Interannual Variability of Fisheries Economic Returns and Energy Ratios Is Mostly Explained by Gear Type
Table 1
Average fleet size (N), number of functional groups and species landed, variance ratio of functional groups and species and annual economic return (landed value - costs) and energy ratio (fuel energy/landings energy) for the French fleets fishing in the Bay of Biscay averaged over the period 2001–2009; minimum and maximum annual values in brackets.