Potential of Sustainable Fishery Resources at Giam Siak Kecil-Bukit Batu Biosphere Reserve, Riau Province, Indonesia

Abstract

Fisheries are fundamental part of human activities. Sustainable fishing is an important aspect in maintining the fishery resources for the future generation. The main objective of this study is to estimate the maximum sustainable yield (MSY) of the fishing grounds for the sustainable harvesting. This study deploy the approximate estimation of abundance (biomass) and potential estimation of a type or group of fish species based on the analysis of production surplus to determine the sustainability of maximum catch rate. Results of the research identified about 35 species from the 17 families of fish. Based on the MSY calculation using the Schaefer method with a long line standard, the fish utilization status is in overfishing condition status at all sampling points, with the value above 98% above the standard capture limit of 70%. The results of the Schaefer model provide the baseline information on MYS for the freshwaters fish, which could be used as the basis for future fishery assessment and management of this biosphere reserve.

Shifting conflict into collaboration: peatland fires mitigation in the biosphere conservation transition zone in Sumatra, Indonesia

“…The current study closely observed conflict over peat water sharing, which resulted in annual peatland fires in the landscape of UNESCO's Giam Siak Bukit Batu (GSBB) biosphere conservation area in Sumatra, Indonesia. The GSBB landscape is divided into three regions; (1) the core zone (178 722 ha); (2) the buffer zone (222 425 ha); and (3) the transition zone (304 123 ha), in which about 90% of those areas are tropical peatland (Titisari et al 2019). The core zone is a natural peat swamp forest, home to dozens of mammal species, hundreds of bird species, 13 species of fish, eight species of reptiles, and 52 endangered and protected plants (Titisari et al 2019).…”

“…The GSBB landscape is divided into three regions; (1) the core zone (178 722 ha); (2) the buffer zone (222 425 ha); and (3) the transition zone (304 123 ha), in which about 90% of those areas are tropical peatland (Titisari et al 2019). The core zone is a natural peat swamp forest, home to dozens of mammal species, hundreds of bird species, 13 species of fish, eight species of reptiles, and 52 endangered and protected plants (Titisari et al 2019). Timber companies mostly occupy the buffer zone (upstream), while the transition zone (downstream) is reserved for community forestry and settlements where more than 10 villages exist in the area (Fig.…”