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Dataset Title:  [Predation Rate] - Predation rates by Pisaster ochraceus on Mytilus
californianus along the Oregon and Northern California rocky intertidal
coastline from 1999 to 2023 (RAPID: Testing the rocky intertidal community
consequences of the decimation of purple sea star populations along the Oregon
coast by sea star wasting disease)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_990987_v1)
Information:  Summary ? | License ? | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 GroupCode (unitless) ?          "OSU"    "OSU"
 SiteCode (unitless) ?          "BB"    "YB"
 Site (unitless) ?          "Bodega"    "Yachats Beach"
 Latitude (decimal degrees) ?          38.3182    44.83864
 Longitude (decimal degrees) ?          -124.5651    -123.0736
 Cape (unitless) ?          "Bodega Head"    "Point Arena"
 Region (unitless) ?          "NorCal"    "Oregon"
 State (unitless) ?          "California"    "Oregon"
 Year (unitless) ?          1999    2023
 Month (unitless) ?          6    12
 Day (unitless) ?          1    31
 Date (unitless) ?          "1999-06-14"    "2023-11-29"
 StartDate (unitless) ?          "1999-06-14"    "2023-06-21"
 DaysSinceStart (unitless) ?          0    178
 YearStart (unitless) ?          1999    2023
 Exposure (unitless) ?          "E"    "E"
 Zone (unitless) ?          "L"    "L"
 Rep (unitless) ?          "1"    "6"
 Treatment (unitless) ?          "CompleteCage"    "PartialCage"
 PisTreatment (unitless) ?          "Pisaster excluded"    "Pisaster present"
 PlotTimeline (unitless) ?          "End"    "Start"
 PlotStatus (unitless) ?          "Active"    "Active"
 MusselsAtStart (unitless) ?          1    65
 Count_LiveMussels (unitless) ?          0    65
 PropMussRemaining (unitless) ?          0.0    1.222222
 Change_Mussels (count) ?          -52    9
 MusselsAtEnd (count) ?          0    61
 TotalMussKilled (count) ?          -4    56
 N_Observations (unitless) ?          2    12
 StarSearch_Count (count) ?          "0"    "9"
 StarSearch_Area_m2 (meters squared (m2)) ?          "12.57"    "3.14"
 LocalStarDens_m2 (stars per square meter squared (#/m2)) ?          "0"    "9.87261146496815"
 PISOCH_InCC (unitless) ?          "A"    "Y"
 PISOCH_Count_InPlot (count) ?          "0"    "2"
 
Server-side Functions ?
 distinct() ?
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File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  GroupCode {
    String long_name "Groupcode";
    String units "unitless";
  }
  SiteCode {
    String long_name "Sitecode";
    String units "unitless";
  }
  Site {
    String long_name "Site";
    String units "unitless";
  }
  Latitude {
    Float32 actual_range 38.3182, 44.83864;
    String long_name "Latitude";
    String units "decimal degrees";
  }
  Longitude {
    Float32 actual_range -124.5651, -123.0736;
    String long_name "Longitude";
    String units "decimal degrees";
  }
  Cape {
    String long_name "Cape";
    String units "unitless";
  }
  Region {
    String long_name "Region";
    String units "unitless";
  }
  State {
    String long_name "State";
    String units "unitless";
  }
  Year {
    Int32 actual_range 1999, 2023;
    String long_name "Year";
    String units "unitless";
  }
  Month {
    Int32 actual_range 6, 12;
    String long_name "Month";
    String units "unitless";
  }
  Day {
    Int32 actual_range 1, 31;
    String long_name "Day";
    String units "unitless";
  }
  Date {
    String long_name "Date";
    String units "unitless";
  }
  StartDate {
    String long_name "Startdate";
    String units "unitless";
  }
  DaysSinceStart {
    Int32 actual_range 0, 178;
    String long_name "Dayssincestart";
    String units "unitless";
  }
  YearStart {
    Int32 actual_range 1999, 2023;
    String long_name "Yearstart";
    String units "unitless";
  }
  Exposure {
    String long_name "Exposure";
    String units "unitless";
  }
  Zone {
    String long_name "Zone";
    String units "unitless";
  }
  Rep {
    String long_name "Rep";
    String units "unitless";
  }
  Treatment {
    String long_name "Treatment";
    String units "unitless";
  }
  PisTreatment {
    String long_name "Pistreatment";
    String units "unitless";
  }
  PlotTimeline {
    String long_name "Plottimeline";
    String units "unitless";
  }
  PlotStatus {
    String long_name "Plotstatus";
    String units "unitless";
  }
  MusselsAtStart {
    Int32 actual_range 1, 65;
    String long_name "Musselsatstart";
    String units "unitless";
  }
  Count_LiveMussels {
    Int32 actual_range 0, 65;
    String long_name "Count_livemussels";
    String units "unitless";
  }
  PropMussRemaining {
    Float32 actual_range 0.0, 1.222222;
    String long_name "Propmussremaining";
    String units "unitless";
  }
  Change_Mussels {
    Int32 actual_range -52, 9;
    String long_name "Change_mussels";
    String units "count";
  }
  MusselsAtEnd {
    Int32 actual_range 0, 61;
    String long_name "Musselsatend";
    String units "count";
  }
  TotalMussKilled {
    Int32 actual_range -4, 56;
    String long_name "Totalmusskilled";
    String units "count";
  }
  N_Observations {
    Int32 actual_range 2, 12;
    String long_name "N_observations";
    String units "unitless";
  }
  StarSearch_Count {
    String long_name "Starsearch_count";
    String units "count";
  }
  StarSearch_Area_m2 {
    String long_name "Starsearch_area_m2";
    String units "meters squared (m2)";
  }
  LocalStarDens_m2 {
    String long_name "Localstardens_m2";
    String units "stars per square meter squared (#/m2)";
  }
  PISOCH_InCC {
    String long_name "Pisoch_incc";
    String units "unitless";
  }
  PISOCH_Count_InPlot {
    String long_name "Pisoch_count_inplot";
    String units "count";
  }
 }
  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.990987.1";
    String history 
"2026-05-25T00:07:55Z (local files)
2026-05-25T00:07:55Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_990987_v1.html";
    String infoUrl "https://osprey.bco-dmo.org/dataset/990987";
    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 
"This dataset contains time-series measurements of mussel (Mytilus californianus) survival and experimental predation rates by the sea star Pisaster ochraceus from rocky intertidal sites along the North American west coast from 1999 to 2023.

Study/Experiment abstract:

Mass mortality from disease epidemics can challenge the resistance and resilience of populations and communities. Assessing the impacts of such events and their consequences is crucially dependent on long-term datasets. In 2013-16, sea star wasting disease (SSWD) caused population-wide crashes of the archetypal keystone species, the sea star Pisaster ochraceus, along the North American west coast. We used a long-term dataset to assess how predation rates by Pisaster on Mytilus californianus varied over a 16-year time series (2007-2023) of annual predation rate at 7 sites. As expected, SSWD drove predation rates to near-zero. This persisted for 3-8 years depending on site, and as of 2024, predation rates at two sites remained unrecovered.";
    String title "[Predation Rate] - Predation rates by Pisaster ochraceus on Mytilus californianus along the Oregon and Northern California rocky intertidal coastline from 1999 to 2023 (RAPID: Testing the rocky intertidal community consequences of the decimation of purple sea star populations along the Oregon coast by sea star wasting disease)";
  }
}

 

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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