http://lod.bco-dmo.org/id/dataset/739750
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
2018-07-11
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Biomass contribution of dominant phytoplankton and herbivorous protists taxa from R/V Porsild in Disko Bay, West Greenland from 2011-04-23 to 2011-05-07
2018-07-10
publication
2018-07-10
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-05-20
publication
https://doi.org/10.26008/1912/bco-dmo.739750.1
Susanne Menden-Deuer
University of Rhode Island
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: Menden-Deuer, S. (2021) Biomass contribution of dominant phytoplankton and herbivorous protists taxa from R/V Porsild in Disko Bay, West Greenland from 2011-04-23 to 2011-05-07. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2018-07-10 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.739750.1 [access date]
Environmental and biological conditions characterizing Disko Bay, Greenland in April-May 2011 Dataset Description: <p>Biomass contribution of dominant phytoplankton and herbivorous protists taxa.</p> Methods and Sampling: <p>Sampling and analytical procedures:&nbsp;<br />
For microscopy analysis of species composition and biomass via size, 100 mL of WSW from both initial and final samples were preserved with 2% acid Lugol’s iodine (final concentration; Menden-Deuer, Lessard &amp; Satterberg, 2001). Counts of dominant phytoplankton &gt;5 μm in diameter were made with a 1 mL Sedgwick-Rafter slide, a minimum of 300 cells per sample were counted. Less abundant species, and herbivorous protists were counted in 50 mL Lugol’s fixed samples settled following the Utermöhl method. The entire surface of the chamber was scanned under an inverted microscope at 100–200x to ensure adequate sample size. However when low cell numbers were encountered, multiple species were binned to increase the confidence of the rate estimate. Taxonomic identification was based on morphological characteristics (Dodge, 1985; Tomas, 1997; Lee, Leedale &amp; Bradbury, 2000; Horner, 2002). Protist biovolume was calculated from linear dimensions by approximating geometric shapes and converted to carbon using the conversion equations in Menden-Deuer &amp; Lessard (2000). Microscope counts were made for samples from experiments conducted between April 23rd and May 7th. No counts were made for experiments on April 20th, or May 7th and 11th.&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1736635 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1736635
completed
Susanne Menden-Deuer
University of Rhode Island
215 South Ferry Rd.
Narragansett
RI
02882
USA
smenden@uri.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Date
Chaetoceros_spp
Thalassiosira_spp
Skeletonema
Other_Diatoms
Ciliates_gt20um
Ciliates_lt20um
Gyrodinium_spp
Gymnodinium_cf_undulans
Protoperidinium_spp
lat
lon
theme
None, User defined
date
wet_weight_biomass
latitude
longitude
featureType
BCO-DMO Standard Parameters
Disko_Bay
service
Deployment Activity
Disko Bay, West Greenland, coastal region around Qeqertarsuaq, Greenland
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.
Quantifying Temperature Dependence In Growth & Grazing Rates of Planktonic Herbivores
https://osprey.bco-dmo.org/project/739232
Quantifying Temperature Dependence In Growth & Grazing Rates of Planktonic Herbivores
<p><em>NSF Award Abstract:</em><br />
Plankton, single-celled organisms that inhabit the world's oceans are responsible for the generation of oxygen, cycling energy and matter between the atmosphere and the deep ocean and are the basis for virtually all seafood harvested. These life-giving functions critically depend on the relative rates at which plankton grow and get eaten. How temperature influences those rates is essential to understand plankton responses to environmental changes and ocean dynamics. It is well established that plankton grow faster when temperatures are higher however, whether feeding has a similar temperature dependence is unknown. That means oceanographers are missing key data required to build global predictive models. This project will fill essential knowledge gaps and measure physiological rates of singled celled zooplankton across temperature gradients representing the global ocean, from polar to tropical regions and throughout the seasonal cycle. Researchers will combine laboratory experiments with specimens taken from the coastal ocean (Narragansett Bay), which is exemplary in its strong seasonal temperature variations. These data will provide a clear picture of the production capacity and activity of plankton in a global and dynamic ocean. The project supports an early career scientist, as well as graduate and undergraduate students. Scientists will continue communicating their research to the public through large-scale outreach events, education at the high-school level, and engagement through online and other media. Moreover, researchers will continue collaborating with the Metcalf Institute for Marine & Environmental Reporting to support their Annual Science Immersion Workshop for Journalists and their ongoing work to disseminate research findings through web-based seminars.</p>
<p>Grazing is the single largest loss factor of marine primary production and thus affects a key transfer rate between global organic and inorganic matter pools. Remarkably, data for herbivorous protist growth and grazing rates at temperatures representative of the vast polar regions and during winter and spring periods are extremely sparse. By combining laboratory experiments with ground truthing fieldwork, this project alleviates a central knowledge gap in oceanography and delivers the empirical measurements necessary to derive algorithms to incorporate temperature dependence of heterotrophic protist growth and grazing rates into biogeochemical models. The extraordinary seasonal temperature fluctuations in a temperate coastal estuary (Narragansett Bay) are exploited to measure rates of heterotrophic protists isolated from different temperatures and seasons and to quantify the temperature and acclimation responses of these ecotypes. This project delivers data urgently needed to solve the conundrum of whether herbivorous growth and predation is depressed at low temperatures, implying low trophic transfer rates and high carbon export, or if predation proceeds at rates comparable to temperate systems with primary production largely lost to predation. Large temperature gradients in the global ocean mean that cross-biome and biogeochemical models are particularly sensitive to assumptions about the temperature dependence in modeled rate processes. Establishment of the dependence of heterotrophic plankton physiological rates (growth and grazing) to gradients of temperature, mimicking realistic conditions experienced by plankton in a changing ocean, is a key step towards integrating much needed biological information in biogeochemical modeling efforts. This project makes a significant contribution to linking ecological research with ecosystem models by providing empirically rooted algorithms of the temperature dependence of protistan herbivory and growth rates, key processes in the transformation of organic matter in global biogeochemical cycles and tools critically missing in ecosystem models.</p>
Planktonic Herbivore Temp Dependence
largerWorkCitation
project
eng; USA
oceans
Disko Bay, West Greenland, coastal region around Qeqertarsuaq, Greenland
-53.2333
-53.2333
69.183333
69.183333
2011-04-23
2011-05-07
Narragansett Bay
0
BCO-DMO catalogue of parameters from Biomass contribution of dominant phytoplankton and herbivorous protists taxa from R/V Porsild in Disko Bay, West Greenland from 2011-04-23 to 2011-05-07
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/739759.rdf
Name: Date
Units: unitless
Description: <p>Experimental date as YYYY-MM-DD</p>
http://lod.bco-dmo.org/id/dataset-parameter/739760.rdf
Name: Chaetoceros_spp
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739761.rdf
Name: Thalassiosira_spp
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739762.rdf
Name: Skeletonema
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739763.rdf
Name: Other_Diatoms
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739764.rdf
Name: Ciliates_gt20um
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739765.rdf
Name: Ciliates_lt20um
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739766.rdf
Name: Gyrodinium_spp
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739767.rdf
Name: Gymnodinium_cf_undulans
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739768.rdf
Name: Protoperidinium_spp
Units: micrograms of carbon per liter (µg C L-1)
Description: <p>Biomass contribution</p>
http://lod.bco-dmo.org/id/dataset-parameter/739769.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude of observations. South being negative.</p>
http://lod.bco-dmo.org/id/dataset-parameter/739771.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude of observations. West being negative.</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
628
https://darchive.mblwhoilibrary.org/bitstream/1912/27146/1/dataset-739750_disko-bay-carbon-biomass__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.739750.1
download
onLine
dataset
<p>Sampling and analytical procedures:&nbsp;<br />
For microscopy analysis of species composition and biomass via size, 100 mL of WSW from both initial and final samples were preserved with 2% acid Lugol’s iodine (final concentration; Menden-Deuer, Lessard &amp; Satterberg, 2001). Counts of dominant phytoplankton &gt;5 μm in diameter were made with a 1 mL Sedgwick-Rafter slide, a minimum of 300 cells per sample were counted. Less abundant species, and herbivorous protists were counted in 50 mL Lugol’s fixed samples settled following the Utermöhl method. The entire surface of the chamber was scanned under an inverted microscope at 100–200x to ensure adequate sample size. However when low cell numbers were encountered, multiple species were binned to increase the confidence of the rate estimate. Taxonomic identification was based on morphological characteristics (Dodge, 1985; Tomas, 1997; Lee, Leedale &amp; Bradbury, 2000; Horner, 2002). Protist biovolume was calculated from linear dimensions by approximating geometric shapes and converted to carbon using the conversion equations in Menden-Deuer &amp; Lessard (2000). Microscope counts were made for samples from experiments conducted between April 23rd and May 7th. No counts were made for experiments on April 20th, or May 7th and 11th.&nbsp;</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing Notes:<br />
-&nbsp;added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- appended latitude, longitude coordinates to the data.</p>
<p>&nbsp;</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
Cruise: Disko_Bay
Disko_Bay
R/V Porsild
R/V Porsild
vessel
Disko_Bay
Susanne Menden-Deuer
University of Rhode Island
R/V Porsild
R/V Porsild
vessel