Sentences with phrase «diatom species»

New diatom species Diatoms may have other advantages when it comes to oil production.

A new study shows that at least two diatom species make compounds that reduce hatching rates when eaten by tiny shrimplike animals called copepods.

During this cruise we are looking at the diatom species currently living in the surface waters in order to develop our understanding of their habitats.

The aim of my PhD is to use the distribution of diatom species preserved in sediment cores across the Scotia Sea to reconstruct the position of major ocean boundaries and water masses through time.

Not exact matches

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.

To bury carbon at sea requires promoting particular species in the bloom, such as diatoms — shelled algae.

Biologists from the University of Geneva (UNIGE), Switzerland, have succeeded in establishing a water quality index based solely on the DNA sequences of the diatoms present in the samples, without needing to identify each species visually.

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.

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

High - speed video revealed that the fish feed quite differently than other gobies when they scrape diatoms from the rocks, extending their top jaw way out and not pulling the lower jaw back as much as other species do.

At present, scientists have no way to ensure that the desired species of silica - shelled diatoms bloom.

Diatoms are also quite numerous, with the estimated number of species exceeding one million.

Neither are fungi, diatoms, nematodes, tardigrades, slime moulds, algae or most other species on the planet.

The research team found that another competitor diatom, Asterionellopsis glacialis, which frequently co-occurs with Karenia red tides, was partially resistant to red tide, suggesting that co-occurring species may have evolved partial resistance to red tide via robust metabolic pathways.

Psudeo - nitzschia «Pseudo-nitzschia is a marine planktonic diatom genus containing some species capable of producing the neurotoxin domoic acid (DA), which is responsible for the neurological disorder known as amnesic shellfish poisoning (ASP).»

These microfossils accumulate in the lake sediments and due to the fact that different species require different environmental conditions, lots can be learned about the environment at the time the lake sediments were deposited from the diatom fossil assemblage.

To reconstruct the past evolution of the Cosgrove Ice Shelf, Minzoni and her team examined multiple characteristics of the core sediments, including grain size and layering, carbon and nitrogen levels, and species of diatoms and foraminifera.

Once the silicate in the water is used up, the population of diatoms will drop and you will no longer have the same distribution of phytoplankton species.

The predicted continuous warming trend of the ocean surface temperature is expected to favour the growth of smaller phytoplankton cells (picophytoplankton replacing large diatoms) that in turn would also favour small - sized zooplankton species (Li et al. 2009).

In the final paper of this issue, Tatters et al. [66] study the competitiveness of natural diatom communities incubated under future environmental conditions for two weeks, after which the dominant species were isolated and then incubated again for over a year before recombining the now conditioned species to reconstruct the original community.