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New peer-reviewed papers

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Jul 10, 2014 3:28 AM
Time of emergence of trends in ocean biogeochemistry (update)
For the detection of climate change, not only the magnitude of a trend signal is of significance. An essential issue is the time period required by the trend to be detectable in the first place. An illustrative measure for this is time of emergence (ToE), that is, the point in time when a signal finally […]

Jul 8, 2014 5:06 AM
Studying the effect of CO2-induced acidification on sediment toxicity using acute amphipod toxicity test
Carbon capture and storage is increasingly being considered one of the most efficient approaches to mitigate the increase of CO2 in the atmosphere associated with anthropogenic emissions. However, the environmental effects of potential CO2 leaks remain largely unknown. The amphipod Ampelisca brevicornis was exposed to environmental sediments collected in different areas of the Gulf of […]

Jul 8, 2014 4:35 AM
The role of temperature in determining species’ vulnerability to ocean acidification: A case study using mytilus galloprovincialis
Ocean acidification (OA) is occurring across a backdrop of concurrent environmental changes that may in turn influence species’ responses to OA. Temperature affects many fundamental biological processes and governs key reactions in the seawater carbonate system. It therefore has the potential to offset or exacerbate the effects of OA. While initial studies have examined the […]

Jul 7, 2014 3:43 AM
Reminder: Scientists, help share information and collaborate on ocean acidification research!
Would you like to know about on-going and planned ocean acidification research activities? Would you like to promote others to work with you? If so, please read on… A database of ocean acidification research will be developed by the Ocean Acidification International Coordination Centre (OA-ICC; iaea.org/ocean-acidification), an IAEA project. The goal is to provide an […]

Jul 7, 2014 3:39 AM
Reminder: Scientists, contribute to the OA-ICC data compilation on the biological response to ocean acidification!
Numerous papers report the effects of ocean acidification on marine organisms and communities, but it has been difficult to compare the results since the carbonate chemistry and ancillary data are often reported in different units and scales, and calculated using different sets of constants. In response to this problem, a data compilation on the biological […]

Jul 3, 2014 11:04 AM
High-magnesium calcite dissolution in tropical continental shelf sediments controlled by ocean acidification
Increases in atmospheric CO2 cause the oceanic surface water to continuously acidify, which has multiple and profound impacts on coastal and continental shelf environments. Here we present the carbonate mineral composition in surface sediments from a range of continental shelf seabed environments and their current and predicted stability under ocean acidifying conditions. Samples come from […]

Jul 3, 2014 10:47 AM
Organ damage in Atlantic herring larvae as a result of ocean acidification
The dissolution of anthropogenically emitted excess carbon dioxide lowers the pH of the world’s ocean water. The larvae of mass spawning marine fishes may be particularly vulnerable to such ocean acidification (OA), yet the generality of earlier results is unclear. Here we show the detrimental effects of OA on the development of a commercially important […]

Jul 3, 2014 10:32 AM
In-situ pH measurement and real-time calibration
The vast biogeochemical processes in the ocean operate on temporal and spatial scales, from seconds near hydrothermal-seawater mixing zones at midocean ridges to years for water masses of different density in the ocean as a whole. In-situ chemical sensors that can be applied to this dynamic ocean system represent an alternative strategy to direct measurement […]

Jul 3, 2014 10:07 AM
Atlantic and Polar cod under stress (video)
Scientists from the Alfred Wegener Institute are heading to the Arctic. They want to find out, how increasing temperatures and ocean acidification alter life in the High North – especially how fish will react to climate change. In the waters off Svalbard the biologists therefore fish for two specific species: the Atlantic cod and the […]

Jul 3, 2014 9:58 AM
Traces of the past (video)
In the depths of the ocean the history of our planet is stored. Creatures from long ago have sunken to the sea floor and today their fossils reveal traces of past events of climate change and mass extinction. AWI biogeochemist Prof. Dr. Jelle Bijma and his colleagues study this archive on the sea floor. With […]