Effect of increasing sea water pCO2 on the northern Atlantic krill species Nyctiphanes couchii
Krill from the northern Atlantic Ocean exposed to ocean acidification conditions for 5 weeks had lower survival rates. (Laboratory study)
Impact of CO2- acidified seawater on the extracellular acid-base balance of the northern sea urchin Strongylocentrotus dröebachiensis
Body fluids of the northern sea urchin became acidified when the urchins lived in ocean acidification conditions for 5 weeks. (Laboratory study)
Elevated CO2 levels do not affect the shell structure of the bivalve Arctica islandica from the western Baltic
Shell growth or crystal microstructure of the ocean quahog did not change under different levels of ocean acidification conditions. (Laboratory study)
Acidified seawater impacts sea urchin larvae pH regulatory systems relevant for calcification
Sea urchin larvae were able to maintain the pH inside their cells under ocean acidification conditions. (Laboratory study)
Digestion in sea urchin larvae impaired under ocean acidification
Sea urchin larvae normally have alkaline conditions (pH 9.5) in their stomachs. When larvae were exposed to ocean acidification conditions, the pH of their stomachs decreased. This change could reduce the efficiency of digestion and trigger extra feeding to make up for it.
Resource allocation and extracellular acid-base status in the sea urchin Strongylocentrotus droebachiensis in response to CO2 induced seawater acidification.
Sea urchins living in ocean acidification conditions for 45 days grew less. They were able to actively maintain the pH outside the cells in their bodies. (Laboratory study)
Altered kelp (Laminariales) phlorotannins and growth under elevated carbon dioxide and ultraviolet-B treatments can influence associated intertidal food webs
Two species of brown kelp responded differently to being grown for 55 days under ocean acidification conditions. One grew more, and the other grew less. There were negative indirect effects on black turban snails that fed on the kelp. (Laboratory study)
Effects of elevated temperature and carbon dioxide on the growth and survival of larvae and juveniles of three species of northwest Atlantic bivalves
Ocean acidification conditions and warmer temperatures reduced the survival, development, growth, and lipid synthesis of hard clam and bay scallop larvae. During the juvenile life stages, ocean acidification negatively affected juvenile eastern oysters and bay scallops, but not hard clams. Larvae were substantially more vulnerable to ocean acidication than juveniles ...
Reduced early life growth and survival in a fish in direct response to increased carbon dioxide
Exposure of early life stages of a common estuarine fish (inland silverside) to ocean acidification conditions expected in the world’s oceans later this century reduced survival by 74 percent and growth by 18 percent. The egg stage was significantly more vulnerable than the post-hatch larval stage. These findings challenge the ...
Calcifying invertebrates succeed in a naturally CO2-rich coastal habitat but are threatened by high levels of future acidification
Blue mussels from the Kiel Fjord (Baltic Sea), where seawater pH tends to be low, were able to maintain growth rates when exposed to ocean acidification conditions (pH 7.7). in addition, juvenile mussels in the fjord settle mostly in summer when pH is lowest. The findings suggest that mussels may ...
