Dataset: HADES-M - WATER COLLECTION

Name: HADES-M water collection from R/V Falkor FK141109 from the Mariana Trench adjacent to Guam: approximately 12 45 N and 144 50 E to 11 25 N and 144 25 E; 2014 (HADES project)
Published: 2016-01-27
Keywords: oceans

Cite This Dataset

Spatial Extent: N:12.74384 E:144.74398 S:12.51882 W:144.65367

Project:

Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography (HADES)

Principal Investigator:

Jeffrey C. Drazen (University of Hawai'i, UH)

Co-Principal Investigator:

Dr Patricia Fryer (University of Hawaiʻi at Mānoa, HIGP)

Dr Alan Jamieson (University of Aberdeen, UAberdeen-Oceanlab)

Dr Dan Mayor (University of Aberdeen, UAberdeen-IBES)

Dr Ashley Rowden (New Zealand National Institute of Water and Atmospheric Research, NIWA)

Dr Henry Ruhl (National Oceanography Centre, NOC)

Timothy M. Shank (Woods Hole Oceanographic Institution, WHOI)

Paul Yancey (Whitman College)

Contact:

Jeffrey C. Drazen (University of Hawai'i, UH)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

27 January 2016

Version Date:

2016-01-27

Validated:

Yes

Current State:

Final no updates expected

HADES-M water collection from R/V Falkor FK141109 from the Mariana Trench adjacent to Guam: approximately 12 45 N and 144 50 E to 11 25 N and 144 25 E; 2014 (HADES project)

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Description

List of individual HADES-M samples collected on cruise FK141109 - WATER

Location:
Mariana Trench adjacent to Guam: approximately 12 45 N and 144 50 E to 11 25 N and 144 25 E

Instrument Key
CR   CORE RESPIROMETER
CTD   CTD
LA   ABYSSAL LANDER
LH   HADAL LANDER
RG   ROCK GRAB
TR   FISH TRAP
W   WATER - SURFACE BUCKET
WT   WEE TRAP

Methods & Sampling

Sampling and Analytical Methodology:
Animal samples were collected using a variety of baited traps. Sediment samples were collected using megacores on a free vehicle lander. Rock samples were collected using a van veen style grab on a free vehicle lander. Water samples were collected using a conventional CTD rosette.

Investigator abbreviations are given below. These pertain to the fate of specimens and subsamples of tissues.

INITIAL	NAME	INSTITUTION
AJ	ALAN JAMIESON	UNIVERSITY OF ABERDEEN
CY	CRAIG YOUNG	OREGON STATE
DM	DAN MAYOR	UNIVERSITY OF ABERDEEN
JD	JEFF DRAZEN	UNIVERSITY OF HAWAII
MG	MACKENZIE GERRINGER	UNIVERSITY OF HAWAII
PY	PAUL YANCEY	WHITMAN COLLEGE
SP	STUART PIERTNEY	UNIVERSITY OF ABERDEEN
TL	THOMAS LINLEY	UNIVERSITY OF ABERDEEN
TS	TIM SHANK	WHOI
AD	AMANDA DEMOPOULOS	USGS
EG	ELEANNA GRAMMOPOULOS	UNIVERSITY OF ABERDEEN

Instrument Key
CR   CORE RESPIROMETER
CTD   CTD
LA   ABYSSAL LANDER
LH   HADAL LANDER
RG   ROCK GRAB
TR   FISH TRAP
W   WATER - SURFACE BUCKET
WT   WEE TRAP
WT   WEE TRAP

CORING RESPIROMETER – A free vehicle lander equipped with 4 megacore tubes that are pushed into the sediments by a drive motor after the vehicle lands on the seafloor. Each tube is equipped with an oxygen optode and water mixing pump to measure sediment community oxygen consumption in each core. Each core is trapped by a standard megacore core catching device and returned to the surface with the lander. The instrument also includes an oxygen sensor for the ambient bottom water.

CTD – Conventional CTD rosette was used to take water samples to 5000m depth at several stations.

ABYSSAL LANDER – A free vehicle lander equipped with a still image camera and baited to attract scavengers. Images were taken once every minute. It is rated to 6000m.

HADAL LANDER – A free vehicle lander equipped with a digital video camera and baited to attract scavengers. One minute of video was recorded every 2.5 or every 5 minutes. It is rated to 11000m.

FISH TRAP – A large mesh trap with two smaller PVC tube shaped amphipod traps inside that were baited to capture megafauna. It was deployed as a free vehicle lander.

WEE TRAP – Another baited trap but smaller in size than the fish trap.

Data Processing Description

Data Processing:
Direct counts and measurements of mass and length. Mass was determined aboard ship using a motion compensated scale.

BCO-DMO Processing Notes
- Generated from original file: "HADES.M deployments and samples for BCO-DMO.xlsx" contributed by Jeff Drazen
- Parameter names edited to conform to BCO-DMO naming convention found at Choosing Parameter Name
- "nd" (no data) inserted into blank cells and cells with "-"
- Dates reformatted to YYYYMMDD

Data Files

File
HADESM_Samples_Water.csv (Comma Separated Values (.csv), 384 bytes) MD5:e146beb184a863c1e170fae1a9bce431 Primary data file for dataset ID 636788

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1130494
NSF Division of Ocean Sciences	OCE-1130712
NSF Division of Ocean Sciences	OCE-1131620
Schmidt Ocean Institute	R/V Falkor SOI Hadal Ecosystems Studies Program

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
FK141109	HADES-M HADESM	2014-11-09	R/V Falkor	Jeffrey C. Drazen (Chief Scientist)	data info

Instruments

Bottom Sediment Grab Samplers

Supplied Name: Van Veen Grab

Supplied Description:

Instrument Type

Generic Name: Bottom Sediment Grab Samplers

Acronym: BSGS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/50/

Generic Description:

These samplers are designed to collect an accurate representative sample of the sediment bottom. The bite of the sampler should be deep enough so all depths are sampled equally. The closing mechanism is required to completely close and hold the sample as well as prevent wash-out during retrieval. Likewise, during descent the sampler should be designed to minimize disturbance of the topmost sediment by the pressure wave as it is lowered to the bottom.

bucket

Supplied Name: Water Bucket

Supplied Description:

Instrument Type

Generic Name: bucket

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0536/

Generic Description:

A bucket used to collect surface sea water samples.

CTD Sea-Bird SBE 911plus

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird SBE 911plus

Acronym: CTD SBE 911plus

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/

Generic Description:

The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics

Flounder Trap

Supplied Name: Baited Traps

Supplied Description:

Instrument Type

Generic Name: Flounder Trap

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/63/

Generic Description:

Based on an historical design used previously in the Gulf of Maine to target Winter Flounder, this experimental trap is a converted lobster trap fitted with a standard crab hoop acting as one long entrance. The crab hoop measures 8 inches across and 2 1/2 inches in height and it was hoped that this hoop would allow flatfish, crabs and some finfish to enter while excluding most lobsters. These traps were built by Kelo Pinkham and Jim Lowe, from Boothbay, Maine. Collapsible square fish traps are also available commercially for eel, crawfish and flounder.

HADAL-Lander

Supplied Description:

Instrument Type

Generic Name: HADAL-Lander

Generic Description:

The HADAL-Lander is a free-falling baited lander composed of two major components; the scientific payload and delivery system.

HADAL-Lander A

HADAL-Lander-B

Multi Corer

Supplied Name: Mega Cores

Supplied Description:

Instrument Type

Generic Name: Multi Corer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/51/

Generic Description:

The Multi Corer is a benthic coring device used to collect multiple, simultaneous, undisturbed sediment/water samples from the seafloor. Multiple coring tubes with varying sampling capacity depending on tube dimensions are mounted in a frame designed to sample the deep ocean seafloor. For more information, see Barnett et al. (1984) in Oceanologica Acta, 7, pp. 399-408.

Niskin bottle

Supplied Name: Niskin

Supplied Description:

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
STATION	Station Number	dimensionless	station
DEPLOYMENT	Instrument/Lander Id CR CORE RESPIROMETER CTD CTD LA ABYSSAL LANDER LH HADAL LANDER RG ROCK GRAB TR FISH TRAP W WATER - SURFACE BUCKET WT WEE TRAP	text	instrument
DATE	Date	YYYYMMDD	date
LATITUDE	Latitude (South is negative)	decimal degrees	lat
LONGITUDE	Longitude (West is negative)	decimal degrees	lon
MULTIBEAM_DEPTH	Multibeam Depth	meters	depth_w
SAMPLE_NUMBER	SAMPLE NUMBER	dimensionless	sample
PROCESSED_BY	PROCESSED BY	text	person

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Database

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Dataset: HADES-M - WATER COLLECTION