Divandu albimarginatus : fisheries

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Divandu albimarginatus Lamboj & Snoeks 2000

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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Cichliformes (Cichlids, convict blennies) > 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: milieu / climate zone / depth range / distribution range Ecología

; agua dulce pelágico.   Tropical

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

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

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 12.1 cm SL macho / no sexado; (Ref. 81260)

Short description Morfología | Morfometría

Espinas dorsales (total): 13 - 16; Radios blandos dorsales (total): 9-12; Espinas anales 3; Radios blandos anales: 7 - 8; Vértebra: 24 - 25. Diagnosis: relatively deep-bodied (Ref. 52307, 81260), particularly so in large specimens (depth 27.8-40.2% SL)(Ref. 8160). 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 (Ref. 45129, 52307, 81260). 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 (Ref. 81260). Dorsal, anal and pelvic fins (Ref. 81260), and upper (Ref. 52307, 81260) and lower (Ref. 52307) edge of caudal fin, with narrow red margin (Ref. 52307, 81260), caudal fin also with thin white submargin (Ref. 52307). Lower edge of caudal with white margin; metallic (silvery) flush below red margin on soft dorsal fin (Ref. 81260).

Biología     Glosario (por ej. 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). Feeds on small particles (both animal- and plantbased), detritus and aufwuchs (Ref. 52307). Polygamous, ovophilic, female mouthbrooder (Ref. 81260). Possibly larvophilic (Ref. 52307).

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

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

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. 123251)

  Least Concern (LC) ; Date assessed: 16 February 2009

CITES (Ref. 123416)

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

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | 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 | Árbol de la vida | Wikipedia(Go, búsqueda) | World Records Freshwater Fishing | Zoobank | Expediente Zoológico

Estimates 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), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  2.6   ±0.3 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.).
Vulnerability (Ref. 59153):  Low vulnerability (16 of 100) .
Price category (Ref. 80766):   Unknown.