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Seahorse nurseries

This new rewilding project will create a haven for protected UK seahorses
Katie Hill - Editor-in-Chief, My Green Pod
Seahorse nurseries

Main image: Neil Garrick-Maidment

A new rewilding project aims to create a safe habitat for one of the UK’s native seahorse species, the protected short-snouted seahorse, along with other juvenile and vulnerable marine wildlife.

Both of the UK’s native seahorse species – the spiny seahorse and the short-snouted seahorse– were granted protected status in 2008 under the Wildlife and Countryside Act.

Coastline Deadline

Working with The Seahorse Trust and national boating business boatfolk, researchers from the University of Portsmouth installed the first Biohut cage system at Haslar Marina in Portsmouth.

The rewilding project forms part of boatfolk’s wider environmental programme, Coastline Deadline, designed to back projects which have a positive and measurable impact on the coastline.

‘The immensely important work that the University of Portsmouth is doing in partnership with boatfolk and us at The Seahorse Trust will make a significant difference to the seahorses found in the marinas.

‘By providing additional, secure habitats for the seahorses, boatfolk’s marinas will become a safe haven for so many important species.

‘The biodiversity that will build up under the pontoons will act as a natural filter and ecological reservoir, enhancing the site and making a considerable difference to the carbon footprint of the marinas, as well as increasing biodiversity in the region.

‘When this is rolled out to other boatfolk sites along the South Coast, the Biohuts will become an important habitat for so many critical species, helping to enhance and protect our natural world.’

Executive director and founder of The Seahorse Trust

An aquatic nursery

The Biohut is an artificial marine aquatic nursery, which provides shelter to many juvenile species. It restores the ecological nursery function that is lost when natural shallow coastal waters become urban environments.

A specialist gauge rope has also been added to give the short-snouted seahorse the ideal environment to thrive, hunt and hide from prey. 

The Biohuts were designed, built and deployed by Dr Ian Hendy from the University’s Institute of Marine Sciences (IMS) along with his two Masters students, Stephanie Northen and Georgios Georgiou.

Dr Hendy and his students are doing all of the data collection and analysis and providing expert advice on the project, too.

‘While many studies report on the decline of coastal biodiversity, we will be reporting on how the Biohuts have created new and safe habitats for a vast number of baby, rare, and endangered aquatic animals in the marinas of the Solent. This project will greatly improve the vibrant wildlife, the environment and will benefit communities local to the Solent.

‘This rewilding also fits into the larger narrative of several projects that we have running at IMS which includes the Help our Kelp project (championed by Sir David Attenborough), as well as a project to restore the native oyster to the Solent and saltmarsh restoration work along the South Coast.’

University of Portsmouth’s Institute of Marine Sciences

Data from Biohuts

Beside its ecological benefits, the Biohut is a useful tool to collect scientific data on coastal colonisation by juvenile fish, as well as raising public awareness on marine biodiversity.

The boatfolk team urges budding marine biologists and green-minded citizens alike to watch the underwater cameras here and get in touch to say what wildlife they have spotted.  

Biohuts are currently deployed at Port Hamble and will soon be deployed in a marina at Cowes on the Isle of Wight.

Boatfolk currently operates more than 4,000 berths spanning 11 marinas located around the UK coastline. There are plans to install more of the Biohuts in other South Coast marinas.

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