Cruise inventory

RRS James Cook JC042

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Cook (740H)
Cruise identifierJC042
Cruise period2010-01-07 — 2010-02-21
StatusCompleted
Port of departurePunta Arenas, Chile
Port of returnMontevideo, Uruguay
PurposeResearch
ObjectivesObjectives

(i) Investigate the southern South Georgia site to locate the presence of hydrocarbon seep or exposed methane hydrates. To document any such sites using video and stills and sample the fauna for taxonomic, phylogenetic, reproduction and food web studies using the ROV Isis. To simultaneously document the geological features of any site and sample fluids and sediments for geochemical analyses.

(ii) To relocate and document hydrothermal vents at E2 and E9 using video and stills and sample the fauna for taxonomic, phylogenetic, reproduction and food web studies using the ROV Isis both on and off the vent sites. To simultaneously document the geological features of the E2 and E9 vent sites and sample fluids and sediments for geochemical analyses.

(iii) To investigate the newly discovered McIntosh Crater using CTD casts to attempt to resolve individual hydrothermal plumes and to survey the crater floor for hydrothermal sites. To document any such sites using video and stills and sample the fauna for taxonomic, phylogenetic, reproduction and food web studies using the ROV Isis. To simultaneously document the geological features of any site and sample fluids and sediments for geochemical analyses.

(iv) To return to Douglas Strait and undertake coring studies to study the sediment geochemistry of the caldera. To undertake ROV dives to detect areas of hydrothermal venting or diffuse flow and sample them for fauna and geochemistry as at previous sites. This area was considered as low priority because it was felt that there was little evidence of significant hydrothermal flow at the site.

During the cruise, the South Georgia, Scotia Ridge and McIntosh Crater sites were investigated but the Douglas Strait site was not visited because of scientific priorities changing during the cruise.
Chief scientistAlex David Rogers (Zoological Society of London Institute of Zoology)
ProjectChemosynthetic Ecosystems of the Southern Ocean (CHESSO)
Coordinating bodySchool of Ocean and Earth Science, University of Southampton
Cruise reportRRS James Cook JC042 cruise report jc042.pdf — access key 'C' (4.23 MB) 
Ocean/sea areas 
GeneralSouthern Ocean
SpecificSouth Georgia Shelf. East Scotia Ridge. South Sandwich Islands.
Track chartsRRS James Cook JC042 cruise track — jc042trk.pdf (0.18 MB) 
Measurements 
Physical oceanography 
CTD stationsQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
Chemical oceanography 
OxygenQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
OxygenQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
Carbon dioxideQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
Carbon dioxideQuantity: number of samples = 17
Description: ROV Niskin bottles. Sampled for dissolved inorganic and organic carbon, methane, trace metals, bacteria and siderophores.
Other dissolved gasesQuantity: number of samples = 17
Description: ROV Niskin bottles. Sampled for dissolved inorganic and organic carbon, methane, trace metals, bacteria and siderophores.
Other dissolved gasesQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
Other dissolved gasesQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
PhosphateQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
PhosphateQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
PhosphateQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
Total - PQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
Total - PQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
NitrateQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
NitriteQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
NitriteQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
NitriteQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
Total - NQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
Total - NQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
AmmoniaQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
AmmoniaQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
SilicateQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
AlkalinityQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
AlkalinityQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
AlkalinityQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
pHQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
Trace elementsQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
IsotopesQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
Other chemical oceanographic measurementsQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
Other chemical oceanographic measurementsQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
Other chemical oceanographic measurementsQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
Other chemical oceanographic measurementsQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
Contamination 
Suspended matterQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
Suspended matterQuantity: number of samples = 17
Description: ROV Niskin bottles. Sampled for dissolved inorganic and organic carbon, methane, trace metals, bacteria and siderophores.
Trace metalsQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
Trace metalsQuantity: number of samples = 17
Description: ROV Niskin bottles. Sampled for dissolved inorganic and organic carbon, methane, trace metals, bacteria and siderophores.
Trace metalsQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
Petroleum residuesQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
Petroleum residuesQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
Biology and fisheries 
Eggs and larvaeQuantity: number of specimens = 12500
Description: Organisms collected from vent and non-vent habitats using ROV (manipulators and suction sampler) and baited traps. Over 12,500 samples collected for systematics, molecular phylogenetics, molecular ecology, reproductive ecology, foodweb studies, studies of heavy metal content, studies of behaviour and studies of symbiosis. Many organisms photographed and filmed in situ during ROV dives.
Pelagic bacteria/micro-organismsQuantity: number of profiles = 20
Description: CTD casts and To-Yos (sometimes mixed). Temperature, salinity and oxygen concentrations. Also transmissometer and redox measured from instruments on CTD. Water samples for dissolved gases (methane), trace metals and bacteria.
Benthic bacteria/micro-organismsQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
Benthic bacteria/micro-organismsQuantity: number of samples = 31
Description: Water samples taken with titanium syringes from ROV. Separate sub-samples were collected for (i) refractive index, (ii) alkalinity, (iii) dissolved inorganic carbon and carbon isotopes, (iv) pH, (v) gases (including CH4, CO2 and H2), (vi) anions and silica, (vii) nutrients, (viii) dissolved organic carbon, (ix) O and H isotopes, and (x) bacteria, in that order. The remainder of the sample was emptied into an acid-cleaned 1-L HDPE bottle for analysis of all other constituents, including cations and the transition metals.
Benthic bacteria/micro-organismsQuantity: number of specimens = 12500
Description: Organisms collected from vent and non-vent habitats using ROV (manipulators and suction sampler) and baited traps. Over 12,500 samples collected for systematics, molecular phylogenetics, molecular ecology, reproductive ecology, foodweb studies, studies of heavy metal content, studies of behaviour and studies of symbiosis. Many organisms photographed and filmed in situ during ROV dives.
Benthic bacteria/micro-organismsQuantity: number of samples = 17
Description: ROV Niskin bottles. Sampled for dissolved inorganic and organic carbon, methane, trace metals, bacteria and siderophores.
Benthic bacteria/micro-organismsQuantity: number of samples = 14
Description: Sulphide samples from vent chimneys collected using manipulators on ROV. Each sample was photographed. Chimneys were sampled for bacteria and biofilms. Samples were then dried and packaged for transport to laboratory.
Benthic bacteria/micro-organismsQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
ZoobenthosQuantity: number of specimens = 12500
Description: Organisms collected from vent and non-vent habitats using ROV (manipulators and suction sampler) and baited traps. Over 12,500 samples collected for systematics, molecular phylogenetics, molecular ecology, reproductive ecology, foodweb studies, studies of heavy metal content, studies of behaviour and studies of symbiosis. Many organisms photographed and filmed in situ during ROV dives.
Demersal fishQuantity: number of specimens = 12500
Description: Organisms collected from vent and non-vent habitats using ROV (manipulators and suction sampler) and baited traps. Over 12,500 samples collected for systematics, molecular phylogenetics, molecular ecology, reproductive ecology, foodweb studies, studies of heavy metal content, studies of behaviour and studies of symbiosis. Many organisms photographed and filmed in situ during ROV dives.
MolluscsQuantity: number of specimens = 12500
Description: Organisms collected from vent and non-vent habitats using ROV (manipulators and suction sampler) and baited traps. Over 12,500 samples collected for systematics, molecular phylogenetics, molecular ecology, reproductive ecology, foodweb studies, studies of heavy metal content, studies of behaviour and studies of symbiosis. Many organisms photographed and filmed in situ during ROV dives.
CrustaceansQuantity: number of specimens = 12500
Description: Organisms collected from vent and non-vent habitats using ROV (manipulators and suction sampler) and baited traps. Over 12,500 samples collected for systematics, molecular phylogenetics, molecular ecology, reproductive ecology, foodweb studies, studies of heavy metal content, studies of behaviour and studies of symbiosis. Many organisms photographed and filmed in situ during ROV dives.
Other biological/fisheries measurementQuantity: number of image series = 500
Description: Video images taken during ROV dives.
Other biological/fisheries measurementQuantity: number of surveys = 34
Description: Videographic surveys for mosaicing of animal communities
Other biological/fisheries measurementQuantity: number of image series = 600
Description: Video images taken during ROV dives.
Other biological/fisheries measurementQuantity: number of specimens = 12500
Description: Organisms collected from vent and non-vent habitats using ROV (manipulators and suction sampler) and baited traps. Over 12,500 samples collected for systematics, molecular phylogenetics, molecular ecology, reproductive ecology, foodweb studies, studies of heavy metal content, studies of behaviour and studies of symbiosis. Many organisms photographed and filmed in situ during ROV dives.
Other biological/fisheries measurementQuantity: number of image series = 250
Description: Video images taken during ROV dives.
Other biological/fisheries measurementQuantity: number of images = 4395
Description: Stills images taken during ROV dives.
Geology and geophysics 
GrabQuantity: number of samples = 14
Description: Sulphide samples from vent chimneys collected using manipulators on ROV. Each sample was photographed. Chimneys were sampled for bacteria and biofilms. Samples were then dried and packaged for transport to laboratory.
Core - soft bottomQuantity: number of cores = 37
Description: Push Cores from ROV. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments.
Core - soft bottomQuantity: number of cores = 7
Description: Gravity cores deployed from ship. Note - 5 cores failed. Sediment and pore water sampled for both on board analyses and analyses in Southampton. Note oceanographic measurements outlined here are for pore water and sediments
Bottom photographyQuantity: number of images = 4395
Description: Stills images taken during ROV dives.
Bottom photographyQuantity: number of surveys = 34
Description: Videographic surveys for mosaicing of animal communities
Bottom photographyQuantity: number of image series = 500
Description: Video images taken during ROV dives.
Bottom photographyQuantity: number of image series = 250
Description: Video images taken during ROV dives.
Bottom photographyQuantity: number of image series = 600
Description: Video images taken during ROV dives.
In-situ seafloor measurement/samplingQuantity: data volume in gigabytes = 1.3
Description: ROV-mounted CTD system.
Geophysical measurements made at depthQuantity: data volume in gigabytes = 12
Description: ROV-mounted multibeam bathymetry system.
Other geological/geophysical measurementsQuantity: number of dives = 31
Description: ROV Dives
Other geological/geophysical measurementsQuantity: data volume in gigabytes = 1.27
Description: ROV navigational data.
Moorings, landers, buoys 
Physical oceanography 
Current meters59° 42' 0" S  28° 21' 0" W — Current meter mooring
Current profiler (eg ADCP)56° 4' 59" S  30° 19' 0" W — ADCP lander
Current profiler (eg ADCP)60° 1' 59" S  29° 58' 0" W — ADCP lander
Contamination 
Suspended matter56° 4' 59" S  30° 19' 0" W — SAPS Mooring