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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.
Issue
This subspecies is reported to have no genetic difference between the subspecies Diplodus sargus cadenati. See V.S. Domingues et al. 2007. Journal of Experimental Marine Biology and Ecology 346 (2007):102-113 (F. M. Porteiro, pers.comm. 02/08). Presence in Canary Is. to be reviewed since D. bellottii and D. cadenati are recognized as valid species, not any more as subspecies of D. sargus.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
marino; salobre demersal; oceanodromo (Ref. 51243); rango de profundidad 0 - 50 m (Ref. 12460), usually 0 - 50 m (Ref. 13780). Subtropical; 48°N - 36°S, 29°W - 42°E
Northeastern Atlantic from Brittany (France) to Gibraltar, and Madeira I.; Mediterranean Sea and southwestern Black Sea.
Length at first maturity / Tamaño / Peso / Age
Madurez: Lm ?, range 25 - ? cm
Max length : 45.0 cm TL macho / no sexado; (Ref. 3397); common length : 22.0 cm TL macho / no sexado; (Ref. 3397); peso máximo publicado: 1.9 kg (Ref. 40637); edad máxima reportada: 10 años (Ref. 26328)
Espinas dorsales (total) : 11 - 12; Radios blandos dorsales (total) : 12 - 15; Espinas anales: 3; Radios blandos anales: 11 - 14. Body with 5 black and 4 grey vertical bands. Snout is longer than the eye diameter (Ref. 35388).
Body shape (shape guide): fusiform / normal.
Inhabits coastal rocky reef areas (Ref. 12460) and Posidonia oceanica beds. Like other sparids, it is very active and frequents the surf zone, primarily at dawn (Ref. 13780). Feeds on shellfish and other benthic invertebrates which it picks from the sediment (Ref. 5377).
Sexes separate or protandrous (Ref. 4781). In some areas, this species occurs as a digynic hermaphrodite, that is, males and females developing from intermediate juveniles (Ref. 52202). However, protandry with possible digyny was later confirmed (Ref. 103751). Reaches sexual maturity at 2 years, with an approximate size of 17 cm. Spawning happens from January to March. Egg size 0.8-0.9 mm; larval length at hatching 2.6 mm. Also Ref. 28504.
Bauchot, M.-L., 1987. Poissons osseux. p. 891-1421. In W. Fischer, M.L. Bauchot and M. Schneider (eds.) Fiches FAO d'identification pour les besoins de la pêche. (rev. 1). Méditerranée et mer Noire. Zone de pêche 37. Vol. II. Commission des Communautés Européennes and FAO, Rome. (Ref. 3397)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesquerías: escaso valor comercial; Acuicultura: comercial; pesca deportiva: si
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Referencia
123201): 15 - 24.1, mean 18.8 °C (based on 400 cells).
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.01049 - 0.01316), b=3.04 (3.01 - 3.07), in cm total length, based on LWR estimates for this species (Ref.
93245).
Nivel trófico (Referencia
69278): 3.4 ±0.1 se; based on diet studies.
Resiliencia (Referencia
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.11-0.25; tmax=10; tm=2).
Prior r = 0.54, 95% CL = 0.35 - 0.80, Based on 5 data-limited stock assessments.
Fishing Vulnerability (Ref.
59153): High vulnerability (57 of 100).
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Climate Vulnerability (Ref.
125649): Low to moderate vulnerability (26 of 100).
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Nutrients (Ref.
124155): Calcium = 74.5 [38.6, 152.0] mg/100g; Iron = 0.993 [0.559, 1.844] mg/100g; Protein = 19.7 [18.8, 20.6] %; Omega3 = 0.35 [0.20, 0.60] g/100g; Selenium = 20.9 [9.8, 39.7] μg/100g; VitaminA = 15 [5, 42] μg/100g; Zinc = 1.01 [0.69, 1.43] mg/100g (wet weight); based on
nutrient studies.
