@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

nalt:69
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  dc:modified "2012-11-30"^^xsd:date ;
  skos:definition nalt:69_def ;
  skos:prefLabel "euphotic zone"@en, "zona eufótica"@es ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:related nalt:11530 ;
  skos:broader nalt:66 ;
  dc:created "2006-01-19"^^xsd:date ;
  skos:altLabel "limnetic zone"@en, "photic zone"@en ;
  skos:hiddenLabel "euphotic-zone"@en ;
  ns0:marc001 "14477" .

nalt:11530
  skos:prefLabel "fitopláncton"@es, "phytoplankton"@en ;
  a ns0:Organism, skos:Concept ;
  skos:related nalt:69 .

nalt:69_def
  rdf:value "Capa superficial de un cuerpo de agua donde penetra suficiente luz para permitir que se produzca fotosíntesis, hasta una profundidad en que la intensidad de la luz disminuye a 1% de luz incidente."@es, "Surface layer of a body of water where sufficient light penetrates to allow photosynthesis to occur, down to the depth at which the light intensity falls to 1% of incident light."@en ;
  dc:source "NAL Thesaurus Staff" ;
  a ns0:Definition .

ns0:Topic
  rdfs:label "Topic"@en ;
  a owl:Class .

<https://lod.nal.usda.gov/nalt>
  rdfs:label "NALT Full"@en ;
  a skos:ConceptScheme .

nalt:66
  skos:prefLabel "zonas acuáticas"@es, "aquatic zones"@en ;
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:69 .