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Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Polysteganus: Greek, polys = a lot of + Greek, stego, stege = covered (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino associati a barriera corallina; oceanodromo (Ref. 51243); distribuzione batimetrica 30 - ? m (Ref. 5213). Subtropical; 17°S - 30°S
Western Indian Ocean: southern Mozambique to Durban, South Africa.
Size / Peso / Age
Maturity: Lm ?  range ? - 35 cm
Max length : 120 cm TL maschio/sesso non determinato; (Ref. 3507); common length : 80.0 cm TL maschio/sesso non determinato; (Ref. 3507); peso massimo pubblicato: 16.0 kg (Ref. 4699)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 12; Raggi dorsali molli (totale) : 10; Spine anali: 3; Raggi anali molli: 8 - 9.
Found over rocky reef and banks of deep waters. Carnivorous species which feeds mainly on fish and squid (Ref. 5213). An excellent food fish. Sold fresh.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.01226 - 0.05148), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.60 se; based on food items.
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.18-0.28).
Fishing Vulnerability (Ref.
59153): High vulnerability (57 of 100).