A regional fisheries ecological footprint of Jakarta Bay (An analysis of carrying capacity based on primary production requirement)

Abstract

This research aimed to analyze the sustainability of fisheries in the bay based on ecological footprint (EF) and bio-capacity (BC). The used methods were ecological footprint and biocapacity approaches based on primary production requirement (PPR). Data were derived by surveying main caught fish of small fishermen as a main basis of calculation and the trophic levels were determined by fish base data. The calculation of BC also followed the ecological footprint calculation pattern where its estimation was according to the water types. Results of this research exhibit that all water system types possess the value of EF is higher than the EC value. The average values of EF in tropical shelves (TS) and non-tropical shelves (non-TS), and C&C are 64708 km2, 6474 km2, and 8148 km2, respectively. Whilst, the value of BC is around 2707 km2 or only about 30% from all total waters of Jakarta Bay that is able to support fishing activities. Furthermore, the values of EF per-capita for TS and non-TS, C&CS, and BC, are 6.04 km2/fisherman, 0.71 km2/fisherman, 0.42 km2/fisherman, and 0,21 km2/fisherman, respectively. These counting results signify that the values of ecological footprint (EF) are higher than the values of bio-capacity (BC). This result infers that fishing sustainability in Jakarta Bay has delivered a heavy burden.