Mauritania country information

Common names: Marajo, Requin, Taess
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: Mohamed Fall, K.O., 2005
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Present year-round in Banc d'Arguin (Ref. 5377). 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) > Hemigaleidae (Weasel sharks)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

قِرش سُرعوب أطلسي, 大西洋副沙条鲨, Milandre jaune, ... more

Main reference

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

Size / Weight / Age

Max length : 140 cm TL male/unsexed; (Ref. 5578); common length : 100.0 cm TL male/unsexed; (Ref. 26999)

Length at first maturity
L_m ?, range 75 - 90 cm

Environment

Marine; demersal; depth range ? - 100 m (Ref. 5578), usually 30 - 70 m (Ref. 10730)

Climate / Range

Tropical, preferred ?; 30°N -

Distribution

Eastern Atlantic: Cape Verde and Mauritania to northern Namibia (Ref. 244, 5578); possibly extending north to Morocco. Record from the Northwest Atlantic, specifically in New England, has not been verified even after an extensive survey of the area has been conducted.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. A slender weasel shark with a moderately long snout, large eyes, and a short, small mouth with small, serrated upper teeth and erect-cusped lower teeth (Ref. 5578). Light grey or bronze with longitudinal yellow stripes, fins plain; white below (Ref. 5578).

A very common inshore to offshore shark of the continental shelf occurring at depths of a few meters to slightly over 100 m (Ref. 244). A specialist feeder that prefers cephalopods, also feeds on small bony fishes (Ref. 244). Viviparous (Ref. 50449). Utilized fresh and dried salted for human consumption, and processed into fishmeal (Ref. 244).

IUCN Red List Status (Ref. 115185)

Data deficient (DD)

Threat to humans

Harmless

Human uses

Fisheries: 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

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5664 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.3 ±0.64 se; Based on food items.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (Fec=1)

Vulnerability (Ref. 59153)
High vulnerability (63 of 100)

Price category (Ref. 80766)
Unknown

Paragaleus pectoralis (Garman, 1906)