Cruise inventory

FRV Scotia 0316S

Cruise plan

Cruise Info. 
Ship name (ship code)FRV Scotia (748S)
Cruise identifier0316S
Cruise period2016-02-16 — 2016-03-07
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
ObjectivesObjectives

1. Demersal trawling survey of the grounds off the north and west of Scotland in ICES Subarea VIa.
2. Obtain temperature and salinity data from the surface and seabed at each trawling station.
3. Collect additional biological data in connection with the EU Data Collection Framework (DCF).

Procedure

Loading of the trawl gear and scientific equipment will take place on 12 February with rigging and testing being completed on the same day. Further loading may be undertaken on 15 February. Scotia will sail on the morning of 16 February and after vessel drills, a trial haul will be undertaken during the passage north to ensure all fishing gear/sensors are working effectively. Scotia will then commence fishing operations the following morning on predefined stations off the north Scottish coast and west of 4W, with weather conditions thereafter determining the route taken on the survey.

This is a random-stratified survey design with trawl stations being distributed within ten predefined strata covering the sampling area. 64 primary and 45 secondary stations have been generated. The intention is for 64 trawls to be undertaken on suitable ground as near to the specified primary sampling positions as is practicable, and where possible within a radius of five nautical miles of the sampling position. In the event that trawling is not possible within five nm of any primary station then the nearest appropriate secondary station will be used. Hauls will be of 30 minutes duration and in the main, fishing operations will be restricted to daylight hours between 0700 hours and 1800 hours, though exact start and finish times will vary slightly according to geographical location. The Scanmar system will be used to monitor the headline height, wing spread and door spread for each haul. Bottom contact data from each trawl will also be collected using the NOAA bottom contact sensor which will be mounted on a bar in the centre of the ground-gear. In addition to the routine sampling, biological data will be collected for target species in line with the EU data regulation. All fish will be processed in accordance with standing instructions.

A CTD cast will be taken at each trawl station; in addition the thermosalinograph will run continuously to obtain sea surface temperature and salinity data throughout the survey area.
Chief scientistJames Drewery (Marine Scotland Aberdeen Marine Laboratory)
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificNorth and west of Scotland (ICES subarea Via)