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RRS Discovery D191

Cruise summary report

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Cruise Info.

Ship name (ship code)

RRS Discovery (74E3)

Cruise identifier

D191

Cruise period

1990-05-11 — 1990-06-06

Status

Completed

Port of departure

Barry, United Kingdom

Port of return

Barry, United Kingdom

Purpose

Research

Objectives

1. To recover moorings deployed 59N 22W in 1989.
2. To participate in the BOFS Langrangian experiment by:
(a) Coordinating JGOFS level 1 observations every two days between the two Darwin cruises.
(b) Investigating quantitatively and qualitatively the particulate material throughout the water column, sampling it using stand-alone pumps, sediment traps, large volume water bottles and coherent light photography.
(c) Sampling the pelagic communities in the top 1000m of the water column to assess their contribution to the biological pump.
(d) Collecting core samples of the surficial sediment to evaluate the microbial response to increases in organic input associated with the onset of the spring bloom.
(e) To maintain contact with, and service the drifting moorings deployed for the experiment.

Chief scientist

Martin V Angel (Institute of Oceanographic Sciences Deacon Laboratory)

Project

BOFS

Coordinating body

NERC,(UK contribution to JGOFS)

Cruise report

RRS Discovery D191 cruise report d191.pdf

(1.46 MB)

Ocean/sea areas

General

North East Atlantic Ocean (limit 40W)

Specific

main areas 59N,22dW; 48.5N,17.5W

Track charts

RRS Discovery D191 cruise track — trk3602a.html

RRS Discovery D191 cruise track — trk3602b.html

RRS Discovery D191 cruise track — trk3602c.html

RRS Discovery D191 cruise track — trk3602d.html

RRS Discovery D191 cruise track — trk3602e.html

RRS Discovery D191 cruise track — trk3602f.html

RRS Discovery D191 cruise track — trk3602g.html

RRS Discovery D191 cruise track — trk3602h.html

RRS Discovery D191 cruise track — trk3602i.html

RRS Discovery D191 cruise track — trk3602j.html

Measurements

Physical oceanography

Bathythermograph

Quantity: number of profiles = 25

Water bottle stations

Quantity: number of profiles = 21

CTD stations

Quantity: number of profiles = 21
Description: 5 with T only

Transparency (eg transmissometer)

Quantity: number of profiles = 10

Chemical oceanography

Oxygen

Quantity: number of profiles = 10

Carbon dioxide

Quantity: number of profiles = 10
Description: pCO2

Other dissolved gases

Quantity: number of profiles = 10
Description: N2 and Argon

Phosphate

Quantity: number of profiles = 10

Nitrate

Quantity: number of profiles = 10

Nitrite

Quantity: number of profiles = 10

Ammonia

Quantity: number of profiles = 10

Silicate

Quantity: number of profiles = 10

Contamination

Suspended matter

Quantity: number of profiles = 14
Description: marine snow camera profiles to 300m or more

Suspended matter

Quantity: number of samples = 29
Description: 100 litre water bottle sample to collect aggregates in top 300m

Suspended matter

Quantity: number of deployments = 13
Description: Stand alone pump samples filtering large volumes of water in situ

Biology and fisheries

Primary productivity

Quantity: number of experiments = 12
Description: 14C and O2 production in top 35m using deck incubations

Biochemical measurements (eg lipids, amino acids)

Quantity: number of deployments = 13
Description: Stand alone pump samples filtering large volumes of water in situ

Biochemical measurements (eg lipids, amino acids)

Quantity: number of cores = 4
Description: Multicorer samples for lipid analyses, bacteriological study & infauna sampling

Zooplankton

Quantity: number of hauls = 54
Description: Trawls with RMT(1+8)m to profile pelagic communities & quantify diel migration

Zooplankton

Quantity: number of hauls = 21
Description: WP2 and Apstein nets for JGOFS protocols and experimental material

Nekton

Quantity: number of hauls = 54
Description: Trawls with RMT(1+8)m to profile pelagic communities & quantify diel migration

Pelagic bacteria/micro-organisms

Quantity: number of samples = 56
Description: Range of microbiological assays from bottle samples from thro'out water column

Benthic bacteria/micro-organisms

Quantity: number of cores = 4
Description: Multicorer samples for lipid analyses, bacteriological study & infauna sampling

Zoobenthos

Quantity: number of cores = 4
Description: Multicorer samples for lipid analyses, bacteriological study & infauna sampling

Moorings, landers, buoys

Biology and fisheries

Sediment traps

48° 25' 0" N 17° 37' 59" W — deployed short-term (2 days) drifting sediment traps, depths:- 50,100,200,300m

Sediment traps

48° 27' 0" N 17° 25' 59" W — deployed long-term drifting sediment traps, depths:- 176m, 591m, 1009m, 2466m

Sediment traps

48° 25' 59" N 17° 38' 59" W — deployed short-term (3 days) drifting sediment traps, depths:- 50,100,200,300m

Sediment traps

48° 10' 59" N 16° 58' 0" W — deployed short-term (2 days) drifting sediment traps, depths:- 50,100,200,300m

Sediment traps

48° 27' 0" N 17° 30' 0" W — deployed short-term (2 days) drifting sediment traps, depths:- 50,100,200,300m

Sediment traps

48° 23' 59" N 17° 28' 0" W — deployed short-term (2 days) drifting sediment traps, depths:- 50,100,200,300m

Other biological/fisheries measurement

59° 16' 59" N 21° 3' 0" W — recovered time lapse camera (depth 2879m), laid May 1989

Data held at BODC

Series/Profiles

21 Bottle station

Reference numbers
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Quality control flags

Reference numbers
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Quality control flags

BODC id	Date/Time	Location	Doc.
1249498	1990-05-25 03:48	48° 27' 46" N 17° 34' 20" W
1249542	1990-05-29 07:10	48° 24' 45" N 17° 27' 6" W
1249578	1990-06-01 06:53	48° 16' 45" N 17° 3' 53" W
1249530	1990-05-29 03:08	48° 25' 44" N 17° 27' 32" W
1249462	1990-05-21 10:26	48° 31' 35" N 17° 48' 19" W
1249517	1990-05-27 07:04	48° 26' 40" N 17° 27' 0" W
1249529	1990-05-26 21:47	48° 26' 29" N 17° 29' 9" W
1249437	1990-05-19 10:02	48° 31' 57" N 17° 21' 33" W
1249449	1990-05-19 19:45	48° 31' 8" N 17° 26' 1" W
1249474	1990-05-22 03:10	48° 28' 29" N 17° 51' 29" W
1249486	1990-05-23 06:43	48° 29' 56" N 17° 46' 46" W
1249566	1990-05-31 04:22	48° 23' 37" N 17° 23' 29" W
1249591	1990-06-02 21:15	47° 57' 30" N 16° 44' 10" W
1249609	1990-06-03 03:27	47° 58' 7" N 16° 57' 3" W
1249413	1990-05-16 08:40	59° 0' 19" N 21° 55' 5" W
1249505	1990-05-25 06:39	48° 28' 18" N 17° 32' 38" W
1249554	1990-05-29 19:16	48° 26' 55" N 17° 43' 59" W
1249401	1990-05-15 15:16	58° 59' 34" N 21° 57' 4" W
1249425	1990-05-19 06:53	48° 33' 3" N 17° 19' 49" W
1249450	1990-05-21 06:14	48° 30' 17" N 17° 48' 10" W
1249610	1990-06-03 08:14	47° 53' 24" N 16° 44' 28" W

44 CTD/STD cast

Transmittance and attenuance of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Visible waveband radiance and irradiance measurements in the water column
Density of the water column
Chlorophyll pigment concentrations in water bodies

Transmittance and attenuance of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Visible waveband radiance and irradiance measurements in the water column
Density of the water column
Chlorophyll pigment concentrations in water bodies

BODC id	Date/Time	Location	Doc.
961250	1990-05-19 04:22	48° 34' 22" N 17° 19' 38" W
961274	1990-05-19 09:45	48° 31' 57" N 17° 21' 33" W
961298	1990-05-20 04:31	48° 29' 9" N 17° 34' 40" W
961317	1990-05-21 03:27	48° 29' 44" N 17° 47' 35" W
961330	1990-05-21 04:53	48° 29' 54" N 17° 48' 5" W
961366	1990-05-22 01:42	48° 28' 17" N 17° 51' 34" W
961378	1990-05-22 02:57	48° 28' 28" N 17° 51' 29" W
961391	1990-05-23 00:04	48° 28' 20" N 17° 48' 51" W
961538	1990-05-27 08:05	48° 28' 9" N 17° 27' 31" W
961587	1990-05-29 19:05	48° 26' 55" N 17° 43' 59" W
961599	1990-05-30 10:31	48° 21' 9" N 17° 28' 0" W
961680	1990-06-04 06:57	47° 43' 38" N 16° 33' 33" W
961692	1990-06-04 16:25	47° 42' 12" N 16° 31' 6" W
961262	1990-05-19 05:23	48° 33' 2" N 17° 19' 49" W
961410	1990-05-23 03:57	48° 29' 25" N 17° 48' 8" W
961446	1990-05-24 03:06	48° 25' 31" N 17° 39' 32" W
961618	1990-05-30 19:08	48° 29' 32" N 17° 20' 22" W
961711	1990-06-04 16:45	47° 41' 39" N 16° 29' 46" W
961354	1990-05-21 09:00	48° 31' 35" N 17° 48' 19" W
961409	1990-05-23 03:11	48° 29' 8" N 17° 48' 34" W
961434	1990-05-23 09:10	48° 26' 59" N 17° 43' 54" W
961471	1990-05-25 04:49	48° 28' 13" N 17° 33' 40" W
961329	1990-05-21 04:18	48° 29' 49" N 17° 47' 57" W
961495	1990-05-26 20:15	48° 26' 28" N 17° 29' 9" W
961526	1990-05-27 06:45	48° 26' 40" N 17° 27' 0" W
961631	1990-05-31 04:12	48° 23' 37" N 17° 23' 29" W
961483	1990-05-25 06:25	48° 28' 18" N 17° 32' 38" W
961606	1990-05-30 14:16	48° 20' 43" N 17° 12' 44" W
961237	1990-05-15 14:17	58° 59' 34" N 21° 57' 4" W
961249	1990-05-16 08:16	59° 0' 19" N 21° 55' 5" W
961422	1990-05-23 06:29	48° 29' 57" N 17° 46' 46" W
961514	1990-05-27 05:30	48° 26' 52" N 17° 28' 14" W
961655	1990-06-02 20:58	47° 57' 29" N 16° 44' 10" W
961286	1990-05-19 19:24	48° 31' 8" N 17° 26' 1" W
961502	1990-05-27 03:34	48° 26' 29" N 17° 30' 0" W
961551	1990-05-28 23:20	48° 25' 56" N 17° 28' 27" W
961575	1990-05-29 06:56	48° 24' 45" N 17° 27' 6" W
961643	1990-06-01 06:38	48° 16' 45" N 17° 3' 53" W
961667	1990-06-03 03:17	47° 58' 7" N 16° 57' 3" W
961305	1990-05-21 01:44	48° 30' 3" N 17° 47' 12" W
961342	1990-05-21 05:58	48° 30' 18" N 17° 48' 10" W
961458	1990-05-25 03:43	48° 27' 46" N 17° 34' 21" W
961563	1990-05-29 02:59	48° 25' 45" N 17° 27' 32" W
961679	1990-06-03 07:55	47° 53' 24" N 16° 44' 28" W

Discrete samples

8 Apstein opening-closing mesh zooplankton net

46 CTD frame plus rosette sampler

Bacterial production in the water column
Transmittance and attenuance of the water column
Total dissolved inorganic carbon (TCO2) concentration in the water column
Carotenoid and flavenoid pigment concentrations in water bodies
Particulate total and organic nitrogen concentrations in the water column
Nitrite concentration parameters in the water column
Concentration of alkenones and alkenoates in the water column
Dissolved oxygen parameters in the water column
Phosphate concentration parameters in the water column
Salinity of the water column
Temperature of the water column
Visible waveband radiance and irradiance measurements in the water column
Bacteria generic abundance in water bodies
Silicate concentration parameters in the water column
Microzooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column
Density of the water column
Microzooplankton generic abundance in water bodies
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Metadata parameters
Particulate total and organic carbon concentrations in the water column
Chlorophyll pigment concentrations in water bodies
Partial pressure (pCO2) and fugacity (fCO2) of carbon dioxide in the water column
Primary production in the water column

6 Drifting rig with sediment traps

47 Expendable Bathythermograph

Temperature of the water column

28 Marine snow catcher

5 Multicorer

71 RMT multiple zooplankton net tow

13 Stand-alone pumps

1 Underwater camera system

13 Unspecified zooplankton net or nets

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