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Acanthopagrus berda (Fabricius, 1775)

Goldsilk seabream
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Acanthopagrus berda
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Iraq country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported from Khor Al-Zubair, North-West of the Arabian Gulf (Ref. 51878); entering Shatt-al-Arab, the confluence of the Tigris and Euphrates rivers (Ref. 115344). Also Ref. 3507.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/iz.html
National Fisheries Authority: http://www.bim.ie/index.html
Occurrences: Occurrences Point map
Main Ref: Hussain, N.A., A.K. Naiama and L.A.J. Al-Hassan, 1988
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Sparidae (Porgies)
Etymology: Acanthopagrus: Greek, akantha = thorn + Greek, pagros, a kind of fish (Ref. 45335);  berda: Name refers to the local vernacular name for the species; noun in apposition (Ref. 83673).

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

Marine; freshwater; brackish; demersal; oceanodromous (Ref. 51243); depth range ? - 50 m (Ref. 86942).   Tropical; 30°N - 35°S, 22°E - 103°E

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

Indian Ocean, South Africa, Mozambique, the Red Sea, Persian Gulf, India, Phuket (Andaman Sea, specimen lost), and Malaysia (Penang Island and Langkawi Island, near Singapore). Western Pacific specimens recorded as A. berda refer to Acanthopagrus pacificus (Ref. 86288).

Length at first maturity / Size / Weight / Age

Maturity: Lm 21.0, range 20 - 22 cm
Max length : 90.0 cm TL male/unsexed; (Ref. 3198); common length : 35.0 cm TL male/unsexed; (Ref. 5450); max. published weight: 3.2 kg (Ref. 3670); max. reported age: 14 years (Ref. 3627)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 11 - 12; Dorsal soft rays (total): 10 - 13; Anal spines: 3; Anal soft rays: 8 - 9. Diagnosis: This species is distinguished from all its congeners by the following characters: scale rows between fifth dorsal-fin spine base and lateral line 3.5; front edge of dorsal scaly area on head slightly convex, with small scales (fewer than 20) anteriorly; pored lateral-line scales 42-44; second anal-fin spine (2AS) longer than third anal-fin spine (3AS), 2AS/3AS ratio 1.23-1.50 (mean 1.36); strongly curved concavity on ventral edge of first two infraorbitals above rear end of maxilla, particularly obvious in specimens more than 13 cm standard length; scales on preopercle flange absent; anal-fin membrane dark; molariform teeth strongly developed along both jaws, teeth rows strongly curved laterally at rear of lower jaw (Ref. 83673).

Biology     Glossary (e.g. epibenthic)

Common in estuaries, relatively uncommon in freshwaters (Ref. 52193). It feeds on invertebrates, including worms, mollusks, crustaceans and echinoderms (Ref. 5213), and small fish (Ref. 3670, 52193). Breeds in winter at sea (Ref. 52193). Protandrous hermaphrodite (Ref. 55367). The flesh is excellent; sold fresh in markets. It is parasitised by the monogenean Anoplodiscus australis on the fins and body surface (Ref. 124057).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Size at sex change = 19.1 TL; age at sex change = 1.95 years (Ref. 55367).

Main reference Upload your references | References | Coordinator | Collaborators

Iwatsuki, Y. and P.C. Heemstra, 2010. Taxonomic review of the Western Indian Ocean species of the genus Acanthopagrus Peters, 1855 (Perciformes: Sparidae), with description of a new species from Oman. Copeia 2010(1):123-136. (Ref. 83673)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 28 June 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; gamefish: yes
FAO(Aquaculture systems: production; Fisheries: production; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 21.6 - 29, mean 27.8 (based on 856 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.01372 - 0.02526), b=2.97 (2.92 - 3.02), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.42 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.28-0.38; tmax=14; tm=1).
Fishing Vulnerability (Ref. 59153):  High vulnerability (56 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (68 of 100).
Price category (Ref. 80766):   Very high.