About: http://webisa.webdatacommons.org/20217496

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In most of the surface ocean, the photic zone is either permanently or seasonally depleted of nutrients and in particular N, which are limiting primary production.
http://www.w3.org/ns/prov#wasQuotedFrom	ncl.ac.uk