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Dataset Title:	Benthic habitat correlates of juvenile fish: large inverts & fish, from F/V North Star NEC-MD2001-2 in the Gulf of Maine from 2002-2003 (NEC-CoopRes project)
Institution:	BCO-DMO (Dataset ID: bcodmo_dataset_3005)
Range:	longitude = -70.8288 to -69.998°E, latitude = 43.0248 to 43.4885°N, depth = 22.0 to 141.0m
Information:	Summary \| License \| ISO 19115 \| Metadata \| Background \| Data Access Form \| Files

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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 {
  year {
    Int16 _FillValue 32767;
    Int16 actual_range 2002, 2003;
    String bcodmo_name "year";
    String description "year, e.g. 2009.";
    String long_name "Year";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/";
  }
  site {
    String bcodmo_name "unknown";
    String description "geographic location of sampling";
    String long_name "Site";
  }
  inst {
    String bcodmo_name "instrument";
    String description "instrument used to collect or process data";
    String long_name "Inst";
  }
  transect_num {
    String bcodmo_name "transect";
    String description "transect number, as when a ship crosses an area repeatedly.";
    String long_name "Transect Num";
  }
  yrday_local {
    Int16 _FillValue 32767;
    Int16 actual_range 159, 303;
    String bcodmo_name "yrday_local";
    String description "local day and decimal time, as 326.5 for the 326th day, or November 22 at 1200 hours (noon)";
    String long_name "Yrday Local";
  }
  month_local {
    String bcodmo_name "month_local";
    String description "month of year, local time";
    String long_name "Month Local";
  }
  day_local {
    String bcodmo_name "day_local";
    String description "numerical day of month, local time";
    String long_name "Day Local";
  }
  time_start {
    String bcodmo_name "time_start_local";
    String description "starting time of observation, local time, 24 hour clock";
    String long_name "Time Start";
  }
  time_end {
    String bcodmo_name "time_end_local";
    String description "ending time of observation, local time , 24 hour clock";
    String long_name "Time End";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 43.0248, 43.4885;
    String axis "Y";
    String bcodmo_name "lat_start";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "latitude at starting time of measurement (west is negative)";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String source_name "lat_start";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -70.8288, -69.998;
    String axis "X";
    String bcodmo_name "lon_start";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "longitude at starting time of measurement (west is negative)";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String source_name "lon_start";
    String standard_name "longitude";
    String units "degrees_east";
  }
  lat_end {
    Float32 _FillValue NaN;
    Float32 actual_range 43.025, 43.4851;
    String bcodmo_name "lat_end";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "latitude at end time of measurement (south in negative)";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "decimal degrees";
  }
  lon_end {
    Float32 _FillValue NaN;
    Float32 actual_range -70.8298, -70.0088;
    String bcodmo_name "lon_end";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "longitude at end time of measurement (west is negative)";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "decimal degrees";
  }
  depth_start {
    String bcodmo_name "depth";
    String description "starting sample depth";
    String long_name "Depth";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
    String standard_name "depth";
    String units "meters";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 22.0, 141.0;
    String axis "Z";
    String bcodmo_name "depth";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "ending sample depth";
    String ioos_category "Location";
    String long_name "Depth";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  taxon {
    String bcodmo_name "taxon";
    String description "taxonomic group or entity. This may be a family, class, genus, species, common name, etc.";
    String long_name "Taxon";
  }
  number {
    Int16 _FillValue 32767;
    Int16 actual_range 1, 1281;
    String bcodmo_name "number";
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String description "number of organisms counted/observed";
    String long_name "Number";
  }
  length {
    String bcodmo_name "length";
    String description "length of specimen";
    String long_name "Length";
    String units "millimeters";
  }
  comments {
    String bcodmo_name "comment";
    String description "free text comments, may only have meaning to submitting PI";
    String long_name "Comments";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description "\"\"";
    String awards_0_award_nid "55021";
    String awards_0_award_number "unknown NEC-CoopRes NEC";
    String awards_0_funder_name "NorthEast Consortium";
    String awards_0_funding_acronym "NEC";
    String awards_0_funding_source_nid "383";
    String cdm_data_type "Other";
    String comment 
"bigelow_bight_eco 
   PI: M. Dionne (Wells National Estuarine Research Reserve) 
   Benthic Habitat Correlates of Juvenile Fish Distribution 
     in the Bigelow Bight & Adjacent Estuaries 
   DMO note: data in year 'nd' is from 2002 (26 Jan, 2009)";
    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 "2010-08-17T16:51:53Z";
    String date_modified "2020-01-16T19:32:40Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.1575/1912/bco-dmo.3005.1";
    Float64 Easternmost_Easting -69.998;
    Float64 geospatial_lat_max 43.4885;
    Float64 geospatial_lat_min 43.0248;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -69.998;
    Float64 geospatial_lon_min -70.8288;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 141.0;
    Float64 geospatial_vertical_min 22.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-04-19T19:55:03Z (local files)
2024-04-19T19:55:03Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_3005.das";
    String infoUrl "https://www.bco-dmo.org/dataset/3005";
    String institution "BCO-DMO";
    String instruments_0_acronym "Gillnet";
    String instruments_0_dataset_instrument_nid "4755";
    String instruments_0_description "Gillnetting uses curtains of netting that are suspended by a system of floats and weights; they can be anchored to the sea floor or allowed to float at the surface. A gillnet catches fish by their gills because the twine of the netting is very thin, and either the fish does not see the net or the net is set so that it traps the fish.";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/65/";
    String instruments_0_instrument_name "Gillnet";
    String instruments_0_instrument_nid "465";
    String instruments_0_supplied_name "Gillnet";
    String instruments_1_acronym "Beam trawl";
    String instruments_1_dataset_instrument_description "2 meter beam trawl";
    String instruments_1_dataset_instrument_nid "4754";
    String instruments_1_description 
"A beam trawl consists of a cone-shaped body ending in a bag or codend, which retains the catch. In these trawls the horizontal opening of the net is provided by a beam, made of wood or metal, which is up to 12 m long. The vertical opening is provided by two hoop-like trawl shoes mostly made from steel. No hydrodynamic forces are needed to keep a beam trawl open.  The beam trawl is normally towed on outriggers, one trawl on each side. 
While fishing for flatfish the beam trawl is often equipped with tickler chains to disturb the fish from the seabed. For operations on very rough fishing grounds they can be equipped with chain matrices. Chain matrices are rigged between the beam and the groundrope and prevent boulders/stones from being caught by the trawl. Shrimp beam trawls  are not so heavy and have smaller mesh sizes. A bobbin of groundrope with rubber bobbins keeps the shrimp beam trawl in contact with the bottom and gives flatfish the opportunity to escape.
Close bottom contact is necessary for successful operation. To avoid bycatch of most juvenile fishes selectivity devices are assembled (sieve nets, sorting grids, escape holes). While targeting flatfish the beam trawls are towed up to seven knots, therefore the gear is very heavy; the largest gears weighs up to 10 ton. The towing speed for shrimp is between 2.5 and 3 knots.
(from: http://www.fao.org/fishery/geartype/305/en)";
    String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/24/";
    String instruments_1_instrument_name "Beam Trawl";
    String instruments_1_instrument_nid "521";
    String instruments_1_supplied_name "Trawl";
    String instruments_2_acronym "Flounder Trap";
    String instruments_2_dataset_instrument_description "fish trap";
    String instruments_2_dataset_instrument_nid "4756";
    String instruments_2_description "Based on an historical design used previously in the Gulf of Maine to target Winter Flounder, this experimental trap is a converted lobster trap fitted with a standard crab hoop acting as one long entrance.  The crab hoop measures 8 inches across and 2 1/2 inches in height and it was hoped that this hoop would allow flatfish, crabs and some finfish to enter while excluding most lobsters. These traps were built by Kelo Pinkham and Jim Lowe, from Boothbay, Maine. Collapsible square fish traps are also available commercially for eel, crawfish and flounder.";
    String instruments_2_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/63/";
    String instruments_2_instrument_name "Flounder Trap";
    String instruments_2_instrument_nid "524";
    String instruments_2_supplied_name "Flounder Trap";
    String keywords "bco, bco-dmo, biological, chemical, comments, data, dataset, day, day_local, depth, depth_end, depth_start, dmo, end, erddap, inst, lat_end, latitude, length, local, lon_end, longitude, management, month, month_local, num, number, oceanography, office, preliminary, site, start, taxon, time, time_end, time_start, transect, transect_num, year, yrday, yrday_local";
    String license "https://www.bco-dmo.org/dataset/3005/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/3005";
    Float64 Northernmost_Northing 43.4885;
    String param_mapping "{'3005': {'depth_end': 'master - depth', 'lon_start': 'flag - longitude', 'lat_start': 'flag - latitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/3005/parameters";
    String people_0_affiliation "Wells National Estuarine Research Reserve";
    String people_0_person_name "Michele Dionne";
    String people_0_person_nid "50899";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Woods Hole Oceanographic Institution";
    String people_1_affiliation_acronym "WHOI BCO-DMO";
    String people_1_person_name "Nancy Copley";
    String people_1_person_nid "50396";
    String people_1_role "BCO-DMO Data Manager";
    String people_1_role_type "related";
    String project "NEC-CoopRes";
    String projects_0_acronym "NEC-CoopRes";
    String projects_0_description 
"The Northeast Consortium encourages and funds cooperative research and monitoring projects in the Gulf of Maine and Georges Bank that have effective, equal partnerships among fishermen, scientists, educators, and marine resource managers.
The Northeast Consortium seeks to fund projects that will be conducted in a responsible manner. Cooperative research projects are designed to minimize any negative impacts to ecosystems or marine organisms, and be consistent with accepted ethical research practices, including the use of animals and human subjects in research, scrutiny of research protocols by an institutional board of review, etc.";
    String projects_0_geolocation "Georges Bank, Gulf of Maine";
    String projects_0_name "Northeast Consortium: Cooperative Research";
    String projects_0_project_nid "2045";
    String projects_0_project_website "http://northeastconsortium.org/";
    String projects_0_start_date "1999-01";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 43.0248;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "Benthic habitat correlates of juvenile fish: large inverts & fish, from F/V North Star NEC-MD2001-2 in the Gulf of Maine from 2002-2003.";
    String title "Benthic habitat correlates of juvenile fish: large inverts & fish, from F/V North Star NEC-MD2001-2 in the Gulf of Maine from 2002-2003 (NEC-CoopRes project)";
    String version "1";
    Float64 Westernmost_Easting -70.8288;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

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.