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Divandu albimarginatus  Lamboj & Snoeks, 2000

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Incertae sedis
Etymology: Divandu: Vernacular name used in Mayombe, Congo;  albimarginatus: From the white margin on the lower edge of the caudal fin in preserved specimens; an adjective.

Environment / Climate / Range Ecology

Freshwater; pelagic.   Tropical

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 12.1 cm SL male/unsexed; (Ref. 81260)

Short description Morphology | Morphometrics

Dorsal spines (total): 13 - 16; Dorsal soft rays (total): 9-12; Anal spines: 3; Anal soft rays: 7 - 8; Vertebrae: 24 - 25. Diagnosis: relatively deep-bodied, particularly so in large specimens (depth 27.8-40.2% SL); head short (HL 31.9-37.2% SL); snout generally shorter than postorbital length; ascending process of premaxilla about one third longer than dentigerous arm; outer and inner row teeth in oral jaws unicuspid (Ref. 81260). Laterosensory system in the lachrymal bone with 5 openings; infraorbital series complete (lachrymal bone and 4 other)(Ref. 45129, 81260). First pelvic fin ray longest in adults of both sexes (Ref. 45129), usually reaching anus or beyond (Ref. 81260). Pectoral fin somewhat shorter than pelvic; some dorsal and anal rays produced (branched dorsal rays 4-6, branched anal rays 4-5 longest), upper and lower caudal rays also produced in both sexes; caudal peduncle somewhat deeper than long (Ref. 81260). 2.3-3 scales between highest point of upper lateral line (about the 8-9th pored scale) and dorsal fin base; between the last 2-4 pored scale and the dorsal fin base 1 or 1 large and 1 very small scale (Ref. 45129). 12 circumpeduncular scales (Ref. 45129, 81260). Chest scales markedly smaller than flank scales (Ref. 81260). No sexual dimorphism in morphology or coloration (Ref. 45129). Coloration: base body colour pale brown, cheeks and ventrum somewhat paler; usually 6-7 vertical bars on flanks; opercular spot well marked; reddish black maculae on caudal, soft dorsal and anal fins, often forming distinct bands proximally on the fins; dorsal, anal and pelvic fins, and upper edge of caudal fin, with narrow red margin; lower edge of caudal with white margin; metallic (silvery) flush below red margin on soft dorsal fin (Ref. 81260).

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

Africa: Kouilou-Niari and Loeme-Loukene basins(Republic of Congo), Nyanga and upper Ngounie basins and the Ogowe River (Gabon) (Ref. 81260).

Biology     Glossary (e.g. epibenthic)

Inhabits the middle and lower parts of the river basins; collection sites are in regions with primary or secondary forests. The water is clear with transparency of more than 100 cm, acidity approximately neutral (pH 7-7.5) with low conductivity (50 µS) and temperatures 21-22°C. The species lives syntopically with Chromidotilapia mamonekenei, which is more abundant than D. albimarginatus (Ref. 45129). Polygamous, ovophilic, female mouthbrooder (Ref. 81260).

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

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

Lamboj, A. and J. Snoeks, 2000. Divandu albimarginatus, a new genus and species of cichlid (Teleostei: Cichlidae) from Congo and Gabon, Central Africa. Ichthyol. Explor. Freshwat. 11(4):355-360. (Ref. 45129)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

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 | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (16 of 100) .