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Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Diplodus: Greek, diploos = twice + Greek, odous = teeth (Ref. 45335).
Issue
Issue on validity of subspecies: subspecies considered as valid in FB, elevated to species rank as Diplodus hottentotus (Smith, 1844) in Eschmeyer (CofF ver. Mar. 2011: Ref. 86697). Please send references, or more studies are needed.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina; brackvatten bottenlevande; djupintervall ? - 100 m. Subtropical
Western Indian Ocean: known only from southern Mozambique and South Africa.
Length at first maturity / Size / Vikt / Age
Maturity: Lm 28.0  range ? - ? cm
Max length : 60.0 cm TL hane/ej könsbestämd; (Ref. 3507); common length : 30.0 cm TL hane/ej könsbestämd; (Ref. 3507); rapporterad maxålder: 33 år (Ref. 26244)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 11; Mjukstrålar i ryggfenan (totalt) : 12 - 14; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 11. Young bright yellow between crossbars.
Inhabits coastal waters, mainly on rocky bottoms. Also enters estuaries, which are also used as nursery grounds. Feeds on fish, mollusks, crustaceans, worms, and other organisms. Has a nauseating odor; sold fresh in markets.
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Heemstra, P.C. and E. Heemstra, 2004. Coastal fishes of Southern Africa. National Inquiry Service Centre (NISC) and South African Institute for Aquatic Biodiversity (SAIAB), Grahamstown. 488 p. (Ref. 58304)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; sportfisk: ja
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00809 - 0.02051), b=3.06 (2.93 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.6 ±0.53 se; based on food items.
Generation time: 12.1 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (tm=6; tmax=33).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (68 of 100).