Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Sparidae (Porgies)
Etymology: Polysteganus: Greek, polys = a lot of + Greek, stego, stege = covered (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 20 - 100 m (Ref. 3198). Subtropical, preferred ?; 17°S - 28°S

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Western Indian Ocean: known only from Beira, Mozambique to Algoa Bay, South Africa.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 90.0 cm TL male/unsexed; (Ref. 3198); common length : 35.0 cm TL male/unsexed; (Ref. 3507); max. published weight: 7.8 kg (Ref. 40637)

Short description Morphology | Morphometrics

Dorsal spines (total): 12; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 8. Small eye, deep preorbital, steep forehead (Ref. 3198).

Occurs in deep offshore reefs ranging from 20 to 100 m. Feeds on large crabs, crayfish, a variety of reef fish and squid. Spawns in winter. Sold fresh (Ref. 3507).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Smith, J.L.B. and M.M. Smith, 1986. Sparidae. p. 580-594. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3198)

IUCN Red List Status (Ref. 115185)

Vulnerable (VU) (A2bd)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01778 (0.00967 - 0.03270), b=3.03 (2.88 - 3.18), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic Level (Ref. 69278): 4.5 ±0.80 se; Based on food items.

Resilience (Ref. 69278): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).

Vulnerability (Ref. 59153): High vulnerability (65 of 100) .

Price category (Ref. 80766): Very high.

Polysteganus praeorbitalis (Günther, 1859)