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Maylandia greshakei (Meyer & Förster, 1984)

William's mbuna
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Maylandia greshakei
Male picture by Zaitsev, O.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Maylandia: In honour of Hans J. Mayland, German ictiologist (Ref. 45335).

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

Freshwater; demersal; depth range 15 - 35 m. Tropical; 24°C - 26°C (Ref. 2059); 14°S - 15°S

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

Africa: endemic to Makokola in the southeast arm of Lake Malawi.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 13.4 cm TL male/unsexed; (Ref. 5684)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 17 - 18; Dorsal soft rays (total): 8 - 9; Anal spines: 3; Anal soft rays: 6 - 7. Gill rakers on first ceratobranchial 8-12; gill rakers on first epibranchial 2-3.

Biology     Glossary (e.g. epibenthic)

Inhabits the rocky biotope of the reefs, where the rocks are permanently covered with a layer of sediment. Feeds mainly from the phytoplankton in the open water. Territorial males feed from the biocover on the rocks (Ref. 5595). Oviparous (Ref. 205).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Oviparous (Ref. 205).

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

Stauffer, J.R. Jr., N.J. Bowers, K.A. Kellogg and K.R. McKaye, 1997. A revision of the blue-black Pseudotropheus zebra (Teleostei: Cichlidae) complex from Lake Malawi, Africa, with a description of a new genus and ten new species. Proc. Acad. Nat. Sci. Philad. 148:189-230. (Ref. 27596)

IUCN Red List Status (Ref. 130435)

  Near Threatened (NT) (B1a+2a); Date assessed: 11 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; aquarium: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Anatomy
Gill areas
Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaborators
References
References

Tools

Special reports

Download XML

Internet sources

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

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=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.0   ±0.00 se; based on food items.
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).
Price category (Ref. 80766):   Unknown.