The stage in the salmon life cycle when the salmon is ready to reproduce and is returning to where it was born
What is spawning adult?
The chemical coming off the tires.
What is 6PPD?
The fin on the back
What is the Dorsal fin?
What are producers?
Mr. Walker's volunteer passion for over a dozen years.
What is youth robotics?
The reason the salmon population declined drastically in the 1920s with the creation of this technology.
What is canning?
What is a dam?
The tail fin.
What is the caudal fin?
The source producers get their energy and growth.
What is the sun?
The age of Mr. Walker.
What is "Old enough to know better, and young enough not to care"?
What is population?
The use of canning caused the salmon population to decrease because of this.
What is overfishing?
The fins closest to the gills.
What are the pectoral fins?
Mr. Walker's college degree.
What is Mechanical Engineering?
The stage in the salmon life cycle when the young salmon start to lose their spots
What is parr?
A mammal (pinniped) that takes advantage of the dams and eats all the adult salmon going back to spawn.
What is the sea lion?
Fins closest to the middle. Bottom of fish, below the dorsal fin.
A consumer that eats only other animals/insects.
What is a carnivore?
Mr. Walker's birthday month.
What is summer?
The population number of a species that an ecosystem can support sustainably before the species begins to run out of food and resources.
What is carrying capacity?
A type of predator bird that is taking advantage of the hatchery cycle and is eating thousands of baby salmon when they are released.
What is cormorant or Caspian tern?
The fin that gets removed to tag whether it is a hatchery raised salmon.
What is the adipose fin?
When a toxin builds up in the food chain being passed on up the food chain to bigger and bigger consumers.
What is biomagnification?
Mr. Walker's favorite class period.
What is 5th period?