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Synodontis annectens Boulenger, 1911

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No image available for this species;
drawing shows typical species in Mochokidae.


Guinea 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 the Corubal, Kogon and Great Scarcies/Kolenté rivers (Ref. 57223).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/gv.html
National Fisheries Authority: http://www.fis-net.com/guinea
Occurrences: Occurrences Point map
Main Ref: Paugy, D. and T.R. Roberts, 2003
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | 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 Ecologia

; Água doce bentopelágico.   Tropical; 14°N - 6°N

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Africa: basins of the Gambia, Géba (including its affluent Culufi), Tominé (Corubal), Kogon, Great Scarcies/Kolenté, Jong/Pampana and Sewa in Senegal, Gambia, Guinea-Bissau, Guinea and Sierra Leone (Ref. 57223).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 33.5 cm TL macho/indeterminado; (Ref. 130826)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 1; Espinhos anais: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; snout over 50% of head length and over 80% of head width; post-ocular length less than 30% of head length; maxillary barbels slightly shorter than head, bearing externally some short and simple ramifications and a broad basal membrane; outer and inner mandibular barbels with numerous tuberculate ramifications; mandibular teeth long, numbering 6-9 (8 in the lectotype); pectoral-fin spines weakly denticulate on inner margin and very slightly crenulated externally; dorsal-fin spine smooth anteriorly and prolonged into a filament; humeral process deep, blunt, granulose and not keeled ventrally; adipose fin long, low and rather close to rayed dorsal fin (Ref. 57223). Coloration: general appearance rather dark, with ventral areas lighter; outer margins of caudal-fin lobes black-edged (Ref. 57223).

Biologia     Glossário (ex. epibenthic)

Oviparous (Ref. 205). Maximum total length 323mm (Ref. 57223).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

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

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Preocupação menor (LC) ; Date assessed: 22 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless




Utilização humana

FAO(Publication : search) | FishSource |

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Trophic ecology
Itens alimentares
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Food consumptions
Food rations
Predadores
Ecology
Ecologia
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Population dynamics
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Length-weight rel.
Length-length rel.
Frequência de comprimento
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Abundances
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Reprodução
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Physiology
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Tipo de natação
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Visual pigment(s)
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Genetics
Genética
Electrophoreses
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Human related
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Ciguatera cases
Stamps, coins, misc.
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References
Referências

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Fontes da internet

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=0.00933 (0.00303 - 0.02871), b=3.05 (2.80 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  2.9   ±0.3 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (24 of 100).