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Common name (e.g. trout)
Genus + Species (e.g. Gadus morhua)
Elasmobranchii (sharks and rays) >
(Ground sharks) >
(Houndsharks) > Triakinae
Latin, mustela, -ae = weasel (Ref.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; demersal; oceanodromous (Ref.
); depth range 0 - 800 m (Ref.
), usually 18 - 200 m (Ref.
). Subtropical; 42°N - 44°S, 100°W - 46°W (Ref.
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.
). Northwest Atlantic: Canada (Ref.
). Allopatric with
and sympatric with
. One of the two new allopatric species of canis- norrisi-like smooth-hounds in this region is often confused with this species (Ref.
). The subspecies
Mustelus canis insularis
, occurring at several Caribbean islands, was identified by Heemstra (Ref.
Length at first maturity / Size / Weight / Age
, range 95 - 100 cm
Max length : 150 cm TL male/unsexed; (Ref.
); common length : 100.0 cm TL male/unsexed; (Ref.
); max. published weight: 12.2 kg (Ref.
A small, slim shark. Well-serrated dorsal fins, second nearly as large as first (Ref.
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.
). Occasionally found in freshwater. It is doubtful that this species can live in fresh water for an extended period of time (Ref.
). Active swimmer and bottom feeder (Ref.
). Swims in packs or schools (Ref.
). Feeds on large crustaceans, mainly crabs, but also heavily on lobsters (
). Probably non-territorial. Off the Atlantic coast of the USA, this species is migratory (Ref.
). Viviparous (with a yolk-sac placenta), with 4 to 20 young in a litter. Longevity given as 7 years (Ref.
) but appears too low. Utilized fresh, dried-salted, and smoked (Ref.
Life cycle and mating behavior
), with a yolk-sac placenta; with 4 to 20 young per litter. Distinct pairing with embrace (Ref.
, 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.
IUCN Red List Status (Ref.
Near Threatened (NT)
Threat to humans
Fisheries: commercial; gamefish: yes
; publication :
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Estimates of some properties based on models
Preferred temperature (Ref.
): 7.8 - 27.5, mean 22.4 (based on 1206 cells).
Phylogenetic diversity index (Ref.
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00229 (0.00142 - 0.00370), b=3.11 (2.97 - 3.25), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref.
Trophic Level (Ref.
): 3.6 ±0.2 se; Based on diet studies.
): Low, minimum population doubling time 4.5 - 14 years (K=0.04-0.43; tm=2-5; tmax=7; Fec= 4-20).
Prior r = 0.16, 2 SD range = 0.02 - 1.15, log(r) = -1.83, SD log(r) = 0.98, Based on: 2 K, 10 tgen, 1 Fec records
): Very high vulnerability (87 of 100) .
Price category (Ref.
Carpenter, Kent E.
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- 20 July 2016
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