Classification / 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); longus: From the Latin "longus" = long, elongate, referring to its elongate body shape (Ref. 55898).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique; profondeur 95 - 97 m (Ref. 55898). Tropical
Africa: endemic to Lake Malawi, only known from Lukoma Bay in Tanzania (Ref. 55898).
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 4.9 cm SL mâle / non sexé; (Ref. 55898)
Épines dorsales (Total) : 16 - 17; Rayons mous dorsaux (Total) : 11; Épines anales: 3; Rayons mous anaux: 9. Diagnosis: small elongate species with 8-9 vertical bars below the dorsal fin; lachrymal shallow, 12.3-13.5 % head length; head shape normal; 1/1 inner tooth rows in oral jaws; snout 24.1-24.7 % head length; mouth 41.8-42.6 % head length (Ref. 55898).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).