Trout at Transition 2013-2014

The Mouse WaterBy 2B2 and 2B3

LAND USE & GEOGRAPHY

While we were there, we tested:The variety of fish, and

the size of said fish.Checking the depth of the river.

Looking at the composition of the riverbed.

The variety of invertebrates, by kick sampling.

The speed (velocity) of the river, using oranges.

Investigation

WE FOUND FROM INVERTEBRATE DATA

THAT OUR WATER WAS A2 – GOOD BUT IT WAS LACKING IN FISH.

Trout fishingThis is a picture of the fishing

Here’s another picture

Substrate SizeThe substrate size was far to small there was not a variation of different types of substrate. Which means there is not enough habitat for young trout to live and for trout to hide.

Why the substrate is so smallThe Substrate is so small because there is no meanders so the water flows fast taking large stone with it and leaving mostly just sand.

MeandersThe Mouse Water is mostly straight and some

points meander.Quite a while ago the Mouse Water was

straightened so less meanders were there.This happened so that farmers had more

useful land to grow crops.So there aren’t many meanders.

Depth of the river…Overlooking The Work

Depth 1 = 31cmDepth 2 = 31cmDepth 3 = 31cmThis proves that the river is fairly straight and

that the large rocks have been dragged back because the river is straight and so it is faster making it easier to carry away rocks and leave the small stones and so on, creating sand.

Shape of the Riverwe tossed

oranges into the river to find the velocity.

The Mouse in ParticularThere was NOT many plants on the river

banks, so the land could be easily eroded.This could, in turn, cause the land to fall in

the river, making it massively dirty.There were no trees nearby, meaning the fish

had no shade to cool down.There was some riverweed, which is a good

sign.

This is what a perfect river should look like……

How to Solve the Problem

Deepen it in areas and add rocks

For fish to live in …

…and lay eggs.

Plant trees and add fencesFences can keep livestock away from the river.

Vegetation along the riverbank can strengthen it.Roots and branches can provide habitat for fry.

Create meanders For fish to stay in and to calm the water

Our Photos

Our Photos

Mouse Photos