Sentences with word «coccolithophorid»

These scanning electron microscope images of coccolithophorids were all taken by Markus Geisen of the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, Germany.

Geisen is one of dozens of European scientists who recently completed an extensive investigation, called CODENET, of the biology and the ecological relationships of several coccolithophorid species.

Acidifying the ocean is particularly detrimental to organisms that secrete shell material made of CaCO3, such as coral reefs and a type of phytoplankton called coccolithophorids [Kleypas et al., 1999].

Other coccolithophorids, like Calcidiscus quadriperforatus (top center), also have discuslike plates, but coccoliths can take many forms.

In the late 1980s, scientists on both sides of the Atlantic began large - scale, multidisciplinary studies that started with Emiliania huxleyi and expanded to include the global, long - term dynamics among coccolithophorids, dinoflagellates, and diatoms.

Decreases in atmospheric CO2 are associated with reductions in populations of CO2 producing coccolithophorids along with increasing populations of diatoms that pumped CO2 to depth.

In contrast CO2 emitting coccolithophorid populations and their chalk deposits dwindled.

They are the most common of coccolithophorids, single - celled plants with overlapping plates called coccoliths, which are apparently used for protection.

Some coccolithophorids may develop symbiotic relationships with diatoms.

The exterior of the coccolithophorid at right, a Syracolithus quadriperforatus, is made of calcium carbonate, the stuff of chalk.

Scanning electron microscope (SEM) images of the three main groups of large phytoplankton — diatoms, dinoflagellates, and coccolithophorids (those with coccolith shells)-- show that they can be arrestingly beautiful.

Coccolithophorids and dinoflagellates are largely marine plants, meaning they live in salt water.

The largest can be divided into three groups: coccolithophorids, diatoms, and dinoflagellates.

This coccolithophorid, an Algirosphaera robusta, was harvested from the Alborán Sea in the western Mediterranean.

Maybe some coccolithophorid species are different but if they are why?

Tiny coccolithophorids form vast populations She is particularly concerned about the effects of acidification on plankton at the bottom of the fisheries food chain called coccolithophorids.

Quite likely, high CO2 concentrations did not produce detrimental acidification, and were the result of coccolithophorids and foraminifera pumping CO2 to the surface.

Those chalk deposits were the result of sinking plankton that produced calcium carbonate shells like foraminifera and coccolithophorids, As discussed in Natural Cycles of Ocean Acidification, the creation of calcium carbonate shells pumps alkalinity to depth but produces CO2 at the surface thus adding to higher concentrations of atmospheric CO2.

Single cell foraminifera and coccolithophorids have some of the thinnest organic layers that effectively prevent dissolution, and the petite sea butterfly has one of the thinnest mollusk periostraca.

Their communications man Dave introduced Pico thusly: «Our wild and crazy Planktos mascot, Pico, is our coccolithophorid sidekick.