Supporting material for "From sailing to steam trawling: the evolution of bottom trawl effort in the North Sea"

This repository presents supporting material for the paper “From sailing to steam trawling: the evolution of bottom trawl effort in the North Sea”, in which a reconstruction of the fishing effort of the international bottom trawl fleets in the North Sea between 1820 and 1914 is presented. Historical data on gear dimensions, sailing vessel specifications, and vessel numbers, are presented for different fleets. Input data to reconstruct fishing grounds by country and fleet are presented, as well as the spatial polygons. Operational characteristics are presented required for the estimation of the surface of the seafloor swept by each fleet. Finally, results of a sensitivity analysis of the swept area estimation is presented.