大眼金槍魚：資源水平“低位”, 過度捕撈現象嚴重

A few weeks ago the Mainichi News on-line reported the following:

メバチマグロ:資源レベル「低位」　乱獲が深刻化

毎日新聞　2015年05月09日　20時00分（最終更新　05月09日　20時08分）

　日本で刺し身用マグロとしては最も多く消費されているメバチマグロは、日本漁船の主要漁場である中西部太平洋で資源レベルが「低位」となり、しかも減少傾向にあるとの評価を水産総合研究センターが９日までにまとめた。

　高級トロの材料になるクロマグロだけでなく、比較的低価格のマグロでも乱獲が深刻化していることを示しており、日本漁船を含めた漁獲量の削減を求める声が高まることは確実だ。

　同センターによると、産卵能力がある親魚の量は、漁業が本格化した１９５０年以降、減少が続き、２０１２年には、この海域にもともといた量の１６〜２０％程度に減っている可能性がある。（共同）

(試譯文)

  In the Midwest Pacific Ocean, which was a major fishing ground of Japanese fishing boats for big-eyed tuna consumed mostly as tuna for sashimi in Japan, the resource level was "low". On the 9^th an assessment gathered by the Fisheries Research Agency had evaluated that the level tended to decrease further.

   It showed that not only for the Blue fin tuna, which was the material of the luxury fatty tuna, overfishing was getting intensified even for the relatively low-priced tuna. It was certain that voices had increased, including those from the Japanese fishing boats, asking for a reduction in catch.

   According to the said center, the amount of the parent fish with the ability to lay eggs continued to decrease after fishing got into full swing since 1950. In 2012 there was a possibility that the amount in this sea area could decrease from the original by about 16 - 20 %.

Over catching of fish is always a problem as the world population is increasing.