http://lod.bco-dmo.org/id/dataset/701726
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
2017-05-31
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Tethering experiments on introduced crab conducted in several bays along the Central California coast in 2015
2017-06-15
publication
2017-06-15
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-01-14
publication
https://doi.org/10.1575/1912/bco-dmo.701726.1
Edwin Grosholz
University of California-Davis
principalInvestigator
Catherine de Rivera
Portland State University
principalInvestigator
Gregory E. Ruiz
Portland State University
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: Grosholz, E., de Rivera, C., Ruiz, G. (2017) Tethering experiments on introduced crab conducted in several bays along the Central California coast in 2015. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2017-06-15 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.701726.1 [access date]
Tethering data for introduced crab for 2015 Dataset Description: <p>Tethering data for introduced crab for 2015. Experiments were conducted in several bays along Central California coast,&nbsp;shallow subtidal (&lt;3 m depth).</p> Methods and Sampling: <p>We conducted tethering experiments in several northern California bays: Bodega Harbor, Tomales Bay, Bolinas Lagoon, and Seadrift Lagoon. All sites were accessed by foot via shore entry.&nbsp;At each of four sites within each bay, we placed 10 small European green crabs (collected locally) in parallel arrays near the 0.0 tide level. Tethers were retrieved 24 hours later data and scored for presence/absence of crab including missing appendages and or condition of remaining tether line.</p>
<p>See Turner et al. (2016) <em>Biological Invasions</em> 18: 533-548 for additional methodological details:<br />
Turner, B.C., de Rivera, C.E., Grosholz, E.D., &amp; Ruiz, G.M. 2016. Assessing population increase as a possible outcome to management of invasive species. Biological Invasions, 18(2), pp 533–548. doi:<a href="http://dx.doi.org/10.1007/s10530-015-1026-9" target="_blank">10.1007/s10530-015-1026-9</a></p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1514893 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1514893
completed
Edwin Grosholz
University of California-Davis
530-752-9151
Dept. of Environmental Science and Policy One Shields Ave.
Davis
CA
95616
USA
tedgrosholz@ucdavis.edu
pointOfContact
Catherine de Rivera
Portland State University
503-725-9798
Department of Environmental Science and Management PPO Box 751
Portland
OR
97207
USA
derivera@pdx.edu
pointOfContact
Gregory E. Ruiz
Portland State University
443-482-2227
P.O. Box 28 647 Contees Wharf Road
Edgewater
Maryland
21037-0028
USA
ruizg@si.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
bay
site
lat
lon
date_collected
size
sex
outcome
theme
None, User defined
site
latitude
longitude
date
width
sex
No BCO-DMO term
featureType
BCO-DMO Standard Parameters
Grosholz
service
Deployment Activity
Multiple bays along the Central California coast, shallow subtidal (<3 m depth)
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.
RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator
https://osprey.bco-dmo.org/project/699765
RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator
<p>The usual expectation is that when populations of plants and animals experience repeated losses to predators or human harvest, they would decline over time. If instead these populations rebound to numbers exceeding their initial levels, this would seem counter-intuitive or even paradoxical. However, for several decades mathematical models of population processes have shown that this unexpected response, formally known as overcompensation, is not only possible, but even expected under some circumstances. In what may be the first example of overcompensation in a marine system, a dramatic increase in a population of the non-native European green crab was recently observed following an intensive removal program. This RAPID project will use field surveys and laboratory experiments to verify that this population explosion results from overcompensation. Data will be fed into population models to understand to what degree populations processes such as cannibalism by adult crabs on juvenile crabs and changes in maturity rate of reproductive females are contributing to or modifying overcompensation. The work will provide important insights into the fundamental population dynamics that can produce overcompensation in both natural and managed populations. Broader Impacts include mentoring graduate trainees and undergraduate interns in the design and execution of field experiments as well as in laboratory culture and feeding experiments. The project will also involve a network of citizen scientists who are involved with restoration activities in this region and results will be posted on the European Green Crab Project website.</p>
<p>This project aims to establish the first example of overcompensation in marine systems. Overcompensation refers to the paradoxical process where reduction of a population due to natural or human causes results in a greater equilibrium population than before the reduction. A population explosion of green crabs has been recently documented in a coastal lagoon and there are strong indications that this may be the result of overcompensation. Accelerated maturation of females, which can accompany and modify the expression of overcompensation has been observed. This RAPID project will collect field data from this unusual recruitment class and conduct targeted mesocosm experiments. These will include population surveys and mark-recapture studies to measure demographic rates across study sites. Laboratory mesocosm studies using this recruitment class will determine size specific mortality. Outcomes will be used in population dynamics models to determine to what degree overcompensation has created this dramatic population increase. The project will seek answers to the following questions: 1) what are the rates of cannibalism by adult green crabs and large juveniles on different sizes of juvenile green crabs, 2) what are the consequences of smaller size at first reproduction for population dynamics and for overcompensation and 3) how quickly will the green crab population return to the levels observed prior to the eradication program five years earlier?</p>
Invasive_predator_harvest
largerWorkCitation
project
eng; USA
biota
oceans
Multiple bays along the Central California coast, shallow subtidal (<3 m depth)
-123.058725
-122.653096
37.906503
38.316968
2015-08-11
2015-09-17
Europe
0
BCO-DMO catalogue of parameters from Tethering experiments on introduced crab conducted in several bays along the Central California coast in 2015
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/701735.rdf
Name: bay
Units: unitless
Description: <p>Name of bay</p>
http://lod.bco-dmo.org/id/dataset-parameter/701736.rdf
Name: site
Units: unitless
Description: <p>Name/identifier of the site within the bay</p>
http://lod.bco-dmo.org/id/dataset-parameter/701737.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude of the site</p>
http://lod.bco-dmo.org/id/dataset-parameter/701738.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude of the site</p>
http://lod.bco-dmo.org/id/dataset-parameter/701739.rdf
Name: date_collected
Units: unitless
Description: <p>Date retrieved (yyyy-mm-dd)</p>
http://lod.bco-dmo.org/id/dataset-parameter/701740.rdf
Name: size
Units: millimeters (mm)
Description: <p>Carapace width in millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/701741.rdf
Name: sex
Units: unitless
Description: <p>Sex: M=male, F=female, P=parasitized</p>
http://lod.bco-dmo.org/id/dataset-parameter/701742.rdf
Name: outcome
Units: unitless
Description: <p>Condition of crab and tether after retrieval: Undamaged = intact, no evidence of predation; ML = missing legs; Predation = evidence of predation; Escape = evidence that tether failed; Loop = tether loop still intact.</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
9679
https://darchive.mblwhoilibrary.org/bitstream/1912/25157/1/dataset-701726_crab-tethering__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.701726.1
download
onLine
dataset
<p>We conducted tethering experiments in several northern California bays: Bodega Harbor, Tomales Bay, Bolinas Lagoon, and Seadrift Lagoon. All sites were accessed by foot via shore entry.&nbsp;At each of four sites within each bay, we placed 10 small European green crabs (collected locally) in parallel arrays near the 0.0 tide level. Tethers were retrieved 24 hours later data and scored for presence/absence of crab including missing appendages and or condition of remaining tether line.</p>
<p>See Turner et al. (2016) <em>Biological Invasions</em> 18: 533-548 for additional methodological details:<br />
Turner, B.C., de Rivera, C.E., Grosholz, E.D., &amp; Ruiz, G.M. 2016. Assessing population increase as a possible outcome to management of invasive species. Biological Invasions, 18(2), pp 533–548. doi:<a href="http://dx.doi.org/10.1007/s10530-015-1026-9" target="_blank">10.1007/s10530-015-1026-9</a></p>
Specified by the Principal Investigator(s)
<p>Data were entered and checked in MS Excel spreadsheets. Statistical analyses were&nbsp;run with either (R Development Core Team) or SAS (Statistical Analysis Systems).</p>
<p>Note that all Seadrift sites are very close together and thus one lat/lon pair are used to represent all sites within Seadrift.</p>
<p>BCO-DMO Processing:<br />
- re-formatted date to yyyy-mm-dd;<br />
- modified parameter names to conform with BCO-DMO naming conventions (removed units, changed to lowercase from mixed case);<br />
- created lat and lon columns and added values from metadata page;&nbsp;<br />
- replaced commas with semi-colons and spaces with underscores;<br />
- replaced blanks (missing data) with 'nd'.</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: Grosholz
Grosholz
Central_CA_Coast
shoreside
Grosholz
Edwin Grosholz
University of California-Davis
Central_CA_Coast
shoreside