http://lod.bco-dmo.org/id/dataset/755712
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
2019-02-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Laboratory study of estimates of per capita sea urchin grazing rates on Clathromorphum nereostratum, evaluated as a function of sea urchin size
2019-02-13
publication
2019-02-13
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-02-25
publication
https://doi.org/10.1575/1912/bco-dmo.755712.1
Robert S. Steneck
University of Maine
principalInvestigator
James Estes
University of California-Santa Cruz
principalInvestigator
Douglas B. Rasher
Bigelow Laboratory for Ocean Sciences
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
documentDigital
Cite this dataset as: Steneck, R., Estes, J., Rasher, D. (2019) Laboratory study of estimates of per capita sea urchin grazing rates on Clathromorphum nereostratum, evaluated as a function of sea urchin size. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Dataset version 2019-02-13 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.755712.1 [access date]
lab urchin grazing vs. size Dataset Description: <p>Estimates of <em>per capita</em> sea urchin grazing rates on <em>Clathromorphum nereostratum</em>, evaluated as a function of sea urchin size. Assays were performed under ambient conditions in a controlled mesocosm setting, using the urchin <em>Strongylocentrotus polyacanthus</em>.</p> Acquisition Description: <p>We conducted a controlled laboratory experiment to test whether the capacity of <em>S. polyacanthus</em> to consume <em>C. nereostratum</em> scales with its size. Conducted under ambient light and continuous water flow (mean water temperature ~8.5 degrees C), this feeding experiment consisted of five sea urchin size classes (15-55 mm test diameter; binned in 10 mm size classes, n = 5/size class). Size classes were evenly distributed among blocks (n = 5), with each block including a control alga (i.e., <em>C. nereostratum</em> caged alone) to account for algal growth as well as loss due to factors other than herbivory (see calculation below). Urchins were individually housed with a single <em>C. nereostratum</em> colony. We assessed the blotted wet mass of each <em>C. nereostratum</em> at the beginning of the assay, then again after 10 days. We calculated the (corrected) amount of <em>C. nereostratum</em> consumed in each assay using the equation [Ti x (Cf/Ci)] - Tf, where Ti and Tf is the initial and final mass (respectively) of an alga exposed to herbivory and Ci and Cf is the initial and final mass (respectively) of its paired control.</p>
<p>After computing <em>per capita </em>grazing rate ("amount.mg.consumed/day") for each urchin, we also standardized each <em>per capita</em> grazing rate by the estimated biomass (calculated via a known size-weight relationship) of the individual urchin ("amount.mg.consumed/d/gram.urchin").</p>
<p>Finally, we quantified the maximum depth (mm) to which each urchin grazed <em>C. nereostratum </em>by examining each sample under a microscope and measuring the depth of the most significant grazing scar using an ocular micrometer.</p>
Funding provided by NSF Arctic Sciences (NSF ARC) Award Number: PLR-1316141 Award URL: http://nsf.gov/awardsearch/showAward?AWD_ID=1316141
completed
Robert S. Steneck
University of Maine
(207) 563-8315
193 Clarks Cove Road
Walpole
ME
04573
USA
steneck@maine.edu
pointOfContact
James Estes
University of California-Santa Cruz
(831) 459-2820
Long Marine Laboratory, Center for Ocean Health & Dept. of Ecology and Evolutionary Biology University of California, Santa Cruz
Santa Cruz
CA
95060
USA
jestes@ucsc.edu
pointOfContact
Douglas B. Rasher
Bigelow Laboratory for Ocean Sciences
(207) 563-8140
School of Marine Sciences; Darling Marine Center 193 Clarks Cove Road
Walpole
ME
04573
douglas.rasher@maine.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
treatment
replicate
urchin_diameter_mm
urchin_biomass_grams
cca_mass_initial_grams
cca_mass_final_grams
correction_factor
corrected_cca_mass_initial_grams
amount_grams_consumed
amount_mg_consumed
amount_mg_consumed_day
amount_mg_consumed_d_gram_urchin
max_depth_grazed_mm
theme
None, User defined
treatment
replicate
diameter
biomass
mass
no standard parameter
depth
featureType
BCO-DMO Standard Parameters
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.
Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA)
http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=503477
Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA)
NSF Climate Research Investment (CRI) activities that were initiated in 2010 are now included under Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES). SEES is a portfolio of activities that highlights NSF's unique role in helping society address the challenge(s) of achieving sustainability. Detailed information about the SEES program is available from NSF (http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=504707).
In recognition of the need for basic research concerning the nature, extent and impact of ocean acidification on oceanic environments in the past, present and future, the goal of the SEES: OA program is to understand (a) the chemistry and physical chemistry of ocean acidification; (b) how ocean acidification interacts with processes at the organismal level; and (c) how the earth system history informs our understanding of the effects of ocean acidification on the present day and future ocean.
Solicitations issued under this program:NSF 10-530, FY 2010-FY2011NSF 12-500, FY 2012NSF 12-600, FY 2013NSF 13-586, FY 2014
NSF 13-586 was the final solicitation that will be released for this program.
PI Meetings:1st U.S. Ocean Acidification PI Meeting(March 22-24, 2011, Woods Hole, MA)2nd U.S. Ocean Acidification PI Meeting(Sept. 18-20, 2013, Washington, DC)
3rd U.S. Ocean Acidification PI Meeting (June 9-11, 2015, Woods Hole, MA – Tentative)
NSF media releases for the Ocean Acidification Program:
Press Release 10-186 NSF Awards Grants to Study Effects of Ocean Acidification
Discovery Blue Mussels "Hang On" Along Rocky Shores: For How Long?
Discovery nsf.gov - National Science Foundation (NSF) Discoveries - Trouble in Paradise: Ocean Acidification This Way Comes - US National Science Foundation (NSF)
Press Release 12-179 nsf.gov - National Science Foundation (NSF) News - Ocean Acidification: Finding New Answers Through National Science Foundation Research Grants - US National Science Foundation (NSF)
Press Release 13-102 World Oceans Month Brings Mixed News for Oysters
Press Release 13-108 nsf.gov - National Science Foundation (NSF) News - Natural Underwater Springs Show How Coral Reefs Respond to Ocean Acidification - US National Science Foundation (NSF)
Press Release 13-148 Ocean acidification: Making new discoveries through National Science Foundation research grants
Press Release 13-148 - Video nsf.gov - News - Video - NSF Ocean Sciences Division Director David Conover answers questions about ocean acidification. - US National Science Foundation (NSF)
Press Release 14-010 nsf.gov - National Science Foundation (NSF) News - Palau's coral reefs surprisingly resistant to ocean acidification - US National Science Foundation (NSF)
Press Release 14-116 nsf.gov - National Science Foundation (NSF) News - Ocean Acidification: NSF awards $11.4 million in new grants to study effects on marine ecosystems - US National Science Foundation (NSF)
SEES-OA
largerWorkCitation
program
Ocean Acidification: Century Scale Impacts to Ecosystem Structure and Function of Aleutian Kelp Forests
https://www.bco-dmo.org/project/526660
Ocean Acidification: Century Scale Impacts to Ecosystem Structure and Function of Aleutian Kelp Forests
<p><em>Extracted from the NSF award abstract:</em></p>
<p>Marine calcifying organisms are most at risk to rapid ocean acidification (OA) in cold-water ecosystems. The investigators propose to determine if a globally unique and widespread calcareous alga in Alaska's Aleutian archipelago, <em>Clathromorphum nereostratum</em>, is threatened with extinction due to the combined effects of OA and food web alterations. <em>C. nereostratum</em> is a slow growing coralline alga that can live to at least 2000 years. It accretes massive 'bioherms' that dominate the regions' rocky substrate both under kelp forests and deforested sea urchin barrens. It develops growth bands (similar to tree rings) in its calcareous skeleton, which effectively record its annual calcification rate over centuries. Pilot data suggest the skeletal density of <em>C. nereostratum</em> began to decline precipitously in the 1990's in some parts of the Aleutian archipelago. The investigators now propose to use high-resolution microscopy and microCT imaging to examine how the growth and skeletal density of <em>C. nereostratum</em> has changed in the past 300 years (i.e., since the industrial revolution) across the western Aleutians. They will compare their records of algal skeletal densities and their variation through time with reconstructions of past climate to infer causes of change. In addition, the investigators will examine whether the alga's defense against grazing by sea urchins is compromised by ongoing ocean acidification. The investigators will survey the extent of <em>C. nereostratum</em> bioerosion occurring at 10 sites spanning the western Aleutians, both inside and outside of kelp forests. At each site they will compare these patterns to observed and monitored ecosystem trophic structure and recent <em>C. nereostratum</em> calcification rates. Field observations will be combined with laboratory experiments to determine if it is a decline in the alga's skeletal density (due to recent OA and warming), an increase in grazing intensity (due to recent trophic-level dysfunction), or their interactive effects that are likely responsible for bioerosion patterns inside vs. outside of forests. By sampling <em>C. nereostratum</em> inside and outside of forests, they will determine if kelp forests locally increase pH via photosynthesis, and thus buffer the effects of OA on coralline calcification. The combination of field observations with laboratory controlled experiments, manipulating CO2 and temperature, will help elucidate drivers of calcification and project how these species interactions will likely change in the near future. The project will provide the first in situ example of how ongoing ocean acidification is affecting the physiology of long-lived, carbonate producing organisms in the subarctic North Pacific. It will also be one of the first studies to document whether OA, ocean warming, and food web changes to ecological processes are interacting in complex ways to reshape the outcome of species interactions in nature.</p>
OA Kelp Forest Function
largerWorkCitation
project
eng; USA
biota
oceans
2015-07-08
2015-07-18
0
BCO-DMO catalogue of parameters from Laboratory study of estimates of per capita sea urchin grazing rates on Clathromorphum nereostratum, evaluated as a function of sea urchin size
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/755722.rdf
Name: treatment
Units: millimeters
Description: target size class of sea urchin
http://lod.bco-dmo.org/id/dataset-parameter/755723.rdf
Name: replicate
Units: unitless
Description: replicate individual urchin or alga
http://lod.bco-dmo.org/id/dataset-parameter/755724.rdf
Name: urchin_diameter_mm
Units: millimeters
Description: actual size (test diameter) of sea urchin
http://lod.bco-dmo.org/id/dataset-parameter/755725.rdf
Name: urchin_biomass_grams
Units: grams
Description: biomass of sea urchin; estimated using known length-weight relationship
http://lod.bco-dmo.org/id/dataset-parameter/755726.rdf
Name: cca_mass_initial_grams
Units: grams
Description: initial mass of coralline alga
http://lod.bco-dmo.org/id/dataset-parameter/755727.rdf
Name: cca_mass_final_grams
Units: grams
Description: final mass of coralline alga
http://lod.bco-dmo.org/id/dataset-parameter/755728.rdf
Name: correction_factor
Units: unitless
Description: correction factor; computed by dividing the final mass of the paired control alga by its initial mass (Cf/Ci)
http://lod.bco-dmo.org/id/dataset-parameter/755729.rdf
Name: corrected_cca_mass_initial_grams
Units: grams
Description: cca_mass_initial_grams * correction_factor
http://lod.bco-dmo.org/id/dataset-parameter/755730.rdf
Name: amount_grams_consumed
Units: grams
Description: amount of coralline algae consumed: corrected_cca_mass_initial_grams minus cca_mass_final_grams
http://lod.bco-dmo.org/id/dataset-parameter/755731.rdf
Name: amount_mg_consumed
Units: millimeters
Description: amount of coralline algae consumed
http://lod.bco-dmo.org/id/dataset-parameter/755732.rdf
Name: amount_mg_consumed_day
Units: millimeters
Description: rate of algal consumption (per day)
http://lod.bco-dmo.org/id/dataset-parameter/755733.rdf
Name: amount_mg_consumed_d_gram_urchin
Units: millimeters
Description: rate of algal consumption (per day): standardized by the biomass of the individual sea urchin
http://lod.bco-dmo.org/id/dataset-parameter/755734.rdf
Name: max_depth_grazed_mm
Units: millimeters
Description: maximum depth of sea urchin grazing scar on the coralline alga
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
https://www.bco-dmo.org/dataset/755712/data/download
download
onLine
dataset
<p>We conducted a controlled laboratory experiment to test whether the capacity of <em>S. polyacanthus</em> to consume <em>C. nereostratum</em> scales with its size. Conducted under ambient light and continuous water flow (mean water temperature ~8.5 degrees C), this feeding experiment consisted of five sea urchin size classes (15-55 mm test diameter; binned in 10 mm size classes, n = 5/size class). Size classes were evenly distributed among blocks (n = 5), with each block including a control alga (i.e., <em>C. nereostratum</em> caged alone) to account for algal growth as well as loss due to factors other than herbivory (see calculation below). Urchins were individually housed with a single <em>C. nereostratum</em> colony. We assessed the blotted wet mass of each <em>C. nereostratum</em> at the beginning of the assay, then again after 10 days. We calculated the (corrected) amount of <em>C. nereostratum</em> consumed in each assay using the equation [Ti x (Cf/Ci)] - Tf, where Ti and Tf is the initial and final mass (respectively) of an alga exposed to herbivory and Ci and Cf is the initial and final mass (respectively) of its paired control.</p>
<p>After computing <em>per capita </em>grazing rate ("amount.mg.consumed/day") for each urchin, we also standardized each <em>per capita</em> grazing rate by the estimated biomass (calculated via a known size-weight relationship) of the individual urchin ("amount.mg.consumed/d/gram.urchin").</p>
<p>Finally, we quantified the maximum depth (mm) to which each urchin grazed <em>C. nereostratum </em>by examining each sample under a microscope and measuring the depth of the most significant grazing scar using an ocular micrometer.</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing Notes:<br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions</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