التصنيف / 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); koningsi: Named in honor of Ad Konings, a well-known author and publisher on cichlids, with particular interest in the Lake Malawi (Konings, 1995; 2001) and Lake Tanganyika cichlid faunas (Ref. 55898).
Eponymy: Dr Adrianus Franciscus Johannes Marinus Maria ‘Ad’ Konings (d: 1956) is a Dutch ichthyologist, cichlid aquarist, photographer, writer and publisher who began collecting cichlids at the age of fourteen. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة; نطاق العمق 119 - 123 m (Ref. 55898). Tropical
Africa: endemic to Lake Malawi, only known from Nkhotakota in Malawi (Ref. 55898).
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 6.7 cm SL ذكر/ مختلط الجنس; (Ref. 55898)
الأشواك الظهرية (المجموع) : 14 - 15; الأشعة الظهرية الناعمة (المجموع) : 10 - 11; شوكة شرجية: 3; أشعه شرجية لينه: 9 - 10. Diagnosis: head length 36.6-38.1 %SL; snout length 33.5-34.5 % head length; lower jaw length 33.5-34.5 % head length; outer oral teeth unicuspid; no inner oral tooth rows; premaxillary pedicel length 30.6-30.6 % head length; cheek depth 23.7-25.1 % head length; lachrymal depth 21.6-22.0 % head length; orbital width 41.5-42.9 % head width; lower pharyngeal dentition enlarged and molariform; body depth 38.8-39.6 %SL (Ref. 55898).
Body shape (shape guide): fusiform / normal.
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
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 Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
أدوات
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
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).
مستوى غذائي (مرجع
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
المرونه (مرجع
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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