FAUNA and FLORA
The fauna of the lake is one of its great riches. The marsh of La Véronnière to the north, classified as a "protected natural area", is one of the most beautiful bird reserves in the Dauphiné: grebes, herons, kingfishers, ducks, teals, coots, swans find shelter and food there, for n cite just a few species.
The aquatic fauna is no less rich: pike, carp, perch, tench, lavarets, crayfish, arctic char, trout, etc... make Lake Paladru a popular place for fishermen.
There are also water mussels (anodontes) which are highly toxic! On the other hand, they filter the water and help to purify it.
The aquatic flora includes many species of plants, some of which are essential to the life of the lake and the fauna that inhabits it. For example: the reeds contribute to the natural cleansing of the lake and shelter the broods of coots. Water lilies beautify the lake during the flowering period. Underwater grasses allow small fish to protect themselves from their predators. Plankton feed carp and many other species...
The lake is a living world, both rich and fragile.
The reedbeds of the lake are protected by a prefectural decree
which prohibits any penetration and any destruction of the reeds.
Aquatic plants :
- les reeds (phragmites)
- les rushes
- the water lily
- cc781905-5cde-3194-bb3b-136bad5cf58d_ _cc781905-5cde-3194-bb3b-136bad5cf58d
- the water mille-feuilles
- the swimming hornwort
- the aquatic buttercup
- amphibious knotweed: floating plant
- amphibious watercress or wild horseradish
- cc781905-5cde-3194-bb3b-136bad5cf58d_ les charagnes: plants between mosses and algae
- the reed
- duckweed
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Many of these plants have become very rare, even extinct, victims of water pollution, pollution which is now curbed by the sewers. But nitrates are still too present.
Fish:
- Salmonidae:
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ Arctic char; at the time of spawning, it becomes the "golden fish". It feeds on microscopic crustaceans and live prey. The spawning grounds, the omblières, are located in a protected hole and near a source of clear water.
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ The trout
- Cyprinidae:
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ Carp: when spawning, they jump. She lays her eggs on the aquatic plants on board. It is an omnivorous fish. In winter, she becomes lethargic, does not move and does not eat.
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ The tench: its eggs adhere to grass like those of carp.
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ The white roach or veron. It lays its eggs on bottoms covered with algae or on submerged roots (locality La Véronnière). In winter, he sleeps in the depths.
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ The red or rudd or red roach
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ The miller or chub or sculpin
o_cc781905 -5cde-3194-bb3b-136bad5cf58d Bremen.
- Esocids:
o_cc781905 -5cde-3194-bb3b-136bad5cf58d_ The pike. It is the freshwater shark.
- Percoidae:
o _cc781905 -5cde-3194-bb3b-136bad5cf58d_ La perche. Its eggs form greenish-white strings on shore stones or on aquatic plants. It is voracious and feeds on small fish and fry. She also eats dragonflies. With us, the perchettes are called "brunettes".
- Eels and crayfish: they have become very rare.
Catfish Catfish Catfish Catfish
Aquatic birds:
- The wild duck
- The Eurasian Coot
- Judelle
- Sinner Martin
- Heron
- The Water Hen
- The Grebe
- The Seagull
- The bittern
- Birds of passage: heron, lapwing, plover, wild goose, scaup and scaup common redshank, tern, gull, red-crested net.
In recent years, the cormorant has been settling in and devouring a huge quantity of fry but also pike up to 50 cms, perch up to 740 g. Also trout, char, whitefish, etc. Although a protected bird, a prefectural decree authorizes the shooting of a small number to limit their nuisance.
Other aquatic animals:
- The muskrat which does a lot of damage in the reedbeds.