Ethiopia country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Rift Lakes, Wabi Shebele, Baro and Omo drainage basins (Ref. 58460). Present in Lakes Abaya and Stephanie (=Chew Bahir)(Ref. 81251). Also Ref. 3202.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/et.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Getahun, A., 2007
National Database:

Common names from other countries

Nile squeaker, Catfish, Okpo, ... more

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Mochokidae (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
More on authors: Bloch & Schneider.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

; Nước ngọt Sống nổi và đáy; pH range: 6.0 - 8.0; dH range: ? - 30; di cư trong nước ngọt (Ref. 51243). Tropical; 22°C - 28°C (Ref. 2060)

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

Africa: found practically in all basins of West Africa, except for the coastal basins of Guinea, Sierra Leone and Liberia (Ref. 57223), but including Senegal, Gambia, Volta, Niger and Chad basins (Ref. 3202), and Cross River in Nigeria (Ref. 81251). Also Nile basin downstream of Murchison Falls, including Lake Albert (Ref. 28714, 78218); Lake Turkana (Ref. 52331, 78218); and Ethiopian lakes Abaya and Chew Bahir [= Stephanie] (Ref. 78218). Also reported from Uebi Guiba (Uebi Shebeli) (Ref. 3202). Reports from Athi and Tana rivers are misidentifications probably refering to Synodontis zanzibaricus (Ref. 52331).

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: L_m 19.7, range 12 - 17 cm
Max length : 37.0 cm SL con đực/không giới tính; (Ref. 57223); Khối lượng cực đại được công bố: 500.00 g (Ref. 3799); Tuổi cực đại được báo cáo: 12 các năm (Ref. 72479)

Short description Khóa để định loại | Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng) : 1; Các vây lưng mềm (tổng cộng) : 6 - 7; Tia cứng vây hậu môn: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions (Ref. 28714, 57223). Body long, its depth 20-29% of SL (Ref. 28714). Post-orbital length at least 60% of snout length (Ref. 57223, 81251). Eye contained 1.75-2.25 times in interorbital width (Ref. 4903). Maxillary barbels longer than head (Ref. 57223, 81251) but not reaching to pelvic fins (Ref. 57223), unbranched and without tubercles (Ref. 57223, 81251) or distinct basal membrane (Ref. 28714, 57223, 81251). Outer mandibular barbels with few, rather short and simple ramifications (Ref. 57223, 81251). Branches of inner mandibular barbels few, short, simple and tuberculate (Ref. 57223, 81251), at least the anterior ones (Ref. 57223). Mandibular teeth moderately developed (Ref. 57223), movable (Ref. 81251), numbering 24-39 (Ref. 57223, 81251). Entire margin of opercle smooth (Ref. 81251). Dorsal- and pectoral-fin spines straight (Ref. 57223). Pectoral spines strongly serrated with twice the number of serrations along anterior edge than posterior edge (Ref. 81251), denticulations weaker on outer than on inner margin (Ref. 4903, 57223). Dorsal spine prolonged by a short filament (Ref. 81251), smooth anteriorly (Ref. 57223, 81251) except for a few apical denticles (Ref. 57223), and few serrations along posterior edge (Ref. 81251). However, large individuals may also have a weak denticulation on lower half of spine (Ref. 57223). Humeral process pointed and granulose, slightly keeled ventrally (Ref. 57223, 81251), its depth contained 1.8-2 times in its length (Ref. 4903), its posterior tip not or just reaching a point beneath the dorsal fin spine (Ref. 28714). Adipose fin well developed (Ref. 57223, 81251), high, rather close to rayed dorsal fin (Ref. 57223), not rayed (Ref. 28714). Body uniformly coloured or spotted body brownish dorsally, whitish ventrally (juveniles with white markings and black spots); caudal fin without single dark patch at base of each fin lobe (Ref. 81251). Maxillary barbels white or beige; outer margins of caudal-fin lobes more or less dark (Ref. 57223).

Maximum TL was recorded at 47.0 cm (Ref. 57223). Omnivore, feeds on insect larvae (Ref. 13868) (especially chironomids, Ref. 28714), nymphs, eggs and detritus (Ref. 13868). Also feeds on molluscs (predominantly, Ref. 4903), fish, bivalves in the Sudd and snails in Gezira irrigation canals (Ref. 28714). Oviparous (Ref. 205). Breeding occurs during the flood season (Ref. 28714). Utilized for human consumption.

Life cycle and mating behavior Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối | Người cộng tác

Paugy, D. and T.R. Roberts, 2003. Mochokidae. p. 195-268 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. 57223)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 02 June 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Các nghề cá: Tính thương mại; cá để chơi: đúng

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01622 (0.01290 - 0.02039), b=2.88 (2.83 - 2.93), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Mức dinh dưỡng (Ref. 69278): 2.9 ±0.37 se; based on food items.

Thích nghi nhanh (Ref. 120179): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.10-0.54; tmax=3; Fec=64,273).

Fishing Vulnerability (Ref. 59153): Low vulnerability (21 of 100).

Price category (Ref. 80766): Unknown.

Synodontis schall (Bloch & Schneider, 1801)