Make A Graph

Dataset Title:	Bottom trawl survey: station data
Institution:	Rutgers University (Dataset ID: length_sex_data_20250815)
Information:	Summary \| License \| Metadata \| Background \| Subset \| Data Access Form \| Files

To work correctly, this web page requires that JavaScript be enabled in your browser. Please:
1) Enable JavaScript in your browser:
      • Chrome: "Settings : Advanced : Privacy and security : Site Settings : JavaScript"
      • Firefox: (it should be always on!)"
      • Opera: "Settings : Websites : JavaScript"
      • Safari: "Safari : Preferences : Security : Enable JavaScript"
2) Reload this web page.

Graph Type:

X Axis:

Y Axis:

Color:

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.

Graph Settings

Marker Type:

Size:

Color:

Color Bar:

Continuity:

Scale:

Minimum:

Maximum:

N Sections:

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:
(Documentation / Bypass this form

)

[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:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  row {
    Int32 _FillValue 2147483647;
    Int32 actual_range 1, 15134;
    String ioos_category "Unknown";
    String long_name "Row";
  }
  tsn {
    Int32 _FillValue -9999;
    Int32 actual_range 72878, 615846;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String description "Integrated Taxonomic Information System (ITIS) taxonomic serial number (TSN) identifier downloaded 20250610";
    String ioos_category "Statistics";
    String long_name "Itis Tsn Number";
  }
  ind_id {
    Int32 _FillValue -9999;
    Int32 actual_range 1, 37;
    String description "Unique individual measured and sexed";
    String ioos_category "Identifier";
    String long_name "Individual Organism Identifier";
    String units "identifier";
  }
  length {
    Int32 _FillValue -9999;
    Int32 actual_range 1, 4557;
    String description "Size measurement for up to 20 individuals per taxon per trawl, where the metric used in denoted in the variable field 'metric'";
    String ioos_category "Unknown";
    String long_name "indiviudal_size_measurement";
    String units "mm";
  }
  stationID {
    String description "unique trawl idenfier by date and survey cumulative trawl number: YYYYMMDD-NN";
    String ioos_category "Identifier";
    String long_name "trawl_station_ID";
    String units "identifier";
  }
  survey {
    String description "survey identifier by season and year";
    String ioos_category "Time";
    String long_name "Trawl Survey";
    String units "season year";
  }
  common {
    String description "common name each taxon to nearest level";
    String ioos_category "Taxonomy";
    String long_name "Taxon Common Name";
  }
  sciname {
    String description "scientific name each taxon to nearest level";
    String ioos_category "Taxonomy";
    String long_name "Taxon Scientific Name";
  }
  metric {
    String description "Denotes method used to measure individuals in trawl: SL=standard length; TL=total length; FL=fork length; CW=carapace width.";
    String ioos_category "Unknown";
    String long_name "Size Measurement Method";
  }
  sex {
    String description "Sex for individual: m=male; f=female; u=unidentified";
    String ioos_category "Biology";
    String long_name "Individual Sex";
  }
 }
  NC_GLOBAL {
    String acknowledgement "Funding provided by Bureau of Ocean Energy Management";
    String cdm_data_type "Other";
    String contributor_name "Thomas Grothues; Doug  Zemeckis; Josh Kohut; Deena Hansen; Stephen Potts";
    String contributor_role "Principal Investigator; Co-Principal Investigator; Co-Principal Investigator; BOEM Coordinator; Postdoctoral fellow";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String creator_email "stephen.potts@marine.rutgers.edu";
    String creator_institution "Rutgers University";
    String creator_name "Stephen Potts";
    String creator_type "person";
    String creator_url "https://marine.rutgers.edu/main/";
    String geospatial_bounds_crs "EPSG:3424";
    String history 
"2025-10-14T07:34:33Z (local files)
2025-10-14T07:34:33Z https://rowlrs-data.marine.rutgers.edu/tabledap/length_sex_data_20250815.das";
    String infoUrl "https://rowlrs.marine.rutgers.edu/";
    String institution "Rutgers University";
    String keywords "biology, bottom, common, data, identifier, ind_id, individual, indiviudal, itis, length, measurement, method, metric, name, number, organism, row, rutgers, scientific, sciname, sex, size, station, stationID, statistics, survey, taxon, taxonomy, time, trawl, tsn, university";
    String license "see Data Use Agreement";
    String project "NY Bight Fish, Fishers and Sand Features: Phase 2";
    String project_institution "Rutgers University; Bureau of Ocean Energy Management (BOEM)";
    String publisher_email "ecosystemdata@marine.rutgers.edu";
    String publisher_institution "Rutgers University";
    String publisher_name "Rutgers Marine Ecosystem Data Team";
    String publisher_type "group";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "stationID, survey, common, sciname, metric, sex";
    String summary "Trawl survey station data for bottom fish and invertebrates at an offshore sand borrow site in offshore New Jersey. 5 seasonal surveys were conducted over 3 years, with 4 days of collections each of within survey. Trawls were randomized over 7 cluster areas.";
    String title "Bottom trawl survey: station data";
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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.

ERDDAP, Version 2.28.1
Disclaimers | Privacy Policy | Contact