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Perciformes (Perch-likes) >
Sparidae (Porgies)
Etymology: Diplodus: Greek, diploos = twice + Greek, odous = teeth (Ref. 45335).
البيئة / مناخ / المدى
البيئة
; بحري; مياه مخلوطة قاعية التغذية و المعيشة; نطاق العمق 0 - 90 m (Ref. 4781). Subtropical, preferred 11°C (Ref. 107945); 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).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 11.2, range 8 - 19.6 cm
Max length : 25.3 cm TL ذكر/ مختلط الجنس; (Ref. 33903); common length : 13.0 cm TL ذكر/ مختلط الجنس; (Ref. 3397); العمر: 7 سنين (Ref. 26328)
الأشواك الظهرية (المجموع): 11; الأشعة الظهرية الناعمة (المجموع): 11-13; شوكة شرجية 3; أشعه شرجية لينه: 11 - 12
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)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
استخدامات بشرية
مصائد: تجاري; لعبة سمكه: نعم
مزيد من المعلومات
مراجعالأستزراع المائيملف الأستزراع المائيسلالاتجينيتواتر الأليلالتوريثالأمراضمعالجةMass conversion
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مصادر علي الأنترنت
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.01088 - 0.01329), b=3.07 (3.05 - 3.09), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.6 ±0.0 se; Based on diet studies.
المرونه (Ref.
69278): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (K=0.2-0.5; tmax=7; Fecundity=18,000 - 212,000).
Prior r = 0.68, 2 SD range = 0.38 - 1.22, log(r) = -0.39, SD log(r) = 0.29, Based on: 2 M, 16 K, 9 tgen, 1 tmax, 3 Fec records
عرضة للخطر (Ref.
59153): Low to moderate vulnerability (27 of 100) .
