BODC Cruise Metadata Report for RRS Discovery (74E3) cruise D300
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | RRS Discovery (74E3) cruise D300 |
|---|---|
| Short name | D300 |
| Objectives and Narrative |
The principal objective of the cruise was to assess how biogeochemical composition and flux of OM to the deep-sea floor drives benthic community structure, dynamics and diversity at two sites with contrasting primary production regimes.
Specific hypotheses to be tested: 1. That the variability in biogeochemical composition as well as the total flux of OM reaching the abyssal seafloor is dependent on the productivity of overlying surface waters. 2. That the biogeochemical composition of incoming OM is imprinted on the biochemistry of key detritovores. 3. That key nano-nutrients are critical for the reproduction of some deep-sea species and thus variations in OM flux affect sediment community structure and diversity. 4. That variations in total OM flux also influence benthic rate processes (e.g. faunal activity). The cruise of RRS Discovery (D300) to the Crozet Plateau in the Southern Indian Ocean to the south east of South Africa was the field phase of the NERC project (NER/A/S/2003/00573) tackling this issue. We focused our studies on two contrasting areas of surface productivity around the Crozet Plateau (Southern Indian Ocean). We adopted an integrated, multidisciplinary approach which involves assessment the OM input to the deep-sea floor (export production), the ambient biogeochemistry of the sediment surface, the benthic community structure and diversity (molecular and morphological approaches), the activity of fish (seabed lander experimentation), the uptake of specific biochemicals by key species and their influence on reproductive processes. Eutrophic and oligotrophic conditions occur in well-constrained areas around the Crozet Plateau, but in close proximity to each other. To the south of the plateau is an oligotrophic High Nutrient Low Chlorophyll (HNLC) zone, typical of the Southern Ocean; to the north, however, is an area where annual blooms of primary production occur consistently, over the same area with the same temporal evolution. The bloom reaches its peak in October or November and collapses back close to the Crozet Plateau by December (Pollard et al., 2002). These eutrophic waters cover a large area despite being embedded within the HNLC zone. The study area is ideal for assessing the impact of changing biogeochemical composition of OM on the benthos because we can compare two communities that are: 1. At the same depth, 2. In the same physical (topographic and hydrographic) setting and 3. Interconnected (there is no physical barrier between them). The Cruise sailed from Port Elizabeth on 1st December 2005 and docked at Capetown on 14th January 2006. |
| Ship | RRS Discovery |
| Departure Port | Port Elizabeth, South Africa |
| Departure Date | 2005-12-01 |
| Arrival Port | Cape Town, South Africa |
| Arrival Date | 2006-01-14 |
| Principal Scientist(s) | George Wolff (University of Liverpool Department of Earth and Ocean Sciences) |
| Responsible Organisation | University of Liverpool Department of Earth and Ocean Sciences |
| Associated Project(s) | Crozet |
| IHB Sea Areas Visited | Indian Ocean |
| Marsden Squares Visited | 475 |
| Work Area Description | Crozet Islands |
| Unable to lookup cruise bounds at this time | |
| Work Area Bounding Polygon | |
| Southern Limit | unknown |
| Northern Limit | unknown |
| Western Limit | unknown |
| Eastern Limit | unknown |
Cruise Inventory Datasets
| Physical oceanography | |
|---|---|
| CTD stations |
Quantity:
number of profiles =
10
Description: CTD, full water column for salinity, T, chlorophyll, dissolved O2 |
| Water bottle stations |
Quantity:
number of profiles =
10
Description: CTD, full water column depth for nutrient analysis |
| Chemical oceanography | |
| Nitrate |
Quantity:
number of profiles =
10
Description: CTD, full water column depth for nutrient analysis |
| Nitrite |
Quantity:
number of profiles =
10
Description: CTD, full water column depth for nutrient analysis |
| Other chemical oceanographic measurements |
Quantity:
number of profiles =
2
Description: CTD for Helium/tritium analysis |
| Oxygen |
Quantity:
number of cores =
9
Description: Cores collected using Megacorer for pore water oxygen measurements |
| Oxygen |
Quantity:
number of profiles =
10
Description: CTD, full water column for salinity, T, chlorophyll, dissolved O2 |
| Phosphate |
Quantity:
number of profiles =
10
Description: CTD, full water column depth for nutrient analysis |
| Total - N |
Quantity:
number of samples =
161
Description: Underway samples for nutrient analysis |
| Total - P |
Quantity:
number of samples =
161
Description: Underway samples for nutrient analysis |
| Trace elements |
Quantity:
number of samples =
10
Description: SAPS large volume in situ filtration system for particulate iron |
| Trace elements |
Quantity:
number of samples =
160
Description: Underway samples for iron analysis |
| Biology and fisheries | |
| Benthic bacteria/micro-organisms |
Quantity:
number of cores =
11
Description: Cores collected using Megacorer for determination of bacterial populations |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of cores =
17
Description: Cores collected using Megacorer for pigment measurements |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of cores =
13
Description: Cores collected using Megacorer for TOC, TN, lipids |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of cores =
5
Description: Cores collected using Megacorer for Hydrolysable amino acids |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of samples =
4
Description: SAPS large volume in situ filtration system for archaebacterial lipids and proxies |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of samples =
10
Description: SAPS large volume in situ filtration system for organic biogeochemistry |
| Demersal fish |
Quantity:
number of deployments =
5
Description: ROBIO. RObust BIOdiversity Lander. Time-lapse photography with baited camera system, photographs taken to assess demersal fish populations and activity |
| Demersal fish |
Quantity:
number of deployments =
6
Description: FRESP. The Fish RESPirometry Lander. Autonomous baited respirometry trap, video of demersal fish behaviour and in situ measurement of oxygen consumption |
| Exploratory fishing |
Quantity:
number of hauls =
6
Description: Benthic Otter Trawls. Collection of invertebrate megafauna and demersal fish. |
| Other biological/fisheries measurement |
Quantity:
number of cores =
8
Description: Cores collected using Megacorer for metazoan meiofauna |
| Other biological/fisheries measurement |
Quantity:
number of cores =
9
Description: Cores collected using Megacorer for study of polychaete populations |
| Other biological/fisheries measurement |
Quantity:
number of cores =
9
Description: Cores collected using Megacorer for study of nematode populations |
| Other biological/fisheries measurement |
Quantity:
number of cores =
9
Description: Cores collected using Megacorer for protozoan meiofauna |
| Other biological/fisheries measurement |
Quantity:
number of cores =
13
Description: Cores collected using Megacorer for macrofauna |
| Other biological/fisheries measurement |
Quantity:
number of deployments =
5
Description: WASP sea floor photography and video for study of benthic megafaunal populations |
| Particulate organic matter (inc POC, PON) |
Quantity:
number of profiles =
4
Description: CTD sample, full water column depth for POC and PN |
| Pelagic bacteria/micro-organisms |
Quantity:
number of samples =
2
Description: SAPS large volume in situ filtration system for bacterial populations |
| Pelagic bacteria/micro-organisms |
Quantity:
number of samples =
2
Description: Bottom water collected for bacterial populations |
| Phytoplankton pigs (eg chlorophyll, fluorescence) |
Quantity:
number of samples =
161
Description: Underway samples for chlorophyll analysis |
| Phytoplankton pigs (eg chlorophyll, fluorescence) |
Quantity:
number of profiles =
10
Description: CTD, full water column for salinity, T, chlorophyll, dissolved O2 |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 47° 45' S | 52° 52' E | Biochemical measurements (eg lipids, amino acids) | Sediment trap 1973 m, Current meter 1975 m, deployed 6/1/2005 (D285); recovered 26/12/2005 |
| 44° 30' S | 50° 0' E | Biochemical measurements (eg lipids, amino acids) | Sediment trap 2000 m, Current meter 2004 m; deployed 20/12/2004, recovered 8/12/2005 |
| 46° 0' S | 56° 4' E | Biochemical measurements (eg lipids, amino acids) | Sediment traps 2001, 3195 m Current meters 2003, 3199 m; deployed 26/12/2004, recovered 20/12/2005 |
| 49° 0' S | 51° 30' E | Biochemical measurements (eg lipids, amino acids) | Sediment traps 2007, 3183 m Current meters 2010, 3186 m; deployed 3/1/2005, recovered 3/1/2006 |
| 49° 0' S | 51° 28' E | Other biological/fisheries measurement | Bathysnap camera system 4202 m; deployed, failed to recover |
| 46° 0' S | 56° 7' E | Other biological/fisheries measurement | Bathysnap camera system 4264 m; deployed 28/12/2004, recovered 1/1/2006 |
| 47° 45' S | 52° 52' E | Particulate organic matter (inc POC, PON) | Sediment trap 1973 m, Current meter 1975 m, deployed 6/1/2005 (D285); recovered 26/12/2005 |
| 44° 30' S | 50° 0' E | Particulate organic matter (inc POC, PON) | Sediment trap 2000 m, Current meter 2004 m; deployed 20/12/2004, recovered 8/12/2005 |
| 46° 0' S | 56° 4' E | Particulate organic matter (inc POC, PON) | Sediment traps 2001, 3195 m Current meters 2003, 3199 m; deployed 26/12/2004, recovered 20/12/2005 |
| 49° 0' S | 51° 30' E | Particulate organic matter (inc POC, PON) | Sediment traps 2007, 3183 m Current meters 2010, 3186 m; deployed 3/1/2005, recovered 3/1/2006 |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 23 | Acoustic doppler current profiler |
Acoustic backscatter in the water column Date and time Horizontal platform movement Horizontal spatial co-ordinates Horizontal velocity of the water column (currents) Metadata parameters Raw current meter output parameters Vertical spatial coordinates Vertical velocity of the water column (currents) |
| 9 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Date and time Electrical conductivity of the water column Reference numbers Salinity of the water column Temperature of the water column Transmittance and attenuance of the water column Vertical spatial coordinates |
| 1 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Date and time Electrical conductivity of the water column Reference numbers Salinity of the water column Temperature of the water column Vertical spatial coordinates |
| 1 | Pumped water sample |
Chlorophyll pigment concentrations in water bodies Date and time Horizontal spatial co-ordinates |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 679556 | Acoustic doppler current profiler | 2005-12-01 13:56Z to 2005-12-03 11:57Z | 33° 55' S to 29° 50' S; 25° 46' E to 31° 10' E | Click for more |
| 679568 | Acoustic doppler current profiler | 2005-12-03 11:59Z to 2005-12-05 11:57Z | 35° 28' S to 29° 51' S; 31° 3' E to 37° 58' E | Click for more |
| 679581 | Acoustic doppler current profiler | 2005-12-05 11:59Z to 2005-12-07 11:58Z | 41° 22' S to 35° 28' S; 37° 59' E to 46° 8' E | Click for more |
| 679593 | Acoustic doppler current profiler | 2005-12-07 12:00Z to 2005-12-09 11:58Z | 45° 5' S to 41° 22' S; 46° 8' E to 52° 43' E | Click for more |
| 679600 | Acoustic doppler current profiler | 2005-12-09 12:00Z to 2005-12-11 11:58Z | 46° 0' S to 45° 5' S; 52° 43' E to 57° 0' E | Click for more |
| 679612 | Acoustic doppler current profiler | 2005-12-11 12:00Z to 2005-12-13 11:58Z | 46° 1' S to 45° 43' S; 56° 4' E to 56° 57' E | Click for more |
| 679624 | Acoustic doppler current profiler | 2005-12-13 12:00Z to 2005-12-14 11:58Z | 45° 54' S to 45° 50' S; 56° 6' E to 56° 27' E | Click for more |
| 679636 | Acoustic doppler current profiler | 2005-12-14 12:00Z to 2005-12-16 11:58Z | 46° 4' S to 45° 43' S; 56° 6' E to 56° 57' E | Click for more |
| 679648 | Acoustic doppler current profiler | 2005-12-16 12:00Z to 2005-12-18 11:58Z | 45° 56' S to 45° 28' S; 56° 6' E to 56° 50' E | Click for more |
| 679661 | Acoustic doppler current profiler | 2005-12-18 12:00Z to 2005-12-20 11:58Z | 46° 1' S to 45° 45' S; 55° 56' E to 56° 25' E | Click for more |
| 679673 | Acoustic doppler current profiler | 2005-12-20 12:00Z to 2005-12-22 11:59Z | 45° 56' S to 45° 28' S; 56° 6' E to 56° 45' E | Click for more |
| 679685 | Acoustic doppler current profiler | 2005-12-22 12:01Z to 2005-12-24 05:59Z | 45° 59' S to 45° 49' S; 55° 49' E to 56° 27' E | Click for more |
| 679697 | Acoustic doppler current profiler | 2005-12-24 06:01Z to 2005-12-24 10:59Z | 45° 52' S to 45° 50' S; 56° 5' E to 56° 10' E | Click for more |
| 679704 | Acoustic doppler current profiler | 2005-12-25 07:59Z to 2005-12-26 11:57Z | 47° 38' S to 45° 54' S; 53° 3' E to 55° 55' E | Click for more |
| 679716 | Acoustic doppler current profiler | 2005-12-26 11:59Z to 2005-12-28 11:57Z | 49° 12' S to 47° 38' S; 50° 39' E to 53° 3' E | Click for more |
| 679728 | Acoustic doppler current profiler | 2005-12-28 11:59Z to 2005-12-30 11:57Z | 49° 15' S to 48° 52' S; 50° 51' E to 51° 27' E | Click for more |
| 679741 | Acoustic doppler current profiler | 2005-12-30 11:59Z to 2006-01-01 11:59Z | 49° 13' S to 48° 52' S; 50° 58' E to 51° 31' E | Click for more |
| 679753 | Acoustic doppler current profiler | 2006-01-01 12:01Z to 2006-01-03 12:05Z | 49° 8' S to 48° 57' S; 50° 55' E to 51° 42' E | Click for more |
| 679765 | Acoustic doppler current profiler | 2006-01-03 12:07Z to 2006-01-05 12:10Z | 49° 7' S to 48° 58' S; 51° 9' E to 51° 15' E | Click for more |
| 679777 | Acoustic doppler current profiler | 2006-01-05 12:12Z to 2006-01-07 12:16Z | 49° 1' S to 43° 31' S; 49° 1' E to 51° 55' E | Click for more |
| 679789 | Acoustic doppler current profiler | 2006-01-07 12:18Z to 2006-01-09 12:21Z | 43° 28' S to 38° 58' S; 39° 58' E to 48° 58' E | Click for more |
| 679790 | Acoustic doppler current profiler | 2006-01-09 12:23Z to 2006-01-11 12:26Z | 38° 57' S to 36° 56' S; 29° 1' E to 39° 52' E | Click for more |
| 679808 | Acoustic doppler current profiler | 2006-01-11 12:28Z to 2006-01-13 13:32Z | 36° 55' S to 35° 4' S; 19° 41' E to 28° 54' E | Click for more |
| 681407 | CTD/STD cast | 2005-12-08 17:35Z to 2005-12-08 18:44Z | 44° 28' S, 50° 0' E | Click for more |
| 681419 | CTD/STD cast | 2005-12-14 10:19Z to 2005-12-14 11:35Z | 45° 53' S, 56° 24' E | Click for more |
| 681420 | CTD/STD cast | 2005-12-11 12:03Z to 2005-12-11 13:19Z | 46° 0' S, 56° 15' E | Click for more |
| 681432 | CTD/STD cast | 2005-12-23 22:28Z to 2005-12-23 23:48Z | 45° 55' S, 56° 24' E | Click for more |
| 681444 | CTD/STD cast | 2005-12-30 18:00Z to 2005-12-30 19:19Z | 49° 10' S, 51° 10' E | Click for more |
| 681456 | CTD/STD cast | 2006-01-03 22:12Z to 2006-01-03 22:52Z | 49° 4' S, 51° 13' E | Click for more |
| 681468 | CTD/STD cast | 2006-01-04 21:21Z to 2006-01-04 22:37Z | 49° 1' S, 51° 13' E | Click for more |
| 681481 | CTD/STD cast | 2005-12-28 16:23Z to 2005-12-28 17:46Z | 49° 3' S, 51° 17' E | Click for more |
| 681493 | CTD/STD cast | 2006-01-06 05:17Z to 2006-01-06 05:29Z | 46° 30' S, 51° 55' E | Click for more |
| 681500 | CTD/STD cast | 2006-01-06 11:21Z to 2006-01-06 11:24Z | 46° 22' S, 51° 49' E | Click for more |
| 1651526 | Pumped water sample | 2005-12-05 16:16Z to 2006-01-08 09:10Z | 49° 3' S to 44° 0' N; 38° 31' E to 57° 0' E | Click for more |
Project Database
| # Events | Gear Type | Parameters Held |
|---|---|---|
| 36 | Multicorer |
Concentration of aliphatic hydrocarbons in sediment samples
Sediment lipid concentrations Concentration of carbohydrates, phenols, alkanols (alcohols), ethers, aldehydes and ketones in sediment Dissolved oxygen parameters for sediments Phaeopigment concentrations in sediment Concentration of alkenones and alkenoates in sediment Carotenoid pigment concentrations in sediment Chlorophyll pigment concentrations in sediment Carbon concentrations in sediment Nitrogen concentrations in sediment Inorganic chemical composition of sediment or rocks |
| 13 | Stand-alone pumps |
Water body lipid concentrations
Particulate metal concentrations in the water column Particulate total and organic nitrogen concentrations in the water column Concentration of alkenones and alkenoates in the water column Concentration of suspended particulate material in the water column Concentration of carbohydrates, phenols, alkanols (alcohols), aldehydes and ketones in water bodies Particulate total and organic carbon concentrations in the water column |
| 317 | Sample taken from ship's non-toxic supply |
Salinity of the water column
Chlorophyll pigment concentrations in water bodies |
| 10 | CTD frame plus rosette sampler |
Salinity of the water column
|
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
