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Oceanic Photosynthetic Pigment Concentrations Measured during the JGOFS Equatorial Pacific Process Study (EQPAC)
Entry ID: JGOFS_EQPAC_PIG


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Summary
Abstract: The Equatorial Pacific Process Study (EQPAC) was conducted along 140 deg W
longitude during 1992.

Four cruises took place: February 3 - March 9, March 19 - April 15,
August 5 - September 18, and September 24 - October 21. A fifth benthic
cruise and sediment trap legs were added. During the first cruise
(TT007), 15 stations were occupied along 140 deg W longitude from
12 deg N latitude to 12 deg S latitude. During the second cruise
(TT008), data were collected at 8 stations along 140 deg W longitude
from 9 deg S latitude to 9 deg N latitude. During the third cruise
(TT011), data were collected at 15 stations along 140 deg W from 12 deg N
latitude to 12 deg S latitude. During the fourth cruise (TT012), data were
collected at 5 stations along 140 deg W longitude from 17 deg S
latitude to the equator.

Chlorophyll-a and total phaeopigment concentrations were measured
by fluorometer on both the CTD rosette casts and the TM (clean trace
metal) rosette casts. The following pigments were also measured on
the CTD rosette casts only: phycoerythrin; chlorophyll b;
chlorophylls c1, c2 and c3; chlorophyllide a; peridinin; fucoxanthin;
prasinoxanthin; violaxanthin; diadinoxanthin; alloxanthin;
diatoxanthin; zeaxanthin; alpha-carotene; and beta-carotene. In addition to
pigment concentrations, pigment size fractions were also measured for
the pigments measured on the CTD rosette casts.

The data is public domain and can be retrieved on-line at
"http://usjgofs.whoi.edu/jg/dir/jgofs/"

[The information in this summary was taken from the JGOFS
World Wide Web pages.]

Related URL
Link: GET DATA
Description: Access US JGOFS data


Link: VIEW PROJECT HOME PAGE
Description: US JGOFS Home Page


Geographic Coverage
 N: 12.0 S: -17.0  E: -140.0  W: -140.0

Temporal Coverage
Start Date: 1992-02-03
Stop Date: 1992-09-18


Location Keywords
OCEAN > PACIFIC OCEAN
GEOGRAPHIC REGION > EQUATORIAL


Science Keywords
OCEANS >OCEAN CHEMISTRY >PIGMENTS >PHAEOPIGMENTS    [Definition]
OCEANS >OCEAN CHEMISTRY >PIGMENTS >CHLOROPHYLL    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >BENTHIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >PELAGIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >MARINE HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >PRIMARY PRODUCTION    [Definition]


ISO Topic Category
BIOTA
GEOSCIENTIFIC INFORMATION
OCEANS


Platform
SHIPS    [Information]


Instrument
WATER BOTTLES


Project
IGBP >International Geosphere-Biosphere Programme    [Information]
JGOFS >Joint Global Ocean Flux Study, IGBP    [Information]
ESIP >Earth Science Information Partners Program    [Information]


Keywords
ALPHA-CAROTENE
BETA-CAROTENE
BOTTLES ROSETTE
CAROTENE
CHLOROPHYLLIDE
EQPAC
FLUORESCENCE
FLUOROMETER
FUCOXANTHIN
IDN_NODE GSFC/WHOI
JGOFS
PERIDININ
PHAEOPIGMENT
PHOTOSYNTHESIS
PHYCOERYTHRIN


Originating Center
WHOI


Data Center
United States Joint Global Ocean Flux Study    [Information]
Data Center URL: http://usjgofs.whoi.edu/
Dataset ID: eqpac/tt007/chl
Dataset ID: eqpac/tt007/chltm
Dataset ID: eqpac/tt007/phyc
Dataset ID: eqpac/tt007/pig
Dataset ID: eqpac/tt007/size
Dataset ID: eqpac/tt008/phyc
Dataset ID: eqpac/tt008/pig
Dataset ID: eqpac/tt008/size
Dataset ID: eqpac/tt011/chl
Dataset ID: eqpac/tt011/chltm
Dataset ID: eqpac/tt011/phyc
Dataset ID: eqpac/tt011/pig
Dataset ID: eqpac/tt011/size
Dataset ID: eqpac/tt012/phyc
Dataset ID: eqpac/tt012/pig
Dataset ID: eqpac/tt012/size

Data Center Personnel
Name: CINDY CHANDLER
Contact Address:
WHOI
City: Woods Hole
Country: USA


Biological and Chemical Oceanography Data Management Office    [Information]
Data Center URL: http://www.bco-dmo.org

Data Center Personnel
Name: ROBERT C. GROMAN
Phone: 508-289-2409
Fax: 508-457-2169
Email: rgroman at whoi.edu
Contact Address:
Woods Hole Oceanographic Institution
Swift House MS#38
City: Woods Hole
Province or State: MA
Postal Code: 02543-1127
Country: USA



Distribution
Distribution_Media: On-line (World Wide Web)


Personnel
ROBERT BIDIGARE
Role: INVESTIGATOR
Phone: (808) 956-6567
Phone: (808) 956-9516
Email: bidigare at iniki.soest.hawaii.edu
Contact Address:
Dept. of Oceanography
University of Hawaii
1000 Pope St.
City: Honolulu
Province or State: HI
Postal Code: 96822


JAMES W. MURRAY
Role: INVESTIGATOR
Phone: (206) 543-4730
Fax: (206) 685-3351
Email: jmurray at ocean.washington.edu
Contact Address:
Univ. of Washington
School of Oceanography, WB-10
City: Seattle
Province or State: WA
Postal Code: 98195
Country: USA


JAN NEWTON
Role: INVESTIGATOR
Phone: 360 407-6675
Email: jnew461 at ECY.WA.GOV
Contact Address:
Washington State Department of Ecology
City: Olympia
Province or State: Washington
Country: USA


Publications/References
Bidigare, R.R., O. Schofield, B.B. Prezelin. 1989. Influence of
zeaxanthin on quantum yield of photosynthesis of Synechococcus clone
WH7803 (DC2). Marine Ecology Progress Series, vol. 55, pp. 177-188.

Creation and Review Dates
Last DIF Revision Date: 2009-05-13


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