More: Catching fish then letting them go is actually causing them harm (9. Oct. 2018)Mouth injuries caused by hooks can hinder the ability of fish to eat properly, according to a new study.
The findings will be alarming for anglers who consider their hobby not only harmless to fish, but also a way to conserve at-risk species.
(BTW, how would catch-and-release angling conserve at-risk species?)