Dataset: Sediment trap C N and Isotope Flux

Name: Sediment trap carbon, nitrogen, and isotope flux from the "SalpPOOP" cruise on R/V Tangaroa during October and November 2018
Published: 2020-07-08
Keywords: oceans

View Data: Data not available yet

Cite This Dataset

Spatial Extent: N:-42.654 E:-179.7765 S:-45.54917 W:174.11167

Temporal Extent: 2018-10-24 - 2018-11-15

Project:

Collaborative Research: Quantifying trophic roles and food web ecology of salp blooms of the Chatham Rise (Salp Food Web Ecology)

Principal Investigator:

Michael Stukel (Florida State University, FSU)

Co-Principal Investigator:

Moira Decima (National Institute of Water and Atmospheric Research, New Zealand, NIWA)

Thomas Kelly (Florida State University, FSU)

Scott Nodder (National Institute of Water and Atmospheric Research, New Zealand, NIWA)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-07-08

Restricted:

Yes

Release Date:

2021-03-01

Validated:

Yes

Current State:

Final no updates expected

Sediment trap carbon, nitrogen, and isotope flux from the "SalpPOOP" cruise on R/V Tangaroa during October and November 2018

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Acquisition Description

Data comes from VERTEX-style, surface-tethered, drifting sediment trap deployments. Particle interceptor tubes were deployed on cross-pieces with 16 tubes attached. Tubes were deployed with a dense formaldehyde brine created by adding NaCl and formaldehyde to filtered seawater. After recovery, overlying seawater was removed from each cruise by gentle suction. Tubes were then gravity filtered through a 200-micron nitex mesh filter, and the 200-micron filters were carefully analyzed under a stereomicroscope and all metazoan zooplankton "swimmers" were removed from the sample. Material remaining on the 200-micron filters (i.e., sinking material) was then imaged with a macrophotography rig and subsequently rinsed back into the original sample tube (i.e., re-combined with the <200-micron sinking material). Samples were then separated and filtered onto different types of filters for a suite of different analyses including: particulate organic carbon flux, particulate nitrogen flux, carbon and nitrogen isotopes, chlorophyll a and phaeopigment flux, microscopy, genetic analyses, and 234Th flux.

Samples for particulate organic carbon flux were vacuum filtered through pre-combusted GF/F filters at low pressure. Samples were then frozen at -80C and stored for the duration of the cruise. They were then dried out for shipping. On land they were acidified by fuming with HCl. Samples were then thoroughly dried and packed into pre-combusted tin cups. They were analyzed by isotope ratio mass spectrometer at the UC Davis Stable Isotope Facility for carbon, nitrogen, carbon isotopes, and nitrogen isotopes.

Processing Description

BCO-DMO Processing:
- converted latitude values from degrees South to degrees North;
- rounded lat and lon to 5 decimal places;
- added UTC date/time fields in ISO8601 format;
- renamed fields.

Data Files

These data are restricted until 2021-03-01.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1756465
NSF Division of Ocean Sciences	OCE-1756610

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
TAN1810	SalpPOOP	2018-10-23	R/V Tangaroa	Moira Decima (Chief Scientist)	data info

Instruments

Camera

Supplied Name: macrophotography rig

Supplied Description:

Instrument Type

Generic Name: Camera

Acronym: camera

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/311/

Generic Description:

All types of photographic equipment including stills, video, film and digital systems.

Isotope-ratio Mass Spectrometer

Supplied Name: isotope ratio mass spectrometer

Supplied Description:

Instrument Type

Generic Name: Isotope-ratio Mass Spectrometer

Acronym: IR Mass Spec

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/

Generic Description:

The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).

Microscope - Optical

Supplied Name: stereomicroscope

Supplied Description:

Instrument Type

Generic Name: Microscope - Optical

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB05/

Generic Description:

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".

Sediment Trap

Supplied Name: VERTEX-style, surface-tethered, drifting sediment trap

Supplied Description:

Instrument Type

Generic Name: Sediment Trap

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/33/

Generic Description:

Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. This designation is used when the specific type of sediment trap was not specified by the contributing investigator.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	Cruise name	unitless	cruise_name
Cycle	Lagrangian experiment number	unitless	exp_id
Date_Deployed	Date/time of deployment (New Zealand ST); format: MM/DD/YY hh:mm	unitless	date_local
Deployed_ISO_DateTime_UTC	Date/time of deployment (UTC) formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ	unitless	ISO_DateTime_UTC
Date_Recovered	Date/time of recovery (New Zealand ST); format: MM/DD/YY hh:mm	unitless	date_local
Recovered_ISO_DateTime_UTC	Date/time of recovery (UTC) formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ	unitless	ISO_DateTime_UTC
Duration	Duration of deployment	days	duration
Deployment_Lat	Latitude of deployment (positive values = North)	degrees North	lat
Deployment_Lon	Longitude of deployment (positive values = East)	degrees East	lon
Recovery_Lat	Latitude of recovery (positive values = North)	degrees North	lat
Recovery_Lon	Longitude of recovery (positive values = East)	degrees East	lon
Depth	Depth of deployment	meters (m)	depth
Corg	Particulate organic carbon flux	milligrams C per square meter per day (mg C m-2 d-1)	POC
Corg_stdev	Standard deviation of organic carbon flux	milligrams C per square meter per day (mg C m-2 d-1)	POC
Norg	Particulate nitrogen flux	milligrams N per square meter per day (mg N m-2 d-1)	N
Norg_stdev	Standard deviation of particulate nitrogen flux	milligrams N per square meter per day (mg N m-2 d-1)	N
Chl	Chlorophyll a	micrograms chl a per square meter per day (ug chl a m-2 d-1)	chl_a
Chl_stdev	Standard deviation of chlorophyll a	micrograms chl a per square meter per day (ug chl a m-2 d-1)	chl_a
Phaeo	Phaeo	micrograms chl a per square meter per day (ug chl a m-2 d-1)	phaeo
Phaeo_stdev	Standard deviation of phaeo	micrograms chl a per square meter per day (ug chl a m-2 d-1)	phaeo
d13C	d13C of sinking particles	?	d13C
d13C_stdev	Standard deviation of d13C	?	d13C
d15N	d15N of sinking particles	?	d15N
d15N_stdev	Standard deviation of d15N	?	d15N
Salp_Pellet_Mass	Salp pellet mass	milligrams C per square meter per day (mgC m-2 d-1)	mass
Mass_stdev	Standard deviation of salp pellet mass	milligrams C per square meter per day (mgC m-2 d-1)	mass

Database

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Dataset: Sediment trap C N and Isotope Flux