Supported by Nature - nature based solution learning sites for a sustainable Baltic Sea
Supported by Nature

Transforming Harbour Spaces into Biodiversity Hotspots on Møn

06 March 2026
As part of the Supported by Nature project, 25 so-called “fish nurseries” – or Biohuts – have been installed in Klintholm Harbour on eastern Møn, Denmark.
Technical details

 

A volunteer helps with the installation of a Biohut. Photo: Vordingborg Municipality

 

A fish nursery functions as an underwater kindergarten for juvenile fish, providing sheltered spaces where small fish can hide and grow in safe conditions. Each Biohut consists of a steel cage filled with oyster shells and suspended beneath the harbour pontoons. They mimic natural habitats and serve as shelter and feeding grounds, creating favourable conditions for a wide range of marine species.

 

A Biohut consists of a steel cage filled with oyster shells. Photo: Vordingborg Municipality

 

The fish nurseries are not only a nature restoration measure, they also serve as learning sites. Visitors and school classes can gain insight into life beneath the sea surface and learn how nature-based solutions can help improve the marine environment. The long-term ambition is to develop Klintholm Harbour into a communication hub and local “hotspot” for knowledge and inspiration about marine ecosystems.

The fish nurseries were established through close collaboration between the local association Vandklubben Klintholm Havn, the Port Team of Vordingborg Municipality, and Møn Biosphere Reserve.

 

The inauguration of Fish Kindergartens in Klintholm Havn. Photo: Vordingborg Municipality

Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.