分類 / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Placidochromis: Latin, placidus = of peaceful or tranquile appearance + Greek, chromis = a fish, perhaps a perch (Ref. 45335); obscurus: From the Latin "obscurus" = dark, referring to the relatively dark melanin pattern in mature males (Ref. 55898).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性; 深さの範囲 65 - 125 m (Ref. 55898). Tropical
Africa: endemic to Lake Malawi, present in the southern part of the lake (Ref. 55898).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 6.2 cm SL オス/雌雄の選別がない; (Ref. 55898)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 15; 背鰭 (合計) : 10 - 11; 肛門の骨: 3; 臀鰭: 9. Diagnosis: head length 32.3-34.5 %SL; snout length 28.5-29.5 % head length; snout blunt; lower jaw length 36.3-38.0 % head length; premaxillary pedicel length 22.5-26.3 % head length; lachrymal 16.9-20.0 % head length; 18-21 gill-rakers on lower limb of first arch; predorsal distance 35.4-36.5 %SL; body depth 35.5-37.4 %SL (Ref. 55898).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Hanssens, M., 2004. The deep-water Placidochromis species. p. 104-197. In J. Snoeks (ed.) The cichlid diversity of Lake Malawi/Nyasa/Niassa: identification, distribution and taxonomy. Cichlid Press, El Paso, USA. (Ref. 55898)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00674 - 0.03099), 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 (Ref.
69278): 3.2 ±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).
