Country Species Summary

Argyrosomus coronus in Namibia
Dusky kob

Argyrosomus coronus Griffiths & Heemstra, 1995
Family:	Sciaenidae (Drums or croakers)	picture () by ( not available )
Order:	Perciformes (perch-likes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Dusky kob
Max. size:	200 cm TL (male/unsexed; Ref. 36731); max. published weight: 77.0 kg (Ref. 11025)
Environment:	benthopelagic; oceanodromous ; depth range - 100 m
Climate:	tropical
Global Importance:	fisheries: minor commercial
Resilience:	Very low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)
Distribution:	Southeast Atlantic: South Africa to Angola.
Diagnosis:	Dorsal spines (total): 11-11; Dorsal soft rays (total): 26-30; Anal spines: 2-2; Anal soft rays: 7-7; Vertebrae: 25-25. 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.
Biology:	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)
Threatened:	Not Evaluated, see IUCN Red List , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Griffiths, M.H. and P.C. Heemstra. 1995. (Ref. 11025)
Update \| Add

Namibia country information
Common names:	Kabeljou, Dusky kob	Ref: Bianchi, G., K.E. Carpenter, J.-P. Roux, F.J. Molloy, D. Boyer and H.J. Boyer, 1999
Status:	native	Ref: Kirchner, C.H., 1998
Salinity:	freshwater, brackish, marine
Importance:	of no interest	Ref: Bianchi, G., K.E. Carpenter, J.-P. Roux, F.J. Molloy, D. Boyer and H.J. Boyer, 1999
Regulations:	no 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.
Country Information:	www.cia.gov/cia/publications/factbook/geos/wa.html
National Fisheries Authority:	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
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Checked: Okeyo, Daniel O.

Modified: Torres, Armi G.

Entered: Binohlan, Crispina B.

CGNET - US

Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07

	Ref.:		Glossary
		(e.g. 9948)		(e.g. cephalopods)
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