Notice

Manx Wildlife Trust

“The Manx Wildlife Trusts identification Guide on Invasive non-native species in Isle of Man waters is an invaluable aide for sports divers and professionals. The fact that it is pocket sized and waterproof has made it something that can easily be carried when out on a boat or roaming around the numerous rock pools along the coast."

Grants awarded - £706.80 in 2014 and £400 in 2017

2014 - The grant received from Sea-Changers was used to produce an identification guide to help people recognise the species of concern, including those already found on the Island and others that may arrive in the future.  

A series of talks was given to raise awareness of the invasive species in Manx waters and potentially new species that could move in, and to launch the ID guides. A press release was issued once the ID guides were produced to promote their availability and the potential impacts of such species in Manx waters. This was further promoted through MWT's website, Facebook and twitter accounts.

Invasive species surveys were undertaken with the public and a volunteer. At the Queenie Festival, invasive species tanks were on display for people (approx 6-7000 people attended) to look at the specimens collected. Any invasive species sightings are reported back to the Trust and records updated on the species distribution and abundance. New sites have already been identified. 

2017 - The aim of the project is to reassess the current situation with regards to Tributyltin (TBT) contamination in the Manx marine environment and the levels of imposex (TBT can cause female dog whelks to develop male sexual characteristics) in dog whelks around the coast. This will be achieved by collecting dog whelk specimens from various locations around the island and assessing the stages of imposex seen in females and the male to female ratio within the various populations.

In addition, sediment samples will be collected to look at the levels of contamination in the environment. These findings will then be compared to earlier research undertaken in 2004 and 2005.

Outcomes

2014 - Of the 300 guides produced over 200 have been distributed to various groups from divers to the general public to the harbour masters and local RNLI and this will continue into next year; over 50 people attended the talks; the Queenie Festival drew in around 6-7000 people over the two days, with around 20 volunteers helping to man the touch tanks; and approximately 10 people attended the invasive species survey in Ramsey

A volunteer has started to undertaking systematic Sargassum muticum (wireweed) surveys for the Trust at several locations around the Island to see how this species distribution and abundance has changed from a previous survey. The invasive species surveys will continue into the future. As a result of the ID guides and the awareness raising, several new records have been made for existing invasive species but at new locations not previously recorded before, so helping to build up current knowledge of these species and their distribution. 

2017 - This project is still running and hasn't been evaluated yet.

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