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November 05, 2013

New App Helps Sport Fishermen Properly Kill Fish Kept for Food

To apply the Japanese method of iki jime, anglers must know the precise location of a fish’s brain.

Using a Japanese technique called iki jime, anglers can quickly and humanely kill fish to be kept for food while also enhancing the quality of the meat.

The term, Japanese for “live killing,” involves spiking a fish’s brain with a filet knife, sharpened screwdriver or a special tool. However, says Ben Diggles, Ph.D. and a Sport Fishing Fish Facts expert, to be effective, iki jime requires an angler to know precisely where in any fish the brain is located. “Fish have small brains, and the location of the brain varies somewhat among species groups,” he says.

The answer: A unique new set of apps that offers instant access to diagrams and head x-rays of dozens of species. Though the emphasis is on fishes of the Australasia region, many species are important targets in the United States, also.

Three versions of the app are available, with the extremeversion offering full database access even when anglers are in remote locations or offshore with no phone or internet service -- available in versions for IPhone or Android.