読売新聞は4月20日，三陸のワカメ養殖が津波によって甚大な被害を受けたとを報道しています。ワカメ養殖は例年3-4月に収穫の最盛期を迎えますが，例年よりも養殖が遅れていたため，本格的な収穫前に津波の被害を受けてしまいました。津波前の今季の収穫量は，宮城県で635トン，岩手県で15トンと報道されています。
（参考：平成16年の生産量，宮城県約19000トン，岩手県約27000トン）
Yomiuri Shinbun (Newspaper)
http://www.yomiuri.co.jp/e-japan/iwate/news/20110419-OYT8T01108.htm
Iwate and Miyagi Prefecture, the Pacific coast of Tohoku region, Japan, are known as the most famous Undaria cultivation field in Japan, and their productions occupy 45% and 30% of Japanese production, each. Unfortunately, almost all Undaria farms in this region have been strongly damaged by 3.11 Tsunami disaster. Yomiuri Shinbun (newspaper), Tokyo, reported (Apr 20).
Note (RT): Initial cost to establish Undaria cultivation is known to be relatively lower than other fisheries aquaculture. Free-living gametophyte has already been stocked in some research Institution. I guess that cultivation will be recovered partly in next season.