Varicorhinus dimidiatus Tweddle & Skelton, 1998

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Cypriniformes \| Cyprinidae
Synonyms	... more
Common names	Blacktop chiselmouth, Chramule malavijská, ... more

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Main reference

Tweddle, D. and P.H. Skelton. 1998. (Ref. 33082)
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Size / Weight / Age

Max length : 24.5 cm SL male/unsexed; (Ref. 33082); max. published weight: 400 g (Ref. 33082)

Environment

Benthopelagic; freshwater

Climate / Range

Tropical

Africa: River Ruo and several of its tributaries above Zoa Falls in Malawi.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal soft rays (total): 12 - 13; Anal soft rays: 8 - 9. Its dark olive dorsal surface and light golden ventral surface are sharply divided at the lower edge of the lateral line scale row. Its has relatively narrow mouth without barbels or with one pair of minute posterior barbels. The unbranched dorsal ray is flexible.

Occurs in fast flowing stretches of river and deeper pools. Common particularly in rocky pools. Feeds by scraping algae off rocks with its horny lower jaw. Varicorhinus xyrocheilus occurs sympatrically and syntopically with V. dimidiatus.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (41 of 100)	Not marketed/unknown

Entered by Torres, Armi G.

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Page last modified by : elaxamana, 15 July 2009

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