Dataset: Benthic foraminiferal abundances
Deployment: OC326

Benthic foraminiferal abundances from Mud Patch multicores

Principal Investigator:

Joan M. Bernhard (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Ocean Acidification, Hypoxia and Warming: Experimental Investigations into Compounded Effects of Global Change on Benthic Foraminifera (OA, Hypoxia and Warming)

Version Date:

2016-12-16

Data URL:

https://www.bco-dmo.org/dataset-deployment/670476/data

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Description

This dataset includes abundance data of benthic forams collected in the Mud Patch.

To serve this dataset on BCO-DMO, the original Excel multi-tiered table had to be extensively re-formatted. Access the originally formatted Excel sheet.

Methods & Sampling

Dataset acquisition description

Foraminiferal bearing sediments were collected using MC800 multicorer, and sliced into selected 1-cm intervals. For samples collected on EN524, surface samples were incubated in CellTracker Green CMFDA. After fixation in buffered formalin, sediments were sieved and all foraminifera were picked from the >125 µm fraction. Specimens from surface samples were examined wet with a Leica MZFLIII epifluorescence microscope to distinguish living from dead individuals. All “hardshelled” specimens were air dried on micropaleontological slides; “softshelled” specimens were kept in small vials containing formalin. The core collected on OC326 was an archival core and not incubated in CellTracker Green or fixed in formalin.

Values presented are number of specimens per 10 cubic centimeters. Counts are not given because picked samples varied in volume.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing Notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- replaced spaces with underscores
- reformatted the data to form a flat table
- added cruise_id column
- version 2017-01-25 replaced version 2016-12-13: in species column, "Total_specimens_#/cc" was replaced with "Total_specimens_#/10cc"

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1219948	NSF Division of Ocean Sciences

Instruments

Fluorescence Microscope

Supplied Name: Leica MZFLIII epifluorescence microscope

Supplied Description:

To examine specimens

Instrument Type

Generic Name: Fluorescence Microscope

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB06/

Generic Description:

Instruments that generate enlarged images of samples using the phenomena of fluorescence and phosphorescence instead of, or in addition to, reflection and absorption of visible light. Includes conventional and inverted instruments.

Multi Corer

Supplied Name: MC800 multicorer

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.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_id	cruise identifier	unitless	cruise_id
sample	sample identifier: cruise-id_ event-number_core-type_sediment-depth_live-or-dead: CTG = core designated for CellTracker Green processing; DC= core designated for downcore analyses	unitless	sample
multicore	multicore identifier: cruise id_ event number(_core type)	unitless	sample
date	date formatted as yyyy-mm-dd	unitless	date
time	UTC time formatted as HH:MM	unitless	time
lat	latitude; north is positive	decimal degrees	lat
lon	longitude; east is positive	decimal degrees	lon
depth_w	depth of water	meters	depth_w
depth_sediment_core	sample depth range of with the multicore	centimeters	depth_core
specimen_type	whether cells were were incubated in CellTracker Green or non-fluorescent	unitless	sample_descrip
species	foraminiferan species	unitless	species
abundance	density of foraminiferans in samples	number of specimens per 10 cubic centimeters	abundance
yrday_utc	UTC day and decimal time:eg. 326.5 for the 326th day of the year or November 22 at 1200 hours (noon)	julian day and fraction of day	yrday_utc
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted based on ISO 8601:2004(E) with format YYYY-mm-ddTHH:MM:SS[.xx]Z	year;month;day;hour;minute;second	ISO_DateTime_UTC

Database

Contribute Data

Dataset: Benthic foraminiferal abundances
Deployment: OC326

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Benthic foraminiferal abundancesDeployment: OC326

Dataset acquisition description

Dataset Processing Description

Dataset: Benthic foraminiferal abundances
Deployment: OC326