Cruise inventory

RRS James Clark Ross JR20090312 (JR200, JR200A, JR208)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR20090312 (JR200, JR200A, JR208)
Cruise period2009-03-11 — 2009-04-18
StatusCompleted
Port of departureStanley, Falkland Islands (Malvinas)
Port of returnStanley, Falkland Islands (Malvinas)
PurposeResearch
ObjectivesJR200 was the third of 3 cruises to the Scotia Sea region of the Southern Ocean, providing an autumn perspective to the fieldwork campaign of the DISCOVERY 2010 programme. Previous cruises include JR161 (spring) and JR177 (summer). The three cruises were designed to follow a similar cruise track (to allow inter cruise comparisons) and to sample across the range of environments that typify the Southern Ocean: the ice edge, shelf-seas, open-ocean, HNLC conditions, iron-enriched conditions and frontal areas. Through 2 BAS core science projects and a number of collaborations, we aimed to characterise ecosystem processes, from the impact of micro- and macronutrient availability on primary productivity, through to primary (zooplankton) and secondary (nekton) consumer processes and up to higher predator studies on abundance, distribution and diet.

The FLEXICON (Flexibility and Constraints in Life Histories) project consisted largely of a depth-discrete sampling programme to consider the distribution of different life-cycle stages and body states of key zooplankton species. Acoustic data supplemented these studies as well as providing detailed information on krill and fish swarm structures.
The FOODWEBS (Scotia Sea Food-webs) project took a number of complimentary approaches to consider linkages between different trophic levels, including micro- and macronutrient availability, phytoplankton studies, gut content examinations, stable-isotope analyses, higher-predator tracking studies. In addition, sediment traps deployed near to South Georgia will also provide key insights into carbon flux to the deep ocean.

In addition to the core DISCOVERY 2010 work, supplementary projects were supported on the cruise. The Dipycnal and Isopycnal Mixing Experiment in the Scotia Sea (DIMES) programme, of the Physical Sciences Division, had a remit to obtain greater resolution in physical oceanographic parameters across the Scotia Sea. Integration of DIMES into the cruise track increased the frequency of full-depth CTDs between core-sampling stations. The Antarctic Funding Initiative, Collaborative Gearing Scheme (AFI-CGS) project "Diseases of krill in the southern ocean: effects on standing stock and implications of changing climates", took advantage of our regular catches of live krill. Preserved samples will be examined in the UK at CEFAS and a pathogen profile generated. The AFI-CGS project "Iron availability and effects on phytoplankton communities in contrasting production regimes of the Scotia Sea: a seasonal perspective" contributed directly to the aims of FOODWEBS. Measurements of iron concentration were made throughout the cruise, and bioassays carried out, to examine the controlling influence of this micro-nutrient on primary productivity. This cruise also hosted three independently funded collaborators (Jose Xavier, Yves Cherel and Anton van de Putte) to assist in the fishing work throughout the cruise and in particular at the Polar Front.
Chief scientistRebecca Korb (British Antarctic Survey)
ProjectDISCOVERY2010
Cruise reportRRS James Clark Ross JR20090312 (JR200, JR200A, JR208) cruise report jr200.pdf — access key 'C' (5.89 MB) 
Ocean/sea areas 
GeneralSouth West Atlantic Ocean (limit 20W)
SpecificScotia Sea
Track chartsRRS James Clark Ross JR20090312 (JR200, JR200A, JR208) cruise track — jr200trk.pdf (00 MB) 
Data held at BODC 
Series/Profiles 
19  Bottle station
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Reference numbers
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Reference numbers

BODC idDate/TimeLocationDoc.
13329802009-04-02 07:03 53° 53' 51" S  40° 38' 39" W  View metadata report for BODC series reference number 1332980
13329922009-04-02 12:11 53° 21' 4" S  40° 22' 27" W  View metadata report for BODC series reference number 1332992
13330062009-04-03 08:15 52° 48' 28" S  40° 6' 52" W  View metadata report for BODC series reference number 1333006
13330182009-04-06 12:08 52° 51' 2" S  37° 5' 48" W  View metadata report for BODC series reference number 1333018
13328512009-03-13 12:36 57° 41' 30" S  50° 25' 47" W  View metadata report for BODC series reference number 1332851
13328632009-03-16 09:29 60° 29' 54" S  48° 11' 30" W  View metadata report for BODC series reference number 1332863
13328752009-03-17 14:54 60° 25' 52" S  44° 35' 35" W  View metadata report for BODC series reference number 1332875
13328872009-03-18 09:59 60° 12' 30" S  44° 24' 30" W  View metadata report for BODC series reference number 1332887
13329432009-03-25 12:14 57° 35' 7" S  42° 42' 8" W  View metadata report for BODC series reference number 1332943
13329552009-03-28 17:43 56° 23' 16" S  42° 0' 4" W  View metadata report for BODC series reference number 1332955
13329672009-03-29 15:34 55° 38' 4" S  41° 34' 15" W  View metadata report for BODC series reference number 1332967
13329792009-03-31 09:28 55° 15' 31" S  41° 21' 27" W  View metadata report for BODC series reference number 1332979
13330312009-04-09 18:49 49° 56' 8" S  34° 12' 28" W  View metadata report for BODC series reference number 1333031
13330432009-04-10 16:46 50° 25' 14" S  33° 52' 47" W  View metadata report for BODC series reference number 1333043
13330552009-04-11 08:03 50° 35' 59" S  33° 48' 6" W  View metadata report for BODC series reference number 1333055
13328992009-03-21 08:52 59° 41' 19" S  44° 3' 17" W  View metadata report for BODC series reference number 1332899
13329062009-03-22 11:06 59° 1' 31" S  43° 37' 15" W  View metadata report for BODC series reference number 1332906
13329182009-03-22 16:25 58° 41' 39" S  43° 24' 15" W  View metadata report for BODC series reference number 1332918
13329312009-03-24 10:11 58° 1' 51" S  42° 58' 16" W  View metadata report for BODC series reference number 1332931
49  CTD/STD cast
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Dissolved oxygen parameters in the water column
Transmittance and attenuance of the water column
Visible waveband radiance and irradiance measurements in the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Reference numbers
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
9740942009-03-16 08:50:43 60° 29' 54" S  48° 11' 30" W  View metadata report for BODC series reference number 974094
9741012009-03-15 06:59:19 60° 29' 54" S  48° 11' 31" W  View metadata report for BODC series reference number 974101
9741132009-03-16 10:35:28 60° 25' 52" S  44° 35' 35" W  View metadata report for BODC series reference number 974113
9741252009-03-17 20:23:24 60° 12' 30" S  44° 24' 29" W  View metadata report for BODC series reference number 974125
9741372009-03-17 22:07:15 60° 12' 30" S  44° 24' 28" W  View metadata report for BODC series reference number 974137
9741492009-03-18 07:34:09 60° 12' 30" S  44° 24' 30" W  View metadata report for BODC series reference number 974149
9741502009-03-19 18:37:57 59° 56' 5" S  44° 14' 12" W  View metadata report for BODC series reference number 974150
9741622009-03-21 07:25:33 59° 41' 19" S  44° 3' 17" W  View metadata report for BODC series reference number 974162
9741742009-03-20 17:37:18 59° 41' 19" S  44° 3' 14" W  View metadata report for BODC series reference number 974174
9741862009-03-21 23:14:04 59° 41' 19" S  44° 3' 14" W  View metadata report for BODC series reference number 974186
9741982009-03-22 05:18:04 59° 21' 21" S  43° 50' 11" W  View metadata report for BODC series reference number 974198
9742052009-03-21 06:09:59 59° 1' 31" S  43° 37' 15" W  View metadata report for BODC series reference number 974205
9742172009-03-21 11:34:16 58° 41' 39" S  43° 24' 15" W  View metadata report for BODC series reference number 974217
9742292009-03-22 19:46:03 58° 21' 43" S  43° 11' 20" W  View metadata report for BODC series reference number 974229
9742302009-03-23 05:20:14 58° 1' 51" S  42° 58' 16" W  View metadata report for BODC series reference number 974230
9742422009-03-23 15:11:53 58° 1' 48" S  42° 58' 15" W  View metadata report for BODC series reference number 974242
9742542009-03-23 18:47:30 58° 1' 48" S  42° 58' 15" W  View metadata report for BODC series reference number 974254
9742662009-03-24 07:22:42 57° 35' 7" S  42° 42' 8" W  View metadata report for BODC series reference number 974266
9742782009-03-25 16:22:45 57° 8' 23" S  42° 26' 1" W  View metadata report for BODC series reference number 974278
9742912009-03-25 23:40:53 56° 45' 48" S  42° 13' 16" W  View metadata report for BODC series reference number 974291
9743092009-03-26 08:14:04 56° 45' 48" S  42° 13' 3" W  View metadata report for BODC series reference number 974309
9743102009-03-25 19:20:37 56° 44' 23" S  42° 23' 25" W  View metadata report for BODC series reference number 974310
9743222009-03-25 21:05:46 56° 47' 47" S  42° 11' 8" W  View metadata report for BODC series reference number 974322
9743342009-03-26 15:52:26 56° 45' 48" S  42° 13' 6" W  View metadata report for BODC series reference number 974334
9743462009-03-27 12:33:24 56° 23' 16" S  42° 0' 4" W  View metadata report for BODC series reference number 974346
9743582009-03-28 10:31:35 55° 38' 4" S  41° 34' 15" W  View metadata report for BODC series reference number 974358
9743712009-03-28 17:42:28 55° 15' 32" S  41° 21' 29" W  View metadata report for BODC series reference number 974371
9743832009-03-29 23:25:37 55° 15' 32" S  41° 21' 29" W  View metadata report for BODC series reference number 974383
9743952009-03-30 04:15:59 55° 15' 31" S  41° 21' 27" W  View metadata report for BODC series reference number 974395
9744022009-04-01 01:53:44 54° 54' 42" S  41° 10' 26" W  View metadata report for BODC series reference number 974402
9744142009-03-31 14:50:11 54° 35' 22" S  40° 59' 45" W  View metadata report for BODC series reference number 974414
9744262009-04-02 00:44:48 54° 13' 10" S  40° 48' 47" W  View metadata report for BODC series reference number 974426
9744382009-04-02 04:52:22 53° 53' 48" S  40° 38' 38" W  View metadata report for BODC series reference number 974438
9744512009-04-02 06:52:09 53° 53' 51" S  40° 38' 39" W  View metadata report for BODC series reference number 974451
9744632009-04-02 12:02:37 53° 21' 4" S  40° 22' 27" W  View metadata report for BODC series reference number 974463
9744752009-04-01 17:08:06 52° 48' 30" S  40° 6' 55" W  View metadata report for BODC series reference number 974475
9744872009-04-02 22:42:25 52° 48' 30" S  40° 6' 52" W  View metadata report for BODC series reference number 974487
9744992009-04-03 06:57:19 52° 48' 28" S  40° 6' 51" W  View metadata report for BODC series reference number 974499
9745062009-04-06 11:18:03 52° 51' 2" S  37° 5' 48" W  View metadata report for BODC series reference number 974506
9745182009-04-05 11:38:27 52° 51' 2" S  37° 5' 48" W  View metadata report for BODC series reference number 974518
9745312009-04-08 14:34:58 49° 56' 8" S  34° 12' 28" W  View metadata report for BODC series reference number 974531
9745432009-04-08 16:56:52 50° 3' 47" S  34° 1' 43" W  View metadata report for BODC series reference number 974543
9745552009-04-10 14:31:58 50° 14' 33" S  33° 57' 9" W  View metadata report for BODC series reference number 974555
9745672009-04-10 16:30:35 50° 25' 14" S  33° 52' 47" W  View metadata report for BODC series reference number 974567
9745792009-04-11 07:23:40 50° 35' 59" S  33° 48' 6" W  View metadata report for BODC series reference number 974579
9740572009-03-13 12:24:10 57° 41' 30" S  50° 25' 47" W  View metadata report for BODC series reference number 974057
9740692009-03-13 13:24:22 57° 41' 39" S  50° 25' 30" W  View metadata report for BODC series reference number 974069
9740702009-03-13 15:18:04 60° 29' 57" S  48° 11' 39" W  View metadata report for BODC series reference number 974070
9740822009-03-13 16:44:41 60° 29' 55" S  48° 11' 35" W  View metadata report for BODC series reference number 974082
Discrete samples 
19  CTD frame plus rosette samplerSilicate concentration parameters in the water column
Nitrate concentration parameters in the water column