These results showed that the LPUE declined because lower surfclam abundance required an extended time at sea to catch a full load.
In addition, closure of one 10-min square per year resulted in increased LPUE because the areas opened each year contained high-density surfclam patches.
Average per month of shrimp LPUE fluctuated between 0.2 and 36.0 kg trip-1 and showed a temporary behavior according to the landing.
Despite of the monthly variation of LPUE during the year, there were no significant differences in this variable between seasons (dry-rainy) when calculated with shrimp (BIOENV, R = 0.221, P = 0.164), bycatch (BIOENV, R = 0.366, P = 0.077) and total LPUE [shrimp + bycatch] (BIOENV, R = 0.136, P = 0.268).
During this time, a captain's memories of stock distribution and LPUE develops and the stock is fished down to a desired specified level.
The primary management objective is to insulate both the Atlantic surfclam stock and the commercial LPUE from further decline.
Years with more trips had lower average LPUE values while years with fewer trips had higher LPUE values.
Annual mean catch (CPUE) and landings (LPUE) rates for eight commonly landed fishes were calculated in terms of fish per angler-hour for anglers (Fig.
The upper-right position of the codling was a result of its high abundance (LPUE
) and the depth reached.
of selected species and the economic performance of trips were also analyzed.
This estimate for fishing effort enables us to present novel landings-per-unit-of-effort (LPUE
) data for the market squid.
Fishing tactics (groups of fishing trips with similar catch composition) were described by i) the total catches and relative proportion of the species in landings; ii) temporal (seasonal) patterns of fishing trips; iii) fishing areas and depths and iv) catch rates (LPUE