Fukushima seafood on the market

AP

The first catch of seafood from Japan's Fukushima coast since last year's nuclear disaster is being sold after passing radiation tests.

The Fukushima Prefectural (state) fishing co-operative said only octopus and a marine snail known as whelk were going on sale Monday.

They were caught Friday and were boiled so they would last longer while being tested for radiation.

The association said the amount of radioactive cesium was so low it was not detectable.

Octopus and whelk were chosen for the first test shipment because they measured low in radiation. Flounder, sea bass and other fish from Fukushima cannot be sold yet because of radiation contamination.

The March 11, 2011, earthquake and tsunami devastated the north-eastern Japan coast.