<div><p>We sampled 86 sites within seagrass habitats throughout Back Sound, North Carolina, USA (3442’ N to 3439’ N, 7637’ W to 7631’ W during July 2013. Sampling sites were located across 21 seagrass landscapes which were defined by 200m x 80m rectangles (matching common isolated bed size and shape within our system). These landscapes were previously selected to represent independent gradients in both total seagrass cover (260-11,764 m2) and landscape patchiness (1-75 individual patches; Yeager et al. 2016). Sampling sites in the current study were haphazardly placed across all 21 landscapes, but always located within seagrass itself, and not the unvegetated matrix. </p>
<p>Seagrass core sampling and laboratory processing:<br />
One core sample was taken from each sampling site. Each core measured 30 cm in diameter and captured the above ground seagrass habitat as well as the top 10 cm of the sediment surface. All cores were taken within 2 h of low tide and the GPS location of each core was marked with a Garmin 72H handheld unit (Garmin International, Olathe, Kansas, USA). Low-tide depth was measured in situ at each site at the time of sampling to the nearest 10 cm. </p>
<p>Seagrass tissue from the cores was separated and rinsed with clean freshwater. Seagrass was sorted by species (Zostera marina and Halodule wrightii). All shoots were enumerated to assess species-specific density and the first 20 shoots from each species were measured to assess maximum canopy height (rounded to the nearest mm). Seagrass was then sorted according to above and below-ground biomass; the above-ground biomass of each species was dried at 60 C for 48 h and weighed to the nearest 0.01 g. </p>
<p>The core (30-cm diameter, PVC) was gently placed by hand at each site and pushed down to a constant depth of 10 cm into the sediment. The core was gently rotated to break seagrass rhizomes, then dug out by hand, lifted, and placed into a resealable 1.5-gallon plastic bag. The sample was transported back to the laboratory on ice. </p>
<p>Shoot heights we averaged across (up to) 20 shoots measured within each core. Mean shoot height per core was calculated using a pivot table in Excel. </p></div>
<div><p><span style="color:rgb(0, 0, 0); font-family:helvetica,arial,sans-serif; font-size:14.4px">These data were published in Yeager et al. (2019). See "Related Datasets" section for other datasets from the same core samples.</span></p></div>
Core samples: Seagrass
<div><p>BCO-DMO Data Manager Processing Notes:<br />
* added a conventional header with dataset name, PI name, version date<br />
* lat and lon rounded to five decimal places<br />
* gram and mm measurement columns rounded to two decimal places.<br />
* date format converted to ISO 8601 standard format yyyy-mm-dd<br />
* data values that were a period, indicating no value, changed to the default missing data identifier in BCO-DMO, "nd" meaning "no data." </p>
<p>data version 2 (2019-06-14) replaces data version 1:<br />
* cells with just a period as a value replaced will no-data values. No-data values in this dataset are displayed as the missing data identifier "nd" for "no data" in the BCO-DMO system.<br />
* Date for CP6 5 changed from 2015-07-16 to 2013-07-16</p></div>
748842
Core samples: Seagrass
2018-10-25T16:23:36-04:00
2018-10-25T16:23:36-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:748842
Seagrass (Zostera marina and Halodule wrightii) shoot count, biomass and shoot height from seagrass bed core samples collected in Back Sound, North Carolina in June and July of 2013
Seagrass (Zostera marina and Halodule wrightii) shoot count, biomass and shoot height from seagrass bed core samples collected in Back Sound, North Carolina in June and July of 2013.
false
Yeager, L. (2019) Seagrass (Zostera marina and Halodule wrightii) shoot count, biomass and shoot height from seagrass bed core samples collected in Back Sound, North Carolina in June and July of 2013. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2) Version Date 2019-06-18 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.748842.2 [access date]
true
2
10.1575/1912/bco-dmo.748842.2
false
Zostera marina
Halodule wrightii
seagrass
biomass
shoot height
shoot denisty
morphometrics
benthic core
2019-06-18
Datapackage.json
Frictionless Data Package
https://www.bco-dmo.org/dataset/748842/datapackage.json
application/vnd.datapackage+json
PDF
https://www.bco-dmo.org/dataset/748842/Dataset_description.pdf
application/pdf
ISO 19115-2 (NOAA Profile)
https://www.bco-dmo.org/dataset/748842/iso
application/xml
http://www.isotc211.org/2005/gmd-noaa
Dublin Core
https://www.bco-dmo.org/dataset/748842/dublin-core
application/xml
http://purl.org/dc/elements/1.1/
748842
http://lod.bco-dmo.org/id/dataset/748842
2013-06-13 - 2013-07-26
2013-06-13
2013-06-13
---13
163
--06
2013
2013-07-26
2013-07-26
---26
206
--07
2013
OSPREY
http://www.opengis.net/def/crs/OGC/1.3/CRS84
<http://www.opengis.net/def/crs/OGC/1.3/CRS84> POLYGON((-76.62355 34.06503, -76.37371 34.06503, -76.37371 34.06503, -76.37371 34.70648, -76.62355 34.70648, -76.62355 34.06503))
-76.62355
34.06503
-76.37371
34.70648
34.385755000021
-76.498630000050
VIEW TABLE
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_748842.htmlTable
text/html
SUBSET DATA
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_748842.html
text/html
CSV
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_748842.csv
text/csv
TSV
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_748842.tsv
text/tsv
GeoJSON
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_748842.geoJson
application/geo+json
MATLAB
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_748842.mat
text/x-matlab
netCDF
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_748842.nc
application/x-netcdf