Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, Indonesia

This research was conducted in the arowana golden red Conservation Area (AgrCA) in Riau Province Rokan Hulu Regency, Sumatra, Indonesia from 2020 to 2023. The primary objective was to elucidate the population structure of arowana golden red in the midst of ongoing habitat degradation resulting from...

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Main Authors: Arief Anthonius Purnama, Tsugiyuki Masunaga
Format: Article
Language:English
Published: Bogor Agricultural University 2025-01-01
Series:Hayati Journal of Biosciences
Online Access:https://journal.ipb.ac.id/index.php/hayati/article/view/60067
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author Arief Anthonius Purnama
Tsugiyuki Masunaga
author_facet Arief Anthonius Purnama
Tsugiyuki Masunaga
author_sort Arief Anthonius Purnama
collection DOAJ
description This research was conducted in the arowana golden red Conservation Area (AgrCA) in Riau Province Rokan Hulu Regency, Sumatra, Indonesia from 2020 to 2023. The primary objective was to elucidate the population structure of arowana golden red in the midst of ongoing habitat degradation resulting from land use changes in AgrCA. Land use changes were analyzed by satellite imagery through the QGIS application. We collected population sampling data for arowana golden red by using 'fish net', 'fish trap', and 'fish scoop-net'. A comparison of satellite images taken in 2017 and 2021 revealed a reduction in swamp area by 664 ha (from 921 to 257 ha) and a decrease in swamp forest by 116 ha (from 264 to 148 ha). The conversion of swamp and swamp forests into oil palm plantations within the AgrCA has significantly diminished the natural habitat of the arowana golden red. Although there has been decreasing in swamp and swamp forests in AgrCA, the water quality in the AgrCA has remained suitable for the life of the arowana golden red. The population of arowana golden red was found to be 14-44 individuals year-1 in 2021-2023 with various sizes. Arowana golden red is most prevalent during the rainy season (July-December). Preserving the remaining swamp and swamp forests is paramount, representing a top priority. Immediate ex-situ conservation efforts are imperative, taking preemptive measures in case the arowana golden red can no longer inhabit its natural habitat.
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spelling doaj-art-7c20c441f4dc458eb9a4736fd951ef9c2025-01-08T09:00:37ZengBogor Agricultural UniversityHayati Journal of Biosciences1978-30192086-40942025-01-0132210.4308/hjb.32.2.516-527Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, IndonesiaArief Anthonius Purnama0Tsugiyuki Masunaga1Faculty of Life and Environmental Sciences, Shimane University, Matsue 6900823, Shimane prefecture, Japan. United Graduate School of Agricultural Sciences (UGSAS), Tottori University, Tottori-shi 6808553, Tottori Prefecture, Japan. Faculty of Teacher Training and Education, University of Pasir Pengaraian, Rokan Hulu Regency 28557, Riau Province, IndonesiaFaculty of Life and Environmental Sciences, Shimane University, Matsue 6900823, Shimane prefecture, Japan. United Graduate School of Agricultural Sciences (UGSAS), Tottori University, Tottori-shi 6808553, Tottori Prefecture, Japan This research was conducted in the arowana golden red Conservation Area (AgrCA) in Riau Province Rokan Hulu Regency, Sumatra, Indonesia from 2020 to 2023. The primary objective was to elucidate the population structure of arowana golden red in the midst of ongoing habitat degradation resulting from land use changes in AgrCA. Land use changes were analyzed by satellite imagery through the QGIS application. We collected population sampling data for arowana golden red by using 'fish net', 'fish trap', and 'fish scoop-net'. A comparison of satellite images taken in 2017 and 2021 revealed a reduction in swamp area by 664 ha (from 921 to 257 ha) and a decrease in swamp forest by 116 ha (from 264 to 148 ha). The conversion of swamp and swamp forests into oil palm plantations within the AgrCA has significantly diminished the natural habitat of the arowana golden red. Although there has been decreasing in swamp and swamp forests in AgrCA, the water quality in the AgrCA has remained suitable for the life of the arowana golden red. The population of arowana golden red was found to be 14-44 individuals year-1 in 2021-2023 with various sizes. Arowana golden red is most prevalent during the rainy season (July-December). Preserving the remaining swamp and swamp forests is paramount, representing a top priority. Immediate ex-situ conservation efforts are imperative, taking preemptive measures in case the arowana golden red can no longer inhabit its natural habitat. https://journal.ipb.ac.id/index.php/hayati/article/view/60067
spellingShingle Arief Anthonius Purnama
Tsugiyuki Masunaga
Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, Indonesia
Hayati Journal of Biosciences
title Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, Indonesia
title_full Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, Indonesia
title_fullStr Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, Indonesia
title_full_unstemmed Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, Indonesia
title_short Habitat Reduction and Population Structure of Endangered Asian Arowana (Scleropages formosus) Golden Red in Riau Sumatra, Indonesia
title_sort habitat reduction and population structure of endangered asian arowana scleropages formosus golden red in riau sumatra indonesia
url https://journal.ipb.ac.id/index.php/hayati/article/view/60067
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