LobsterLift is a lineless, self-surfacing, modular lobster trap retrieval system. Traps utilizing LobsterLift sit entirely on the seafloor, never extend a line to the surface, and raise themselves only when needed. This eliminates the possibility of entanglement. In order to retrieve a trawl, a lobsterman sends an acoustic signal from a tracker on their boat to a module attached to their trawl. Critically, our technology enables lobstermen to keep fishing the way they always have – important for encouraging adoption. LobsterLift optimizes use of marine resources while preventing overfishing.