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All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Transformasi: Jurnal Pengabdian Masyarakat Prosiding Seminar Biologi Jurnal Pendidikan Biologi Indonesia Jurnal Florea Jurnal Akuatika Indonesia Populis : Jurnal Sosial dan Humaniora Omni-Akuatika Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Scripta Biologica Jurnal Penyuluhan Perikanan dan Kelautan Dinamika Journal : Pengabdian Masyarakat BioEksakta : Jurnal Ilmiah Biologi Unsoed JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) SAINSMAT: Journal of Applied Sciences, Mathematics, and Its Education Jurnal Riset Rumpun Ilmu Hewani (JURRIH) Jurnal MAIYAH Journal of Advanced Health Informatics Research Proceeding Seminar Nasional IPA Prosiding Seminar Nasional Biologi LIMNOTEK Biosaintifika: Journal of Biology & Biology Education Genbinesia Journal of Biology Jurnal Arsitektur Lansekap Biodiversitas Journal of Biological Diversity
Siti Rukayah
Universitas Jenderal Soedirman
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Veterinary Other

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Feeding ecology of Neoarius leptaspis in the Rawa Biru Lake, Merauke, Indonesia Dwi Nugroho Wibowo; SITI RUKAYAH; NUR LAILA RAHAYU; NORCE MOTE
Biodiversitas Journal of Biological Diversity Vol. 23 No. 3 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230317

Abstract

Abstract. Wibowo DN, Rukayah S, Wahayu NL, Mote N. 2022. Feeding ecology of Neoarius leptaspis in the Rawa Biru Lake, Merauke, Indonesia. Biodiversitas 23: 1327-1335. A few studies have been carried out on Neoarius leptaspis (Bleeker, 1862), however, its feeding ecology was not examined, especially for the sample from Rawa Biru Lake, Merauke, Papua, Indonesia. Therefore, this study aims to analyze the feeding ecology of N. leptaspis at 8 sampling sites in the lake, which were sampled in the morning and evening. The parameters observed were natural food diversity, mouth width ratio, intestine length ratio, stomach fullness and content, preponderance index, and electivity index. The result showed that 25 plankton species were observed in the waters. Neoarius leptaspis has a mouth width ratio of approximately 75% of head width. The full stomach was observed in the samples collected in the evening, where the diets were dominated by animal materials as indicated by the indexes of preponderance and electivity. The mouth width ratio, feeding periodicity, intestine length, and dominant diets were similar to the previous reports on the same species from other regions. This showed that N. leptaspis is a predatory fish species based on the feeding ecology data, which provides essential information for fisheries and conservation.
Fish Community Assessment in Serayu Moveable Dam Post-Catastrophic Mortality Dwi Nugroho Wibowo; Siti Rukayah; Chukwudi Michael Ikegwu
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 3 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i3.22928

Abstract

Catastrophic mortality occurred in the fish community at Serayu Movable Dam in 2022. The phenomenon was caused by severe water quality alteration due to sediment flushing from Panglima Besar Soedirman Dam. After the incident, the fish community in the reservoir has never been evaluated. This study aimed to assess the fish community status in the Serayu Movable Dam post-catastrophic mortality in 2022. The study was conducted using a survey method, and fish samples were collected three times at six sampling sites at an interval of two weeks. Fish identification was done using the identification key in the references. Various community and water quality parameters were measured. The data obtained were analyzed descriptively by comparing them with standards in the literature. A total of 27 species were identified with a richness index of 4.564, relative abundance of 0.037, diversity index of 2.111, evenness index of 0.693, and dominance index of 0.259. The data proved that the fish community in Serayu Movable Dam has recovered after two years of catastrophic mortality in 2022. It could be due to the characteristic of the riverine ecosystem that can revert due to the continuous replacement of water from various tributaries that flow into the Serayu River in the upstream part of the Serayu Movable Dam, as shown by good water quality. It can be concluded that high ichthyofauna diversity was observed in the Serayu Moveable Dam post-catastrophic mortality. The data are essential scientific bases for sediment flushing management at P.B. Soedirman Dam and management of freshwater fish community in Serayu Movable Dam. 
Growth and Exploitation Rate of Mystus nigriceps Siti Rukayah; Windiarini Lestari; Agus Nuryanto; Hanan Hassan Alsheikh Mahmoud
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 3 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i3.32684

Abstract

Mystus nigriceps is among the bagrid fish species that live in freshwater ecosystems, including Cicingguling River, Kebumen Regency, Central Java, Indonesia. Despite the economic importance and exploitation for food, the fish is rarely studied. Meanwhile, studies on the growth pattern and exploitation rate of M. nigriceps in the Cicingguling River are important because the population is also affected by river fragmentation due to reservoir development. Therefore, this study aims to analyze the growth pattern and exploitation rate of M. nigriceps in the Cicingguling River. Sampling was carried out using the purposive random sampling method in the Cicingguling River. A total of 9 stations were divided into 3 zones for 1 year, with a frequency of 12 times and an interval of once a month. The results showed that a length-weight relationship had an average b-value of 3.11, indicating a positive allometric pattern (b>3). The condition factor of female M. nigriceps (2.404) was higher than that of male fish (2.06). Total mortality (Z) was estimated at 4.85 per year, consisting of natural mortality (M) at 3.59 per year and fishing mortality (F) at 1.26 per year. These values suggest that the mortality of M. nigriceps is primarily driven by natural causes rather than fishing pressure. The exploitation rate was 0.26 per year, which is relatively low as it remains below the optimum threshold (Eoptimum = 0.5). This information is essential for fisheries management as a basis for M. nigriceps conservation in the Cicingguling River
Co-Authors Agus Nuryanto Agus Nuryanto Agus Nuryanto Agus Nuryanto Agus Nuryanto Agus Nuryanto Agusfiana, Ega Dwi Al-Hakim, Rosyid Anggararatri, Yasinta Ani Widyastuti Asrul Sahri Siregar Asrul Sahri Siregar Aulia Maya Firanti Ayesha Hafizh Gunara Cahiadir Ali Akbar Chukwudi Michael Ikegwu Diana Retna Utarini Suci Rahayu, Diana Retna Utarini Suci Dwi Nugroho Wibowo Dwi Nugroho Wibowo Dwi Nugroho Wibowo Elly Tuti Winarni Elsa Melisa Erie Kolya Nasution Erie Kolya Nasution Erie Kolya Nasution Erie Kolya Nasution Esa Rinjani Cantika Putri Fajarani Fitriasih Farida Nur Rachmawati Fitri Nurcahyani G Manggara HANAN HASSAN ALSHEIKH MAHMOUD Hazmi, Muhammad Zikri Hexa Apriliana Hidayah Indarmawan Indarmawan Isdy Sulistyo Isdy Sulistyo Isdy Sulistyo Islami Annisa Kusbiyanto Kusbiyanto Kusuma, Tegar Lestari, W LK Sari M. Husein Sastranegara, Mahmmoud Hussein Abdul Rahman Moh Husein Sastranegara Moh. Husein Sastranegara Muslih Muslih Muslih Nadhilla Haura Wahyudiana Nasution, Erie niki oktavia angkasawan NORCE MOTE Norman Arie Arie Prayogo Nuning Vita Hidayati Nur Anisa NUR LAILA RAHAYU Pulungsari, Anastasia Endang Putri, Esa Rizaldi Rizaldi Rosyid Ridlo Al-Hakim Rosyid Ridlo Al-Hakim Sastranegara, Moh. Husien Setijanto Setijanto Sri Riani Sri Riani Suhestri Suryaningsih Sukanto Sukanto Sukirno Sukirno Tutilah Jamilatun Unsani Lutfiana W Lestari W Lestari W Lestari W Lestari W. Lestari W. Lestari Windiariani Lestari Windiariani Lestari Windiarini Lestari Windiriani Lestari