{
    "@context": "http://schema.org/",
    
      "@type": "Dataset",
    
    
    "url": "https://antcat.antarcticanz.govt.nz/geonetwork/srv/eng/catalog.search#/metadata/dd97b9fc-0d5c-4975-a044-aa8bfaec6eaa",
    "includedInDataCatalog":{
      "@type":"DataCatalog",
      "url":"https://antcat.antarcticanz.govt.nz/geonetwork/srv/"
      
    },
    
    "inLanguage":"eng",
    
    "name": "phytoclass: A pigment-based chemotaxonomic method to determine the biomass of phytoplankton classes",

    
    
      "dateCreated": 
	  "2023-03-17T00:00:00",
	
      "datePublished": 
	  "2023-03-17T00:00:00",
	
      "thumbnailUrl": 
	  "https://antcat.antarcticanz.govt.nz:/geonetwork/srv/api/records/dd97b9fc-0d5c-4975-a044-aa8bfaec6eaa/attachments/asp_crop.png",
	
    "description": "This metadata record represents the R phytoclass package.\n\nDetermine the chlorophyll a (Chl a) biomass of different phytoplankton groups based on their pigment biomarkers. The method uses non-negative matrix factorisation and simulated annealing to minimise error between the observed and estimated values of pigment concentrations (Hayward et al. (2023) https:\/\/doi.org\/10.1002\/lom3.10541). The approach is similar to the widely used 'CHEMTAX' program (Mackey et al. 1996) https:\/\/doi.org\/10.3354\/meps144265), but is more straightforward, accurate, and not reliant on initial guesses for the pigment to Chl a ratios for each phytoplankton group.\n\nFurther details are provided at:\nHayward, A., M. H. Pinkerton, and A. Gutierrez-Rodriguez. 2023. phytoclass: A pigment-based chemotaxonomic method to determine the biomass of phytoplankton classes. Limnol. Oceanogr. Methods 21: 220\u2013241. https:\/\/doi.org\/10.1002\/lom3.10541\n\nGET PACKAGE:\nhttps:\/\/cran.r-project.org\/web\/packages\/phytoclass\/readme\/README.html",

    
    
    
    
      "identifier": {
        "@id": "https://doi.org/10.1002/lom3.10541",
        "@type": "PropertyValue",
        "propertyID": "https://registry.identifiers.org/registry/doi",
        "value": "doi:10.1002/lom3.10541",
        "url": "https://doi.org/10.1002/lom3.10541"
      },
    


    
    "keywords":[
    "PHYTOCLASS","COMMUNITY STRUCTURE","MODELS","PHYTOPLANKTON","CHLOROPHYLL","Models","ASP"
    ]


    
    ,"creator": {
          
          
          "@type":"Person"
          
            ,"name": "Hayward, A."
            ,"email":  "alexhayward1995@gmail.com"

          
          ,"contactPoint": {
          "@type" : "PostalAddress"
          
          }
          }
        ,"publisher": {
          

          
          "@type":"Organization"
          
            ,"name": "Limnology and Oceanography: Methods"
            ,"email":  ""

          
          ,"contactPoint": {
          "@type" : "PostalAddress"
          
          }
          }
        

    
    
    ,"distribution": 
      {
      "@type":"DataDownload",
      "contentUrl": "https://cran.r-project.org/web/packages/phytoclass/readme/README.html",
      "encodingFormat": "WWW:LINK-1.0-http--link",
      "name": "Distribution Metadata"
      
      }


    ,"spatialCoverage":
    
      {"@type": "Place",
      
      "geo": [
        {"@type": "GeoShape",
        "box": "-90.00 -160.00 -55.00 -40.00"
        },
        {"@type": "GeoShape",
        "box": "-90.00 40.00 -55.00 160.00"
        }]
      }
    

    ,"temporalCoverage": 
      "/"
      
      ,"license": 
          "https://creativecommons.org/licenses/by/4.0/"
        
    , "citation": "Hayward, A., Pinkerton, M.H., Gutierrez-Rodriguez, A., ( 2023 ) phytoclass: A pigment-based chemotaxonomic method to determine the biomass of phytoplankton classes. Limnology and Oceanography: Methods. https://doi.org/10.1002/lom3.10541, Accessed: 2026-07-29+12:00"

    }