Distichodus rostratus  Günther, 1864

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

Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335).   More on author: Günther.

Environment / Climate / Range Ecology

Freshwater; demersal; pH range: 6.5 - 7.5; dH range: ? - 15; potamodromous (Ref. 51243).   Tropical; 22°C - 28°C (Ref. 12468)

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 30 - ? cm
Max length : 76.0 cm TL male/unsexed; (Ref. 7094); max. published weight: 6.3 kg (Ref. 7094)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 21-26; Anal soft rays: 13 - 16. Body depth 2.7-3.6x, head length 3.3-5.5x SL. Caudal peduncle 0.7-1.1x longer than wide. Rounded snout. Eye diameter 3.3 (juveniles)-7x head length. Scaly caudal with round lobes. Gray body more or less dark. Upper part of dorsal with black lines formed by a series of points on the inter-radial membranes. Juveniles with transverse black irregular bands on the sides; one black spot at extremity of caudal peduncle, one black humeral spot and sometimes one orange humeral spot.

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

Africa: Senegal to the Chad basin. Absent in coastal basins between Gambia and Sassandra (Côte d'Ivoire) but Ref. 7094 and Ref. 272 report otherwise. Also found in the Nile (Ref. 2936).

Biology     Glossary (e.g. epibenthic)

Marco-herbivores, feed on submerged plants, Eichornia roots and periphyton (Ref. 28714).

Main reference Upload your references | References | Coordinator | Collaborators

Teugels, G.G., C. Lévêque, D. Paugy and K. Traoré, 1988. État des connaissances sur la faune ichtyologique des bassins côtiers de Côte d'Ivoire et de l'ouest du Ghana. Rev. Hydrobiol. Trop. 21(3):221-237.

IUCN Red List Status (Ref. 90363)

  Least Concern (LC) 

Threat to humans

  Harmless




Human uses

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

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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 empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01642 (-0.17853 - 0.21137), b=3.01 (2.90 - 3.12), based on LWR estimates for this family-BS (Ref. 93245).
Trophic Level (Ref. 69278):  2.0   ±0.0 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (52 of 100) .
Price category (Ref. 80766):   Unknown.