BODC Cruise Metadata Report for FRV Scotia (748S) cruise 1112S
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | FRV Scotia (748S) cruise 1112S |
|---|---|
| Short name | 1112S |
| Objectives and Narrative |
Objectives
1. To undertake the bottom trawl survey of haddock on the Rockall Plateau to depths of 350 m. 2. To deploy a CTD at each trawl station to collect temperature and salinity profiles. 3. To collect samples (genetics and otoliths) for key species for population studies, contaminant studies and other requests, e.g. MSFD litter recording. 4. To map seabed habitats and coral reefs using towed VMUX chariot video system and/or the swathe multibeam echosounder. Procedures The primary objective of this part of the survey is to assess the state of the haddock stock on the Rockall Plateau. Although the Rockall haddock survey has existed for a number of years, since 2011 a new semi random stratified survey design is now utilised comprising four sampling strata separated according to depth. The overall survey coverage reflects that of the previous fixed station design, however, the sampling intensity for each stratum reflects the fish density in each stratum. Trawling will be carried out during the hours of daylight at randomly selected locations within the 350 metre contour. Forty tow positions have been generated and their allocation within each depth stratum is displayed in Figure 1. The number of stations within each depth strata is as follows: 2 stations at 0-140m, 12 stations at 140-200m, 11 stations at 200-250m and 15 stations at 250-350m. One haul of 30 minutes duration will be made at each sampling station. Daily start times for survey stations will be at approximately 06:00 hrs and continue until approximately 20:00 hrs. The Scanmar system will be used to monitor wing spread, door spread and distance covered during each haul. A bottom contact sensor will be mounted on the footrope to record the distance of the trawl off the seabed. Catches will be worked up according to the protocols for International Bottom Trawl Surveys and in line with MSS Standing Instructions. A CTD will be deployed at each trawl station. At night, the VMUX towed video chariot will be deployed in and outside areas closed for the protection of coldwater coral reefs and in areas of interest identified within the 12 mile limit of the islet of Rockall. In the case of weather conditions curtailing deployment of the VMUX, the swathe MBES will be considered as an option for opportunistic mapping of the seabed building on previous swathe mapping of the area. Upon completion of the Rockall haddock survey, passage will be made to Ullapool for half-landing on or around 15 September. The GOV net and associated gear will be stripped down and offloaded together with TV kit at Ullapool in exchange for the deepwater trawl gear. Normal contacts will be maintained with the Laboratory. |
| Ship | FRV Scotia |
| Departure Port | Aberdeen, United Kingdom |
| Departure Date | 2012-09-06 |
| Arrival Port | Ullapool, United Kingdom |
| Arrival Date | 2012-09-14 |
| Principal Scientist(s) | James Drewery (Marine Scotland Aberdeen Marine Laboratory) |
| Responsible Organisation | Marine Scotland Aberdeen Marine Laboratory |
| Associated Project(s) | Rockall Haddock Survey |
| IHB Sea Areas Visited | North East Atlantic Ocean (limit 40W) |
| Marsden Squares Visited | 182;3/182;4 |
| Work Area Description | Rockall Plateau |
| Unable to lookup cruise bounds at this time | |
| Work Area Bounding Polygon | |
| Southern Limit | unknown |
| Northern Limit | unknown |
| Western Limit | unknown |
| Eastern Limit | unknown |
Cruise Inventory Datasets
No information on datasets is currently available for this cruise
Cruise Inventory Mooring/Buoy Operations
No information on datasets is currently available
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 20 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Concentration of suspended particulate material in the water column Density of the water column Electrical conductivity of the water column Reference numbers Salinity of the water column Temperature of the water column Vertical spatial coordinates |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 1182476 | CTD/STD cast | 2012-09-08 07:20Z | 56° 54' N, 13° 34' W | Click for more |
| 1182488 | CTD/STD cast | 2012-09-08 10:02Z | 57° 1' N, 13° 50' W | Click for more |
| 1182507 | CTD/STD cast | 2012-09-08 12:23Z | 57° 13' N, 13° 44' W | Click for more |
| 1182519 | CTD/STD cast | 2012-09-08 14:58Z | 57° 21' N, 13° 27' W | Click for more |
| 1182520 | CTD/STD cast | 2012-09-08 20:37Z | 57° 36' N, 13° 0' W | Click for more |
| 1182532 | CTD/STD cast | 2012-09-09 04:31Z | 57° 37' N, 13° 24' W | Click for more |
| 1182544 | CTD/STD cast | 2012-09-09 07:59Z | 57° 38' N, 13° 9' W | Click for more |
| 1182556 | CTD/STD cast | 2012-09-09 12:59Z | 58° 3' N, 13° 14' W | Click for more |
| 1182568 | CTD/STD cast | 2012-09-09 21:36Z | 58° 3' N, 14° 19' W | Click for more |
| 1182581 | CTD/STD cast | 2012-09-10 06:05Z | 57° 27' N, 14° 6' W | Click for more |
| 1182593 | CTD/STD cast | 2012-09-10 08:26Z | 57° 45' N, 13° 52' W | Click for more |
| 1182600 | CTD/STD cast | 2012-09-10 13:20Z | 57° 25' N, 13° 55' W | Click for more |
| 1182612 | CTD/STD cast | 2012-09-10 17:21Z | 57° 8' N, 14° 5' W | Click for more |
| 1182624 | CTD/STD cast | 2012-09-11 04:30Z | 57° 5' N, 14° 55' W | Click for more |
| 1182636 | CTD/STD cast | 2012-09-11 11:43Z | 56° 37' N, 14° 45' W | Click for more |
| 1182648 | CTD/STD cast | 2012-09-11 16:04Z | 56° 25' N, 15° 3' W | Click for more |
| 1182661 | CTD/STD cast | 2012-09-11 19:33Z | 56° 25' N, 15° 21' W | Click for more |
| 1182673 | CTD/STD cast | 2012-09-12 04:32Z | 55° 57' N, 15° 18' W | Click for more |
| 1182685 | CTD/STD cast | 2012-09-12 17:16Z | 56° 54' N, 14° 19' W | Click for more |
| 1182697 | CTD/STD cast | 2012-09-13 07:46Z | 56° 51' N, 14° 8' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
