Malawi country information

Common names: Chisawasawa
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Nkhotakota, Monkey Bay, and the middle part of the southeast arm of Lake Malawi (Ref. 55898). Also Ref. 4985, 5595.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mi.html
National Fisheries Authority: http://isp.msu.edu/AfricanStudies/Plea/mfri.htm
Occurrences: Occurrences Point map
Main Ref: Hanssens, M., 2004
National Database:

Common names from other countries

波氏龙占丽鱼, Chisawasawa, 波氏龍占麗魚, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> 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); polli: Named in honour of Dr. Max Poll, who was a well known Belgian ichthyologist; his revision of the Lake Tanganyika cichlids (Poll, 1956) is the most important taxonomic study of this fauna to date (Ref. 55898).

Environment: milieu / climate zone / depth range / distribution range Ekologi

; sötvatten bottenlevande; djupintervall 49 - 126 m (Ref. 55898). Tropical; 12°S - 15°S

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Africa: Endemic to the southern part of Lake Malawi.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 14.9 cm SL hane/ej könsbestämd; (Ref. 55898)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 16 - 17; Mjukstrålar i ryggfenan (totalt) : 9 - 10; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 8 - 9. Diagnosis: head length 32.3-34.8 %SL; head width 34.5-38.4 % head length; snout length 35.1-39.0 % head length; lower jaw length 36.4-38.8 % head length; premaxillary pedicel 28.3-30.7 % head length; outer oral dentition mainly unicuspid; lachrymal 23.1-26.1 % head length; cheek depth 19.1-23.3 % head length; interorbital width 16.2-17.8 % head length; lower pharyngeal teeth small and slender; predorsal distance 34.6-37.5 %SL; body depth 31.1-36.0 %SL (Ref. 55898).

Occurs usually in sandy and muddy bottoms at great depths and regularly taken below 75 m.

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator : Kullander, Sven O. | Medarbetare

Maréchal, C., 1991. Lethrinops. p. 233-240. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 4985)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 20 June 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: kommersiell; Akvarium: Kommersiell

FAO(Publication : search) | FishSource |

Ytterligare information

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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).

Trofisk nivå (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

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

Price category (Ref. 80766): Unknown.

Placidochromis polli (Burgess & Axelrod, 1973)