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Teleostei (teleosts) > 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 Ecology

Freshwater; benthopelagic; depth range 95 - 97 m (Ref. 55898). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: endemic to Lake Malawi, only known from Lukoma Bay in Tanzania (Ref. 55898).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.9 cm SL male/unsexed; (Ref. 55898)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 16 - 17; Dorsal soft rays (total): 11; Anal spines: 3; Anal soft rays: 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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

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)

Data deficient (DD) ; Date assessed: 13 October 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Life cycle
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Anatomy
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Physiology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Placidochromis longus Hanssens, 2004