"Coarse fishing" refers to the activity of catching fish for pleasure rather than for food. It typically involves using fishing rods and lines to catch freshwater fish like carp, perch, or roach. Full definition
We also have coarse fishing in our own lakes especially for our holiday cottage guests at a small charge. (lovetoescape.com)
1988 Research Associate, Anglian Water — studied reproduction of coarse fish; established fish farm and fish production for restocking programmes (sciencemag.org)
Spring and Summer Fashion Toe Buckle Strap with Coarse Fish Mouth Korean Version Rome Shoes - Black - 36 (nastydress.com)