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Topic: Northern Bluefin Tuna

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	Northern Bluefin Tuna - Wikipedia, the free encyclopedia
		The Northern Bluefin Tuna (Thunnus thynnus) is a species of tuna fish, living in both the Western and the Eastern Atlantic Ocean and extending into the Mediterranean Sea and the Black Sea.
		Northern Bluefin Tuna can easily be distinguished from other members of the tuna family by the relatively short length of their pectoral fins.
		The Northern Bluefin Tuna is an important source of seafood, providing most of the tuna used in sushi.
	en.wikipedia.org /wiki/Northern_Bluefin_Tuna (436 words)

	IFCNR - FISHERIES COMMITTEE
		In 1995 and 1996 20 bluefin fry hatched and survived to maturity.
		The Pacific subspecies is known from the Gulf of Alaska to southern California and Baja California in the eastern Pacific; in the western Pacific, it occurs from Sakhalin Island in the southern Sea of Okhotsk south to the northern Philippines.
		The country taking the largest catches of northern bluefin tuna is Japan (28 628 t in 1981), and it operates in almost all fishing areas with its long-distance fleets.
	www.fisheries.ifcnr.com /article.cfm?NewsID=323 (1259 words)

	Florida Museum of Natural History Ichthyology Department (Site not responding. Last check: 2007-10-13)
		The bluefin tuna is distributed throughout the Atlantic and Pacific Oceans in subtropical and temperate waters.
		Bluefin are less likely to feed during the spawning season, when the majority of their activity must be dedicated to spawning activities.
		The cookiecutter shark (Isistius brasiliensis), largetooth cookiecutter shark (Isistius plutodus), and pilotfish (Naucrates ductor) are fish considered to be parasites of the bluefin tuna.
	www.flmnh.ufl.edu /fish/Gallery/Descript/BluefinTuna/BluefinTuna.html (1404 words)

	oceans campaign, pirate fishing
		The Plunder of Bluefin Tuna in the Mediterranean
		The bluefin tuna are large (some may reach a weight of 600 kg.), voracious fish and excellent swimmers.
		The high market demand for bluefin tuna is spurring the commercial extinction of one of the world's oldest and most lucrative fisheries.
	archive.greenpeace.org /oceans/piratefishing/bluefintuna.html (1219 words)

	IFCNR - FISHERIES COMMITTEE
		Northern bluefin are found in the northern sections of the Atlantic and Pacific Oceans with traditional Atlantic breeding grounds thought to be in the Gulf of Mexico and the Mediterranean.
		Pacific northern bluefins range from the Gulf of Alaska to southern and Baja California in the East to the Sakhalin Island in the southern Sea of Okhotsk to the northern Philippines.
		Bigeye tuna, Thunnus obesus, enjoys the distinction as the tuna whose flesh is nearly as prized by sushi and sashimi connoisseurs as that of bluefin.
	fisheries.ifcnr.com /article.cfm?NewsID=231 (1806 words)

	Bluefin Tuna
		Description The bluefin tuna has been coined the "ultimate political fish." The controversy surrounding the well being of the Bluefin tuna has lasted over two decades and has yet to be completely resolved.
		ICCAT agreed that imports of fresh Bluefin tuna should be accompanied by a statistical document as of June 1, 1994.
		BLUEFIN TUNA The current working hypothesis for the assessment of Bluefin tuna is that there are two stocks on the Atlantic, with the exchange of individuals considered too limited to affect the results of management on each side of the Atlantic.
	www.american.edu /projects/mandala/TED/bluefin.htm (3195 words)

	Monterey Bay Aquarium: Conservation and Research - Tuna Research and Conservation (TRCC)
		Bluefin tuna are also the basis of an incredibly lucrative commercial fishery, one that in some regions has led to steep declines over the past three decades because of growing pressure to catch these valuable giants.
		Since 1994, staff at the Tuna Research and Conservation Center (TRCC)—a collaboration between the aquarium and Stanford University—has been tagging giant bluefin tunas in the wild and studying tunas at the TRCC facility in Pacific Grove, next door to the aquarium.
		TRCC tagging in the western Atlantic has revealed that bluefin tunas are mixing on their feeding grounds but potentially sorting to independent breeding grounds in the Mediterranean and the Gulf of Mexico, a pattern not accounted for in current fisheries management policies.
	www.mbayaq.org /cr/trcc.asp (510 words)

	Tuna (Site not responding. Last check: 2007-10-13)
		Northern bluefin are pelagic but often frequent shallow coastal waters.
		Bluefin are social animals, forming large `peer' schools in which individuals of similar size are found together.
		Current data suggests that although there are two populations of northern bluefin in the Atlantic, there is only a single population in the Pacific, spawning in the western part of the ocean around Japan, and between Japan and the Philippines.
	eoficina.e.telefonica.net /sites/0400/Org215035/pwe/pwe/atune.htm (372 words)

	Indices of abundance of northern bluefin tuna, Thunnus thynnus, in the eastern Pacific Ocean
		Bluefin are caught mostly by vessels with carrying capacities of 400 short tons or less (size classes 1-5), and the numbers of vessels in this size range have been decreasing, so it is possible that the declining catches are due to reduced fishing effort, rather than to reduced abundance of fish.
		Bluefin are caught mostly by purse seines in the EPO, but the geographic range of the purse seine fishery for tunas extends far beyond the geographic range in which bluefin occur in the EPO, so CPUE data for the EPO are unlikely to provide realistic estimates of the abundance of bluefin.
		Calkins, T.P. Observations on the purse seine fishery for northern bluefin tuna (Thunnus thynnus) in the eastern Pacific Ocean.
	www.fao.org /DOCREP/003/W3628E/w3628e0z.htm (4012 words)

	Letters - mattanza
		The Northern bluefin's predictable spawning pattern is critical to the mattanza.
		The clean, fresh taste of the tuna crudo is contrasted by the briny pungence of tuna mosicame, air-dried tuna loin, cured in-house, shaved into thin slices and served with a fennel salad.
		Northern and Southern bluefin tuna are two of the seven members of the thunnus genus.
	www.incanto.biz /html/letters_-_mattanza.html (2120 words)

	Review of Sustainability Measures and Other Management Controls for the 2001-02 Fishing Year (Site not responding. Last check: 2007-10-13)
		The inclusion of northern bluefin within the catch limit was intended to protect the integrity of New Zealand's international allocation of southern bluefin tuna in the absence of established techniques to differentiate between bluefin species.
		At least one major commercial tuna fisher has expressed concern that it is impractical for freezer vessels (both domestic and charter) not to be in possession of southern bluefin tuna at the closure of the fishery and for some time thereafter.
		The purpose of the closure of the southern bluefin tuna fishery is to prevent the taking of southern bluefin tuna for the remainder of the fishing year once the catch limit has been reached.
	www.fish.govt.nz /sustainability/decisions/statements/southern_bluefin_tuna.htm (1488 words)

	[No title]
		Tuna are fished extensively in all oceans to the point where some species are now endangered with fishing effort closely monitored and managed, the population of Northern bluefin tuna for instance has been reduced in numbers over the last twenty years by 80% according to the International Commission for the Conservation of the Seas.
		Tuna are not cold-blooded as are most fish, but have a system whereby they maintain their temperature a few degrees warmer than the water in which they find themselves.
		Northern Bluefin tuna (Thunnus thynnus) The bluefin tuna is the largest member of the tuna family, they are generally dark, metallic blue (nearly fl) on the back, shading to silvery white or grey on the sides, to white on the belly.
	www.wwf.dk /db/files/feature_special_tuna.doc (4461 words)

	California Halibut (Site not responding. Last check: 2007-10-13)
		The bluefin is one of the largest, fastest and most wide-ranging of all fishes.
		The southern California bluefin are part of the north Pacific population which range from the Phillipines and Japan across to North America.
		Bluefin from the western Pacific arrive off of Baja in April and May and may migrate north into southern California in May and June when sportfishers begin targeting them.
	www.csun.edu /biology/nmfrp/bluefin.htm (386 words)

	Interactions of Pacific tuna fisheries
		Northern bluefin are also caught by longline vessels east of the Philippines, northeast of Papua New Guinea, and southeast of Australia, especially in the vicinity of New Zealand (Figure 2), and by sport gear in the Gulf of Papua (Collette and Smith, 1981).
		Northern bluefin are caught in the vicinity of Isla Guadalupe during all months of the year, but not during every month of every year.
		In the area-time strata in which bluefin effort was assumed to occur during the 1961–1980 period, the catches of bluefin ranged from 19 to 83 percent of the total catch, with an average of 51 percent (Calkins, 1982: Table 5).
	www.fao.org /DOCREP/005/T1817E/T1817E13.htm (6293 words)

	Tuna Species Datasheet
		Bluefin is extremely popular in Japan for sashimi, due to its large size, color, texture and high fat content of the meat.
		Southern Bluefin is considered the ultimate delicatessen of the tuna family in Japan.
		Skipjack Tunas are distinguished by the presence of four to seven dark, longitudinal stripes on their bellies.
	www.atuna.com /species/species_datasheets.htm (1591 words)

	Thunnus thynnus, Atlantic Bluefin Tuna at MarineBio.org
		Bluefin are highly migratory and limited numbers of individuals may cross the Atlantic in as little as 60 days and are widely distributed throughout the Atlantic and can be found from Newfoundland all the way to the coast of Brazil.
		Bluefin in the South Atlantic belong to a distinct southern population, with known spawning areas south of Java, Indonesia.
		The highest density of Bluefin larvae, the primary indicator of spawning, occurs in the northern Gulf of Mexico with lesser larval concentrations appearing off the Texas coast and in the Straits of Florida.
	marinebio.org /species.asp?id=236 (1255 words)

	EXN.ca \| Discovery
		Despite warnings from environmentalists, there will be no reduction in the number of bluefin tuna caught off the east coast of Canada and the U.S. Illegal and unregulated fishing has reduced the bluefin tuna population by 80 percent.
		Northern bluefin tuna is the most expensive fish in the world.
		Northern bluefin tuna is the most expensive marine fish in the world.
	www.exn.ca /Stories/1996/11/25/04.asp (440 words)

	Oceans Alive - Bluefin Tuna
		Bluefin tuna, highly prized for its flesh, is popular for sushi and sashimi.
		Bluefin tuna are found in the Atlantic and Pacific Oceans.
		Unlike most tunas, bluefin are slow growing and late to mature and thus less resilient to fishing pressure.
	www.oceansalive.org /eat.cfm?subnav=fishpage&fish=154 (363 words)

	[No title]
		The demand for tuna and tuna-like species is expected to continue to increase in the future while most traditional target species are already fully or overexploited.
		Tuna and tuna-like species are commercially caught all over the world, either close to the surface using pole-and-line and purse-seines (Map) or in deep waters with longlines (Map).
		The first two methods are used for fish found close to the water surface (e.g., skipjack and relatively small yellowfin, albacore and northern and southern bluefin tuna), whereas the last method aims at fish being deeper in the sea (e.g., large northern and southern bluefin tuna, bigeye tuna, yellowfin, albacore, billfish and swordfish).
	www.oceansatlas.org /fishatlas/generated/sga01401.htm (809 words)

	Fishery Bulletin: Tracking Pacific bluefin tuna in the northeastern Pacific with an automated algorithm that estimates ...
		Tag data from bluefin tuna were subjected to a newly developed algorithm, called "PSAT Tracker," which automatically matches sea surface temperature data from the tags with sea surface temperatures recorded by satellites.
		Conventional tagging studies have shown that Pacific bluefin tuna in the eastern Pacific eventually return to the western Pacific where they are believed to remain as adults (Sund et al., 1981; Bayliff, 1994).
		Pacific bluefin tuna were captured on rod and reel from a recreational fishing vessel by using live bait and circle hooks.
	www.findarticles.com /p/articles/mi_m0FDG/is_2_103/ai_n13801781 (1365 words)

	! Hall of Fame
		She was the first woman to catch a tuna on rod and reel (Nova Scotia, 1935) and the first woman to catch two marlin in one day (South America, 1939).
		Although Glassell traveled the world hunting marlin, bluefin tuna and swordfish, his research convinced him he would find his giant quarry in the bait-rich waters off Cabo Blanco, Peru, and on August 4, 1953 he landed the 1,560 pound record fish that would withstand the test of nearly a half-century of tackle and boat improvements.
		He is Past President of The Tuna Club, where he still holds a Club record set in 1970 for a 503 pound broadbill swordfish on 80 pound dacron line, and he remains on the records books in Massachusetts, as well, for a 131 pound white marlin caught off Nantucket in 1982.
	www.igfa.org /hall.asp (19153 words)

	GREENPEACE/OCEANS/SCIENTISTS PREDICT EXTINCTION FOR SOUTHERN BLUEFIN TUNA -- GREENPEACE
		Fishery managers are alarmed by the dramatic increase in the unregulated fishing for southern bluefin tuna by countries which are not members of the regional management body, the Commission for the Conservation of Southern Bluefin Tuna (CCSBT).
		The southern bluefin tuna lives up to 40 years, can weigh as much as 200 kilogramms and measures up to two metres in length.
		It is estimated that Taiwan, Indonesia and South Korea have doubled their catch of southern bluefin tuna in the last two years..
	archive.greenpeace.org /pressreleases/oceans/1997sep9.html (405 words)

	Safcol - FAQs
		The species of Tuna sold in Australia by Safcol under the name Northern Bluefin is known by the scientific name thunnus tonggol.
		Northern Bluefin Tuna is light in colour and tight in texture.
		Albacore Tuna, Northern Bluefin Tuna, Yellowfin Tuna, Skipjack Tuna.
	www.safcol.com.au /faq.htm (85 words)

	OceanLaw On-Line Paper No. 15: Problems of nomenclature and taxonomy affecting legal instruments governing tuna and ...
		Thunnus thynnus (northern bluefin tuna) are in fact two distinct species, this paper examines and finds considerable variation in how tunas are named and classified in the UN Convention on the Law of the Sea and other fisheries treaties.
		First, five of the tuna species listed in Annex I are among those regarded by the FAO as neritic and not truly highly migratory (items 6, 7 and 9); conversely, the omission of both longtail tuna and fl skipjack from Annex I might also be questioned on the same basis.
		in Cuba to denote flfin tuna, in Ecuador to denote bigeye tuna and in Chile to denote swordfish (
	www.intfish.net /ops/papers/15.htm (1845 words)

	Slipping The Net: Spain’s Compliance With ICCAT Recommendations For Swordfish And Bluefin Tuna
		Tunas and tuna-like species are highly migratory fish that are widespread throughout the world’s oceans and seas, following seasonal migration patterns.
		The high commercial value of Bluefin Tuna, particularly on the Japanese market, has led to concern over the state of this fish resource in the Atlantic and resulted in controversy between fisheries experts and other parties during the past three decades.
		The greater rate of exploitation of wild stocks of Bluefin Tuna and Swordfish resulting from use of modern fishing gear, coupled with the lack of available information about these stocks has raised concerns among specialists.
	www.traffic.org /swordfish/background.html (430 words)

	Bluefin Tuna Data
		Understanding population structure and mixing rates of Atlantic bluefin tuna (Thunnus thynnus) is critical to optimize utilization of this highly migratory species.
		In response, we are currently evaluating milling effects (e.g., by comparing sectioned and milled otolith to whole otolith from the same yearling individuals) and expanding the library of inter-annual record of isotopic concentrations associated with bluefin tuna nurseries.
		School and medium size-class sub-adult tuna (99 – 148 cm FL, n = 6) were collected from Ocean City, MD and giant adult tuna (199 – 270 cm FL, n = 8) were collected from Seabrooke, NH in 2001-2002.
	www.tamug.edu /pelagic/BluefinData.htm (1215 words)

	Growfish - Gippsland Aquaculture Industry Network (GAIN)
		The Port Lincoln tuna barons are facing their toughest year since tuna farming emerged in the early 1990s as a major industry.
		The stronger Australian dollar and continuing rise in tuna farming in Europe and Mexico are behind the fears.
		Mr Isle said the northern hemisphere's 50 per cent rise in farmed northern bluefin tuna production last year was making it tougher for the Australian industry.
	www.growfish.com.au /content.asp?contentid=1668 (546 words)

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