Visit to a fish hatchery

Posted by on Sep 24, 2012 in Kids Blog | No Comments

The Couch Potato visited the Tonto Creek Fish Hatchery in Arizona to see how fish are raised.  Fish biologist, Larry Duhamell, showed us how they help the fish grow to be healthy. (A fish biologist studies fish and knows the way fish grow, what to feed them, and how to keep them healthy.)

Visit to a fish hatchery

Fish Biologist Larry Duhamell at Tonto Creek Fish Hatchery takes care of thousands of fish

The Fish Hatchery raises trout, which are brought to the hatchery as eggs or roe.  They are kept in tanks, also called raceways, with water. Once they hatch and have used up the nutrients  (food) left over from the egg, they are fed “granulites” (small pebbly pieces of food) of nutrients that contain many of the same vitamins children take!

Trout roe at fish hatchery

Before they become fish, trout roe arrive at the Fish Hatchery

Mr. Duhamell said one of the biggest dangers for fish is visitors who want to reach in the tank water.  The visitors have germs that can make the fish sick.  So, he hopes that people will not try to touch the fish, so they will stay healthy.  Children can buy granulites to throw in the water, so they can see the fish rush to eat the food.  Because there a thousands of fish in each tank, it gets very busy!

Hatched fish roe on their way to becoming trout

Trout fish roe hatched at the fish hatchery

The trout live in tanks, growing for over a year until they become big enough (about 9 inches) to be sent to places where people will try to catch them!  There are over 20 places in Arizona where the fish are sent.  Maybe some are swimming near you!

Trout living in a tank at the Tonto Creek Fish Hatchery

Trout living in a tank at the Tonto Creek Fish Hatchery