Dataset: multicore log - CROCKS-II
Deployment: AT15-59

Multicore log for Atlantis-15-59/Alvin cruise off Costa Rica

Chief Scientist:

Lisa A. Levin (University of California-San Diego, UCSD-SIO)

Co-Chief Scientist:

Victoria J. Orphan (California Institute of Technology, Caltech)

Anthony E Rathburn (Indiana State University, ISU)

Gregory Rouse (University of California-San Diego, UCSD-SIO)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI)

Project:

Short-term colonization processes at Costa Rica methane seeps (Seep Carbonate Ecology CROCKS II)

Current State:

Final no updates expected

Version Date:

2012-01-30

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/455020/data

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Description

Atlantis/Alvin cruise off Costa Rica

The primary goal of the cruise was to recover biological experiments deployed at active and inactive seep areas during Feb./March 2009. We successfully recovered 23/24 experimental units deployed on Mound 12, Costa Rica. One was simply missing on the sea floor. By using a gear elevator each day to maximize sample collection (and reserve ALVIN basket space for experiments) we were able to recover our experiments rapidly. This left us time for exploration of unusual biological communities at Jaco Scar.

Methods & Sampling

Dataset acquisition description

Equipment used: standard Alvin tubecores; Ocean Instruments multicorer; Seabird CTD with O2 sensor.

Where indicated, sediment samples from tube cores were sectioned vertically and preserved in buffered formaldehyde (standard procedures) or frozen at -80ºC.

Colonization substrates had macrofauna (>0.3 mm) and meiofauna (>0.42 microns) removed and preserved. Representative individuals were frozen for subsequent stable isotope analyses.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0825436	NSF Division of Ocean Sciences
OCE-0825791	NSF Division of Ocean Sciences
OCE-0826254	NSF Division of Ocean Sciences
OCE-0939232	NSF Division of Ocean Sciences
OCE-0939557	NSF Division of Ocean Sciences
OCE-0939559	NSF Division of Ocean Sciences

Instruments

Multi Corer

Supplied Description:

Ocean Instruments multicorer

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
lat	latitude; North is positive	decimal degrees	lat
lon	longitude; East is positive	decimal degrees	lon
depth_w	water depth	meters	depth_w
treatment	type of sample	text	sample_type
replicate	replicate information	text	replicate
multicore_id	multicore sample number	text	sample
yrday_gmt	GMT day and decimal time, as 326.5 for the 326th day of the year, or November 22 at 1200 hours (noon). In the case of drifter data, year day may be continuous over a multi year period. No time in this dataset so no decimal is added to the yearday.	1 to 365	yrday_gmt
year	year of sampling.	yyyy	year
month	month, GMT time.	1 to 12	month_gmt
day	day of sampling, GMT	1 to 31	day_gmt
time	time of day in GMT defined as HHMM		time

Database

Contribute Data

Dataset: multicore log - CROCKS-II
Deployment: AT15-59

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: multicore log - CROCKS-IIDeployment: AT15-59

Dataset acquisition description

Dataset Processing Description

Dataset: multicore log - CROCKS-II
Deployment: AT15-59