FRIEND SENT ME THE BELOW LINK.   sEEMS cANADIANS ARE IN AGREEMENT HOW TO OPERATE CATCH AND RELEASE IN THE BEST POSSIBLE WAY.

https://flylifemagazine.com/hook-and-release-realities-a-canadian-study-of-atlantic-salmon/?fbclid=IwAR1KyBouvYMdUNGE1mDfMA8ianb-ng8GS2WFLkjtSUIQ546uRselbc1MNyQ

 No many reports of spawning fish though fluctuating river levels don't help.   Wonder if NRW or WUF bother to have a look these days.?