grayling

Scientific name Thymallus thymallus
Descriptor Linnaeus
Year of description 1758
IUCN category LC
Family Salmonidae
Genus Thymallus
Thymallus thymallus Thymallus thymallus

Introduction

Thymallus thymallus, commonly known as grayling, is a fresh water fish from the Europe.

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Who is it?

Morphology

  • Average size
    30 cm
  • Maximum size
    60 cm
  • Longevity
    5 year
  • Average size
    30 cm
  • Maximum size
    60 cm
  • Longevity
    5 year

How to recognize the grayling ?

The grayling measures between 30 and 60 cm. This fish is unicolore with a predominantly gris body.

Behaviour & Life cycle

  • diet
    carnivorous
  • Sociability
    living in small groups
  • territorial
    No
  • Way of living
    diurnal

The grayling is a fish living in small groups naturally found at mid-depth and near the bottom. This species is carnivorous .

Although the grayling is non-territorial, it is sometimes aggressive towards other species.

Reproduction

  • Reproduction
    ovipare qui pond sur substrat découvert
  • Migratory species
    Yes

The grayling is a fish ovipare qui pond sur substrat découvert. This fish protects its eggs from nearby predators.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

Where to see this species?

What is its habitat?

Natural environment characteristics

  • Temperature
    6 - 18 °C
  • pH (acidity)
    7 - 7.5

Biotope presentation

The grayling is most often found at a depth between 0m and 15m. However, it is not impossible to find this species at other depths.

Species of the same biotope

Fishkeeping

Not recommended

We do not recommend keeping this species in an aquarium. It has unpredictable needs which, if not met, generate significant stress, potentially leading to a shorter life expectancy, an interruption of its growth or the development of pathogens.

To go further

Species of the same family

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Adrien Falzon

Adrien Falzon

Benoit Chartrer

Benoit Chartrer

Translation

Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

Bibliographic references

LES POISSONS D’EAU DOUCE DES RIVIÈRES DE FRANCE. IDENTIFICATION, INVENTAIRE ET RÉPARTITION DES 83 ESPÈCES - Billard R. - Delachaux et Niestlé - 1997.

Observations sur le comportement d'éclosion et de post-éclosion chez l'ombre commun, Thymallus thymallus(L.) - D'Hulstère Daniel - Philippart Jean-Claude - Université de Liège - 1982.

Growth modelling in accordance with daily water temperature in European grayling (Thymallus thymallus L.) - J P Mallet - S Charles - H Persat - P Auger - Canadian Science Publishing - 1999.

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Where to see this species?

Species of the same family

Species of the same biotope

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