分類 / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Ptychochrominae
Etymology: Ptychochromis: Greek, ptyx, = fold + Greek, chromis = a fish, perhaps a perch (Ref. 45335); inornatus: From the lack of a series of large, dark lateral blotches on the flanks and its overall plain appearance compared to congeneric species.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水; 汽水性の 底生の漂泳性. Tropical; 14°S - 16°S
Africa: Madagascar.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 12.2 cm SL オス/雌雄の選別がない; (Ref. 41510)
背面の脊椎 (合計) : 13 - 14; 背鰭 (合計) : 9 - 11; 肛門の骨: 3; 臀鰭: 8 - 9; 脊つい: 26 - 27. No large, black blotches or bands arrayed in series along the lateral midline. Second pharyngobranchial tooth plate with 2 rows of teeth. Robust unicate process of the first epibranchial bone at least twice the diameter of the anterior arm. Reduced angle between arms of the first epibranchial. Gill rakers on lower limb 10 (modally). Supraoccipital crest with truncate and rounded postero-dorsal margin. Fin coloration in life deep orangish-red. Anterior chest scales embedded and reduced in size.
Specimens collected in shallow, clear, moderate to swift flowing water; also from deeper pools or from under overhanging banks and vegetation. Diet highly variable, apparently an omnivore (Ref. 41510).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Sparks, J.S., 2002. Ptychochromis inornatus: a new cichlid (Teleostei: Cichlidae) from northwestern Mdagascar, with a discussion on intrageneric variation in Ptychochromis. Copeia 2002(1):120-130. (Ref. 41510)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
絶滅危惧 (EN) (B1ab(iii)); Date assessed: 27 June 2016
Human uses
水産業: 興味がない
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 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.5 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).
