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Fishing effort is defined here as the time spent engaged in fishing operations. Therefore, fishing effort of passive gears should be interpreted with caution as it does not reflect the actual fishing time, just the time spent setting and retrieving the gear. Similarly, effort estimates for pelagic trawlers should be interpreted with care, as vessels targeting pelagic species tend to spend most of their time steaming and a relatively short time fishing and not all fishing operations may be captured in the VMS data. Fishing gears have been classified into eight main groups: demersal otter trawls; beam trawls; demersal seines; gill and trammel nets; longlines; dredges; pots and pelagic trawls.<\/SPAN><\/P>

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