分類 / Names
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Ovalentaria/misc (Various families in series Ovalentaria) >
Polycentridae (Leaffishes)
Etymology: Polycentropsis: Greek, poly = a lot of + Greek, kentron = sting + Greek, opsis = appearance (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; pH range: 6.0 - 6.5; dH range: 10 - ?. Tropical; 26°C - 30°C (Ref. 2059)
Africa: in West Africa from the eastern side of the Ouémé (Benin) to the Cross River (Nigeria), including the lower course and delta of the Niger River (Ref. 57397). Also found in coastal parts of the rivers Meme, Wouri, Sanaga and Lokoundje in Cameroon and in the Komo and Ogowe basins in Gabon (Ref. 81649).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 6.7 cm SL オス/雌雄の選別がない; (Ref. 81649)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 15 - 17; 背鰭 (合計) : 9 - 11; 肛門の骨: 9 - 12; 臀鰭: 8 - 9; 脊つい: 23. Diagnosis: 6-7 scale rows on cheeks; lateral line incomplete; caudal peduncle very short; caudal fin truncate (Ref. 57397). Usually a pored lateral line is lacking, but if present, only 4-6 scales of dorsally curving series pored; 16 principal caudal rays with 1 procurrent ray on each lobe; 1st pelvic ray with anterior and posterior branches projecting a little beyond fin membrane; caudal peduncle conspicuously short; 10 abdominal and 13 caudal vertebrae; 3 predorsal bones (supraneurals) in front of 1st dorsal pterygiophore (Ref. 81649).
Coloration: dull brown; head and sides with irregular dark brown/black spots sometimes forming a marbled pattern (Ref. 57397; 81649). Dark band from anterior base of dorsal fin through eye to snout tip; second dark band from ventrocaudal margin of eye ventrocaudally over cheek to ventral side of body anterior to pelvic fin base; distal parts of soft dorsal and anal fin, caudal and pectoral fins transparent; pelvics and spinous part and base of soft dorsal and anal fins brown (Ref. 81649). Fins seeming rayless when viewed form certain angles (Ref. 57397).
Occurs in rainforest areas (Ref. 6801). Maximum reported TL was 8.0 cm (Ref. 6801).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Teugels, G.G., 2003. Nandidae. p. 516-519 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. 57397)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
Human uses
水産養殖: 商業; 水族館・水槽: 商業
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02042 (0.00788 - 0.05291), b=3.02 (2.79 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
