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Topic: Yellowfin tuna

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	Florida Museum of Natural History Ichthyology Department: Yellowfin Tuna (Site not responding. Last check: 2007-10-26)
		Yellowfin may be attracted to the object to feed on smaller prey which are foraging on the structure.
		Yellowfin tuna may utilize the object as a substrate on which to lay their eggs or as a "cleaning station," where parasites are removed by other fishes.
		Yellowfin are apparently sight-oriented predators, as their feeding tends to occur in surface waters during daylight.
	www.flmnh.ufl.edu /fish/Gallery/Descript/YellowfinTuna/YellowfinTuna.html (1582 words)

	Mass. Division of Marine Fisheries: Yellofin Tuna - Species Profile
		Yellowfin tuna is an abundant tropical tuna, found throughout the warmer reaches of the Atlantic, Pacific and Indian oceans.
		The recent colonization of yellowfin tuna to the Continental Shelf south of New England in the 1970s and accumulating evidence of the influence of global warming on marine habitats raises an enticing question for scientists and anglers to consider as we begin the 21st century.
		In the 1950s and 1960s, yellowfin tuna was nearly unknown to longline and rod and reel fisheries on the east coast, and since the mid-1980s it has become the dominant tuna species in terms of landings and has generated tremendous economic benefits.
	www.mass.gov /dfwele/dmf/recreationalfishing/yellowfin.htm (1997 words)

	Louisiana Fisheries - Yellowfin Tuna
		Yellowfin tuna are found Gulfwide, in the open sea away from shore.
		Tunas (and a few sharks) have developed the ability to control their body temperature through a network of veins and arteries called a "rete mirabile" that traps (and dumps) body heat.
		Yellowfin tuna are common to 80 pounds, and occasionally reach 200 pounds.
	www.seagrantfish.lsu.edu /biological/mackerels/yellowfintuna.htm (795 words)

	Tuna Trivia By Tailchaser
		Man’s interest in the yellowfin is an ancient one: Research on the tuna’s migration, feeding and spawning practices was begun in the sixth century B.C. by the Greek fishermen that prized their delicate flesh.
		The yellowfin tuna is so sophisticated in design and so well adapted to its environment, that it has attracted the attention of biologists ranging from biochemists to physiologists to ecologists.
		Yellowfin have been observed using techniques like turning over on their sides at a 45 degree angle and using their bodies as a hydrofoil, to obtain speeds previously thought impossible.
	www.bongossportfishing.com /tunatriv.html (2430 words)

	Yellowfin tuna - Wikipedia, the free encyclopedia
		Yellowfins tend to school with fishes of the same size, including other species of tuna, and larger fish are often seen with dolphins (often termed "porpoises" by tuna fishemen), whales and whale sharks.
		Yellowfin tuna are a popular sport fish in many parts of their range and are prized for their speed and strength when fought on rod and reel as well as for their table qualities.
		Yellowfin is also popular in restaurants as the primary protein in an entree; presented in much the same fashion as fine red meat, it is often cooked seared to rare to medium-rare, though it takes on a rich flavor similar to tri-tip when cooked through.
	en.wikipedia.org /wiki/Yellowfin_tuna (292 words)

	FIGIS - FAO/SIDP Species Identification Sheet: Thunnus albacares
		Yellowfin tuna are essentially confined to the upper 100 m of the water column in areas with marked oxyclines, since oxygen concentrations less than 2 ml/l encountered below the thermocline and strong thermocline gradients tend to exclude their presence in waters below the discontinuity layer.
		Although the distribution of yellowfin tuna in the Pacific is nearly continuous, lack of evidence for long-ranging east-west or north-south migrations of adults suggests that there may not be much exchange between the yellowfin tuna from the eastern and the central Pacific, nor between those from the western and the central Pacific.
		Near-surface schooling yellowfin tuna are captured primarily with purse seines and by pole-and-line fishing, while trolling and gillnetting are of much lesser importance.
	www.fao.org /figis/servlet/species?fid=2497 (853 words)

	PFRP Biology Project - Yellowfin tuna reproductive biolgy
		Yellowfin tuna, like other members of the tuna family are serial spawners, meaning that they will release several batches of eggs throughout the year in contrast to temperate water fishes that may release a few batches of eggs during a brief spawning season.
		Under normal conditions, it is very difficult to seine large yellowfin tuna in the western Pacific due to the elusive nature of the fish in the clear water and the depth of the thermocline which is normally deeper than the purse seine nets.
		Yellowfin tuna can be characterized as having a rapid growth rate that brings the fish into sexual maturity after their second year when mass spawning close to the surface commences.
	www.soest.hawaii.edu /PFRP/biology/itano.html (2467 words)

	Yellowfin Tuna photos and information
		The caudal fin of the yellowfin tuna is distinctly notched in an "M" chape at the centre of its fork.
		Yellowfin tuna adults are distinguished by having a moderately long pectoral fin that is one third to one quarter the body fork length.
		Yellowfin tuna less than 75cm fork length (10kg whole weight) may be difficult to distinguish from small bigeye tuna.
	www.sea-ex.com /fishphotos/yellowfin.htm (407 words)

	Yellowfin Tuna, purse-seine-caught
		Yellowfin Tuna are attracted to areas in the oceans that are rich in nutrients and support thriving ecosystems, such as seamounts and areas of upwelling.
		Yellowfin Tuna populations are not classified as overfished in the Atlantic, Pacific, or Indian Ocean (IATTC 2004a; ICCAT 2004; SCTB 2004; IOTC 2003).
		Since most Yellowfin Tuna are caught in schools associated with dolphins, the bycatch of sea turtles in tuna purse seines is not a major problem for the Yellowfin Tuna fishery, but is something to consider for the Skipjack Tuna fishery.
	blueocean.org /seafood/species/70.html (4732 words)

	Yellowfin Tuna
		The Yellowfin Tuna is a member of the Scombridae or Tuna, Bonito, and Mackerel Family found in Mexican waters.
		Yellowfin Tuna, Thunnus albacares: A 352-pound Yellowfin Tuna caught 10 miles east of Cabo Pulmo, East Cape, Baja California Sur, Mexico, on August 24, 2000, by Ernie Lopez from Los Angeles, and Javier Gonzalez and Manuel Lopez from Phoenix.
		Yellowfin Tuna, Thunnus albacares: Yellowfin Tuna caught at Las Arenas, south of La Paz, Baja California Sur, Mexico, September 2002 by Tail Hunter International anglers: Jeff Wickline of Playa del Rey, Calif.; Ivan Urrutia of Miramar, Fla.; Tim Gatlin of La Verne, Calif.; and Mark Costa of San Diego.
	www.mexfish.com /fish/yftuna/yftuna.htm (485 words)

	Pacific Seafood Group
		This condition is often associated with yellowfin caught near the surface of the ocean, often in handline or troll fisheries.
		Yellowfin and bigeye are graded both by fat content and color, which can be an objective exercise, as standards can vary from supplier to supplier, depending both upon the experience of the grader and the condition of the market.
		Until recently, frozen tuna had to be held at ultra cold temperatures such as -60°F to retard oxidation and prevent the meat from turning brown (brown frozen yellowfin is called “chocolate” tuna).
	www.pacseafood.com /products/yellowfin_Tuna.html (1136 words)

	Yellowfin Sole, Yellowfin Tuna: Siam Canadian (Site not responding. Last check: 2007-10-26)
		Yellowfin sole or limanda aspera is a long living and slow growing fish.
		The yellowfin sole are found on the outer shelf in winter and moved to shallow waters to spawn and feed in summer.
		Yellowfin sole females reach 50% maturity at 30 cm and are highly fecund, producing one to three million eggs.
	www.siamcanadian.com /yellowfin-sole (493 words)

	Yellowfin tuna - Discover The Outdoors (Site not responding. Last check: 2007-10-26)
		Though yellowfin tuna are sometime found near shore, this only occurs when forage suddenly becomes abundant there, and for the most part they can stay around the edges of continental shelves.
		Yellowfin tuna disperse the eggs and milt into the water, and the eggs are unguarded.
		Yellowfin tuna are considered an excellent food and sport fish and are highly sought after by anglers and commercial fishermen alike.
	www.dto.com /swfishing/species/speciesnostate.jsp?speciesid=404 (568 words)

	Tuna
		Tuna are finfish belonging to the tribe Thunnini, a sub-grouping of the mackerel family (Scombridae), which also includes the mackerels, bonitos, and the skipjacks.
		Tuna are considered epipelagic-to-midwater fish, inhabiting the upper and middle layers of ocean water, to a depth of 1,600 feet or more (500 m), depending on size and species.
		Tunas have a circulatory and respiratory system that is unique among fish, enabling them to maintain a body temperature slightly higher than the surrounding water.
	seagrant.gso.uri.edu /factsheets/tuna.html (1667 words)

	Interaction between vessels fishing for yellowfin tuna (Thunnus albacares) in the northeastern and southeastern Pacific
		Yellowfin tuna catch in the EPO by the Mexican tuna fleet in 1994.
		The length composition of yellowfin tuna caught by the purse seine fishery is similar in different years, except 1988 (Figure 5) but there are some important differences among the areas (Figure 6 a to g).
		In this particular case, the knowledge of yellowfin tuna migrations in EPO is inadequate especially for adult tunas (Deriso et al., 1991).
	www.fao.org /DOCREP/003/W3628E/w3628e0s.htm (2124 words)

	Tuna Species Datasheet
		Skipjack Tunas are distinguished by the presence of four to seven dark, longitudinal stripes on their bellies.
		Yellowfin is the second tuna species is terms of volume and popularity.
		The general concerns on yellowfin is that due to increased catches of baby-yellowfin (especially in the Atlantic, Indian Ocean and Western Pacific), the stocks might suffer on the long term.
	www.atuna.com /species/species_datasheets.htm (1591 words)

	Yellowfin Tuna - Ahi
		Trophy-sized yellowfin tuna are prized catches in gamefishing tournaments held in Hawaii.
		Although the yellowfin's flesh tends to be firmer than that of bigeye tuna, it does not retain the natural red pigmentation as long.
		Yellowfin caught near the ocean surface during the summer season frequently have some portion of flesh that lacks the typical bright red pigmentation and is more watery and softer than normal ahi flesh.
	www.state.hi.us /dbedt/seafood/yellowfin.html (949 words)

	Tuna (Site not responding. Last check: 2007-10-26)
		Tuna roasted on a spit and basted with olive oil and spices was a food highly valued in the ancient civilizations of the Mediterranean.
		Yellowfin (called ahi in Hawaii) is the least oily kind of tuna; it is flavorful (but not strongly so) when cooked, and is good eaten raw.
		When well-wrapped, tuna can be frozen for up to two months in a refrigerator freezer compartment and three to four months in a deep-freeze.
	www.kroger.com /hn/Food_Guide/Tuna.htm (1214 words)

	Yellowfin Tuna - Ahi
		There are wide fluctuations in the annual catch of yellowfin, depending on whether ocean surface temperatures and other oceanographic conditions favor the migration of ahi schools to within fishing range of the Hawaiian Islands.
		Although the yellowfin's flesh tends to be firmer than that of bigeye tuna, it does not retain the natural red pigmentation as long.
		Yellowfin caught near the ocean surface during the summer season frequently have some portion of flesh that lacks the typical bright red pigmentation and is more watery and softer than normal ahi flesh.
	www.hawaii.gov /dbedt/seafood/yellowfin.html (949 words)

	Yellowfin Tuna Fishing How To For Small Boat Owners
		Ol' "Charlie," a 117 pound yellowfin tuna, had the odds of being lost in his favor, if it weren't for quick thinking on the part of an experienced fisherman aboard that day.
		The yellowfin tuna is the most brilliantly colored of tunas, with a poorly defined stripe of golden-yellow on its upper sides and much bright yellow in most of its fins, hence the name “yellowfin.” It exhibits white spots and vertical stripes on its lower sides and has a dark bluish-fl upper section.
		Yellowfin tuna can be caught basically like many other species: (1) trolling and (2) casting bait or lures.
	www.jerrylabella.com /yellowfin_how_to.htm (2294 words)

	Yellowfin Tuna
		The surface of a yellowfin's liver is smooth while the liver of the bigeye is striated, containing many with small blood vessels along the trailing edge.
		Fishing Information: Yellowfin tuna are fished in much the same manner as albacore; jigs are used to locate the schools, and live anchovies are chummed to keep the fish around the boat.
		Landings: The annual unloading average is 7,560 tons, for the Tunas of the genus Thunnus in the artisanal fisheries.
	dennisalbert.com /FISH/yellowfintuna.htm (998 words)

	Tuna Guide (Site not responding. Last check: 2007-10-26)
		The Atlantic tuna fisheries occur in all waters of the Eastern United States, from the Northeast (Gulf of Maine) to the Mid-Atlantic, Southeast, Caribbean, and Gulf of Mexico Regions.
		A warm-water species, yellowfin is the most tropical species of tuna, and is abundant in tropical waters throughout the Atlantic.
		Yellowfin are sexually mature when they reach a length of approximately 40 inches, and spawning occurs throughout the year in the core areas of distribution (between 15 N and 15 S latitude), including the Gulf of Mexico, with peaks occurring in summer months.
	www.offshorepursuits.com /tuna.htm (2472 words)

	Tuna Duck Charter Fishing Boat Hatteras North Carolina/Yellowfin Tuna
		Yellowfin tunas are one of the most abundant fish found in the gulfstream off Hatteras, North Carolina.
		Many times the larger tunas are caught off Hatteras in June, July, August, and September while fishing for marlin and other species.
		LIMIT: The yellowfin tuna limit is 3 per person, including the captain and the mate.
	www.tunaduck.com /yellow.html (365 words)

	SPC Oceanic Fisheries: Exploitation and movement of Yellowfin tuna (Site not responding. Last check: 2007-10-26)
		Yellowfin tuna (Thunnus albacares) and bigeye tuna (T. obesus) were tagged and released in the north-western Coral Sea in 1991 and 1992.
		Over the next five years, recaptures were reported by Australian longline vessels fishing in the release area, and by industrial tuna fleets fishing in the adjacent western Pacific region, thus demonstrating clear links between the tuna stocks in these areas.
		The data were analysed using tag-attrition models with seasonally variable catchability and with two assumptions regarding changes in targeting of the two species by longliners during the study.
	www.spc.org.nc /OceanFish/Docs/Research/exploitation.htm (211 words)

	SPC Oceanic Fisheries: Yellowfin tuna and modelling (Site not responding. Last check: 2007-10-26)
		A spatially disaggregated, length-based, age-structured population model of yellowfin tuna (Thunnus albacares) in the western and central Pacific Ocean
		A spatially disaggregated, length-based, age-structured model for yellowfin tuna (Thunnus albacares) in the western and central Pacific Ocean is described.
		Although not obviously related to over-exploitation, the recruitment decline suggests that the productivity of the yellowfin tuna stock may currently be lower than it has been previously.
	www.spc.org.nc /oceanfish/docs/research/yellowfin.htm (255 words)

	FRESH YELLOWFIN TUNA
		AlwaysFreshFish.com uses "Yellowfin" Tuna which is known to be one of the world's most important commercial species.
		Fresh Yellowfin Tuna is a lean meat but firm, with a large flake.
		Fresh Yellowfin Tuna has a red color varying in shades from a dark red (burgundy), to a pale red.
	www.alwaysfreshfish.com /fresh_tuna.html (495 words)

	Canaveral Yellowfin Tuna Fishing - Florida Sportsman
		The skipper's words were lost in the high-decibel scream of four 50-wides dumping line as yellowfins blistered horizon-bound under full steam, despite the 15-pound drag strike setting.
		Perhaps the most exciting element of radar tuna fishin', besides charging the Gulf Stream at 30 knots, is the multiple hookup factor.
		Care of yellowfin tuna spells the difference between serving sushi-grade fish or something less.
	www.floridasportsman.com /features/tuna_canaveral (2376 words)

	Yellowfin Tuna - EUROPACIFIC TUNA LTD (Site not responding. Last check: 2007-10-26)
		Adults are identified by a sickle-like anal and second dorsal fins and long pectorals, these fish have a robust body which tapers towards a crescent-shaped tail.
		Smaller yellowfin strike avidly at lures, and the occasionally big fish succumb to lures such as kona-heads, knuckleheads, feathers, spoons and squid replicas.
		Yellowfin tuna are strong fighters, running hard and deep when hooked and circle the boat towards the end of the fight.
	www.europacifictuna.com /yellowfin.htm (224 words)

	tuna (Site not responding. Last check: 2007-10-26)
		Yellowfin tuna are usually found offshore on the surface or at mid-depths in deep water.
		Yellowfins hit the bait near the surface very hard and fast, then fight from the depths.
		When we see a potential for yellowfins we generally rebait some of the lines with small surface-running artificial lures and put a small lure on the down rigger in case they are deep and cannot be seen.
	www.acapulconet.com /tuna.html (267 words)

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