what are the shoal sea trials

Question: what are the shoal sea trials
- Keywords:
  shoal sea trial
Asked by chrisflyn to Tom on 11 Mar 2016.
- Tom Rooney answered on 11 Mar 2016:
  
  The sea trials were 7 weeks we spent in a port finishing the robot fish project and running experiments. The BBC did a video for us
  http://www.bbc.co.uk/news/science-environment-18124372

Question: what are the shoal sea trials