Human impacts on marine ecosystems

Human activities affect marine ecosystems as a result of pollution, overfishing, the introduction of invasive species,and acidification, which all impact on the marine food web and may lead to largely unknown consequences for the biodiversity and survival of marine life forms.

News for topic: Human impacts on marine ecosystems

The three-dimensional representation of the sponge tissue illustrates the close contact of sponge cells (red) with the bacteria (turquoise) living in the sponge.. Photo: Martin T. Jahn/GEOMAR
24.09.2019

Symbiosis as a tripartite relationship

Investigation of viral communities of sponges allows new insights into the mechanisms of symbiosis

[Translate to English:] Rotalgen der Art Agarophyton vermyculophyllum. Photo: Mahasweta Saha/PML
13.05.2019

Seaweeds can attract friends and keep away enemies

Scientists from Kiel and Plymouth show for the first time health-promoting microbial manipulation in aquatic plants

[Translate to English:] Ein gestreifter Hamletbarsch (Hypoplectrus puella) vor der Küste Panamas. Foto: Kosmas Hench/GEOMAR
04.03.2019

How new species arise in the sea

Study sheds new light on a fundamental question in evolutionary biology

Commercial trawling (left) and catches of elasmobranch (right) outside and inside of protected areas. Graphics: M. Dureuil, Dalhousie Univ.
20.12.2018

Marine Protected Areas not safe

Bottom trawling endangers many species

A diver next to a mesocosm off the coast of Gran Canaria. Photo: Michael Sswat/GEOMAR (CC BY 4.0)
19.11.2018

Ocean acidification stimulates mass development of toxic algae

Long-term experiment reveals disruption of the pelagic food web under high CO2 conditions

A specimen of Blackfordia virginica. Photo: Cornelia Jaspers/GEOMAR, DTU Aqua (CC BY 4.0)
24.08.2018

New jellyfish species in the Kiel Canal

Further spread of Blackfordia virginica into the Baltic Sea is likely

Dr. Mark Hopwood during a measurement campaign on the coast of Greenland. Photo: Thomas Juul-Pedersen / GCRC
14.08.2018

Glacier depth affects plankton blooms off Greenland

Study shows complex connection between meltwater discharge and nutrient input

Microplastics collected from the stomach of one Christmas Shearwater (Puffinus nativitatis) found dead on Salas y Gómez Island. Photo: Matías Portflitt Toro
10.08.2018

Marine litter in remote regions of the oceans

Chilean-German researchers show impressive effects on the marine ecosystem

Global maps of species richness (left) and speciation rate (right). After Rabosky et al., 2018).
05.07.2018

A cold paradox:

Not warm coral reefs but icy polar seas are centres of species formation for marine fishes

Mussels of the species Perna perna originally live in Europe, Africa and South America, but have invaded North American waters. As part of the global GAME experiment, they were examined in Brazil Photo: Felipe Ribeiro
12.06.2018

Travel Stress can Train Bioinvaders

International study identifies a new potential driver of invasion success in marine species