Finland country information

Common names: Harjus
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Winkler, H.M., K. Skora, R. Repecka, M. Ploks, A. Neelov, L. Urho, A. Gushin and H. Jespersen, 2000
Importance: subsistence fisheries | Ref:
Aquaculture: commercial | Ref:
Regulations: restricted | Ref:
Uses: gamefish: yes;
Comments: Original populations in Vuoksi basin, North of Kuusamo and on the coast of the Gulf of Bothnia. Stocks complemented through culture of juveniles for stock enhancement (Ref. 6334). Introduced over most of southern and central Finland (Ref. 59043).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fi.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Koli, L., 1990
National Database:

Common names from other countries

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

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Thymallinae
Etymology: Thymallus: Greek, thymallos, -ou = a kind of fish similar to salmon (Ref. 45335); thymallus: The name 'thymallus' could come from the thyme taste of the flesh of this fish (Ref. 30578).
More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range पारिस्थितिकी

; स्वच्छ जल, अलवण जल; खारा बेनथोपिलाजिक; pH range: 7.0 - 7.5; dH range: 20 - ?; गैर प्रवासी; गहराई सीमा 15 - ? m (Ref. 30578). Temperate; 6°C - 18°C (Ref. 2059); 70°N - 42°N, 6°W - 66°E

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

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.

Length at first maturity / आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm TL पुल्लिंग / अलिंग; (Ref. 556); common length : 30.0 cm TL पुल्लिंग / अलिंग; (Ref. 556); अधिकतम प्रकाशित वज़न: 6.7 kg (Ref. 6368); अधिकतम सूचित उम्र: 14 वर्षो (Ref. 556)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 5 - 8; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 12 - 17; गुदा कांटा: 3 - 4; ऐनल सौफट रेज़: 9 - 10; जानवरों की रीड़ का जोड़: 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).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 05 March 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक; जलीयकृषि: व्यापारिक; आखेट मत्स्य: हां; जलजीवालय: सार्वजनिक लजीवालय

FAO(Aquaculture systems: production; मात्स्यिकी: production; publication : search) | FishSource |

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Summary page | Point data | आम नाम | Photos

इंटरनेट स्रोत

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00776 (0.00564 - 0.01068), b=3.06 (2.97 - 3.15), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.42 se; based on food items.

लौटाव (Ref. 120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (K=0.12-0.26; tm=2-6; tmax=14).

Fishing Vulnerability (Ref. 59153): High vulnerability (56 of 100).

Price category (Ref. 80766): Very high.

Thymallus thymallus (Linnaeus, 1758)