http://lod.bco-dmo.org/id/dataset/728465
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
2018-02-27
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Zostera marina and Halodule wrightii shoot counts from quadrats and Zostera marina seed counts from sediment cores in Back Sound, North Carolina between May and July of 2014
2018-04-24
publication
2018-04-24
revision
BCO-DMO Linked Data URI
2018-04-24
creation
http://lod.bco-dmo.org/id/dataset/728465
F. Joel Fodrie
University of North Carolina at Chapel Hill
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: Fodrie, F. J. (2018) Zostera marina and Halodule wrightii shoot counts from quadrats and Zostera marina seed counts from sediment cores in Back Sound, North Carolina between May and July of 2014. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2018-04-24 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/728465 [access date]
Dataset Description: <p>These data relating to fragmentation effects on Zostera seed distribution&nbsp;were utilized in the following publication (Livernois et al., 2017)</p>
<p>Location:&nbsp;Back Sound, North Carolina; N 34º 41’, W 76º 34’</p> Methods and Sampling: <p>To quantify the average shoot density of&nbsp;<em>Z. marina&nbsp;</em>in each bed as well as the ratio of flowering to vegetative shoots, six 0.063 m<sup>2</sup>&nbsp;quadrats were haphazardly placed over&nbsp;vegetated&nbsp;substrate, and all seagrass shoots present within each quadrat were removed by the roots.&nbsp;<em>Z. marina&nbsp;</em>flowering and vegetative shoots were separated and counted in the lab. Sampling occurred in May 2014, when the flowering season was determined to be at its approximate peak based on observations of flowers in the region, and when water temperatures reached the optimal range for flowering, 20-21<sup>o</sup>C (Moore &amp; Short, 2006).</p>
<p>To sample the distribution and density of seeds at specified positions within each bed, 10-cm diameter sediment cores were taken to a depth of approximately 10 cm, as&nbsp;<em>Z. marina&nbsp;</em>seeds are generally buried no deeper below the sediment surface (Morita et al., 2007). Sediment core samples were collected in July 2014, after the flowering season had ended and sufficient time had passed for all seeds to settle. In continuous beds, two transects ran from the center of the bed to the edge. The first transect direction was selected haphazardly, with the second being approximately perpendicular to the first. In each transect, one core sample was taken at the starting point, located at the approximate center of the bed; a second core sample was collected halfway between the center and the edge of the bed, the location of which differed for each bed based on its size; and a third core sample was taken at the edge of the bed.</p>
<p>In fragmented beds, one core sample was taken within each of two different vegetated patches near the center of the bed; within each of two vegetated patches along the edge of the bed; within each of two bare, unvegetated areas in the interior region of the bed; and in each of two bare areas along the edge of the bed (i.e., 8 cores per bed; Fig. 1C.). In both continuous and fragmented beds, two additional transects were used to sample directly outside of the bed. These transects ran perpendicular to the edge of the bed, and one core sample in each transect was collected at the following distances away from the edge of the bed: 0, 2.5, 5, 7.5, 10, and 15 meters.</p>
<p>Each core was wet-sieved in the field in 400-micron mesh bags to wash away sediment. Remaining coring contents were taken to the lab where they were frozen until processed, which involved individually examining them under a dissecting microscope. Any seeds, whether they were fully intact or the casing of an already germinated or dead seed, were identified and counted.&nbsp;<em>Z. marina&nbsp;</em>and&nbsp;<em>H.&nbsp;wrightii&nbsp;</em>shoots in each core were also counted.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1635950 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1635950
completed
F. Joel Fodrie
University of North Carolina at Chapel Hill
252-726-6841
Institute of Marine Sciences & Department of Marine Sciences 3431 Arendell Street
Morehead City
NC
28557
USA
jfodrie@unc.edu
pointOfContact
asNeeded
Unknown
Site
Lat
Lon
Type
Location
Transect_Location
Halodule
Zostera
Total_seeds
Patch_size
Comment
theme
None, User defined
site
latitude
longitude
site description
count
comments
featureType
BCO-DMO Standard Parameters
Fodrie_HabitatFragmentation
service
Deployment Activity
Back Sound, North Carolina
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: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms
https://osprey.bco-dmo.org/project/714026
Collaborative Research: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms
<p>Amount and quality of habitat is thought to be of fundamental importance to maintaining coastal marine ecosystems. This research will use large-scale field experiments to help understand how and why fish populations respond to fragmentation of seagrass habitats. The question is complex because increased fragmentation in seagrass beds decreases the amount and also the configuration of the habitat (one patch splits into many, patches become further apart, the amount of edge increases, etc). Previous work by the investigators in natural seagrass meadows provided evidence that fragmentation interacts with amount of habitat to influence the community dynamics of fishes in coastal marine landscapes. Specifically, fragmentation had no effect when the habitat was large, but had a negative effect when habitat was smaller. In this study, the investigators will build artificial seagrass habitat to use in a series of manipulative field experiments at an ambitious scale. The results will provide new, more specific information about how coastal fish community dynamics are affected by changes in overall amount and fragmentation of seagrass habitat, in concert with factors such as disturbance, larval dispersal, and wave energy. The project will support two early-career investigators, inform habitat conservation strategies for coastal management, and provide training opportunities for graduate and undergraduate students. The investigators plan to target students from underrepresented groups for the research opportunities.</p>
<p>Building on previous research in seagrass environments, this research will conduct a series of field experiments approach at novel, yet relevant scales, to test how habitat area and fragmentation affect fish diversity and productivity. Specifically, 15 by 15-m seagrass beds will be created using artificial seagrass units (ASUs) that control for within-patch-level (~1-10 m2) factors such as shoot density and length. The investigators will employ ASUs to manipulate total habitat area and the degree of fragmentation within seagrass beds in a temperate estuary in North Carolina. In year one, response of the fishes that colonize these landscapes will be measured as abundance, biomass, community structure, as well as taxonomic and functional diversity. Targeted ASU removals will then follow to determine species-specific responses to habitat disturbance. In year two, the landscape array and sampling regime will be doubled, and half of the landscapes will be seeded with post-larval fish of low dispersal ability to test whether pre- or post-recruitment processes drive landscape-scale patterns. In year three, the role of wave exposure (a natural driver of seagrass fragmentation) in mediating fish community response to landscape configuration will be tested by deploying ASU meadows across low and high energy environments.</p>
Habitat Fragmentation
largerWorkCitation
project
eng; USA
oceans
Back Sound, North Carolina
-76.5667
-76.5667
34.6833
34.6833
2014-05-01
2014-07-01
North Carolina
0
BCO-DMO catalogue of parameters from Zostera marina and Halodule wrightii shoot counts from quadrats and Zostera marina seed counts from sediment cores in Back Sound, North Carolina between May and July of 2014
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/734278.rdf
Name: Site
Units: unitless
Description: <p>Code used to identify unique searass meadows. First letter, C/P, indicates whether meadow was contiguous (C ) or patchy (P). Second letter, I/N, indicaates whether meadow was isolated (I) from marsh habitat (>100m), or near (N) marsh habitat. # indicates replicate number of meadow</p>
http://lod.bco-dmo.org/id/dataset-parameter/734279.rdf
Name: Lat
Units: decimal degrees
Description: <p>Seagrass meadow latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/734280.rdf
Name: Lon
Units: decimal degrees
Description: <p>Seagrass meadow longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/734281.rdf
Name: Type
Units: unitless
Description: <p>T = sample was taken along a transect outside the seagrass meadow. Patch = sample was taken inside the seagrass meadow. Sand = sample was taken from sandy area separating seagrass patches within the meadow.</p>
http://lod.bco-dmo.org/id/dataset-parameter/734282.rdf
Name: Location
Units: unitless
Description: <p>For Patch and Sand samples (see 'Type') qualitative characterization of whether sample was collected in the center of the overall meadow (Center), edge of the overall meadow (Edge) or halfway between the center and edge of the overall meadow (Mid)</p>
http://lod.bco-dmo.org/id/dataset-parameter/734283.rdf
Name: Transect_Location
Units: meters (m)
Description: <p>For T samples (see 'Type'), distance outside the seagrass meadow at which sample was taken (relative to the seagrass-sandflat boundary)</p>
http://lod.bco-dmo.org/id/dataset-parameter/734284.rdf
Name: Halodule
Units: individuals
Description: <p>Number of Halodule wrightii shoots in 0.063 m^2 quadrat</p>
http://lod.bco-dmo.org/id/dataset-parameter/734285.rdf
Name: Zostera
Units: individuals
Description: <p>Number of Zostera marina shoots in 0.063 m^2 quadrat</p>
http://lod.bco-dmo.org/id/dataset-parameter/734286.rdf
Name: Total_seeds
Units: individuals
Description: <p>Number of Zostera marina seeds in sediment core (seafloor area sampled 0.008 m^2)</p>
http://lod.bco-dmo.org/id/dataset-parameter/734287.rdf
Name: Patch_size
Units: meters squared (m^2)
Description: <p>Area of individual seagrass patches in which a sample was collected at the center of the patch</p>
http://lod.bco-dmo.org/id/dataset-parameter/734288.rdf
Name: Comment
Units: unitless
Description: <p>Comment</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
10129
https://datadocs.bco-dmo.org/file/6YYMlWguVwyjM3/zostera_seeds.csv
zostera_seeds.csv
Primary data file for dataset ID 728465
download
https://osprey.bco-dmo.org/dataset/728465/data/download
download
onLine
dataset
<p>To quantify the average shoot density of&nbsp;<em>Z. marina&nbsp;</em>in each bed as well as the ratio of flowering to vegetative shoots, six 0.063 m<sup>2</sup>&nbsp;quadrats were haphazardly placed over&nbsp;vegetated&nbsp;substrate, and all seagrass shoots present within each quadrat were removed by the roots.&nbsp;<em>Z. marina&nbsp;</em>flowering and vegetative shoots were separated and counted in the lab. Sampling occurred in May 2014, when the flowering season was determined to be at its approximate peak based on observations of flowers in the region, and when water temperatures reached the optimal range for flowering, 20-21<sup>o</sup>C (Moore &amp; Short, 2006).</p>
<p>To sample the distribution and density of seeds at specified positions within each bed, 10-cm diameter sediment cores were taken to a depth of approximately 10 cm, as&nbsp;<em>Z. marina&nbsp;</em>seeds are generally buried no deeper below the sediment surface (Morita et al., 2007). Sediment core samples were collected in July 2014, after the flowering season had ended and sufficient time had passed for all seeds to settle. In continuous beds, two transects ran from the center of the bed to the edge. The first transect direction was selected haphazardly, with the second being approximately perpendicular to the first. In each transect, one core sample was taken at the starting point, located at the approximate center of the bed; a second core sample was collected halfway between the center and the edge of the bed, the location of which differed for each bed based on its size; and a third core sample was taken at the edge of the bed.</p>
<p>In fragmented beds, one core sample was taken within each of two different vegetated patches near the center of the bed; within each of two vegetated patches along the edge of the bed; within each of two bare, unvegetated areas in the interior region of the bed; and in each of two bare areas along the edge of the bed (i.e., 8 cores per bed; Fig. 1C.). In both continuous and fragmented beds, two additional transects were used to sample directly outside of the bed. These transects ran perpendicular to the edge of the bed, and one core sample in each transect was collected at the following distances away from the edge of the bed: 0, 2.5, 5, 7.5, 10, and 15 meters.</p>
<p>Each core was wet-sieved in the field in 400-micron mesh bags to wash away sediment. Remaining coring contents were taken to the lab where they were frozen until processed, which involved individually examining them under a dissecting microscope. Any seeds, whether they were fully intact or the casing of an already germinated or dead seed, were identified and counted.&nbsp;<em>Z. marina&nbsp;</em>and&nbsp;<em>H.&nbsp;wrightii&nbsp;</em>shoots in each core were also counted.</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 />
* modified parameter names to conform with BCO-DMO naming conventions<br />
* N/A values in this dataset are displayed as the missing data identifier "nd" for "no data" in the BCO-DMO system.<br />
* original Lat_Lon column containing lat and lon degrees and decimal minutes used to create two columns (Lat,Lon) in decimal degrees.<br />
* Comments within Lat_Lon split into a new column "Comments"</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
Deployment: Fodrie_HabitatFragmentation
Fodrie_HabitatFragmentation
Back_Sound_NC
shoreside
Fodrie_HabitatFragmentation
F. Joel Fodrie
University of North Carolina - Morehead City
Back_Sound_NC
shoreside