Deepsea Trawling for Orange roughy - St Helens north-east Tasmania. I spent years as a scientific observer working on orange roughy vessels, collecting the data that helped rebuild this fishery. It is a species with a big history and plenty of myths, so here is the short version of what actually happened. Orange roughy boomed in the 1990s when huge spawning aggregations were discovered on deep seamounts. Nobody realised how slow growing the species was, and there was little biological informatio