Israeli startup Subflex builds cages for the planned offshore fish farms near Ashdod, that I reported on previously (in Aug). The submersible, flexible net cage systems will allow for the managed raising of fish in the ocean, providing large, locally grown harvests that will help lower the cost of fish.
http://www.timesofisrael.com/the-israeli-tech-start-up-out-to-beat-the-fish-cartel/