Mustelus canis (Mitchill, 1815)

Dusky smooth-hound
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Image of Mustelus canis (Dusky smooth-hound)
Mustelus canis
Picture by Flescher, D.

Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Mustelus: Latin, mustela, -ae = weasel (Ref. 45335).

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; 42°N - 44°S, 100°W - 46°W (Ref. 55309)

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: Lm 102.0, 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 Morfologi | Morfometri

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

Biologi     Ordlista (t.ex. epibenthic)

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 Könsmognad | Reproduktion | Lek | Ägg | Fecundity | 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. 119314)

  Near Threatened (NT) ; Date assessed: 01 October 2005

CITES (Ref. 115941)

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

Länder
FAO områden
Ekosystem
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synonymer
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Ägg
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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 7.8 - 27.5, mean 22.4 (based on 1206 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00234 (0.00145 - 0.00378), b=3.11 (2.97 - 3.25), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.6   ±0.2 se; Based on diet studies.
Resiliens (Ref. 69278):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.04-0.43; tm=2-5; tmax=7; Fec= 4-20).
Vulnerability (Ref. 59153):  Very high vulnerability (87 of 100) .
Price category (Ref. 80766):   Medium.