Tags » Prokaryotes

Shifts in the microbial community in the Baltic Sea with increasing CO2

Ocean acidification, due to dissolution of anthropogenically produced carbon dioxide is considered a major threat to marine ecosystems. The Baltic Sea, with extremely low salinity and thus low pH buffering capacity, is likely to experience stronger variation in pH than the open ocean with increasing atmospheric carbon dioxide. 229 more words



What are prokaryotes (“pro-carry-oats”)? They are a type of cell. The other type of cell is a eukaryote (“you-carry-oat”). The difference between the two is that the latter has a nucleus, in which the DNA sits, whereas prokaryotes have no nucleus and their DNA floats around freely. 300 more words

School Essays

Effect of ocean acidification and elevated fCO2 on trace gas production by a Baltic Sea summer phytoplankton community

The Baltic Sea is a unique environment as the largest body of brackish water in the world. Acidification of the surface oceans due to absorption of anthropogenic CO2 emissions is an additional stressor facing the pelagic community of the already challenging Baltic Sea. 356 more words


Effect of pH, salinity and temperature on the growth of six species of cyanobacteria isolated from Arabian Sea coast of Karnataka

Marine cyanobacteria constitute a vast potential resource in various applications such as food, feed, fuel, fertilizer, medicine and in combating pollution. Growth of cyanobacteria cultures are affected by several environmentsl factors. 232 more words


Host-associated coral reef microbes respond to the cumulative pressures of ocean warming and ocean acidification

Key calcifying reef taxa are currently threatened by thermal stress associated with elevated sea surface temperatures (SST) and reduced calcification linked to ocean acidification (OA). Here we undertook an 8 week experimental exposure to near-future climate change conditions and explored the microbiome response of the corals… 189 more words


Production of dissolved organic carbon by Arctic plankton communities: responses to elevated carbon dioxide and the availability of light and nutrients

The extracellular release of dissolved organic carbon (DOC) by phytoplankton is a potentially important source of labile organic carbon for bacterioplankton in pelagic ecosystems. In the context of increasing seawater partial pressure of CO2 (pCO2), via the oceanic absorption of elevated atmospheric CO2 (ocean acidification), several previous studies have reported increases to the relative amount of carbon fixed into particulates, via primary production (PP), and dissolved phases (DOC). 352 more words