T-303A-6
Optimization of Traditional Bait Used in Quebec for the Lobster Fishery

Tuesday, August 19, 2014: 10:30 AM
303A (Centre des congrès de Québec // Québec City Convention Centre)
Marie-Elise Carbonneau , Valorisation, Merinov-Québec Centre for Innovation in Aquaculture and Fisheries, Gaspé, QC, Canada
Jean-François Laplante , Production, Merinov-Québec Centre for Innovation in Aquaculture and Fisheries, Cap-aux-Meules, QC, Canada
Jerome Laurent , Production, Merinov-Québec Centre for Innovation in Aquaculture and Fisheries, Grande-Riviere, QC, Canada
Dwindling abundance of species traditionally used as bait (mackerel, herring and plaice) has lead to increased prices for bait used in trap fisheries such as the lobster fishery in Quebec. It is estimated that the operating costs related to bait represent up to 15% of the gross daily income of fishermen. Merinov, in collaboration with key industry stakeholders, undertook research in 2013 aiming to optimize and reduce the usage of traditional baits. Traditionally, the baits are placed whole or in chunks in the traps. The new approach is to grind the raw bait material and put a small amount in bags with holes. The pockets allow retention of the bait while collaborating with the gradual diffusion of attractive molecules. The chemical characterization of the main compounds that attract lobsters has established a specific portrait of diffusion for each traditional bait. Tests conducted in commercial fishing conditions during the 2013 season in the Magdelen Islands demonstrated fishing yields similar to those obtained with traditional baiting procedures. The preliminary results of the 2014 season will also be presented.