Belgium country information

Common names: Ombre commun
Occurrence: questionable
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Apparently have dissappeared from the Flemish rivers (Ref. 32722).
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/be.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Bervoets, L., J. Coeck and R.F. Verheyen, 1990
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Thymallinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Хариус обыкновенный, Ombre commun, Tímalo, ... more

Main reference

Kottelat, M. and J. Freyhof. 2007. (Ref. 59043)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 60.0 cm TL male/unsexed; (Ref. 556); common length : 30.0 cm TL male/unsexed; (Ref. 556); max. published weight: 6.7 kg (Ref. 6368); max. reported age: 14 years (Ref. 556)

Length at first maturity
L_m ? range ? - ? cm

Environment

Freshwater; brackish; benthopelagic; pH range: 7.0 - 7.5; dH range: 20 - ?; non-migratory; depth range 15 - ? m (Ref. 30578)

Climate / Range

Temperate; 6°C - 18°C (Ref. 2059), preferred ?; 70°N - 42°N, 6°W - 66°E

Distribution

Europe: Barent Sea basin west of Urals, Caspian, Black, Baltic, White and North Sea basins, Atlantic westward to Loire drainage; Rhône drainage; northern Adriatic basin east to Soca drainage. Introduced over most of southern and central Finland. Appendix III of the Bern Convention (protected fauna).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 5 - 8; Dorsal soft rays (total): 12-17; Anal spines: 3-4; Anal soft rays: 9 - 10; Vertebrae: 57 - 61. Distinguished from Thymallus arcticus by the following unique characters: maxillary usually reaching anterior margin of eye; pelvic fin grey, lacking red stripes; body without red spots; dorsal fin greyish, with parallel rows of round dark spots; gill rakers 19-30, averaging about 24-26 (Ref. 59043). Caudal fin with 19 to 21 rays (Ref. 2196).

Inhabits submontane reaches of rivers with a hard sand or stone bottom and well oxygenated, cold and fast-flowing water (Ref. 59043). Prefers running, well-oxygenated waters of rivers (Ref. 30578). In Scandinavia, it occurs in clear lakes and freshened part of northern Baltic basin. Usually lives in hollows behind boulders and shaded water under overhanging vegetation (Ref. 59043). Gregarious, forms schools (Ref. 2196). Feeds mainly on insects (Ref. 9696), nymphs, small worms and crustaceans (Ref. 30578). Breeds in shallow stretches, usually 20-40 cm deep, or riffles, with moderate current of about 0.5 m/s and clean gravel bottom (Ref. 59043). Can be captured with natural bait (insect larvae) or with artificial fly. Very sensitive to pollution (Ref. 30578).

IUCN Red List Status (Ref. 115185)

Least Concern (LC)

Threat to humans

Harmless

Human uses

Fisheries: commercial; aquaculture: commercial; gamefish: yes; aquarium: public aquariums

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5001 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.1 ±0.42 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.12-0.26; tm=2-6; tmax=14)

Vulnerability (Ref. 59153)
Moderate vulnerability (41 of 100)

Price category (Ref. 80766)
Very high

Thymallus thymallus (Linnaeus, 1758)