Polysteganus praeorbitalis, Scotsman seabream : fisheries

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Polysteganus praeorbitalis (Günther, 1859)

Scotsman seabream
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Native range | All suitable habitat | Point map | Year 2100
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Polysteganus praeorbitalis   AquaMaps   Data sources: GBIF OBIS
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Image of Polysteganus praeorbitalis (Scotsman seabream)
Polysteganus praeorbitalis
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Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterigi (pesci con pinne raggiate) > Perciformes (Perch-likes) > Sparidae (Porgies)
Etymology: Polysteganus: Greek, polys = a lot of + Greek, stego, stege = covered (Ref. 45335).  More on author: Günther.

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

; marino associati a barriera corallina; distribuzione batimetrica 20 - 100 m (Ref. 3198).   Subtropical; 17°S - 28°S

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

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

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL maschio/sesso non determinato; (Ref. 3198); common length : 35.0 cm TL maschio/sesso non determinato; (Ref. 3507); peso massimo pubblicato: 7.8 kg (Ref. 40637)

Short description Morfologia | Morfometria

Spine dorsali (totale): 12; Raggi dorsali molli (totale): 10; Spine anali 3; Raggi anali molli: 8. Small eye, deep preorbital, steep forehead (Ref. 3198).

Biologia     Glossario (es. epibenthic)

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 Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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. 120744)

  Vulnerabile, vedi Lista Rossa IUCN (VU) (A2bd); Date assessed: 02 December 2008

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesca: commerciale
FAO(Publication : search) | FishSource |

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione
Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
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Spawning aggregation
Fecundity
Uova
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Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
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Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
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Frequenze alleliche
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Estimates based on models

Preferred temperature (Ref. 115969): 23.5 - 26.3, mean 25.3 (based on 11 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00989 - 0.03347), b=3.02 (2.87 - 3.17), 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.
Resilienza (Ref. 120179):  Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High vulnerability (65 of 100) .
Price category (Ref. 80766):   Very high.