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The National Institute for Aquatic Resources, supported by the Danish government has successfully completed electronic monitoring of fisheries for the first time in Europe. The trial was conducted on six fishing vessels from September 2008 to July 2009. The objectives were to evaluate the reliability and functionality of the electronic monitoring system as a tool to monitor discards of cod in trawl gillnet and seine fleets.

The target of fishery regulations in Europe are landings not catches and this has resulted in the problem of fishery discards. The fish prices are higher per kg for bigger fish and hence fishermen throwaway the least valuable part of the catch. Some by-catch comprises species not directly targeted or which may be prohibited to be landed and so must be discarded. Some fish are below the minimum landing size and must also be discarded. The magnitude of the discard problem is not known and biologists make an educated guess each year. According to the International Council of Exploration of Seas (ICES), for each kilogram of cod reported landed, one kg is thrown out and 600 grams landed illegally.

Under this project on electronic monitoring of fishing, data from cameras and sensors on the GPS and hydraulics allows one to with high accuracy where and when fishing has taken place and how big the catch and discards have been. The system used was developed by Archipelago Marine Research Ltd, Canada. Data from 5 708 hours of fishing from 561 trips was collected. The collected video and sensor data was of high quality and it is easy to recognise different species to ensure high security for verification of catch composition.

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