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Dichistius capensis (Cuvier, 1831)

Galjoen
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Native range | All suitable habitat | Point map | Year 2050
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Dichistius capensis   AquaMaps   Data sources: GBIF OBIS
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Image of Dichistius capensis (Galjoen)
Dichistius capensis
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 Ecology

Marine; reef-associated; depth range 10 - ? m (Ref. 5213). Subtropical; 12°S - 36°S, 10°E - 34°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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

Length at first maturity / Size / Weight / Age

Maturity: Lm 34.0  range ? - ? cm
Max length : 80.0 cm TL male/unsexed; (Ref. 4370); max. published weight: 6.5 kg (Ref. 4370)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 10; Dorsal soft rays (total): 18 - 19; Anal spines: 3; Anal soft rays: 13 - 14. Changes from black to silver almost instantly to blend with environment; occasionally mottled or with 7-9 crossbars (Ref. 4370).

Biology     Glossary (e.g. 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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: Version 2024-1)

Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; gamefish: yes
FAO - Publication: search | FishSource |

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | 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, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 14.4 - 24.7, mean 16.7 °C (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 (0.00661 - 0.03981), b=3.01 (2.79 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.45 se; based on food items.
Generation time: 8.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (K=0.13).
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 16.5 [7.8, 32.0] mg/100g; Iron = 0.449 [0.259, 0.748] mg/100g; Protein = 19.3 [18.1, 20.5] %; Omega3 = 0.155 [0.089, 0.271] g/100g; Selenium = 24.8 [11.8, 51.6] μg/100g; VitaminA = 23.6 [5.9, 90.6] μg/100g; Zinc = 0.598 [0.394, 0.888] mg/100g (wet weight);