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Geospatial analysis for prediction of potential fishing zones in the Banggai Waters using hydroacoustic data and satellite remote sensing

Authors :
Rabbi Muhammad Fiqri Abdi
Manik Henry M.
Somantri Lili
Priatna Asep
Jaya Indra
Source :
BIO Web of Conferences, Vol 106, p 04009 (2024)
Publication Year :
2024
Publisher :
EDP Sciences, 2024.

Abstract

Banggai waters are a strategic area rich in fish resources and a source of livelihood for most of the local population. Mapping fish stocks is important to ensure the sustainability of fishing in the area. One of them uses hydroacoustic data and satellite imagery to provide more comprehensive results on fish stocks and more accurate predictions of potential fishing zones. This study will spatially estimate fish density in Banggai waters using hydroacoustic data and investigate the distribution of chlorophyll-a and sea surface temperature using Himawari-8 imagery. Hydroacoustic data processing will produce target strength (TS) and volume backscatter strength (Sv) values to determine the value and distribution of fish density. Meanwhile, ZPPI results are obtained from the overlay of chlorophyll-a and sea surface temperature. From the results of mapping the potential fishing zone, the high category has the highest percentage of 43%, low 28% and medium 29%. The ZPPI point distribution map then shows the concentration of ZPPI points in the southern Banggai waters. The fish density distribution map shows that the spatial distribution tends to be around the coast of Banggai Peninsula, dominated by small and very small fish categories. Correlation of fish density point distribution with ZPPI results and oceanographic parameters has a positive influence on fish density from GAM modelling.

Details

Language :
English, French
ISSN :
21174458
Volume :
106
Database :
Directory of Open Access Journals
Journal :
BIO Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.17ceb77c8dd94fcdb603dca7cb307053
Document Type :
article
Full Text :
https://doi.org/10.1051/bioconf/202410604009