Easier access to scientific data
Brought to you by CalCOFI
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CalCOFI ERDDAP
Easier access to scientific data |
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Brought to you by CalCOFI |
| Dataset Title: | CDFW Dungeness Crab Megalopae — sampling events
|
| Institution: | CalCOFI (Dataset ID: cdfw_dungeness-crab_sample) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Make a graph
|
Attributes {
s {
sample_key {
String ioos_category "Identifier";
String long_name "Sample key";
}
sample_type {
String ioos_category "Other";
String long_name "Sample type";
}
parent_sample_key {
String ioos_category "Identifier";
String long_name "Parent sample key";
}
cruise_key {
String ioos_category "Identifier";
String long_name "Cruise key";
}
grid_key {
String ioos_category "Identifier";
String long_name "Grid key";
}
site_key {
String ioos_category "Identifier";
String long_name "Site key";
}
order_occ {
String ioos_category "Other";
String long_name "Order occ";
}
time {
String _CoordinateAxisType "Time";
String axis "T";
String ioos_category "Time";
String long_name "Time";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
String axis "Y";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
String axis "Z";
String ioos_category "Location";
String long_name "Depth";
String positive "down";
String standard_name "depth";
String units "m";
}
depth_max_m {
String ioos_category "Location";
String long_name "Depth max m";
}
tow_type {
String ioos_category "Other";
String long_name "Tow type";
}
prop_sorted {
String ioos_category "Other";
String long_name "Prop sorted";
String units "dimensionless";
}
settled_volume_ml {
String ioos_category "Other";
String long_name "Settled volume ml";
String units "ml";
}
}
NC_GLOBAL {
String cdm_data_type "Point";
String Conventions "COARDS, CF-1.10, ACDD-1.3";
String creator_name "CalCOFI";
String creator_url "https://calcofi.org";
String dataset_key "cdfw_dungeness-crab";
String db_release "v2026.08.14";
String featureType "Point";
String geospatial_lat_units "degrees_north";
String geospatial_lon_units "degrees_east";
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2026-08-23T23:52:56Z (source database)
2026-08-23T23:52:56Z http://localhost:8090/erddap/tabledap/cdfw_dungeness-crab_sample.html";
String infoUrl "https://calcofi.org";
String institution "CalCOFI";
String license "CC BY 4.0";
String references "https://calcofi.io/workflows/publish_to-erddap.html";
String sourceUrl "(source database)";
String standard_name_vocabulary "CF Standard Name Table v79";
String subsetVariables "cruise_key, site_key";
String summary
"Dungeness crab (Metacarcinus magister) megalopae and larval decapods picked from archived CalCOFI oblique-tow plankton samples, examined for the California Department of Fish and Wildlife. Two efforts: a 2008-2014 time series of 310 sorted samples (A. Klemmedson, 2015) yielding 24 M. magister megalopae from 14 samples, and a 1949-2009 master sorting log of 2,011 archived samples (E. Jones, as of 2012-02-15) recording which had been examined. Spring cruises, CalBOBL oblique tows, lines < 80 / stations < 90. Counts are occurrence in the examined aliquot, not standardized density. Sorting was performed at the SIO Pelagic Invertebrate Collection, where the removed megalopae are archived in vials. One row per sampling event, with event-level effort widened into its own columns. Use this for effort and station counting — summing effort over the observation table double-counts it. Source: CalCOFI integrated database release v2026.08.14. Citation: Rogers-Bennett, L.; Jones, E.; Klemmedson, A. (2026). CDFW Dungeness Crab Megalopae from archived CalCOFI plankton samples (1949-2014). California Department of Fish and Wildlife, published through CalCOFI / Scripps Institution of Oceanography.
.";
String title "CDFW Dungeness Crab Megalopae — sampling events";
}
}
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.