@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:related . skos:narrower . skos:related . skos:narrower . skos:altLabel "ABS" ; skos:broader ; skos:definition "A technique to quantify the abundance of suspended particles based on measuring the returned proportion of sound transmitted and received by an instrument located in the water column."@en ; skos:notation "SDN:S04::S041004" ; skos:note "accepted"@en ; skos:prefLabel "in-situ acoustic backscatter measurement"@en ; skos:related . skos:member .