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Haplochromis bwathondii  Niemantsverdriet & Witte, 2010

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Haplochromis bwathondii
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drawing shows typical fish in this Family.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335);  bwathondii: Named in honour of Prof. Dr. Philip O.J. Bwathondi, Director General of the Tanzania Fisheries Research Institute (TAFIRI) from August 1983 until the end of 2006, for supporting the research of the Haplochromis Ecology Survey Team (HEST) in many ways (Ref. 85523).

Environment / Climate / Range Ecology

Freshwater; pelagic.   Tropical

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

Africa: Lake Victoria (Ref. 85523).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 85523)

Short description Morphology | Morphometrics

Vertebrae: 28 - 30. Haplochromis bwathondii is a small sized (<9 cm SL), micrognathic species with a normal to relatively slender body outline, with bicuspid and tricuspid teeth in the oral jaws and a moderately curved dorsal head profile (Ref. 85523). It has a melanin pattern of dusky, interrupted, longitudinal bands and vertical bars, producing a so-called 'chess board pattern' (Ref. 85523). This pattern also occurs in several oral shelling molluscivores, insectivores and algae scrapers, but these species generally are larger, have a strongly curved dorsal head profile and a lower jaw length/width ratio of less than 1.5, whereas in H. bwathondii it ranges from 2.0 to 2.8 (Ref. 85523). Haplochromis bwathondii differs from other small species with a 'chess board pattern' and a lower jaw length/width ratio of more than 1.5, H. sphex and H. sauvagei, in live colouration of sexually active males, by having red in the rostral part of the body; further, it differs from H. sphex by having a deeper body and a larger eye (Ref. 85523).

Biology     Glossary (e.g. epibenthic)

Mainly pelagic. Found mainly in the sub-littoral areas of the Mwanza Gulf over mud bottoms. Before the ecological changes in Lake Victoria, this species fed mainly on Cyanophyta, both during day and night. A female mouth brooder (Ref. 85523).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Mouth brooding done by the female (Ref. 85523).

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

de Zeeuw, M.P., M. Mietes, P. Niemantsverdriet, S. ter Huurne and F. Witte, 2010. Seven new species of detritivorous and phytoplanktivorous haplochromines from Lake Victoria. Zool. Meded. Leiden 84:201-250. (Ref. 85523)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00709 - 0.03231), 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):  3.3   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153):  Low vulnerability (12 of 100) .