Ross Finnie attended the launch with Sepa chairman Sir Ken Collins

The Sir John Murray has been designed to enable the Scottish Environment Protection Agency (Sepa) to monitor the quality of water around the coastline.

Sir Ken Collins, Sepa chairman, said the vessel would provide it with "precise and accurate technology".

Environment Minister Ross Finnie said the boat would act as an important tool for marine research.

Sir Ken said: "Sepa is a highly scientific organisation which uses up to date, reliable science to protect Scotland's environment.

Modern science requires modern equipment and this vessel will provide our staff with the best, most precise and accurate technology Sir Ken Collins Sepa chairman

"The addition of this new vessel is going to enhance the work that Sepa can do to protect the marine environment in particular.

"Modern science requires modern equipment and this vessel will provide our staff with the best, most precise and accurate technology."

Diverse wildlife

The environment minister said Scotland should take pride in its marine environment.

"Our marine and coastal waters not only support a diverse range of wildlife and habitats but they also provide food and recreation for the people of Scotland and beyond," said Mr Finnie.

"The Sir John Murray will allow Sepa access to more exposed water enabling the organisation to measure the effect of industrial emissions and waste levels anywhere within Scottish water."