http://lod.bco-dmo.org/id/dataset/755883
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
2019-02-15
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
PAR measurements from kelp forests and urchin barrens on the Aleutian Islands, Alaska from R/V Oceanus cruises OC1606A and OC1707A during 2016-2017
2019-11-19
publication
2019-11-19
revision
BCO-DMO Linked Data URI
2019-11-19
creation
http://lod.bco-dmo.org/id/dataset/755883
Matthew Edwards
San Diego State University
principalInvestigator
Brenda Konar
University of Alaska Fairbanks
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: Edwards, M., Konar, B. (2019) PAR measurements from kelp forests and urchin barrens on the Aleutian Islands, Alaska from R/V Oceanus cruises OC1606A and OC1707A during 2016-2017. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-11-19 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/755883 [access date]
Estimates of benthic primary production and respiration in kelp forests and urchin barrens Dataset Description: <p>Estimates of benthic primary production and respiration in kelp forests and urchin barrens in the<strong>&nbsp;</strong>Aleutian Archipelago, Alaska (Attu, Nizki, Kiska, Atka, Adak, Chuginadak, Tanaga, Amchitka, Yunaska, Unmak, and Unalaska).</p> Methods and Sampling: <p>We deployed 3 benthic chambers in each of three habitats (kelp forests, urchin barrens, and transition zones) at each of 10 islands in the Aleutian Archipelago. Each chamber was equipped with a data logger for dissolved oxygen (PME Minidot) and light (Odyssey PAR) and were left on the benthos for 36 hours. These data are hourly totals for light irradiance data for each habitat type at each island.</p>
<p>Data were collected each minute while deployed. Data were ultimately summed for each hour. Data are presented in different tabs for each island.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1435194 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1435194
completed
Matthew Edwards
San Diego State University
Department of Biology San Diego State University
San Diego
CA
92182
USA
medwards@mail.sdsu.edu
pointOfContact
Brenda Konar
University of Alaska Fairbanks
9074745028
College of Fisheries and Ocean Sciences
Fairbanks
AK
99709
bhkonar@alaska.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Island
lat
lon
Date
Time
Sensor_num
Serial
Habitat
umol_photon_m2_hour
Date_yyyymmdd
PME Minidot Oxygen loggers
Odyssey PAR Logger
theme
None, User defined
site
latitude
longitude
date
time of day
instrument
site description
irradiance
featureType
BCO-DMO Standard Parameters
Oxygen Sensor
Photosynthetically Available Radiation Sensor
instrument
BCO-DMO Standard Instruments
OC1606A
OC1707A
service
Deployment Activity
Aleutian Islands, Alaska
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.
Collaborative Research: Changes in ecosystem production and benthic biodiversity following the widespread loss of an ecosystem engineer
http://sdsukelp.weebly.com/blog
Collaborative Research: Changes in ecosystem production and benthic biodiversity following the widespread loss of an ecosystem engineer
<p><strong>NSF abstract: </strong></p>
<p>In many ecosystems the presence of a single dominant species can modify the physical conditions of the environment and alter patterns of biodiversity, nutrient cycling, and primary production. Losses of these "ecosystem engineers" can have profound impacts to how ecosystems function. Coastal kelps provide excellent examples of organisms whose structure modifies the physical characteristics of their habitats (light, nutrients, water motion) and supports enhanced biodiversity. The kelp forests in the coastal waters of the Aleutian Archipelago have suffered large-scale declines over the past several decades. This project will examine how these losses impact patterns of ecosystem production and biodiversity using a combination of techniques ranging from in situ benthic chambers and shipboard incubations to remote sensing using satellite imagery. The results will provide an understanding of how such events may impact this and other ecosystems. This project will support graduate students and will introduce the public to the Aleutian ecosystems in a series of videos. The investigators will also work with a San Diego high school teacher to integrate project findings into classroom activities, and they expect to involve a teacher in their field program.</p>
<p>The investigators will ask two highly integrated questions: 1) How do the widespread losses of kelp forests impact benthic productivity across the Aleutian Archipelago? 2) How do the widespread losses of kelp forests impact benthic biodiversity and community structure across the archipelago? To address these, the investigators will estimate changes to productivity at ten islands where they have historic data on seaweed community composition and estimates of kelp canopy cover. They will use in situ benthic chambers placed in both kelp forests and urchin barrens to measure plot-scale patterns of net ecosystem productivity (NEP), and shipboard incubations to examine net primary productivity (NPP) for the dominant macroalgae. Data for individual species rates of NPP will be scaled by their biomass and combined with in situ plot-scale benthic chamber experiments of whole communities to estimate NEP at the islands visited. These estimates will be scaled up to calculate NEP across the entire archipelago by first extrapolating results from the study sites to entire islands, and then across the archipelago. They will also estimate broad-scale patterns in production by characterizing water column irradiances across the archipelago and modeling NPP using species-level relationships between irradiance and photosynthesis. Coupling these with estimates of water column irradiance and community respiration will allow modeling of NEP across this region. Benthic biodiversity will be assessed using diver surveys and shipboard benthic trawls. Following these activities, satellite remote sensing of the kelp canopies dating back to the 1980s and the investigators' own historical data on benthic macroalgal abundances at these and other islands will be used to estimate the temporal and spatial patterns of change across the archipelago.</p>
<p><strong>For more information see:</strong></p>
<p>Project blog: <a href="http://sdsukelp.weebly.com/blog" target="_blank">http://sdsukelp.weebly.com/blog</a><br />
Project website: <a href="http://www.uaf.edu/cfos/research/projects/collaborative-research--/">http://www.uaf.edu/cfos/research/projects/collaborative-research--/</a></p>
Kelp Forest Ecosystem Engineer Loss
largerWorkCitation
project
eng; USA
oceans
Aleutian Islands, Alaska
177.60144
-179.30663
51.41008
53.38962
2016-06-17
2017-07-23
Aleutian Islands Alaska (Attu Island to Unalaska)
0
BCO-DMO catalogue of parameters from PAR measurements from kelp forests and urchin barrens on the Aleutian Islands, Alaska from R/V Oceanus cruises OC1606A and OC1707A during 2016-2017
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/755897.rdf
Name: Island
Units: unitless
Description: <p>Island name</p>
http://lod.bco-dmo.org/id/dataset-parameter/755898.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude of measurement; positive values = North</p>
http://lod.bco-dmo.org/id/dataset-parameter/755899.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude of measurement; positive values = East</p>
http://lod.bco-dmo.org/id/dataset-parameter/755900.rdf
Name: Date
Units: unitless
Description: <p>Date; format: dd/mm/yyyy</p>
http://lod.bco-dmo.org/id/dataset-parameter/755901.rdf
Name: Time
Units: unitless
Description: <p>Time of day; 24-hr clock; format: HH:MM:SS</p>
http://lod.bco-dmo.org/id/dataset-parameter/755902.rdf
Name: Sensor_num
Units: unitless
Description: <p>Sensor number</p>
http://lod.bco-dmo.org/id/dataset-parameter/755903.rdf
Name: Serial
Units: unitless
Description: <p>Sensor serial number</p>
http://lod.bco-dmo.org/id/dataset-parameter/755904.rdf
Name: Habitat
Units: unitless
Description: <p>Habitat type</p>
http://lod.bco-dmo.org/id/dataset-parameter/755905.rdf
Name: umol_photon_m2_hour
Units: micromoles photons per square meter per hour (umol photons/m2/hr)
Description: <p>Irrandiance measurement</p>
http://lod.bco-dmo.org/id/dataset-parameter/755906.rdf
Name: Date_yyyymmdd
Units: unitless
Description: <p>Date formatted as yyyymmdd</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
145075
https://datadocs.bco-dmo.org/file/nGGl0z0TlXQOxM/PAR.csv
PAR.csv
Primary data file for dataset ID 755883
download
https://osprey.bco-dmo.org/dataset/755883/data/download
download
onLine
dataset
<p>We deployed 3 benthic chambers in each of three habitats (kelp forests, urchin barrens, and transition zones) at each of 10 islands in the Aleutian Archipelago. Each chamber was equipped with a data logger for dissolved oxygen (PME Minidot) and light (Odyssey PAR) and were left on the benthos for 36 hours. These data are hourly totals for light irradiance data for each habitat type at each island.</p>
<p>Data were collected each minute while deployed. Data were ultimately summed for each hour. Data are presented in different tabs for each island.</p>
Specified by the Principal Investigator(s)
<p>We used MS Excel and R-Studio to summarize and QA the data.</p>
<p>BCO-DMO Processing:<br />
- inserted latitude and longitude for each site;<br />
- added column with date formatted as yyyymmdd for clarity;<br />
- added date to&nbsp;Nizki site.</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
PME Minidot Oxygen loggers
PME Minidot Oxygen loggers
PI Supplied Instrument Name: PME Minidot Oxygen loggers Instrument Name: Oxygen Sensor Instrument Short Name:Dissolved Oxygen Sensor Instrument Description: An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed
Odyssey PAR Logger
Odyssey PAR Logger
PI Supplied Instrument Name: Odyssey PAR Logger Instrument Name: Photosynthetically Available Radiation Sensor Instrument Short Name:PAR sensor Instrument Description: A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/122/
Cruise: OC1606A
OC1606A
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC1606A
Genoa Sullaway
San Diego State University
Cruise: OC1707A
OC1707A
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC1707A
Matthew Edwards
San Diego State University
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel