BIOACID

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Mesocosms in Svalbard
For field experiments on the effects of ocean acidification, researchers from the BIOACID project use the KOSMOS mesocosms - as here in Svalbard.

BIOACID (English Biological Impacts of Ocean Acidification , German biological impacts of ocean acidification ), the German Research Network on ocean acidification .

20 German research institutions are cooperating in the project, which is coordinated by Ulf Riebesell from the Helmholtz Center for Ocean Research Kiel (GEOMAR) and Hans-Otto Pörtner from the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research. As one of the world's largest national research programs on ocean acidification, BIOACID helps to quantify the influence of ocean acidification on marine organisms and their habitats, to elucidate the underlying mechanisms, to assess the potential for adaptation through evolution and to determine how the effects observed by others Environmental changes are modified.

BIOACID is funded by the Federal Ministry of Education and Research .

For near-natural experiments, members of the BIOACID project developed the KOSMOS mesocosms (KOSMOS English Kiel Off-Shore Mesocosms for Ocean Simulations, German Kiel mesocosms for ocean simulations ) and the KOB benthocosms (KOB English Kiel Outdoor Benthocosms, German Kiel outdoor benthocosms). Laboratory studies are devoted to the cold-water coral Lophelia pertusa , the calcareous alga Emiliania huxleyi and economically important fish species such as the North Atlantic cod Gadus morhua .

Project phases

BIOACID I: September 2009 to August 2012

In the first project phase BIOACID I, five subject areas were defined. These deal with processes from the basis of the food chain to ecosystems and from the subcellular level to the entire organism. Due to the sensitivity in relation to ocean acidification, calcification and carbonate dissolution processes were combined in a separate subject area. Accordingly, the scientific program of BIOACID I was structured as follows:

theme title
Topic 1 Primary production , microbial processes and biogeochemical feedback
Topic 2 Performance characteristics: reproduction , growth and behavior of animal species
Topic 3 Calcification: sensitivities of strains and ecosystems
Topic 4 Interactions of species and structures of communities in a changing ocean
Topic 5 Integrating assessment: sensitivities and uncertainties

BIOACID II: September 2012 to September 2015

A restructuring took place for BIOACID II, resulting in five consortia. The aim of BIOACID II was to gain a better understanding of biological mechanisms, reactions of organisms to ocean acidification and their biological and economic effects.

consortium title
Consortium 1 Pelagic ecosystems under ocean acidification: ecological, biogeochemical and evolutionary reactions
Consortium 2 Response of benthic communities to interactive stress
Consortium 3 Natural CO2 -rich reefs as a window into the future: Acclimatization of marine life to long-term ocean acidification and consequences for biogeochemical cycles
Consortium 4 Effects of ocean acidification in a warming climate on interactions between species at the boundaries of distribution: mechanisms and consequences at the ecosystem level
Consortium 5 Services of the oceans

BIOACID III: October 2015 to November 2017

The overarching goals of the final phase of BIOACID have not changed. In this project phase, too, the focus is on the holistic assessment of the observed biological reactions to multiple influencing factors. The aim is to clarify which mechanisms underlie the observed sensitivities, at the level of organisms, populations, communities and ecosystems through to ecosystem services. In order to achieve these goals, the previous consortia will be brought together in three subject areas. The integrated assessment, to which all three areas contribute, is new. It carries out risk assessments as well as the development of future scenarios, management options and policy advice.

theme title
Topic 1 Pelagic ecosystems and biogeochemistry
Topic 2 Change of structure and function in benthic ecosystems
Topic 3 Effects of ocean acidification and warming on natural and human communities: mechanisms, vulnerabilities and societal adaptation

Web links

Individual evidence

  1. ↑ http://www.fona.de/ - Topics - Marine and Polar Research - PDF ocean acidification, May 2016. Accessed on March 16, 2017.
  2. ↑ http://www.deutsches-klima-konsortium.de/ German Climate Consortium: "Ocean acidification - the other CO2 problem", October 29, 2015. Accessed March 16, 2017.
  3. ↑ http://www.geomar.de/ GEOMAR “German research project on ocean acidification on the home straight”, October 5, 2015. Accessed March 16, 2017.
  4. ↑ e360.yale.edu Peter Friederici: “A Key Experiment to Probe the Future of Our Acidifying Oceans”, May 2, 2013. Accessed March 16, 2017.
  5. ↑ www.zeit.de Urs Willmann: "Grace in Danger", December 13, 2012. Accessed March 16, 2017.
  6. ^ KOSMOS - Kiel Off-Shore Mesocosms for Oceanographic Studies. GEOMAR - Helmholtz Center for Ocean Research Kiel, accessed on March 21, 2017 .
  7. ↑ Benthos Ecology. GEOMAR - Helmholtz Center for Ocean Research Kiel, accessed on March 21, 2017 .
  8. ↑ Cold water corals as adaptive artists? GEOMAR - Helmholtz Center for Ocean Research Kiel, February 9, 2012, accessed on March 21, 2017 .
  9. ↑ Ocean Acidification - The Limits to Adaptation. GEOMAR - Helmholtz Center for Ocean Research Kiel, July 11, 2016, accessed on March 21, 2017 .
  10. ↑ Even more stress for the cod? Marine biologists start a new research project on the effects of climate change on the coveted edible fish - AWI. Retrieved March 21, 2017 .
  11. ↑ Ocean acidification threatens cod offspring in the Atlantic. GEOMAR - Helmholtz Center for Ocean Research Kiel, August 24, 2016, accessed on March 21, 2017 .
  12. ↑ www.bioacid.de BIOACID website “Scientific Program BIOACID I” (Engl.). Accessed March 21, 2017.
  13. ↑ www.bioacid.de BIOACID website “Scientific Program - The Scientific Program of Phase II of BIOACID”. Accessed March 21, 2017.
  14. ↑ www.bioacid.de BIOACID website “Scientific Program - The Scientific Program of Phase III of BIOACID”. Accessed March 21, 2017.