Yes, but sending a human scuba diver down 3h/day to catch max 20kg of lionfish for $50-100 on loaded cost per dive, or $150-300/day is...not an efficient soluti

Yes, but sending a human scuba diver down 3h/day to catch max 20kg of lionfish for $50-100 on loaded cost per dive, or $150-300/day is...not an efficient solution for that. If the fish could be sold at enough of a premium it might defray some of those costs, but for animal feed you'd be about $0.50/kg.