Parachanna obscura, African obscure snakehead : fisheries

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Parachanna obscura (Günther, 1861)

African obscure snakehead
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Image of Parachanna obscura (African obscure snakehead)
Parachanna obscura
Female picture by Naus, E.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Anabantiformes (Gouramies, snakeheads) > Channidae (Snakeheads)
Etymology: Parachanna: Greek, para = the side of + Greek, channe, -es = anchovy (Ref. 45335).
More on author: Günther.

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

; stvatten bottenlevande; flodvandrande (Ref. 51243). Tropical; 26°C - 28°C (Ref. 1672); 14°N - 3°S

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Africa: widely distributed from the Senegal River to the Chad system (Ref. 3575, 57290) up to the Nile (Ref. 3575) and Congo basins (Ref. 45434, 106290, 111328), including the Volta and Niger basins and many coastal basins in West Africa (Ref. 57290). In Lower Guinea known from most coastal basins (Ref. 81648).

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm SL hane/ej könsbestämd; (Ref. 31256); publicerad maxvikt: 1.0 kg (Ref. 3799)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 0; Mjukstrålar i ryggfenan (totalt): 39-45; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 26 - 32. Diagnosis: body elongate; lateral-line scales medium-sized, numbering 65-78; head depressed anteriorly, relatively long and covered with scales larger than those on body; lower jaw slightly longer than the upper, with 4-6 well developed canines; dorsal and anal fins not touching caudal fin; dorsal fin with 39-45, anal with 26-32 rays; 5-8 more or less rounded or polygonal dark blotches on sides (Ref. 57290, 81648). Coloration: blackish to very dark olivaceous, marbled with ochre ventrally; dark lateral band on head, broadening between hind margin of eye and hind margin of gill cover; fins with more or less distinct dark spots/maculae forming oblique bands; small, rounded black spot at base of caudal fin; fingerlings (prejuveniles) ochre-coloured, with a black band running along middle of sides, from tip of snout to hind margin of caudal fin (Ref. 57290, 81648).

Biologi     Ordlista (t.ex. epibenthic)

Inhabits marginal vegetation and floodplains. Feeds on insects and small fish (Ref. 28714). Maximum SL reported 50.0 cm (Ref. 31256) larger than maximum TL 45.5 cm (Ref. 81648).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Teugels, G.G., J.J. Breine and D.F.E. Thys van den Audernaerde, 1984. Channidae. p. 288-290. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Checklist of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 2. (Ref. 3575)

IUCN Red List Status (Ref. 125652)

  Least Concern (LC) ; Date assessed: 21 April 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fiskeri: kommersiell
FAO - Publication: search | FishSource |

Ytterligare information

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Stocks
Ekologi
Föda
Födoslag
Födointag
Näringsinnehåll
Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development
Age/Size
Tillväxt
Length-weight
Length-length
Length-frequencies
Morfometri
Morfologi
Larver
Larvdynamik
Rekrytering
Abundans
BRUVS
referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Allelfrekvenser
Ärftlighet
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Behandling
Nutrients
Mass conversion
Medarbetare
Bilder
Stamps, Coins Misc.
Ljud
Ciguatera
Hastighet
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Gälyta
Otoliths
Hjärnstorlek
Syn

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Special reports

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Internet-källor

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00610 - 0.00943), b=3.01 (2.95 - 3.07), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.4   ±0.56 se; based on food items.
Resiliens (Ref. 120179):  Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (44 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 148 [82, 279] mg/100g ; Iron = 1.16 [0.69, 2.00] mg/100g ; Protein = 17.8 [16.1, 19.4] % ; Omega3 = 0.207 [0.093, 0.466] g/100g ; Selenium = 74.4 [34.0, 171.0] μg/100g ; VitaminA = 24.1 [9.3, 64.1] μg/100g ; Zinc = 1.61 [1.04, 2.38] mg/100g (wet weight);