COST-EFFECTIVE APPROACH TO ESTIMATE UNREPORTED DATA: REBUILDING HISTORY OF LIFT-NET FISHING IN KWANDANG WATERS
Abstract: This paper aims to
develop cost-effective approach regarding the estimation unreported annual
catch data of lift-net fishery using Google Earth imagery. Lift net fishery is
one of the main fishing activities of coastal community in Kwandang Bay, it has
been faced problem of uncertain fisheries status due to limited recorded data.
Combination of a Monte Carlo procedure was applied by involving couple of
assumptions on parameters such as estimate growth rate of the total number of
lift-net per years (10%), day at sea per unit per month (21 days) and operated
lift-net per month (50% and 80%). The results showed that 101 units of
lift-nets were found around Kwandang waters based on Google Earth imagery
recorded in October, 7th 2010, and this were used as a benchmark of
calculation. This prediction was 28 units higher than official data from North
Gorontalo District of Marine Affairs and Fisheries Services (DKP Gorontalo
Utara). Compared with capture fisheries statistics issued by Kwandang CFP, the
estimated lift-net catches based on two-scenarios represent additional catches
of 46 % and 86 %. These results suggested and could be used as a correction
index to improve the reliability of Kwandang District officially reported
fisheries statistics as a baseline to develop a local common fisheries policy.
Keywords: Cost-effective
approach; unreported data; lift-net fishing; Kwandang waters
Author: Andhika Prima
Prasetyo, Duto Nugroho, Lilis Sadiyah, Rudy Masuswo Purwoko, Ria Faizah, Agus
Setyawan
Journal Code: jpperikanangg140031
