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Implantation
of the Rhone is an endemic fish of the mining area of the Rhone. For the scientists this fish is an evidence of the hydrological connection which existed between the mining area of the Danube and that of the Rhone. Its ecological requirements make that he is threatened today by pollution. If it is noted an implantation on more than m of river at the end of the century, its territory is limited nowadays to a few m on the Rhone, Ain, Drome and . Its inventories are estimated at approximately 4.000 individuals.
Other species remain in Central Europe (Mining area of the Danube, Romania, Yugoslavia).
Lifestyle
is a recluse nourishing small invertebrates and alevins.
It occupies of the specific areas in the waterways, is camouflaged in substrates
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Scientific name:
Family:
Other names: - English: The Rhone
Maximum weight:
Maximum size: 20 cm (15 cm in .)
Lifespan:
Period of abrasion: March-April - water 6 with 14°C
Bridge: From 5.000 to 6.000
The body of is tapering with a brown back, sides of a brown-yellow mixture with irregular dark spots and 3 transverse black tapes visible on the posterior party. On the edge of the cover, carries a pivot. Its two dorsal fins are separate, and the second is longer. Its thick pelvic fins are used as support when the fish is posed on the content.
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stony. Sedentary and territorial, moves the night, in search of food.
In March and April, after a short migration towards the downstream of the river, the reproduction takes place in water fresh, shallow, and on the funds made up of stones and plants.
Fish
Taking into account the threats which weigh on this fish - and still should he be found - it is advisable to save it while giving to water each representative of this species.
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