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   set  data   graph     files  public [HADES-K Sediment Meiofaunal Diversity] - Raw counts of meiofauna identified in sediment
samples from the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/
Thomas G. Thompson during cruise TN309 (HADES-K), May 2014. (Controls on Hadal Megafaunal
Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography)
   ?   F   I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_763758

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String Push cores (6.35 cm diameter) of sediment were collected in situ using the
manipulator arm of the Hybrid Remotely Operated Vehicle Nereus on the margin
of the Kermadec Trench (6013m) and along the main trench axis (7137 to 9177m)
at roughly 1000m increments.

Cores were sectioned at 1cm intervals and sieved for the meiofaunal fraction.

Meiofauna (>300 microns) were enumerated and identified to major taxonomic
groups (16 total) based on the published morphological descriptions of the
taxonomic groups.\u00a0 The data present the total number of individuals in
each of these groups in each core.

Attempts were made to obtain 3 replicate cores at each depth horizon (every
1000 meters from 6000m to 10,000m.\u00a0 For logistical reasons with vehicle
performance (and loss at 10,000), all of the replicates were not able to be
collected.
attribute NC_GLOBAL awards_0_award_nid String 536451
attribute NC_GLOBAL awards_0_award_number String OCE-1131620
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1131620 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Meiofauna from push cores
collected at the Kermadec Trench on R/V Thomas G. Thompson cruise TN309
PI: T. Shank (WHOI)
version: 2019-03-18
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2019-03-27T17:43:37Z
attribute NC_GLOBAL date_modified String 2019-06-17T17:28:56Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.763758.1
attribute NC_GLOBAL Easternmost_Easting double -177.2902527
attribute NC_GLOBAL geospatial_lat_max double -31.93074226
attribute NC_GLOBAL geospatial_lat_min double -35.905159
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -177.2902527
attribute NC_GLOBAL geospatial_lon_min double -178.9612274
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 9177.0
attribute NC_GLOBAL geospatial_vertical_min double 6013.0
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/763758 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String HROV Nereus
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 763766
attribute NC_GLOBAL instruments_0_description String Nereus is an efficient, multi-purpose “hybrid” vehicle that can explore and operate in the crushing pressures of the greatest ocean depths. An unmanned vehicle, Nereus operates in two complementary modes. It can swim freely as an autonomous underwater vehicle (AUV) to survey large areas of the depths, map the seafloor, and give scientists a broad overview. When Nereus locates something interesting, the vehicle’s support team can bring the vehicle back on board the ship and transforms it into a remotely operated vehicle (ROV) tethered to the ship via a micro-thin, fiber-optic cable. Through this tether, Nereus can transmit high-quality, real-time video images and receive commands from skilled pilots on the ship to collect samples or conduct experiments with a manipulator arm.

Technical specifications:


Weight on land: 2,800 kg
Payload capacity: 25 kg
Maximum speed: 3 knots
Batteries: rechargable lithium ion, 15 kilowatt hours in two pressure housings
Thrusters: 2 fore and aft, 2 vertical, 1 lateral (ROV mode) 2 fore and aft, 1 vertical (AUV mode)
Lights: variable output LED array, strobes
Manipulator arm: Kraft TeleRobotics 7-function hydraulic manipulator
Sonar: scanning sonar, forward look and profile, 675 KHz
Sensors: magnetometer, CTD (to measure conductivity, temperature, and depth)


Nereus supports a variety of science operations: Push coring, measuring heat flow, geotechnical and geochemical sensing, rock sampling and drilling, biological sampling, water sampling, high resolution acoustic bathymetry, and optical still and video imagery.

More information is available from the operator site at URL.
attribute NC_GLOBAL instruments_0_instrument_name String HROV Nereus
attribute NC_GLOBAL instruments_0_instrument_nid String 706
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 763768
attribute NC_GLOBAL instruments_1_description String Instruments that generate enlarged images of samples using the phenomena of reflection and absorption of visible light. Includes conventional and inverted instruments. Also called a "light microscope".
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB05/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Microscope-Optical
attribute NC_GLOBAL instruments_1_instrument_nid String 708
attribute NC_GLOBAL instruments_1_supplied_name String Leica MZ APO stereo microscopes
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Push cores were borrowed from the National Deep Submergence Facility to be able to standardize results. The push cores were 6.35cm diameter).
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 763767
attribute NC_GLOBAL instruments_2_description String Capable of being performed in numerous environments, push coring is just as it sounds. Push coring is simply pushing the core barrel (often an aluminum or polycarbonate tube) into the sediment by hand. A push core is useful in that it causes very little disturbance to the more delicate upper layers of a sub-aqueous sediment.

Description obtained from: http://web.whoi.edu/coastal-group/about/how-we-work/field-methods/coring/
attribute NC_GLOBAL instruments_2_instrument_name String Push Corer
attribute NC_GLOBAL instruments_2_instrument_nid String 628287
attribute NC_GLOBAL keywords String amphipoda, annelida, arthropoda, atmospheric, bco, bco-dmo, biological, bivalvia, chemical, collected, copepoda, core, crustacea, data, dataset, date, depth, dmo, erddap, fraction, gastropoda, gastrotricha, geological, individuals, institute, isopoda, kinorhyncha, latitude, Location, longitude, loricifera, management, national, nematoda, niwa, NIWA_id, oceanography, office, ostracoda, overall, Overall_Sample_Progress, preliminary, progress, research, sample, sieve, SieveSize, sipuncula, site, size, states, station, survey, tardigrada, time, united, Unknown_Individuals, usgs, USGS_CoreID, USGS_SampleID, water
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/763758/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/763758 (external link)
attribute NC_GLOBAL Northernmost_Northing double -31.93074226
attribute NC_GLOBAL param_mapping String {'763758': {'Latitude': 'master - latitude', 'Depth': 'master - depth', 'Longitude': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/763758/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_0_affiliation_acronym String WHOI
attribute NC_GLOBAL people_0_person_name String Timothy M. Shank
attribute NC_GLOBAL people_0_person_nid String 536454
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of Hawaii at Manoa
attribute NC_GLOBAL people_1_affiliation_acronym String SOEST
attribute NC_GLOBAL people_1_person_name String Jeffrey C. Drazen
attribute NC_GLOBAL people_1_person_nid String 491313
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Whitman College
attribute NC_GLOBAL people_2_person_name String Paul Yancey
attribute NC_GLOBAL people_2_person_nid String 536477
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Nancy Copley
attribute NC_GLOBAL people_3_person_nid String 50396
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String HADES
attribute NC_GLOBAL projects_0_acronym String HADES
attribute NC_GLOBAL projects_0_description String Extracted from the NSF award abstract:
Severe technical challenges associated with the extremes of hydrostatic pressure have prevented major advances in hadal ecological studies, and relegated hadal systems to among the most poorly investigated habitats on Earth. Through this project, Hadal Ecosystems Studies (HADES) program, PIs will determine the composition and distribution of hadal species, the role of hadal pressures (piezolyte concentrations, enzyme function under pressure), food supply (distribution of POC with the abundance and biomass of trench organisms, and metabolic rates/energetic demand), and depth/topography (genetic divergence and spatial connectivity of populations) have on impacting deep-ocean community structure. This project will examine these factors using the world's first full-ocean depth hybrid remotely operated vehicle (HROV) in conjunction with the only full-ocean depth imaging lander (Hadal-Lander). This project will provide the first seafloor data and samples in one of the world's best, yet little known trenches- the Kermadec Trench (SW Pacific Ocean).  Megafaunal community structure and the relationship between POC and benthic bacterial biomass will be examined as a function of depth and location by systematic high-definition imaging and sediment/faunal sampling transects from abyssal to full trench depths both along and perpendicular to the trench axis. Population genetic approaches will provide levels of genetic divergence and evolutionarily independent lineages to assess the role of depth and topography in trenches and their adjacent abyssal plain in promoting the formation of species. Physiological constraints will be investigated by examining in-situ respiration of selected fauna and tissue concentrations of such protein stabilizers as trimethylamine oxide (TMAO), and the structural adaptations of macromolecules. 
Image of NEREUS Deployment Sites. [click on the image to view a larger version]
attribute NC_GLOBAL projects_0_end_date String 2015-08
attribute NC_GLOBAL projects_0_geolocation String Kermadec Trench adjacent to New Zealand: approximately 37 12.75 S and 178 51.43 E to 31 51.29 S and 176 49.07 W
attribute NC_GLOBAL projects_0_name String Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography
attribute NC_GLOBAL projects_0_project_nid String 536452
attribute NC_GLOBAL projects_0_project_website String https://www.whoi.edu/hades/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2011-09
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -35.905159
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String Site,SieveSize,Sipuncula
attribute NC_GLOBAL summary String This dataset includes raw counts of meiofauna identified in push core samples taken in the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309 (HADES-K), May 2014.
attribute NC_GLOBAL title String [HADES-K Sediment Meiofaunal Diversity] - Raw counts of meiofauna identified in sediment samples from the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309 (HADES-K), May 2014. (Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -178.9612274
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable USGS_SampleID   String  
attribute USGS_SampleID bcodmo_name String sample
attribute USGS_SampleID description String USGS sample identifier
attribute USGS_SampleID long_name String USGS Sample ID
attribute USGS_SampleID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute USGS_SampleID units String unitless
variable Station   String  
attribute Station bcodmo_name String station
attribute Station description String station identifier
attribute Station long_name String Station
attribute Station units String unitless
variable Site   String  
attribute Site bcodmo_name String site
attribute Site description String site name
attribute Site long_name String Site
attribute Site units String unitless
variable Location   String  
attribute Location bcodmo_name String site
attribute Location description String location code
attribute Location long_name String Location
attribute Location units String unitless
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 6013.0, 9177.0
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String sample depth below sea surface
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable DateCollected   String  
attribute DateCollected bcodmo_name String date
attribute DateCollected description String collection date
attribute DateCollected long_name String Date Collected
attribute DateCollected nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute DateCollected source_name String DateCollected
attribute DateCollected time_precision String 1970-01-01
attribute DateCollected units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -35.905159, -31.93074226
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String latitude; north is postivie
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -178.9612274, -177.2902527
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String longitude; east is postivie
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable Overall_Sample_Progress   String  
attribute Overall_Sample_Progress bcodmo_name String comment
attribute Overall_Sample_Progress description String status of sorting: complete or not started
attribute Overall_Sample_Progress long_name String Overall Sample Progress
attribute Overall_Sample_Progress units String unitless
variable USGS_CoreID   String  
attribute USGS_CoreID bcodmo_name String sample
attribute USGS_CoreID description String USGS core sample identifier
attribute USGS_CoreID long_name String USGS Core ID
attribute USGS_CoreID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute USGS_CoreID units String unitless
variable Fraction   String  
attribute Fraction bcodmo_name String depth_core
attribute Fraction description String core fraction??
attribute Fraction long_name String Fraction
attribute Fraction units String centimeters
variable SieveSize   String  
attribute SieveSize bcodmo_name String net_mesh
attribute SieveSize description String sieve mesh size
attribute SieveSize long_name String Sieve Size
attribute SieveSize units String microns
variable NIWA_id   String  
attribute NIWA_id bcodmo_name String sample
attribute NIWA_id description String NIWA sample identifier
attribute NIWA_id long_name String NIWA Id
attribute NIWA_id nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute NIWA_id units String unitless
variable ANNELIDA   byte  
attribute ANNELIDA _FillValue byte 127
attribute ANNELIDA actual_range byte 0, 8
attribute ANNELIDA bcodmo_name String taxon
attribute ANNELIDA description String Number of Annelida identified in sample
attribute ANNELIDA long_name String ANNELIDA
attribute ANNELIDA units String individuals
variable ARTHROPODA   short  
attribute ARTHROPODA _FillValue short 32767
attribute ARTHROPODA actual_range short 11, 568
attribute ARTHROPODA bcodmo_name String taxon
attribute ARTHROPODA description String Number of Arthropoda identified in sample
attribute ARTHROPODA long_name String ARTHROPODA
attribute ARTHROPODA units String individuals
variable Crustacea   short  
attribute Crustacea _FillValue short 32767
attribute Crustacea actual_range short 11, 568
attribute Crustacea bcodmo_name String taxon
attribute Crustacea description String Number of Crustacea identified in sample
attribute Crustacea long_name String Crustacea
attribute Crustacea units String individuals
variable Amphipoda   byte  
attribute Amphipoda _FillValue byte 127
attribute Amphipoda actual_range byte 0, 1
attribute Amphipoda bcodmo_name String taxon
attribute Amphipoda description String Number of Amphipoda identified in sample
attribute Amphipoda long_name String Amphipoda
attribute Amphipoda units String individuals
variable Copepoda   short  
attribute Copepoda _FillValue short 32767
attribute Copepoda actual_range short 11, 567
attribute Copepoda bcodmo_name String taxon
attribute Copepoda description String Number of Copepoda identified in sample
attribute Copepoda long_name String Copepoda
attribute Copepoda units String individuals
variable Isopoda   byte  
attribute Isopoda _FillValue byte 127
attribute Isopoda actual_range byte 0, 1
attribute Isopoda bcodmo_name String taxon
attribute Isopoda description String Number of Isopoda identified in sample
attribute Isopoda long_name String Isopoda
attribute Isopoda units String individuals
variable Ostracoda   byte  
attribute Ostracoda _FillValue byte 127
attribute Ostracoda actual_range byte 0, 3
attribute Ostracoda bcodmo_name String taxon
attribute Ostracoda description String Number of Ostracoda identified in sample
attribute Ostracoda long_name String Ostracoda
attribute Ostracoda units String individuals
variable Kinorhyncha   byte  
attribute Kinorhyncha _FillValue byte 127
attribute Kinorhyncha actual_range byte 0, 10
attribute Kinorhyncha bcodmo_name String taxon
attribute Kinorhyncha description String Number of Kinorhynch identified in samplea
attribute Kinorhyncha long_name String Kinorhyncha
attribute Kinorhyncha units String individuals
variable Bivalvia   byte  
attribute Bivalvia _FillValue byte 127
attribute Bivalvia actual_range byte 0, 2
attribute Bivalvia bcodmo_name String taxon
attribute Bivalvia description String Number of Bivalvia identified in sample
attribute Bivalvia long_name String Bivalvia
attribute Bivalvia units String individuals
variable Gastropoda   byte  
attribute Gastropoda _FillValue byte 127
attribute Gastropoda actual_range byte 6, 23
attribute Gastropoda bcodmo_name String taxon
attribute Gastropoda description String Number of Gastropoda identified in sample
attribute Gastropoda long_name String Gastropoda
attribute Gastropoda units String individuals
variable Sipuncula   byte  
attribute Sipuncula _FillValue byte 127
attribute Sipuncula actual_range byte 0, 0
attribute Sipuncula bcodmo_name String taxon
attribute Sipuncula description String Number of Sipuncula identified in sample
attribute Sipuncula long_name String Sipuncula
attribute Sipuncula units String individuals
variable Nematoda   short  
attribute Nematoda _FillValue short 32767
attribute Nematoda actual_range short 801, 2851
attribute Nematoda bcodmo_name String taxon
attribute Nematoda description String Number of Nematoda identified in sample
attribute Nematoda long_name String Nematoda
attribute Nematoda units String individuals
variable Loricifera   byte  
attribute Loricifera _FillValue byte 127
attribute Loricifera actual_range byte 0, 5
attribute Loricifera bcodmo_name String taxon
attribute Loricifera description String Number of Loricifera identified in sample
attribute Loricifera long_name String Loricifera
attribute Loricifera units String individuals
variable Tardigrada   byte  
attribute Tardigrada _FillValue byte 127
attribute Tardigrada actual_range byte 0, 3
attribute Tardigrada bcodmo_name String taxon
attribute Tardigrada description String Number of Tardigrada identified in sample
attribute Tardigrada long_name String Tardigrada
attribute Tardigrada units String individuals
variable Gastrotricha   byte  
attribute Gastrotricha _FillValue byte 127
attribute Gastrotricha actual_range byte 0, 3
attribute Gastrotricha bcodmo_name String taxon
attribute Gastrotricha description String Number of Gastrotricha identified in sample
attribute Gastrotricha long_name String Gastrotricha
attribute Gastrotricha units String individuals
variable Unknown_Individuals   byte  
attribute Unknown_Individuals _FillValue byte 127
attribute Unknown_Individuals actual_range byte 1, 108
attribute Unknown_Individuals bcodmo_name String taxon
attribute Unknown_Individuals description String Number of unidentified individuals in sample
attribute Unknown_Individuals long_name String Unknown Individuals
attribute Unknown_Individuals units String individuals

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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