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Dataset Title:  UCSD SIO Mesopelagic Fish — observations Subscribe RSS
Institution:  CalCOFI   (Dataset ID: sio_mesopelagic-fish)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form
 
Graph Type:  ?
X Axis: 
Y Axis: 
Color: 
-1+1
 
Constraints ? Optional
Constraint #1 ? 		Optional
Constraint #2 ?
       
       
       
       
       
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")
 
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   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   
 
(Please be patient. It may take a while to get the data.)
 
Optional:
Then set the File Type: (File Type information)
and
or view the URL:
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    Click on the map to specify a new center point. ?
Zoom: 
Time range:           -   +  
[The graph you specified. Please be patient.]

 

Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  sample_key {
    String ioos_category "Identifier";
    String long_name "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";
  }
  sample_type {
    String ioos_category "Other";
    String long_name "Sample type";
  }
  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";
  }
  taxon_key {
    String ioos_category "Identifier";
    String long_name "Taxon key";
  }
  scientific_name {
    String ioos_category "Other";
    String long_name "Scientific name";
  }
  life_stage {
    String ioos_category "Other";
    String long_name "Life stage";
  }
  measurement_type {
    String ioos_category "Other";
    String long_name "Measurement type";
  }
  measurement_value {
    String ioos_category "Other";
    String long_name "Measurement value";
  }
  measurement_qual {
    String ioos_category "Other";
    String long_name "Measurement qual";
  }
 }
  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 "sio_mesopelagic-fish";
    String db_release "v2026.08.08";
    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 
"2026-08-11T07:26:52Z (source database)
2026-08-11T07:26:52Z http://localhost:8090/tabledap/sio_mesopelagic-fish.das";
    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, measurement_type";
    String summary 
"Species-resolved mesopelagic fish counts (90 named species + 1 unidentified-fish catch-all) from MOHT (Matsuda-Oozeki-Hu Trawl) micronekton net tows, 7 CalCOFI cruises 2010-2012, all on RV New Horizon (NODC 32NM). Larval-fish counts in the same source file are a separate table, not included here. One row per observation: a measurement of one quantity at one event, taxon and depth. `measurement_type` names the quantity and `measurement_value` holds it, so filter on measurement_type. Source: CalCOFI integrated database release v2026.08.08. Citation: Koslow, J. Anthony (2016). CalCOFI Trawl Data. In California Cooperative Oceanic Fisheries Investigations (CalCOFI): Acoustic and Trawl Data. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0BZ64DH
.";
    String title "UCSD SIO Mesopelagic Fish — observations";
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

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.


 
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