MRV Scotia: An Update on Survey 1515S

October 30, 2015 by 1 Comment | Category Collaborations, Compliance, Marine Directorate general, Marine Directorate Science, Research Vessel Surveys

On the 19th October 2015, MRV Scotia set sail from Aberdeen on survey 1515S to undertake 15 days of cooperative work between JNCC (Joint Nature Conservation Committee) and MSS (Marine Scotland Science). The survey covered two sites some 100 miles east of Aberdeen, with all scientific work being carried out by our team of four MSS staff, five JNCC staff and the crew of MRV Scotia. Collaborative work such as this has been carried out by the two organisations since 2004.

For this trip, the sites chosen for investigation were the East of Gannet and Montrose Fields and the Norwegian Sedimentary Plain (shown below), which were selected as part of ongoing studies into Marine Protected Areas with special protected features.

After steaming east for around 10 hours, Scotia arrived on station in the East Gannet/Montrose area and started sampling using a 0.25m2 Hamon grab, a large and heavy piece of kit ideal for working over coarse and mixed sediments. The grab samples around 25 litres of sand and mud per sample and deposits it in a catch tray, this sample is then passed through a 1mm mesh and anything remaining (including a variety of worms, shellfish, urchins and hermit crabs) is preserved in a tub or jar. We are planning to collect up to 276 samples over both sites followed by extensive observations of the seabed using TV and digital still camera systems on the Gannet/Montrose site only.

To date (30 October) we have successfully collected just over 200 grab samples and recorded 50 TV tows and we hope, weather permitting, to complete our objectives (with a few added extra sites) by early Sunday morning after which Scotia is scheduled to return to Aberdeen.

Picture 1 below shows the Hamon grab sampler while Picture 2 shows an example of a sample after having been sieved.


Further Information

Figure 1: East of Gannet and Montrose Fields and the Norwegian Sedimentary Plain

Figure 1 1515S East of Gannet and Montrose Fields and the Norwegian Sedimentary Plain

Picture 1: Hamon grab sampler

Picture 2 1515S Example of a sample after having been sieved

Picture 2: Example of a sample after having been sievedPicture 1 1515S Hamon grab sampler

Previous Post:

MRV Scotia: Survey 1515S – dated 16th October


Leave a comment

By submitting a comment, you understand it may be published on this public website. Please read our privacy policy to see how the Scottish Government handles your information.

Your email address will not be published. Required fields are marked *