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RRS Challenger CH6/78

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH6/78
Cruise period1978-04-11 — 1978-04-21
StatusCompleted
Port of departureBarry, United Kingdom
Port of returnMallaig, United Kingdom
PurposeResearch
ObjectivesThe objectives of this cruise were:
(1) Service the current meter mooring at 57N, 9W. Accomplished.
(2) Lay a deep mooring between the Anton Dohrn Seamount and the continental shelf. Accomplished.
(3) Work the Rockall via Anton Dohrn Seamount (Ellett Line) CTD section. Accomplished.
(4) Moor a set off test panels off South Uist for fouling studies. Accomplished.
(5) Work CTD sections on the shelf to the west of the Hebrides. Three E-W sections between Barra Head and St. Kilda together with stations off the west coasts of Barra and South Uist. A section between Loch Boisdal and Loch Moidart was also worked.
(6) Collect large-volume surface water samples on the Scottish shelf for radiocaesium analysis. Accomplished together with CTD casts on all but one station.
(7) Obtain an epibenthic sled sample of the macrobenthos at 54° 40 min N, 12° 16 min W (SMBA permanent station). Accomplished.
(8) Test the Mk II box corer at abyssal depths by collecting cores at the epibenthic sled station (2900m depth). Failed due to samples being washed away during recovery.
(9) Obtain benthic megafauna samples using an Agassiz trawl. Accomplished with hauls on the permanent station between the Anton Dohrn Seamount and the Hebridean slope.
(10) Obtain samples of deep plankton at the SMBA permanent station using a small rectangular mid-water trawl. Accomplished.
(11) Obtain further samples on a partially-completed box-coring transect across the Hebridean slope. Not attempted due to time constraints.
Chief scientistDavid J Ellett (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH6/78 cruise report ch6_78.pdf (0.29 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
Track chartsRRS Challenger CH6/78 cruise track — trk2128.html
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of stations = 69
Description: S surface only
CTD stationsQuantity: number of stations = 71
Current metersQuantity: number of stations = 1
Description: 2x73 days position 57N;9W
Chemical oceanography 
RadioactivityQuantity: number of samples = 10
Description: water samples for radio-caesium analysis
Biology and fisheries 
ZooplanktonQuantity: number of hauls = 1
Description: single deep haul using combined RMT-7 and RMT-1 pelagic nets.
ZoobenthosQuantity: number of hauls = 3
Description: taxonomy,population studies
Gear researchQuantity: number of deployments = 2
Description: trials of the mk II box corer.
Data held at BODC Get data
Series/Profiles 
71  CTD/STD cast
Salinity of the water column
Vertical spatial coordinates
Temperature of the water column
Salinity of the water column
Vertical spatial coordinates
Temperature of the water column

BODC idDate/TimeLocationDoc.
945581978-04-17 15:38 56° 55' 59" N  8° 45' 29" W  View metadata report for BODC series reference number 94558
946871978-04-18 12:20 57° 31' 53" N  7° 58' 17" W  View metadata report for BODC series reference number 94687
947921978-04-19 07:08 57° 23' 17" N  10° 51' 35" W  View metadata report for BODC series reference number 94792
950151978-04-21 03:05 57° 7' 59" N  7° 10' 59" W  View metadata report for BODC series reference number 95015
944421978-04-16 05:58 57° 30' 29" N  12° 15' 0" W  View metadata report for BODC series reference number 94442
944911978-04-16 16:34 57° 25' 47" N  11° 7' 11" W  View metadata report for BODC series reference number 94491
947431978-04-18 19:49 57° 49' 12" N  9° 17' 29" W  View metadata report for BODC series reference number 94743
947551978-04-18 20:55 57° 53' 29" N  9° 32' 35" W  View metadata report for BODC series reference number 94755
948591978-04-19 21:37 57° 5' 47" N  9° 24' 36" W  View metadata report for BODC series reference number 94859
948601978-04-20 00:33 57° 2' 59" N  9° 15' 5" W  View metadata report for BODC series reference number 94860
948721978-04-20 01:00 56° 59' 17" N  8° 59' 5" W  View metadata report for BODC series reference number 94872
949271978-04-20 10:35 57° 10' 17" N  8° 1' 47" W  View metadata report for BODC series reference number 94927
949641978-04-20 18:05 56° 44' 41" N  7° 0' 0" W  View metadata report for BODC series reference number 94964
944051978-04-15 22:37 57° 32' 35" N  12° 59' 5" W  View metadata report for BODC series reference number 94405
944171978-04-16 00:48 57° 31' 59" N  12° 50' 53" W  View metadata report for BODC series reference number 94417
944541978-04-16 09:35 57° 29' 11" N  11° 49' 5" W  View metadata report for BODC series reference number 94454
945461978-04-17 13:51 56° 59' 5" N  8° 58' 23" W  View metadata report for BODC series reference number 94546
947311978-04-18 18:32 57° 45' 35" N  9° 6' 35" W  View metadata report for BODC series reference number 94731
948471978-04-19 19:30 57° 7' 23" N  9° 34' 17" W  View metadata report for BODC series reference number 94847
949031978-04-20 07:18 57° 17' 42" N  8° 32' 29" W  View metadata report for BODC series reference number 94903
949401978-04-20 14:01 57° 4' 23" N  7° 36' 59" W  View metadata report for BODC series reference number 94940
949761978-04-20 19:08 56° 43' 41" N  6° 44' 6" W  View metadata report for BODC series reference number 94976
950521978-04-21 08:31 57° 10' 23" N  6° 40' 35" W  View metadata report for BODC series reference number 95052
950881978-04-21 10:32 57° 18' 47" N  6° 32' 24" W  View metadata report for BODC series reference number 95088
944661978-04-16 12:28 57° 28' 53" N  11° 32' 53" W  View metadata report for BODC series reference number 94466
945831978-04-17 18:26 56° 50' 35" N  8° 19' 48" W  View metadata report for BODC series reference number 94583
946751978-04-18 10:40 57° 27' 29" N  7° 38' 53" W  View metadata report for BODC series reference number 94675
948351978-04-19 16:47 57° 12' 29" N  10° 4' 17" W  View metadata report for BODC series reference number 94835
951441978-04-21 16:19 56° 49' 59" N  6° 5' 29" W  View metadata report for BODC series reference number 95144
944301978-04-16 03:20 57° 27' 17" N  12° 14' 17" W  View metadata report for BODC series reference number 94430
945091978-04-16 18:02 57° 23' 5" N  10° 53' 5" W  View metadata report for BODC series reference number 94509
946021978-04-17 22:18 56° 44' 29" N  7° 40' 29" W  View metadata report for BODC series reference number 94602
946141978-04-18 00:15 56° 47' 17" N  7° 46' 30" W  View metadata report for BODC series reference number 94614
946511978-04-18 03:43 57° 6' 11" N  7° 43' 35" W  View metadata report for BODC series reference number 94651
948231978-04-19 15:30 57° 14' 29" N  10° 13' 59" W  View metadata report for BODC series reference number 94823
950271978-04-21 04:14 57° 5' 17" N  7° 1' 30" W  View metadata report for BODC series reference number 95027
950641978-04-21 09:15 57° 13' 35" N  6° 37' 59" W  View metadata report for BODC series reference number 95064
951561978-04-21 16:54 56° 48' 59" N  5° 57' 29" W  View metadata report for BODC series reference number 95156
945711978-04-17 17:22 56° 52' 17" N  8° 29' 29" W  View metadata report for BODC series reference number 94571
945951978-04-17 20:18 56° 47' 17" N  7° 59' 42" W  View metadata report for BODC series reference number 94595
946381978-04-18 02:59 56° 59' 11" N  7° 45' 53" W  View metadata report for BODC series reference number 94638
947061978-04-18 15:27 57° 38' 5" N  8° 34' 5" W  View metadata report for BODC series reference number 94706
947181978-04-18 16:29 57° 41' 17" N  8° 43' 41" W  View metadata report for BODC series reference number 94718
948111978-04-19 08:20 57° 19' 53" N  10° 40' 17" W  View metadata report for BODC series reference number 94811
949391978-04-20 11:43 57° 8' 5" N  7° 50' 47" W  View metadata report for BODC series reference number 94939
949521978-04-20 16:38 56° 44' 29" N  7° 19' 59" W  View metadata report for BODC series reference number 94952
950031978-04-20 21:38 56° 40' 59" N  6° 16' 59" W  View metadata report for BODC series reference number 95003
943861978-04-15 19:25 57° 32' 47" N  13° 37' 23" W  View metadata report for BODC series reference number 94386
944291978-04-16 01:55 57° 31' 41" N  12° 37' 48" W  View metadata report for BODC series reference number 94429
945101978-04-16 19:25 57° 21' 5" N  10° 40' 59" W  View metadata report for BODC series reference number 94510
946631978-04-18 05:42 57° 12' 59" N  7° 39' 47" W  View metadata report for BODC series reference number 94663
946991978-04-18 13:48 57° 35' 6" N  8° 15' 35" W  View metadata report for BODC series reference number 94699
947671978-04-18 22:25 57° 56' 29" N  9° 47' 6" W  View metadata report for BODC series reference number 94767
947801978-04-19 05:37 57° 27' 36" N  11° 1' 47" W  View metadata report for BODC series reference number 94780
949151978-04-20 08:53 57° 13' 47" N  8° 18' 5" W  View metadata report for BODC series reference number 94915
950401978-04-21 07:36 57° 6' 0" N  6° 44' 42" W  View metadata report for BODC series reference number 95040
951201978-04-21 14:55 56° 53' 24" N  6° 21' 36" W  View metadata report for BODC series reference number 95120
943981978-04-15 20:55 57° 33' 59" N  13° 18' 53" W  View metadata report for BODC series reference number 94398
944781978-04-16 15:03 57° 26' 42" N  11° 22' 17" W  View metadata report for BODC series reference number 94478
945221978-04-17 01:12 57° 13' 11" N  10° 30' 0" W  View metadata report for BODC series reference number 94522
945341978-04-17 10:00 57° 10' 59" N  10° 6' 41" W  View metadata report for BODC series reference number 94534
946261978-04-18 01:15 56° 51' 23" N  7° 50' 53" W  View metadata report for BODC series reference number 94626
947791978-04-19 00:50 58° 0' 11" N  9° 54' 53" W  View metadata report for BODC series reference number 94779
948841978-04-20 03:54 57° 24' 59" N  9° 11' 59" W  View metadata report for BODC series reference number 94884
948961978-04-20 05:32 57° 21' 59" N  8° 55' 59" W  View metadata report for BODC series reference number 94896
949881978-04-20 20:34 56° 43' 59" N  6° 26' 35" W  View metadata report for BODC series reference number 94988
951191978-04-21 13:50 56° 56' 29" N  6° 36' 59" W  View metadata report for BODC series reference number 95119
950391978-04-21 06:51 57° 1' 59" N  6° 48' 59" W  View metadata report for BODC series reference number 95039
950761978-04-21 09:53 57° 16' 5" N  6° 35' 23" W  View metadata report for BODC series reference number 95076
951071978-04-21 13:00 56° 59' 11" N  6° 39' 5" W  View metadata report for BODC series reference number 95107
951321978-04-21 15:40 56° 52' 48" N  6° 19' 41" W  View metadata report for BODC series reference number 95132