Shrimping in asia maybe. Shrimping in the U.S. has gotten super clean, especially on the west coast in the last few years.  9 non-target species do not die for every two shrimp harvested in U.S. Bottom trawling is mainly conducted on soft bottom,as rocky bottom snags nets, and mostly stirs up silt,mud,sand. Some studies have found that stirring up stagnant ocean bottom are very much conducive to promoting a healthy ocean eco-system as it puts otherwise lost nutrients back into the food chain. Pots on the other hand can fished on any bottom and have been shown to do significant damage to fish habitat especially coral beds. Pot fishing could be beneficial to the trawl fleet  as it can DECREASES overhead but is not lawfully permitted. I don't speak or pretend to know what most Alaska readers know but as a life long longliner i do know that the IPHC has mismanaged  the halibuts stocks. Ive heard trawling called a lot of things but not tell now have I ever heard/read it called inefficient.