Danish researchers have now shown that fish such as cod move around with an internal fitness tracker that continuously logs information about the fish’s metabolism. Information is recorded in the calcium structure in the fish’s otoliths and can be used to gain new knowledge about how changes in the marine environment affect a fish’s metabolism and behavior. Photo: Peter Grønkjær.
The fish’s fitness tracker. The carbon in fish otoliths comes from two sources, partly from the water in the form of dissolved inorganic carbon (blue bullets) and partly from the food burnt off as part of the fish's metabolism (red bullets). Carbon from the two sources is diffused into the fish’s blood. When the fish’s metabolism increases, the proportion of carbon from the food increases, and there will be more "red bullets” in the blood supplying the carbon to the otoliths in the fish’s inner ear. In this way, the growth rings of the otoliths continuously record record information on the fish’s metabolism in the form of the so-called delta 13C value. Illustration: Ming Tsung-Chung.

2018.12.11 |

Otoliths - the fish’s black box - also keeps an eye on the metabolism

For the first time ever, an international research team has shown that fish otoliths record information on fish metabolism. Analyses of old and new otoliths can therefore provide new knowledge about how different species of fish adapt to new conditions, including climate change.

Over the past couple of years, AU students have helped ready the Delphini - 1 nanosatellite for launch. The satellite is now on board the International space station, from which it will be put into orbit around Earth in February. The aim of the ESA BIC DK is to encourage the students to start their own businesses within space technology after the end of their studies. Photo: Lars Kruse/AU Photo.
Associate professor Christoffer Karoff. Photo: Private

2019.01.15 |

Science and Technology to educate future space entrepreneurs

ST will be help students to come up with ideas for start-ups through an interdisciplinary Space Entrepreneurship Programme, which will teach students in subjects within both space technology and entrepreneurship.

Professor Torben Heick Jensen receives DKK 60 million from the Novo Nordisk Foundation to establish the research center 'Exo-Adapt', which will determine how our cells sort genetic information. Photo: Lisbeth Heilesen.

2019.01.08 |

60 million Danish kroner for basic biomedical research

Professor Torben Heick Jensen, Department of Molecular Biology and Genetics, Aarhus University, receives DKK 60 million from the Novo Nordisk Foundation's Challenge Programme to establish the research center 'Exo-Adapt', which will determine how our cells sort genetic information.

Satellite images reveal global poverty. Part of figure. © Gary Watmough
On satellite images, researchers can identify the smallest details in specific areas, including the size of the cottages, a decisive indicator of the living standard in the area. The images also reveal how the surrounding areas are exploited – for example for animal grazing, growing of crops or gathering firewood. © Gary Watmough
Landscape with cottages and exploited areas in Kenya. Photo: Gary Watmough  
The area of exploited fields in Kenya may be small and varies from year to year. Photo: Gary Watmough

2019.01.03 |

Satellite images reveal global poverty

How far have we come in achieving the UN’s sustainable development goals that we are committed to nationally and internationally? Yes, it can be difficult to make a global assessment of poverty and poor economic conditions, but with an eye in the sky, researchers are able to give us a very good hint of the living conditions of populations in the…

2019.01.03 |

Aarhus University participates in a new Oresund-Kattegat-Skagerak EU Life Science Network

Gregers Rom Andersen and Poul Nissen from the Department of Molecular Biology and Genetics, Aarhus University, participate in a new three-year EU project for the Oresund-Kattegat-Skagerak (OKS) area, which has received a grant from the EU of EUR 3.6 million.