Squalus is a genus of dogfish sharks in the family Squalidae. Commonly known as spurdogs, these sharks are characterized by smooth dorsal fin spines, teeth in upper and lower jaws similar in size, caudal peduncle with lateral keels; upper precaudal pit usually present, and caudal fin without subterminal notch.

The spiny dogfish (Squalus acanthias), spurdog, mud shark, or piked dogfish [4] is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order. [5] While these common names may apply to several species, Squalus acanthias is distinguished by two spines (one anterior to each dorsal fin) and ...

The spiny dogfish (Squalus acanthias), spurdog, mud shark, or piked dogfish is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order. While these common names may apply to several species, is distinguished by two spines (one anterior to each dorsal fin) and no anal fin.

Also known as the spiny dogfish, the spurdog is a predator that feeds on bony fish, and sometimes even smaller sharks! It is a migratory species that spends the winter months in deep water, and the summer months in warm coastal waters. They often travel in groups which makes them an easier target for fisheries.

Among the myriad species, the Spiny Dogfish, also known as the Spurdog Shark (Squalus acanthias), stands out for its unique characteristics, including spines, venomous dorsal fins, and a reputation for being one of the ocean’s most intriguing creatures.

2024年4月10日 · The spurdog shark, aka spiny dogfish, is a smaller species of shark that hails from the temperate and subtropical waters of the Atlantic, Indian, and Pacific Oceans. They can be found at depths of up to 3,281 feet.

The longnose spurdog shark is a common, deepwater shark of the dogfish shark family, Squalidae, which belongs to the order Squaliformes along with the bramble sharks and rough sharks. The scientific name of the longnose spurdog shark is Squalus blainvillei.

Spiny Dogfish or Spurdog (Squalus acanthias) identification guide, biology, and image gallery.

Fact Sheet: Spurdog Spiny dogfish sharks (spurdog) are: • exceptionally slow-growing and vulnerable to overfishing • heavily exploited primarily for European demand for meat • classified by the IUCN as Critically Endangered in the Northeast Atlantic • inadequately protected and in danger of collapse

The shortnose spurdog (Squalus megalops) also known as the piked spurdog is a small shark located primarily off the coast of Southern Australia and South Africa. [2] The shortnose spurdog's size is dependent on the sex of the animal.