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Dataset Title:  Eastern Bering Sea (BASIS) Coastal Research on Juvenile Fish (Catch data) Subscribe RSS
Institution:  Alaska Fisheries Science Center   (Dataset ID: BASIS_FishCatch)
Range: longitude = -171.9933 to -159.9726°E, latitude = 54.987 to 66.9929°N
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | 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:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    String axis "T";
    String description "Date sampling occurred";
    String ioos_category "Time";
    String long_name "Haul Date";
    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";
    Float32 actual_range 54.987, 66.9929;
    String axis "Y";
    String description "Latitude at which gear entered the water";
    String ioos_category "Location";
    String long_name "GearIn Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -171.9933, -159.9726;
    String axis "X";
    String description "Longitude at which gear entered the water";
    String ioos_category "Location";
    String long_name "GearIn Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  station_id {
    String description "Unique identifier.  Concatenation of Year(4) VesselCode(2) CruiseNumber(2) and StationNumber(3)";
    String ioos_category "Other";
    String long_name "Station ID";
  }
  species_tsn {
    Int32 actual_range 1, 934083;
    String description "Taxonomic Serial Number for the fish species in the ITIS database";
    String ioos_category "Other";
    String long_name "Species TSN";
  }
  common_name {
    String ioos_category "Other";
    String long_name "Common Name";
  }
  scientific_name {
    String ioos_category "Other";
    String long_name "Scientific Name";
  }
  diet_flag {
    String description "Whether or not the species is referenced in diet data";
    String ioos_category "Other";
    String long_name "Diet Flag";
  }
  catch_flag {
    String description "Whether or not the species is referenced in catch data";
    String ioos_category "Other";
    String long_name "Catch Flag";
  }
  life_history_stage {
    String description "Two to four character code representing the life history stage of the fish (A0:Age 0 marine fish reserved for Gadidae, Anoplopomatidae, Sebastes spp., Arrowtooth Flounder; A1+:Age 1+ marine fish, reserved for Gadidae and Anoplopomatidae.; IM:Mixed Immature + Mature or Maturing reserved for Pacific Salmon species; J:Juvenile reserved for Pacific Salmon species in their 1st marine year.; L:Larval fish; U:Unspecified).";
    String ioos_category "Other";
    String long_name "Life History Stage Code";
  }
  sampling_method {
    String description "Code representing how lengths and weights were measured and/or should be calculated (MSC:Mixed species subsample catch; SC:Subsample catch: Total wt. measured, catch est.; TC:Total catch: total weight and total catch measured)";
    String ioos_category "Other";
    String long_name "Sampling Method Code";
  }
  total_catch_num {
    Float64 actual_range 0.0, 331608.0;
    String description "Counted or calculated total catch of the species/maturity in the trawl";
    String ioos_category "Other";
    String long_name "Total  CatchNum";
  }
  total_catch_wt {
    Float64 actual_range -999.0, 1.85e+7;
    String description "Counted or calculated total weight of the species/maturity in the trawl";
    String ioos_category "Other";
    String long_name "Total Catch Weight";
    String units "grams";
  }
  gear_code {
    String description "Code for gear used in trawl";
    String ioos_category "Other";
    String long_name "Gear Code";
  }
  event_code {
    String description "Code denoting order in which events took place on boat (default start at 3 for trawls unless otherwise stated in notes)";
    String ioos_category "Other";
    String long_name "Event Code";
  }
  large_marine_ecosystem {
    String description "Large Marine Ecosystem where sampling occurred";
    String ioos_category "Other";
    String long_name "Large Marine Ecosystem";
  }
  station_number {
    Int32 actual_range 0, 555;
    String description "Number indicating order in which stations were sampled";
    String ioos_category "Other";
    String long_name "Station Number";
  }
  year {
    Int32 actual_range 2002, 2019;
    String description "Year in which sampling occurred";
    String ioos_category "Other";
    String long_name "Year";
  }
  master_station {
    String description "Unique name of station location.  Either specific name assigned or latitude-longitude rounded to nearest 0.25 degrees";
    String ioos_category "Other";
    String long_name "Master Station";
  }
  tow_type {
    String description "Code for type of tow done in survey";
    String ioos_category "Other";
    String long_name "Tow Type";
  }
  gear_description {
    String description "Description of sampling gear used (oceanography/zooplankton only)";
    String ioos_category "Other";
    String long_name "Gear Description";
  }
  gearIn_time {
    String description "Time at which gear entered the water";
    String ioos_category "Other";
    String long_name "GearIn Time";
    String units "UTC";
  }
  eq_time {
    String description "Time at which gear reached equilibrium and is considered fishing (Surface/MidWater) or time at which gear reached max depth and began retrieval (oblique)";
    String ioos_category "Other";
    String long_name "Equilibrium Time";
  }
  eq_latitude {
    Float32 actual_range 51.3198, 72.5035;
    String description "Latitude at which gear reached equilibrium and is considered fishing (Surface/MidWater) or time at which gear reached max depth and began retrieval (oblique)";
    String ioos_category "Other";
    String long_name "Equilibrium Latitude";
    String units "degrees_north";
  }
  eq_longitude {
    Float32 actual_range -179.73, -134.8787;
    String description "Longitude at which gear reached equilibrium and is considered fishing (Surface/MidWater) or time at which gear reached max depth and began retrieval (oblique)";
    String ioos_category "Other";
    String long_name "Equilibrium Longitude";
    String units "degrees_east";
  }
  haulback_time {
    String description "Time at which gear retrieval begins (Surface/Midwater) or time at which gear exists water (oblique).";
    String ioos_category "Other";
    String long_name "Haulback Time";
  }
  haulback_latitude {
    Float32 actual_range 0.0, 72.5102;
    String description "Latitude at which gear retrieval begins (Surface/Midwater) or time at which gear exists water (oblique).";
    String ioos_category "Other";
    String long_name "Haulback Latitude";
    String units "degrees_north";
  }
  haulback_longitude {
    Float32 actual_range -179.7183, -134.8656;
    String description "Longitude at which gear retrieval begins (Surface/Midwater) or time at which gear exists water (oblique).";
    String ioos_category "Other";
    String long_name "Haulback Longitude";
    String units "degrees_east";
  }
  speed {
    Float32 actual_range 0.0, 5.9;
    String description "Speed of trawl";
    String ioos_category "Other";
    String long_name "Trawl Speed";
    String units "knots";
  }
  gear_depth {
    Float32 actual_range 0.0, 118.0;
    String description "Depth at which gear was trawled";
    String ioos_category "Other";
    String long_name "Gear Depth";
    String units "m";
  }
  bottom_depth {
    Float32 actual_range 0.0, 4800.0;
    String description "Depth of bottom at beginning of sampling.  Used as BottomDepth field in situations where only one depth is provided";
    String ioos_category "Other";
    String long_name "Bottom Depth";
    String units "m";
  }
  avg_net_horizontal_opening {
    Float32 actual_range 0.0, 82.48;
    String description "Average horizontal opening of trawl net";
    String ioos_category "Other";
    String long_name "Average Net Horizontal Opening";
    String units "m";
  }
  avg_net_vertical_opening {
    Float32 actual_range 0.0, 97.9;
    String description "Average vertical opening of trawl net";
    String ioos_category "Other";
    String long_name "Average Net Vertical Opening";
    String units "m";
  }
  wire_out {
    Float32 actual_range 16.74868, 1100.0;
    String description "Mean Wire Out for Surface/Midwater/Bottom Tows.  Max Wire Out for oblique tows";
    String ioos_category "Other";
    String long_name "Mean or Max Wire Out";
    String units "m";
  }
  course {
    String ioos_category "Other";
    String long_name "Course";
  }
  gear_out_time {
    String ioos_category "Other";
    String long_name "Gear Out Time";
  }
  gear_out_latitude {
    Float32 actual_range 0.0, 0.0;
    String ioos_category "Other";
    String long_name "Gear Out Latitude";
    String units "degrees_north";
  }
  gear_out_longitude {
    Float32 actual_range 0.0, 0.0;
    String ioos_category "Other";
    String long_name "Gear Out Longitude";
    String units "degrees_east";
  }
  vessel {
    String ioos_category "Other";
    String long_name "Vessel Code";
  }
  vessel_name {
    String ioos_category "Other";
    String long_name "Vessel Name";
  }
  race_ode {
    String description "RACE division species code";
    String ioos_category "Other";
    String long_name "RACE Code";
  }
  nodc_ode {
    String description "NODC code for the species";
    String ioos_category "Other";
    String long_name "NODC Code";
  }
  notes {
    String ioos_category "Other";
    String long_name "Notes";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "CF-1.6, ACDD-1.3, COARDS";
    String defaultGraphQuery "longitude,latitude,time&.draw=markers&.marker=5|5";
    Float64 Easternmost_Easting -159.9726;
    Float64 geospatial_lat_max 66.9929;
    Float64 geospatial_lat_min 54.987;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -159.9726;
    Float64 geospatial_lon_min -171.9933;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-07-13T14:17:35Z (local files)
2024-07-13T14:17:35Z https://erddap.psmfc.org/tabledap/BASIS_FishCatch.das";
    String infoUrl "https://www.fisheries.noaa.gov/alaska/population-assessments/bering-arctic-and-subarctic-integrated-survey";
    String institution "Alaska Fisheries Science Center";
    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.";
    Float64 Northernmost_Northing 66.9929;
    String publisher_email "jeanette.gann@noaa.gov";
    String publisher_name "Jeanette Gann";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 54.987;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "species_tsn,common_name,scientific_name,diet_flag,catch_flag,life_history_stage,sampling_method,gear_code,large_marine_ecosystem,vessel,vessel_name";
    String summary "Pacific salmon (Oncorhynchus spp.) runs in rivers that flow into the eastern Bering Sea have been inconsistent and at times very weak. Low returns of chinook (O. tshawytscha) and chum (O. keta) salmon to the Yukon River, Kuskokwim River, and Norton Sound areas of Alaska prompted the state of Alaska to restrict commercial and subsistence fisheries during 2000 and declare the region a fisheries disaster area. Weak salmon returns to these river systems follow several years of low sockeye (O. nerka) salmon returns to Bristol Bay, which was declared a fisheries disaster region during 1998 by both the State of Alaska and the U.S. Department of Commerce. Causes of the poor salmon returns to these river systems are not known however, the regional-scale decline of these stocks indicates that the marine environment may play a critical role. Ocean conditions, particularly in the first few months after the salmon leave fresh water, are known to significantly affect salmon survival (Holtby et al. 1990; Friedland et al. 1996; Beamish and Mahnken 2001). Mechanisms affecting marine survival of the eastern Bering Sea salmon stocks are unknown, principally due to the lack of marine life history information on western Alaska salmon. To improve understanding of the marine life-history stage of salmon in the Bering Sea, the North Pacific Anadromous Fish Commission (NPAFC) began an internationally coordinated research program on salmon in the Bering Sea called the Bering-Aleutian Salmon International Survey (BASIS) (NPAFC 2001). As part of BASIS, scientists from the National Marine Fisheries Service (NMFS), Ocean Carrying Capacity (OCC) program conducted a fall survey on the eastern Bering Sea shelf to provide key ecological data for eastern Bering Sea salmon stocks during their juvenile life-history stage. The goal of the OCC/BASIS salmon research cruise was to understand mechanisms underlying the effects of environment on distribution, migration, and growth of juvenile salmon on the eastern Bering Sea shelf. Primary objectives of BASIS include: 1) to determine the extent of offshore migrations of juvenile salmon from rivers draining into the eastern Bering Sea, 2) to describe the physical environment of the eastern and northeastern Bering Sea shelf occupied by juvenile salmon, and 3) to collect biological information on other ecologically important species. Summaries of previous Bering Sea juvenile salmon research cruises can be found in Farley et al. (1999, 2000, 2001, 2002, 2004, 2005).";
    String title "Eastern Bering Sea (BASIS) Coastal Research on Juvenile Fish (Catch data)";
    Float64 Westernmost_Easting -171.9933;
  }
}

 

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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