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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.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক; ঈষৎ লোনা সমুদতলে ভাসমান বেনথোপেলাজিক; গভীরতার পরিসীমা 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).
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm 11.6, range 8 - 19.6 cm
Max length : 28.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 124816); common length : 13.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 3397); সবের্াচ্চ প্রকাশিত ওজন : 330.00 g (Ref. 115876); সর্বোচ্চ উলি্ল্লখিত বয়স : 17 বৎসর (Ref. 124518)
পৃষ্ঠীয় কাঁটা (মোট ) : 11; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 11 - 13; পায়ূ কাঁটা : 3; পায়ূর নরম পাখনা্তুন্ড: 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. 130435)
Threat to humans
Harmless
Human uses
মৎস্য: বাণিজ্যিক; শিকারযোগ্য মাছ: হঁ্যা
হাতিয়ার
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
123201): 14.8 - 21.1, mean 18.3 °C (based on 220 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.01093 - 0.01323), b=3.07 (3.05 - 3.09), in cm total length, based on LWR estimates for this species (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
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.
স্থিতিস্থাপক (Ref.
120179): মাধ্যম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১.৪-৪.৪ বৎসর (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.
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (36 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (36 of 100).
Nutrients (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);
