Resources

RRS James Clark Ross JR18007

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR18007
Cruise period2019-08-04 — 2019-09-06
StatusCompleted
Port of departureAberdeen, United Kingdom
Port of returnAberdeen, United Kingdom
PurposeResearch
ObjectivesResearch summary for DIAPOD NERC Changing Arctic Ocean programme: Copepod species of the genus Calanus (Calanus hereafter) are rice grain size crustaceans that occur throughout the Arctic Ocean consuming enormous quantities of phytoplankton. These tiny animals represent the primary food source for many Arctic fish, seabirds and whales. During early spring, they gorge on extensive seasonal blooms of diatoms, fat-rich phytoplankton that proliferates both beneath the sea ice and in the open ocean. This allows Calanus to rapidly obtain sufficient fate to survive during the many months of food scarcity during the Arctic winter. Diatoms also produce on the main marine omega-3 polyunsaturated fatty acids that Calanus require to successfully survive and reproduce in the frozen Arctic waters. Calanus seasonally migrate into deep waters to save energy and reduce their losses to predation in an overwintering process called diapause that is fuelled entirely by carbon rich fat (lipids). This vertical lipid pump transfers vast quantities of carbon in the oceans interior and ultimate presents the drawdown of atmospheric carbon dioxide. Continued global warming throughout the 21st century is expected to exert a strong influence on the timing, magnitude and spatial distribution of diatom productivity in the Arctic Ocean. Little is known about how Calanus will respond to these changes, making it difficult to understand how the wider Arctic ecosystem and its biogeochemistry will be affected by climate change. The overarching goal of this project is to develop a predictive understanding of how Calanus in the Arctic will be affected by future climate change. At each station, a series of activities will provide samples to address the objectives of DIAPOD. Specifically, a series of nets (including Bongo opening-closing, Hydrobios and ring nets) will be deployed to different depth horizons to study the depth distribution of Calanus and collect specimens.
Chief scientistDavid Pond (University of Stirling, Institute of Aquaculture)
ProjectChanging Arctic Ocean (CAO)
Cruise reportRRS James Clark Ross JR18007 cruise report jr18007.pdf (7.55 MB) 
Ocean/sea areas 
GeneralGreenland Sea
SpecificFram Strait
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 34
Description: Navigation, bathymetry, meteorological and surface hydrography continuous measurements
CTD stationsQuantity: number of stations = 48
Description: 48 CTD casts: pressure, temperaturem salinitym conductivity, PAR, fluorometry, beam transmission, beam attenuation
Chemical oceanography 
Other dissolved gasesQuantity: number of stations = 6
Description: CTD water samples for DMS and molecular DNA
Other dissolved gasesQuantity: number of stations = 6
Description: CTD water samples for CO, DMS, CDOM, DNA, pigments
NitrateQuantity: number of stations = 15
Description: CTD water samples for macronutrient determination
NitrateQuantity: number of stations = 6
Description: CTD water samples for primary productivity, bacterial productivity, extracellular enzyma activity, and nutrients
NitriteQuantity: number of stations = 15
Description: CTD water samples for macronutrient determination
NitriteQuantity: number of stations = 6
Description: CTD water samples for primary productivity, bacterial productivity, extracellular enzyma activity, and nutrients
AmmoniaQuantity: number of stations = 15
Description: CTD water samples for macronutrient determination
AmmoniaQuantity: number of stations = 6
Description: CTD water samples for primary productivity, bacterial productivity, extracellular enzyma activity, and nutrients
SilicateQuantity: number of stations = 15
Description: CTD water samples for macronutrient determination
SilicateQuantity: number of stations = 6
Description: CTD water samples for primary productivity, bacterial productivity, extracellular enzyma activity, and nutrients
AlkalinityQuantity: number of stations = 6
Description: CTD water samples for Alkalinity, carbonate system, DNA, pigments, DOC determination, trace gases
IsotopesQuantity: number of stations = 9
Description: CTD water samples for stable isotope analysis
Other chemical oceanographic measurementsQuantity: number of stations = 6
Description: CTD water samples for Alkalinity, carbonate system, DNA, pigments, DOC determination, trace gases
Contamination 
Contaminants in organismsQuantity: number of stations = 6
Description: CTD water samples for zooplankton community compositon and microplastics
Biology and fisheries 
Primary productivityQuantity: number of stations = 6
Description: CTD water samples for primary productivity, bacterial productivity, extracellular enzyma activity, and nutrients
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 6
Description: CTD water samples for CO, DMS, CDOM, DNA, pigments
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 6
Description: CTD water samples for Alkalinity, carbonate system, DNA, pigments, DOC determination, trace gases
Particulate organic matter (inc POC, PON)Quantity: number of stations = 6
Description: CTD water samples for Alkalinity, carbonate system, DNA, pigments, DOC determination, trace gases
Dissolved organic matter (inc DOC)Quantity: number of stations = 6
Description: CTD water samples for CO, DMS, CDOM, DNA, pigments
Biochemical measurements (eg lipids, amino acids)Quantity: number of hauls = 20
Description: Net hauls for metabolomics
Biochemical measurements (eg lipids, amino acids)Quantity: number of stations = 18
Description: CTD water samples for fatty acids, pigments and lugols
Biochemical measurements (eg lipids, amino acids)Quantity: number of stations = 13
Description: CTD water samples for Biogenic gels and microbial community
ZooplanktonQuantity: number of hauls = 8
Description: Net hauls for zooplankton experiments
ZooplanktonQuantity: number of hauls = 11
Description: Net hauls for biomass dominance of calanus species through different depth stratta, lipid sac volumes
ZooplanktonQuantity: number of hauls = 5
Description: Net hauls for copepod grazing incubations
ZooplanktonQuantity: number of hauls = 8
Description: Net hauls for zooplankton
ZooplanktonQuantity: number of hauls = 21
Description: Net hauls for circadian rythm experiments
ZooplanktonQuantity: number of hauls = 29
Description: Net hauls for zooplankton and grazing data, species composition
ZooplanktonQuantity: number of stations = 6
Description: CTD water samples for zooplankton community compositon and microplastics
ZooplanktonQuantity: number of stations = 5
Description: CTD water samples for TLC (Tauring lipids)
SestonQuantity: number of stations = 18
Description: CTD water samples for fatty acids, pigments and lugols
SestonQuantity: number of stations = 21
Description: CTD water samples for copepod grazing incubations
NeustonQuantity: number of stations = 16
Description: CTD water samples for chlorophyll determination at 2 depths in the water column (chl maximum and surface)
Eggs and larvaeQuantity: number of hauls = 21
Description: Net hauls for egg production determination
Pelagic bacteria/micro-organismsQuantity: number of stations = 6
Description: CTD water samples for primary productivity, bacterial productivity, extracellular enzyma activity, and nutrients
Pelagic bacteria/micro-organismsQuantity: number of stations = 13
Description: CTD water samples for Biogenic gels and microbial community
Other biological/fisheries measurementQuantity: number of stations = 6
Description: CTD water samples for Alkalinity, carbonate system, DNA, pigments, DOC determination, trace gases
Other biological/fisheries measurementQuantity: number of stations = 6
Description: CTD water samples for CO, DMS, CDOM, DNA, pigments
Other biological/fisheries measurementQuantity: number of stations = 6
Description: CTD water samples for DMS and molecular DNA
Other biological/fisheries measurementQuantity: number of stations = 6
Description: CTD water samples for primary productivity, bacterial productivity, extracellular enzyma activity, and nutrients
Meteorology 
Other meteorological measurementsQuantity: activity duration in days = 34
Description: Navigation, bathymetry, meteorological and surface hydrography continuous measurements
Data held at BODC Get data
Series/Profiles 
27  Bottle station
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Vertical spatial coordinates
Dissolved oxygen parameters in the water column
Silicate concentration parameters in the water column
Ammonium and ammonia concentration parameters in water bodies
Nitrate concentration parameters in the water column
Quality control flags
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Vertical spatial coordinates
Dissolved oxygen parameters in the water column
Silicate concentration parameters in the water column
Ammonium and ammonia concentration parameters in water bodies
Nitrate concentration parameters in the water column
Quality control flags

BODC idDate/TimeLocationDoc.
20017782019-08-14 03:52 79° 0' 0" N  3° 19' 59" E  View metadata report for BODC series reference number 2001778
20535242019-08-26 01:27:30 77° 43' 0" N  7° 34' 59" E  View metadata report for BODC series reference number 2053524
20017422019-08-09 02:00 75° 20' 8" N  5° 27' 51" W  View metadata report for BODC series reference number 2001742
20018462019-08-24 01:01 79° 19' 0" N  2° 38' 57" E  View metadata report for BODC series reference number 2001846
20018582019-08-25 04:07 78° 24' 59" N  6° 59' 59" E  View metadata report for BODC series reference number 2001858
20534322019-08-15 23:44:30 78° 19' 29" N  4° 44' 23" W  View metadata report for BODC series reference number 2053432
20017542019-08-10 02:31 75° 47' 44" N  7° 13' 8" W  View metadata report for BODC series reference number 2001754
20017912019-08-15 23:45 78° 19' 29" N  4° 44' 23" W  View metadata report for BODC series reference number 2001791
20018092019-08-17 00:55 78° 19' 1" N  0° 36' 57" E  View metadata report for BODC series reference number 2001809
20018712019-08-26 01:28 77° 43' 0" N  7° 34' 59" E  View metadata report for BODC series reference number 2001871
20534442019-08-17 00:55 78° 19' 1" N  0° 36' 57" E  View metadata report for BODC series reference number 2053444
20534932019-08-23 00:16:30 79° 9' 59" N  6° 35' 59" E  View metadata report for BODC series reference number 2053493
20018102019-08-18 01:07 79° 19' 59" N  5° 10' 1" E  View metadata report for BODC series reference number 2001810
20018222019-08-19 23:34 79° 39' 59" N  9° 23' 58" E  View metadata report for BODC series reference number 2001822
20018342019-08-23 00:17 79° 9' 59" N  6° 35' 59" E  View metadata report for BODC series reference number 2001834
20534202019-08-15 04:16 78° 46' 43" N  0° 29' 40" W  View metadata report for BODC series reference number 2053420
20533762019-08-09 01:59:30 75° 20' 8" N  5° 27' 51" W  View metadata report for BODC series reference number 2053376
20533882019-08-10 02:30:30 75° 47' 44" N  7° 13' 8" W  View metadata report for BODC series reference number 2053388
20534072019-08-11 01:05 76° 2' 7" N  8° 8' 39" W  View metadata report for BODC series reference number 2053407
20534562019-08-18 01:07 79° 19' 59" N  5° 10' 1" E  View metadata report for BODC series reference number 2053456
20534682019-08-18 23:41 79° 35' 59" N  7° 19' 55" E  View metadata report for BODC series reference number 2053468
20534812019-08-19 23:33:30 79° 39' 59" N  9° 23' 58" E  View metadata report for BODC series reference number 2053481
20535362019-08-26 21:36 77° 28' 0" N  13° 29' 36" E  View metadata report for BODC series reference number 2053536
20017662019-08-11 01:05 76° 2' 7" N  8° 8' 39" W  View metadata report for BODC series reference number 2001766
20534192019-08-14 03:51:30 79° 0' 0" N  3° 19' 59" E  View metadata report for BODC series reference number 2053419
20535002019-08-24 01:01 79° 19' 0" N  2° 38' 57" E  View metadata report for BODC series reference number 2053500
20535122019-08-25 04:07 78° 24' 59" N  6° 59' 59" E  View metadata report for BODC series reference number 2053512
48  CTD/STD cast
Visible waveband radiance and irradiance measurements in the atmosphere
Reference numbers
Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Dissolved oxygen parameters in the water column
Raw oxygen sensor output
Density of the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Visible waveband radiance and irradiance measurements in the atmosphere
Reference numbers
Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Dissolved oxygen parameters in the water column
Raw oxygen sensor output
Density of the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
19811192019-08-11 04:52:32 76° 2' 6" N  8° 9' 1" W  View metadata report for BODC series reference number 1981119
19811562019-08-14 21:13:03 78° 54' 54" N  0° 17' 18" W  View metadata report for BODC series reference number 1981156
19812732019-08-18 00:00:52 79° 19' 59" N  5° 10' 2" E  View metadata report for BODC series reference number 1981273
19813412019-08-20 12:26:25 79° 54' 14" N  8° 53' 31" E  View metadata report for BODC series reference number 1981341
19814332019-08-24 03:58:40 79° 19' 1" N  2° 38' 57" E  View metadata report for BODC series reference number 1981433
19813532019-08-20 13:32:46 79° 55' 15" N  8° 51' 8" E  View metadata report for BODC series reference number 1981353
19810152019-08-08 21:02:34 75° 20' 8" N  5° 27' 52" W  View metadata report for BODC series reference number 1981015
19810402019-08-09 21:08:18 75° 47' 43" N  7° 13' 9" W  View metadata report for BODC series reference number 1981040
19812612019-08-17 21:05:06 79° 19' 59" N  5° 10' 1" E  View metadata report for BODC series reference number 1981261
19813162019-08-19 21:06:10 79° 40' 0" N  9° 23' 58" E  View metadata report for BODC series reference number 1981316
19811812019-08-15 03:58:43 78° 47' 1" N  0° 28' 58" W  View metadata report for BODC series reference number 1981181
19812002019-08-15 23:18:01 78° 19' 49" N  4° 43' 38" W  View metadata report for BODC series reference number 1981200
19813042019-08-18 23:10:28 79° 35' 59" N  7° 19' 56" E  View metadata report for BODC series reference number 1981304
19813772019-08-20 22:03:18 79° 9' 59" N  6° 35' 59" E  View metadata report for BODC series reference number 1981377
19810762019-08-10 21:08:03 76° 2' 19" N  8° 5' 42" W  View metadata report for BODC series reference number 1981076
19811072019-08-11 03:08:21 76° 2' 6" N  8° 9' 1" W  View metadata report for BODC series reference number 1981107
19811322019-08-13 22:23:53 78° 59' 59" N  3° 20' 1" E  View metadata report for BODC series reference number 1981132
19812122019-08-16 01:36:47 78° 18' 6" N  4° 46' 54" W  View metadata report for BODC series reference number 1981212
19812242019-08-16 03:55:58 78° 16' 18" N  4° 48' 28" W  View metadata report for BODC series reference number 1981224
19812362019-08-16 21:08:07 78° 19' 1" N  0° 36' 58" E  View metadata report for BODC series reference number 1981236
19814082019-08-23 21:07:53 79° 19' 1" N  2° 38' 57" E  View metadata report for BODC series reference number 1981408
19814452019-08-24 06:12:58 79° 19' 1" N  2° 38' 57" E  View metadata report for BODC series reference number 1981445
19810272019-08-09 00:43:26 75° 20' 7" N  5° 27' 51" W  View metadata report for BODC series reference number 1981027
19810522019-08-10 01:28:31 75° 47' 43" N  7° 13' 9" W  View metadata report for BODC series reference number 1981052
19810882019-08-11 00:18:30 76° 2' 9" N  8° 8' 12" W  View metadata report for BODC series reference number 1981088
19811932019-08-15 21:05:14 78° 21' 49" N  4° 38' 35" W  View metadata report for BODC series reference number 1981193
19812482019-08-16 23:40:30 78° 19' 1" N  0° 36' 57" E  View metadata report for BODC series reference number 1981248
19813892019-08-22 21:05:21 79° 9' 59" N  6° 35' 59" E  View metadata report for BODC series reference number 1981389
19814702019-08-25 21:30:35 77° 43' 0" N  7° 34' 59" E  View metadata report for BODC series reference number 1981470
19814942019-08-26 21:17:26 77° 28' 0" N  13° 29' 36" E  View metadata report for BODC series reference number 1981494
19810032019-08-07 13:22:18 69° 31' 23" N  2° 55' 25" W  View metadata report for BODC series reference number 1981003
19810642019-08-10 14:40:13 75° 56' 58" N  7° 48' 59" W  View metadata report for BODC series reference number 1981064
19811442019-08-14 02:40:25 79° 0' 0" N  3° 19' 59" E  View metadata report for BODC series reference number 1981144
19812852019-08-18 12:33:27 79° 22' 9" N  4° 50' 28" E  View metadata report for BODC series reference number 1981285
19812972019-08-18 21:06:51 79° 35' 59" N  7° 19' 58" E  View metadata report for BODC series reference number 1981297
19813902019-08-22 23:27:52 79° 9' 59" N  6° 35' 59" E  View metadata report for BODC series reference number 1981390
19814212019-08-23 23:12:15 79° 19' 1" N  2° 38' 57" E  View metadata report for BODC series reference number 1981421
19814572019-08-25 00:33:41 78° 25' 0" N  6° 59' 59" E  View metadata report for BODC series reference number 1981457
19814692019-08-25 02:48:39 78° 25' 0" N  7° 0' 0" E  View metadata report for BODC series reference number 1981469
19815012019-08-26 23:13:27 77° 28' 0" N  13° 29' 37" E  View metadata report for BODC series reference number 1981501
19815132019-08-27 01:03:12 77° 28' 0" N  13° 29' 36" E  View metadata report for BODC series reference number 1981513
19809882019-08-07 11:20:28 69° 31' 23" N  2° 55' 25" W  View metadata report for BODC series reference number 1980988
19810392019-08-09 14:30:51 75° 38' 32" N  6° 37' 36" W  View metadata report for BODC series reference number 1981039
19811202019-08-12 14:17:58 79° 0' 0" N  3° 19' 50" E  View metadata report for BODC series reference number 1981120
19811682019-08-14 23:49:46 78° 52' 15" N  0° 19' 1" W  View metadata report for BODC series reference number 1981168
19813282019-08-19 23:12:50 79° 39' 59" N  9° 23' 58" E  View metadata report for BODC series reference number 1981328
19813652019-08-20 16:25:28 79° 56' 4" N  8° 37' 10" E  View metadata report for BODC series reference number 1981365
19814822019-08-25 23:43:59 77° 43' 0" N  7° 34' 59" E  View metadata report for BODC series reference number 1981482
1  Meteorological data logger
Visible waveband radiance and irradiance measurements in the atmosphere
Reference numbers
Horizontal spatial co-ordinates
Air pressure
Date and time
Air temperature
Wind strength and direction
Solar Radiation
Atmospheric humidity
Visible waveband radiance and irradiance measurements in the atmosphere
Reference numbers
Horizontal spatial co-ordinates
Air pressure
Date and time
Air temperature
Wind strength and direction
Solar Radiation
Atmospheric humidity

BODC idDate/TimeLocationDoc.
20145982019-08-05 07:19  — 2019-08-29 12:01 59° 31' 40" N  8° 29' 10" W — 79° 56' 22" N  15° 35' 32" E  View metadata report for BODC series reference number 2014598
1  Multiple instrument types
Reference numbers
Horizontal spatial co-ordinates
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Metadata parameters
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Reference numbers
Horizontal spatial co-ordinates
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Metadata parameters
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
20146052019-08-05 07:19  — 2019-08-29 12:01 59° 31' 40" N  8° 29' 10" W — 79° 56' 22" N  15° 35' 32" E  View metadata report for BODC series reference number 2014605
1  Single-beam echosounder
Reference numbers
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation
Reference numbers
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation

BODC idDate/TimeLocationDoc.
20145862019-08-05 07:19  — 2019-08-29 12:01 59° 31' 40" N  8° 29' 10" W — 79° 56' 22" N  15° 35' 32" E  View metadata report for BODC series reference number 2014586
Discrete samples 
48  CTD frame plus rosette sampler
73  Sample taken from ship's non-toxic supply