A frosty wind was blowing in from the Sea of Japan at the Suttsu fishing port in Hokkaido in late November. There, catching anglerfish with a grim look on his face was 77-year-old fisherman Kyozo Kimura.

"The haul of fish has been decreasing to the point where we can't even make ends meet. It has been tough," said Kimura.

In 1977, Kimura, a native of the town of Matsumae, married into a family whose fishing business had been around for five generations since the Meiji Era (1868-1912). Longline fishing of trout prospered at the time, and he reminisced about the time when he got a new 29-ton ship, funded by his father-in-law, and was filled with hope that he could go out fishing anywhere with it.