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All Journal Quagga Jurnal Ilmiah Pendidikan Pancasila dan Kewarganegaraan Jurnal Biologi Tropis Bioma : Jurnal Biologi Indonesia Journal of Humanities and Social Studies Jurnal Pengabdian Masyarakat Ilmu Keguruan dan Pendidikan (JPM-IKP) Jurnal Sains dan Teknologi Journal Of Biology Education Research (JBER) Berita Biologi
Ainy, Noer Sarifah
Pendidikan Biologi, STKIP Arrahmaniyah
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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.
Morphological and Morphometric Analysis of Reticulated Python (Malayopython reticulatus) Crossbreeds within the Snake Enthusiast Community Adhaeni, Nicky Utami; Mujadid, Iqbal; Hadi, Nestiyanto; Ainy, Noer Sarifah; Supriyadi, Erwandi
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): in Progress
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i3.12317

Abstract

This study aimed to analyze the morphological and morphometric characteristics of hybridized reticulated pythons (Malayopython reticulatus) in the Tabu Indonesia Community, Cimanggis–Depok. The research used a quantitative descriptive method through direct observation of morphological characters and morphometric measurements of hybrid pythons. The observed characters included color patterns, head shape, scale arrangement, body length, tail length, and the number of certain scales. The results showed variations in the morphological and morphometric characteristics of hybrid reticulated pythons, particularly in dorsal patterns, color intensity, body size, and the number of ventral and subcaudal scales. These variations were influenced by genetic combinations of the parent stock and environmental factors during captivity. This study concluded that hybridized reticulated pythons in the Tabu Indonesia Community, Cimanggis–Depok possess relatively high phenotypic diversity. The results are expected to provide scientific information regarding the morphological and morphometric characteristics of hybrid reticulated pythons in Indonesia.
Co-Authors Adhaeni, Nicky Utami Andayani, Noviar Hadi, Nestiyanto Harinaldi . Islahuddin, Islahuddin LUTHFIRALDA SJAHFIRDI Mufti Petala Patria Muh Rais Mujadid, Iqbal Nisyawati Nisyawati Nisyawati Nisyawati Nurhidayat Pudjiastuti, Sri Rahayu Supriyadi, Erwandi Windi Lediawati Wisnu Wardhana Wisnu Wardhana