Canada country information

Common names: Émissole douce
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ca.html
National Fisheries Authority: http://www.ncr.dfo.ca/home_e.htm
Occurrences: Occurrences Point map
Main Ref: Scott, W.B. and M.G. Scott, 1988
National Database:

Common names from other countries

Émissole douce, Boca dulce, 美星鲨, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Mustelus: Latin for weasel, an ancient name for sharks, possibly referring to the pointed snouts, swift movements and/or rapacious feeding behavior of smaller predatory sharks [strictly not tautonymous with Squalus mustelus Linnaeus 1758 since type was designated by the ICZN]. (See ETYFish); canis: Of islands, referring to occurrence at several Caribbean islands (Cuba, Jamaica, Grand Cayman, Puerto Rico, Nevis Island, Sint Eustatius, the Bahamas and Bermuda), where it appears to be the only species of Mustelus. (See ETYFish).
More on author: Mitchill.

Environment: milieu / climate zone / depth range / distribution range Ekologi

marina; brackvatten bottenlevande; havsvandrande (Ref. 51243); djupintervall 0 - 800 m (Ref. 55584), usually 18 - 200 m (Ref. 55309). Subtropical; 46°N - 44°S, 98°W - 31°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Atlantic: Massachusetts to Florida (USA), northern and western Gulf of Mexico, Venezuela, Cuba, Jamaica, Barbados, Bermuda, Bahamas; southern Brazil to northern Argentina; also western Gulf of Mexico and Antilles (Ref. 26938). Northwest Atlantic: Canada (Ref. 5951). Allopatric with Mustelus mustelus and sympatric with Mustelus norrisi. One of the two new allopatric species of canis- norrisi-like smooth-hounds in this region is often confused with this species (Ref. 244). The subspecies Mustelus canis insularis, occurring at several Caribbean islands, was identified by Heemstra (Ref. 27770).

Length at first maturity / Size / Vikt / Age

Maturity: L_m 99.8, range 95 - 100 cm
Max length : 150 cm TL hane/ej könsbestämd; (Ref. 244); common length : 100.0 cm TL hane/ej könsbestämd; (Ref. 6077); publicerad maxvikt: 12.2 kg (Ref. 40637)

Short description Bestämningsnycklar | Morfologi | Morfometri

A small, slim shark. Well-serrated dorsal fins, second nearly as large as first (Ref. 26938).

Found on continental and insular shelves and upper slopes, ranging from shallow inshore waters and the intertidal to 200 m, occasionally down to 579 m (Ref. 244). Occasionally found in freshwater. It is doubtful that this species can live in fresh water for an extended period of time (Ref. 244). Active swimmer and bottom feeder (Ref. 27549). Swims in packs or schools (Ref. 27549). Feeds on large crustaceans, mainly crabs, but also heavily on lobsters (Homarus) (Ref. 244). Probably non-territorial. Off the Atlantic coast of the USA, this species is migratory (Ref. 244). Viviparous (with a yolk-sac placenta), with 4 to 20 young in a litter. Longevity given as 7 years (Ref. 775) but appears too low. Utilized fresh, dried-salted, and smoked (Ref. 9987).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Viviparous (Ref. 26281, 35307, 50449), with a yolk-sac placenta; with 4 to 20 young per litter. Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | referenser | Koordinator : Compagno, Leonard J.V. | Medarbetare

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCN Red List Status (Ref. 130435)

Near Threatened (NT) (A2bd); Date assessed: 21 June 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: kommersiell; sportfisk: ja

FAO(fiskeri: produktion; publication : search) | FishSource | Sea Around Us

Ytterligare information

Trophic ecology
Födoslag
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Ecology
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Population dynamics
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Length-weight rel.
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Life cycle
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Genetics
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Estimates based on models

Preferred temperature (Ref. 115969): 7.8 - 27.5, mean 22.4 (based on 1206 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00195 (0.00165 - 0.00231), b=3.13 (3.08 - 3.18), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.6 ±0.2 se; based on diet studies.

Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.04-0.43; tm=2-5; tmax=7; Fec= 4-20).

Prior r = 0.16, 95% CL = 0.11 - 0.24, Based on 1 full stock assessment.

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (53 of 100).

Climate Vulnerability (Ref. 125649): High vulnerability (62 of 100).

Price category (Ref. 80766): Medium.

Mustelus canis (Mitchill, 1815)