Tag: "algae" at biology news
Report warns about carbon dioxide threats to marine life
... cause the coral to expel the colorful microscopic algae
that provide the coral polyps with food. Many ca... be affected. "Decreased calcification in marine algae
and animals is likely to impact marine food webs and has the potential to substantially alter the bi...
MIT warns of dumping seafood
..., such as finfish, crabs, oysters, clams, turtles, algae
and any animals or plants that may travel on seafood and seafood products. Invasive species are animals and plants that are introduced to new ecosystems, where they cause economic or environmental damage, or harm to human health. Each year, the Unite...
New study finds multiple invasions increase green crab's Canadian range
... prominent invaders as zebra mussels and the brown algae
Undaria. According to Roman, "It's clear that the pressure of these multiple invasions is having a devastating effect on our waterways." Invasive aquatic species can be released through ballast water, aquaculture, aquaria, and even live seafood....
Harmful Algal Blooms monitored from space in Chile
...ble to Harmful Algal Blooms, which occur when some algae
species producing poisons bloom rapidly in water, ...t, including one death. Just like plants on land, algae
employ green-pigmented chlorophyll for photosynthesis -- the process of turning sunlight into chemic...
Coral death results from bacteria fed by algae
(Santa Barbara, Calif.) Bacteria and algae
are combining to kill coral and human activities ...Human activities are contributing to the growth of algae
on coral reefs, setting the stage for the long-term continued decline of coral. Reporting in t...
North Pole's ancient past holds lessons for future global warming
...e opportunity" "We discovered the remains of tiny algae
called dinoflagellates, belonging to the species Apectodinium, which previously had been restricted to warmer regions of the world," said co-author Henk Brinkhuis, a marine palynologist and biogeologist from Utrecht University in the Netherlands. "Th...
Algae's protein 'tails' create motion and aid munching
... Brown University explain how flagella allow these algae
to get the energy they need to multiply and create...ion in biology." The team studied a group of green algae
known as the volvocines, organisms so common they can be found in puddles of rain. Biologists study ...
Overfishing puts Southern California kelp forest ecosystems at risk, report scientists
...alpern, project director at NCEAS. Kelp are giant algae
that reach up to 120 feet in height and support diverse ecosytems. They provide beautiful settings for scuba diving and are rich areas for commercial and recreational fishing. The research team took data from four years of marine life surveys by the...
Coral reef resilience: Better feeders survive bleaching
...water temperatures rise, coral expel single-celled algae
called zooxanthellae, which live inside coral tissue and give corals their color and, more importantly, supply the bulk of their food energy. If bleaching persists, corals die, leaving behind ghostly limestone skeletons. Some corals can survive bleac...
Tiny polyps gorge themselves to survive coral bleaching
...oral are symbiontic organisms that host one-celled algae
within their bodies for mutual benefit. The coral ...nes, provides a safe home within its cells for the algae
while the algae
convert sunlight into energy for the polyp. Grottoli said that when the temperature...
Carbon cycle was already disrupted millions of years ago
...an Breugel investigated chemical fossils of marine algae
and land plants from sediments deposited in the aforementioned periods. Plants and algae
assimilate CO2 from the air and water. Consequently changes in the isotope ratio are recorded in org...
'Dead zone' summer killed billions of ocean state mussels
...w the loss of so many mussels, which filter minute algae
called phytoplankton from the water, might affect ... lack of circulation, this nutrient rush can cause algae
blooms. When the algae
dies, it sinks to the bottom, where it is consumed by bacteria along with di...
Blind mice recover visual responses using protein from green algae
...as of blind mice can respond to light when a green algae
protein called channelrhodopsin-2 (ChR2) is inserted into the cell membranes, according to a National Institutes of Health (NIH)-supported study published in the April 6, 2006 issue of the journal Neuron. The study was conducted with mice that had be...
NASA helps researchers diagnose recent coral bleaching at Great Barrier reef
...ble temperatures force corals to cast out the tiny algae
that help the coral thrive and give them their col... a rift in the relationship between corals and the algae
that live within their bodies. "The Great Barrier Reef is an icon, and we just want to know what we...
Story tips from the Department of Energy's Oak Ridge National Laboratory, March 2006
...hod involves tissue-based biosensors such as green algae
and cyanobacteria for direct detection of chemical warfare agents. These living sensors are always present and continuously renewed by flowing water. As water samples pass through the cell, any changes that negatively affect photosynthetic capability...
Ocean 'dead zones' trigger sex changes in fish, posing extinction threat
...erways. These nutrients trigger the growth 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 sur...
Embryos tell story of Earth's earliest animals
...ion of 570-million-year-old fossils interpreted as algae
and animals. Many scientists doubted the Nature report, citing a lack of evidence that something as soft as an embryo could survive long enough for fossilization to occur. "It appears these formations in China had the conditions that would have pres...
Ultrasound and algae team up to clean mercury from sediments
Ultrasound and algae
can be used together as tools to clean mercury fro...Sayre's team has genetically modified a species of algae
to boost its natural ability to absorb heavy metals. In laboratory tests, student He vibrated an ult...
Red Tide causes sea turtle die-off in El Salvador
...it: saxitoxin, which is produced by the species of algae
and sea plankton that cause the phenomenon known as "Red Tide." "The rapid response and subsequent diagnosis in this outbreak demonstrates the power of collaboration among governments and non-governmental organizations," said White, who collected ti...
Cold case: Looking for life on Mars
...erences in rock-dwelling communities of blue-green algae
(cyanobacteria) and fungi. Further, they identified over 90 different compounds that can be correlated to biosignatures of those life forms. These fingerprints will be part of an enormous library of signatures to which Martian samples can be compared...
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