SPURDOG

(PIKED DOGFISH)

Squalus acanthias (Linnaeus, 1758)

 

Usual Size To believed 130cm
UK Record Weight

BOAT 21lb 3oz 7dr

SHORE 16lb 12oz 8dr

Identification The upper body is dark grey or black and white spots are usually present. The under- side is white. There are spines in front of both dorsal fins
Habitat Found within the upper layers down to depths of 900m. Mostly a mid-water and bottom schooling shark
Range Both and inshore and offshore species preferring a temperature range of between 7/15C
Food Fish eater (Herring, Sprats, Pilchards, Garfish, Sand eels, Flatfish and Cod species) although known to take crustaceans and cephalopods (Squid).
Reproduction Aplacentally viviparous (live bearing) Litter size between 1/20 pups which are 20/30cm at birth.
  • Females mature at 70/100cm
  • Males mature at 55/60cm
Additional Notes Known to live longer than 40 years.
References A Field Guide to The Sharks of British Coastal Waters - Vas 1991 FAO Species Catalogue 4 - Sharks of The World - Compagno Fishes of the North-Eastern Atlantic and the Mediterranean - Whitehead, Bauchot, Hureau, Nielsen, Tortonese Key to the Fishes of Northern Europe - Wheeler

 

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