Mauritania country information

Common names: Chien de mer roux, Gallo, Marajo
Occurrence: native
Salinity: brackish
Abundance: abundant (always seen in some numbers) | Ref:
Importance: minor commercial | Ref: Maigret, J. and B. Ly, 1986
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 244.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/mr.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Maigret, J. and B. Ly, 1986
National Database:

Classification / Names

Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Leptochariidae (Barbeled houndsharks)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

كلب البحر بِلِحْية, 细须雅鲨, Émissole barbue, ... more

Main reference

Compagno, L.J.V. 1984. (Ref. 244)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 77.0 cm TL male/unsexed; (Ref. 244); 82.0 cm TL (female); common length : 55.0 cm TL male/unsexed; (Ref. 26999)

Environment

Marine; brackish; demersal; depth range 10 - 75 m (Ref. 244), usually 10 - 60 m (Ref. 5377)

Climate / Range

Tropical; 20°C - 27°C, preferred ?; 22°N - 23°S, 26°W - 17°E

Distribution

Eastern Atlantic: Mauritania to Namibia.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Similar to species of Mustelus but nostrils with anterior flaps formed into distinct barbels (Ref. 5485).

Found on the continental shelf, especially abundant off river mouths on muddy bottoms. Salinity: 35-36 ppt. Oxygen: 3-4 ppm. Feeds on small bottom and littoral organisms like crustaceans, bony fishes, octopi and sponges. Viviparous (Ref. 50449), with 7 young in a litter (Ref. 244). Dental sexual dimorphism is manifested by males having greatly enlarged anterior teeth. Utilized fresh, smoked or dried salted for human consumption, skin for leather.

IUCN Red List Status (Ref. 115185)

Near Threatened (NT)

Threat to humans

Harmless

Human uses

Fisheries: minor commercial

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 1.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.8 ±0.49 se; Based on food items.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (Fec=7)

Vulnerability (Ref. 59153)
Low to moderate vulnerability (33 of 100)

Price category (Ref. 80766)
Unknown

Leptocharias smithii (Müller & Henle, 1839)