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RRS James Clark Ross JR17005

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR17005
Cruise period2018-05-08 — 2018-06-08
StatusCompleted
Port of departureImmingham, United Kingdom
Port of returnLongyearbyen, Svalbard and Jan Mayen
PurposeResearch
ObjectivesThe activities associated with research cruise JR17005 cover two NERC Changing Arctic Ocean projects: DIAPOD and ARISE

At each station, a series of activities were undertaken to provide samples to address the objectives of both DIAPOD and ARISE. Specifically, for DIAPOD, a series of nets (including Bongo opening closing, Mocness and ring nets) will be deployed to different depth horizons to study the depth distribution of Calanus and collect specimens for identification, lipids and determination of key metabolic rates (e.g. respiration and grazing). Subsamples of Calanus were collected for ARISE for biomarker analysis. CTD deployments collected complimentary data on phytoplankton biomass and community structure. A second full depth CTD was used to determine the vertical profile in stable isotopes of dissolved and particulate material, focusing on water mass end members and key oceanographic features. Standalone pumps collected large quantities of particulate material for biomarker analysis. Finally, a megacorer will be deployed to collect a sediment core to quantify the influence of terrestrial material on the Arctic marine ecosystem.
Chief scientistDavid Pond (University of Stirling, Institute of Aquaculture)
ProjectChanging Arctic Ocean
Coordinating bodyNatural Environment Research Council (NERC)
Ocean/sea areas 
GeneralGreenland Sea
Arctic Ocean
SpecificFram Strait
Track chartsRRS James Clark Ross JR17005 cruise track — jr17005trk.pdf (0.67 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of samples = 37
Description: Underway salinity calibration water samples
Surface measurements underway (T,S)Quantity: activity duration in days = 26
Description: Continuous underway data from ships surface hydrography instrumentation (temperature, salinity, chlorophyll-a fluorescence, transmission)
Water bottle stationsQuantity: number of samples = 171
Description: CTD salinity sensor calibration water samples
CTD stationsQuantity: number of profiles = 72
Description: CTD profiles (temperature, salinity, PAR, Oxygen, Chlorophyll-a, transmission)
Current profiler (eg ADCP)Quantity: number of profiles = 71
Description: Lowered Acoustic Doppler Current Profiler (ADCP) profiles
Current profiler (eg ADCP)Quantity: activity duration in days = 29
Description: Vessel Mounted Acoustic Doppler Current Profiler (ADCP)
Chemical oceanography 
OxygenQuantity: number of profiles = 29
Description: CTD water samples for dissolved oxygen titrations collected from CTD casts.
Carbon dioxideQuantity: number of profiles = 40
Description: CTD water samples for d15N isotopes, Dissolved Inorganic Carbon (DIC), silicate isotopes and biogenic silica
PhosphateQuantity: number of profiles = 40
Description: CTD water samples for silicate, nitrate, nitrite, ammonium, phosphate nutrient analysis
NitrateQuantity: number of profiles = 40
Description: CTD water samples for silicate, nitrate, nitrite, ammonium, phosphate nutrient analysis
NitriteQuantity: number of profiles = 40
Description: CTD water samples for silicate, nitrate, nitrite, ammonium, phosphate nutrient analysis
SilicateQuantity: number of profiles = 40
Description: CTD water samples for d15N isotopes, Dissolved Inorganic Carbon (DIC), silicate isotopes and biogenic silica
SilicateQuantity: number of profiles = 40
Description: CTD water samples for silicate, nitrate, nitrite, ammonium, phosphate nutrient analysis
AlkalinityQuantity: number of profiles = 40
Description: CTD water samples for Coloured Dissolved Organic Matter (CDOM), d180 isotopes, salinity and alkalinity
IsotopesQuantity: number of profiles = 40
Description: CTD water samples for Coloured Dissolved Organic Matter (CDOM), d180 isotopes, salinity and alkalinity
IsotopesQuantity: number of profiles = 40
Description: CTD water samples for d15N isotopes, Dissolved Inorganic Carbon (DIC), silicate isotopes and biogenic silica
IsotopesQuantity: number of stations = 17
Description: Stand Alone Pumps (SAPS) deployed at four depths at each station between surface and 300m. Samples for POM for compound specific isotopes.
IsotopesQuantity: number of profiles = 21
Description: CTD water samples for POM bulk isotope analysis collected from CTD casts.
Other chemical oceanographic measurementsQuantity: number of profiles = 40
Description: CTD water samples for silicate, nitrate, nitrite, ammonium, phosphate nutrient analysis
Other chemical oceanographic measurementsQuantity: number of profiles = 40
Description: CTD water samples for Chlorophyl-a, Particulate Organic Carbon (POCs), phytoplankton, cocalithopores and flow cytometry
Other chemical oceanographic measurementsQuantity: number of profiles = 40
Description: CTD water samples for Coloured Dissolved Organic Matter (CDOM), d180 isotopes, salinity and alkalinity
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 40
Description: CTD water samples for Chlorophyl-a, Particulate Organic Carbon (POCs), phytoplankton, cocalithopores and flow cytometry
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 29
Description: CTD water samples for fatty acids and pigments
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 40
Description: CTD water samples for Chlorophyl-a, Particulate Organic Carbon (POCs), phytoplankton, cocalithopores and flow cytometry
Biochemical measurements (eg lipids, amino acids)Quantity: number of profiles = 29
Description: CTD water samples for fatty acids and pigments
PhytoplanktonQuantity: number of profiles = 40
Description: CTD water samples for Chlorophyl-a, Particulate Organic Carbon (POCs), phytoplankton, cocalithopores and flow cytometry
ZooplanktonQuantity: number of hauls = 76
Description: Total number of Bongo net deployments for collection of zooplankton
ZooplanktonQuantity: number of stations = 2
Description: Zooplankton nets (Bongo) to collect specimens for physiology respiration rate experiment measuring carbon, nitrogen and lipids
ZooplanktonQuantity: number of hauls = 47
Description: Zooplankton net (Bongo) to collect Calanus specimens for metabolonics. Samples taken from 47 net deployments. 2 midnight nets deployed at 200m.
ZooplanktonQuantity: number of hauls = 47
Description: Zooplankton net (Bongo) deployments to collect specimens for Calanus egg production rates. Samples taken from 47 net deployments. 2 midnight nets deployed at 200m.
ZooplanktonQuantity: number of hauls = 47
Description: Zooplankton net (Bongo) deployments to collect specimens for Calanus grazing experiments. Samples taken from 47 net deployments. 2 midnight nets deployed at 200m.
ZooplanktonQuantity: number of stations = 16
Description: Zooplankton (Bongo/Mocness) nets to collect specimens for species composition analysis
ZooplanktonQuantity: number of stations = 16
Description: Zooplankton nets (Bongo/Mocness) collect individual Calanus for Carbon and Nitrogen analyses frozen at -80 degrees.
ZooplanktonQuantity: number of hauls = 29
Description: Total number of Mocness net deployments for collection of zooplankton
ZooplanktonQuantity: number of hauls = 5
Description: Total number of Zooplankton ring net deployments for collection of zooplankton
ZooplanktonQuantity: number of stations = 14
Description: Zooplankton nets (Bongo, Ring Net) for picking and size fractioning of Calanus and stable isotopes, compound and specific analysis.
ZooplanktonQuantity: number of stations = 16
Description: Zooplankton nets (Bongo/Mocness) to collect Calanus specimens for respiration experiments at depth
Pelagic bacteria/micro-organismsQuantity: number of profiles = 40
Description: CTD water samples for Chlorophyl-a, Particulate Organic Carbon (POCs), phytoplankton, cocalithopores and flow cytometry
Acoustic reflection on marine organisms.Quantity: activity duration in days = 29
Description: Simrad EK60 scientific echosounder
Meteorology 
Other meteorological measurementsQuantity: activity duration in days = 29
Description: Continuous underway data from ships navigation instrumentation
Other meteorological measurementsQuantity: activity duration in days = 29
Description: Continuous underway data from ships meteorology instrumentation (wind speed/direction, air pressure, humidity, air temperature, PAR, TIR sensors)
Geology and geophysics 
GrabQuantity: number of profiles = 9
Description: Day Grab deployments for surface sediments. Sub-samples for stable isotope analysis.
Core - soft bottomQuantity: number of cores = 44
Description: Megacorer deployments for sediment cores. Sub-samples for stable isotope analysis
Multi-beam echosoundingQuantity: activity duration in days = 1
Description: Opportunistic swath baythymetry data collected from EM122 multibeam echsounder
Data held at BODC Get data
Discrete samples 
5  1 metre diameter zooplankton ring net
72  CTD frame plus rosette sampler
13  Day grab
27  Multicorer
38  Sample taken from ship's non-toxic supply
17  Stand-alone pumps
76  Twin WP-2 net mounted on a frame
29  Unspecified zooplankton net or nets