blooms 2 1

Tag: "blooms" at biology news

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...es of hydrothermal venting may stimulate microbial blooms on abyssal hill fault scarps, thus providing a potential food source for ridge flank biota, and an opportunity for researchers to sample the biosphere below the sea floor." The sides of abyssal hills are fault escarpments (or scarps) created by vert...

NASA study finds snow melt causes large ocean plant blooms

...n range is creating conditions for more widespread blooms of ocean plants in the Arabian Sea. The decrease ...ding to more intense upwelling and more widespread blooms of phytoplankton along the coasts of Somalia, Yemen and Oman. According to Goes, while large blooms...

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

...nking large-scale coastal farming to massive algal blooms in the sea. Writing in the March 10 issue of the ...icroscopic algae called phytoplankton. These algal blooms are natural events that benefit life in the gulf by generating tons of phytoplankton-a major source ...

Man-made wetland's effectiveness similar to natural marsh

... excessive growth of algae and algal blooms. These blooms thrive on the nutrients and deplete the water of nearly all of its oxygen. Wetlands experts estimate that the American Midwest has lost about 80 percent of its wetlands in the last two centuries, compared to a 50 percent loss overall in the lower 48...

Scientists find viruses can't stick to sea bugs in the dark

...phins and seals, and even humans. Control of these blooms is vital to the health of the seas. "Research using cyanophages to control blooms of cyanobacteria must take light into consideration," explains Ying Jia. Algal blooms can use up the...

'Sinkers' provide missing piece in deep-sea puzzle

...plumes. Other scientists have suggested that algal blooms or the sunken carcasses of whales and other large animals could account for the missing food. Robison believes that, although these sources may be important in some areas, they are not persistent enough or substantial enough to account for what is ap...

UCR environmental scientists propose chemical solution to cleaning California's Salton Sea

...ppear to be the best approaches for reducing algae blooms in the Salton Sea," Amrhein said. Unless measures are taken to clean the Salton Sea, evaporation will result in the sea being too salty for fish, resulting also in the loss of fish-eating birds frequenting an area that is home also to several endang...

Ocean 'dead zones' trigger sex changes in fish, posing extinction threat

...h of huge algae and phytoplankton blooms. As these blooms die, they sink to the ocean floor where they are decomposed by bacteria and other microorganisms. Decomposition depletes most of the oxygen in the surrounding water, making it difficult for marine life to survive. Although some hypoxic areas ?dead ...

Marine mammals are on the frontline of failing ocean health

...die-offs are revealing new health impacts of algal blooms - for both manatees and humans. "Recent, frequen... seagrass or fish." Many scientists believe algal blooms are likely caused by multiple stresses, such as nutrient overloading and global warming, acting toge...

Red Tide causes sea turtle die-off in El Salvador

...tality." The first reports of these deadly algal blooms came in November along El Salvador's southern coas...rs, and occasionally human deaths. While the algal blooms are a natural occurrence, human wastes such as run-off containing fertilizers and sewage from urban ...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...ophyll content of the water (an indicator of algal blooms or "primary productivity"). "We can now use animals to show us things like the thermal properties and cooling rates of the ocean and the structure of the water column, and they can often get valuable data that would be hard to collect by other mean...

Study reveals classic symbiotic relationship between ants, bacteria

...rsity of Kansas, and his team removed the external blooms of bacteria from two ant species in the genus Cyphomyrmex and examined the exoskeleton beneath with a high-powered microscope. Their investigation revealed crypts attached to endocrine glands, both of which were previously unnoticed by scientists. ...

Harmful Algal Blooms monitored from space in Chile

...ase of shellfish, such as mussels, toxins from the blooms accumulate in their body tissues and pose serious health risks for humans when consumed. For instance, in 2002 an HAB outbreak in Chile was responsible for 73 paralytic poisonings and two deaths. In 2004, more than 1500 cases of poisonings occurred r...

Researchers find that bumblebees' flower choice matters

...flowers they probe and in what order, and how many blooms they visit before moving on to another plant. In doing so, the bees make plant reproduction possible by dispersing pollen. But why go to such lengths to map the flight of the bumblebee? It may seem random and inconsequential. But it is neither, say...

Sandia research to focus on early detection of harmful algal blooms

...ccessfully detect deadly toxins from harmful algal blooms (HABs). The funding is provided by the Cooperative...for coastal ecology and fisheries Harmful algal blooms are widely acknowledged to be a severe coastal resource management issue, adversely impacting virtua...

Researchers link ocean organisms with increased cloud cover and potential climate change

...ced that cloud properties over large phytoplankton blooms were significantly different from those that occur...nditions during the seasons in which phytoplankton blooms appear. "This seems to be one of those rare regions in the globe where the biology really takes ove...

By 2048 all current fish, seafood species projected to collapse

...ncrease the risks of beach closures, harmful algal blooms (red tide, for example), oxygen depletion, fish kills and coastal flooding. "The good news is that it is not too late to turn things around," Worm said. The scientists studied 48 areas worldwide that have been protected to improve marine biodiversi...

Researchers to study why dead zone returned to Lake Erie

...ell known. The nitrogen in fertilizer causes algae blooms that sink to the bottom and are consumed by bacteria, which consumes oxygen. The second theory is that the zebra mussels may shunt the oxygen-consuming organic matter from the near shore to the bottom waters. In the third scenario, global warming ...

Ocean's 'twilight zone' may be a key to understanding climate change

...ge by fertilizing the oceans with iron--to promote blooms of photosynthetic marine plants and transfer more carbon dioxide from the air to the deep ocean. "The twilight zone is a critical link between the surface and the deep ocean," said Ken Buesseler, a biogeochemist at Woods Hole Oceanographic Institu...

World's largest flower evolved from family of much tinier blooms

...ocking is the plant's carcass-like appearance: Its blooms are a mottled blood red, reek of decaying flesh, and in some cases even emit heat, much like a recently killed animal. These traits help the flower attract the carrion flies that pollinate it. "While it's surprising to find this giant plant evolved...

1 2