Sentences with phrase «species of algae»

The best results were obtained using native species of algae that naturally took over in the ponds (as opposed to using laboratory cultures).

The Boulder Patch off Prudhoe Bay on the North Slope of the high Arctic with cobbles and boulders that support many species of algae and invertebrates unknown from the surrounding soft - bottom areas [261].

Some species of algae produce dangerous toxins for both sea life as well as humans.

It is produced when a certain species of algae dries up.

Boyden and his colleagues pinpointed a gene for a channel in a species of algae and inserted it into viruses.

Because the flue gas and water enter the bioreactor at a toasty 55 degrees Celsius, Bayless needed a hardy species of algae.

Some of these biomarkers are produced by certain species of algae, among which one group can only be found in open surface water, while the members of another group only live in sea ice (or did so in the Earth's distant past).

A new species of algae has been discovered in reef corals of the Persian (Arabian) Gulf where it helps corals to survive seawater temperatures of up to 36 degrees Celsius — temperatures that would kill corals elsewhere.

The team then used standard methods to date the layers and identify the species of algae and invertebrates, such as water fleas and midges, that inhabited the cold Arctic lakes.

In the lab, the team mixed each strain of K. veneficum with a species of algae on which it preys, and recorded the three - dimensional motions of thousands of cells using a high - speed holographic microscopy technique they described in 20071.

But many species of these algae are highly sensitive to temperature, and are unable to survive as ocean waters warm.

After the snow cover melts for the season, other species of alga take over.

But intensive DNA sequencing of four species of this alga did not turn up any plastid; nor did the alga's main genome have any of the genes typically needed to keep a plastid genome running smoothly.

Not exact matches

It is a proprietary extract of the blue - green algae Arthrospira platensis (the green species of spirulina is called Arthrospira maxima).

This month, he released his first book, The Death and Life of the Great Lakes, an in - depth biography of the lakes — from the opening of the St. Lawrence Seaway to the current issues with harmful algae blooms and invasive species.

Scientists from Oregon State University's Hatfield Marine Science Center confirmed the presence of dozens of species native to Japanese coastal waters — including barnacles, starfish, urchins, anemones, amphipods, worms, mussels, limpets, snails, solitary tunicates and algae — that were on a large floating dock in Japan that washed ashore at Agate Beach near Newport, Oregon in June 2012.

Previously, many water managers in the region had believed that the algae blooms of the diatom Didymosphenia geminata — which resemble blobs of wet toilet paper or shag rugs — resulted from an invasive species problem starting in the mid-2000s that could be fixed by regular washing of fishing gear and other sanitation measures.

Fish such as sardines and anchovies eat algae, some species of which contain the toxin domoic acid.

The nearly 400 creatures pictured here include roughly 200 species of fish, crabs, worms, shrimp, algae, snails and other marine invertebrates.

Many marine biologists think of the world's biggest alga as the keystone species of its ecosystem, not only in terms of its structure — a huge forestlike environment under the sea — but also in terms of its tremendous productivity in supplying food for the near - shore ecosystem.

An alga species that grows on glaciers gives the snow a crimson hue, which increases the amount of sunlight that the snow soaks up and makes it melt faster, new measurements confirm.

Certain species of bacteria and algae have genes that allow them to transform light into electrical energy.

They created 2 - meter - long study plots with adjacent areas of two types of algae: ecosystem - supporting miniforests of greenish brown Cystoseira amentacea and turflike species that nurture far less biodiversity.

Where these outflows are the most voluminous, coral reef has largely been overtaken by green algae, which has destroyed habitat for an untold number of marine species.

Although many dinoflagellates can survive through photosynthesis alone, some species are able to grow twice as fast by preying on other algae — and it is this feeding mechanism that is now thought to be aided by the production of toxins.

Related sites Review of Killer Algae in Science Caulerpa taxifolia's Mediterranean invasion U.S. Aquatic Nuisance Species Task Force

For example, the scientists write that disturbed coral reefs can be replaced by a group of species dominated by algae.

Deep, swift - flowing waters seem to work best, tempting the target fish species while keeping the rocks free of silt, algae and mussels.

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.

Quagga and zebra mussels shun toxin - producing Microcystis cyanobacteria and feed instead on other species of phytoplankton at the base of the lake's food chain, including algae.

The «space station» is a primitive diatom of the species Stephanodiscus, and the «shuttle craft» are scales from algal cysts, dormant forms of algae.

The researchers found many types of marine bacteria, including symbiotic species that may help the fish digest algae.

Herron and his colleagues scanned the genomes of about 45 species of green algae to see how the position of certain genes might have shifted as the organisms grew more complex.

Solix's Willson pored over papers from the National Renewable Energies Laboratory, which had tested 3,000 of 500,000 algae species before abandoning what he considered promising research.

For example, at some subarctic lakes, the number of planktonic algae increased 25 %, while some high - Arctic sites showed a whopping 100 % change in species composition.

After filling each with 800 liters of pond water, they added two species of snails that spread the schistosomiasis parasite, algae for the snails to eat, and two kinds of predators — crayfish and water bugs.

The researchers, including postgraduate students Miaolin Chen at Shanghai Jiao Tong University and Deborah Devis at the University of Adelaide's Waite campus, performed a genome - wide analysis of potential pollen allergens in two model plants, Arabidopsis thaliana (thale cress) and rice by comparing those results among 25 species of plants ranging from simple alga to complex flowering plants.

«We can confirm that this new type of alga is indeed the year - round prevalent symbiont across several dominant coral species from the Abu Dhabi coast of the United Arab Emirates,» he adds.

Reefs are made up of many coral species, most of which live in a mutually beneficial relationship with microscopically small algae hosted in their tissue.

Adult corals of the species Pocillopora damicornis get most of their nutrition from symbiotic algae that live inside them, providing metabolic energy by photosynthesis.

In recent years, an algae - filled plankton species has been changing the ecology of these waters.

In a new study recently published in the journal Global Biogeochemical Cycles, scientists of Kiel University (CAU) with colleagues from GEOMAR Helmholtz Centre for Ocean Research Kiel and international partners from the USA, New Zealand, and Great Britain studied marine benthic shell - forming organisms around the world in relation to the chemical conditions they currently experience — with a surprising result: 24 percent, almost a quarter of the analyzed species, including sea urchins, sea stars, coralline algae or snails, already live in seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturation).

Some of the colors of both species come from symbiotic algae that live inside the coral animal's cells.

Schnetzer and colleagues created their own toxic algal bloom in the lab using P. australis algae, one of the most toxic Pseudo-nitzschia species and one that blooms along the U.S. West Coast.

New research suggests this type of algae — called Didymosphenia geminate, or didymo — is a native species, but the environmental conditions that trigger its visible growth in rivers were previously rare or absent.

The research showed that diplonemids are a diverse group of species of many different shapes and sizes, and that they hunt both bacteria and larger algae.

The ocean floor is richly abundant in tiny fossils of the calcified algae species Emiliania huxleyi.

Warming oceans can cause stress in coral, leading them to expel the partner algae species they depend on for some of their food.

Even if the OMEGA bags leak, the salty ocean water would kill the algae, preventing the escape of an invasive species.

«Where mussels were one of the most abundant and iconic species, now barnacles and algae dominate.