Kiel Marine Science

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Life cycle of moon jellyfish depends on the microbiome

Nov 24, 2020

Keimfreie (untere Reihe) und natürliche Epyhren im Vergleich: Die äußere Erscheinung macht deutlich, dass die Quallen ohne natürliches Mikrobiom in ihrer Fitness eingeschränkt sind. © Dr. Nancy Weiland-Bräuer

Research team at Kiel University uses Aurelia aurita as an example to demonstrate the relationship between microbial colonization and reproduction in marine cnidarians

The body tissue of all multicellular living beings is colonized by an unimaginably large number of microorganisms. Host organisms and microbes have developed together from the very beginning of the evolutionary history of multicellular life. The natural microbiome, i.e. the totality of these bacteria, viruses and fungi that live in and on a body, therefore plays a fundamental role in the functioning of the entire organism: it supports, for example, the absorption of nutrients, fends off pathogens and even communicates with the nervous system. A research team from the Institute of General Microbiology (IfAM) at Kiel University headed by Professor Ruth Schmitz-Streit has now investigated the importance of the natural microbiome for the healthy functioning of the organism and reproduction in simple marine organisms using the Aurelia aurita jellyfish. The scientists showed that animals without a natural microbial colonization are affected in their fitness and a decisive transformation process of their reproductive cycle, which runs in several stages, is completely prevented. The researchers recently published their results in the journal mBio in cooperation with colleagues from the GEOMAR Helmholtz Centre for Ocean Research Kiel in the framework of the Collaborative Research Centre (CRC) 1182 "Origin and Function of Metaorganisms". Read More

Deep drilling in Europe's oldest and most species-rich lake provides new insights into evolution

Oct 06, 2020

Der 1,4 Mio. Jahre alte Ohrid-See an der Grenze zwischen Albanien und Nordmazedonien (Foto: Thomas Wilke).

Geophysicists from Kiel University involved in international study on Lake Ohrid

The older and more stable an ecosystem is, the longer lived its species and the more stable the species communities are. An international research team led by the universities of Giessen und Cologne and with with the participation of Kiel University gained these new insights into evolution by drilling deep into the sediments of Lake Ohrid. The 1.4 million year old lake on the border between Albania and Northern Macedonia is not only the oldest lake in Europe, but with more than 300 endemic species, i.e. species that only occur there, it is also the most species-rich. Read More

Future urban development exacerbates coastal exposure in the Mediterranean

Sep 16, 2020

Mediterrane Stadtentwicklung und die Folgen des Meeresspiegelanstiegs

Researchers at Kiel University are developing future urban scenarios with a resolution of 100 meters for ten Mediterranean countries

Urban extent in low-lying coastal areas is increasing faster than in the hinterland, thus leading to increased exposure to sea-level rise and associated hazards. Societies' risk to future coastal flooding will, therefore, not only depend on the physical drivers of change but also on the rate and pattern of urban growth. Researchers at Kiel University (CAU), together with partners from Berlin and Athens, have now developed a new set of spatially explicit projections of urban extent for ten countries in the Mediterranean, with a high spatial and temporal resolution. These future urban projections indicate that accounting for the spatial patterns of urban development can lead to significant differences in the assessment of future coastal urban exposure. Depending on the urban development scenario chosen, the exposure of certain coastal regions can vary by up to 104 percent until 2100. These results have recently been published in the international journal Scientific Reports. Read More

Black box larval physiology of sea urchins

Aug 25, 2020

Dr. Meike Stumpp

DFG funds an Emmy Noether junior research group led by Kiel marine researcher Meike Stumpp

The German Research Foundation (DFG) recently approved the establishment of a new Emmy Noether junior research group at Kiel University (CAU). The marine scientist and future head of the new research group, Dr. Meike Stumpp from the Institute of Zoology at CAU, and her team will investigate the metabolic processes of larvae of marine invertebrate organisms, with particular focus on sea urchin larvae. The research, which is funded by the DFG with around one million euros and two doctoral positions, focuses on improving our understanding of digestive physiology. Read More

New position for Dr. Jörn Schmidt, Center for Ocean and Society, Kiel University

Jun 29, 2020

Neue Position für Dr. Jörn Schmidt, Center for Ocean and Society, Uni Kiel

Dr. Jörn Schmidt, a fisheries biologist and scientist at the Center for Ocean and Society (Kiel Marine Science) at the Kiel University (CAU), will move to the International Council for the Exploration of the Sea (ICES) in Copenhagen on July 1st. ICES is an intergovernmental, marine science organization that acts as an interface between science and policy. More than 6,000 scientists from 20 member countries are active in over 150 working groups. In his new position as Chair of the Science Committee (SCICOM), Schmidt will work with the committee members to coordinate the scientific network and to support the strategic development of the working groups and scientific topics. Until now, Schmidt has been Germany's representative on the Science Committee. Read More

Reduce ship emissions - but how?

May 20, 2020

Schiffsemissionen reduzieren - aber wie?

Transdisciplinary research project investigates effects of shipping

Schiffe sind im internationalen Handel das wichtigste Transportmedium. Forscherinnen und Forscher der Christian-Albrechts-Universität zu Kiel sowie des GEOMAR Helmholtz-Zentrums für Ozeanforschung Kiel untersuchen im Rahmen des transdisziplinären und internationalen Forschungsprojekt ShipTRASE Auswirkungen der globalen Schifffahrt auf den Ozean und die Gesellschaft. Das Projekt nimmt in diesen Tagen seine Arbeit auf.

Ships are the most important means of transport in international trade. Researchers from the Kiel University and the GEOMAR Helmholtz Centre for Ocean Research Kiel are investigating the effects of global shipping on the ocean and society as part of the transdisciplinary and international research project ShipTRASE. The project is currently starting its work.

(Joint press release of the Kiel University and the GEOMAR Helmholtz Centre for Ocean Research Kiel)

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A sensational discovery: Traces of rainforests in West Antarctica

Apr 09, 2020

Sensationsfund: Spuren eines Regenwaldes in der Westantarktis

Climate History: New study led by AWI and in cooperation with Kiel University provides unexpected evidence for exceptionally warm climate near the South Pole during the Cretaceous
An international team of researchers led by geoscientists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, have now provided a new and unprecedented perspective on the climate history of Antarctica. In a sediment core collected in the Amundsen Sea, West Antarctica, in February 2017, the team discovered pristinely preserved forest soil from the Cretaceous, including a wealth of plant pollen and spores and a dense network of roots. These plant remains confirm that, roughly 90 million years ago, the coast of West Antarctica was home to temperate, swampy rainforests where the annual mean temperature was ca. 12 degrees Celsius – an exceptionally warm climate for a location near the South Pole. The researchers surmise that this warmth was only possible because there was no Antarctic ice sheet and because the atmospheric carbon dioxide concentration was significantly higher than indicated by climate models to date. The study, which provides the southernmost directly assessable climate and environmental data from the Cretaceous and poses new challenges for climate modellers around the globe, was released today in the journal NATURE.
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