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Salmon in the Classroom

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Colin Brown

on 6 November 2014

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Transcript of Salmon in the Classroom

The Salmon at Fruitport Middle School
in conjunction with the Michigan DNR's Salmon in the Classroom Program...
and funding provided by the Muskegon Sportsfishing Association.
is a conservation project for students...
So what is the program all about?
The males are separated from the females.
"The Egg Take"
The goal of raising salmon in the classroom is...
to help maintain Chinook Salmon populations in Lake Michigan.
We are given eggs from the Michigan Department of Natural Resources (MDNR) to raise in a classroom tank during the beginning life stages of the fish
During their stay in our classroom, students will be responsible for feeding, cleaning, and daily checks of the water quality.
The salmon are released in the spring as they mature to smolt and begin to swim downstream towards the big lake.
By raising Chinook salmon, Fruitport students gain first hand experience with a Michigan population, and learn what it takes to conserve a declining species.
Eggs are taken by forcing compressed air into the egg cavity.
Chinook salmon return to their natal stream to spawn. A weir blocks the stream and forces the salmon into a fish ladder and into holding pens.
This is the fish ladder
The holding pens are emptied and the salmon are cornered and lifted from the water onto a table where they are killed.
Before the eggs can be fertilized, the adults are checked for disease. If a disease were to enter the hatchery, it could decimate the stocking program.
If both, the male and female are disease free, the eggs and milk are mixed to begin the fertilization process. Green eggs, which are very fragile, can be picked up directly from the weir.
Eyed up eggs are more developed and been cared for at the hatchery. A fungicide has been applied to prevent unexpected deaths. These eggs can be picked up in November. This is a picture of the egg trays at the hatchery.
How do the eggs end up at FMS?
How do we care for them?
The Release
The Class Data Sheet
Growth and Development
but most importantly, students learn that they can make a differnce!
The Tank
The Filter
The Chiller
The Permit
Students check the ammonia and acidity (pH) levels every day.
If ammonia is present, or pH is constantly falling outside of a safe range they eggs could die.
Eyed-up Eggs and Sac Fry
A Heartbeat
Developing Fins
Swim-up Fry
Full transcript