http://lod.bco-dmo.org/id/dataset/699862
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
2017-05-09
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Mussel bed phototransects surveyed between July 2011 and June 2015 on rocky intertidal shorelines of Barkley Sound, British Columbia, Canada
2018-01-18
publication
2018-01-18
revision
BCO-DMO Linked Data URI
2018-01-18
creation
http://lod.bco-dmo.org/id/dataset/699862
Dr Carlos Robles
California State University Los Angeles
principalInvestigator
Dr Corey Garza
California State University Monterey Bay
principalInvestigator
Dr Patricia Halpin
University of California-Los Angeles
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: Robles, C., Halpin, P., Garza, C. (2018) Mussel bed phototransects surveyed between July 2011 and June 2015 on rocky intertidal shorelines of Barkley Sound, British Columbia, Canada. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2018-01-18 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/699862 [access date]
Phototransects of rocky intertidal mussel beds Dataset Description: <p>This dataset contains phototransects of rocky&nbsp;intertidal mussel beds. Images were collected between July 2011 and June 2015&nbsp;&nbsp;on shorelines in the area of Barkley Sound, British Columbia, Canada.</p> Methods and Sampling: <p>Photos were taken between 2011-07-27 and 2015-06-19. &nbsp;Mussel beds imaged were between approximately 1.5m and 4.5m above mean lower low water (MLLW) in areas of moderate to heavy wave exposure.&nbsp;Permanent transects were established at 8 sites using stainless steel bolts and washers affixed to the rock. Ends of each transect were of the same tidal height. Transects were spaced 2m apart in the xy plane.</p>
<p>For photography, transect lines were placed between bolts at each of three tide heights. Plastic livestock tags were placed, at minimum, at 1m intervals along the transect. Additional tags were placed midway between each tag on the line (estimated by eye), and above and below the transect lines at similar intervals. Additional tags were placed as needed to ensure that tags appeared in each photograph and to mark features of interest such as hummocks.</p>
<p>Photos were taken with a Nikon DSLR D300(B), with an AF-S Nikkor 18-55mm lens. Lens was set at 18mm for all photos. The camera was mounted on a survey pole with a camera armature mounted on top. The armature extends 1m horizontally from the pole. The survey pole was extended vertically to 2.25m for the photos and a remote used to trigger each photo. The survey pole spirit level was used to ensure the camera was as parallel to the xy plane as possible. For each photo, the camera was centered over each tag placed at 1m intervals on the transect line and at the tags placed midway between each transect. A laser pointer attached to the camera helped center each photo. Additional photos were taken as needed to ensure complete coverage of the area, particularly above and below the uppermost and lowermost transect lines.</p>
<p>Zip files containing the phototransects for each site are available on the data page and can be found by pressing the "Get Data" button.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1130414 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1130414
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1131013 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1131013
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1131201 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1131201
completed
Dr Carlos Robles
California State University Los Angeles
323-343-2067
Department of Biological Sciences - BS143 5151 State University Dr.
Los Angeles
CA
90032-8201
USA
cdrobles49@gmail.com
pointOfContact
Dr Corey Garza
California State University Monterey Bay
831-582-3024
Chapman Science Academic Center 100 Campus Center
Seaside
CA
93955-8001
USA
cogarza@csumb.edu
pointOfContact
Dr Patricia Halpin
University of California-Los Angeles
Dept. of Ecology and Evolutionary Biology 621 Charles E. Young Drive South
Los Angeles
CA
90095-1606
USA
halpin@ucla.edu
pointOfContact
asNeeded
Unknown
site_id
location
lat
lon
description
site_images_link
imagename
year
date
time
ISO_DateTime_UTC
width
height
image_link
image_thumbnail
Nikon DSLR D300(B)
theme
None, User defined
site
site description
latitude
longitude
file_link
file_name
year
date
time of day
ISO_DateTime_UTC
width
height
featureType
BCO-DMO Standard Parameters
Camera
instrument
BCO-DMO Standard Instruments
Robles_Mussel_Bed_Disturbance
service
Deployment Activity
British Columbia
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.
Spatial Realism in the Mussel Bed Disturbance Paradigm
https://osprey.bco-dmo.org/project/541233
Spatial Realism in the Mussel Bed Disturbance Paradigm
<p><em>Project description from NSF award abstract:</em><br />
Our understanding of how physical disturbance shapes the structure of populations and communities owes much to field studies of wave-generated gap formation in mussel beds. Prior studies depict mussel beds as a non-equilibrium system, in which disturbance is spatially unpredictable, generating a random patchwork of mussel cover and gaps. This project will test assumptions and predictions of an alternative view -- that disturbance shows predictable landscape patterns that depend not merely on spatial distribution of external forcing (wave stress) but also on biological processes determining the structure of the aggregation. Specifically, spatially varying mussel productivity (recruitment and growth), physiological stress, and predation interact to produce landscape patterns in the structure of the mussel cover. Certain regions of the mussel bed develop as mono-layers attached directly to the rock, resisting disturbance. Other regions develop in multi-layered configurations that when very deep force superficial mussels to attach solely to adjacent mussels instead of the rock surface, and cause interior mussels to only weakly attach to either rock or one another, favoring propagating disturbances. Therefore, spatial patterns of gap formation and recovery emerge from a unified landscape process.</p>
<p>Field work for this project emphasizes construction of a detailed GIS database using some innovative sampling methods applied to >10 mussel bed sites in Barkley Sound, British Columbia. GIS data layers for each site include wave force, topography (tidal height, slope, and aspect), mussel size structure, mussel bed thickness, differentiation of layering, and size-specific attachment strengths stratified by layer. GIS interpolations and regression analyses will be used to first examine assumptions of the hypothetical landscape process and then test specific predictions regarding spatial patterns in the occurrence of disturbance and recovery. Finally, controlled field experiments will test the key proposition that different mussel bed structures cause different resistance to-, extent of-, and recovery from disturbance.</p>
<p>The landscape disturbance hypothesis includes several processes that differ from previous conceptualizations of disturbance in this system: steady state (equilibrium) structures influence the likelihood that hydrodynamic stresses initiate a disturbance and whether once initiated the disturbance will propagate. Thus, equilibrium processes condition essential features of the disturbance process. Disturbance is predictable within probabilistic limits, and the landscape patterns of disturbance reflect in considerable measure the biological characteristics of a foundation species. This reframing of the disturbance paradigm may apply to a diverse array of layered ecosystems subject to perturbations (e.g. biofilms, coral reefs, forests).</p>
Mussel Bed Disturbance
largerWorkCitation
project
eng; USA
oceans
British Columbia
-125.20371
-125.14912
48.83267
48.86507
2011-07-27
2015-06-19
Intertidal and nearshore subtidal of Barkley Sound, British Columbia
0
BCO-DMO catalogue of parameters from Mussel bed phototransects surveyed between July 2011 and June 2015 on rocky intertidal shorelines of Barkley Sound, British Columbia, Canada
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/700594.rdf
Name: site_id
Units: unitless
Description: <p>Identifier for site</p>
http://lod.bco-dmo.org/id/dataset-parameter/700595.rdf
Name: location
Units: unitless
Description: <p>Geographic name for the site</p>
http://lod.bco-dmo.org/id/dataset-parameter/700596.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude of survey site.</p>
http://lod.bco-dmo.org/id/dataset-parameter/700597.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude of survey site; west is negative.</p>
http://lod.bco-dmo.org/id/dataset-parameter/700598.rdf
Name: description
Units: unitless
Description: <p>Description of survey site</p>
http://lod.bco-dmo.org/id/dataset-parameter/700599.rdf
Name: site_images_link
Units: unitless
Description: <p>Link to download all phototransect images for each site</p>
http://lod.bco-dmo.org/id/dataset-parameter/700600.rdf
Name: imagename
Units: unitless
Description: <p>Filename of image</p>
http://lod.bco-dmo.org/id/dataset-parameter/700601.rdf
Name: year
Units: unitlss
Description: <p>Year image taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/700602.rdf
Name: date
Units: unitless
Description: <p>Local date image taken in format yyyy-mm-dd</p>
http://lod.bco-dmo.org/id/dataset-parameter/700603.rdf
Name: time
Units: unitless
Description: <p>Local time image taken in format HH:MM:SS</p>
http://lod.bco-dmo.org/id/dataset-parameter/700604.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Timestamp when image was taken in ISO 8601:2004(E) standard format YYYY-mm-ddTHH:MM:SSZ (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/700605.rdf
Name: width
Units: pixels
Description: <p>Width of image</p>
http://lod.bco-dmo.org/id/dataset-parameter/700606.rdf
Name: height
Units: pixels
Description: <p>Height of image</p>
http://lod.bco-dmo.org/id/dataset-parameter/700607.rdf
Name: image_link
Units: unitless
Description: <p>Link to full-size image; formatted in HTML using a hyperlink</p>
http://lod.bco-dmo.org/id/dataset-parameter/700608.rdf
Name: image_thumbnail
Units: unitless
Description: <p>Link to thumbnail of image for display purposes. Formatted in HTML using <img> tag; Thumbnail files are 100px in heigth with various widths</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
2088871
https://datadocs.bco-dmo.org/file/wnnxzmKcGWmzyO/images.csv
images.csv
Primary data file for dataset ID 699862
download
https://osprey.bco-dmo.org/dataset/699862/data/download
download
onLine
dataset
<p>Photos were taken between 2011-07-27 and 2015-06-19. &nbsp;Mussel beds imaged were between approximately 1.5m and 4.5m above mean lower low water (MLLW) in areas of moderate to heavy wave exposure.&nbsp;Permanent transects were established at 8 sites using stainless steel bolts and washers affixed to the rock. Ends of each transect were of the same tidal height. Transects were spaced 2m apart in the xy plane.</p>
<p>For photography, transect lines were placed between bolts at each of three tide heights. Plastic livestock tags were placed, at minimum, at 1m intervals along the transect. Additional tags were placed midway between each tag on the line (estimated by eye), and above and below the transect lines at similar intervals. Additional tags were placed as needed to ensure that tags appeared in each photograph and to mark features of interest such as hummocks.</p>
<p>Photos were taken with a Nikon DSLR D300(B), with an AF-S Nikkor 18-55mm lens. Lens was set at 18mm for all photos. The camera was mounted on a survey pole with a camera armature mounted on top. The armature extends 1m horizontally from the pole. The survey pole was extended vertically to 2.25m for the photos and a remote used to trigger each photo. The survey pole spirit level was used to ensure the camera was as parallel to the xy plane as possible. For each photo, the camera was centered over each tag placed at 1m intervals on the transect line and at the tags placed midway between each transect. A laser pointer attached to the camera helped center each photo. Additional photos were taken as needed to ensure complete coverage of the area, particularly above and below the uppermost and lowermost transect lines.</p>
<p>Zip files containing the phototransects for each site are available on the data page and can be found by pressing the "Get Data" button.</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Data Manager Processing Notes:<br />
* added a conventional header with dataset name, PI name, version date<br />
* Images indexed and dimensions (length,width)&nbsp;in pixels, and original timestamp of image acquisition&nbsp;added<br />
* added ISO timestamp generated from Date and Time the image was taken.<br />
* Zip files of images made for each survey site, and link to download zip files added to dataset as "image_download_link"<br />
* Image thumbnails of 100px height made for display purposes, individual original images available as "image_link" in the dataset.<br />
* data version 2: 2018-01-18 replaces data version 1:&nbsp;2017-05-19.&nbsp; Deleted duplicate GB value of one file download link text.&nbsp; Reformatted display of data to prevent error in live data view where the user is shown an error after clicking a comment with spaces in it.</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
Nikon DSLR D300(B)
Nikon DSLR D300(B)
PI Supplied Instrument Name: Nikon DSLR D300(B) PI Supplied Instrument Description:Nikon DSLR D300(B), with a AF-S Nikkor 18-55mm lens. Lens was set at 18mm for all photos. Instrument Name: Camera Instrument Short Name:camera Instrument Description: All types of photographic equipment including stills, video, film and digital systems. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/311/
Deployment: Robles_Mussel_Bed_Disturbance
Robles_Mussel_Bed_Disturbance
Robles_Mussel_Bed_Disturbance
shoreside
Robles_Mussel_Bed_Disturbance
Dr Carlos Robles
California State University Los Angeles
Robles_Mussel_Bed_Disturbance
shoreside