Denmark is a very small country, and the country is situated in Northern Europe closed to Sweden and Norway. Denmark consists of three regions. Sjælland, Fyn and Jylland, and we live on Sjælland.
We have examined Tissø, because we want to find some animals and plants.
Tissø is the fourth largest lake in Denmark
Tissø is about 12,3 km², and it
The lake is characterize by big
changes in of the water level.
The large meadows and the reed vegetation is often covered with water in spring and it is dry in summer. In summer and in spring is the water so low, that the coast consist of sand and rook.
The east side is dry, and with some interesting vegetation.
By the lake Tissø is a narrow land border between the highway and the lake, and there lives the birds who don't want to be disturbed. From here it continue a preserved area to the lake on south to Hallenslev.
It has become a Game preserve from 1. September
The preserve include decisions by chase and traffic. The preserve is in all 670 ha , hence 60 ha farm land .
Chase at birds at the water is that principal rule disallowed.
A few people are allowed to hunt after special rules
W ind surfing and sailing by motor boat by more loudly speed than 3 knob is disallowed.
Fishing is because of breed birds disallowed from 1. April to 15. July at
Because of the animals the public can not sail or fish at that part of the lake, that implied inside 100 meter from reed forest.
Voyage by motor boat or engine can only be effected by leave from Vestsjællands Counties.
Examining earth tests
In the group we have made three tests from the earth in the lake and on the ground.
From the lake to the middle zone and to the wood zone.
At our school we have examined earth tests looking for water, organic material and we have measured the ph- value.
Water in the earth
Water is necessary to the plants. Water is a part of the photosynthesis and is also needed when the nutrient salt is transported around in the different parts of the plant.
Water in %
You weigh out the earth and put it in a heating cupboards. When it is dry you weigh out the earth again.
Water (g)= wet earth (g) minus dry earth (g)
Water -%= water (g) multiply 100 : dry earth.
Deep wood :
pH-value. 7.0 neutral
Medium to low.
Nitrate test: Medium to low
pH-value 7.5 basics
Tests middle zone
Deep middle zone
pH-value 9 basic
Phosphorus test: low
Nitrate test : low
Surface middle zone
pH-value 9 basic
Phosphorus test: low/ medium
Nitrate test: medium
Earth tests by the lake/ in the wood
by the lake
PH-value: 7.0 neutral
Phosphorus test: low
Nitrate test : low
in the wood
PH-value: 7.5 basic
Phosphorus test: Medium
Nitrate test: low/ Medium
The Perch – the fish with stripe
The perch is hunting most at det bottom.
The perch are probably one off the first fish you meet when you start fishing. Most people, who is fishing near a lake or stream, have tried to catch a perch. It is a greedy hunter, there easy are falling by the angler bait. Moreover is it a highly usual fish to Denmark, where the large noted reside to all notices and stream .
The pike – the big hunter.
The pike is one of our greatly fresh water fish and reside numerous to large noted all our lakes and stream.
They can be weigh by 20 kg.
Catching the contemporary is equipped with a gigantic gab by pointed lights.
The impressive fish is known and respected from the angles.
The fixing themselves pretty well to little ponds, where the water is badly.
The carp recognize from the other carps at his butterfly stroke aspect.
The color is golden by a dark green glimmer.
Crucian proves normally not very extensive. The proves seldom beyond 40 cm , however the weight can be recover from 3 kg.
Seaweed flea belongs to crayfish family.
Usual it is widespread and common to nearly whole country.
They lives amid brick and ferocious or between half rotten leaves.
Tubifex is reddish brush from the family Tubificidae. Latinske name: Tubifex tubifex.
They proves 2 cm., however only 1 mm fat. They live into water , to the community , frequently even correct heavy the community. In the water you see that red pillows of Tubifex. The community is from a couple to 10 m².
Lives in organic contaminate, gladly highly nutrient and frequently highly deficient in oxygen
Lives of small plants.
Moves by a little food.
Test very good!
The green frock
By the whole summer the green frock considerate at themselves.
In the lakes they “fight” by croaking loudly. They croak to say loudly to the other frocks: “kip away from this area”.
The little Newt
Little newt is common to whole country.
The little newt belongs to amphibian.
You se them typical about the spring, catching the breed to small lakes.
Outside the breeding season they saving themselves amid brick and tree trunk at land.
Woodlouse is a crayfish
Crayfish is widespread and common anywhere in Denmark.
The reside to water of every kinds.
The food is organic material.
B lack slug
Black slug is widespread and usual anywhere to Denmark.
The reside is not only to the forest that name intimate however too to bush, fence, parking and gardens. Black slug is an extensive, quality snail except cottage.
Black slug is one of the ca. 100 sorts from land snail, there reside to Denmark. Majority from land snails bears cottage. The snail except cottage are accessed naked snail.
They live from mushroom and plants , however they also eats carcass.
Læderløber (carabus convexus)
Læderløberen is widespread to whole Denmark, however it is no particularly common. It is one of our greatest beetles.
Most of them is black or dark and they have all kind of sizes. They smallest contains 3 mm in length.
Mostly you see them is in the forest.
Both the grown up beetles and the larva is a beast of prey. They live for the most part from worms , snails and insect larva.
Millipede Millipedes eat plants. It is round and have about 100 legs.
The grown up Spring Flue live
Spring Larva lives in a cottage, that is constructed from plants.
It eat algae and various plants..
The coal-black coot with the white bliss is a well known view in Tissø.
Coot eats mostly only vegetable
The Heron catch fish. It keep quite and suddenly it put its head into the water and catch a fish
It has its nest in the top of the trees!!
The Latin name is Fagus Sylvática.
The tree is 40m tall and 1½m thick.
The Beech is in flower in May, it is two sexes. The Beech is Denmark’s national tree.
Is used for furniture and floors.
The Latin name is: Fráxinus
The tree is 35 m tall.
You can find the tree in the forest and Brushwood. They grow around houses and