Galjoen
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Dichistiidae
Genus: Dichistius
Species:
D. capensis
Binomial name
Dichistius capensis
(G. Cuvier, 1831)
Synonyms
  • Dipterodon capensis G. Cuvier, 1831
  • Coracinus capensis (G. Cuvier, 1831)
  • Coracinus aper Gronow, 1854
  • Dichistius falcatus J. L. B. Smith, 1935

The galjoen, black bream, or blackfish (Dichistius capensis) is a species of marine fish found only along the coast of South Africa. Galjoen is the national fish of South Africa.[1]

Distribution and habitat

Galjoen at Rocky Bay

The galjoen is indigenous to the coasts of southern Africa from Angola to South Africa, and is generally found around reefs at shallow depths around 10 m (33 ft), often near the shore.

Description

This species can reach 80 cm (31 in) in total length and a weight of 6.5 kg (14 lb). The body is compressed, and the fins are well developed, with prominent spines,[1] 10 of them, with between 18 and 23 rays. The anal fin has three spines, and usually 13 or 14 rays, the pelvic fins have 1 spine and 5 rays, and the pectoral fins are typically shorter than the head.[2] The body, fins, and head, with the except of the front of the snout, are covered in scales.[2] The lips are thick, with strong curved incisors at the front of the mouth, with smaller teeth behind the front incisors.[2]

Galjoen at Castor Rock

Ecology

Diet

The species usually feeds on red and coraline seaweed and red bait, small mussels and barnacles found off rocky shores,[1] and appear in particular to be a partial to the white mussels residing in the sandy beaches and inlets of the rocky outcrops along the southern coast.

Home area

In 2005, the movements of the species were extensively studied. Some 25,000 galjoen were tagged at four sites in reserves in South Africa and their overall movement was found to remain localised, with some 95% of fish studied seeming to indicate a particular area.[3]

Importance to humans

Fishing

It is important to local commercial fisheries and is also popular as a game fish.[4]

As food

Due to their abundance in the shores off South Africa, galjoen is common in South African cuisine. A notable dish is the fish is sprinkled with pepper and lemon, or with lemon, mayonnaise, and melted garlic butter, and served with fresh bread and apricot jam.[5]

As the national fish of South Africa

Galjoen is the national fish of South Africa. The suggestion to make it the national fish came from Margaret Smith, the wife of ichthyologist J. L. B. Smith, to find a marine equivalent to the springbok.[1]

Etymology

The scientific name of Coracinus capensis is a reference to its black colour when found in rocky areas, Coracinus meaning "raven" or "black coloured"; in sandy areas it gives off a silver-bronze colour.[1]

References

Wikimedia Commons has media related to Dichistius capensis.
  1. 1 2 3 4 5 Lill, Dawid Van (1 January 2004). Van Lill's South African Miscellany. Zebra. p. 51. ISBN 978-1-86872-921-0.
  2. 1 2 3 Heemstra, Phillip C. (January 2004). Coastal Fishes of Southern Africa. NISC (PTY) LTD. p. 248. ISBN 978-1-920033-01-9.
  3. ↑ Cadrin, Steven X.; Kerr, Lisa A.; Mariani, Stefano (4 October 2013). Stock Identification Methods: Applications in Fishery Science. Academic Press. p. 388. ISBN 978-0-12-397258-3.
  4. ↑ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Dichistius capensis" in FishBase. April 2013 version.
  5. ↑ Paarman, Ina (2003). West Coast Cookbook. Struik. p. 96. ISBN 978-1-86872-846-6.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.