Namibia country information

Common names: Dusky kob, Kabeljou
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: of no interest | Ref: Bianchi, G., K.E. Carpenter, J.-P. Roux, F.J. Molloy, D. Boyer and H.J. Boyer, 1999
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Prefers warmer waters of the surf zone; caught by rock-and-surf anglers from Meob Bay to the Ugab River mouth, becoming increasingly more abundant in the catch northwards to the Kunene River mouth (Ref. 33860). More common in northern Namibia (Ref. 36731). Caught mostly with handlines in fairy low numbers (Ref. 36731). Also in Ref. 11025, 33857, 52863, 54854.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/wa.html
National Fisheries Authority: http://www.benefit.org.na/
Occurrences: Occurrences Point map
Main Ref: Bianchi, G., K.E. Carpenter, J.-P. Roux, F.J. Molloy, D. Boyer and H.J. Boyer, 1999
National Database:

Common names from other countries

West coast kob, Kabeljou, Pungo, ... more

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: Argyrosomus: Greek, argyros = silvered, silver + Greek, soma = body (Ref. 45335); coronus: Named for Corana Griffiths, wife of the first author; noun in apposition..

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

marinhas; estuarina bentopelágico; oceanódromo (Ref. 51243); intervalo de profundidade ? - 100 m (Ref. 11025), usually 20 - 40 m (Ref. 36731). Tropical

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

Southeast Atlantic: South Africa to Angola.

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 200 cm TL macho/indeterminado; (Ref. 36731); peso máx. Publicado: 77.0 kg (Ref. 11025)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 11; Raios dorsais moles (total) : 26 - 30; Espinhos anais: 2; Raios anais moles: 7; Vértebras: 25. Swim bladder carrot-shaped with 28-38 arborescent appendages. Drumming muscles present in both sexes; urinary bladders large; sagitta typically Argyrosomus; pectoral fin axillary fold without scales; peritoneum unpigmented; anterior part of lateral line slightly curved.

Occurs in estuaries, the surf zone and further offshore. In southern Angola, it is caught mainly in depths of 20-40 m. Becomes more abundant in Argyrosomus catches going northwards, indicating its preference for warmer waters. Fish up to 13,000 g were found to be immature. Adults are rarely found in Namibia but are said to be abundant in southern Angola, where the lack of permanent estuaries there suggests that this habitat type does not play an important role in the life history of this species (Ref. 11025).

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

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Griffiths, M.H. and P.C. Heemstra, 1995. A contribution to the taxonomy of the marine fish genus Argyrosomus (Perciformes: Sciaenidae), with descriptions of two new species from southern Africa. Ichthyol. Bull., J.L.B. Smith Inst. Ichthyol. No. 65, 40 p. (Ref. 11025)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Dados insuficientes (DD) ; Date assessed: 19 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

Pescarias: pouco comercial; peixe desportivo: sim

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00575 (0.00278 - 0.01190), b=3.11 (2.93 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 4.4 ±0.7 se; based on size and trophs of closest relatives

Resiliência (Ref. 120179): Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Categoria de preço (Ref. 80766): Medium.

Argyrosomus coronus Griffiths & Heemstra, 1995