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单词 diatom
例句 diatom
And my dad liked learning about the diatoms. Unusual Chickens for the Exceptional Poultry Farmer 2015-05-12T00:00:00Z
“They’re organisms called diatoms. I just read that they produce up to half the oxygen on the planet.” In the Netherlands, exploring the Wadden Sea — on foot 2021-08-12T04:00:00Z
Diatom Ribbons” draws its name from the tiny, single-cell algae known as diatoms that live in waterways around the world and produce half of our breathable oxygen. Kris Davis, a Pianist Fighting for Fringe Music 2019-10-02T04:00:00Z
Most are microscopic, single-celled organisms like amoebas, algae, and diatoms, but larger multicellular protists exist -- such as kelp, slime moulds, and red algae. The end of genes: Routine test reveals unique divergence in genetic code 2023-10-05T04:00:00Z
Maussan says that the pair of mummified aliens were discovered in a diatom mine in Cusco, Peru. Were "alien mummies" really revealed in Mexico? Here's what we know 2023-09-13T04:00:00Z
The diversity and number of benthic diatoms make South Korean tidal flats unique, as does its thick mud—over 80 feet deep in some tidal flats. South Korea is a test case on how to fight an ecological disaster 2023-08-15T04:00:00Z
Members of this subgroup range in size from single-celled diatoms to the massive and multicellular kelp. Fundamentals of Biology 2015-01-01T00:00:00Z
In fact, approximately one-quarter of the world’s photosynthesis is conducted by protists, particularly dinoflagellates, diatoms, and multicellular algae. Concepts of Biology 2013-04-25T00:00:00Z
Goff and other researchers also look for microscopic marine organisms like diatoms and foraminifera, ancient DNA from marine life, changes to geochemistry, and, as in the Atacama, unexpected boulders. Ancient Tsunami Detectives Hunt for Long-Lost Cataclysms 2023-03-01T05:00:00Z
In its waters, tiny single-celled algae called diatoms bloomed each spring and summer and then died and sank to the bottom. Exquisite Fossils Show an Entire Rain Forest Ecosystem 2022-09-13T04:00:00Z
The crustaceans also graze on diatoms, single-celled algae that grow on the red algae. Is this pillbug-like organism a pollinator of the sea? 2022-07-27T04:00:00Z
By expelling a stream of mucopolysaccharides from the raphe, the diatom can attach to surfaces or propel itself in one direction. Fundamentals of Biology 2015-01-01T00:00:00Z
Recently, microscopic examination of the bills focused on diatoms, a strain of algae found on the bills. Ralph Himmelsbach spent the last 9 years of his FBI career on the 1971 D.B. Cooper hijacking, and then put it squarely behind him — at least, until someone else brought it up 2022-01-23T05:00:00Z
She cleverly linked the mysterious seizures and deaths of hundreds of California sea lions with the harmful diatom Pseudo-nitzschia and its by-product, domoic acid. These Shellfish Could Kill You 2022-01-24T05:00:00Z
At the same time, domoic acid — and the diatom that produces the naturally occurring marine toxin — seems to have almost disappeared from ocean waters off Oregon and Washington. West Coast Dungeness crab season to open Dec. 1 for first time in years 2021-11-24T05:00:00Z
These brown-green algae cells are encased in a silica shell — giving diatoms a spangled, jewel-like appearance under the microscope. Years after the devastating ‘Blob,’ ocean conditions appear to be improving, plankton survey shows 2021-06-14T04:00:00Z
During periods of nutrient availability, diatom populations bloom to numbers greater than can be consumed by aquatic organisms. Fundamentals of Biology 2015-01-01T00:00:00Z
The diatoms observed were consistent with algae blooms found in April, indicating the money entered the river in April, not in November, the month the crime occurred. Ralph Himmelsbach spent the last 9 years of his FBI career on the 1971 D.B. Cooper hijacking, and then put it squarely behind him — at least, until someone else brought it up 2022-01-23T05:00:00Z
Like PSP toxins found in Alaska’s shellfish, the poison is tasteless and odorless, and the diatoms are not neutralized by cooking. These Shellfish Could Kill You 2022-01-24T05:00:00Z
In Oregon, domoic acid and pseudo-nitzschia, the diatom that produces the toxin, is just “background noise at this point,” said Matt Hunter, shellfish project manager with the Oregon Department of Fish and Wildlife. West Coast Dungeness crab season to open Dec. 1 for first time in years 2021-11-24T05:00:00Z
These upwelling nutrients and the long daylight hours fuel a burst of diatoms that stoke marine productivity. Years after the devastating ‘Blob,’ ocean conditions appear to be improving, plankton survey shows 2021-06-14T04:00:00Z
The excess diatoms die and sink to the sea floor where they are not easily reached by saprobes that feed on dead organisms. Fundamentals of Biology 2015-01-01T00:00:00Z
The chain-forming diatom thalassiosira by the billions is what created the color, a result of the brown chloroplasts in each tiny algae cell. Ghost shrimp, humpbacks, tiny plankton: See Puget Sound surge with springtime life 2021-04-25T04:00:00Z
Although the Seldovians have already found the diatom in their waters, they have not detected any large blooms with it—yet. These Shellfish Could Kill You 2022-01-24T05:00:00Z
The algal cell pictured here in red, a Coscinodiscus diatom, is 90 micrometers across, or one tenth the width of a ballpoint pen’s tip. Even Tiny Phytoplankton Have Microbiomes 2021-02-19T05:00:00Z
Nanowire bacteria, for example, can strip electrons from organic materials, such as dead diatoms, then shuttle them to other bacteria that produce methane—a potent greenhouse gas. ‘Electric mud’ teems with new, mysterious bacteria 2020-08-19T04:00:00Z
As a result, the carbon dioxide that the diatoms had consumed and incorporated into their cells during photosynthesis is not returned to the atmosphere. Fundamentals of Biology 2015-01-01T00:00:00Z
In the ocean, the best-known host systems for RNA viruses are the single-celled algae, particularly diatoms, but other phytoplankton and protists serve similarly. The Ocean Carries ‘Memories’ of SARS-CoV-2 2020-08-15T04:00:00Z
"The Cooper bill contained diatoms from summer bloom species suggesting that the money was not directly buried dry and the immersion happened months after the late November hijacking," the study's abstract states. DB Cooper case gets new clues in tiny algae found on ransom money, study says 2020-08-04T04:00:00Z
Michael Arts, a professor at Ryerson University in Ontario, says that diatoms and other marine algae “are really the biggest factories on this planet.” Slimy Mudflat Biofilms Feed Migratory Birds—and Could Be Threatened 2020-06-17T04:00:00Z
His team’s modelling approach assigned functions to more than 1,000 diatom genes, which collectively perform nearly 4,500 interconnected biochemical reactions, and predicted where in the cells these reactions are likely to occur. Modelling the complex web of host–microbiome interactions 2020-05-25T04:00:00Z
This micrograph shows translucent blue diatoms, which range widely in size and shape. Fundamentals of Biology 2015-01-01T00:00:00Z
Longstanding scientific biases mean that the genomes of uncharismatic creatures — such as barnacles, scorpions and diatoms — are less likely to be sequenced and identifiable, even if they are vulnerable to extinction. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
Instead, they build up a thick, yellow film of microscopic diatoms on their skin. Scientists say they’ve cracked the mystery of why whales migrate—and it’s all about healthy skin 2020-02-21T05:00:00Z
The Roberts Bank diatoms produce a big pulse of lipids, including essential fatty acids, during April and May. Slimy Mudflat Biofilms Feed Migratory Birds—and Could Be Threatened 2020-06-17T04:00:00Z
Algae includes everything from micro-algae, like microscopic diatoms, to very large algae, such as seaweed and kelp. Lethal algae blooms – an ecosystem out of balance 2020-01-04T05:00:00Z
The bottom level of the illustration shows primary producers, which include diatoms, green algae, blue-green algae, flagellates, and rotifers. Fundamentals of Biology 2015-01-01T00:00:00Z
But he spotted something out of place among the glassy diatom shards: the shell of a shrimp-like crustacean with legs still attached. EXCLUSIVE: Tiny animal carcasses found in buried Antarctic lake 2019-01-17T05:00:00Z
High concentrations of diatoms can accumulate potentially harmful bacteria, adversely affecting both killer and baleen whales. Scientists say they’ve cracked the mystery of why whales migrate—and it’s all about healthy skin 2020-02-21T05:00:00Z
The quality and quantity of essential fatty acids created by the mudflat diatoms varies throughout the year. Slimy Mudflat Biofilms Feed Migratory Birds—and Could Be Threatened 2020-06-17T04:00:00Z
By matching up the diatom species found in the core with records of when those species went extinct in other areas, they hope to date the movements of the West Antarctic Ice Sheet. The hunt for life below Antarctic ice 2018-12-11T05:00:00Z
Chromalveolates include very important photosynthetic organisms, such as diatoms, brown algae, and significant disease agents in animals and plants. Fundamentals of Biology 2015-01-01T00:00:00Z
The remains are young compared to those of other ancient organisms found in the lake, such as the diatoms, which are thought to have lived millions of years ago. EXCLUSIVE: Tiny animal carcasses found in buried Antarctic lake 2019-01-17T05:00:00Z
The authors measured the ratios of stable oxygen isotopes in the diatoms. A fresh take on ancient climate change in the North Pacific 2018-07-10T04:00:00Z
In the sea and along its shores swarm organisms of the other living world — marine diatoms, crustaceans, ascidians, sea hares, priapulids, coral, loriciferans and on through the still mostly unfilled encyclopedia of life. Opinion | The 8 Million Species We Don’t Know 2018-03-03T05:00:00Z
Harwood and his colleagues will study the microscopic diatom shells that they expect to find at the bottom of Lake Mercer. The hunt for life below Antarctic ice 2018-12-11T05:00:00Z
Like diatoms, golden algae are largely unicellular, although some species can form large colonies. Fundamentals of Biology 2015-01-01T00:00:00Z
As the scientists analyze that mud, it may yield more diatoms. Deep Bore Into Antarctica Finds Freezing Ice, Not Melting as Expected 2018-02-16T05:00:00Z
The authors found that the simulation in which freshwater input was confined to the North Atlantic did not indicate that low-salinity waters entered the North Pacific Ocean, contradicting the findings from their diatom measurements. A fresh take on ancient climate change in the North Pacific 2018-07-10T04:00:00Z
False-colour image of fossilized diatoms, single-celled algae that may trigger underwater landslides. The slippery cause of huge underwater landslides 2018-02-18T05:00:00Z
Microbes called diatoms and other algae that use light to feed themselves may find themselves entombed for days or weeks without oxygen or light due to the vagaries of wind, wave, and tide. In a World of Shifting Sand, Algae Turn to Dark Fermentation 2018-02-03T05:00:00Z
The bottom level of the illustration shows primary producers, which include diatoms, green algae, blue-green algae, flagellates, and rotifers. Fundamentals of Biology 2015-01-01T00:00:00Z
However, the addition of both nitrogen and iron increased concentrations of chlorophyll a by up to approximately 40-fold, led to diatom proliferation, and reduced community diversity. Nutrient co-limitation at the boundary of an oceanic gyre 2017-10-31T04:00:00Z
Indeed, when the authors simulated this scenario, it provided a better match to the diatom observations. A fresh take on ancient climate change in the North Pacific 2018-07-10T04:00:00Z
Sculptures inspired by insects, orchids, birds and diatoms, as well as the utilitarian constructs from his Tin Man series. Things to Do in Connecticut, Aug. 27 Through Sept. 4 2016-08-25T04:00:00Z
It thus appears that although diatoms and algae are creatures crafted for light, those adapted to live in sand are also formed for making the most of darkness. In a World of Shifting Sand, Algae Turn to Dark Fermentation 2018-02-03T05:00:00Z
The expeditions will conduct research on the biology of diatoms, microscopic algae that are essential to the ocean’s role in regulating global climate. Female scientists from URI to lead expeditions to Antarctica 2016-09-02T04:00:00Z
The chalk-like powder is made from the fossilized remains of the diatom, a single-celled organism. Organic farms tailor setups, employ predator species 2016-06-29T04:00:00Z
Care was taken to use leaf-meristem tissue harvested from the inner layer of basal shoots to minimize bacterial/diatom contamination. The genome of the seagrass Zostera marina reveals angiosperm adaptation to the sea : Nature : Nature Publishing Group 2016-01-26T05:00:00Z
Shellfish and other prey species eat the diatoms, and then sea lions and other predators eat the shellfish. Toxic Algae Causing Brain Damage, Memory Loss in Sea Lions 2015-12-14T05:00:00Z
No. However, some algae and diatoms can retain them for use when the prevailing biochemical winds shift, i.e., oxygen returns. In a World of Shifting Sand, Algae Turn to Dark Fermentation 2018-02-03T05:00:00Z
Red tides are produced by algae called diatoms. Sea lions exposed to toxic algae fail memory tests 2015-12-14T05:00:00Z
Researchers also say they discovered 200 new species of diatoms, small-celled species of algae that are a major food source for clams, in Barnegat Bay. State, environmentalists differ over health of Barnegat Bay 2015-11-17T05:00:00Z
"One thing we see with warming temperatures is that the types of phytoplankton species are changing from larger ones, like diatoms, to smaller ones which we call picoplankton," he explains. Mysterious Balls of Goo Are Rolling Onto American Beaches 2015-07-22T04:00:00Z
In recent years, blooms of this diatom have been increasing in both frequency and duration. Toxic Algae Causing Brain Damage, Memory Loss in Sea Lions 2015-12-14T05:00:00Z
They discovered that the answer is simple: the diatoms and green algae that live in beach sand ferment their way out of trouble. In a World of Shifting Sand, Algae Turn to Dark Fermentation 2018-02-03T05:00:00Z
His was the false claim several years ago that a Martian meteorite contained diatoms — single-celled plant life. Is There Life On Comet 67P? 2015-07-06T04:00:00Z
Measuring some 200 microns across, it is one of the largest diatoms in the sea. Multitude of Microscopic Wonders Discovered in the World's Oceans [Slide Show] 2015-05-21T04:00:00Z
The simple equation can describe a large number of natural forms—the contours of diatoms, starfish, spiderwebs, shells, snowflakes, crystals. The Galaxy-Sized Video Game 2015-05-11T04:00:00Z
Chandler is studying how pollution impacts diatoms, a type of algae. Glowing Tampons Highlight Sewer Pollution 2015-03-31T04:00:00Z
He spotted the glassy shards of ancient diatom shells—the remains of microscopic phytoplankton that lived here at warmer times in the past, when a shallow sea covered much of West Antarctica. Scientists Drill through 2,400 Feet of Antarctic Ice for Climate Clues 2015-01-16T05:00:00Z
Kemp — who bills himself as a "specialist in diatom microslides and diatom arrangements" on his website — is a maker of diatom arrangements, an art that actually began back in the Victorian era. How a man makes art out of some of the smallest organisms on Earth 2014-09-17T04:00:00Z
The Ohio Environmental Protection Agency said Monday that the sheen that spread on the Muskingum River is a diatom algae bloom. Ohio EPA: Sheen on river is algae 2014-09-16T04:00:00Z
The team engineered the bacterium Escherichia coli to express a gene from a diatom — a single-celled alga — encoding a protein that allowed the molecules to pass through the bacterium's membrane. First life with 'alien' DNA 2014-05-06T04:00:00Z
With the diatom protein supplying a diet of foreign nucleotides, the plasmid was copied and passed on to dividing  cells for nearly a week. First Life with "Alien" DNA Created in Lab 2014-05-07T19:02:00Z
One type of diatom shell that he saw, shaped like a short, segmented worm, is extinct today but lived between 10 million and six million years ago. Scientists Drill through 2,400 Feet of Antarctic Ice for Climate Clues 2015-01-16T05:00:00Z
The second core showed a shift in other diatoms in the second lake around the same time in favor of species that thrive in warming temperatures. Rock Snot Gets a Boost from Climate Change 2014-03-10T14:00:00Z
This group of diatoms, say, is known to thrive in clean, untouched streams whereas this other group tends to live where nitrogen or phosphorus levels are high or where various potentially dangerous chemicals are concentrated. Algae in Glass Cases Could Determine Fracking’s Toll 2014-03-06T12:01:00Z
With the diatom protein supplying a diet of foreign nucleotides, the plasmid was copied and passed on to dividing E. coli cells for nearly a week. First life with 'alien' DNA 2014-05-06T04:00:00Z
The team engineered the bacterium Escherichia coli to express a gene from a diatom — a single-celled alga — encoding a protein that allowed the molecules to pass through the bacterium's membrane. First Life with "Alien" DNA Created in Lab 2014-05-07T19:02:00Z
These algae, known as diatoms, are at the base of the food chain and are an important component of lake ecosystems. Global Warming Finally Reaches the Last Arctic Region 2013-11-07T23:15:00.477Z
Plankton includes diatoms, which are responsible for about one-fifth of the breathable oxygen on Earth. Systems ecology: Biology on the high seas 2013-09-04T17:20:24.237Z
We incubated a natural diatom community from coastal New Zealand waters in a short-term incubation experiment using a factorial matrix of temperature and CO2, and measured effects on community structure. Dot Earth Blog: Papers Find Mixed Impacts on Ocean Species from Rising CO2 2013-08-26T15:51:27Z
These included unicellular algae called diatoms and dinoflagellates, and photosynthetic bacteria known as cyanobacteria. Marine ecology: Welcome to the plastisphere 2013-07-18T15:04:03Z
But at the same time, diatoms — larger algae that are among the most important producers of ocean biomass — suffered. Floating tubes test sea-life sensitivity 2013-06-26T17:20:22.840Z
At that point there was a distinct shift to more diverse assemblages that now include open water diatoms. Global Warming Finally Reaches the Last Arctic Region 2013-11-07T23:15:00.477Z
The slide show below showcases some of the myriad intricate forms of red phytoplankton—a group that includes coccolithophores, dinoflagellates and diatoms—that populate the world’s oceans today. The Strange Beauty of the Sea s Microscopic Plants [Slide Show] 2013-05-15T12:15:00.367Z
Our results support the use of short-term manipulative experiments spanning weeks as proxies to understand the potential effects of global change forcing on diatom community structure over longer timescales such as years. Dot Earth Blog: Papers Find Mixed Impacts on Ocean Species from Rising CO2 2013-08-26T15:51:27Z
The shells of deceased diatoms and some radiolarian skeletons are also made of silicon dioxide. What Lives at the Bottom of the Mariana Trench? More Than You Might Think 2013-04-15T00:15:05.547Z
The different genetic heritages of diatoms, dinoflagellates and cyanobacteria will affect their survival. Could Climate Change Boost Toxic Algal Blooms in the Oceans? 2012-12-21T13:15:00.173Z
These diatom changes are very similar to those we have found in lakes and ponds throughout circumpolar regions in response to rising air temperatures and less ice. Global Warming Finally Reaches the Last Arctic Region 2013-11-07T23:15:00.477Z
Stuffed with all sorts of cyanobacterial filaments, diatoms, and anything else unfortunate enough to find itself in the way. Frontonia: dissecting a ciliate appetite 2012-11-20T14:45:03.977Z
To bury carbon at sea requires promoting particular species in the bloom, such as diatoms—shelled algae. Can Controversial Ocean Iron Fertilization Save Salmon? 2012-10-28T20:20:37.917Z
Around 1,000 years ago, tiny algae called diatoms abruptly began dominating the Black Sea's waters. Green Blog: From Ancient Deforestation, a Delta Is Born 2012-09-14T14:33:06Z
Out of the vast diversity of plankton in the oceans, the worst offenders are a few species of diatoms, dinoflagellates and cyanobacteria, collectively called harmful algae. Could Climate Change Boost Toxic Algal Blooms in the Oceans? 2012-12-21T13:15:00.173Z
This potential is reflected in the diversity of algal species being explored for fuel production, which includes green algae, diatoms and cyanobacteria. Exploiting diversity and synthetic biology for the production of algal biofuels 2012-08-15T17:22:27.080Z
They keep rivers clean by grazing on diatoms and algae, and they serve as food sources for fish and crayfish. Rumors of the Oblong Rocksnail's Demise Were Somewhat Exaggerated 2012-08-08T22:15:00.450Z
The diatoms grouped together to form slimy masses, which soon died and began sinking. Green Blog: A Way to Trap Carbon Deep in the Ocean 2012-07-19T11:28:05Z
The eddy chosen for that experiment lacked enough silicon to prompt these particular diatoms to grow. Controversial Spewed Iron Experiment Succeeds as Carbon Sink 2012-07-18T21:45:05.220Z
In fact, this delicate assembly of triangles is a scanning electron micrograph of a diatom. Art of science: extremely small, incredibly close 2012-06-16T23:01:00Z
My earlier work in other parts of Canada had shown how environmental change alters these diatom communities over time. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
The world's lush profusion of photosynthesizers—from towering redwoods to ubiquitous diatoms—owe their existence to a tiny alga eons ago that swallowed a cyanobacteria and turned it into an internal solar power plant. How the First Plant Came to Be 2012-02-16T19:45:18.817Z
Dr. Smetacek suggests that the new results would apply anywhere in the ocean where high levels of silica are present to allow diatoms to bloom. Green Blog: A Way to Trap Carbon Deep in the Ocean 2012-07-19T11:28:05Z
Cut off from most continental dirt and dust, the plankton, diatoms and other life that make up the broad bottom of the food chain there can't get enough iron to grow. Controversial Spewed Iron Experiment Succeeds as Carbon Sink 2012-07-18T21:45:05.220Z
Microbes like bacteria and diatoms live in the sediments that accumulate in the holes. Scientist at Work Blog: Ecological Connectivity as Climate Warms 2012-01-20T16:58:32Z
By knowing which species live in which environments, we can use the past occurrences of diatoms to understand the environmental conditions at the time. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
The diatoms are found everywhere in both fresh and salt water, but the desmids live only in fresh water. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
Protoctists constitute a diverse group that includes our animal ancestors, as well as seaweeds, ciliates, slime molds, foraminifera, diatoms and many others. Did Sex Emerge from Cannibalism? Sex, Death and Kefir, by Lynn Margulis (1938–2011) 2011-11-23T20:15:04.617Z
So many diatoms died, in fact, that they overwhelmed any natural systems for decay and fell in large numbers below 500 meters in depth. Controversial Spewed Iron Experiment Succeeds as Carbon Sink 2012-07-18T21:45:05.220Z
Those diatoms we spoke of just now will only look like minute specks under even the strongest magnifying-glass. Through Magic Glasses and Other Lectures A Sequel to The Fairyland of Science 2011-10-03T02:00:33.003Z
In 1994, we discovered some unexpected changes in the diatom collections of these Arctic ponds. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
This diatom is often found in abundance in the water supplies of cities. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
The food of V. bengalensis consists largely of diatoms, the siliceous shells of which often form the greater part of its excreta. Freshwater Sponges, Hydroids & Polyzoa 2011-06-25T02:00:17.833Z
Fresh diatom cell corpses littered the seafloor as well, and the research team believes that much of the bloom ended at the bottom as a layer of fluff. Controversial Spewed Iron Experiment Succeeds as Carbon Sink 2012-07-18T21:45:05.220Z
Notice the lovely patterns, the delicate tracery, and the fine lines on the diatoms shown there. Through Magic Glasses and Other Lectures A Sequel to The Fairyland of Science 2011-10-03T02:00:33.003Z
But around the mid- to late-nineteenth century, the diatom community changed dramatically: it became more diverse and complex, a sign that the ice cover had declined. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
The desmids resemble the diatoms in the geometrical character of their forms, but they have no shell of silex, and are therefore easily destroyed. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
Although the cysts in the gizzard are frequently accompanied by diatoms, the latter are not invariably present. Freshwater Sponges, Hydroids & Polyzoa 2011-06-25T02:00:17.833Z
At present, scientists have no way to ensure that the desired species of silica-shelled diatoms bloom. Controversial Spewed Iron Experiment Succeeds as Carbon Sink 2012-07-18T21:45:05.220Z
To test that idea directly, Cardinale set up 150 artificial streams and innoculated them with one, two, four, six or eight species of diatoms and green algae. Why Diversity Rules 2011-04-07T14:41:00Z
We began by studying the fossils of diatoms, miniscule jewel-like algae found in almost every pond and lake. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
Naturalists formerly placed both diatoms and desmids in the animal kingdom, but now all agree that the desmids are plants, while some few still maintain that the diatoms are animals. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
The sediments contain alternating band-like laminae of two types, representing diatom growth conditions in the Arctic spring and summer, respectively. Arctic Climate Variation Under Ancient Greenhouse Conditions 2011-02-15T17:24:00Z
The creature contained a number of spherical food spaces with sienna colored contents, a large diatom filled with endochrome, besides several clear food spaces, a posterior contractile vesicle, and the usual glanular endosarc. The Galaxy Vol. XXIII?March, 1877.?No. 3 2011-01-31T03:00:16.193Z
The sediments contain fossils of plankton, such as diatoms, that suggest a robust ecology of organisms persisting from the start of the Pliocene Warm Period to the present. Bering Sea Was Ice-Free and Full of Life During Last Warm Period 2010-12-14T15:46:00Z
Time capsules: preserved diatoms, a microscopic algae, in sediments divulge data of past environmental changes. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
Like all diatoms, it contains when alive a yellowish brown matter with small globules of oil, which is called endochrome. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
By analysing the characteristics of the diatom laminae and measuring their thickness they were able to reconstruct climate-driven variation in ocean conditions both between years and over decades. Arctic Climate Variation Under Ancient Greenhouse Conditions 2011-02-15T17:24:00Z
"That is a good sign because it is the diatoms that the clams feed on," Ayres said. Reporters first trip in eons to the coast reveals a bounty of razor clams 2010-04-30T23:49:00Z
Schopf and colleagues said they found the remnants of plankton, diatoms and cyanobacteria in gypsum deposits made when the Mediterranean dried up 6 million years ago. NASA may stretch out Mars missions to save money 2010-04-28T19:48:00Z
Each diatom species requires a specific set of environmental conditions to survive and reproduce. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
Some of the diatoms, especially those shaped like a boat, called Navicula, have a peculiar motion which at one time led observers to think them animals. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
Experiments suggest the neurotoxin binds with iron and then is reabsorbed only by Pseudonitzschia, a technique that helps these diatoms outcompete other plankton for the metal. Plan to Combat Global Warming Could Backfire 2010-03-16T14:22:00Z
Charles G. Trick of the University of Western Ontario and colleagues studied several species of diatoms of the genus Pseudonitzschia. Observatory: In Climate Change Fight, Iron Enrichment at Sea Could Be Toxic 2010-03-15T20:10:00Z
They vary in size from the microscopic diatoms to forms whose stems resemble those of forest trees, and whose fronds rival the leaves of the palm. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide
For most of that time, the same three or four diatom species had dominated the pond. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z
A great variety of forms are found, both diatoms and desmids, many still undescribed, inviting the young microscopist to study and name them. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
He discovered in the material submitted to him three new genera of diatoms, 225 new species and some thirty varieties. The Popes and Science The History of the Papal Relations to Science During the Middle Ages and Down to Our Own Time
From this the skeletons of radiolaria and diatoms and the spicules of sponges are formed. The Geological Story of the Isle of Wight
These cilia pass on any diatoms and other minute organism which come within their range of action to the capacious oval mouth, which appears as a mere deepening of the gutter in the middle line. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John"
Some animals may have yellowish or mustard coloration, primarily on the belly, the result of the accumulation of diatoms during long stays in the cooler waters to the north. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification
He turns himself outside in, and makes a temporary stomach, and proceeds to digest the soft parts of the diatom. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
There is little doubt that the movements are connected with the raphe, and in some diatoms there is much evidence to prove that they are due to an exudation of mucilage. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus"
Other strata of rocks are made up of the skeletons of diatoms. Under the Maples
The food passes into these lobes, which may be found crowded with diatoms, and without doubt a large part of the digestion is carried on inside the liver. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John"
I am now busied with the diatoms and algæ of all kinds that grow on the ice in the uppermost fresh stratum of the sea. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Vol. I
The box or shell, called pustule, is of silex or quartz, and is therefore almost indestructible; and when the diatom dies, sinks to the bottom of the water. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z
When the diatoms have settled in the bottom of the jar, the supernatant fluid is carefully removed by a syringe or some similar instrument, so that the sediment be not disturbed. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus"
The spiral appearance has never been called in question, only the structure from whence it arises, and this, like the striæ of diatoms, is very much an open question. Fungi: Their Nature and Uses
Both diatoms and desmids may cohere together, forming more complex masses; but another creature allied to Protococcus is noted for its mode of cohesion. The Contemporary Review, Volume 36, September 1879
These brown spots were the above-mentioned algæ and diatoms. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Vol. I
Large groups of the simpler plants, as you may observe in the diatoms from any stagnant pool, are no less actively locomotive than the minute creatures classed as animals seen along with them. Essays: Scientific, Political, & Speculative, Vol. I
Many diatoms possess thickenings of the cell-wall, visible in the valve view, in the centre of the valve and at each extremity. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus"
I heard two learned men talking about diatoms, as they sailed to Labrador; and I listened. Aunt Jo's Scrap-Bag VI An Old-Fashioned Thanksgiving, Etc.
The limestones contain Globigerina and other Foraminifera, the siliceous beds are made of Radiolaria, sponge spicules and diatoms, while the red clay closely resembles the red clay of the deepest parts of the oceans. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon"
Went on excursion with Blessing in the forenoon to collect specimens of the brown snow and ice, and gather seaweed and diatoms in the water. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Vol. I
Algal spores took hold, desmids and diatoms swam in and settled down, little fish wandered in and out of the crevices, while large ones nosed at the entrances. Edge of the Jungle
The characteristic brown colour of diatoms is due to the presence of chromatophores embedded in the lining layer of protoplasm. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus"
I thought that would silence them; but they just turned round, and informed me that my diatoms were plants, not animals,—so my story was all humbug. Aunt Jo's Scrap-Bag VI An Old-Fashioned Thanksgiving, Etc.
“The little things,” he continued, delicately perforating the atmosphere as though selecting a diatom. Iole
The water on the surface was entirely fresh, and the masses of diatoms sank in it, but floated on reaching the salt-water below. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Vol. I
For I supposed that the specks consisted of diatom ooze. The Voyage of the Vega round Asia and Europe, Volume I and Volume II
Over 10,000 species of diatoms have been described, and about 1200 species and numerous varieties occur in the fresh waters and on the coasts of Great Britain and Ireland. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus"
Samples collected from a rain at Genoa—samples of sand forwarded from the Sahara—"absolute agreement" some writers said: same color, same particles of quartz, even the same shells of diatoms mixed in. The Book of the Damned
“The little things,” he continued, delicately perforating the atmosphere as though selecting a diatom. Iole
It was evident that these accumulations of diatoms and alga remained floating exactly at the depth where the upper stratum of fresh water rests on the sea-water. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Vol. I
Among the forms which you will find are the silicious skeletons of diatoms, the calcareous skeletons of foraminifera, scales of fish, and, rarely, the whole skeleton of a fish. The Western United States A Geographical Reader
It was found to be full of diatoms, which are flinty-shelled microscopic animals of every variety of shape, such as stars, crosses, semicircles, and spirals—yet soft as are the jelly-fish, they can consume them. My First Voyage to Southern Seas
No, my boy," was the reply, "on plants called diatoms. The Boy With the U. S. Fisheries
Most of the diatoms show movements, swimming slowly or gliding over solid substances; but like the movements of Oscillaria and the desmids, the movements are not satisfactorily understood, although several explanations have been offered. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
The protoplasm becomes massed outside of the mouth-opening and from here a dense network of pseudopodia forms a trap for diatoms and smaller Protozoa. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901
These diatoms are, to me at least, the most perplexing things in the universe. Certain Personal Matters
This goes on very rapidly, and in this plant each new cell separates as it is formed, and the free diatoms move about quite actively in the water. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky
Among the porous substances used is kieselguhr, a silicious earth which consists chiefly of the skeletons of various species of diatoms. Nitro-Explosives: A Practical Treatise
The diatoms, which are placed in this class simply on account of the color, are probably not closely related to the other brown algæ, but just where they should be placed is difficult to say. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
Food consists of foreign objects, diatoms, other protozoa and the like. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901
It may be he will still, with the utmost nonchalance, be pushing out his pseudopodia, and ingesting diatoms when the fretful transitory life of humanity has passed altogether from the earth. Certain Personal Matters
Again, there is a kind of rock called Mountain Meal, which is entirely made up of the remains of diatoms. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky
I am told that in parts of California infinitesimal diatoms form deposits five thousand feet in thickness. A Backward Glance at Eighty Recollections & comment
Transparent objects, particularly crystals which will not polarize, diatoms, infusoria, palates of mollusks, etc., can not only be seen to greater advantage, but their parts can be more easily studied. Scientific American Supplement, No. 514, November 7, 1885
These diatoms mostly consist of three or four well-known species. Scott's Last Expedition Volume I
The little spindle-shaped things in the centre are diatoms and may be disregarded since they are probably vegetable rather than animal. The Poison Belt
The diatoms have each one a tiny shell or shield, not made of lime like the rhizopod-shells, but of flint. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky
The descending shells of the diatoms like a subaqueous snow gradually buried the larger dejections. Castles and Cave Dwellings of Europe
Stirred up the littoral margins of the ditch with stick found in the path, and the drip showed Gemiasma rubra and verdans mixed in with dirt, debris, other algae, fungi, infusoria, especially diatoms. Scientific American Supplement, No. 384, May 12, 1883
A tow-net is filled with diatoms in a very short space of time, showing that the floating plant life is many times richer than that of temperate or tropic seas. Scott's Last Expedition Volume I
The food of the Ascidia also consists of tiny organisms, infusoria, diatoms, parts of decomposed marine plants and animals; etc. The Evolution of Man — Volume 2
Clodd tells us that one cubic inch of rotten stone contains 41 thousand million vegetable skeletons of diatoms. God and my Neighbour
Among these were diatoms, algae, protozoa, rotifera, and bacteria. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914
The Diatoms are so called from their faculty of multiplying themselves indefinitely by splitting into two; and so rapidly is this process performed, that in a month a single diatom may produce a thousand millions. Wonders of Creation
In the killer whale may be found a seal, in the seal a fish, in the fish a smaller fish, in the smaller fish a copepod, and in the copepod a diatom. Scott's Last Expedition Volume I
The water became thick with diatoms at 9 a.m., and I ordered a cast to be made. South: the story of Shackleton's 1914-1917 expedition
These two varieties of oysters no doubt consume other forms of food, but living diatoms constitute by far the greatest part. The Art of Living in Australia ; together with three hundred Australian cookery recipes and accessory kitchen information by Mrs. H. Wicken
The vegetable kingdom is represented by plants of low organization such as mosses, lichens, diatoms and algae. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914
The diatoms cannot multiply without light, and the ice formed since February can be distinguished in the pressure-ridges by its clear blue colour. South: the story of Shackleton's 1914-1917 expedition
If this be regular feeding throughout, the diatom or vegetable is essentially the base of all. Scott's Last Expedition Volume I
Clark finds that with returning daylight the diatoms are again appearing. South: the story of Shackleton's 1914-1917 expedition
Large numbers of bergs, mostly tabular in form, lay to the west of the islands, and we noticed that many of them were yellow with diatoms. South: the story of Shackleton's 1914-1917 expedition
Here and there appeared the ochreous-yellow colour of adhering films of diatoms. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914
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