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phytoplankton in Medical News

MIT research could help predict red tide

..., Mass.--Not far beneath the ocean's surface, tiny phytoplankton swimming upward in a daily commute toward morning ...common, startlingly dense layers of photosynthetic phytoplankton form, moves the scientific community a step closer...his fact is often neglected by researchers because phytoplankton are slow compared to ocean currents. However, we h...

Genome sequence of lancelet shows how genes quadrupled during vertebrate evolution

... a stiff cartilaginous notochord that it vibrates to swim and burrow in the sand, where it nestles during the day with its head sticking out to filter phytoplankton from the water. The lancelets typically emerge from the sand at night and swim with lateral movements. "If you think about what the original ancest...

ESA contributes to ocean carbon cycle research

...lants that live in the well-lit surface layer. Just like land-based plants, phytoplankton accumulate carbon dioxide during photosynthesis and store it in their tissues, making them potentially important carbon sinks. While phytoplankton themselves are individually microscopic, the chlorophyll they collectively ...

Climatic variations influence the emergence of cholera in Africa

...son of the frequencies of epidemic outbreaks with a range of climatic or environmental parameters (climate variability index, volume of precipitation, phytoplankton concentration near the coasts). This approach also takes into account the random variation of frequencies of emergence of epidemic foci. The resear...
phytoplankton in Biological News

Breakthrough made in assessing marine phytoplankton health

CORVALLIS, Ore. Researchers from Oregon State University, NASA and other organizations said today that they have succeeded for the first time in measuring the physiology of marine phytoplankton through satellite measurements of its fluorescence an accomplishment that had been elusive for years. ...

A new view of oceanic phytoplankton

Phytoplankton comprise the forests of the sea, and are responsible for providing nearly half of the oxygen that sustains life on Earth including our own. However, unlike their counterparts on land, the marine plants are nearly exclusively microscopic in size, and mostly out of human sight. Conse...

Marine phytoplankton changes form to protect itself from different predators

Suppressing colony formation is a useful strategy against copepods because they prefer to eat colonies of phytoplankton. A tiny single-celled organism that plays a key role in the carbon cycle of cold-water oceans may be a lot smarter than scientists had suspected. In a paper published June 1...

Symposium to discuss geoengineering to fight climate change at the ESA Annual Meeting

...ncrease carbon uptake from the atmosphere. Charles Miller of Oregon State University says that ocean fertilization could create a rise in iron-limited phytoplankton populations, which by dying and sinking would use enough oxygen to create extensive dead zones in the oceans. In addition, he says, the maximum possib...

Humans 'damaging the oceans'

...o play a role in the proposed solution of eliminating carbon emissions, by producing clean energy from wind, wave and tide potentially by triggering phytoplankton blooms with fertilisers to absorb more carbon from the atmosphere, or using the seabed to store CO2. However these require far more research to be sur...

NOAA bans commercial harvesting of krill

...ecies." This new group may not be caught or taken by any fishery or gear type within the EEZ. Krill are important because they convert microscopic phytoplankton into a food source for numerous other species and are a principal food source for many species of fish, seabirds and marine mammals. Some of the spec...

Iron and biological production in the high-latitude North Atlantic

... interactions. Tiny plant-like organisms called phytoplankton dominate biological production in the sunlit surfa...arming. Iron is an essential micro nutrient for phytoplankton growth. In high-nutrient, low-chlorophyll (HNLC) oceanic regions, phytoplankton growth is limited by low iron availability. Classi...

Troubled waters: Low Apalachicola River flow may hurt gulf fisheries

...in years with low river flow, the concentration of phytoplankton -- the microscopic plant-like organisms that feed ...have hypothesized that year-to-year changes in the phytoplankton can alter the availability of food for the very yo...ean color, which is indicative of the abundance of phytoplankton and other organic material in the water, is linked...

NASA satellite detects red glow to map global ocean plant health

...e amount of fluorescent red light emitted by ocean phytoplankton and assess how efficiently the microscopic plants ...the center of the ocean food web. Single-celled phytoplankton fuel nearly all ocean ecosystems, serving as the m...ls from zooplankton to fish to shellfish. In fact, phytoplankton account for half of all photosynthetic activity on...

Microfossils challenge prevailing views of the effects of 'Snowball Earth' glaciations on life

...eutrophication, and occurs today in coastal areas and lakes that receive abundant runoff from fertilizers used in farming. "One or a few species of phytoplankton monopolizes nutrients at the expense of others," said Porter, explaining the die-off of diverse acritarchs. "In addition, the algal blooms result in h...
phytoplankton in Biological Technology

Nanoscience will change the way we think about the world

...n-dwelling phytoplankton, which removes carbon dioxide from the atmosphere. phytoplankton growth is limited by iron availability, the authors report, citing research...d atmospheric deposition. Nanoscale reactions resulting in the formation of phytoplankton biominerals such as calcium carbonate are also important influences on ocea...
phytoplankton in Biological Definition

Alga

...shallow water and provide distinctive habitats. Microscopic forms, called phytoplankton , provide the food base for marine food chains . phytoplankton can be present in high densities, called algal blooms , which might be vis...

Homeostasis

...s are able to grow better and thus remove more carbon dioxide from the atmosphere. When sunlight is plentiful and atmospheric temperature climbs, the phytoplankton of the ocean surface waters thrive and produce more dimethyl sulfide , DMS. The DMS molecules act as cloud condensation nuclei which produce more c...

Marine biology

...n as small as 0.02 micrometers, and together with phytoplankton , hugely important as the primary producers of t...he beginning of the 21st century . The role of phytoplankton is better understood due to their critical positi...n as the most numerous primary producers on Earth. phytoplankton fit into these categories: cyanobacteria (also cal...

Alga

...shallow water and provide distinctive habitats. Microscopic forms, called phytoplankton , provide the food base for marine food chains . phytoplankton can be present in high densities, called algal blooms , which might be vis...
phytoplankton in Biological Dictionary

Food web

...among organisms in a community. ... What is a food chain? Find out why there are more herbivores ... killer whales in an ocean food web ... phytoplankton small fishes seals ... food web ... Welcome to Food Web ! ... Food Web . This content requires JavaScript and Macromedia Flash Player 7 o...
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