Seaweed and seagrasses

When a coralline alga was exposed to both ocean acidification and solar UV radiation, its growth, photosynthesis, and calcification rates were greatly reduced, compared to when it was exposed [...]

A coralline alga had reduced calcification in ocean acidification conditions. (Laboratory study)

When they were exposed to air at low tide, photosynthesis by three species of intertidal seaweeds was not saturated at present-day levels of atmospheric carbon dioxide (CO2). They may benefit, [...]

When exposed to ocean acidification conditions (pH 7.7) for 80 days, coralline algae survived by increasing their calcification rates. However, those algae for which the pH had been dropped [...]

Weekly growth rate of a cold-water seaweed (Porphyra linearis) averaged 53% in regular air and 28% in CO2-enriched air. (Laboratory study)

Higher levels of carbon dioxide (CO2) enhanced growth of a green seaweed (Ulva rigida). (Laboratory study)

A non-bicarbonate using red seaweed grew more rapidly with increasing carbon dioxide. (Laboratory study)

Exposure of juvenile green seaweed to ocean acidification conditions for 80 days affected their ability to photosynthesize. (Laboratory study)

Four species of intertidal brown seaweeds increased their uptake of carbon dioxide (CO2) as ambient CO2 concentration increased, while one other species did not. The amount of increased CO2 [...]

Intracellular concentration of DMSP remained unaffected in two macroalgae species (Ulva lactuca and U. clathrata) under ocean acidification conditions, but significant differences in [...]