In fact, ethical anglers around the world are now turning to a centuries-old Japanese technique that stands to transform the way we handle fish: Ike jime. AdvertisementA SIMPLE PROCESSIn four easy steps, here’s how the ike jime process works to quickly and respectfully kill fish right after they’re landed. SPIKE THE BRAIN A sharp needle is inserted into the fish’s brain, located behind the eyes. Visit www.ikijime.com for species-specific diagrams on where to locate the fish’s brain, along with a video showing the entire ike jime process. TOOLS OF THE TRADEGo online and you can find a number of ike jime tools available to order from Japan.