trout can lay anywhere from 500 - 1000 eggs depending on her size, health and the water quality. Once the “redd” has been prepared, a male brook trout will swim up beside the female while she is laying the eggs and fertilize them as they sink to the bottom of the “redd” that was created. Once the eggs are fertilized, the female will use her tail and body to gently cover the eggs with a thin layer of gravel for protection from predators and sunlight. As the fertilized eggs develop, the steady flow of water provides oxygen to the eggs. Nutrition for the eggs comes from the yolk within the egg. Temperatures must stay between 35 degrees Fahrenheit and 52 degree Fahrenheit. In nature 1-2% (10 to 20) of the 500-1000 eggs will survive to spawning age depending on the health of the watershed, food availability and stamina of the trout.
Sac Fry (or Alevin):
Newly hatched trout, called sac fry or alevins, are still attached to their yolk sac, which they use as a food source. After the yolk sac is absorbed, trout begin to swim up in search of food.
When the eggs hatch, the alevins stay nestled at the bottom of the breeding net. They will remain there until they fully consume their yolk sacs. At this point they begin to swim up to the surface in search of food. After they begin to swim up, we will lower the breeding net and let those that are ready swim out of the net and into the aquarium. This is the stage at which we begin to feed the trout.
Before the Eggs Arrive:
Link to Video - Collection and Fertilization of Brook Trout Eggs
Link to video - Preparation of Brook Trout Eggs
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