Cruise inventory

FRV Scotia 0311S

Cruise plan

Cruise Info. 
Ship name (ship code)FRV Scotia (748S)
Cruise identifier0311S
Cruise period2011-02-22 — 2011-03-16
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeFisheries
ObjectivesObjectives

1. Demersal trawling survey of the grounds off the north and west of Scotland in ICES Subarea VIa.
2. To 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).
4. Collect abundance data on herring larvae using the Methot net.

Procedures

General

Loading of the trawl gear will take place on 17 February with rigging and testing being completed on the same day. Loading of the scientific gear will take place on 18 February. Scotia will then sail on the morning of Tuesday 22 February. A training haul will be undertaken during the passage north to ensure all fishing gear/sensors are working effectively. Scotia will then proceed north and commence fishing operations the next morning on predefined stations off the north Scottish coast and west of 4'W with weather conditions thereafter determining the route taken on the survey.

Trawling

This year the survey design, rather than relying on fixed trawling locations will move to a new random-stratified survey design with trawl locations randomly distributed within 6 predefined sampling strata. The random positions have still to be generated and once this takes place they will be circulated to the vessel in advance of the survey for the fishing master to examine. The intention is for trawls to be undertaken on suitable ground as near to the specified sampling position as is practicable and where possible within a radius of 5 nautical miles of the sampling position. Hauls will be of 30 minutes duration and, in the main, fishing operations will be restricted to daylight hours between 0700 and 1800 though exact start and finish times will vary slightly according to geographical location. The scanmar system will be used to monitor the headline height, wingspread 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.

Hydrography

CTD casts will be taken at each trawl station; in addition, the thermosalinograph will run continuously to obtain sea surface temperature and salinity throughout the survey area.

Methot Net Sampling

Oblique tows will be carried out in all ICES statistical squares where the trawl is deployed. It is the objective to complete 2 methot samples in each square. These will be undertaken during the hours of darkness using the Methot mid-water trawl (round frame).
Chief scientistFinlay Burns (Marine Scotland Aberdeen Marine Laboratory)
ProjectRV1102
Cruise programmeFRV Scotia 0311S cruise programme 0311s.pdf — access key 'C' (0.05 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificICES Subarea Via
Track chartsFRV Scotia 0311S cruise track — 0311strk.pdf (0.03 MB) 
Data held at BODC 
Series/Profiles 
57  CTD/STD cast
Density of the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Reference numbers
Density of the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Reference numbers

BODC idDate/TimeLocationDoc.
11567832011-03-12 08:28 55° 36' 13" N  7° 35' 54" W  View metadata report for BODC series reference number 1156783
11567952011-03-12 10:23 55° 44' 26" N  7° 25' 48" W  View metadata report for BODC series reference number 1156795
11568022011-03-12 12:11 55° 51' 57" N  7° 15' 23" W  View metadata report for BODC series reference number 1156802
11568142011-03-12 15:09 56° 5' 2" N  7° 39' 6" W  View metadata report for BODC series reference number 1156814
11568262011-03-12 20:32 56° 16' 48" N  7° 38' 40" W  View metadata report for BODC series reference number 1156826
11568382011-03-13 11:30 56° 45' 54" N  6° 47' 48" W  View metadata report for BODC series reference number 1156838
11568512011-03-13 14:18 56° 40' 1" N  7° 5' 58" W  View metadata report for BODC series reference number 1156851
11568632011-03-13 20:02 56° 58' 20" N  6° 33' 15" W  View metadata report for BODC series reference number 1156863
11568752011-03-14 05:52 57° 9' 4" N  6° 23' 17" W  View metadata report for BODC series reference number 1156875
11568872011-03-14 07:52 57° 11' 16" N  6° 41' 32" W  View metadata report for BODC series reference number 1156887
11568992011-03-14 19:00 58° 46' 4" N  6° 9' 38" W  View metadata report for BODC series reference number 1156899
11562852011-02-23 07:31 58° 40' 22" N  4° 7' 45" W  View metadata report for BODC series reference number 1156285
11562972011-02-23 10:48 58° 42' 35" N  4° 20' 16" W  View metadata report for BODC series reference number 1156297
11563042011-02-23 13:17 58° 38' 44" N  4° 43' 1" W  View metadata report for BODC series reference number 1156304
11563162011-02-23 18:30 58° 59' 49" N  4° 48' 43" W  View metadata report for BODC series reference number 1156316
11563282011-02-24 09:12 59° 14' 24" N  5° 1' 0" W  View metadata report for BODC series reference number 1156328
11563412011-02-24 11:08 59° 11' 40" N  4° 37' 2" W  View metadata report for BODC series reference number 1156341
11563532011-02-24 13:55 59° 14' 58" N  4° 11' 5" W  View metadata report for BODC series reference number 1156353
11563652011-02-25 11:32 59° 30' 37" N  4° 28' 19" W  View metadata report for BODC series reference number 1156365
11563772011-02-25 16:01 59° 39' 46" N  4° 34' 30" W  View metadata report for BODC series reference number 1156377
11563892011-02-26 05:05 59° 50' 37" N  5° 26' 46" W  View metadata report for BODC series reference number 1156389
11563902011-02-26 10:30 59° 40' 43" N  5° 30' 4" W  View metadata report for BODC series reference number 1156390
11564082011-02-26 13:17 59° 18' 47" N  5° 36' 10" W  View metadata report for BODC series reference number 1156408
11564212011-02-26 17:40 59° 15' 2" N  6° 21' 17" W  View metadata report for BODC series reference number 1156421
11564332011-02-27 06:44 58° 40' 43" N  8° 9' 49" W  View metadata report for BODC series reference number 1156433
11564452011-02-27 11:26 58° 38' 14" N  8° 16' 22" W  View metadata report for BODC series reference number 1156445
11564572011-02-27 15:45 58° 14' 4" N  8° 0' 16" W  View metadata report for BODC series reference number 1156457
11564692011-02-27 19:00 58° 20' 7" N  7° 54' 57" W  View metadata report for BODC series reference number 1156469
11564702011-02-28 05:45 58° 22' 31" N  8° 21' 12" W  View metadata report for BODC series reference number 1156470
11564822011-02-28 11:56 57° 52' 59" N  8° 50' 52" W  View metadata report for BODC series reference number 1156482
11564942011-03-01 05:10 57° 41' 23" N  9° 29' 26" W  View metadata report for BODC series reference number 1156494
11565012011-03-01 11:52 57° 27' 28" N  8° 31' 43" W  View metadata report for BODC series reference number 1156501
11565132011-03-01 15:50 57° 1' 34" N  8° 28' 39" W  View metadata report for BODC series reference number 1156513
11565252011-03-02 10:25 58° 19' 22" N  5° 51' 40" W  View metadata report for BODC series reference number 1156525
11565372011-03-02 12:39 58° 25' 8" N  5° 55' 17" W  View metadata report for BODC series reference number 1156537
11565492011-03-02 18:29 57° 42' 14" N  5° 57' 15" W  View metadata report for BODC series reference number 1156549
11565502011-03-03 08:24 57° 7' 4" N  8° 14' 58" W  View metadata report for BODC series reference number 1156550
11565622011-03-03 11:30 56° 50' 18" N  8° 33' 14" W  View metadata report for BODC series reference number 1156562
11565742011-03-03 13:25 56° 47' 23" N  8° 47' 35" W  View metadata report for BODC series reference number 1156574
11565862011-03-03 16:41 56° 51' 22" N  9° 3' 1" W  View metadata report for BODC series reference number 1156586
11565982011-03-03 22:12 56° 38' 28" N  9° 2' 3" W  View metadata report for BODC series reference number 1156598
11566052011-03-04 06:49 56° 26' 2" N  9° 1' 57" W  View metadata report for BODC series reference number 1156605
11566172011-03-04 11:06 56° 0' 24" N  8° 49' 34" W  View metadata report for BODC series reference number 1156617
11566292011-03-04 16:11 55° 27' 41" N  9° 14' 17" W  View metadata report for BODC series reference number 1156629
11566302011-03-05 08:15 54° 45' 42" N  10° 17' 13" W  View metadata report for BODC series reference number 1156630
11566422011-03-05 10:43 54° 37' 41" N  9° 58' 0" W  View metadata report for BODC series reference number 1156642
11566542011-03-05 15:35 54° 51' 32" N  8° 59' 27" W  View metadata report for BODC series reference number 1156654
11566662011-03-06 11:41 55° 3' 29" N  8° 44' 39" W  View metadata report for BODC series reference number 1156666
11566782011-03-06 15:25 55° 26' 34" N  8° 42' 26" W  View metadata report for BODC series reference number 1156678
11566912011-03-09 02:58 55° 44' 11" N  5° 11' 44" W  View metadata report for BODC series reference number 1156691
11567092011-03-09 11:04 55° 18' 56" N  4° 58' 55" W  View metadata report for BODC series reference number 1156709
11567102011-03-09 14:34 55° 4' 23" N  5° 13' 4" W  View metadata report for BODC series reference number 1156710
11567222011-03-09 19:56 55° 12' 15" N  5° 38' 45" W  View metadata report for BODC series reference number 1156722
11567342011-03-11 06:36 55° 25' 50" N  6° 3' 49" W  View metadata report for BODC series reference number 1156734
11567462011-03-11 11:00 55° 23' 3" N  6° 29' 34" W  View metadata report for BODC series reference number 1156746
11567582011-03-11 14:24 55° 18' 15" N  6° 53' 10" W  View metadata report for BODC series reference number 1156758
11567712011-03-12 05:49 55° 30' 52" N  7° 22' 19" W  View metadata report for BODC series reference number 1156771