BCO-DMO ERDDAP
Accessing BCO-DMO data

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Dataset Title:	[Time to development larval purple urchins] - Time to developmental stage across temperature and food experiments in the larval purple sea urchin, Strongylocentrotus purpuratus (Collaborative Research: The effects of marine heatwaves on reproduction, larval transport and recruitment in sea urchin metapopulations)
Institution:	BCO-DMO (Dataset ID: bcodmo_dataset_963415_v1)
Information:	Summary \| License \| Metadata \| Background \| Data Access Form \| Files

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Constraints	Optional Constraint #1		Optional Constraint #2

Server-side Functions

distinct()

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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 {
  temp {
    Int32 actual_range 10, 20;
    String long_name "Temp";
    String units "degrees Celsius";
  }
  food {
    Int32 actual_range 500, 10000;
    String long_name "Food";
    String units "cells per mL";
  }
  days_settled {
    Int32 actual_range 21, 61;
    String long_name "Days_settled";
    String units "days";
  }
  days_prism {
    Int32 actual_range 4, 4;
    String long_name "Days_prism";
    String units "days";
  }
  days_fourarm {
    Int32 actual_range 9, 15;
    String long_name "Days_fourarm";
    String units "days";
  }
  days_sixarm {
    Int32 actual_range 9, 15;
    String long_name "Days_sixarm";
    String units "days";
  }
  days_eightarm {
    Int32 actual_range 15, 15;
    String long_name "Days_eightarm";
    String units "days";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_url "https://www.bco-dmo.org/";
    String doi "10.26008/1912/bco-dmo.963415.1";
    String history 
"2025-08-03T04:42:40Z (local files)
2025-08-03T04:42:40Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_963415_v1.das";
    String infoUrl "https://osprey.bco-dmo.org/dataset/963415";
    String institution "BCO-DMO";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String sourceUrl "(local files)";
    String summary 
"Trends in development time and time to metamorphic competency across temperature and food availability treatments were measured in Strongylocentrotus purpuratus larvae. Effects of temperature and food availability were tested using a 6 x 4 factorial experimental design with six temperature treatments (10, 12, 14, 16, 18, 20°C) and four concentrations of Rhodomonas sp. microalgae (500, 2500, 5000, 10,000 cells mL-1) for a total of 24 treatment combinations. Developmental stage was determined in>50% individuals were of a certainstage and metamorphic competency was determined when >50% of larvae exhibited tube feet and adhered to the bottle. Time to metamorphic competency decreased exponentially with temperature with larvae at 10°C reaching competency in 61 days, larvae at 12ºC in 33 days, larvae at 14ºC in 29 days, larvae at 16ºC in 25 days, larvae at 18ºC in 22 days, and larvae at 20ºC in 21 days.
This dataset includes the treatment combinations and days to metamorphic competency for each treatment combination.";
    String title "[Time to development larval purple urchins] - Time to developmental stage across temperature and food experiments in the larval purple sea urchin, Strongylocentrotus purpuratus (Collaborative Research: The effects of marine heatwaves on reproduction, larval transport and recruitment in sea urchin metapopulations)";
  }
}

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.

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