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Babka gymnotrachelus  (Kessler, 1857)

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

分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

条鰭類 > Perciformes (Perch-likes) > Gobiidae (Gobies) > Gobiinae

環境 / 気候 / 範囲 生態学

; 新鮮な水; 汽水性の 底生の漂泳性.   Temperate; 4°C - 20°C (Ref. 2059), preferred ?; 49°N - 40°N, 25°E - 54°E

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | 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 / サイズ / 重さ / 年齢

Maturity: Lm ?, range 6 - ? cm
Max length : 16.2 cm TL オス/雌雄の選別がない; (Ref. 2058); 最大記録サイズ: 5 年 (Ref. 59043)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 7 - 8; 背鰭 (合計): 14-18; 肛門の骨 1; 臀鰭: 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).

生物学     用語集 (例 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 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

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

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

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のレッドリストの状況は (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | 私達の周りの海

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