Dataset: Diazo Distribution

Name: Abundance and distribution of diazotrophs determined via qPCR from R/V Kilo Moana KM0703, R/V Seward Johnson SJ0609 in the tropical and subtropical SW Pacific and tropical N Atlantic from 2006-2007 (DIAZOTROPHS project)
Published: 2010-10-21
Keywords: oceans

Cite This Dataset

Spatial Extent: N:18.3931 E:149.5967 S:-30.0002 W:-25

Project:

Biology and Ecology of Newly Discovered Diazotrophs in the Open Ocean (DIAZOTROPHS)

Principal Investigator:

Jonathan P. Zehr (University of California-Santa Cruz, UCSC)

Co-Principal Investigator:

Joseph Montoya (Georgia Institute of Technology, GA Tech)

Contact:

Kendra Turk-Kubo (University of California-Santa Cruz, UCSC)

BCO-DMO Data Manager:

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

Version:

21 October 2010

Version Date:

2010-10-21

Validated:

Current State:

Final no updates expected

Abundance and distribution of diazotrophs determined via qPCR from R/V Kilo Moana KM0703, R/V Seward Johnson SJ0609 in the tropical and subtropical SW Pacific and tropical N Atlantic from 2006-2007 (DIAZOTROPHS project)

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Description

Abundance and distribution of diazotrophs determined via qPCR

Methods & Sampling

Refer to individual platform deployments

Data Processing Description

BCO-DMO Processing Notes
Generated from original spreadsheet contributed by Kendra Turk: "Diazo_Distribution_Zehr_forBCO-DMO.xlsx"

BCO-DMO Edits
- CRUISE (cruise ids) inserted
- Parameter names modified to conform to BCO-DMO convention
- "nd" (BCO-DMO flag for no data) inserted into blank fields
- data submitted as seperate cruises combined into one dataset

Data Files

File
Diazo_Distr.csv (Comma Separated Values (.csv), 40.70 KB) MD5:a85f95ad719bc67136955a4cf1778843 Primary data file for dataset ID 3376

More Information about this dataset

Funding Sources

Funding Source	Award Number
Gordon and Betty Moore Foundation	unknown DIAZOTROPHS Moore
NSF Division of Ocean Sciences	OCE-0425363
NSF Division of Ocean Sciences	OCE-0425583

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
KM0703	SPEEDO SPAK	2007-03-14	R/V Kilo Moana	Jonathan P. Zehr (Chief Scientist) Joseph Montoya (Co-Chief Scientist)	data info
SJ0609		2006-06-18	R/V Seward Johnson	Jonathan P. Zehr (Chief Scientist)	data info

Instruments

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

Niskin bottle

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
Cruise	Cruise Id	text	cruiseid
Sample_ID	Unique sample identifier	integer	sample
Station	Station identifier	integer	station
Cast	CTD cast	integer	cast
Bottle	Niskin bottle sampled	integer	bottle
Depth	Depth of water sample	meters	depth
lon	longitude; negative denotes West	decimal degrees	lon
lat	latitude; negative denotes South	decimal degrees	lat
Filter_Size	size fraction associated with sample in microns (um); if 10 then data refers to the size fraction >10 microns; if 0.2 then the data refers to the size fraction between 0.2 and 10 microns	um	filter_size
UCYN_A_nifH_copies	number of nifH genes per liter of seawater from uncultivated unicellular cyanobacteria group A (UCYN-A) as determined using qPCR; undetected (UD) or detected not quantified (DNQ)	L-1	no_bcodmo_term
UCYN_B_nifH_copies	number of nifH genes per liter of seawater from unicellular cyanobacteria group B (UCYN-B); Crocosphaera; as determined using qPCR	L-1	no_bcodmo_term
Trichodesmium_nifH_copies	number of nifH genes per liter of seawater from filamentous; non-heterocystous cyanobacteria Trichodesmium as determined using qPCR; undetected (UD) or detected not quantified (DNQ)	L-1	no_bcodmo_term
RR_het_1_nifH_copies	number of nifH genes per liter of seawater from heterocystous cyanobacteria Richelia associated with Rhizosolenia as determined using qPCR; undetected (UD) or detected not quantified (DNQ)	L-1	no_bcodmo_term
HR_het_2_nifH_copies	number of nifH genes per liter of seawater from heterocystous cyanobacteria Richelia associated with Hemiaulus as determined using qPCR; undetected (UD) or detected not quantified (DNQ)	L-1	no_bcodmo_term
CC_het_3_nifH_copies	number of nifH genes per liter of seawater from heterocystous cyanobacteria Calothrix associated with Chaetoceros as determined using qPCR; undetected (UD) or detected not quantified (DNQ)	L-1	no_bcodmo_term

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Database

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Dataset: Diazo Distribution