Coccolith morphology is shown as acidification and warming increases in the culture experiment. Two new studies recently published in Limnology & Oceanography and Biogeosciences report that ocean warming may exacerbate the impacts of ocean acidification on calcareous phytoplankton, and its evolutionary success and physiological performance will be hampered.

A new study has found that neither gay men nor heterosexual people with HIV transmit the virus to their partner, provided they are on suppressive antiretroviral treatment.

Algae that live in and under the sea ice play a much greater role for the Arctic food web than previously assumed. In a new study, biologists of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) showed that not only animals that live directly under the ice thrive on carbon produced by so-called ice algae. Even species that mostly live at greater depth depend to a large extent on carbon from these algae. This also means that the decline of the Arctic sea ice may have far-reaching consequences for the entire food web of the Arctic Ocean. Their results have been published online now in the journal Limnology & Oceanography.