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Tag: "catch" at biology news

Releasing fish for the future

...ling, between 30 and 50% of the total recreational catch is released each year in Australia. This amounts to more than 47 million fish being caught and released annually. New research is now seeking to maximise the post-release survival of other commonly-caught species including luderick, sand mullet, g...

Plants recognize their siblings, biologists discover

...better than others, and scientists are starting to catch up with why that happens,” says Dudley. “What I’ve found is that plants from the same mother may be more compatible with each other than with plants of the same species that had different mothers. The more we know about plants, the more complex their...

The kapok connection -- Study explains rainforest similarities

... said Dick, "and this study is one of the first to catch that process in action at the species level. Although single seeds are very unlikely to survive an oceanic voyage and then successfully become established elsewhere, such improbable events become probable over 10 to 15 million years." Dick studied...

Toxoplasmosis infection trick revealed by scientists

... to be infected, and around 1% of people in the UK catch toxoplasmosis each year. In the majority of cases, those affected don’t have any symptoms. But for those with weakened immune systems, and unborn babies, toxoplasmosis can cause very serious health problems....

Decoding protein structures helps illuminate cause of diabetes

...ecular structures quickly and accurately enough to catch moving proteins in mid-fold and see the shapes of intermediate steps. As described in this week's online issue of the Proceedings of the National Academy of Sciences, the first applications of the technique offer a glimpse into the contorted form of...

Tracking sperm whales and jumbo squid

...th numerous small fishing boats hauling in a total catch of about 10,000 squid per night throughout the six...e there or not. Perhaps it’s the only way they can catch them, but no one has ever seen a sperm whale feeding in the wild, so nobody really knows how they ca...

Study finds surfing safer than soccer

...her hand, recreational surfers are often trying to catch waves in a dense crowd of surfers of varying abilities," says Nathanson. The authors note that although age and gender had no bearing on the injury rate, wave size and bottom type, independently, were significantly associated with a great chance o...

New research shows that flu is a trigger of heart attacks

...k factors," he said. "Between 10 and 20% of people catch flu every year, and I have estimated that we can p... percentage of the population could be expected to catch the illness. "In the majority of influenza epidemics (except for the 1918 Spanish flu pandemic) c...

Computer scientists join in search for ivory-billed woodpecker

...r Brinkley, Ark., for birds. "If the system can catch any kind of bird, that's a success for us," Song said. "But if it catches an ivory-bill, that's a bonus." With a grant from the National Science Foundation, Song and Goldberg programmed ACONE to distinguish birds from other objects and only record...

New test for most virulent HPV strains under study

...would continue to be used in the under-30 group to catch the few infections that become problematic in this age group. Currently, there are not FDA-approved drugs to cure cervical pre-cancers and cancers caused by HPV, although centers such as MCG are evaluating potential therapies. Resulting cervical c...

Microfluidic chip helps solve cellular mating puzzle

...st cells mate by sending out pheromone designed to catch the attention of nearby cells of the opposite mating type. When a prospective partner picks up this "scent," it alters its shape and sends a projection toward the source of the pheromone, leading to a cellular merger. This mating process is regulated...

When smell cells fail they call in stem cell reserves

...ault from harsh chemicals that one might happen to catch a whiff of by accident, risking damage or death. To figure out how the olfactory system repairs severely damaged nerve cells, Reed’s team exposed mouse olfactory nerves to a cloud of toxic methyl-bromide gas. Methyl bromide kills not only olfacto...

How does your brain tell time?

... behaviors -- from understanding speech to playing catch to performing music -- rely on the brain’s ability to accurately tell time. Yet no one knows how the brain does it." The most popular theory assumes that a clock-like mechanism ?which generates and counts regular fixed movements -- underlies ti...

By 2048 all current fish, seafood species projected to collapse

...nd seafood species have collapsed -- that is their catch has declined by 90 percent. It is a very clear tre... data. Then, the team compiled global fisheries catch data from 64 large marine ecosystems to test for the effects of large-scale species loss on fisherie...

Why don't all moles progress to melanoma?

...ss incoming amino acids, giving the ER a chance to catch up. If that doesn't work, the UPR causes the cell to destroy itself in a process called apoptosis. "Traditionally, the ER's role was considered to be limited to protein folding or protein modification," Soengas says. "But scientists like Randal Kau...

Triple threat: World fin trade may harvest up to 73 million sharks per year

...the total is three to four times higher than shark catch figures reported to the United Nations Food and Ag... sharks is the blue shark, and it appears that the catch rate is near the maximum sustainable level," says Clarke. "But such assessments were not available ...

Transplanted brain cells hold promise for Parkinson's disease

...rarely happens since there is no screening test to catch it early. "Right now we are saying if you are able to identify Parkinson’s in the early stage, we think this therapy will work. An important question that remains is, ‘Can we rescue neurons that are dying from Parkinson’s"?This would more accurat...

Sex and the heart: It's not what you think

...iddle age. But the break-even point at which women catch up to men is now at age 60, 10 years earlier than before. "Women are no longer protected from heart disease risk relative to men," said Eileen Crimmins, corresponding author and professor in USC Leonard Davis School of Gerontology. "Reports indicati...

Commercial fishing causes dangerous fluctuations in fish populations

...are managed by governments setting total allowable catch limits (TACs), but a fixed TAC which doesn't take into account the variability of abundance over time, may mean that in some years it is completely incompatible with the population size. This means that fishing vessels could unwittingly overexploit t...

On the golf tee or pitcher's mound, brain dooms motion to inconsistency

...ement are novel. Predators never get the chance to catch and kill prey in exactly the same fashion and in exactly the same conditions. "The nervous system was not designed to do the same thing over and over again," Churchland says. "The nervous system was designed to be flexible. You typically find yours...

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