Electronic catch registration onboard commercial fishing vessels for commercial and scientific use
2009
In assessment and management of marine fish resources, representative data of statisticallygood quality describing the actual catch are lacking for many fisheries. Even for the moststudied fisheries in the north Atlantic, the uncertainty regarding what is actually caught hasimplications for management.Fish stock assessments and sound advice in most cases rely on representative samples ofcatches. Distant and high sea fisheries often suffer from poor sampling due to samplingpersonal logistics. Consequently, stock assessment and management of marine fish resourcesexploited by those fisheries are based on poor or scarce catch data. Presently, sampling at seaare often random in time and place, and not necessarily representative with respect to the fleetmetier.Biological sampling in distant waters is a challenge due to logistics and high costs. The use ofelectronic scales onboard commercial fishing vessels opens for a new approach in datacollection. In recent years electronic scales measuring individual fish weights on deck havebeen connected to GPS in combination with data on depth, fishing gear, logbook informationetc. This approach will link detailed data to auxiliary information on the fishery, thereby meetthe challenges of obtaining representative fishery data, continuous and full samplingproviding a sufficient data basis for fish stock assessments and subsequent fisheriesmanagement for species found in distant waters.
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