Accessing BCO-DMO data
Brought to you by BCO-DMO
|
|
BCO-DMO ERDDAP
Accessing BCO-DMO data |
log in
Brought to you by BCO-DMO |
| Dataset Title: | [Crab Tethering] - Tethering experiments on introduced crab conducted in several bays along the Central California coast in 2015 (RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator) 
|
| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_701726) |
| Range: | longitude = -123.05872 to -122.6531°E, latitude = 37.9065 to 38.316967°N |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Data Access Form
| Files
|
|
Click on the map to specify a new center point.
Zoom: ![[The graph you specified. Please be patient.]](https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_701726.png?longitude,latitude,size&.draw=markers&.marker=5%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff)
|
Attributes {
s {
bay {
String bcodmo_name "site";
String description "Name of bay";
String long_name "Bay";
String units "unitless";
}
site {
String bcodmo_name "site";
String description "Name/identifier of the site within the bay";
String long_name "Site";
String units "unitless";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 37.906503, 38.316968;
String axis "Y";
String bcodmo_name "latitude";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "Latitude of the site";
String ioos_category "Location";
String long_name "Latitude";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue NaN;
Float64 actual_range -123.058725, -122.653096;
String axis "X";
String bcodmo_name "longitude";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "Longitude of the site";
String ioos_category "Location";
String long_name "Longitude";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
String standard_name "longitude";
String units "degrees_east";
}
date_collected {
String bcodmo_name "date";
String description "Date retrieved (yyyy-mm-dd)";
String long_name "Date Collected";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
String units "unitless";
}
size {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 11, 41;
String bcodmo_name "width";
String description "Carapace width in millimeters";
String long_name "Size";
String units "millimeters (mm)";
}
sex {
String bcodmo_name "sex";
String description "Sex: M=male, F=female, P=parasitized";
String long_name "Sex";
String units "unitless";
}
outcome {
String bcodmo_name "unknown";
String description "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.";
String long_name "Outcome";
String units "unitless";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
String acquisition_description
"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.\\u00a0At 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.
See Turner et al. (2016) Biological Invasions 18: 533-548 for additional
methodological details:
Turner, B.C., de Rivera, C.E., Grosholz, E.D., & Ruiz, G.M. 2016. Assessing
population increase as a possible outcome to management of invasive species.
Biological Invasions, 18(2), pp 533\\u2013548.
doi:[10.1007/s10530-015-1026-9](\\\\\"https://dx.doi.org/10.1007/s10530-015-1026-9\\\\\")";
String awards_0_award_nid "699764";
String awards_0_award_number "OCE-1514893";
String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1514893";
String awards_0_funder_name "NSF Division of Ocean Sciences";
String awards_0_funding_acronym "NSF OCE";
String awards_0_funding_source_nid "355";
String awards_0_program_manager "David L. Garrison";
String awards_0_program_manager_nid "50534";
String cdm_data_type "Other";
String comment
"Tethering data for introduced crab for 2015
PI: Edwin Grosholz (UC Davis)
Co-PI: Catherine de Rivera & Gregory Ruiz (Portland State University)
Version: 15 June 2017
Note that all Seadrift sites are very close together and thus one lat/lon pair are used to represent all sites within Seadrift.";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_email "info@bco-dmo.org";
String creator_name "BCO-DMO";
String creator_type "institution";
String creator_url "https://www.bco-dmo.org/";
String data_source "extract_data_as_tsv version 2.3 19 Dec 2019";
String date_created "2017-05-31T16:08:41Z";
String date_modified "2020-01-14T18:23:51Z";
String defaultDataQuery "&time<now";
String doi "10.1575/1912/bco-dmo.701726.1";
Float64 Easternmost_Easting -122.653096;
Float64 geospatial_lat_max 38.316968;
Float64 geospatial_lat_min 37.906503;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -122.653096;
Float64 geospatial_lon_min -123.058725;
String geospatial_lon_units "degrees_east";
String history
"2024-11-08T06:15:02Z (local files)
2024-11-08T06:15:02Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_701726.das";
String infoUrl "https://www.bco-dmo.org/dataset/701726";
String institution "BCO-DMO";
String keywords "bay, bco, bco-dmo, biological, chemical, collected, data, dataset, date, date_collected, dmo, erddap, latitude, longitude, management, oceanography, office, outcome, preliminary, sex, site, size";
String license "https://www.bco-dmo.org/dataset/701726/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/701726";
Float64 Northernmost_Northing 38.316968;
String param_mapping "{'701726': {'lat': 'master - latitude', 'lon': 'master - longitude'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/701726/parameters";
String people_0_affiliation "University of California-Davis";
String people_0_affiliation_acronym "UC Davis";
String people_0_person_name "Edwin Grosholz";
String people_0_person_nid "699768";
String people_0_role "Principal Investigator";
String people_0_role_type "originator";
String people_1_affiliation "Portland State University";
String people_1_affiliation_acronym "PSU";
String people_1_person_name "Catherine de Rivera";
String people_1_person_nid "699771";
String people_1_role "Co-Principal Investigator";
String people_1_role_type "originator";
String people_2_affiliation "Portland State University";
String people_2_affiliation_acronym "PSU";
String people_2_person_name "Gregory Ruiz";
String people_2_person_nid "471603";
String people_2_role "Co-Principal Investigator";
String people_2_role_type "originator";
String people_3_affiliation "Woods Hole Oceanographic Institution";
String people_3_affiliation_acronym "WHOI BCO-DMO";
String people_3_person_name "Shannon Rauch";
String people_3_person_nid "51498";
String people_3_role "BCO-DMO Data Manager";
String people_3_role_type "related";
String project "Invasive_predator_harvest";
String projects_0_acronym "Invasive_predator_harvest";
String projects_0_description
"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.
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?";
String projects_0_end_date "2016-11";
String projects_0_geolocation "Europe";
String projects_0_name "RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator";
String projects_0_project_nid "699765";
String projects_0_start_date "2014-12";
String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
String publisher_type "institution";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 37.906503;
String standard_name_vocabulary "CF Standard Name Table v55";
String summary "Tethering data for introduced crab for 2015. Experiments were conducted in several bays along Central California coast, shallow subtidal (<3 m depth).";
String title "[Crab Tethering] - Tethering experiments on introduced crab conducted in several bays along the Central California coast in 2015 (RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator)";
String version "1";
Float64 Westernmost_Easting -123.058725;
String xml_source "osprey2erddap.update_xml() v1.3";
}
}
Data Access Protocol (DAP) and its
selection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.