A third group of diatoms, the araphid pennates, are detected in the fossil record from this period (Fig. 3). Figure 4: The effect of iron fertilization on diatoms. It is important to know how ...

Our diatom research is focused on the pursuit of comparative biology: the systematics, evolution and biogeography of freshwater diatoms. The research covers both extinct and extant taxa, and utilises ...

Diatoms are tiny, single-celled alga with cell walls made of silica—plankton are a well-known example. They typically live at or near ocean surfaces, though they have also been found to sink lower.

Diatoms are classified as a major group of algae. The most common types of diatoms are phytoplankton. They are single-celled, but they have been observed to form colonies in ribbon, filaments ...

Genetic switch lets marine diatoms do less work at higher carbon dioxide Date: June 15, 2015 Source: University of Washington Summary: Rising carbon dioxide lets diatoms return to their ...

Diatoms — tiny phytoplankton that are responsible for a fifth of all energy converted into matter by plants — may have become important much earlier in the development of Earth’s ocean ecosystems and ...

Decline of diatoms due to ocean acidification Study shows unexpected negative impact by CO2 on important plankton group Date: May 25, 2022 Source: Helmholtz Centre for Ocean Research Kiel (GEOMAR ...

Ocean acidification doesn’t just erode calcium carbonate shells. It can also slow the rate at which tiny algae called diatoms build their beautiful, intricate silica cell walls. Thinner walls ...