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Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Diplodus: Greek, diploos = twice + Greek, odous = teeth (Ref. 45335).
More on author: Linnaeus.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; salmastro benthopelagico; distribuzione batimetrica 0 - 90 m (Ref. 4781). Subtropical; 49°N - 27°N, 19°W - 42°E
Eastern Atlantic: Canary islands, also found along the coast of Portugal northward to the Bay of Biscay, Mediterranean, Black Sea and Sea of Azov (Ref. 4781).
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 11.6, range 8 - 19.6 cm
Max length : 28.0 cm TL maschio/sesso non determinato; (Ref. 124816); common length : 13.0 cm TL maschio/sesso non determinato; (Ref. 3397); peso massimo pubblicato: 330.00 g (Ref. 115876); Età massima riportata: 17 anni (Ref. 124518)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 11; Raggi dorsali molli (totale) : 11 - 13; Spine anali: 3; Raggi anali molli: 11 - 12.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Inhabit chiefly Zostera seagrass beds but also found on Posidonia beds and sandy bottoms, rarely on rocky bottoms. Carnivorous, feed on worms, crustaceans, mollusks, echinoderms and hydrozoans. The sexes are separated, although these fish are potential hermaphrodites; certain individuals are protandric (Ref. 4781).
Normally sexes are separate but some individuals are protandrous due to geographical variation in sexual pattern (Ref. 103751). However, histological studies confirm no degenerating functional tissue of one sex (e.g. vitellogenic or later-stage follicles) and no proliferation of tissue of the other sex can be found on this species indicating the absence of sex change. This particular condition is also known as nonfunctional hermaphroditism previously known as rudimentary hermaphroditism (Ref. 91314). Also Ref. 28504.
Bauchot, M.-L. and J.-C. Hureau, 1990. Sparidae. p. 790-812. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 3688)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale; Pesce da pesca sportiva: si
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 14.8 - 21.1, mean 18.3 °C (based on 220 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.01117 - 0.01356), b=3.06 (3.04 - 3.08), in cm total length, based on LWR estimates for this species (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.6 ±0.0 se; based on diet studies.
Generation time: 4.5 (2.4 - 6.4) years. Estimated as median ln(3)/K based on 18
growth studies.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.2-0.5; tmax=7; Fecundity=18,000 - 212,000).
Prior r = 0.54, 95% CL = 0.35 - 0.80, Based on 3 full stock assessments.
Vulnerabilità della pesca (Ref.
59153): Moderate vulnerability (36 of 100).
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Vulnerabilità climatica (Ref.
125649): Moderate vulnerability (36 of 100).
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Nutrienti (Ref.
124155): Calcium = 83.2 [48.2, 160.3] mg/100g; Iron = 0.984 [0.561, 1.738] mg/100g; Protein = 19.3 [18.4, 20.3] %; Omega3 = 0.427 [0.224, 0.818] g/100g; Selenium = 23.7 [11.6, 43.4] μg/100g; VitaminA = 20.1 [6.8, 55.9] μg/100g; Zinc = 1.06 [0.72, 1.48] mg/100g (wet weight);
