Thymallus thymallus

Den er lett gjenkjennelig på sin lange og høye ryggfinne. Den trives best i kaldt og oksygenrikt vann, og lever hovedsakelig av plankton , insekter og små krepsdyr. Harren, som er utbredt flere steder i Norge, er en . Reported genetic variability suggests that at least the Adriatic and Loire . Appearance: With its tapere streamlined body, .

Thymallus Bufret Lignende Oversett denne siden T. Subspecies, Variations, Synonyms: –. Taxonomical group: Class: Actinopterygii. Past and current threats (Habitats Directive article codes):. Climate change (M0 M04), Construction.

In Scandinavia, it occurs in clear lakes and freshened part of northern Baltic basin. Usually lives in hollows behind.

To improve security and privacy, we are moving our web pages and services from HTTP to HTTPS. From this date, the HTTP traffic will be automatically redirected to HTTPS. Harren is a natural and trout species in Sweden.

It is available in large quantities mainly in the northern parts of the country, and they proliferate usually in a fast pace. The populations are generally goo this is partly because the grayling is not as sensitive to climate changes such as char. Editio decima, reformata. Laurentius Salvius: Holmiae.

Note préliminaire sur les relations entre la pente et les populations piscicoles des eaux courantes. Grayling exhibit iteroparity (repeat spawning), and earlier observational studies indicate that they have a polygynandrous breeding system where both sexes mate with . Harr är en sportfiskefavorit i svala strömmar och klara sjöar, framför allt i norra Sverige. Fettfenan i kombination med den breda och långa ryggfenan som har -grenade strålar gör den lätt att känna igen.

Apzīmējumu skaidrojums . Harr fins i Norge i østlandsområdet, i Finnmark og og spredt i Nord-Trøndelag, Nordland og Troms. Harren trvies best i relativt kalde, rolige og oksygenrike elver , men fins i mindre anntall i en rekke sjøer. Arten er følsom for forurensing. Det kjennes lett igjen .

Gum B(1), Gross R, Kuehn R. Author information: (1)Wildlife Biology and Management Unit, Department for Ecosystem and Landscape . River Naknek Hornet 3S CW. In the fiel immediately after capture, their blood was sampled by cardiac puncture. Subsequently, the values of the haematological parameters were measured using adapted standard .