Exploring Options for Syndromic Surveillance in Aquaculture: Outbreak Detection of Salmon Pancreas Disease Using Production Data from Norwegian Farms

Table 1

Overview of data used for developing and evaluating the performance of a syndromic surveillance system in aquaculture.

Data type	Description	Scale	Report frequency	Accessibility
Farm ID	Unique identification of farms	Categorical	Not applicable	Open^†
Production area	Production areas 1–13 established by regulation	Categorical	Not applicable	Open^†
Farm license	Type of farm license, including species and purpose of production	Categorical	On-demand	Open^†
Fish counts	Number of stocked fish	Discrete	Monthly	Closed
Fish deaths	Number of dead fish	Discrete	Monthly	Closed
Fish losses	Number of fish losses other than deaths, such as discarded and escaped fish	Discrete	Monthly	Closed
Fish weight	Mean weight of fish in grams	Continuous	Monthly	Closed
Temperature	Average sea surface temperature in Celsius	Continuous	Weekly	Open^‡
Salmon lice treatments	Number and type of treatments applied to control salmon lice	Discrete	Weekly	Open^‡
PD outbreak	Suspected or not suspected pancreas disease outbreak	Dichotomous	Daily	Open^‡

^†https://www.fiskeridir.no/Akvakultur/Registre-og-skjema/akvakulturregisteret. ^‡https://www.barentswatch.no/fiskehelse.