Validation of potential fishing zone forecast using experimental fishing method in Tolo Bay, Central Sulawesi Province

Asean-Fen International Fisheries Symposium - 2017

Rintaka, W.E.^1 ; Susilo, E.^1

Institute for Marine Research and Observation, Ministry of Marine Affair and Fisheries, Jl. Baru Perancak, Jembrana - Bali, Indonesia^1

关键词: Fishing activities;    Fishing ground;    Forecast systems;    High probability;    Remote sensing images;    Single images;    Southeast monsoon;    Thermal fronts;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/137/1/012041/pdf
DOI  :  10.1088/1755-1315/137/1/012041

来源: IOP

【 摘 要 】

The national scale of Indonesian Potential Fishing Zone (PFZ) forecast system has been established since 2000. Recent times this system use Single Image Edge Detection algorithm to automatically identify thermal front from remote sensing images. Its generate two fishing ground/FG criteria: FG (high probability) and potential fishing ground/PFG (medium/low probability). To quantify the accuracy of this algorithm, an experimental fishing/EF was carried out in Tolo Bay, Central Sulawesi Province at September 2016 the late southeast monsoon period by using a pole and line fishing vessel. Four fishing activities (P1, P2, P3, and P4) were conducted during this study at a different location nearby the PFZ forecast position, two of them had good results. Based on distance measurement, these locations P1 and P4 were associated with PFZ forecast position. They were associated with PFG and FG criteria. The distance between EF to P1 and P4 were 9.7 and 6.69 nautical miles. The amount of catch for each location was 850 and 900 kg, respectively. The other locations P2 and P3 were also associated with PFG criteria, but there was no catch. We conclude that the number of the catch is influenced by the distance from PFZ forecast position and criteria.