Bord Iascaigh Mhara, Ireland's Seafood Development Agency conducts Seed Mussel Surveys to assist in the responsible growth of Irish aquaculture. They recently purchased a VideoRay Pro 4 outfitted with BlueView multibeam sonar, and rotating manipulator purchased through TechWorks Marine, VideoRay's dealer in Ireland to assist with this task, providing high resolution images, detailed sonar information, and samples from beds. This equipment replaces expensive divers, and other unreliable ROVs previously used less efficiently and effectively for the same purposes.

Reference:  http://www.bim.ie/seedmusselsurvey/ 

Full Article: credit Marine Times News