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Dichistius capensis (Cuvier, 1831)

Galjoen
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Dichistius capensis   AquaMaps   Data sources: GBIF OBIS
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Image of Dichistius capensis (Galjoen)
Dichistius capensis
Picture by FAO

South Africa country information

Common names: Galjoen, Galjoen
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: subsistence fisheries | Ref: van der Elst, R., 1993
Aquaculture: | Ref:
Regulations: protected | Ref: van der Elst, R., 1993
Uses: gamefish: yes;
Comments: South Africa's national fish. Occurs from the west coast to Sodwana Bay. Stock sound but vulnerable; stabilized since decommercialization (Ref. 4332). Specific catch restrictions: closed season applies; not to be sold; minimum legal size: 35 cm TL (Ref. 12484). Angling record: 6.5 kg; spearfishing record 5.2 kg (Ref. 12484). Also Ref. 5213.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Smith, M.M., 1986
National Database:

Common names from other countries

Galjoin franc, Damba, 大眼双帆鲈, ... more

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

> Centrarchiformes (Basses) > Dichistiidae (Galjoen fishes)
Etymology: Dichistius: Greek, dichao, dichasis = divided in two parts (Ref. 45335).
  More on author: Cuvier.

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

marina revassocierade; djupintervall 10 - ? m (Ref. 5213).   Subtropical; 12°S - 36°S, 10°E - 34°E

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

Southeast Atlantic to southwestern Indian Ocean: southern Angola to Natal, South Africa.

Length at first maturity / Size / Vikt / Age

Maturity: Lm 34.0  range ? - ? cm
Max length : 80.0 cm TL hane/ej könsbestämd; (Ref. 4370); publicerad maxvikt: 6.5 kg (Ref. 4370)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 10; Mjukstrålar i ryggfenan (totalt): 18-19; Taggstrålar i analfenan 3; Mjukstrålar i analfenan: 13 - 14. Changes from black to silver almost instantly to blend with environment; occasionally mottled or with 7-9 crossbars (Ref. 4370).

Biologi     Ordlista (t.ex. epibenthic)

Found in inshore reefs, rocky and sandy areas. Feeds on mollusks, crustaceans, and other invertebrates (Ref. 5213). Abundant in winter, breeding occurs in deeper water. Becoming scarce because of overfishing (Ref. 36731).

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

Main reference Upload your references | referenser | Koordinator | Medarbetare

Smith, M.M., 1986. Coracinidae. p. 601-602. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4370)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fiskeri: kommersiell; sportfisk: ja
FAO(Publication : search) | FishSource |

Ytterligare information

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Internet-källor

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Släkte, Arter) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, sök) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 14.4 - 24.7, mean 16.7 (based on 20 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00664 - 0.03964), b=3.01 (2.79 - 3.23), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.3   ±0.45 se; based on food items.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.13).
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).
Price category (Ref. 80766):   Unknown.