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Danish researchers discover new method to monitor life in the oceans

Lucie Rychla
November 29th, 2016


This article is more than 8 years old.

It can help detect the effect of fisheries and climate change on maritime biodiversity

Danish researchers have discovered a new method to help identify deep ocean wildlife. It enables them to analyse the environmental DNA (eDNA) of a water sample.

This relatively simple, cheap and non-invasive technique can be used for qualitative and quantitative oceanic fish surveys, which currently rely on bottom trawling and reports of global catches.

Thanks to the eDNA analysis, researchers can identify not only what type of species live in the deep oceans, but also their volume.

READ MORE: Cod and plaice thriving in Danish waters

‘[This] means that in the future we can get a better overview of what lives deep in the oceans around the world, and the method can also be used as a tool to explore the effects of climate change in the Arctic,” Philip Francis Thomsen, a researcher at the Centre for GeoGenetics at the Natural History Museum in Copenhagen, told magazine Videnskab.

Tobias Frøslev, an assistant professor at the Institute of Biology at the University of Copenhagen, agrees that the new eDNA method can assist in detecting and monitoring marine biodiversity, which is under great pressure from both fisheries and climate change.


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A survey carried out by Megafon for TV2 has found that 71 percent of parents have handed over children to daycare in spite of them being sick.

Moreover, 21 percent of those surveyed admitted to medicating their kids with paracetamol, such as Panodil, before sending them to school.

The FOLA parents’ organisation is shocked by the findings.

“I think it is absolutely crazy. It simply cannot be that a child goes to school sick and plays with lots of other children. Then we are faced with the fact that they will infect the whole institution,” said FOLA chair Signe Nielsen.

Pill pushers
At the Børnehuset daycare institution in Silkeborg a meeting was called where parents were implored not to bring their sick children to school.

At Børnehuset there are fears that parents prefer to pack their kids off with a pill without informing teachers.

“We occasionally have children who that they have had a pill for breakfast,” said headteacher Susanne Bødker. “You might think that it is a Panodil more than a vitamin pill, if it is a child who has just been sick, for example.”

Parents sick and tired
Parents, when confronted, often cite pressure at work as a reason for not being able to stay at home with their children.

Many declare that they simply cannot take another day off, as they are afraid of being fired.

Allan Randrup Thomsen, a professor of virology at KU, has heavily criticised the parents’ actions, describing the current situation as a “vicious circle”.

“It promotes the spread of viruses, and it adds momentum to a cycle where parents are pressured by high levels of sick-leave. If they then choose to send the children to daycare while they are still recovering, they keep the epidemic going in daycares, and this in turn puts a greater burden on the parents.”