http://lod.bco-dmo.org/id/dataset/774841
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
2019-08-07
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Size of sinking aggregates of a Sargasso Sea Plankton community from roller tank experiments with seawater collected during R/V Atlantic Explorer cruises AE1718 and AE1808 in 2017 and 2018
2019-08-14
publication
2019-08-14
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-12-26
publication
https://doi.org/10.1575/1912/bco-dmo.774841.1
Susanne Neuer
Arizona State University
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: Neuer, S. (2019) Size of sinking aggregates of a Sargasso Sea Plankton community from roller tank experiments with seawater collected during R/V Atlantic Explorer cruises AE1718 and AE1808 in 2017 and 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-08-14 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.774841.1 [access date]
Dataset Description: <p><span style="font-size:13px">Size of sinking aggregates of a Sargasso Sea Plankton community from roller tank experiments with seawater collected during R/V Atlantic Explorer cruises AE1718 and AE1808 in 2017 and 2018.</span><br />
<br />
These data were published in&nbsp;Cruz and Neuer, 2019.<br />
<br />
Related Datasets:<br />
*&nbsp;Sargasso Sea Plankton Aggregation: Aggregate Abundances https://www.bco-dmo.org/dataset/774813<br />
* Sargasso Sea Plankton Aggregation: Sinking Velocities https://www.bco-dmo.org/dataset/774820<br />
* Sargasso Sea Plankton Aggregation: Excess Densities https://www.bco-dmo.org/dataset/774827<br />
* Sargasso Sea Plankton Aggregation: TEP https://www.bco-dmo.org/dataset/774834</p> Methods and Sampling: <p>Sargasso Seawater was incubated in 1.25 L roller tanks for 5 days in the dark at 3.5 RPM (for further details on roller tanks, see Shanks and Edmondson, 1989). Aggregation was tested with and without the addition of kaolinite clay. All treatments had <em>n</em>&nbsp;= 2 tanks. Aggregates formed were quantified, sized, and their sinking velocities and excess densities determined. TEP concentrations were determined as in Passow and Alldredge (1995). The stock of Alcian-Blue dye used for TEP quantification had a calibration factor (f-factor) of 84.15.<br />
<br />
Aggregation was tested with and without the addition of kaolinite clay (control, 0.5 mg per L of kaolinite clay, 5.0 mg per L of kaolinite clay)</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1658527 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1658527
completed
Susanne Neuer
Arizona State University
480-727-7254
College of Liberal Arts and Sciences School of Life Sciences 427 East Tyler Mall
Tempe
AZ
85287-4501
USA
susanne.neuer@asu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Cruise
Depth_m
Lat
Lon
Aggregate_ESD_Control1
Aggregate_ESD_Control2
Aggregate_ESD_0_5mg_Lkaolinite1
Aggregate_ESD_0_5mg_Lkaolinite2
Aggregate_ESD_5_0mg_Lkaolinite1
Aggregate_ESD_5_0mg_Lkaolinite2
Stemi 2000-C, Axiocam 105 Color, Carl Zeiss, Germany
theme
None, User defined
Cruise identfier
depth
latitude
longitude
cell_size
featureType
BCO-DMO Standard Parameters
Microscope - Optical
instrument
BCO-DMO Standard Instruments
AE1808
AE1718
service
Deployment Activity
Bermuda
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.
Aggregation of Marine Picoplankton
https://osprey.bco-dmo.org/project/710239
Aggregation of Marine Picoplankton
<p>NSF abstract:</p>
<p>Marine phytoplankton are microscopic algae that live in the sunlit zone of the ocean. They play an important role in the uptake of carbon dioxide from the atmosphere through photosynthesis, similar to what plants do on land, and are the basis of the marine food web. However, instead of storing this organic carbon in leaf tissue and roots, marine phytoplankton are grazed by planktonic animals, or die and subsequently sink out of the sunlit zone in the form of aggregates, also called "Marine Snow". These particles not only export the organic carbon contained in their cells to the deep ocean, but also serve as food for animals and bacteria that live in the deep. A considerable portion of these phytoplankton are extremely small, among the tiniest of all organisms known. These extremely small cells have not been thought to play an important role in the formation and sinking of marine snow; however, recent findings challenge this view. This project will investigate how the smallest of these phytoplankton contribute to the rain of sinking particles from the sunlit surface to the deep ocean. This research is important because, in some of the largest expanses of the open oceans, these minute cells dominate the phytoplankton community, and larger plankton organisms are very sparse. The project, through a combination of work in the laboratory and at a field station, will shed light on how these tiny phytoplankton cells make aggregates, which ultimately enable them to sink as "Marine Snow". The project also provides unique opportunities for undergraduate students at Arizona State University, a land-locked public university, to gain experience in working with marine research. The project will serve to educate one PhD student, one MS student in an accelerated BS-MS program, and 8-10 undergraduate students/semester in a unique, inquiry based learning effort termed Microbial EducatioN Training and OutReach (MENTOR). The undergraduate students will also participate in Arizona State University (ASU)'s School of Life Sciences, Undergraduate Research Program (SOLUR), which seeks to increase the participation of minorities in science. They will also contribute towards developing web and classroom materials, based on this project, which will then be distributed through a partnership with the award-winning ASU-sponsored Ask A Biologist K-12 web site.</p>
<p>The oceanic "biological carbon pump", the photosynthetically mediated transformation of dissolved inorganic carbon into particulate and dissolved organic carbon and its subsequent export to deep water, functions as a significant driver of atmospheric carbon uptake by the oceans. The traditional view of the biological carbon pump in the ocean is that of sinking of large aggregates (marine snow) or fecal pellets, which are made up of large, mineral ballasted cells of phytoplankton. However, recent evidence, stemming from in situ investigations of particulate matter, trap studies and modelling studies, have shown that micron-sized phytoplankton such as picocyanobacteria as well as picoeukaryotes can contribute significantly to the sinking of particulate matter. The specific mechanisms behind the sinking of these micrometer sized cells remain elusive as the cells are too small to sink on their own, and mesozooplankton is likely unable to ingest single cells. Intriguingly, recent research by the investigators has shown that the ubiquitous picocyanobacteria Synechococcus are able to form aggregates and sink at velocities comparable to those of marine snow. They found that the matrix of the Synechococcus aggregates was made of Transparent Exopolymeric Particles (TEP), and that TEP production was enhanced under nutrient limited culture conditions. Interaction with clays and presence of heterotrophic bacteria also enhanced aggregation and sinking velocity. This study aims to further investigate aggregation of other common picoplankton in the laboratory and aggregation occurring in natural settings at an oligotrophic open ocean site, the Bermuda Atlantic Time-series Site (BATS). Ultimately, this project will increase and refine our understanding of the role of the smallest phytoplankton in aggregation and sinking - information vital to understanding carbon cycling processes in the oceans.</p>
Marine Plankton Aggregation
largerWorkCitation
project
eng; USA
oceans
Bermuda
-64.5752
-64.38
31.9795
32.3027
2017-09-17
2018-03-21
Bermuda Atlantic Time-Series station
0
BCO-DMO catalogue of parameters from Size of sinking aggregates of a Sargasso Sea Plankton community from roller tank experiments with seawater collected during R/V Atlantic Explorer cruises AE1718 and AE1808 in 2017 and 2018
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/784865.rdf
Name: Cruise
Units: unitless
Description: <p>Cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/784866.rdf
Name: Depth_m
Units: meters (m)
Description: <p>Depth from which seawater was collected for roller tank incubations</p>
http://lod.bco-dmo.org/id/dataset-parameter/784867.rdf
Name: Lat
Units: decimal degrees
Description: <p>Latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/784868.rdf
Name: Lon
Units: decimal degrees
Description: <p>Longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/784869.rdf
Name: Aggregate_ESD_Control1
Units: millimeters (mm)
Description: <p>Aggregate equivalent spherical diameter (ESD). Treatment = Control, replicate 1, no kaolinite clay.</p>
http://lod.bco-dmo.org/id/dataset-parameter/784870.rdf
Name: Aggregate_ESD_Control2
Units: millimeters (mm)
Description: <p>Aggregate equivalent spherical diameter (ESD). Treatment = Control, replicate 2, no kaolinite clay.</p>
http://lod.bco-dmo.org/id/dataset-parameter/784871.rdf
Name: Aggregate_ESD_0_5mg_Lkaolinite1
Units: millimeters (mm)
Description: <p>Aggregate equivalent spherical diameter (ESD). Treatment = concentration of 0.5 mg per L of kaolinite clay, replicate 1.</p>
http://lod.bco-dmo.org/id/dataset-parameter/784872.rdf
Name: Aggregate_ESD_0_5mg_Lkaolinite2
Units: millimeters (mm)
Description: <p>Aggregate equivalent spherical diameter (ESD). Treatment = concentration of 0.5 mg per L of kaolinite clay, replicate 2.</p>
http://lod.bco-dmo.org/id/dataset-parameter/784873.rdf
Name: Aggregate_ESD_5_0mg_Lkaolinite1
Units: millimeters (mm)
Description: <p>Aggregate equivalent spherical diameter (ESD). Treatment = concentration of 5.0 mg per L of kaolinite clay, replicate 1.</p>
http://lod.bco-dmo.org/id/dataset-parameter/784874.rdf
Name: Aggregate_ESD_5_0mg_Lkaolinite2
Units: millimeters (mm)
Description: <p>Aggregate equivalent spherical diameter (ESD). Treatment = concentration of 5.0 mg per L of kaolinite clay, replicate 2.</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
456
https://darchive.mblwhoilibrary.org/bitstream/1912/25062/1/dataset-774841_sargasso-sea-plankton-aggregation-sizes__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.774841.1
download
onLine
dataset
<p>Sargasso Seawater was incubated in 1.25 L roller tanks for 5 days in the dark at 3.5 RPM (for further details on roller tanks, see Shanks and Edmondson, 1989). Aggregation was tested with and without the addition of kaolinite clay. All treatments had <em>n</em>&nbsp;= 2 tanks. Aggregates formed were quantified, sized, and their sinking velocities and excess densities determined. TEP concentrations were determined as in Passow and Alldredge (1995). The stock of Alcian-Blue dye used for TEP quantification had a calibration factor (f-factor) of 84.15.<br />
<br />
Aggregation was tested with and without the addition of kaolinite clay (control, 0.5 mg per L of kaolinite clay, 5.0 mg per L of kaolinite clay)</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Data Manager Processing Notes: Growth Rates<br />
* Excel sheet extracted to a csv file<br />
* added a conventional header with dataset name, PI name, version date<br />
* modified parameter names to conform with BCO-DMO naming conventions<br />
* blank values in this dataset are displayed as "nd" for "no data."&nbsp; nd is the default missing data identifier in the BCO-DMO system.</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
Stemi 2000-C, Axiocam 105 Color, Carl Zeiss, Germany
Stemi 2000-C, Axiocam 105 Color, Carl Zeiss, Germany
PI Supplied Instrument Name: Stemi 2000-C, Axiocam 105 Color, Carl Zeiss, Germany Instrument Name: Microscope - Optical Instrument Short Name: Instrument Description: Instruments that generate enlarged images of samples using the phenomena of reflection and absorption of visible light. Includes conventional and inverted instruments. Also called a "light microscope". Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB05/
Cruise: AE1808
AE1808
R/V Atlantic Explorer
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantic Explorer
vessel
AE1808
Rodney J. Johnson
Cruise: AE1718
AE1718
R/V Atlantic Explorer
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantic Explorer
vessel
AE1718
Rodney J. Johnson
R/V Atlantic Explorer
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantic Explorer
vessel