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All Journal Jurnal Biologi Tropis Journal Of Biology Education Research (JBER) Berita Biologi
Mujadid, Iqbal
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology

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REINVENTARISASI DAN ANALISIS LAJU PENINGKATAN DIVERSITAS IKAN DI SUNGAI CILIWUNG Mujadid, Iqbal; Ainy, Noer Sarifah; Hadi, Nestiyanto; Nurhidayat
Berita Biologi Vol 24 No 2 (2025): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/berita_biologi.2025.4921

Abstract

Penelitian ini bertujuan untuk memperbaharui data kelimpahan ikan di Sungai Ciliwung. Metode sampling dilakukan melalui pengambilan ikan dari hulu ke hilir dalam 6 segmen, dengan masing-masing segmen terdiri dari 3 stasiun, dengan total 18 stasiun penelitian dan panjang total aliran Sungai Ciliwung yang diteliti adalah 9 km dari 120 km. Penelitian dilakukan pada 2023-2024. Ditemukan 37 spesies ikan dari 16 famili dan 8 ordo. Lima spesies dengan kelimpahan tertinggi adalah ikan sapu-sapu (Pterygoplichthys pardalis), ikan cere (Gambusia affinis), ikan baung (Hemibagrus nemurus), ikan guppy (Poecilia reticulata), dan ikan hampala (Hampala macrolepidota). Sebanyak 26 spesies merupakan ikan asli dan 11 spesies ikan eksotik. Ditemukan peningkatan perubahan tren kelimpahan ikan dari sebelumnya tren menurun pada 100 tahun terakhir, menjadi naik pada tahun 2023. Terdapat kenaikan 26% atau 10 spesies ikan asli yang baru ditemukan pada penelitian ini yaitu paray (Rasbora argyrotaenia), nilem (Osteochillus vittatus), lalawak (Barbonymus balleroides), soro (Neolissochillus soro), ramokasang emas (Pangio doriae), senggal (Hemibagrus planiceps), lendi (Clarias nieuhofii), cupang sawah (Trichopsis vittata), tembakang (Helostoma teminckii), tarpon (Megalops cyprinoides). Terdapat tren kenaikan ikan ekostis dari penelitian sebelumnya (21%) dengan ditemukannya 7 spesies ikan eksotis yaitu ikan mas (Cyprinus carpio), ikan lele dumbo (Clarias gariepinus), Brushmouth pleco (Ancistrus temminckii), ikan golsom (Andonoacara rivulatus), ikan red devil (Amphilopus labiatus), ikan cere (Gambusia affinis), ikan kaca-kaca (Prambassis siamensis).
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 Ainy, Noer Sarifah Hadi, Nestiyanto Harinaldi . LUTHFIRALDA SJAHFIRDI Mufti Petala Patria Nurhidayat Supriyadi, Erwandi