Humans and Marine Ecosystems

The current and future state of marine ecosystems and biogeochemical cycles is subject to the increasing influence of human activities and human interventions. Prediction, risk assessment and the development of precautionary measures require a comprehensive understanding of the sensitivity of marine species, the ecosystems formed by them and the biogeochemical cycles.

In particular, the following factors need to be taken into account: climate-induced ocean acidification, oxygen depletion, changes in the near-surface mixing of the oceans, excessive nutrient supply (eutrophication), invasive species, spreading of pathogens and parasites, regional and global biodiversity losses and the increasing exploitation of biological resources. Through the application and further development of genetic and genomic methods, the evolutionary-biological reactions of species to anthropogenic disturbances are of increasing interest.

Further scientific information can be found on the pages of the Research Division 2: Marine Biogeochemisty and Research Division 3: Marine Ecology.

News for research topic "Humans and Marine Ecosystems"

Glass sponges (Hexactinellida) are mainly found in the deep sea. The glass sponge Vazella pourtalesi (colloquially "Russian hat") is found in large quantities on the continental shelf off Canada: Photo: Ellen Kenchington, DFO. The Aquatic Symbiosis project will be the first to produce genomes of glass sponges. Its microbial symbionts, on the other hand, are already well researched (Bayer, Busch et al., mSystems 2020).

Symbioses in Aquatic Environments

International genome project tries to understand how aquatic species thrive together

RV PLOARSTERN and iced sea

Variability in the Arctic Carbon Cycle

GEOMAR scientists study seasonal changes in the Arctic Ocean

Hot vent on the sea floor. Photo: ROV team/GEOMAR

ROV KIEL 6000 discovers ‘clear smokers’ off Iceland

IceAGE3 expedition delivers fascinating images of the seafloor off Iceland

A cod. Photo: Nikolas Linke/GEOMAR

Populations of popular food fish are declining globally

New studies also show opportunities for fisheries management through Corona

Bladder wrack. Photo: Larissa Büdenbender

Marine alga from the Kiel Fjord discovered as a remedy against infections and skin cancer

GEOMAR research group successfully applies bioinformatics methods and machine learning in marine drug discovery

By means of hydroacoustic seafloor mapping Senckenberg and GEOMAR researchers have found out that the seafloor in the Atlantic Ocean is much more diverse than previously assumed. Photo: Senckenberg

"Hard Rock" in the deep sea

The road to deciphering biodiversity on the seabed is stonier than previously assumed

Schematic diagram to Ocean & Human Health. From Franke et. al., 2020.

What's good for the oceans is good for humans

Healthy oceans - important basis for many processes on Earth

Curd box next to manganese nodules at a water depth of more than 4000 metres in the so-called DISCOL area (South-East Pacific). Photo: ROV Team/GEOMAR

Plastic in the deep sea: Virtually unaltered after a quarter of a century

First long-term study on plastic degradation in a water depth of more than 4000 meter

Sampling of the fjord surface water with the research vessel POLARFUCHS. Photo: Jens Klimmeck/GEOMAR

Rainwater flushes microplastics into the Kiel Fjord

First long-term study on microplastic distribution in surface water published

Seagrass meadow in the Baltic Sea. This is not a population, but a clone. Photo Pekka Tuuri Using sea gr

Clones - everything but identical

New study shows why asexual populations of plants or animals can thrive in nature