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"

Oceanic oxygen minimum zones. Around 30 - 50% of global marine nitrogen loss takes place in these areas. Graphic: SFB 754

How the ocean loses nitrogen

Marine Scientists from Bremen and Kiel (Germany) identify key factor that control nitrogen availability in the Ocean

The submersible JAGO in the Red Sea during a scientific cruise with RV PELAGIA in spring 2012. Photo: JAGO-Team, GEOMAR

Wave riders, salt glaciers and food webs

Scientific colloquium held to conclude the first phase of the Jeddah Transect Project

The Ocean Tracer Injection System is launched. Photo: M. Visbeck, GEOMAR

Expedition off the Coast of West Africa

Second Assignment for Special Water Marking System in the Atlantic

The submersible JAGO and the German research vessel MARIA S. MERIAN off the coast of Spitsbergen. Photo: Karen Hissmann, GEOMAR

Gas Outlets off Spitsbergen Are No New Phenomenon

Expedition to the Greenland Sea with Surprising Results

Until now the specification of a reference point for sustainable management of fish stocks is very difficult. Extensive and expensive research like scientific catches is necessary. Now Dr Froese and Dr Steven Martell have come up with a new, much simpler method to estimate MSY. Photo: M. Nicolai, GEOMAR

A shortcut to sustainable fisheries

Biologists from Kiel and Vancouver present a simple way to estimate Maximum Sustainable Yield

Dr Stefan Krause (GEOMAR/The Future Ocean) in a Lab of GEOMAR. Foto: J. Steffen, GEOMAR

How does Dolomite form?

Scientists in Kiel show the influence of marine bacteria on mineral formation

The basic configuration of an MoLab measuring field. It consists of one Master Lander  (MLM),  three satellite lander (SLM),  three eddy correlation modules (ECM) und  two mooring modules. For the maintainance of the modules ROV PHOCA (E) is being used. Graphic: MoLab-AG, GEOMAR

First Mission for New Ocean Floor Observatory

GEOMAR installs MoLab on a cold water coral reef in the Norwegian Sea

Scientists compare two flatfishes during a fisheries biological cruise with RV ALKOR. Photo: M. Nicolai, GEOMAR

Overfished But Still on the Plate

Nearly 30 percent of the fish products with the MSC or FOS certification come from overfished stocks.

DFG President Prof. Matthias Kleiner presents Prof. Ulf Riebesell the award certificate for the Leibniz Prize 2012. Image: David Ausserhofer, Copyright: DFG

Professor Ulf Riebesell awarded Leibniz-Prize

GEOMAR researcher receives the most highly endowed German science award in Berlin