Dasyatis garouaensis (Stauch & Blanc, 1962)

Smooth freshwater stingray

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

Classification	Elasmobranchii \| Rajiformes \| Dasyatidae
Synonyms	Potamotrygon garouaensis, ... more
Common names	Ray, Kunaman ruwa, 加鲁阿魟, ... more

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Main reference

Compagno, L.J.V. and T.R. Roberts. 1984. (Ref. 3497)
Other references | Biblio | Coordinator : McEachran, John | Collaborators

Size / Weight / Age

Max length : 40.0 cm WD male/unsexed; (Ref. 3497)

Environment

Demersal; freshwater

Climate / Range

Tropical

Africa: Benue River in Cameroon and Nigeria, and from the Niger River downstream from its confluence with the Benue. Specimens of this species have been identified from Lagos Lagoon and from the Cross River near Mamfé (Ref. 3497).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Vertebrae: 127 - 130. A moderately large and thin-bodied freshwater dasyatid; disc oval, flatter than in any other West African dasyatid, its depth only 8.7-11.0% of disc width; denticles on dorsal surface of disc highly variable, sometimes absent, always restricted to central portion; pearl spine absent or represented by 2-3 low denticles (Ref. 26277). Tip of snout projecting as a small triangular process (Ref. 31256). 16-18 teeth in upper jaw, 14-28 teeth in lower jaw (Ref. 31256). Disc and pelvic fins medium gray or gray-brown above, without spots or prominent markings, white below and without dark margins; tail darker or blackish, lighter below (Ref. 26277).

Ovoviviparous (Ref. 50449).


IUCN Red List Status (Ref. 57073)	Threat to humans
Vulnerable (VU) (B1+2cde, C2b)	Harmless

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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)

Very Low, minimum population doubling time more than 14 years (Assuming Fec<10)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (90 of 100)	Low

Entered by Sa-a, Pascualita

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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