The catching efficiency of cod gillnets with different hanging ratio (E) and different floatline buoyancy.
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The floatline buoyancy seems to influence the catching efficiency of cod gillnets. Trials with different byoyancies in cod gillnet fishing in Northern Norway gave the best catches with a buoyancy of about 65 grammes per metre floatline. Comparative fishing with nets of different hanging ratios showed that the usual hanging ratio in Norwegian cod gillnets E = 0.5, is not the most efficient one. The best catch per gillnet was obtained with a hanging ratio of about 0.6