Ian Peterman describes a timer mechanism that automatically closes snow crab traps after 24 hours, letting fishermen spread traps across a wide area and retrieve them later without needing multiple vessels or precise timing.
Chapters
On deep waters, they put out snow crab traps around a big area and they let them fish for exactly 24 hours, and then they pick it up and they count the catch. But that is very resource demanding on them because they have to be there on all places after exactly 24 hours, and timing-wise, that is hard. So they came up with the idea of using our timer mechanism. So they made a stretched-up mechanism that when our timer released, it actually closed the trap so no more species could enter. So then they could spread these traps along the, the seafloor, and they knew that they would stop fishing at exactly 24 hours because of our timer mechanism. And then they could come out and get them a day later, 2 days later, 3 days later, didn't matter. And that way they could all— with only one vessel, they could scan or they could do the survey over a large area. So that was also something that we didn't think about, of course, but it ended up being used that way, and to us that's great.