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4. Bjordal, Å., 1983a. Effect of different long-line baits (mackerel, squid) on catch rates and selectivity for tusk and ling. ICES CM 1983/B, 31
5. Bjordal, Å., 1983b. Longline: fullscale trials with new hook designs and reduced size of bait. ICES CM 1983/B, 32