...

SELECT ?collection_code ?concept_code ?concept_label  WHERE {
    ?collection skos:notation ?collection_code . FILTER (str(?collection_code)='fisheries') .
    ?collection skos:member ?concept .
    ?concept skos:notation ?concept_code .
    ?concept skos:prefLabel ?concept_label .
}

Manipulate data

Add a triple to all skos:Concept in a graph  

INSERT
{ GRAPH <graph_name>
 {?s prefix:property <property_value> } }
WHERE {
    ?s rdf:type skos:Concept .

}