A conversion of squid effort from hours to man-days and some related considerations
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2006
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University of Cape Town
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Abstract
The South African jig squid fishery is a constant effort fishery, with the current unit of effort being one of man-hours. The target effort level is 3030 thousand man-hours based on recent assessment results, and the mechanism of effort control is to limit the number vessels (and crew) active in the fishery. The long term rights allocation process resulted in 109 companies with a complement of 123 vessels (and 2233 crew) being granted rights in this fishery. 214 crew and 16 vessels have been set aside for appeals. It is of concern that the target effort level has been exceeded in recent years (Figure 1), which suggests that the current restrictions on effort are not adequate. Measures that might be invoked to reduce effort include, for example, capping the days spent at sea, lengthening the closed season, introducing an additional closed season or combinations of these.
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Glazer, J. P., & Butterworth, D. S. (2006). A conversion of squid effort from hours to man-days and some related considerations. WG/08/06/SQ4