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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Petrotilapia: Latin,petra = stone + Bechuana, African native thiape = fish (Ref. 45335); pyroscelos: The name pyroscelos is from the Greek pyros, meaning fire, and skelos, meaning leg, referring to the pelvic fins of males that have the color of fire; a noun in apposition (Ref. 87181).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 外洋の. Tropical; 12°S - 13°S, 34°E - 35°E
Africa: Lake Malawi in Malawi (Ref. 87181).
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 10.7 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 - 10; 肛門の骨: 3; 臀鰭: 7 - 8. Diagnosis: The dark submarginal band in the spinous part of the dorsal fin of both male and female distinguishes Petrotilapia pyroscelos from P. tridentiger, P. xanthos, P. flaviventris, and P. palingnathos, which lack such a band (Ref. 87181). Males of P. pyroscelos have blue and bronze ground color with 7-9 gray vertical bars, whitish to gray throat and purple cheek, which distinguishes it from P. genalutea, P. nigra, P. chrysos, P. microgalana and P. mumboensis; males of P. genalutea are dull gray-blue with 5-7 black vertical bars, have an orange-yellow cheek, and a black throat; males of P. nigra and P. chrysos are predominantly blue-black with 7-10 gray/brown bars, have a dark blue cheek, and a black throat; males of P. microgalana are bright blue with 5-7 faint black vertical bars, and have a light blue cheek and a yellow throat, while those of P. mumboensis are blue with 8 dark blue vertical bars, light blue cheeks, and a light blue to gray gular region (Ref. 87181). Females of P. pyroscelos are brown with faint blue and yellow highlights with a conspicuous black submarginal band in the dorsal fin; females of P. pyroscelos are distinguished from those of P. genalutea, P. nigra, P. chrysos, and P. microgalana by the brown to gray ground color on the flank which is beige or yellow in the other species and are distinguished from females of P. mumboensis which lack any horizontal elements of the flank’s pigmentation pattern (Ref. 87181).
Body shape (shape guide): fusiform / normal.
ライフサイクルと交尾行動
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 2025-2 (Global))
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01445 (0.00671 - 0.03113), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
回復力 (参照 120179) |
高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.). |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (15 of 100). 🛈 |