Proceedings of the Pacific Region Science Advisory Process for Spiny Dogfish (Squalus acanthius) in British Columbia, Canada; May 17, 2010, Proceedings of the Regional Peer Review of the Northwest Atlantic Spiny Dogfish (Squalus acanthias) Framework and Assessment; January 20-21, 2014, and May 29, 2014, The status of spiny dogfish (Squalus acanthias, Linnaeus) in the southern Gulf of St. Lawrence (NAFO Division 4T) (38 p.), The status of spiny dogfish (Squalus acanthias, L) in the Bay of Fundy, Scotian Shelf and southern Gulf of St. Lawrence (NAFO Divisions 4TVWX) in 1995 (p.27), Stock structure, life history, fishery and abundance indices for spiny dogfish (Squalus acanthias) in Atlantic Canada, Preliminary Results from the September 2007 Bottom-trawl Survey of the Southern Gulf of St. Lawrence, Spiny Dogfish (Squalus acantias) Assessment and Catch Recommendations for 2010, Framework Assessment and 2013 Update using a Stage-based Population Model for Spiny Dogfish (Squalus acanthias) in the Northwest Atlantic, Assessment of Spiny Dogfish in Atlantic Canada, Assessment of Spiny Dogfish (Squalus acanthias) in British Columbia in 2010, Assessment of Spiny Dogfish in the Northwest Atlantic, Northwest Atlantic Spiny Dogfish Stock Status Update Report, 1985 status report on 4VWX dogfish (Squalus acanthias), The Black Dogfish in the Gulf of St. Lawrence. swarms consist of pregnant females in search of their nesting grounds, which include the San Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. [15], In recent years, however, the US has implemented fishing controls and opened up the fishery. May be published only by indicating the source: Shark Info. 0000020365 00000 n 0000021423 00000 n 0000005616 00000 n 0000006532 00000 n The fins and tails are processed into fin needles and are used in less-expensive versions of shark fin soup in Chinese cuisine. size, which makes them easy prey for other sharks, sea lions and swordfish. The National Marine Fisheries Service, with new data predicting the collapse of the spiny dogfish populations, closed federal waters to dogfish fishing in July 2003. Spiny dogfish are usually quite harmless, but a poison is secreted swarms are formed in order to hunt together, but also as protection against enemies. /��3�2Eo���K8�}�J���J���s�=�4��K�tb�@��2/���U�_ c��� endstream endobj 186 0 obj << /Filter /FlateDecode /Length 229 0 R >> stream speculative. 39 (2): 139-164. Spiny dogfish often live in swarms consisting of thousands of animals. Biol 201 (9): 1345-1358. Until our research had been completed, neither a method for age determination nor growth rate have been validated in the northwest Atlantic. Distribution of the spiny dogfish (Squalus acanthias). 0000013016 00000 n Zealand. 0000016272 00000 n this behavior remain purely speculative. The age at which they reach sexual maturity is very difficult to determine. External factors such as water temperature and ?�S�И�B]+���{2-��ޟҳ� Z�! They are found from the surface to depths as deep as 1,460 metres. 0000002577 00000 n Finally, the female gives birth to 1-20 pups,[2] each one measuring around 20 to 33 centimeters. These The samples consisted of 132 females in 1987 and 101 females �����4�����ze��^��9�B��%�Ji�㘪�)�Ϭ�7��ٮu�C.Y2��|���[t��ƿ�w��Zw���EK&N�!! Our recent research produced a detailed population model and stock assessment which can be used as the basis for a sustainable dogfish fishery in both countries, and which properly takes into account the transboundary migration and mixing (2014 Science Advisory Report (CSAS SAR - 2014/055)). [11], The Cape Cod Commercial Fishermen's Alliance has sponsored an initiative which promotes local, sustainably-caught use of the dogfish in restaurants and fish markets in the Cape Cod area of Massachusetts.
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