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All Journal HAYATI Journal of Biosciences MEDIA KONSERVASI Jurnal Sosioteknologi Jurnal Ilmiah Pendidikan Pancasila dan Kewarganegaraan Jurnal Penelitian Pendidikan IPA (JPPIPA) AL-HAYAT: Journal of Biology and Applied Biology JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Jurnal Kedokteran Hewan Journal Of Biology Education Research (JBER) Biodiversitas Journal of Biological Diversity
LUTHFIRALDA SJAHFIRDI
Department Of Biology, Faculty Of Mathematics And Natural Sciences, Universitas Indonesia, Depok, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Veterinary

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Diversity of freshwater fish in Jabodetabek (rivers and lakes), Indonesia NOER SARIFAH AINY; LUTHFIRALDA SJAHFIRDI; MUFTI PATRIA PETALA; HARINALDI HARINALDI
Biodiversitas Journal of Biological Diversity Vol. 27 No. 5 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270518

Abstract

Abstract. Ainy NS, Sjahfirdi L, Petala MP, Harinaldi. 2026. Diversity of freshwater fish in Jabodetabek (rivers and lakes), Indonesia. Biodiversitas 27 (5): d270518. https://doi.org/10.13057/biodiv/d270518. In the Jabodetabek (Jakarta, Bogor, Depok, Tangerang and Bekasi) metropolitan area of Indonesia, this study assessed the structure of freshwater fish communities in interconnected river and lake ecosystems. The focus was on diversity, native-alien composition, and spatial homogenization along upstream-downstream river gradients and inlet-outlet lake zonation. From August to December 2024, fish were collected from three rivers (Ciliwung, Cisadane, and Cileungsi) and three lakes (Tonjong, Tunggilis, and Suradita) using standardized plots and various types of fishing gear. The data were then analyzed for species richness, abundance, diversity, dominance, PERMANOVA, and beta dispersion. Rivers had more species (38) and individuals (2,471) than lakes (27 species and 1,375 individuals), but they also had a higher proportion of alien fish (64.90%) than lakes (50.20%). Oreochromis niloticus and Pterygoplichthys pardalis were the dominant invasive species in rivers, especially in the middle and downstream sections. Oreochromis niloticus and Amphilophus labiatus were the dominant invasive species in lakes, particularly in inlet zones and disturbed areas. Lakes showed more pronounced cross-zone biotic homogenization, whereas rivers exhibited higher spatial turnover. However, some degraded areas also showed signs of homogenization. The findings suggest that biological invasions are reducing the complexity of Jabodetabek’s freshwater ecosystems and pushing native species into less disturbed habitats. To reduce the risk of reinvasion and protect freshwater biodiversity, management should focus on controlling the most widespread invasive species, preventing new introductions, restoring habitats, and protecting existing native fish refuges.
Spatial Analysis of Fish Diversity, Evenness, and Dominance During the Seasonal Transition Period for Ecosystem Health Assessment Ainy, Noer Sarifah; Sjahfirdi, Luthfiralda; Patria, Mufti Petala; Harinaldi, Harinaldi; Mujadid, Iqbal
Journal Of Biology Education Research (JBER) Vol. 7 No. 1 (2026): JBER (Journal Of Biology Education Research), Vol.7 No.1 (2026)
Publisher : Program Studi Pendidikan Biologi FKIP Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55215/jber.v7i1.105

Abstract

Freshwater ecosystems, particularly small lakes, play a crucial role in maintaining biodiversity and supporting essential ecological functions, yet they are highly vulnerable to environmental disturbances. Small lakes are increasingly exposed to anthropogenic pressures such as land use change, nutrient enrichment, and declining water quality, making biological assessment essential for detecting ecosystem degradation. This study aimed to identify segment level patterns of fish diversity, evenness, and dominance during the seasonal transition period and to determine whether these patterns can distinguish relatively balanced ecological zones from priority stress zones for ecosystem management. An ecologically based quantitative descriptive approach was applied using spatial zoning of inlet, middle, and outlet segments. Fish assemblages were assessed using the Shannon–Wiener diversity index (H′), Evenness (E), and Simpson’s dominance index (D). The results revealed clear spatial variation in community structure among sampling segments. Some systems exhibited strong internal ecological gradients characterized by decreasing diversity and increasing dominance toward downstream segments, whereas others showed more transitional or relatively uniform patterns. Community composition analysis indicated assemblage compression and potential biotic homogenization driven by a limited number of dominant taxa. Exploratory analyses further suggested that higher alkalinity, hardness, and chlorine levels were associated with lower diversity and greater dominance. These findings demonstrate that fish community indices provide effective biological indicators of ecosystem condition and can support spatially targeted monitoring, conservation, and management of small freshwater ecosystems. The study also highlights the importance of incorporating spatially explicit community assessments into ecosystem health evaluation frameworks.
Co-Authors Abinawanto Advent Tri Joy Simamora Ady Suryawan Afifa Hasna Ainy, Noer Sarifah Amelia Hana Ananda, Syafira Dwi Andayani, Noviar Anisa Putri Sukmaningrum Anita Mayasari Anom Bowolaksono ARI YANA Asmarani Kusumawati Ayu Mulia Sundari Bambang Purwantara Claude Mona Airin Dondin Sajuthi ERIC HAYES Firmanza, Nasya Aqila GENOVEVA KIRANAPUTRI Hadi S Alikodra Hadi, Nestiyanto Hana Nabilah Hapsari Indriastuti Harinaldi . HARINALDI HARINALDI HERA MAHESHWARI Ilmia Rosame Islahuddin, Islahuddin Jatna Supriatna LESTY YULIETA ANGGARSARI LIGAYA ITA TUMBELAKA MARIZAL MARIZAL Mozes R. Tolihere Mufti Petala Patria Mujadid, Iqbal Nauhal Nazri Halim Nestiyanto Hadi Nikki Aldi Nikki Aldi, Nikki NOER SARIFAH AINY Noverita Dian Takarina Oriza Savitri Ariantie Oriza Savitri Ariantie Pudji Astuti Pudji Astuti Pudji Astuti Pudji Astuti PUDJI ASTUTI Pudjiastuti, Sri Rahayu Putri Krida Gita P. Putri Krida Gita P. Rahma Suryaningsih Raisa Tatum Saka Randall C Kyes Reviany Widjajakusuma Reviany Widjajakusuma SADMOKO KUSUMO PRIYANTO Saka, Raisa Tatum Sarmin - Siti Nursheena Mohd Zain Siti Nursheena Mohd Zain Slamet Widiyanto Tatang Mitra Setia Tatang Mitra Setia Tuty Laswardi Yusuf Wendi Prameswari