Malawi country information

Common names: [No common name]
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of Petrotilapia xanthos: 'Malawi: Lake Malawi: Gallireya Reef, 10°30.0'S 34°14.1'E' (Ref. 87181). Known from Lake Malawi (Ref. 87181).
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: Lundeba, M., J.R. Stauffer Jr. and A. F. Konings, 2011
National Database:

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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Petrotilapia: Latin,petra = stone + Bechuana, African native thiape = fish (Ref. 45335); xanthos: The name xanthos, from the Greek, meaning yellow referring to the yellow breeding color of males; a noun in apposition (Ref. 87181).

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

; agua dulce pelágico. Tropical; 10°S - 11°S, 34°E - 35°E

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Africa: Gallireya Reef in Lake Malawi, Malawi (Ref. 87181).

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.0 cm SL macho / no sexado; (Ref. 87181)

Short description Morfología | Morfometría

Espinas dorsales (total): 17 - 19; Radios blandos dorsales (total): 6-10; Espinas anales 3; Radios blandos anales: 7 - 9. Diagnosis: The absence of a dark submarginal band in the dorsal fin distinguishes Petrotilapia xanthos from P. microgalana, P. genalutea, P. nigra, P. chrysos, P. mumboensis, and P. pyroscelos which have such a band (Ref. 87181). Adult males of P. xanthos are yellow, which distinguishes them from P. tridentiger, which are light blue with dark blue bars; they are also distinct from those of P. flaviventris, and P. palingnathos; males of P. flaviventris are yellow on ventral and mid flank with scales outlined in blue; the dorsal one-third is blue to gray with yellow and orange highlights; cheeks and throat yellow to orange; adult male, and female, P. palingnathos have distinctly retrognathous jaws and can thus be distinguished from those of P. xanthos (Ref. 87181). Females of P. xanthos are light brown, which distinguishes them from those of P. tridentiger, which are brown, from P. chrysos and P. microgalana, which are golden yellow, from those of P. flaviventris, which are yellow brown with interrupted black stripes and fading to dark brown dorsally; the melanin pattern in females of P. xanthos have both horizontal and vertical elements, which distinguishes them from those of P. chrysos, which lack a distinct melanin pattern and are completely yellow, and from P. microgalana and P. flaviventris, which have no vertical elements in their melanin pattern (Ref. 87181).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador : Kullander, Sven O. | Colaboradores

Lundeba, M., J.R. Stauffer Jr. and A. F. Konings, 2011. Five new species of the genus Petrotilapia (Teleostei: Cichlidae), from Lake Malawi, Africa. Ichthyol. Explor. Freshwat. 22(2):149-168. (Ref. 87181)

IUCN Red List Status (Ref. 130435)

Near Threatened (NT) (B1a+2a); Date assessed: 22 June 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías:

FAO(Publication : search) | FishSource |

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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

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

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).

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

Petrotilapia xanthos Lundeba, Stauffer & Konings, 2011