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Tag: "fishing" at biology news

Evidence for omega 3 fats less conclusive than we thought, say experts

...on of oily fish and fish oils. However, industrial fishing has depleted the world's fish stocks by some 90% since 1950, and rising fish prices reduce affordability particularly for people with low incomes. Global production trends suggest that, although fish farming is expanding rapidly, we probably do not...

Oceans are 70 percent shark free

...e already threatened worldwide by the intensity of fishing activity but our finding suggests they may be more vulnerable to over-exploitation than was previously thought." The scientists based their conclusions on a wide range of data which includes information gathered during a major month long expedition ...

Pacific Islands paradise protected

...rotect the area from future threats including over fishing and help mitigate the effects of climate change," ...g the Phoenix Islands means restricting commercial fishing in the area, resulting in a loss of revenue that the Kiribati government would normally receive from...

Overfishing in inland waters reduces biodiversity and threatens health

...At the same time, some fish populations respond to fishing pressure with reductions in mean size at maturation. Allan and colleagues identify two main types of overfishing. One leads to marked declines in catch per unit effort and size of individuals captured. The second type is characterized by sequential ...

Plants, too, have ways to manage freeloaders

...s used strong thin lupine roots to make snares and fishing nets. In a preliminary study, she, Taylor and Povich used molecular markers to identify the different strains of the bacteria Bradyrhizobia that interact with roots of the six species of lupine found on the reserve site. They then tested 10 of thes...

Health of Acehnese reefs in the wake of the tsunami shows human impacts more harmful

...an activities prior to the tsunami. In areas where fishing has been controlled, such as the Marine Protected ...as high. In contrast, reefs exposed to destructive fishing had low coral cover and high algal cover, a change that the tsunami may exacerbate in bringing an in...

Ancient humans brought bottle gourds to the Americas from Asia

...long prized as containers, musical instruments and fishing floats. This lightweight "container crop" would have been particularly useful to human societies before the advent of pottery and settled village life, and was apparently domesticated thousands of years before any plant was domesticated for food purp...

Overfishing may drive endangered seabird to rely upon lower quality food

... the diet of the murrelet to the environmental and fishing conditions at the time the feather was created. "I...e trying to tease apart climate signals from human fishing impacts," said Ben Becker, the study's lead author. Becker was a UC Berkeley Ph.D. student at the ti...

Implantable pumps extend lives of patients too sick for transplant

... the normal activities of life, such driving cars, fishing and golfing." Patients who were on the LVADs scored significantly higher on standard measures of quality of life than patients in the control group, Rogers said. "This is a remarkably ill group of patients," Rogers continued. "When you look at the ...

Envisat radar surveillance protects endangered prehistoric fish

...ct the endangered Patagonian toothfish from pirate fishing vessels. Perched between Africa, India, Australia...s is one of the remotest places on Earth. Even so, fishing vessels are lured there by the prospect of catching one valuable species found in its surrounding wa...

Tsunami + 1 year: Reviving exhausted fisheries should trump replacing boats, gear, experts say

...0% of fishers died in the catastrophe. Impacts on fishing capacity and infrastructure were also profound. I...destroyed, along with about 40% of the small-scale fishing fleet and associated gear. Indonesia estimates damages to its capture fisheries sector at US$ 52 mi...

Deep treasure to be found in Oculina Bank

...m trawling, longlines, fish traps and anchoring by fishing vessels was prohibited. In 2000, the Coral HAPC w...rther restrictions including prohibition of bottom fishing for snapper and grouper species. However, surface trolling for species such as dolphin, tuna, and sa...

Pulp mill devastates swans' sanctuary in Chile

... this area are heavily dependent on tourism and on fishing along the coast, where CELCO now plans to discharge liquid waste," Tecklin added. ...

NRL scientists detect 'milky sea' phenomena

...fires, lightning, and human activity (city lights, fishing boats, etc.) around the world. However, there have been no previous reports or demonstrations of the OLS being used to detect bioluminescence. Dr. Miller and the research team searched ship reports of milky sea sightings since 1992 and compared thes...

Mammalian Transcriptome Mapped

...ribed from DNA. Basically, the project amounted to fishing all the RNA out of a variety of tissues and cells and sequencing the pieces that were found. While genomic DNA is comprised of some 3 billion "nucleotide" bases in humans and other mammals, RNA transcripts may be anywhere from a few dozen to several...

New molecule may aid in production of biofuels and fungi-resistant plants

...in are available for exploration, primarily due to fishing and farming of crustaceans such as shrimps," says Dr. Eijsink. "However, a current lack of technology limits the exploitation of these waste streams. CBP21-like proteins may become an important tool for effective, enzymatic processing of this valuabl...

Chernobyl: The true scale of the accident

...n high for decades and, therefore, restrictions on fishing there should be maintained. What environmental countermeasures and remediation have been taken? The most effective early agricultural countermeasure was removing contaminated pasture grasses from animal diets and monitoring milk for radiation level...

Restaurant seafood prices since 1850s help plot marine harvests through history

...an inflation. California banned commercial abalone fishing in 1997 and most supplies in state restaurants tod...ect is not all about "doom and gloom" and depleted fishing areas, he says. "We stress an understanding of the forces behind the changes." With respect to the ...

Researchers find Amchitka seafood safe for now

...ubsistence food and for the significant commercial fishing interests of the region," said Charles W. Powers, principal investigator for the consortium. He noted that expedition scientists sampled and analyzed for radionuclides many types of biota in the seas at Amchitka and a reference site, nearby Kiska: "R...

Drugs from the deep blue

...s," Molinski said. Molinski's group has also gone fishing for drugs that modulate calcium channels within cells, in collaboration with Isaac Pessah, professor and director of the Center for Children's Environmental Health at the UC Davis School of Veterinary Medicine. The controlled release of calcium is a ...

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