Abstract
Abstract A fisherman's choice between owning few traps and fishing them often, and owning many traps and fishing them less often can affect his profit. In a Newfoundland fishery for the snow crab (Chionoecetes opilio), a fisherman fishing 70% of the days of the season should own twice as many traps as he hauls per day, while a fisherman fishing 20% of the days of the season should own only the number of traps he hauls per day. Fishermen typically own more than the economic optimum number of traps. These conclusions were based on changes in catch with soak time, the cost of traps, and the number and spacing of fishing days during the season. An experiment comparing day and night catch rates provided no support for the popular view among snow crab fishermen that crabs trap better at night. Traps with 3 kg of bait caught about 50% more crabs than traps with 1 kg of bait when fished for both 1-day and 4-day soak times.
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