Dataset: N2 - Nitrogen Fixation Rates

Name: Nitrogen fixation rates derived from acetylene reduction assays from R/V Knorr, R/V Melville, R/V Atlantis KN197-08, MV1110, AT21-04 in the Amazon River plume, 2010-2012 (ANACONDAS project)
Published: 2014-02-12
Keywords: oceans

View Data: Data not available yet

Cite This Dataset

Project:

Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses (ANACONDAS)

Program:

Integrated Marine Biogeochemistry and Ecosystem Research -US (IMBER-US)

Ocean Carbon and Biogeochemistry (OCB)

Emerging Topics in Biogeochemical Cycles (ETBC)

Marine Microbiology Initiative (MMI)

Principal Investigator:

Douglas G. Capone (University of Southern California, USC-WIES)

Co-Principal Investigator:

William M. Berelson (University of Southern California, USC-WIES)

Contact:

Matt Tiahlo (University of Southern California, USC-WIES)

BCO-DMO Data Manager:

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

Version:

(tbd)

Version Date:

2014-02-12

Current State:

Preliminary and in progress

Nitrogen fixation rates derived from acetylene reduction assays from R/V Knorr, R/V Melville, R/V Atlantis KN197-08, MV1110, AT21-04 in the Amazon River plume, 2010-2012 (ANACONDAS project)

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Description

Nitrogen fixation rates derived from acetylene reduction assays

Methods & Sampling

Sampling and Analytical Methodology:
Samples were drawn from CTD mounted Niskin bottles. N2 fixation measurements were
carried out using the acetylene (C2H2) reduction method described by Capone [1993].

Related files and references:
Capone, D. G. (1993), Determination of nitrogenase activity in aquatic samples using the acetylene reduction procedure, in Handbook of Methods in Aquatic Microbial Ecology, edited by P. F. Kemp et al., pp. 621–631, Lewis Press, Boca Raton, Fla

Data Processing Description

Data Processing:
Sample analysis in progress, data not yet available

More Information about this dataset

Funding Sources

None available yet

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT21-04	AN12 ANACONDAS ROCA	2012-07-13	R/V Atlantis	Patricia L. Yager (Chief Scientist)	data info
KN197-08	AN10 ANACONDAS ROCA	2010-05-22	R/V Knorr	Patricia L. Yager (Chief Scientist)	data info
MV1110	AN11 ANACONDAS ROCA	2011-09-03	R/V Melville	Patricia L. Yager (Chief Scientist)	data info

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: CTD 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

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Dataset: N2 - Nitrogen Fixation Rates