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In dogfish
The spiny dogfishes of the family Squalidae possess a sharp spine in front of each of their two dorsal fins. The most widely known species is Squalus acanthias, called the spiny dogfish, spurdog, or skittle dog. It is abundant along northern Atlantic and Pacific coasts; a…
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In shark: Description and habits
A tagged spiny dogfish (Squalus acanthias) was recovered after traveling about 1,600 km (1,000 miles) in 129 days. Advances in tracking technologies include the use of satellite tags that continuously beam a signal to orbiting satellites whenever the shark surfaces and in that manner reveal north-south movements,…
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In chondrichthyan: Reproductive behaviour
The Atlantic spiny dogfish (Squalus acanthias) bears its young mostly during the winter, far out on the continental shelf of northeastern America, almost two years after mating.
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