What is the largest naturally occurring body of fresh water between the Mississippi River and the Pacific Ocean? How many fish are there in this lake? These are some of the questions answered at this station.
Experts from the Montana Department of Fish, Wildlife and Parks explore Trumbull Creek from a fishy point of view. They teach about what is below the surface of the water in the fish’s world. They identify fish and a fish’s food – the bugs. They let you touch a fish. They even let you see Trumbull Creek form a fish’s point of view using an underwater viewer shown in the picture on the right.
If you visit this station you will find out what the forest provides for the streams and the fish that live there.
We learned that fish bury their eggs in a streambed by flailing the streambed with their tail. They lay their eggs and the male fertilizes them. The eggs are slightly heavier than the water and kept down in the redd by the swirling current.
Fish have three different life history patterns in northwest Montana. Resident fish live their entire lives in a short section of a stream . The second type of fish is fluvial fish. They are born in small creeks, but swim downstream to a larger sized creek or river. The third type of fish are born in large streams and then swim down stream in the larger rivers to a lake, like Flathead Lake, where they feed and grow for one to four years . These fish are known as adfluvial fish. Adfluvial fish reach larger sizes than resident fish.
Flathead Lake is the answer to the first question. Visit next year’s Expo to learn about the second question.