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Babka gymnotrachelus  (Kessler, 1857)

Racer goby
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Babka gymnotrachelus
Male picture by Mikhov, S.D.

Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Perciformes (Perch-likes) > Gobiidae (Gobies) > Gobiinae

Miljö / Klimat / Range Ekologi

; sötvatten; brackvatten bentopelagisk.   Temperate; 4°C - 20°C (Ref. 2059), preferred ?; 49°N - 40°N, 25°E - 54°E

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Eurasia: Widespread all over the Marmara, Black and Caspian seas basins; inhabits mostly fresh- and brackish waters with low salinity (<2%).

Length at first maturity / Size / Vikt / Age

Maturity: Lm ?, range 6 - ? cm
Max length : 16.2 cm TL hane/ej könsbestämd; (Ref. 2058); rapporterad maxålder: 5 år (Ref. 59043)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 7 - 8; Mjukstrålar i ryggfenan (totalt): 14-18; Taggstrålar i analfenan 1; Mjukstrålar i analfenan: 12 - 16. This species is distinguished from its congeners entering freshwater in Europe by the following characters: irregular position and shape of diagonal bars on body; first branched ray of second dorsal about as long as penultimate ray; no scales on midline of nape, in front of preoperculum; pelvic-disc fraenum with small rounded lobes and the length is less than 1/6 of width at base; scales in midlateral series 54-62 + 2-3; posterior part of first dorsal without black spot (Ref. 59043).

Biologi     Ordlista (t.ex. epibenthic)

Occurs in brackish- and fresh-water habitats with low salinity (< 2 ppt); lagoons and lakes; large rivers to small, fast-flowing streams; on sand or mud bottom; mainly in well vegetated or high-complexity habitats. Abundant in backwaters and still channels (Ref. 59043). Longevity is 4-5 years; spawns for the first time at 2 years; spawning season in April to June, occasionally until mid-August; females may repeat spawning during a season; usually spawns for a single season. Males guard eggs until hatching; with adhesive eggs deposited on stones, shells and aquatic plants (Ref. 59043). Feeds on crustaceans (esp. Corophiid amphipods), aquatic insects (mostly chironomid larvae), polychaetes, also small fish and mollusks (Ref. 4696).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Adhesive eggs are deposited on stones, shells and aquatic plants. Males guard eggs until hatching (Ref.59043).

Main reference Upload your references | referenser | Koordinator | Medarbetare

Miller, P.J., 1986. Gobiidae. p. 1019-1085. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. Volume 3. UNESCO, Paris. (Ref. 4696)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

Ytterligare information

Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
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Könsmognad
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Fecundity
Ägg
Egg development
Age/Size
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Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
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referenser
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