Fishers like Tun-Lin never see these small, unsalable fish make it to port. They are passed to a sister boat at a rendezvous, traded along with food, cigarettes, Thai baht, and fuel. This is called transshipment at sea. It saves fuel for the larger refrigerated fishing vessels, and it allows some boats to stay out almost indefinitely. Resupplied by others, they turn into floating prisons for trafficked workers.
