Dogfish Shark

Dogfish Shark Fish Species, Types, Diet, Facts, Size, Habitat, Lifespan, Reproduction, Attacks, Facts can be checked from here. Get more information about Dogfish shark from this page.

Dogfish Shark

The Squalidae family of shark in which various species belongs such as Spiny Dogfish, Spurdog, Mud Shark, Piked Dogfish is the few common species in this shark family. These are seen in the shallow waters and further offshore in the most of parts of the world.

What is Dogfish Shark

The population of the Squalus acanthias has been decreasing dramatically and now IUCN Red list of threatened species mentioned it vulnerable globally and declared critically endangered in the Northeast Atlantic.

Dogfish shark

Dogfish Shark Characteristics

Scientific NameSqualus Acanthias
Other NamesDog Shark, Grayfish, Pacific Grayfish, Spinarola, California
Average Size28-39 inches
Average WeightApprox 9 kg
Average Life Span25-100 yeas
Attacks per year16 in the U.S.

What does Dogfish shark look like?

The dogfish shark has dorsal fins and no anal fins. These sharks have dark green spots along its back. The caudal fin has asymmetrical lobes, which have a heterocercal tail. These species have the two spines that they use for the defense. The Glands exists on the base of the spines that can create mild venom.

Dogfish Shark Facts

  • The dogfish is one of the shark species that found in the temperature of water ranges from 5 to 15 degrees Celsius.
  • The scientific name of the dogfish is Squalus Acanthias.
  • The dogfish length can grow up to 1.6 m.
  • The dogfish have the color on the scale of grey to brown and sometimes with the white spots.
  • The primary diet of the dogfish depends on the smaller fish.
  • The dogfish have a pair of dorsal fins, one smaller than the other, but having both spines.

Dogfish Shark Attack

The attacks from the dogfish shark are not clear. The International Shark Attack File investigated around 155 incidents of alleged shark-human interaction occurs across the world in the 2017 year. There are more than 80 attacks are unprovoked while 30 attacks after provoked. These sharks are also recorded few times attacking the boats as well. Sometimes, the attacking species of shark doubtful or remain unconfirmed.

Dogfish Shark Life Span

The estimated lifespan of the dogfish shark is about 100 years. These sharks also get the maturity so much late as compared to other species of shark. These spiny dogfish are bottom dwellers and spend most of life in the depth of water.

Dog Shark, Grayfish, Pacific Grayfish

Dogfish Shark Diet

The dogfish sharks are the carnivorous animal and this is the reason that their diet contains purely meat-based diet. Their diet includes small fishes, squid, and crustaceans are the primary part of their meal.

Dogfish Shark Size

There is the slight difference in the size of the male and female Dogfish Shark. It is one of the small species of shark with an average length of 28 – 39 inches, and reaching a maximum weight of 9.8 kg.

Baby Dogfish Shark

The maturity in the dogfish sharks late as compared to other shark species. The dogfishes have the grayish brown color on their body. The reproduction in dogfish is aplacental viviparous that is also known as the ovoviviparity. The fertilization occurs internally. The eggs are surrounded by thin shells called candles with one candle usually surrounding several eggs.

Dogfish Shark Habitat

The dogfish sharks are generally found across the world in the tropical and sub-temperate water of North Atlantic and North Pacific Oceans. These sharks are seen also in the Black Sea and the Mediterranean Sea. These sharks are considered migratory between in the water temperature between 45 – 59 degrees Fahrenheit. The population is constantly decreasing from the various regions around the world.

Dogfish Shark Reproduction

The dogfish shark reproduces via aplacental viviparity and gives birth to the live young. About 2-11 pups are in each litter and these pups have the length between 8-12 inches long. The gestation period in these sharks is about 18 -24 months. The gestation period is longer than the elephants or whales. Male dogfish get the maturity quickly while females need to wait for 20 years to reach maturity.

The dogfish is one of the shark species that facing the danger of extinction in future. The population of the shark is dramatically decreasing in the various regions. You can explore this website to know about other shark species: Shark Species

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