Dataset: dive CTD - CROCKS-II
Deployment: AT15-59

CTD data collected during Alvin dives

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)

Version Date:

2012-01-23

Data URL:

https://www.bco-dmo.org/dataset-deployment/454965/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

Sea-Bird SBE 43 Dissolved Oxygen Sensor

Supplied Name: SBE 43 Dissolved Oxygen Sensor

Supplied Description:

Instrument Type

Generic Name: Sea-Bird SBE 43 Dissolved Oxygen Sensor

Acronym: SBE-43 DO

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0036/

Generic Description:

The Sea-Bird SBE 43 dissolved oxygen sensor is a redesign of the Clark polarographic membrane type of dissolved oxygen sensors. more information from Sea-Bird Electronics

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
O2_bottom	bottom dissolved oxygen	milliliters per liter	O2_ml_L
depths_sample	water depths sampled	integers	comment
cast	ctd cast number	integer	cast
station	location of sample	text	site
time	GMT time	hhmm	time
lat	latitude; North is positive	decimal degrees	lat
lon	longitude; East is positive	decimal degrees	lon
depth_w	bottom depth	meters	depth_w
number	number of bottles fired	integer	number
year	year of sampling	yyyy	year
month	month of sampling, GMT	1 to 12	month_gmt
day	day of sampling, GMT	1 to 31	day_gmt
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.	1 to 365	yrday_gmt
O2_surface	surface dissolved oxygen	milliliters per liter	O2_ml_L

Database

Contribute Data

Dataset: dive CTD - CROCKS-II
Deployment: AT15-59

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: dive CTD - CROCKS-IIDeployment: AT15-59

Dataset acquisition description

Dataset Processing Description

Dataset: dive CTD - CROCKS-II
Deployment: AT15-59