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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 / пределы глубины / distribution range
экология
морской; солоноватоводный донно-пелагический; пределы глубины 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 / Size / Вес / Возраст
половая зрелость: Lm 11.6, range 8 - 19.6 cm
Max length : 28.0 cm TL самец/пол неопределен; (Ref. 124816); common length : 13.0 cm TL самец/пол неопределен; (Ref. 3397); наибольший вес (опубликованные данные): 330.00 g (Ref. 115876); наибольший возраст (опубликованны данные): 17 годы (Ref. 124518)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 11; членистые (мягкие) лучи спинного плавника (общее число) : 11 - 13; колючие лучи анального плавника: 3; членистые (мягкие) лучи анального плавника: 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)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-1)
Угроза для людей
Harmless
Использование человеком
рыболовство: коммерческий; объект спортивного рыболовства: да
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Estimates based on models
Preferred temperature (ссылка
123201): 14.8 - 21.1, mean 18.3 °C (based on 220 cells).
Phylogenetic diversity index (ссылка
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.01096 - 0.01319), b=3.07 (3.05 - 3.09), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (ссылка
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.
устойчивость к внешним воздействиям (ссылка
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (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).
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Climate Vulnerability (Ref.
125649): Moderate vulnerability (36 of 100).
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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);
