Gyrodactylus salaris – kartlegging i Drammensregionen

Overvåkingsprogrammet utredet om Gyrodactylus salaris finnes på fiskebestander i innsjøer og elver som drenerer til Drammenselva i perioden 2015-2018.

2020

This report presents results from a surveillance programme to document absence of Atlantic salmon (Salmo salar) and G. salaris in the River Drammenselva upstream of Hellefossen.

The aim of the surveillance program is to document if the Atlantic salmon population, and subsequently the G. salaris population is reduced and eventually eradicated upstream of Hellefossen after the closure of the fish ladder. This surveillance program thus aims to document if the decision to close the ladder has had the intended effect.

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