分類 / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Petrotilapia: Latin,petra = stone + Bechuana, African native thiape = fish (Ref. 45335); flaviventris: The name flaviventris, from the Latin words flavus, meaning yellow, and venter, meaning the underside or belly, referring to the yellow color on the ventral side of this species; a noun in apposition (Ref. 87181).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 外洋の. Tropical; 12°S - 13°S, 34°E - 35°E
Africa: Lake Malawi in Malawi, Mozambique and Tanzania (Ref. 87181).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 11.1 cm SL オス/雌雄の選別がない; (Ref. 87181)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 17 - 19; 背鰭 (合計) : 8 - 9; 肛門の骨: 3; 臀鰭: 7 - 8. Diagnosis: Absence of a dark submarginal band in the dorsal fin distinguishes Petrotilapia flaviventris from males of P. microgalana, P. genalutea, P. nigra, P. chrysos, P. mumboensis, and P. pyroscelos, which have such a band (Ref. 87181). Adult males of P. flaviventris are yellow on ventral and mid flank with scales outlined in blue; the dorsal one-third is blue to gray with yellow and orange highlights; cheeks and throat are yellow to orange; males of P. tridentiger are light blue with dark blue bars; while those of P. xanthos are yellow; adult male, and female, P. palingnathos have distinctly retrognathous jaws and can thus be distinguished from those of P. flaviventris (Ref. 87181). Females of P. flaviventris are yellow brown with interrupted black horizontal stripes and with a background colouration fading to dark brown dorsally, which distinguishes them from those of P. tridentiger, which are brown, and from P. chrysos and P. microgalana, which are golden yellow; females of P. flaviventris are further distinguished from those of P. xanthos, which are light brown (Ref. 87181).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Lundeba, M., J.R. Stauffer Jr. and A. F. Konings, 2011. Five new species of the genus Petrotilapia (Teleostei: Cichlidae), from Lake Malawi, Africa. Ichthyol. Explor. Freshwat. 22(2):149-168. (Ref. 87181)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
Human uses
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 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
