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Tag: "shellfish" at biology news

Scientists find method to pick noncompetitive animals, improve production

...dily available food sources, such as cannibalistic shellfish and game fish." ...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...rks in the oceans mean that bay scallops and other shellfish may be harder to find at the market, according to ...ve depressed these species," says Peterson, noting shellfish declines in areas occupied by cownose rays and examples of stable or growing shellfish populations i...

Ocean temperature predicts spread of marine species

... component in conservation and management of fish, shellfish and other marine species ?according to a new study from the University of North Carolina at Chapel Hill. Most marine life, including commercially important species, reproduces via larvae that drift far along ocean currents before returning to join a...

Sandia research to focus on early detection of harmful algal blooms

...uantify toxins - critical information for managing shellfish beds. The technologies under development at Sandia...e time the process is complete, it's too late: the shellfish beds are already toxic." The ability to quickly sample organisms low on the food chain, Lane said, c...

BGSU biologist trying to crack microscopic code

... the type of bacteria that is the leading cause of shellfish poisoning in the United States. It lives, he notes, in two "incredibly different environments"--estuaries of the Gulf of Mexico and Chesapeake Bay, and the human intestinal tract. That means the types of proteins in its outer membrane must change to ...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...us Alexandrium and are the source of the paralytic shellfish poisoning known as "red tide." A major red tide swept the New England coast in 2005, shutting down the clamming industry for weeks. What New Englanders call the "steamer, "long-neck," squirt clam," or "belly clam" ?or simply "the clam" -- is a...

Red Tide causes sea turtle die-off in El Salvador

...becoming sick. This was followed by the closure of shellfish beds in the area, a warning from the government against eating shellfish from affected areas, and the first instances of dead and dying sea turtles washing up on shore were ...

Ocean virus identified in human blood samples

...ems in seals, sea lions, whales, and perhaps fish, shellfish and other species. In general, the marine environment is "a relatively under-explored potential reservoir of human pathogens," the researchers said in their study. History suggests these viruses have rarely been confined to the ocean. A costly Vesiv...

Marine mammals are on the frontline of failing ocean health

...nds produced by specific algal blooms. Neurotoxic shellfish poisoning and other acute effects of consuming brevetoxins are not new to scientists. But Bossart and his colleagues' work on manatee die-offs associated with red tides shows that inhalation of the toxin is also a primary route of exposure. Recent ...

Marine conservation organizations team up to conduct Indonesia coral reefs assessment

...icient reef areas are protected such that fish and shellfish can prosper and reproduce." Shipboard expedition participants include: British marine biologist Annelise Hagan, Ph.D., the Khaled bin Sultan Living Oceans Foundation Research Fellow at Cambridge Coastal Research Unit, Department of Geography, Univer...

New genetic test can detect clam disease

... a local economy by killing clams and devastating shellfish harvests and commercial aquaculture operations. Q... The toxins that cause red tide in clams and other shellfish in New England do not kill the shellfish and will wash away once the red tide bloom diminishes, even...

Prenatal exposure to marine toxin causes lasting damage

...t we may need to re-evaluate monitoring of waters, shellfish and fish to make sure that the most sensitive part...y the diatom species called Pseudo-nitzschia. When shellfish and crabs ingest the algae, the toxin can become concentrated in their bodies. Humans eating conta...

Vibrio bacteria could be a risk to fish as well as humans

...these new species are similar to existing fish and shellfish pathogens. The new species, Vibrio brasiliensis, seems to be related to Vibrio tubiashii, which has long been known to cause disease in oysters. Professor Austin comments: "Having observed this, the question arose about whether any of these new spec...

Carnegie Mellon cyLab researchers work to develop new red tide monitoring

...handle thousands of cases in which humans ingested shellfish poisoned by red tide between 1987 and 1992, according to NOAA's 2005 Economic Statistics Report. At present, NOAA researchers must manually scan through thousands of images in order to test and evaluate models that determine where red tide is impact...

Use of high hydrostatic pressure to inactivate Hepatitis A virus in oysters studied

...remarkable concentration and persistence of HAV in shellfish exposed to the virus through their surrounding sea...irly resistant to heating and may remain viable in shellfish after up to five minutes of steaming. For these reasons, high hydrostatic pressure treatment of raw...

Research Reveals Functions Of Harmful Shellfish Pathogens

Providing safer shellfish is the goal of Agricultural Research Service (ARS)...aemolyticus. These bacteria are naturally found in shellfish and seawater, particularly when water temperatures are warm, and can lead to serious health concerns...

Mutation in clams protects against paralytic shellfish poisoning but raises human health risk

...can be affected by the toxins that cause paralytic shellfish poisoning (PSP), but scientists have now identifie...has wide ranging implications for the evolution of shellfish in the presence of toxic algae and increases the risk of PSP to people who eat clams by enabling con...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...ks of life-threatening diseases, such as paralytic shellfish poisoning, which can shut down mussel and clam har...cale, which could be devastating to the shrimp and shellfish industries," Matson said. "Shrimp fisheries are very important economically, and they're already und...

Iron Deficiency Sparks Dramatic Changes In Gene Expression

...trient iron. Iron is found abundantly inred meats, shellfish dried fruits, whole grains, spinach, seeds andother foods.Their study in yeast cells demonstrated that iron-starved cellspreserve the little iron they possess by shutting down the major ironusers in order to maintain the cell's essential functions, s...

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