Cruise inventory

RRS Charles Darwin CD85

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Charles Darwin (74AB)
Cruise identifierCD85
Cruise period1994-04-11 — 1994-05-07
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnBarry, United Kingdom
PurposeResearch
ObjectivesUK contribution to OMEX to quantify the biologically mediated cross-slope exchanges and vertical fluxes of biogenic material in the region of the Goban Spur.
Main Tasks:
1. 2 x SeaSoar survey to investigate hydrographic structure of region
2. Net sampling to study the data and night vertical distribution of macroplankton and micronekton.
3. Observe patterns of acoustic back-scatter using ship-borne ADCP; and 'sea-truthing' of data using LHPR net samples.
4. Asses marine snow distribution and abundance, using sediment trap moorings, cameras and large water bottles.
5. Evaluate cross-slope changes in phytoplankton and microzooplankton.
Chief scientistPhil Pugh (Institute of Oceanographic Sciences Deacon Laboratory)
ProjectOMEX II/MAST
Coordinating bodyEC
Cruise reportRRS Charles Darwin CD85 cruise report cd85.pdf — access key 'C' (1.47 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificNE Atlantic, Goban Spur 49-50N;11-13W;, St. H 49N;16.5W
Track chartsRRS Charles Darwin CD85 cruise track — trk4073a.html RRS Charles Darwin CD85 cruise track — trk4073b.html
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: continuous thermosalinograph surface measurements
BathythermographQuantity: number of profiles = 36
Description: XBTs - DRA system, T7 and a few T5 probes
Water bottle stationsQuantity: number of stations = 31
Description: 1 with S only)30l Niskins
Water bottle stationsQuantity: number of stations = 20
Description: 100l water bottles to collect marine snow
Water bottle stationsQuantity: number of stations = 18
Description: multisampler for microzooplankton collection on CTD
CTD stationsQuantity: number of stations = 18
Description: CTD and multisampler for microzooplankton collection
CTD stationsQuantity: number of stations = 30
Description: CTD and marine snow profiling camera
Subsurface temperature and salinity measurementsQuantity: number of surveys = 2
Description: 2 SeaSoar surveys, towed undulating CTD plus fluorometer
Current profiler (eg ADCP)Description: continuous shipborne ADCP
Chemical oceanography 
PhosphateQuantity: number of surveys = 2
Description: autoanalyser run in conj. w. SeaSoar surveys, surface
PhosphateQuantity: number of stations = 31
Description: 30l Niskins
NitrateQuantity: number of surveys = 2
Description: autoanalyser run in conj. w. SeaSoar surveys, surface
NitrateQuantity: number of stations = 31
Description: 30l Niskins
NitriteQuantity: activity duration in days = 4
Description: ng autoanalyser run in conj. w. SeaSoar surveys, surface
AmmoniaQuantity: activity duration in days = 4
SilicateQuantity: activity duration in days = 4
Description: OPALWCP7 Particulate opaline silica
SilicateQuantity: number of stations = 31
Description: 30l Niskins
RadioactivityQuantity: number of samples = 31
Description: 30l Niskins
Biology and fisheries 
Primary productivityQuantity: number of stations = 31
Description: 30l Niskins
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of experiments = 1
Description: MZCTDDTX Daily chlorophyll turnover by microzooplankton grazing
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 4
Description: CPHLFLP1 Fluorometric chlorophyll-a
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of surveys = 2
Description: SCHLFLPF Size-fractionated fluorometric chl-a
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of surveys = 2
Description: CPHLFLP4 Fluorometric chlorophyll-a
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 31
Description: 30l Niskins
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 3
Description: CPHLPR01 In-situ fluorometer chlorophyll
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of surveys = 2
Description: SCHLFLPB Size-fractionated fluorometric chl-a
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of surveys = 2
Description: 2 SeaSoar surveys, towed undulating CTD plus fluorometer
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: continuous fluorescence surface measurements
Particulate organic matter (inc POC, PON)Quantity: activity duration in days = 4
Description: CORGCAP1 Particulate organic carbon (acidified)
ZooplanktonQuantity: number of hauls = 12
Description: various vertical nets for zooplankton
ZooplanktonQuantity: number of deployments = 4
Description: Longhurst-Hardy plankton rec. for zooplank. to 'sea-truth' ADCP data
ZooplanktonQuantity: number of hauls = 28
Description: IOS RMT 1+8M towed multinet for microzooplankton and micronekton
ZooplanktonQuantity: number of hauls = 17
Description: Apstein vertical nets for microzooplankton
ZooplanktonQuantity: number of stations = 18
Description: multisampler for microzooplankton collection on CTD
SestonQuantity: number of stations = 20
Description: 100l water bottles to collect marine snow
SestonQuantity: number of deployments = 15
Description: CTD and marine snow profiling camera
NektonQuantity: number of hauls = 28
Description: IOS RMT 1+8M towed multinet for microzooplankton and micronekton
Other biological/fisheries measurementQuantity: number of profiles = 1
Description: MZBNMITX Total microzooplankton abundance (cell numbers)
Other biological/fisheries measurementQuantity: number of profiles = 1
Description: MZBCMITX Total microzooplankton biomass (expressed as carbon)
Other biological/fisheries measurementDescription: samples for phytoplankton species counts
Other biological/fisheries measurementQuantity: activity duration in days = 4
Description: PHAESPP1 Spectrophotometric phaeopigments (Lorenzen)
Moorings, landers, buoys 
Physical oceanography 
Current profiler (eg ADCP)49° 25' 0" N  11° 46' 59" W — moored ADCP laid 13 April, rec. 26 April
Biology and fisheries 
Primary productivity49° 10' 0" N  12° 46' 0" W — drifting prim. prod. rig depl. during daylight, 18 Apr
Primary productivity49° 31' 0" N  11° 28' 59" W — drifting prim. prod. rig depl. during daylight 1 May
Primary productivity49° 16' 0" N  12° 15' 0" W — drifting prim. prod. rig depl. during daylight 21 Apr
Sediment traps49° 10' 59" N  12° 49' 0" W — OMEX2 sediment trap mooring, rec. & redepl.
Sediment traps49° 25' 0" N  11° 31' 59" W — OMEX1 sediment trap mooring, laid Jan 94, not found
Sediment traps48° 58' 0" N  16° 28' 59" W — replacement IOS sediment trap mooring laid
Sediment traps48° 58' 59" N  16° 22' 0" W — IOS sediment trap mooring, laid Sept 92, release fired, but no mooring
Data held at BODC 
Series/Profiles 
55  Bottle station
Quality control flags
Ammonium and ammonia concentration parameters in water bodies
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Vertical spatial coordinates
Carotenoid and flavenoid pigment concentrations in water bodies
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Quality control flags
Ammonium and ammonia concentration parameters in water bodies
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Vertical spatial coordinates
Carotenoid and flavenoid pigment concentrations in water bodies
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column

BODC idDate/TimeLocationDoc.
12824041994-04-27 05:54 49° 30' 43" N  10° 58' 45" W  View metadata report for BODC series reference number 1282404
12824161994-05-01 05:23 49° 31' 23" N  11° 28' 27" W  View metadata report for BODC series reference number 1282416
12679051994-04-16 04:58 49° 23' 57" N  12° 48' 44" W  View metadata report for BODC series reference number 1267905
12679171994-04-18 02:18 49° 8' 26" N  12° 47' 2" W  View metadata report for BODC series reference number 1267917
12679291994-04-18 23:42 49° 7' 48" N  12° 49' 11" W  View metadata report for BODC series reference number 1267929
12679301994-04-21 01:06 49° 10' 37" N  12° 20' 53" W  View metadata report for BODC series reference number 1267930
12679421994-04-22 02:41 49° 12' 11" N  12° 15' 5" W  View metadata report for BODC series reference number 1267942
12679541994-04-23 02:31 49° 25' 9" N  11° 33' 59" W  View metadata report for BODC series reference number 1267954
12679661994-04-23 04:20 49° 24' 55" N  11° 35' 22" W  View metadata report for BODC series reference number 1267966
12679781994-04-25 04:44 49° 20' 19" N  11° 38' 19" W  View metadata report for BODC series reference number 1267978
12679911994-04-26 04:38 49° 22' 0" N  11° 36' 29" W  View metadata report for BODC series reference number 1267991
12680051994-04-26 05:00 49° 22' 11" N  11° 36' 16" W  View metadata report for BODC series reference number 1268005
12680171994-04-26 06:50 49° 23' 3" N  11° 35' 27" W  View metadata report for BODC series reference number 1268017
12680291994-04-27 03:50 49° 30' 19" N  10° 59' 39" W  View metadata report for BODC series reference number 1268029
12680301994-04-27 23:23 49° 25' 42" N  11° 14' 44" W  View metadata report for BODC series reference number 1268030
12680421994-04-30 04:03 49° 5' 48" N  13° 17' 53" W  View metadata report for BODC series reference number 1268042
12680541994-05-01 04:15 49° 31' 5" N  11° 28' 53" W  View metadata report for BODC series reference number 1268054
12680661994-05-02 04:59 49° 19' 48" N  11° 23' 54" W  View metadata report for BODC series reference number 1268066
12680781994-05-02 06:48 49° 20' 7" N  11° 24' 34" W  View metadata report for BODC series reference number 1268078
16901071994-04-16 04:58 49° 23' 57" N  12° 48' 44" W  View metadata report for BODC series reference number 1690107
16901191994-04-18 02:18 49° 8' 26" N  12° 47' 2" W  View metadata report for BODC series reference number 1690119
16901201994-04-18 23:42 49° 7' 48" N  12° 49' 11" W  View metadata report for BODC series reference number 1690120
16901321994-04-21 01:06 49° 10' 37" N  12° 20' 53" W  View metadata report for BODC series reference number 1690132
16901441994-04-23 04:20 49° 24' 55" N  11° 35' 22" W  View metadata report for BODC series reference number 1690144
16901561994-04-25 04:44 49° 20' 19" N  11° 38' 19" W  View metadata report for BODC series reference number 1690156
16901681994-04-26 04:38 49° 22' 0" N  11° 36' 29" W  View metadata report for BODC series reference number 1690168
16901811994-04-27 03:50 49° 30' 19" N  10° 59' 39" W  View metadata report for BODC series reference number 1690181
16901931994-04-27 23:23 49° 25' 42" N  11° 14' 44" W  View metadata report for BODC series reference number 1690193
16902001994-04-30 04:03 49° 5' 48" N  13° 17' 53" W  View metadata report for BODC series reference number 1690200
16902121994-05-01 04:15 49° 31' 5" N  11° 28' 53" W  View metadata report for BODC series reference number 1690212
16902241994-05-02 04:59 49° 19' 48" N  11° 23' 54" W  View metadata report for BODC series reference number 1690224
16801131994-04-18 06:50 49° 10' 10" N  12° 46' 30" W  View metadata report for BODC series reference number 1680113
16801251994-04-20 12:15 49° 7' 3" N  12° 23' 37" W  View metadata report for BODC series reference number 1680125
16801371994-04-20 12:58 49° 7' 4" N  12° 23' 28" W  View metadata report for BODC series reference number 1680137
16801491994-04-20 13:03 49° 7' 3" N  12° 23' 27" W  View metadata report for BODC series reference number 1680149
16801501994-04-22 02:41 49° 12' 11" N  12° 15' 5" W  View metadata report for BODC series reference number 1680150
16801621994-04-22 20:24 49° 21' 1" N  11° 49' 44" W  View metadata report for BODC series reference number 1680162
16801741994-04-23 02:31 49° 25' 9" N  11° 33' 59" W  View metadata report for BODC series reference number 1680174
16801861994-04-26 05:00 49° 22' 11" N  11° 36' 16" W  View metadata report for BODC series reference number 1680186
16801981994-04-26 06:50 49° 23' 3" N  11° 35' 27" W  View metadata report for BODC series reference number 1680198
16802051994-04-27 03:50 49° 30' 19" N  10° 59' 39" W  View metadata report for BODC series reference number 1680205
16802171994-04-27 23:23 49° 25' 42" N  11° 14' 44" W  View metadata report for BODC series reference number 1680217
16802291994-04-30 04:03 49° 5' 48" N  13° 17' 53" W  View metadata report for BODC series reference number 1680229
16802301994-05-01 04:15 49° 31' 5" N  11° 28' 53" W  View metadata report for BODC series reference number 1680230
16802421994-05-02 06:48 49° 20' 7" N  11° 24' 34" W  View metadata report for BODC series reference number 1680242
16802541994-05-02 22:50 49° 29' 36" N  10° 59' 27" W  View metadata report for BODC series reference number 1680254
16802661994-05-05 12:06 49° 33' 46" N  11° 7' 6" W  View metadata report for BODC series reference number 1680266
16651651994-04-18 03:40 49° 8' 40" N  12° 47' 11" W  View metadata report for BODC series reference number 1665165
16651771994-04-18 06:02 49° 9' 54" N  12° 46' 5" W  View metadata report for BODC series reference number 1665177
16651891994-04-27 05:54 49° 30' 43" N  10° 58' 45" W  View metadata report for BODC series reference number 1665189
16651901994-04-27 06:38 49° 30' 49" N  10° 58' 7" W  View metadata report for BODC series reference number 1665190
16652081994-04-30 02:30 49° 5' 4" N  13° 18' 4" W  View metadata report for BODC series reference number 1665208
16695111994-05-01 05:23 49° 31' 23" N  11° 28' 27" W  View metadata report for BODC series reference number 1669511
16520931994-04-23 02:31 49° 25' 9" N  11° 33' 59" W  View metadata report for BODC series reference number 1652093
16521001994-04-30 04:03 49° 5' 48" N  13° 17' 53" W  View metadata report for BODC series reference number 1652100
30  CTD/STD cast
Density of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Density of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
8872331994-04-22 16:36 49° 25' 47" N  11° 46' 42" W  View metadata report for BODC series reference number 887233
8872451994-04-22 17:05 49° 25' 43" N  11° 46' 35" W  View metadata report for BODC series reference number 887245
8872571994-04-22 21:33 49° 21' 9" N  11° 49' 32" W  View metadata report for BODC series reference number 887257
8872691994-04-23 01:13 49° 25' 2" N  11° 33' 15" W  View metadata report for BODC series reference number 887269
8872701994-04-23 06:02 49° 24' 13" N  11° 36' 35" W  View metadata report for BODC series reference number 887270
8872821994-04-25 21:50 49° 21' 17" N  11° 36' 54" W  View metadata report for BODC series reference number 887282
8872941994-04-15 00:25 49° 16' 18" N  12° 13' 49" W  View metadata report for BODC series reference number 887294
8873011994-04-18 03:36 49° 8' 40" N  12° 47' 11" W  View metadata report for BODC series reference number 887301
8873131994-04-18 05:53 49° 9' 54" N  12° 46' 4" W  View metadata report for BODC series reference number 887313
8873251994-04-18 21:15 49° 7' 58" N  12° 49' 19" W  View metadata report for BODC series reference number 887325
8873371994-04-20 09:59 49° 7' 7" N  12° 23' 52" W  View metadata report for BODC series reference number 887337
8873491994-04-23 05:38 49° 24' 20" N  11° 36' 25" W  View metadata report for BODC series reference number 887349
8873501994-04-26 05:18 49° 22' 25" N  11° 36' 0" W  View metadata report for BODC series reference number 887350
8873621994-04-16 06:51 49° 25' 17" N  12° 46' 35" W  View metadata report for BODC series reference number 887362
8873741994-05-02 21:16 49° 29' 34" N  10° 59' 24" W  View metadata report for BODC series reference number 887374
8873861994-05-05 04:01 49° 34' 4" N  11° 10' 37" W  View metadata report for BODC series reference number 887386
8873981994-05-05 12:46 49° 33' 45" N  11° 7' 2" W  View metadata report for BODC series reference number 887398
8874051994-04-27 06:36 49° 30' 49" N  10° 58' 7" W  View metadata report for BODC series reference number 887405
8874171994-04-27 22:20 49° 26' 13" N  11° 14' 42" W  View metadata report for BODC series reference number 887417
8874291994-04-30 03:09 49° 5' 23" N  13° 18' 0" W  View metadata report for BODC series reference number 887429
8874301994-04-22 00:57 49° 11' 45" N  12° 14' 31" W  View metadata report for BODC series reference number 887430
8874421994-04-26 06:16 49° 22' 48" N  11° 35' 36" W  View metadata report for BODC series reference number 887442
8874541994-04-27 00:24 49° 27' 51" N  11° 11' 13" W  View metadata report for BODC series reference number 887454
8874661994-04-27 05:37 49° 30' 43" N  10° 58' 45" W  View metadata report for BODC series reference number 887466
8874781994-04-27 21:15 49° 26' 27" N  11° 14' 51" W  View metadata report for BODC series reference number 887478
8874911994-04-30 02:24 49° 5' 4" N  13° 18' 4" W  View metadata report for BODC series reference number 887491
8875091994-05-01 05:08 49° 31' 23" N  11° 28' 27" W  View metadata report for BODC series reference number 887509
8875101994-05-02 05:29 49° 19' 48" N  11° 24' 7" W  View metadata report for BODC series reference number 887510
8875221994-05-02 06:20 49° 19' 53" N  11° 24' 24" W  View metadata report for BODC series reference number 887522
8875341994-04-21 01:50 49° 10' 29" N  12° 20' 58" W  View metadata report for BODC series reference number 887534
2  Paddle wheel current meter
Transmittance and attenuance of the water column
Electrical conductivity of the water column
Salinity of the water column
Horizontal velocity of the water column (currents)
Temperature of the water column
Date and time
Transmittance and attenuance of the water column
Electrical conductivity of the water column
Salinity of the water column
Horizontal velocity of the water column (currents)
Temperature of the water column
Date and time

BODC idDate/TimeLocationDoc.
4443211994-04-18 13:56  — 1994-09-16 09:57 49° 11' 11" N  12° 49' 9" W  View metadata report for BODC series reference number 444321
4443081994-04-18 14:04  — 1994-09-16 09:04:59 49° 11' 11" N  12° 49' 9" W  View metadata report for BODC series reference number 444308
1  Pumped water sample
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Phaeopigment concentrations in the water column
Date and time
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Phaeopigment concentrations in the water column
Date and time

BODC idDate/TimeLocationDoc.
16762551994-04-13 17:15  — 1994-05-04 23:30 49° 5' 49" N  12° 43' 55" W — 49° 30' 48" N  10° 58' 26" W  View metadata report for BODC series reference number 1676255
Discrete samples 
24  CTD frame plus rosette samplerAmmonium and ammonia concentration parameters in water bodies
Phytoplankton generic biomass in water bodies
Particulate total and organic carbon concentrations in the water column
Density of the water column
Concentration of silicon species in the water column
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Salinity of the water column
Microzooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column
Carotenoid and flavenoid pigment concentrations in water bodies
Nitrate concentration parameters in the water column
Temperature of the water column
Phaeopigment concentrations in the water column
Phytoplankton generic abundance in water bodies
Microzooplankton generic abundance in water bodies
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
1  Instrument mooringSedimentation flux of carbon, nitrogen or organic matter in the water column
Sedimentation flux of alkenones and alkenoates in the water column
Stable isotope enrichment in the water column
Sedimentation flux of pigments in the water column
Sedimentation flux of non-metallic inorganic species in the water column
Sedimentation flux of identified biota in the water column
Sediment grain size parameters
Sedimentation flux of metallic and metalloid elements and isotopes in water bodies
Sedimentation flux quantification in the water column
68  RMT multiple zooplankton net towZooplankton taxonomy-related abundance per unit volume of the water column
Zooplankton carbon biomass per unit area of the water column
37  Sample taken from ship's non-toxic supplyChlorophyll pigment concentrations in water bodies
Salinity of the water column
Phaeopigment concentrations in the water column
25  Water bottle hydrocastAmmonium and ammonia concentration parameters in water bodies
Particulate total and organic carbon concentrations in the water column
Primary production in the water column
Concentration of silicon species in the water column
Chlorophyll pigment concentrations in water bodies
Phytoplankton taxonomic abundance in water bodies
Uptake of other nutrients in the water column
Metadata parameters
Silicate concentration parameters in the water column
Microzooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column
Carotenoid and flavenoid pigment concentrations in water bodies
Microzooplankton grazing
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Regenerated production in water bodies
Microzooplankton generic abundance in water bodies
Nitrite concentration parameters in the water column
New production in water bodies
Phosphate concentration parameters in the water column