Cruise inventory

FRV Scotia 1406S

Cruise summary report

Cruise Info. 
Ship name (ship code)FRV Scotia (748S)
Cruise identifier1406S
Cruise period2006-09-08 — 2006-09-28
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
ObjectivesFRS Objectives

1. Routine daylight survey of the Rockall Plateau to assess the haddock stock within the 200 metre contour.
2. Nephrops TV observation work along the East edge of the bank to depths of 500 metres.
3. Identify, quantify and record all benthic invertebrate species caught.
4. Obtain temperature and salinity data from the surface and seabed at each trawling station.
5. Collect additional biological data in connection with the EU Data Directive 1639/2001.

PU / JNCC Objectives

1. Opportunistic use of the drop frame and to contribute to mapping distribution of Annex I reef habitat as required under the EC Habitats Directive.
2. Collection of invertebrate fauna from trawl samples.

Aberdeen and Bristol University Objectives

1. Carry out behavioural experiments on bioluminescent organisms retrieved using deep-water free-fall traps (maximum of 3 deployments).
2. Collect fish eyes from a range of depths (<200m to 1800m) for visual pigment studies; spectroscopy and molecular studies of pressure sensitivity of enzymes.

Narrative

Scotia sailed from Aberdeen at 1530 on Friday 8 Sept and proceeded to make passage to the first fish trap deployment at position 57.36N 12.52W. Scotia arrived on station at 0410 10 Sept and the trap was successfully deployed at a depth of 1039metres. Scotia continued west to position 57.31N 13.25W where fishing commenced at 0700. Trawling continued during daylight hours for the next 6 days, with a 5 hour interruption for weather on the morning of the 14 Sept. In line with the WTD 6-7 hauls were completed within the 13 hour working day. On the afternoon of 15 Sept the net was badly damaged by a boulder and with an increasing forecast the decision was taken to drop the last 3 hauls of the haddock survey. Prior to the weather deteriorating the 2000kg trawl doors were dropped into position in readiness for deepwater fishing. During trawling downtime the Drop Frame was deployed at various locations to assess Nephrops abundance and map distribution of Annex I reef habitat at selected sites.
Chief scientistKevin J Peach (Fisheries Research Services Aberdeen Marine Laboratory)
ProjectRV0610, MF01TA
Coordinating bodyFRS
Cruise reportFRV Scotia 1406S cruise report 1406s.pdf — access key 'C' (0.36 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificRockall Plateau, Rockall Trough, Anton Dohrn Seamount, and continental slope west of Scotland
Track chartsFRV Scotia 1406S cruise track — 1406strk.pdf (00 MB) 
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 33
Description: CTD profiles collected at GOV trawl stations
Subsurface temperature and salinity measurementsQuantity: number of measurements = 1
Description: Temperature and salinity measurements were collected throughout the cruise.
Biology and fisheries 
ZooplanktonQuantity: number of deployments = 3
Description: Deepwater free-fall trap deployed in depths ranging from 780-1039 metres.
Pelagic fishQuantity: number of hauls = 34
Description: Jackson Deepwater trawl
Demersal fishQuantity: number of hauls = 34
Description: Jackson Deepwater trawl
Demersal fishQuantity: number of hauls = 33
Description: GOV trawls in the Rockall area to assess the haddock stock.
CrustaceansQuantity: number of surveys = 1
Description: Underwater TV survey to gauge nephrops populations and reef habitat. Number of deployments not recorded.
Geology and geophysics 
Bottom photographyQuantity: number of surveys = 1
Description: Underwater TV survey to gauge nephrops populations and reef habitat. Number of deployments not recorded.
Data held at BODC 
Series/Profiles 
33  CTD/STD cast
Density of the water column
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Density of the water column
Electrical conductivity of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
7259532006-09-15 12:04 56° 57' 17" N  14° 5' 28" W  View metadata report for BODC series reference number 725953
7323602006-09-10 05:20 57° 31' 47" N  13° 24' 5" W  View metadata report for BODC series reference number 732360
7323722006-09-10 07:32 57° 29' 46" N  13° 38' 46" W  View metadata report for BODC series reference number 732372
7323842006-09-10 09:47 57° 28' 3" N  14° 0' 11" W  View metadata report for BODC series reference number 732384
7323962006-09-10 12:00 57° 39' 49" N  14° 8' 17" W  View metadata report for BODC series reference number 732396
7324032006-09-10 13:58 57° 47' 36" N  13° 58' 6" W  View metadata report for BODC series reference number 732403
7324152006-09-10 15:44 57° 41' 57" N  13° 47' 20" W  View metadata report for BODC series reference number 732415
7324272006-09-10 19:14 57° 55' 0" N  13° 38' 33" W  View metadata report for BODC series reference number 732427
7324392006-09-11 08:17 57° 41' 42" N  13° 20' 24" W  View metadata report for BODC series reference number 732439
7324402006-09-11 10:14 57° 40' 0" N  13° 30' 38" W  View metadata report for BODC series reference number 732440
7324522006-09-11 12:25 57° 29' 13" N  13° 32' 52" W  View metadata report for BODC series reference number 732452
7324642006-09-11 14:11 57° 23' 19" N  13° 38' 16" W  View metadata report for BODC series reference number 732464
7324762006-09-11 16:35 57° 22' 7" N  13° 34' 28" W  View metadata report for BODC series reference number 732476
7324882006-09-11 19:37 57° 15' 31" N  13° 36' 13" W  View metadata report for BODC series reference number 732488
7325072006-09-12 05:32 57° 10' 10" N  13° 30' 10" W  View metadata report for BODC series reference number 732507
7325192006-09-12 07:49 57° 13' 21" N  13° 44' 8" W  View metadata report for BODC series reference number 732519
7325202006-09-12 09:44 57° 21' 38" N  13° 48' 34" W  View metadata report for BODC series reference number 732520
7325322006-09-12 11:34 57° 17' 13" N  13° 52' 34" W  View metadata report for BODC series reference number 732532
7325442006-09-12 13:47 57° 6' 39" N  13° 47' 35" W  View metadata report for BODC series reference number 732544
7325562006-09-12 15:41 57° 0' 20" N  13° 52' 45" W  View metadata report for BODC series reference number 732556
7325682006-09-12 18:40 56° 58' 35" N  13° 42' 26" W  View metadata report for BODC series reference number 732568
7325812006-09-13 06:36 56° 28' 40" N  14° 41' 49" W  View metadata report for BODC series reference number 732581
7325932006-09-13 08:32 56° 35' 37" N  14° 34' 34" W  View metadata report for BODC series reference number 732593
7326002006-09-13 11:10 56° 36' 31" N  14° 42' 4" W  View metadata report for BODC series reference number 732600
7326122006-09-13 13:23 56° 46' 18" N  14° 43' 49" W  View metadata report for BODC series reference number 732612
7326242006-09-13 15:47 56° 49' 0" N  14° 26' 52" W  View metadata report for BODC series reference number 732624
7326362006-09-13 19:19 56° 46' 45" N  14° 16' 24" W  View metadata report for BODC series reference number 732636
7326482006-09-14 13:52 57° 26' 39" N  14° 14' 26" W  View metadata report for BODC series reference number 732648
7326612006-09-14 15:34 57° 22' 6" N  14° 6' 4" W  View metadata report for BODC series reference number 732661
7326732006-09-14 17:26 57° 15' 10" N  14° 7' 4" W  View metadata report for BODC series reference number 732673
7326852006-09-14 20:12 57° 9' 23" N  14° 10' 30" W  View metadata report for BODC series reference number 732685
7326972006-09-15 08:37 56° 48' 40" N  14° 4' 19" W  View metadata report for BODC series reference number 732697
7327042006-09-15 10:10 56° 48' 39" N  14° 10' 54" W  View metadata report for BODC series reference number 732704