THE SEASONAL VARIABILITY OF CPUE AND CATCH-AT-SIZE DISTRIBUTION OF TROLL AND HANDLINE TUNA FISHERIES LANDED IN LABUHAN LOMBOK
Abstract: Troll and hand line
tuna fisheries is one of the major fishing gears landed in Labuhan Lombok
coastal fishing port (PPP Labuhan Lombok) west Nusa Tenggara Barat
province. Both fisheries are strongly
associated with fish aggregating devices (FAD’s). The main fishing ground is
Indian Ocean southern part of this province.
Several source of data has been collected regularly. Data analysis
comprised of monthlycatch and effort data samples based onport monitoring
program during 2012 to 2015. The result showed the diclining of CPUE of yellow
fin and skipjack tuna presumably related to fishing intensity of fleets and its
variability that landed in PPP Labuhan Lombok.
The increasing CPUE of skipjack tuna in 2014 was predicted due to
increasing aggregation around the FADs. Constrasting seasonal fishing index
pattern between yellowfin and skipjack tuna foundin 4-month cycles, started in
January.A length-weight relationship suggested that yellowfin tuna caught
bysmall-scale fisheries were performing allometric growth pattern (b=2.963,
r2=0.9737).
Keywords: Troll and handline
fisheries; FADs; fishing season; Labuhan Lombok
Author: Bram Setyadji, Hety
Hartaty, Siti Mardlijah
Journal Code: jpperikanangg160040
