Ladigesia roloffi  Géry, 1968

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

Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Alestidae (African tetras)
Etymology: Ladigesia: After Dr. Ladiges, ichthyologist, 1935; he studied killifishes.   More on author: Géry.

Environment / Climate / Range Ecology

Freshwater; pelagic; pH range: 6.0 - 7.0; dH range: ? - 10.   Tropical; 22°C - 26°C (Ref. 1672)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 3.1 cm SL male/unsexed; (Ref. 2880)

Short description Morphology | Morphometrics

Anal spines: 3; Anal soft rays: 13 - 14. Small sized fish with incomplete lateral line and naked dorsal part (of about 3 scales wide) from behind the opercle to the adipose fin. Parietal fontanel not closed. Part of paired fins and area above eye are glossy bright red. Non branched rays of dorsal and caudal and the tips of branched rays are black. No humeral spot. Gill rakers on first ceratobranch.

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

Africa: Kasewe in the Gbangbaia basin (small stream systems west of Jong) and Sewa River in Sierra Leone. Reported from the Du River in Liberia (Ref. 13331).

Biology     Glossary (e.g. epibenthic)

Monospecific.

Main reference Upload your references | References | Coordinator | Collaborators

Paugy, D., 1990. Characidae. p. 195-236. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren et O.R.S.T.O.M., Paris, 384 p.

IUCN Red List Status (Ref. 90363)

  Endangered (EN) (B1ab(iii)+2ab(iii))

Threat to humans

  Harmless




Human uses

Aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
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Ecology
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Common names
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Summary page | Point data | Common names | Photos

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 empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01137 (-0.16567 - 0.18842), b=3.00 (2.91 - 3.10), based on LWR estimates for this family-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.3 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 (10 of 100) .
Price category (Ref. 80766):   Unknown.