Fishing Grounds Identification in Jatigede Reservoir Based on Remote Sensing Analysis of Surface Temperature and Chlorophyll-a

Et Al., Herawati

doi:10.21608/ejabf.2025.407759

Fishing Grounds Identification in Jatigede Reservoir Based on Remote Sensing Analysis of Surface Temperature and Chlorophyll-a

Author

Herawati et al.

10.21608/ejabf.2025.407759

Abstract

Jatigede Reservoir which is located in Sumedang Regency, West Java, serves as a multifunctional site for power generation, irrigation, and fishing activities. The identification of potential fishing grounds within the reservoir relies on key indicators such as chlorophyll-a concentration and surface temperature. This study aimed to investigate the spatial distribution of surface temperature and chlorophyll-a concentrations in Jatigede Reservoir, using data obtained from Landsat 8 L1 satellite imagery from January to December 2021. The acquired data were processed using ArcGIS, involving the overlay of temperature and chlorophyll-a layers for further analysis. The research findings revealed notable variations in surface temperature, with the highest recorded temperature reaching 34°C and the lowest measuring 20°C. Moreover, chlorophyll-a concentrations ranged between 0.8 and 2mg/ m³ in the reservoir. Image processing results indicated that the area below the reservoir exhibited significant potential as an optimal fishing ground. Specifically, three distinct zones were identified as potential fishing grounds during March, September, and December, while four zones were recognized in May, July, and August. In contrast, no potential fishing zones were detected during January, February, April, June, October, and November. This study provides valuable insights into the spatial dynamics of surface temperature and chlorophyll-a concentrations in Jatigede Reservoir, facilitating the identification of optimal fishing grounds and aiding in effective resource management strategies for sustainable small-scale fisheries.

Fishing Grounds Identification in Jatigede Reservoir Based on Remote Sensing Analysis of Surface Temperature and Chlorophyll-a

Keywords