Wednesday, October 21, 2015

Debriefing with Dr. Jason Hentschel

Our young scientists would like to thank Dr. Jason Hentschel for visiting our class as we presented our river project findings for him.  Yes, that is Mrs. Hentschel's husband!

Tuesday, October 13, 2015

How to Seine

A seine is a type of fishing net held on opposite ends by two people while other people scare the fish into the net by scuffling their feet. Then with the command, "Scoop and lift!" the two holding the net scoop up the seine. The people who helped scare the fish then help hold the net up so the fish don’t fall out. Now you can see the reward of your hard work. You use different seines depending on the size of the fish you want to catch. If you want to catch smaller fish, you would use a smaller net, to catch bigger fish you would use a larger net. Using a larger net is much harder because it requires more work and more people.

Monday, October 12, 2015


Dragonfly nymph
Damslefly adult
A Macro-invertebrate is a big enough to see animal or insect without a backbone. Macro means a something big enough to see. Invertebrate means an animal or insect without a backbone. Macro-invertebrates are also known as; planaria, dragonfly  nymph, damselfly nymph, water penny, crayfish, dobsonfly larva, riffle beetle, ext. Nymph means a baby form of a insect. You might realize that there is a dragonfly  nymph, damsel fly nymph, dobsonfly nymph are macro-invertebrates that are flying when they grow up.  Dragonfly nymphs live in the water when they are a nymph, and when they become an adults they fly. Damselflies have the same kind of life.  A damselfly nymph looks kind of like the adult damselfly except they don't have wings.The damselflies look different than the the dragon fly when they are a both nymphs, but when a damselfly grows up it is hard to tell the difference. When they grow you can identify them by  knowing the damselflies land with their wings up and the dragonfly land with their wings to the side at a right angle of their body.
Macro invertebrates

Friday, October 9, 2015

species of fish

We went seining in the Stillwater River. We caught a lot of different kinds of species  of fish. With Tom Hissong we caught four out of the five families of fish. They were sunfish,minnows and shiners, perch and, suckers. The family we did not catch was catfish. They are hard to catch in the Stillwater River. These are the species we caught.









Thursday, October 8, 2015

Anatomy of the fish

Anatomy are different parts of human or animal's body. This are the anatomy of a fish. There are gill that help the fish breathe underwater. The caudal fin help the fish turn and not flipping over. There are more fins like: dorsal fins, pelvic fin, anal fin, pectoral fin. These are the body parts, the mouth, gill which help them breathe underwater, and the lateral line which is a nerve that sense predators around them. The Operculum is a flap that covers the gills. This is the anatomy of a fish.  Screenshot 2015-10-08 at 10.40.53 AM.png

Predators and prey

Predators are hunters and prey get hunted. For example Small mouth Bass eats crayfish so the Small mouth Bass is the predator and crayfish are prey  Usually bigger and stronger fish hunt smaller and weaker fish. Predators have techniques such as sneaking up on prey, jump out at prey, or swim as fast as they could to eat pray.   

Birds eat a lot of fish. Birds fly low and catch fish close to the surface. Ospreys they eat a lot of fish. Some species got extinct because of birds. That's why fish usually swim deep in the water.

Their fish that are camouflage it is called counter shading. On the top they are dark so birds or predators think they are a rock or the bottom. On the bottom they are light so predators think think they are part of the sky.

Some fish have special abilities such as camouflage and speed to escape from predators. Some fish don’t  have ability to escape and probably get eaten if they get lucky they might survive.  Learn more about predators and prey.

Thursday, September 17, 2015

River Order

    There are orders of rivers. A number one river is a tiny stream you can jump over or even step over! Two order one rivers make an order two river. You might be able to jump over an order two but you can't step over it. Two order two rivers make an order three river. You cannot step or jump over an order three river. Two order three rivers make an order four. The Stillwater river is an example of an order four river. The final order in the Stillwater River system is the order five river. Many rivers go beyond order 5. That is how river systems work.

This is an order two stream
This is the order