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| Dataset Title: | Thiamine Deficiency in California Salmon
|
| Institution: | NOAA/NMFS/SWFSC/FED (Dataset ID: Salmon_thiamine) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
sample_id {
String ioos_category "Other";
String long_name "Sample ID";
}
year {
Int32 actual_range 2020, 2025;
String ioos_category "Other";
String long_name "Year";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range 37.51461, 40.85597;
String axis "Y";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range -123.9914, -120.3727;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
sequence {
Int32 actual_range 1, 8;
String description "Used to order collections by time within each year";
String ioos_category "Other";
String long_name "Sequence Number";
}
collection_type {
String ioos_category "Other";
String long_name "Collection Type";
}
treatment_status {
String ioos_category "Other";
String long_name "Treatment status";
}
boat_hatchery {
String ioos_category "Other";
String long_name "Boat or Hatchery";
}
port_landed {
String ioos_category "Other";
String long_name "Port Landed";
}
collection_date {
String ioos_category "Time";
String long_name "Collection Date";
}
species {
String ioos_category "Other";
String long_name "Species";
}
run {
String ioos_category "Other";
String long_name "Run";
}
stock {
String ioos_category "Other";
String long_name "Stock";
}
adipose_fin {
String ioos_category "Other";
String long_name "Adipose Fin";
}
fl_mm {
Int32 actual_range 58, 1010;
String ioos_category "Other";
String long_name "FL";
String units "mm";
}
avg_egg_diam_mm {
Int32 actual_range 3, 8;
String ioos_category "Other";
String long_name "Avg Egg Diam";
String units "mm";
}
stdev_egg_diam_mm {
Int32 actual_range 0, 0;
String ioos_category "Other";
String long_name "Stdev Egg Diam";
String units "mm";
}
avg_num_eggs {
Int32 actual_range 5, 8;
String ioos_category "Other";
String long_name "Avg Num Eggs";
}
avg_total_egg_thi {
Float32 actual_range 1.0, 223.34;
String ioos_category "Other";
String long_name "Ave Total Egg Thiamine";
String units "nmol/g";
}
avg_total_thi_per_egg {
String ioos_category "Other";
String long_name "Ave Total Egg Thiamine per egg";
String units "nmol";
}
egg_thi_status {
String description "Critically Low (<2.9nmol/g); Low thiamine (>3nmol/g but <5nmol/g); Intermediate (>5nmol/g but <8nmol/g); High thiamine (>8 nmol/g)";
String ioos_category "Other";
String long_name "Egg Thiamine status";
}
new_status {
String description "Severly Impacted (<2.9nmol/g); Impacted (>3nmol/g but <5nmol/g); Likely Impacted (>5nmol/g but <8nmol/g); Unlikely Impacted (>8 nmol/g)";
String ioos_category "Other";
String long_name "New Egg Thiamine status";
}
cwt {
Int32 actual_range 54778, 68729;
String ioos_category "Other";
String long_name "CWT";
}
brood_year {
Int32 actual_range 2016, 2020;
String ioos_category "Other";
String long_name "Brood year";
}
stock_id {
String ioos_category "Other";
String long_name "Stock ID";
}
release_site {
String ioos_category "Other";
String long_name "Release Site";
}
release_date {
String ioos_category "Other";
String long_name "Release Date";
}
origin {
String ioos_category "Other";
String long_name "Origin";
}
}
NC_GLOBAL {
String cdm_data_type "Other";
String Conventions "CF-1.6, ACDD-1.3, COARDS, NCCSV-1.2";
String defaultGraphQuery "fl_mm,avg_total_egg_thi,year&.draw=markers&.marker=5|5&.colorBar=%7CD%7C%7C2020%7C2023%7C3";
Float64 Easternmost_Easting -120.3727;
Float64 geospatial_lat_max 40.85597;
Float64 geospatial_lat_min 37.51461;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -120.3727;
Float64 geospatial_lon_min -123.9914;
String geospatial_lon_units "degrees_east";
String history
"2025-03-26T09:48:51Z (local files)
2025-03-26T09:48:51Z http://upwell.pfeg.noaa.gov/erddap/tabledap/Salmon_thiamine.html";
String infoUrl "https://www.fisheries.noaa.gov/west-coast/science-data/monitoring-thiamine-deficiency-california-salmon";
String institution "NOAA/NMFS/SWFSC/FED";
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 40.85597;
String publisher_email "rachel.johnson@noaa.gov";
String publisher_name "Rachel Johnsom";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 37.51461;
String standard_name_vocabulary "CF Standard Name Table v70";
String subsetVariables "sample_id,year,collection_type,treatment_status,boat_hatchery,port_landed,collection_date,run,stock,species,adipose_fin,egg_thi_status,new_status,brood_year,stock_id,release_site,release_date,origin";
String summary "Thiamine deficiency complex (TDC) was first observed in juvenile California Chinook salmon in early 2020, coinciding with changes in oceanic conditions that disrupted the marine food web. As female salmon returned to freshwater spawning grounds with low levels of this essential vitamin, they provided insufficient thiamine to their eggs, inhibiting proper development. This led to increased mortality rates among juveniles in hatcheries, with surviving fish exhibiting symptoms of TDC, such as erratic swimming and lethargy. In response, a collaborative effort involving multiple agencies began to investigate the prevalence and impacts of thiamine deficiency in California salmonids. <p>To assess thiamine deficiency and its effects over time, egg thiamine levels have been systematically measured at various hatcheries in central and northern California. Unfertilized eggs from mature Chinook salmon (<i>Oncorhynchus tshawytscha</i>), Steelhead trout (<i>Oncorhynchus mykiss</i>), and coho salmon (<i>Oncorhynchus kisutch</i>) were collected across California to measure thiamine concentrations. This ongoing surveillance has shown a rising incidence of TDC in nearly all populations in California’s Central Valley and coastal hatcheries. Additionally, laboratory studies have investigated the relationship between egg thiamine concentration and offspring survival, helping to understand population-level impacts of thiamine-dependent mortalities.";
String title "Thiamine Deficiency in California Salmon";
Float64 Westernmost_Easting -123.9914;
}
}
Data Access Protocol (DAP) and its
selection constraints.
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://upwell.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://upwell.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.