Byske (Swedish pronunciation: [ˈbʏ̂sːkɛ]) is a locality situated in Skellefteå Municipality, Västerbotten County, Sweden with 1,752 inhabitants in 2013. References. Fishing for Salmon is allowed until the 31st of August. Until the 18th of June it is catch and release only, meaning all fishes caught, dead or alive, must be released back into the river. Land owners* who holds a fishing right are allowed to kill and keep salmon during the period 1 January until 31 August. Between 1 August and 31 August you're only allowed to keep salmon within the length of 50–63 cm.
https://en.wikipedia.org/wiki/Byske