Uganda country information

Common names: Nkolongo
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Lake Victoria (Ref. 1568, 4903, 82238), Lake Kyoga (Ref. 4903, 34290, 78218, 82238) and the Victoria Nile (Ref. 4903, 78218).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ug.html
National Fisheries Authority: http://isp.msu.edu/AfricanStudies/Plea/firi.htm
Occurrences: Occurrences Point map
Main Ref: Poll, M., 1971
National Database:

Common names from other countries

Victoria liithammassäga, 维多利亚歧须鮠, Viktoriasee-Fiederbartwels, ... more

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | 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 author: Boulenger.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser benthopelagisch; tiefenbereich 0 - 80 m (Ref. 34291), usually 20 - ? m (Ref. 34291). Tropical; 23°C - 27°C (Ref. 13614)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Africa: Lake Victoria, Lake Kioga, Victoria Nile and Malagarasi drainage (Ref. 78218, 82238).

Length at first maturity / Size / Gewicht / Alter

Maturity: L_m 9.1, range 8 - 10 cm
Max length : 35.0 cm SL Männchen/unbestimmt; (Ref. 34290)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 1; Rückenflossenweichstrahlen (insgesamt) : 6 - 7. 16-21 mandibular teeth. Maxillary barbels reaching posterior tip of the humeral process, or occasionally beyond. Mandibular barbels with slender branches. Greyish silver, with dark spots of variable size. Caudal fin occasionally spotted (Ref. 34290).

Occurs in rivers and lakes and prefers deeper water (0-80 m) (Ref. 34291), although it also occurs in shallow water (Ref. 34290). In Lake Victoria it occurs over hard and soft substrates, but is more common over soft bottoms and in water over 13 m deep; feeds on gastropod molluscs and insects (mainly chironomid larvae), and to a minor extent on fishes and ostracoda; able to extract the flesh of snails without crushing their shells (Ref. 12526). Rarely grows to lengths greater than 35 cm SL (Ref. 34290). Oviparous (Ref. 205).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

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

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Gosse, J.-P., 1986. Mochokidae. p. 105-152. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3202)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 17 March 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

FAO(Publication : search) | FishSource |

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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=0.01413 (0.00718 - 0.02780), b=2.88 (2.72 - 3.04), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.48 se; based on food items.

Widerstandsfähigkeit (Ref. 120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Fec = 1,500).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (38 of 100).

Synodontis victoriae Boulenger, 1906