Assertion: bluff's population | /r/HasProperty | introduced as experiment
Facets:
value: from the fisheries laboratory
type: LOCATION
value: deliberately
type: MANNER
value: during the 1960s
type: TEMPORAL
Source sentences:
text: Also, a self-sustaining population in the Menai Strait was deliberately introduced from the Fisheries Laboratory, Conwy, during the 1960s as an experiment to establish if they could form an alternative to the native oysters Ostrea edulis in fisheries, when the species was shown to be unsuitable because of low recruitment and vulnerability to parasites and pathogens the experiment was abandoned.