New paper in Science introduces revolutionary new paradigm for fishery management
... which has been inadvertently decimated because of tuna and swordfish fishing. "Overfishing top predators...ent of the annual mortality of white marlin to the tuna and swordfish longline fisheries. Although moving to ecosystem-based fishery management will not be ...Scripps scientists look deep inside sharks and their high-performance swimming system
...r that the mighty great white shark and the common tuna don't have a lot in common. In fact, just the oppo...ically separated," said Donley. "It's exactly like tuna in that respect." The authors say these characteristics distinguish lamnid sharks and tunas from vir...Staying close to mother helps baby dolphins swim
...olphin populations? A new study shows how chase by tuna fishermen may sever the link between mother and ba...overed, despite recent restrictions on purse-seine tuna fishing. Fishing that took place prior the restrictions may well have disrupted dolphin schools, cau...Gulf marine reserves given new life
...h migratory species as marlin, sailfish, wahoo and tuna has been permitted. The United States Coast Guard is the chief agency responsible for enforcing the bottom-fishing ban plus new regulations governing trolling through the areas that soon may be implemented. In approving the extension, federal manage...Duke study gives first worldwide measure of sea turtle casualties by longline fishing
... They are set at optimal depths and times to catch tuna and swordfish. Because the environmentally protect...fish snare turtles at a 10 times greater rate than tuna longlines. Crowder said such a difference arises because tuna longlines tend to be set deeper in the...DNA chip will catch beefed up chicken
... beef or pork extracts? Is that expensive albacore tuna really cheap skipjack tuna? Did rats, mice or even bits of people fall into the mincer when your burger was being made? And are unscrupulous companies risking spreading mad cow disease by adding beef to cattle feed? All these questions can now be an...New Seascape initiative stretches from Costa Rica to Ecuador and protects key marine habitats
...nt of large, predatory fish populations including tuna and marlin have disappeared. In addition, 75 percent of all commercial fish populations have either collapsed or are approaching collapse. Despite these trends, marine conservation lags far behind terrestrial initiatives. While about 12 percent of ...International science team tracks ocean predators around the globe
...helped determine that Atlantic and Pacific bluefin tuna undertake extensive migrations, crossing back and ...ping to craft international management schemes for tuna fisheries. Giant bluefins are the most valuable fish in the ocean, worth tens of thousands of dollar...Advanced sensors, computing systems tracking sea animals worldwide
...information about all living sea animals. "Bluefin tuna are now known to move from North Carolina to the Mediterranean," said Read. "How are we going to manage that? Wandering albatrosses might circumnavigate the Southern Ocean. How do we deal with the conservation of those animals and the various threats...Examining cardiac performance of tunas at the cellular level
...temperatures. While a better understanding of the tuna may seem of little consequence, what researchers l...thodology noted below: Fish: Four Pacific bluefin tuna (Thunnus orientalis), four albacore tuna (Thunnus alalunga) and three yellowfin tuna (Thunnus albaca...Expedition will retrace legendary Steinbeck-Ricketts voyage to the Sea of Cortez
...third largest fishery in Mexico by tonnage, behind tuna and sardines, and fourth in value. When Steinbeck and Ricketts sailed past Santa Rosalia in 1940, they were surprised to discover an industrial skyline in the midst of an otherwise isolated coast. "It is a fairly large town which has long been suppo...Nutrient-poor oceans generate their food 'hot spots'
...cant applications in fishing and in particular for tuna stock management. However, the exact nature of these floating particles remains, however, to be identified. Research investigations are already planned, notably as part of the MATI and Biosope projects of the national programme Proof. (1) IRD scient...Mercury in ocean fish may come from natural sources, not pollution
Mercury levels in yellowfin tuna caught off the coast of Hawaii have not changed in...the high levels of mercury that have been found in tuna and other ocean fish may not be coming from pollution, but from natural sources. The report wil...World's leading scientists issue unprecedented plan for protecting ocean and marine life
...nt of large, predatory fish populations, including tuna and marlin, have disappeared, mostly due to over-fishing and destructive fishing methods. Other threats, such as coastal development, pollution and climate change, are also devastating marine life. "It's stunning to consider that in the past few de...Mercury in packaged whale meat across Japan may be a major health problem
...ury, but longer-lived predators like odontocetes, tuna and sharks are the final repositories for many pollutants because of their position at the top of the food chain. Endo reported the current findings at a meeting of the Food Hygiene Society of Japan in Tokyo last week. The International Fund for Ani...Nature cover story - Only 10% of all large fish are left in global ocean
.... I want there to be hammerhead sharks and bluefin tuna around when my five-year-old son grows up. If present fishing levels persist, these great fish will go the way of the dinosaurs."...Leatherback sea turtles careening towards extinction
...lar, pelagic longlines used to catch swordfish and tuna and gill nets, pose the principal threats to leath...to reduce bycatches in some fisheries (dolphins in tuna seines and in gillnets, Kemp's ridley sea turtles in trawls, sea birds in longlines and gillnets)," ...Tagging the great white shark...and a few of his friends
...some 4,000 of the smartest dressed elephant seals, tuna fish, albatrosses, leatherback sea turtles, great white sharks, and other pelagic megafauna in the Pacific all be wearing in the coming seasons? How about the latest in microprocessor-based electronic tags, some no bigger than oversized cufflinks?...Macarthur Award winning physiologist to present Scholander Award and lecture
...arbara A. Block, Ph.D., a world renowned expert on tuna behavior and migration, will present the 2002 Comp...logy that has proven that it can shed new light on tuna migration. The microprocessor tags were deployed in 1996 and 1997 by scientists from Stanford Unive......ments. One such example of this phenomenon is the tuna fish. Tunas are regional endotherms, maintaining ...s the venous blood passes through the gills. Some tuna species also warm the viscera (internal organs) and brain through associated vascular networks or re...