Scientists and sometimes professional skippers who want to correlate fishing results with fishing conditions, and those who want to keep a record of fishing conditions as a help in decision making for future fishing operations are interested in storing ail the available information under a format which makes as easy as possible ail comparisons, correlations and data processing, ail these operations being possible with the same PC computer. A data acquisition software has been developed to record data from analog/digital inputs, Scanmar system and GPS navigation system.