分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Synbranchiformes (Spiny eels)
合鰓魚目 (Spiny eels) >
Synbranchidae (Swamp-eels)
合鰓魚科 (Swamp-eels)
Etymology: Ophisternon: Greek, ophis = serpent + Greek, sternon = chest (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水; 半鹹淡水 居於水底的. 熱帶; 17°N - 3°N
Africa: coastal river at Mansoa Point, Guinea Bissau (Ref. 57291, 116049). Also recorded from Niger delta, Nigeria (Ref. 57291).
中東大西洋: 確定知道的在港口 Mansoa ， Guinee 比索只從一條潮汐的河雖然它被記錄自 Guinee 比索到奈及利亞.(參考文獻 2828)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 53.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 57291)
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) : 0; 臀棘: 0; 臀鰭軟條: 0. Diagnosis: body naked, elongated, cylindrical in front and strongly compressed back; caudal part of body making less than one third of the total length and ending in a blunt point; no paired fins; dorsal and anal fins reduced to a skin fold, rayless, meeting the caudal fin; eyes small, overlaid with skin, situated at the head forward; mouth large with well developed lips; conical teeth to the jaws and the palate; gill opening reduced to a medio-ventral transversal slit; branchiostegal membrane free from isthmus; 4 branchial arches with well developed branchiae; lateral line present; vertebral count: 80 abdominal and 50 caudal (Ref. 57291).
Colouration: adults are dark-coloured, nearly black, juveniles are clearer (Ref. 57291).
Facultative air-breathing (Ref. 126274); The male guards and builds nest or burrow (Ref. 205).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
中東大西洋: 確定知道的在港口 Mansoa ， Guinee 比索只從一條潮汐的河雖然它被記錄自 Guinee 比索到奈及利亞.(參考文獻 2828)
Daget, J., 2003. Synbranchidae. p. 447-450 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. 57291)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
瀕危 (EN) (B2ab(iii)); Date assessed: 12 September 2019
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00085 (0.00039 - 0.00184), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
