分類 / Names
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Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Diplodus: Greek, diploos = twice + Greek, odous = teeth (Ref. 45335).
Issue
Issue on validity of subspecies: subspecies considered as valid in FB, elevated to species rank as Diplodus hottentotus (Smith, 1844) in Eschmeyer (CofF ver. Mar. 2011: Ref. 86697). Please send references, or more studies are needed.
Environment: milieu / climate zone / depth range / distribution range
生態学
海; 汽水性の 底生の; 深さの範囲 ? - 100 m. Subtropical
Western Indian Ocean: known only from southern Mozambique and South Africa.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 28.0  range ? - ? cm
Max length : 60.0 cm TL オス/雌雄の選別がない; (Ref. 3507); common length : 30.0 cm TL オス/雌雄の選別がない; (Ref. 3507); 最大記録サイズ: 33 年 (Ref. 26244)
背面の脊椎 (合計) : 11; 背鰭 (合計) : 12 - 14; 肛門の骨: 3; 臀鰭: 11. Young bright yellow between crossbars.
Inhabits coastal waters, mainly on rocky bottoms. Also enters estuaries, which are also used as nursery grounds. Feeds on fish, mollusks, crustaceans, worms, and other organisms. Has a nauseating odor; sold fresh in markets.
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Heemstra, P.C. and E. Heemstra, 2004. Coastal fishes of Southern Africa. National Inquiry Service Centre (NISC) and South African Institute for Aquatic Biodiversity (SAIAB), Grahamstown. 488 p. (Ref. 58304)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
水産業: 商業; ゲームフィッシュ: はい
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00813 - 0.02041), b=3.06 (2.93 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.6 ±0.53 se; based on food items.
Generation time: 12.1 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回復力 (Ref.
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (tm=6; tmax=33).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (68 of 100).