Mauritania country information

Common names: Chien de mer, Émissole lisse, Taess
Occurrence: native
Salinity: marine
Abundance: abundant (always seen in some numbers) | Ref: Maigret, J. and B. Ly, 1986
Importance: highly commercial | Ref: Maigret, J. and B. Ly, 1986
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Coastal species which is very abundant in Banc d'Arguin and in Lévrier Bay. Constitutes an major part of the artisanal fisheries in Mauritania (Ref. 5377). Also Ref. 244, 55783.
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) > Triakidae (Houndsharks) > Triakinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

كلب البحر الأملس النَّاعم, 星鲨, Émissole lisse, ... more

Main reference

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

Size / Weight / Age

Max length : 200 cm TL male/unsexed; (Ref. 27000); common length : 100.0 cm TL male/unsexed; (Ref. 26999); max. reported age: 24 years (Ref. 30745)

Length at first maturity
L_m ?, range 80 - ? cm

Environment

Marine; demersal; depth range 5 - 624 m (Ref. 56504), usually 5 - 50 m (Ref. 244)

Climate / Range

Temperate, preferred 26°C (Ref. 107945); 58°N - 34°S, 19°W - 36°E

Distribution

Eastern Atlantic: UK to the Mediterranean, Morocco and Canary Islands; possibly Azores, Madeira, Angola to South Africa; including Indian Ocean coast. Often referred to as Mustelus canis which is restricted to the western Atlantic.
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 large, plain or black-spotted smoothhound (Ref. 5578). Uniformly grey or greyish-brown above, white below (Ref. 5578).

Found on the continental shelves and uppermost slopes, from the intertidal region to at least 350 m depth (Ref. 244). Collected to depth of 624 m in the eastern Ionian Sea (Ref. 56504). Sometimes in midwater but prefers to swim near the bottom (Ref. 244). Feeds mainly on crustaceans, but also cephalopods and bony fishes (Ref. 244). Viviparous, with a yolk-sac placenta (Ref. 244). Taken by shore and ski-boat anglers (Ref. 5578). Utilized for human consumption, oil, and fishmeal (Ref. 244). Sexual maturity is reached at a length of 70-80 cm (Ref. 35388).

IUCN Red List Status (Ref. 115185)

Vulnerable (VU) (A2bd+3bd+4bd)

Threat to humans

Harmless

Human uses

Fisheries: highly commercial; gamefish: yes

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 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.8 ±0.3 se; Based on diet studies.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (K=0.06-0.12; tm=6-15; tmax=24; Fec=4)

Vulnerability (Ref. 59153)
High to very high vulnerability (74 of 100)

Price category (Ref. 80766)
Medium

Mustelus mustelus (Linnaeus, 1758)