http://lod.bco-dmo.org/id/dataset/516670
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2014-06-11
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Mesozooplankton community grazing for 5 size classes and total for samples collected by ring net tows on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project)
2014-06-11
publication
2014-06-11
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-12-30
publication
https://doi.org/10.1575/1912/bco-dmo.516670.1
Michael R. Landry
University of California-San Diego Scripps
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Landry, M. (2014) Mesozooplankton community grazing for 5 size classes and total for samples collected by ring net tows on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2014-06-11 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.516670.1 [access date]
Mesozooplankton community grazing, expressed as micrograms pigment m-2 h-1, for 5 size classes and total. Dataset Description: <p>Mesozooplankton community grazing, expressed as ug pigment m<sup>-2</sup> h<sup>-1</sup>, for 5 size classes (2-0.5, 0.5-1, 1-2, 2-5, and &gt;5 mm) and total. Samples were collected during ring net tows on the MV1008 cruise in the Costa Rica Dome (CRD) region of the Eastern Tropical Pacific Ocean.</p> Methods and Sampling: <p><strong>Mesozooplankton net collections</strong><br />
Mesozooplankton sampling was conducted using a standard 1-m<sup>2</sup> ring net with 202-um Nitex mesh, towed obliquely for 20 min at a ship speed of 1-2 kts. A General Oceanics flowmeter was attached across the net mouth to record volume filtered, and a Vemco depth meter was fastened to the net frame to record tow depth and duration. The target depth of tows was 150m. Once on deck, the net was washed down with seawater and the contents of the cod end placed in a bucket with carbonated water to prevent gut evacuation. Separate splits (each of typically 1/8<sup>th</sup> of the sample) were used for biomass and gut-fluorescence determinations, with the latter done first to minimize pigment degradation. Each of these subsample splits was wet sieved into five size classes of 0.2-0.5, 0.5-1, 1-2, 2-5, and &gt;5 mm.</p>
<p><strong>Gut pigment and grazing estimates</strong><br />
Each size-fractioned sample for gut pigment analysis was concentrated onto a 47-mm 202-um Nitex filter and immediately frozen in liquid nitrogen for processing on shipboard or in the lab. The filters were subsampled for the three smallest size classes, by placing the frozen filters centered under a plastic template and sectioning into 8 pie-shaped fractions with a thin knife blade. Analyses were carried out in duplicate. The replicate 1/8<sup>th</sup> samples were ground in 90% acetone using a sonicator to extract pigments, and the homogenate was centrifuged to remove particulates. For the 2-5 mm size class, typically the whole sample was processed, although if very dense a smaller subsample was taken. The &gt;5 mm size class was always processed in its entirety. Concentrations of chlorophyll <em>a</em> (Chl <em>a</em>) and phaeopigments (Phaeo) were then measured using a Turner 10AU fluorometer.</p>
<p>For each size-fraction analyzed, the investigators computed the depth-integrated grazing rate (GR) using phaeopigments only to obtain conservative rates. The GR was calculated in the euphotic zone as:</p>
<p>GR = [ (pig * D) / (vol * f) ] * K</p>
<p>where <em>GR </em>is the grazing rate (ug m<sup>-2</sup> h<sup>-1</sup>), <em>pig</em> is the measured pigment value (ug, based on phaeopigments), <em>f </em>is fraction of sample analyzed, <em>D</em> is depth of tow (m), <em>vol</em> is the volume of water filtered (m<sup>3</sup>), and K is the gut evacuation rate constant. For <em>K</em>, the investigators used the rate constant of 2.1 h<sup>-1</sup> derived from shipboard gut evacuation experiments at 140°W during the JGOFS EqPac program, which had similar temperatures as those encountered in the CRD.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0826626 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0826626
completed
Michael R. Landry
University of California-San Diego Scripps
858-534-4702
9500 Gilman Drive Mail Code: 0227
La Jolla
CA
92093-0227
USA
mlandry@ucsd.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
event
tow
cycle
time_of_day
date_local
time_local
lat
lon
depth_tow
size_class
grazing_rate
General Oceanics flowmeter
Ring Net
Turner Fluorometer -10AU
theme
None, User defined
event
tow
No BCO-DMO term
time_of_day
date_local
time_local
latitude
longitude
depth
featureType
BCO-DMO Standard Parameters
Flow Meter
Ring Net
Turner Designs Fluorometer 10-AU
instrument
BCO-DMO Standard Instruments
MV1008
service
Deployment Activity
Costa Rica Dome
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Integrated Marine Biogeochemistry and Ecosystem Research -US
http://www.imber.info/
Integrated Marine Biogeochemistry and Ecosystem Research -US
The BCO-DMO database includes data from IMBER endorsed projects lead by US funded investigators. There is no dedicated US IMBER project or data management office. Those functions are provided by US-OCB and BCO-DMO respectively.
The information in this program description pertains to the Internationally coordinated IMBER research program. The projects contributing data to the BCO-DMO database are those funded by US NSF only. The full IMBER data catalog is hosted at the Global Change Master Directory (GCMD).
IMBER Data Portal: The IMBER project has chosen to create a metadata portal hosted by the NASA's Global Change Master Directory (GCMD). The GCMD IMBER data catalog provides an overview of all IMBER endorsed and related projects and links to datasets, and can be found at URL http://gcmd.nasa.gov/portals/imber/.
IMBER research will seek to identify the mechanisms by which marine life influences marine biogeochemical cycles, and how these, in turn, influence marine ecosystems. Central to the IMBER goal is the development of a predictive understanding of how marine biogeochemical cycles and ecosystems respond to complex forcings, such as large-scale climatic variations, changing physical dynamics, carbon cycle chemistry and nutrient fluxes, and the impacts of marine harvesting. Changes in marine biogeochemical cycles and ecosystems due to global change will also have consequences for the broader Earth System. An even greater challenge will be drawing together the natural and social science communities to study some of the key impacts and feedbacks between the marine and human systems.
To address the IMBER goal, four scientific themes, each including several issues, have been identified for the IMBER project: Theme 1 - Interactions between Biogeochemical Cycles and Marine Food Webs; Theme 2 - Sensitivity to Global Change: How will key marine biogeochemical cycles, ecosystems and their interactions, respond to global change?; Theme 3 - Feedback to the Earth System: What are the roles of the ocean biogeochemistry and ecosystems in regulating climate?; and Theme 4 - Responses of Society: What are the relationships between marine biogeochemical cycles, ecosystems, and the human system?
IMBER-US
largerWorkCitation
program
Ocean Carbon and Biogeochemistry
http://us-ocb.org/
Ocean Carbon and Biogeochemistry
The Ocean Carbon and Biogeochemistry (OCB) program focuses on the ocean's role as a component of the global Earth system, bringing together research in geochemistry, ocean physics, and ecology that inform on and advance our understanding of ocean biogeochemistry. The overall program goals are to promote, plan, and coordinate collaborative, multidisciplinary research opportunities within the U.S. research community and with international partners. Important OCB-related activities currently include: the Ocean Carbon and Climate Change (OCCC) and the North American Carbon Program (NACP); U.S. contributions to IMBER, SOLAS, CARBOOCEAN; and numerous U.S. single-investigator and medium-size research projects funded by U.S. federal agencies including NASA, NOAA, and NSF.
The scientific mission of OCB is to study the evolving role of the ocean in the global carbon cycle, in the face of environmental variability and change through studies of marine biogeochemical cycles and associated ecosystems.
The overarching OCB science themes include improved understanding and prediction of: 1) oceanic uptake and release of atmospheric CO2 and other greenhouse gases and 2) environmental sensitivities of biogeochemical cycles, marine ecosystems, and interactions between the two.
The OCB Research Priorities (updated January 2012) include: ocean acidification; terrestrial/coastal carbon fluxes and exchanges; climate sensitivities of and change in ecosystem structure and associated impacts on biogeochemical cycles; mesopelagic ecological and biogeochemical interactions; benthic-pelagic feedbacks on biogeochemical cycles; ocean carbon uptake and storage; and expanding low-oxygen conditions in the coastal and open oceans.
OCB
largerWorkCitation
program
Costa Rica Dome FLUx and Zinc Experiments
https://osprey.bco-dmo.org/project/515387
Costa Rica Dome FLUx and Zinc Experiments
<p>Research was aimed at improved understanding of plankton dynamics, carbon and nutrient fluxes, and potential trace element limitation in the Costa Rica Dome region of the eastern tropical Pacific. The specific science objectives of the 2010 R/V Melville cruise (MV1008) were:<br />
1) to assess grazing and trace metal/nutrient controls on primary production and phytoplankton standing stocks;<br />
2) to quantify carbon and elemental fluxes and export rates from the euphotic zone; and<br />
3) to measure microbial population, processes, stable isotope abundances associated with the OMZ and nitrite maxima.</p>
<p>Additional information about MV1008 can be found in the <a href="http://dmoserv3.whoi.edu/data_docs/CRD_FLUZiE/CRUISE_REPORT_Melville1008.pdf" target="_blank">cruise report</a> (PDF).</p>
<p><strong>NOTE: </strong>The original proposal and award abstract are not relevant. The project was originally funded by NSF as experimental tests of phytoplankton controls in the Arabian Sea. Piracy concerns in the region led to the cancellation of the research cruise in 2009, and a Change of Scope request was approved to focus the project on related issues in the Costa Rica Dome (CRD).</p>
<p>Though this project is not formally affiliated with any large program, it aligns with IMBER's emphasis on community ecology and biogeochemistry, and the OCB focus on carbon-based measurements of production, grazing and export processes.</p>
CRD FLUZiE
largerWorkCitation
project
eng; USA
oceans
Costa Rica Dome
-92.987
-86.735
6.628
10.3
2010-06-23
2010-07-23
Costa Rica Dome, Eastern Tropical Pacific Ocean
0
BCO-DMO catalogue of parameters from Mesozooplankton community grazing for 5 size classes and total for samples collected by ring net tows on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/516674.rdf
Name: event
Units: integer
Description: <p>Number referring to the particular activity (event) on the FluZiE cruise.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516675.rdf
Name: tow
Units: integer
Description: <p>Tow number.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516676.rdf
Name: cycle
Units: text
Description: <p>Type and number of cruise sampling event. Either "Stn_n" or "Cycle_n". A transect of stations was sampled from 29 June to 03 July. Five quasi-Lagrangian experiments called "cycles" were conducted during the remainder of the cruise.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516677.rdf
Name: time_of_day
Units: code
Description: <p>Time of day. 1 = day; 2= night.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516678.rdf
Name: date_local
Units: unitless
Description: <p>Date of tow (local time zone of UTC -6). in the format mmddyyyy</p>
http://lod.bco-dmo.org/id/dataset-parameter/516679.rdf
Name: time_local
Units: HHMM
Description: <p>Time at start of tow (local time zone of UTC -6).</p>
http://lod.bco-dmo.org/id/dataset-parameter/516680.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude in degrees North.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516681.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude in degrees East.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516682.rdf
Name: depth_tow
Units: meters
Description: <p>Depth of the tow.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516683.rdf
Name: size_class
Units: millimeters (mm)
Description: <p>Mesozooplankton size class.<br />
0.2_to_0.5 = 02.-0.5 mm;<br />
0.5_to_1 = 0.5-1 mm;<br />
1_to_2 = 1-2 mm;<br />
2_to_5 = 2-5 mm;<br />
gt5 = greater than 5 mm;<br />
total = total for all size classes.</p>
http://lod.bco-dmo.org/id/dataset-parameter/516684.rdf
Name: grazing_rate
Units: micrograms chlorophyll-a equivalents per square meter per hour (ug Chl a equiv m-2 h -1)
Description: <p>Clearance rate of water column Chl a for mesozooplankton size classes based on the gut fluorescence method.</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
21176
https://darchive.mblwhoilibrary.org/bitstream/1912/25078/1/dataset-516670_mesozoo-grazing-size-class__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.516670.1
download
onLine
dataset
<p><strong>Mesozooplankton net collections</strong><br />
Mesozooplankton sampling was conducted using a standard 1-m<sup>2</sup> ring net with 202-um Nitex mesh, towed obliquely for 20 min at a ship speed of 1-2 kts. A General Oceanics flowmeter was attached across the net mouth to record volume filtered, and a Vemco depth meter was fastened to the net frame to record tow depth and duration. The target depth of tows was 150m. Once on deck, the net was washed down with seawater and the contents of the cod end placed in a bucket with carbonated water to prevent gut evacuation. Separate splits (each of typically 1/8<sup>th</sup> of the sample) were used for biomass and gut-fluorescence determinations, with the latter done first to minimize pigment degradation. Each of these subsample splits was wet sieved into five size classes of 0.2-0.5, 0.5-1, 1-2, 2-5, and &gt;5 mm.</p>
<p><strong>Gut pigment and grazing estimates</strong><br />
Each size-fractioned sample for gut pigment analysis was concentrated onto a 47-mm 202-um Nitex filter and immediately frozen in liquid nitrogen for processing on shipboard or in the lab. The filters were subsampled for the three smallest size classes, by placing the frozen filters centered under a plastic template and sectioning into 8 pie-shaped fractions with a thin knife blade. Analyses were carried out in duplicate. The replicate 1/8<sup>th</sup> samples were ground in 90% acetone using a sonicator to extract pigments, and the homogenate was centrifuged to remove particulates. For the 2-5 mm size class, typically the whole sample was processed, although if very dense a smaller subsample was taken. The &gt;5 mm size class was always processed in its entirety. Concentrations of chlorophyll <em>a</em> (Chl <em>a</em>) and phaeopigments (Phaeo) were then measured using a Turner 10AU fluorometer.</p>
<p>For each size-fraction analyzed, the investigators computed the depth-integrated grazing rate (GR) using phaeopigments only to obtain conservative rates. The GR was calculated in the euphotic zone as:</p>
<p>GR = [ (pig * D) / (vol * f) ] * K</p>
<p>where <em>GR </em>is the grazing rate (ug m<sup>-2</sup> h<sup>-1</sup>), <em>pig</em> is the measured pigment value (ug, based on phaeopigments), <em>f </em>is fraction of sample analyzed, <em>D</em> is depth of tow (m), <em>vol</em> is the volume of water filtered (m<sup>3</sup>), and K is the gut evacuation rate constant. For <em>K</em>, the investigators used the rate constant of 2.1 h<sup>-1</sup> derived from shipboard gut evacuation experiments at 140°W during the JGOFS EqPac program, which had similar temperatures as those encountered in the CRD.</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO transposed size_class columns into rows.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
General Oceanics flowmeter
General Oceanics flowmeter
PI Supplied Instrument Name: General Oceanics flowmeter PI Supplied Instrument Description:A General Oceanics flowmeter was attached across the ring net mouth to record volume filtered. Instrument Name: Flow Meter Instrument Short Name:Flow Meter Instrument Description: General term for a sensor that quantifies the rate at which fluids (e.g. water or air) pass through sensor packages, instruments, or sampling devices. A flow meter may be mechanical, optical, electromagnetic, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/388/
Ring Net
Ring Net
PI Supplied Instrument Name: Ring Net PI Supplied Instrument Description:Mesozooplankton sampling was conducted using a standard 1-m2 ring net with 202-um Nitex mesh, towed obliquely for 20 min at a ship speed of 1-2 kts. Instrument Name: Ring Net Instrument Short Name:Ring Net Instrument Description: A Ring Net is a generic plankton net, made by attaching a net of any mesh size to a metal ring of any diameter. There are 1 meter, .75 meter, .25 meter and .5 meter nets that are used regularly. The most common zooplankton ring net is 1 meter in diameter and of mesh size .333mm, also known as a 'meter net' (see Meter Net). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/22/
Turner Fluorometer -10AU
Turner Fluorometer -10AU
PI Supplied Instrument Name: Turner Fluorometer -10AU PI Supplied Instrument Description:Concentrations of chlorophyll a and phaeopigments were measured using a Turner 10AU fluorometer. Instrument Name: Turner Designs Fluorometer 10-AU Instrument Short Name:Turner Fluorometer 10-AU Instrument Description: The Turner Designs 10-AU Field Fluorometer is used to measure Chlorophyll fluorescence. The 10AU Fluorometer can be set up for continuous-flow monitoring or discrete sample analyses. A variety of compounds can be measured using application-specific optical filters available from the manufacturer (read more from Turner Designs, turnerdesigns.com, Sunnyvale, CA, USA). Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/
Cruise: MV1008
MV1008
R/V Melville
Community Standard Description
International Council for the Exploration of the Sea
R/V Melville
vessel
MV1008
Michael R. Landry
University of California-San Diego Scripps
http://dmoserv3.whoi.edu/data_docs/CRD_FLUZiE/CRUISE_REPORT_Melville1008.pdf
Report describing MV1008
R/V Melville
Community Standard Description
International Council for the Exploration of the Sea
R/V Melville
vessel