ANIMALIA / CHORDATA / ACTINOPTERYGII / PERCIFORMES / SCIAENIDAE / ARGYROSOMUS / INODORUS
Silver kob has a silvery head and body which becomes greenish brown with a bronze shine dorsally and white below. The inside of the mouth is white to pale yellowish grey and the peritoneum is white. The body depth is 3.6 to 4.2 times SL and peduncle length is 12-15% SL, and peduncle depth is 58-74% peduncle length. Pectoral fin reaches on or beyond vertical at tip of pelvic fin (Heemstra and Heemstra 2004).
Endemic to southern Africa from northern NAM to southern Transkei (Griffiths and Heemstra 1995, Kirchner 1998).
As above. Three separate stocks have been identified in SA waters. One in the SEC, one in SC and one in SWC (Griffiths 1996a, 1997a). Furthermore, a separate stock was identified in NAM (Kirchner 1998, Kirchner and Voges 1999).
Silver kob migrates seasonally from the inshore region in summer to offshore in winter (Griffiths 1997a, Kirchner 1998).
Adult silver kob preys on pelagic fish, shrimp and squid (Heemstra and Heemstra 2004) but the diet of juveniles in unknown.
Silver kobs are gonochorists that spawn inshore throughout the year but the main spawning season is from August to December with a peak between September and November (Griffiths 1997a). Females reach an age at 50% maturity after 1.3 years in the southeastern cape, 2.4 years in the southern cape and 1.5 years in Namibia (Griffiths 1996a, Kirchner 2001). They reach a length at 50% maturity in males at 290mm TL in the southeastern cape; 325mm TL in the southern cape and 360mm TL in Namibia. Females at 310mm TL in the south eastern cape, 375mm TL in the southern cape and 350mm TL in Namibia (Griffiths 1997a, Kirchner 2001).
Inshore, Offshore (>30m)
This map contains point-based occurrences at different locations
Occurrence in African countries and South African provinces. Residence status indicates if a taxon is indigenous, endemic, or alien in a specific region. This data is based on specimen records and literature.
FSA
SA
BOT
NAM
ESW
LES
WC
EC
NC
FS
GA
KZN
LP
MP
NW
Absent
Indigenous
Endemic
Naturalised
Invasive
Names and Sources
| Common Name | Language |
|---|---|
| Mild Meagre | En |
| Silver Kob | En |
| Kabeljou |
Classification
KINGDOM Animalia
PHYLUM Chordata
CLASS Actinopterygii
ORDER Perciformes
FAMILY Sciaenidae
GENUS Argyrosomus
SPECIES inodorus
No results found for Argyrosomus inodorus Griffiths & Heemstra, 1995
An important component of the commercial skiboat fishery in the SWC, SC and SEC (Smale and Buxton 1985, Griffiths 1997a,c, Brouwer and Buxton 2002). A sought after species for many recreational boat-based anglers, particularly in the SEC (Brouwer and Buxton 2002, Donovan 2010). Important component of the bycatch of inshore trawlers along the SEC coast (Griffiths 1997c, Attwood et al. 2011). The inshore trawl catch is in the same order of magnitude as the linefish catch, but is not restricted by size limits. Caught from the shore mainly to the west of Cape Agulhas (Brouwer et al. 1997, Brouwer and Buxton 2002), important in both the commercial and recreational linefishery in NAM (Kirchner 1998, Kirchner and Beyer 1999, Holtzhausen et al. 2001). Caught in the beach seine-net fishery in SWC (Lamberth et al. 1997).
1 results for Argyrosomus inodorus Griffiths & Heemstra, 1995
This map contains point-based occurrences at different locations
1996
JOURNAL ARTICLE
Age and growth of South African silver kob Argyrosomus inodorus (Sciaenidae), with evidence for separate stocksGriffiths, MH. 1996. Age and growth of South African silver kob Argyrosomus inodorus (Sciaenidae), with evidence for separate stocks Vol. 17 pp.37–48.
1997
JOURNAL ARTICLE
The life history and stock separation of silver kob, Argyrosomus inodorus, in South African watersGriffiths, MH. 1997. The life history and stock separation of silver kob, Argyrosomus inodorus, in South African waters Vol. 11 pp.1358–1359.
1995
BOOK
A contribution to the taxonomy of the marine fish genus Argyrosomus (Perciformes: Sciaenidae), with descriptions of two new species from southern AfricaHeemstra, Phillip, Griffiths, Marc. 1995. A contribution to the taxonomy of the marine fish genus Argyrosomus (Perciformes: Sciaenidae), with descriptions of two new species from southern Africa. JLB Smith Institute of Ichthyology.
2004
BOOK
Coastal fishes of Southern AfricaHeemstra, P, Heemstra, E. 2004. Coastal fishes of Southern Africa. Grahamstown. NISC pp.488.
1998
BOOK
Population dynamics and stock assessment of the exploited silver kob (Argyrosomus inodorus) in Namibian watersKirchner, Carola. 1998. Population dynamics and stock assessment of the exploited silver kob (Argyrosomus inodorus) in Namibian waters. University of Port Elizabeth.
2001
JOURNAL ARTICLE
Fisheries regulations based on yield-per-recruit analysis for the linefish silver kob Argyrosomus inodorus in Namibian watersKirchner, Carola. 2001. Fisheries regulations based on yield-per-recruit analysis for the linefish silver kob Argyrosomus inodorus in Namibian waters Vol. 52 pp.155–167.
1999
JOURNAL ARTICLE
Growth of Namibian silver kob Agyrosomus inodorus based on otoliths and mark-recapture dataKirchner, CH, Voges, SF. 1999. Growth of Namibian silver kob Agyrosomus inodorus based on otoliths and mark-recapture data Vol. 21 pp.201–209.
2013
JOURNAL ARTICLE
Southern African Marine Linefish Species ProfilesMann, B.Q. 2013. Southern African Marine Linefish Species Profiles pp.343.
Status and criteria
NE
Assessor(s)
Sean Fennessy
Reviewer(s)
Animalia Coordinator
