The dogfish is one of the shark species that facing the danger of extinction in future. Explore this article to know more interesting facts & amazing information on spiny dogfish. Females and males usually live in separate swarms. Dogfish eyes are bright yellow and cat-like. Along the Atlantic coast, spiny dogfish are found from Labrador south to Florida but are most … They are preyed upon by larger species of shark, including larger spiny dogfish, and by larger fishes (such as cod and hake), seals, and killer whales. Source: https://bit.ly/3f7ZB9H Photo Credit: NOAA CC License: https://bit.ly/3f6QLcb Spiny Dogfish Facts The quite evocative term of Spiny Dogfish perfectly serves as one of the common names for one of the best known members of the Squalidae Family of sharks. They live both inshore in shallow waters and offshore over the … Spiny Dogfish Facts . These sharks have a very slender body with a … These particular sharks prefer the warmer coastal waters, however, they have been known to frequent the freezing cold water around Antarctica. The eyes of this species are quite large. This has given the dogfish a bad reputation among fishermen. On the front of each dorsal fin there is a sharp spine attatched to them, giving the spiny dogfish its name. The spiny dogfish (Squalus acanthias) is one of the most common and well known species of dogfish. The dogfish poses little threat to humans, but if it is not handled properly, the spines on its dorsal fins can give a harmful wound. 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. Meet the Pacific spiny dogfish As their name suggests, spiny dogfish sharks sport sharp, venomous (poisonous) spines in front of each dorsal fin. Today spiny dogfish is valued as food in many countries. Pec­toral fins posses curved mar­gins and rounded free rear tips. The spiny dogfish is feeds mainly on pelagic fish such as herring, menhaden, capelin, sand lance, and mackerel. Dogfish is the name for a few small sharks of several different families. Federal and state recovery plans are currently in place but are continually challenged. Spiny Dogfish are a species of smaller sharks that are found off the coast of every continent except Antarctica. ‘Spiny dogfish’ is also known as ‘mud shark’, ‘thorndog’, ‘spurdog’, ‘Pacific … Estimates of the dogfish's life span range from 30-100 years. Since the species is a late maturing fish, it takes a while to rebuild the population. They move into the Gulf of St. Lawrence and into waters off Southern Labrador and around the rest of Newfoundland by July. The most widely known species is Squalus acanthias, called the spiny dogfish, spurdog, or skittle dog. This shark forms the food of many people in Europe, the United States, Canada, New Zealand and Chile. Spiny dogfish is found in all of the world’s temperate oceans and is known by numerous names. Facts Summary: The Deepwater Spiny Dogfish (Centrophorus squamosus) is a species of concern belonging in the species group "fishes" and found in the following area(s): Africa, Asia, Australia, Europe.This species is also known by the following name(s): Leafscale Gulper Shark, Nilson's Deepsea Dogfish. They mainly eat small, schooling pelagic fish such as herring, and small invertebrates such as shrimp, crab, and squid. The age and length of a spiny dogfish, at maturity, differs greatly with region. With some individuals, the spots completely disappear. Spiny dogfish are found in depths of 3000 feet (900 m) below the surface. It is abundant along northern Atlantic and Pacific coasts; a… The dorsal surface of the dogfish is slate-coloured and may have a brownish cast. The scientific name of the spiny dogfish is Squalus acanthias and it is from the family Squalidae, the family of dogfish sharks. This shark is gray or brownish on top and pale gray or white on its ventral side with irregular white spots on the top or sides of the body. It is found nearly worldwide and tends to inhabit shallow, temperate waters. The spiny dogfish has a slim, long body and a flattened head. They also prey on some 27 other fish species, such as capelin, cod, haddock, hake, herring, menhaden and ratfish, and 13 varieties of invertebrates, like krill, crabs, polychaete worms, jellyfish, ctenophores, amphipods, squid and octopus. It is abundant along northern Atlantic and Pacific coasts; a closely related, if not identical, form inhabits the southern half of the world. Most adult spiny dogfish measure from 2 to 4 ft. long. Spiny dogfish can be distinguished by its two spines, one anterior to each dorsal fin and the lack of an anal fin. The female spiny dogfish are longer than their male counterparts are. The two dorsal fins, the first larger than the second, have spines at their base. Spiny dogfish, also known as rock shark, rock cod, rock salmon, spurdog, mud shark and piked dogfish, is one of the best-known dogfish. Spiny Dogfish Facts Spiny Dogfish Description: The basic color of the shark is grey, with a brownish top and white spots on its ventral side. The spiny dogfish is the most common living shark, yet two populations in the northwest and northeast Atlantic are at great risk due to overfishing. By using this site, you agree to allow cookies to be placed. The second dorsal fin is about two-thirds the size of the first one and is located behind the pelvic fins. Estimates of the dogfish's life span range from 30-100 years. Habitat: bays, river mouths, and deeper water (above 2000 feet) Location: world-wide (warmer waters) Size: range between 2.2-4.5 feet long Description: There are two specific types of shark: Spurdog and Dogfish. Theseswarms are formed in order to hunt together, but also as protection against enemies. The maximum reported length of males is 39 inches (100 cm), and females is 49 inches (124 cm). Though females are slightly larger than males, the spiny dogfish is a relatively small shark, usually reaching only 3 to 4 feet in length and about 8 pounds in weight. They appear off Nova Scotia, in the Bay of Fundy and off southwestern Newfoundland in June. Until our research had been completed, neither a method for age determination nor growth rate have been validated in the northwest Atlantic. Other Facts: Spiny dogfish get their name from the poisonous spine by the dorsal fin. Concave rear margins the federal quota for the last 100 years for its oil rich liver was! 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