<div><p>We conducted monthly trappings of invasive European green crabs to gather demographic data from several bays in northern California: Bodega Harbor, Tomales Bay, Bolinas Lagoon, San Francisco Bay, and Elkhorn Slough. All sites were accessed by foot via shore entry. At each of four sites within each bay, we placed 5 baited traps (folding Fukui fish traps) and 5 baited minnow traps in shallow intertidal areas. Traps arrays were set with fish and minnow traps alternating and with each 20 m apart. Traps were retrieved 24 hours later and traps were rebaited and collected again the following day. Trapping was continued for three consecutive days with traps removed on the final day. Each day, data for crab species, size, sex, reproductive condition, and injuries were collected for all crabs in the field. Following data collection, all crabs were returned to the lab, and frozen overnight prior to disposal. </p>
<p>See Turner et al. (2016) for additional methodological details.</p></div>
Demographic data for introduced crab from multiple bays 2009-2016
<div><p>Demographic data for introduced crab from multiple bays along the Central California coast, shallow subtidal (<3 m depth), from 2009-2016.</p></div>
Cross Bay Demographics
<div><p>Data were entered and checked in MS Excel spreadsheets. Statistical analyses were run with either (R Development Core Team) or SAS (Statistical Analysis Systems).</p>
<p>BCO-DMO Processing:<br />
v1 (2017-06-15):<br />
- re-formatted date to yyyy-mm-dd;<br />
- modified parameter names to conform with BCO-DMO naming conventions (changed to lowercase from mixed case);<br />
- created lat and lon columns and added values from metadata page; <br />
- created column for full species names and added names corresponding to each code from metadata page; changed 'species' column provided to 'species_code';<br />
- replaced blanks (missing data) with 'nd';<br />
- replaced commas with semi-colons;<br />
- replaced spaces with underscores.</p>
<p>v2 (2021-03-16):<br />
- replaced version 1 of dataset with version 2, which includes a longer time series of data;<br />
- replaced commas with semi-colons in the injury column;<br />
- removed apostrophes from the site column;<br />
- converted all dates to YYYY-MM-DD format.</p></div>
701751
Cross Bay Demographics
2017-05-31T16:37:37-04:00
2017-05-31T16:37:37-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:701751
Demographic data for introduced crab from multiple bays along the Central California coast in 2009-2016
Demographic data for introduced crab from multiple bays along the Central California coast, shallow subtidal (<3 m depth), from 2009-2016.
false
Grosholz, E., de Rivera, C., Ruiz, G. (2021) Demographic data for introduced crab from multiple bays along the Central California coast in 2009-2016. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2) Version Date 2021-03-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.701751.2 [access date]
true
2
10.26008/1912/bco-dmo.701751.2
false
2021-03-16
Datapackage.json
Frictionless Data Package
https://www.bco-dmo.org/dataset/701751/datapackage.json
application/vnd.datapackage+json
PDF
https://www.bco-dmo.org/dataset/701751/Dataset_description.pdf
application/pdf
ISO 19115-2 (NOAA Profile)
https://www.bco-dmo.org/dataset/701751/iso
application/xml
http://www.isotc211.org/2005/gmd-noaa
Dublin Core
https://www.bco-dmo.org/dataset/701751/dublin-core
application/xml
http://purl.org/dc/elements/1.1/
701751
http://lod.bco-dmo.org/id/dataset/701751
2009-07-07 - 2016-09-19
2009-07-07
2009-07-07
---07
187
--07
2009
2016-09-19
2016-09-19
---19
262
--09
2016
OSPREY
http://www.opengis.net/def/crs/OGC/1.3/CRS84
<http://www.opengis.net/def/crs/OGC/1.3/CRS84> POLYGON((-123.058725 36.82397, -121.73843 36.82397, -121.73843 36.82397, -121.73843 38.316968, -123.058725 38.316968, -123.058725 36.82397))
-123.058725
36.82397
-121.73843
38.316968
37.570469000001
-122.398577500000