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Tag: "stocks" at biology news

Research identifies protein that signals flowering in squash plants

...nducted using flowering Cucurbita maxima (pumpkin) stocks (the stock is the portion below the graft union co...smission of a florigenic signal from the C. maxima stocks through the phloem into the scions. Analyses performed on phloem sap collected from these flowering ...

Scientists seek useful traits in wild cottons

...on research assistant Leslie Wells supervises seed stocks from planting through harvest. His skill in making...otton gene pool. That will benefit global breeding stocks and lead to varieties that are more flexible and productive."...

How fish species suffer as a result of warmer waters

...g a link between global warming and declining fish stocks were based entirely on statistical data. However, in order to estimate future changes, it is essential to develop a deeper understanding of the effect of water temperature on the biology of organisms under question. A new investigation, just publishe...

Twenty of world's 162 grouper species threatened with extinction

...esource for humans, similar to the loss of the cod stocks off New England and Canada that has put thousands of people out of work,?said Roger McManus, a senior director of Conservation International’s Marine Program. The ground-breaking workshop at the Department of Ecology and Biodiversity of the Univer...

Fish growth changes enhanced by climate change

...ced some elements of productivity of shallow-water stocks but at the same time reduced the productivity and possibly the resilience of deep water stocks,?he says. A biological oceanographer with CSIRO’s Wealth from Oceans Research Flagship, Dr Thresher said the research ?published in the latest edition o...

Special chip provides better picture of salmon health

...armers monitor the health and performance of their stocks through methods such as changing their nutritional intake." So far the scientists have identified the genes and metabolic pathways which influence the most commercially important traits for the production of salmon. These are; the supply of contam...

Commercial fishing causes dangerous fluctuations in fish populations

...ons mean current measures in place to control fish stocks may not be sufficient to ensure their sustainabili... that this increased variability in exploited fish stocks was most likely to be caused by the effect fishing has on the age structure of a population. Heavily...

Researchers appeal for new regulations to save coral reefs from live fish trade

...live fish, these roving bandits deplete coral reef stocks before local institutions have time to implement laws to regulate the poaching. The bandits take advantage of porous world trade policy and ineffective fisheries management to sell their plunder," says Dr Helen Scales, from the Department of Zoology,...

Creating a window on 'oceans in motion'

..., and to the potential of abundant and sustainable stocks of commercial fish, they will also provide scientists with a massive increase in observations of rapidly shifting marine conditions in this era of climate change," says Dr. O'Dor. The conference marks the first meeting of all stakeholders in the glo...

One fish, two fish: New MIT sensor improves fish counts

...s believe are in rapid decline. "The world's fish stocks are being depleted at a horrible rate," said Makris, who attributed declining populations to overfishing, a problem that has been abetted by inaccurate fish counts. "One of the reasons (for the inaccurate counts) is the darkness in the ocean. You don...

Carbon cycle was already disrupted millions of years ago

...sed by a sudden large-scale release of carbon from stocks stored in the ocean floor or peats and bogs. The atmospheric carbon dioxide concentration is increasing as a consequence of the large-scale use of fossil fuels in the industrial era. This has apparently brought about a stronger relative increase in...

Virginia Tech helping to develop higher quality, disease-resistant wheat varieties

...tion will be stored in national databases and seed stocks deposited in USDA's Small Grain Collection, providing long-term public access to genetic information and resources for wheat breeders and researchers nationwide. Public sector researchers are primarily responsible for providing new wheat varieties t...

Hooked on fishing, and we're heading for the bottom, says scientist

...try to a level that allows for sustained catch and stocks to rebound." This past October, Dr. Pauly was awarded the prestigious 2005 International Cosmos Award. The award recognizes exemplary research that "promotes the harmonious co-existence of nature and mankind." Dr. Pauly, 59, has authored or co-auth...

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

..., 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 have a sustainable supply of long ch...

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

...misery is very real." WorldFish says data on fish stocks is lacking for the specific places most affected b...over-fishing. "Given the likely depletion of fish stocks in the tsunami affected areas, what is certain is that these conditions cannot be met by simply retu...

A new link between stem cells and tumors

...may die through age or injuries, so the body keeps stocks of stem cells on hand to generate replacements. Usually the stem cell divides into two types: one that is just like the parent, which is kept to maintain the stock, and another that differentiates. This is what happens with neuroblasts. Cell division...

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

...e price of abalone coincident with the collapse of stocks along the California coast. San Francisco menus, ... equivalent of $20 in the 1860s to $100 in 1910 as stocks collapsed. Professional hunters harvested up to 1,000 per day to supply restaurants, says Dr. Jones,...

Leptin-signaling Protein Maintains Normal Body Weight And Energy Balance In Mice

...ce organization, warn exploitation of natural fish stocks is leveling off as the population steadily grows. ...d for strategic investments to better natural fish stocks management, develop aquaculture and enhance Africa's fish trade at every level. Regional and nation...

Crisis in African fish supplies looms, experts warn Africa leaders

...ce organization, warn exploitation of natural fish stocks is leveling off as the population steadily grows. ...d for strategic investments to better natural fish stocks management, develop aquaculture and enhance Africa's fish trade at every level. Regional and nation...

Solutions that reduce death of marine life reeled in by International Smart Gear Competition

...eans and a win-win proposition for fishermen, fish stocks and our marine ecosystems," said Malcolm McNeill, a judge for the International Smart Gear Competition and vessel manager of global fishing company Sealord Group Ltd. "Fishing responsibly and reducing bycatch is a top priority for Sealord so we're ea...

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