http://lod.bco-dmo.org/id/dataset/882064
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
2022-10-10
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Macroalgal carbon and nitrogen data collected as part of macroalgal surveys in Sitka Sound, Alaska kelp beds from 2018 to 2020
2022-10-11
publication
2022-10-11
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2022-10-17
publication
https://doi.org/10.26008/1912/bco-dmo.882064.1
Kristy J. Kroeker
University of California-Santa Cruz
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: Bell, L. E., Kroeker, K. J. (2022) Macroalgal carbon and nitrogen data collected as part of macroalgal surveys in Sitka Sound, Alaska kelp beds from 2018 to 2020. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2022-10-11 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.882064.1 [access date]
Methods and Sampling: <p dir="ltr">Coincident with monthly sampling of seawater for nutrient concentrations (see related dataset "Nutrient monitoring" https://www.bco-dmo.org/dataset/882057), we collected surface blades from M. pyrifera in the Breast Is. giant kelp bed from July 2018 - July 2019 to analyze for carbon (C) and nitrogen (N) content. On one frond from each plant (N = 3), we identified and removed the second intact blade closest to the frond’s scimitar blade. To capture seasonal variation in C and N content in kelp species in July 2018, January 2019, and August 2019, we collected blades from M. pyrifera plants (N = 5) at&nbsp; ~1 m above their holdfasts and blades (N = 5) of N. fimbriatum and H. nigripes between 4 - 7 m depth (MLLW) at Samsing Pinnacle. We also opportunistically collected blades (N = 3-5) representing all kelp species present at Harris Is. in summer 2018 and 2020 and at Samsing Pinnacle in summer 2020. For all macroalgal tissue field collections, we immediately drained collected samples of excess seawater and kept them on ice in a covered cooler for transport to the lab. Within 2 hours of collection, we cleaned collected tissue of epiphytes and rinsed it briefly in fresh seawater. From all collected blades we excised 1 - 5 g of tissue immediately adjacent to the intercalary meristem where the blade meets the stipe. We spun tissue samples 10 times in a salad spinner before drying at 60 ℃ for at least 24 hrs. Dried samples were analyzed for C and N content (% dry mass) by the University of California Santa Cruz Stable Isotope Laboratory using a CE Instruments NC2500 elemental analyzer coupled to a Thermo Scientific DELTAplus XP isotope ratio mass spectrometer via a Thermo-Scientific Conflo III (routine measurement error ≤ 1.0 %C and ≤ 0.2 %N).&nbsp;<br />
<br />
Additional Funding Details:<br />
In addition to primary funding from the NSF award OCE-1752600&nbsp;additional funding was provided&nbsp;from&nbsp;The David and Lucile Packard Foundation and the&nbsp;North Pacific Research Board’s Graduate Student Research Award (1748-01) to&nbsp;Lauren Bell, PhD University of California Santa Cruz, Award title: "Fish Habitat, Fishes and Invertebrates, Lower Trophic Level Productivity Effect of substrate on herring roe response to global change."</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1752600 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1752600
completed
Kristy J. Kroeker
University of California-Santa Cruz
831-566-8253
100 Shaffer Road
Santa Cruz
CA
95060
USA
kkroeker@ucsc.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
collection_date
coll_time
ISO_DateTime_UTC
depth_uncorr
Season
Site
Latitude
Longitude
Sp
ind_ID
fronds_1m
blade_height_m
blade_maxlength_cm
blade_maxwidth_cm
d13C
wt_prctC
mass_ugC
d15N
wt_prctN
mass_ugN
C_N
CE Instruments NC2500
Thermo Scientific DELTAplus XP
theme
None, User defined
date_local
time_local
ISO_DateTime_UTC
depth
site description
site
latitude
longitude
taxon_code
individual
No BCO-DMO term
length
d13C
Elemental carbon (C)
d15N
Nitrogen
Carbon to Nitrogen ratio (C:N)
featureType
BCO-DMO Standard Parameters
Elemental Analyzer
Mass Spectrometer
instrument
BCO-DMO Standard Instruments
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.
CAREER: Energy fluxes and community stability in a dynamic, high-latitude kelp ecosystem
https://osprey.bco-dmo.org/project/756735
CAREER: Energy fluxes and community stability in a dynamic, high-latitude kelp ecosystem
<p><em>NSF Award Abstract:</em><br />
High latitude kelp forests support a wealth of ecologically and economically important species, buffer coastlines from high-energy storms, and play a critical role in the marine carbon cycle by sequestering and storing large amounts of carbon. Understanding how energy fluxes and consumer-resource interactions vary in these kelp communities is critical for defining robust management strategies that help maintain these valuable ecosystem services. In this integrated research and education program, the project team will investigate how consumer populations respond to variability in temperature, carbonate chemistry and resource quality to influence the food webs and ecosystem stability of kelp forests. A comprehensive suite of studies conducted at the northern range limit for giant kelp (Macrocystis pyrifera) in SE Alaska will examine how kelp communities respond to variable environmental conditions arising from seasonal variability and changing ocean temperature and acidification conditions. As part of this project, undergraduate and high school students will receive comprehensive training through (1) an immersive field-based class in Sitka Sound, Alaska, (2) intensive, mentored research internships, and (3) experiential training in science communication and public outreach that will include a variety of opportunities to disseminate research findings through podcasts, public lectures and radio broadcasts.</p>
<p>Consumer-resource interactions structure food webs and govern ecosystem stability, yet our understanding of how these important interactions may change under future climatic conditions is hampered by the complexity of direct and indirect effects of multiple stressors within and between trophic levels. For example, environmentally mediated changes in nutritional quality and chemical deterrence of primary producers have the potential to alter herbivory rates and energy fluxes between primary producers and consumers, with implications for ecosystem stability. Moreover, the effects of global change on primary producers are likely to depend on other limiting resources, such as light and nutrients, which vary seasonally in dynamic, temperate and high latitude ecosystems. In marine ecosystems at high latitude, climate models predict that ocean acidification will be most pronounced during the winter months, when primary production is limited by light. This project is built around the hypothesis that there could be a mismatch in the energetic demands of primary consumers caused by warming and ocean acidification and resource availability and quality during winter months, with cascading effects on trophic structure and ecosystem stability in the future. Through complementary lab and field experiments, the project team will determine 1) how temperature and carbonate chemistry combine to affect primary consumer bioenergetics across a diversity of species and 2) the indirect effects of ocean acidification and warming on primary consumers via environmentally mediated changes in the availability, nutritional quality and palatability of primary producers across seasons. Using the data from the laboratory and field experiments, the project team will 3) construct a model of the emergent effects of warming and ocean acidification on trophic structure and ecosystem stability in seasonally dynamic, high latitude environments.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
High latitude kelp dynamics
largerWorkCitation
project
eng; USA
oceans
-135.357
-135.278
56.9875
57.039
2018-07-23
2020-07-31
SE Alaskan coastal waters
0
BCO-DMO catalogue of parameters from Macroalgal carbon and nitrogen data collected as part of macroalgal surveys in Sitka Sound, Alaska kelp beds from 2018 to 2020
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/882237.rdf
Name: collection_date
Units: unitless
Description: <p>Date of macroalgal sample collection in ISO 8601 format (YYYY-MM-DD), recorded in timezone AKT/AKST</p>
http://lod.bco-dmo.org/id/dataset-parameter/882238.rdf
Name: coll_time
Units: unitless
Description: <p>Time of macroalgal sample collection in ISO 8601 format (YYYY-MM-DD), recorded in timezone AKT/AKST</p>
http://lod.bco-dmo.org/id/dataset-parameter/882239.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Collection datetime with time zone (UTC) in ISO 8601 format (YYYY-MM-DDThh:mmZ).</p>
http://lod.bco-dmo.org/id/dataset-parameter/882240.rdf
Name: depth_uncorr
Units: unitless
Description: <p>Depth at time of macroalgal sample collection, uncorrected to tide level. Detection limit: 1 ft</p>
http://lod.bco-dmo.org/id/dataset-parameter/882241.rdf
Name: Season
Units: unitless
Description: <p>Sampling season</p>
http://lod.bco-dmo.org/id/dataset-parameter/882242.rdf
Name: Site
Units: unitless
Description: <p>Name of rocky reef location in Sitka Sound where sampling occurred</p>
http://lod.bco-dmo.org/id/dataset-parameter/882243.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Site latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/882244.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Site longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/882245.rdf
Name: Sp
Units: unitless
Description: <p>Species of macroalga surveyed (MPYR = Macrocystis pyrifera, NFIM = Neoagarum fimbriatum, HNIG = Hedophyllum nigripes, ACLA = Agarum clathratum, PGAR = Pleurophycus gardneri, LSET = Laminaria setchellii)</p>
http://lod.bco-dmo.org/id/dataset-parameter/882246.rdf
Name: ind_ID
Units: unitless
Description: <p>Alpha-numeric identifier for each macroalgal individual. Unique by site and survey date.</p>
http://lod.bco-dmo.org/id/dataset-parameter/882247.rdf
Name: fronds_1m
Units: fronds
Description: <p>Number of fronds at 1m above top of holdfast on sampled sporophyte (MPYR only). Also known as frond density. Detection limit: 1 frond</p>
http://lod.bco-dmo.org/id/dataset-parameter/882248.rdf
Name: blade_height_m
Units: meters (m)
Description: <p>Height above holdfast where blade collected (MPYR only). Detection limit: 0.5m</p>
http://lod.bco-dmo.org/id/dataset-parameter/882249.rdf
Name: blade_maxlength_cm
Units: centimeters (cm)
Description: <p>Maximum blade length of collected individual. Detection limit: 0.1 cm</p>
http://lod.bco-dmo.org/id/dataset-parameter/882250.rdf
Name: blade_maxwidth_cm
Units: centimeters (cm)
Description: <p>Maximum blade width of collected individual. Detection limit: 0.1 cm</p>
http://lod.bco-dmo.org/id/dataset-parameter/882251.rdf
Name: d13C
Units: per mil (0/00)
Description: <p>d13C value of blade tissue. Detection limit: 0.01 ‰</p>
http://lod.bco-dmo.org/id/dataset-parameter/882252.rdf
Name: wt_prctC
Units: percent (%)
Description: <p>percentage carbon by weight. Detection limit: 0.1%</p>
http://lod.bco-dmo.org/id/dataset-parameter/882253.rdf
Name: mass_ugC
Units: micrograms of carbon (ug C)
Description: <p>Carbon mass of blade tissue. Detection limit: 1 µg</p>
http://lod.bco-dmo.org/id/dataset-parameter/882254.rdf
Name: d15N
Units: per mil (0/00)
Description: <p>d15N value of blade tissue. Detection limit: 0.01 ‰</p>
http://lod.bco-dmo.org/id/dataset-parameter/882255.rdf
Name: wt_prctN
Units: percent (%)
Description: <p>percentage nitrogen by weight. Detection limit: 0.1%</p>
http://lod.bco-dmo.org/id/dataset-parameter/882256.rdf
Name: mass_ugN
Units: micrograms of nitrogen (ug N)
Description: <p>Nitrogen mass of blade tissue. Detection limit: 1 µg</p>
http://lod.bco-dmo.org/id/dataset-parameter/882257.rdf
Name: C_N
Units: unitless
Description: <p>Carbon to nitrogen ratio (mol:mol). Detection limit: 0.1</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
16315
https://darchive.mblwhoilibrary.org/bitstream/1912/29434/1/dataset-882064_macroalgal-carbon-and-nitrogen-content__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.882064.1
download
onLine
dataset
<p dir="ltr">Coincident with monthly sampling of seawater for nutrient concentrations (see related dataset "Nutrient monitoring" https://www.bco-dmo.org/dataset/882057), we collected surface blades from M. pyrifera in the Breast Is. giant kelp bed from July 2018 - July 2019 to analyze for carbon (C) and nitrogen (N) content. On one frond from each plant (N = 3), we identified and removed the second intact blade closest to the frond’s scimitar blade. To capture seasonal variation in C and N content in kelp species in July 2018, January 2019, and August 2019, we collected blades from M. pyrifera plants (N = 5) at&nbsp; ~1 m above their holdfasts and blades (N = 5) of N. fimbriatum and H. nigripes between 4 - 7 m depth (MLLW) at Samsing Pinnacle. We also opportunistically collected blades (N = 3-5) representing all kelp species present at Harris Is. in summer 2018 and 2020 and at Samsing Pinnacle in summer 2020. For all macroalgal tissue field collections, we immediately drained collected samples of excess seawater and kept them on ice in a covered cooler for transport to the lab. Within 2 hours of collection, we cleaned collected tissue of epiphytes and rinsed it briefly in fresh seawater. From all collected blades we excised 1 - 5 g of tissue immediately adjacent to the intercalary meristem where the blade meets the stipe. We spun tissue samples 10 times in a salad spinner before drying at 60 ℃ for at least 24 hrs. Dried samples were analyzed for C and N content (% dry mass) by the University of California Santa Cruz Stable Isotope Laboratory using a CE Instruments NC2500 elemental analyzer coupled to a Thermo Scientific DELTAplus XP isotope ratio mass spectrometer via a Thermo-Scientific Conflo III (routine measurement error ≤ 1.0 %C and ≤ 0.2 %N).&nbsp;<br />
<br />
Additional Funding Details:<br />
In addition to primary funding from the NSF award OCE-1752600&nbsp;additional funding was provided&nbsp;from&nbsp;The David and Lucile Packard Foundation and the&nbsp;North Pacific Research Board’s Graduate Student Research Award (1748-01) to&nbsp;Lauren Bell, PhD University of California Santa Cruz, Award title: "Fish Habitat, Fishes and Invertebrates, Lower Trophic Level Productivity Effect of substrate on herring roe response to global change."</p>
Specified by the Principal Investigator(s)
BCO-DMO Data Manager Processing Notes:
* File “Sitkakelps_CN.csv” imported into the BCO-DMO data system.
* Date format changed to ISO format
* ISO_DateTime_UTC added from local date and time (AKT/AKST)
* Species list with codes and scientific names extracted from parameter information. Matched to known taxon ids using WoRMS taxa match (2022-09-06). The spelling of "Laminaria setchelii" changed to "Laminaria setchellii" with two Ls after confirming the change with the data submitter. Species list along with identifiers attached as a supplemental data table.
* Latitude and Longitude added to main data table from the provided site list.
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
CE Instruments NC2500
CE Instruments NC2500
PI Supplied Instrument Name: CE Instruments NC2500 PI Supplied Instrument Description:CE Instruments NC2500 elemental analyzer coupled to a Thermo Scientific DELTAplus XP isotope ratio mass spectrometer via a Thermo-Scientific Conflo III (routine measurement error ≤ 1.0 %C and ≤ 0.2 %N). Instrument Name: Elemental Analyzer Instrument Short Name: Instrument Description: Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/
Thermo Scientific DELTAplus XP
Thermo Scientific DELTAplus XP
PI Supplied Instrument Name: Thermo Scientific DELTAplus XP PI Supplied Instrument Description:CE Instruments NC2500 elemental analyzer coupled to a Thermo Scientific DELTAplus XP isotope ratio mass spectrometer via a Thermo-Scientific Conflo III (routine measurement error ≤ 1.0 %C and ≤ 0.2 %N). Instrument Name: Mass Spectrometer Instrument Short Name:Mass Spec Instrument Description: General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/