However, in Australia there are management measures in fisheries where stock is more depleted including limited entry for the use of gill nets and longlines since 1984, and for all fishing sectors, TAC since 2000. Do you have images or videos of School Sharks? IUCN SSC Shark Specialist Group. inhabitat.com The endangered school shark is being sold as food in Australia Size Medium. Mature sharks range from 135 to 175 cm TL for males and 150 to 195 cm Tl for females. Contact Us | Contests | Press | Terms of Use | Privacy Policy The school shark is a migratory species. Die Weibchen haben traditionelle "Welpen" -Bereiche in geschützten Buchten und Flussmündungen, in denen die Jungen geboren werden. The school shark feeds primarily on fish. © 2019 Sharkwater Productions - The Truth Will Surface. FRDC Project 93/061 July 1997. 7.3K likes. The juvenile fish remain in these nursery areas when the adults move off to deeper waters. This species is most abundant in the cold to warm temperate continental seas, from the surf line and very shallow water to well offshore. Es kann bis zu 2 m lang werden. Stevens, J.D. Juveniles have black markings on their fins. In 2010, Greenpeace International added the school shark to its seafood red list. This species is dark bluish grey on their upper (dorsal) surfaces and white on their bellies (ventral surface). IUCN, Gland, Switzerland and Cambridge, UK. It is caught primarily by gillnets and longline fishing and to a lesser extent by trawling. Subsequent to the discovery of its high vitamin content it became the subject of a much larger scale fishery which developed as a result of the high prices obtainable for the fish and its liver. Die IUCN hat diese Art in ihrer Roten Liste der bedrohten Arten als vom Aussterben bedroht eingestuft . Common Length 160 cm . It occurs in the northeast Atlantic and Mediterranean Seas, where it is uncommon and Southwest Atlantic where it occurs between Patagonia and southern Brazil. The large mouth is crescent-shaped and the teeth are of a similar size and shape in both jaws. it also occurs around the southern coasts of Australia, including Tasmania, and New Zealand. It also occurs round the southern coasts of Australia, including Tasmania, and New Zealand. Vulnerable ( IUCN 3.1) Wissenschaftliche Klassifikation; Königreich: Animalia: Stamm: chor: Klasse: Chondrichthyes: Auftrag: Carcharhiniformes: Familie: Triakidae: Gattung: Galeorhinus Blainville, 1816: Spezies: G. galeus. In the El Rincon area of Argentina where gravid females occur, a restriction has been established for the fishing fleet during the months in which these sharks approach the shore. Although it is widely distributed, it is threatened by overexploitation in many parts of its range where it is targeted for its liver oil, flesh and fins. The school shark has a widespread distribution and is found mainly near the seabed around coasts in temperate waters, down to depths of about 800 metres (2,600 ft). Wissenschaftlicher Name; Galeorhinus galeus ( Linnaeus, 1758) Synonyme; Carc Animals tagged in the United Kingdom have been recovered in the Azores, the Canary Islands and Iceland. Reproduction Ovoviviparous. It feeds both in mid-water and near the seabed and its reproduction is ovoviviparous. School sharks aren’t one to swim up to you to say hi (unlike a playful porbeagle, maybe). Die Fütterung erfolgt sowohl im offenen Wasser als auch in der Nähe des Meeresbodens, da Sardinen und Tintenfische pelagische Tiere sind, während der Rest benthische Arten sind . Tiefseekabel und das durch den Stromfluss verursachte Magnetfeld können die Migrationswege stören. Der große Mund ist halbmondförmig und die Zähne haben in beiden Kiefern eine ähnliche Größe und Form. School shark segregate into schools according to size and sex. Gebräuchliche Namen sind auch Tope Shark , Snapper Shark und Soupfin Shark . Pups are sometimes caught inshore and some nursery areas are subject to siltation and their habitat may become degraded. Welpen werden manchmal an Land gefangen und einige Kindergartenbereiche sind verschlammt und ihr Lebensraum kann sich verschlechtern. Schulhaie sind auf ihren oberen (dorsalen) Oberflächen dunkel bläulich grau und auf ihren Bäuchen (ventralen Oberflächen) weiß. Sein Öl wurde durch ein ähnliches Produkt aus dem gefleckten Dornhai ( Squalus Suckleyi ) und anschließend durch Fischöle mit geringerer Potenz aus Mexiko und Südamerika ersetzt. Nach dieser Entdeckung wurde es Gegenstand einer viel größeren Fischerei, die sich aufgrund der hohen Preise für den Fisch und seine Leber entwickelte. Zu den Rezepten zählen der traditionelle Cazón en Adobo auf dem Festland und die Tollos auf den Kanarischen Inseln. School sharks are harvested anywhere they’re found, which is another reason why there are so many names: each culture and region has developed their own name for this commonly-caught shark. Hundshai Erhaltungszustand. Tagged individuals in Australia have travelled distances of 1,200 kilometres (750 mi) along the coast and others have turned up in New Zealand. Welpen im selben Wurf können unterschiedliche Vererber haben, möglicherweise weil Frauen in der Lage sind, Sperma für eine lange Zeit zu speichern Zeit nach der Paarung. A workaround in Australian law allows the school shark to be sold in local fish shops, despite the IUCN listing the school shark as critically endangered. The gestation period is about one year and the number of developing pups carried varies with the size of the mother, averaging somewhere between about 28 and 38. Vor 1937 wurde der Schulhai in Kalifornien gefangen, um einen lokalen Markt für Haifilet zu beliefern, und die Flossen wurden getrocknet und in Fernost verkauft. Outside Australia there are no conservation actions in place for this species. It prompted fisheries regulators to cut quotas dramatically. 1997. Walker, T.I. Der Schulhai ist ein kleiner Hai mit flachem Körper und einer länglichen Schnauze. The school shark is a small, shallow-bodied shark with an elongated snout. Order Ground Sharks - Carcharhiniformes. Es kommt weltweit in gemäßigten Meeren in Tiefen bis zu 800 m vor. Before 1937, the fish was caught in California to supply a local market for shark fillet and the fins were dried and sold to the Far East. Tope Shark, Soupfin Shark and Snapper Shark. The second dorsal fin is about the same size as the anal fin and is set immediately above it. Die Untersuchung des Mageninhalts von Fischen, die vor Kalifornien gefangen wurden, ergab, dass sie keine pingeligen Esser waren und den zu dieser Zeit reichlich vorhandenen Fisch verzehrten. "The Greenpeace International seafood red list is a list of fish that are commonly sold in supermarkets around the world, and which have a very high risk of being sourced from unsustainable fisheries.".
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