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Pareutropius buffei (Gras, 1961)

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Nigeria country information

Common names: Asan
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from the Ogun (Ref. 13331, 43912, 57127), Oshun, Niger delta, Kwa Ibo (Ref. 43912, 57127) and Cross (Ref. 31256, 43912, 57127, 81643). Type locality of the holotype and the 6 paratypes of Eutropiellus vandeweyeri: "Lower Niger delta, between Lagos and Port Harcourt (probably: environment of Aba, lower Niger Delta), Nigeria" (Ref. 43912). Also Ref. 3570.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ni.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: De Vos, L., 2003
National Database:

Common names from other countries

Nigeriankuultomonni, Pääsusaba-läiksäga, Schwalbenschwanz-Glaswels, ... more

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

Teleostei > Siluriformes (Catfishes) 鯰形目 (Catfishes) > Schilbeidae (Schilbid catfishes) 北非鯰科 (Schilbid catfishes)
Etymology: Pareutropius: Greek, par = beside, near + Greek, eu = well + Greek, tropis = keel, in reference to the compressed body of the fish;  buffei: Named for Mr Buffe, former Director of the "Service de Eaux et Forets" of Dahomey (now Benin) (Ref. 43912).

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

; 淡水 居於水底的; pH range: 6.0 - 8.0; dH range: 5 - 19; 河川洄游 (Ref. 51243).   熱帶; 24°C - 27°C (Ref. 1672); 14°N - 4°N

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

Africa: lower Niger (Nigeria), lower Ouémé (Benin) and coastal freshwater lagoons lying between these rivers; also in the Cross River (Nigeria)(Ref. 57127, 81643).
非洲: Oueme(貝南) 的下游, Ogun(奈及利亞) 與尼日。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 11.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 57961)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 1; 背的軟條 (總數): 4-5; 臀鰭軟條: 28 - 36. Diagnosis: inner and sometimes outer side of pectoral spine with small serrations; 28-36 branched anal-fin rays; 5-9 gill rakers on lower limb of first gill arch; only one pair of mandibular barbels (Ref. 43912, 57127, 81643). Palatine teeth present (Ref. 57127, 81643). 6-8 branchiostegal rays on one side of head; 4-5 branched dorsal fin rays; peculiar coloration characterized by dark spot on upper and lower lobe of caudal fin, oblique lateral streak from posterior border of opercle to above anus and a mid-dorsal narrow dark line which is never continuous with upper caudal fin spot (Ref. 43912).

生物學特性     字彙 (例如 epibenthic)

Probably lives in open water, in relation to its gregarious habits (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Max. TL 81mm (Ref. 3570, 43912), max. SL 70 mm (Ref. 81643).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

Distinct pairing (Ref. 205). Lay about 100 eggs.非洲: Oueme(貝南) 的下游, Ogun(奈及利亞) 與尼日。

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

De Vos, L., 1992. Schilbeidae. p. 432-449. In C. Levêque, D. Paugy, and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres d'Afrique de l'Ouest Tome 2. Faune Tropicale n° 28. Musée Royal de l'Afrique Centrale, Tervuren, and O.R.S.T.O.M., Paris. (Ref. 7351)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 09 June 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00434 - 0.01593), b=3.05 (2.88 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.2   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (Fec=100).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
價格種類 (Ref. 80766):   Unknown.