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Gymnallabes typus Günther, 1867

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Gymnallabes typus
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Siluriformes (Catfishes) 鯰形目 (Catfishes) > Clariidae (Airbreathing catfishes) 塘蝨魚科 (Airbreathing catfishes)
Etymology: Gymnallabes: Greek, gymnos = hidden + Greek, allabes, -etos = a fish of the Nile, a kind of lamprey (Ref. 45335).
More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 居於水底的. 熱帶; 17°N - 2°N

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Africa: lower reaches and the delta of the Niger (Nigeria) and the Cross basin (Nigeria and Cameroon)(Ref. 57129, 81644). Also reported from the rivers Ouémé (Benin) (Ref. 57129, 81644) and Osse (Nigeria)(Ref. 57129).
非洲: 在奈及利亞的下游與尼日河的三角州與十字河流域。 也已知來自喀麥隆。 (參考文獻 3820)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 29.7 cm TL 雄魚/尚未辨別雌雄; (Ref. 81644)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 0; 背的軟條 (總數) : 96 - 109; 臀棘: 0; 臀鰭軟條: 83 - 94. Diagnosis: dorsal and anal fins always confluent with caudal fin (Ref. 57129, 81644). Body very elongate, maximum body depth 14-15% standard length (Ref. 57129), abdominal depth 4.5-8% SL (mean 6) (Ref. 81644). Head very short, 12.5-14.3% standard length; lateral cephalic bones separated from each other by a distinct gap (Ref. 57129). Distance between supraoccipital process and dorsal fin short, 5-14% SL; pectoral fins present, 30-56% skull length, supported by a short spine (about half of fin length); pelvic fins always present and short; skull short, 11-18% SL (mean 13), with a very narrow roof, 9-23% (mean 14) head length, partially covered by jaw muscles; these muscles almost completely exposed dorsally and laterally and frequently bulging (especially in larger specimens); supraoccipital process short and narrow, 10-20% (mean 16) head length; eyes very small (4-9%), bordered by small infraorbital bones (hard to observe externally); barbels long, maxillary longest (86-155% skull length); maxillary barbel connected at base to large skin folds that border mouth opening; when mouth is closed, these skin flaps are folded and conspicuous in dorsal view; internal mandibular barbel shortest, 58-99% (mean 76) head length (Ref. 81644). Coloration: in life: uniformly light brown (Ref. 81644). Preserved specimens: brownish-black on back and sides, light brown on belly (Ref. 57129). Ventral prepelvic region slightly paler than rest of body (Ref. 81644).

生物學特性     字彙 (例如 epibenthic)

Prefers small streams and ditches with leaf litter. Also found in swamp regions. Diet probably consists of insect larvae, worms and similar smaller organisms. Fishes are not eaten (Ref. 78218).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

非洲: 在奈及利亞的下游與尼日河的三角州與十字河流域。 也已知來自喀麥隆。 (參考文獻 3820)

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Teugels, G.G., 2003. Clariidae. p. 144-173 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57129)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 29 April 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

FAO - Publication: search | FishSource |

更多資訊

Trophic ecology
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捕食者
Ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.4   ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (20 of 100).