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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
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Community structure of zooplankton in Plawangan Timur Segara Anakan Cilacap Agusfiana, Ega Dwi; Siregar, Asrul Sahri; Hidayati, Nuning Vita; Rukayah, Siti
Genbinesia Journal of Biology Vol. 2 No. 1 (2022): November 2022
Publisher : Generasi Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55655/genbinesia.v2i1.21

Abstract

Plawangan Timur, located in the Segara Anakan Lagoon, Cilacap, is an estuary with many rivers flowing into it, and has a free connection with the open seas. Plawangan Timur waters suffer increased environmental pressures caused by anthropogenic activities, resulting in pollution, degradation of water bodies, and ecological changes. Ecological changes related to the physical and chemical estuary environment have been considered as major drivers of significant fluctuations in the zooplankton community structure. In order to manage and mitigate the effects of these changes, a prediction of their potential impacts on zooplankton communities is needed. This study aimed to determine the zooplankton community, which includes the abundance index, diversity index, evenness index and dominance index. The method used is a survey method with purposive random sampling at five stations. The F test and the Lackey Drop Microtransect Counting method were used to determine the abundance of zooplankton. The results showed that the abundance of zooplankton ranged from 113-598 ind/L (low); zooplankton diversity index ranged from 1.83-2.03 (medium); zooplankton evenness index ranged from 0.79-0.85 (high) and zooplankton dominance index ranged from 0.166-0.211 (low). Based on PP RI Number 22/2021, the physico-chemical factors of the Plawangan Timur waters are still at the safe concentration for zooplankton, except for the brightness, turbidity, Total Suspended Solid (TSS) and salinity.
Study of population dynamics silver rasbora (Rasbora argyrotaenia Bleeker, 1849) in PB Soedirman Reservoir, Banjarnegara Anggararatri, Yasinta; Muslih; Rukayah, Siti; Lestari, W.
Genbinesia Journal of Biology Vol. 2 No. 2 (2023): March 2023
Publisher : Generasi Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55655/genbinesia.v2i2.33

Abstract

Silver rasbora (Rasbora argyrotaenia Bleeker, 1849) is one of the native species found in Panglima Besar (PB.) Soedirman Reservoir. High economic value of silver rasbora causes fishermen to tend overfishing. This over-exploitation threatens the native species of fish. Therefore, this study aims to determine several parameters of fish population dynamics so that they become the basis for fisheries management. Sampling was carried out at the PB. Soedirman Reservoir in November 2021, January 2022, and March 2022 using a survey method. The result of this research is, the population of silver rasbora was 3097 individuals dominated by male and small-size fish 0.5-8.5 cm. Length and weight relationship obtained b value <3 which means it is negative allometric. The condition factor ranged from 1.005 to 1.068. Total mortality value (Z) 6.21 per year, natural mortality (M) 1.69 per year, fishing mortality (F) 4.52 per year, with exploitation rate (E) 0.73 per year. The total length of silver rasbora fish obtained ranged from 0.5 to 8.5 cm. The maximum length (L∞) = 12.93 cm and K = 0.62 per year with the Von Bertalanffy growth equation, Lt = 12.93 (1-e(-0.62(t-0.3291))). The yield value per recruit analysis showed that the optimum exploitation was 0.224 and the current exploitation rate was 0.73. The population of silver rasbora was over-exploitation, especially in small-size fish.
PELUANG DAN TANTANGAN KONSERVASI BERBASIS EKOWISATA Al Hakim, Rosyid Ridlo; Rukayah, Siti; Nasution, Erie Kolya
Proceeding Seminar Nasional IPA 2022
Publisher : LPPM UNNES

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Upaya konservasi biodiversitas yang memadukan unsur lingkungan dan wisata dewasa ini menjadi tren baru dalam bidang konservasi. Namun, ada kalanya dalam keberhasilan upaya konservasi berbasis ekowisata mengalami kendala. Studi ini bertujuan untuk memberikan penjelasan mengenai peluang dan tantangan dalam upaya konservasi yang berbasis padaekowisata. Metode penelitian yang digunakan berupa metode review artikel. Tahap-tahapan terdiri atas studi literatur dari basis data publikasi ilmiah, identifikasi judul, skrining abstrak, pemilihan naskah lengkap, dan ulasan review. Hasil review menunjukkan tren publikasi ilmiah dalam bidang konservasi sudah mulai mengarah pada konsep ekowisata, dengan memadukan introduksi lingkungan di sekitarnya. Meskipun terdapat peluang dan tantangan yang kerap kali dijumpai, tujuan utama penyelenggaraan konservasi menjadi dorongan tersendiri bagi pengelola kawasan konservasi berbasis ekowisata untuk meningkatkan nilai konservasi yang berkelanjutan sekaligus menjadikan sarana dalam mendapatkan daya tarik wisatawan yang akan mendapatkan pengalaman tersendiri terhadap konsep lingkungan yang alami.
Elemen pembentuk citra kota dalam kawasan stasiun kereta api di Kota Semarang Unsani Lutfiana; Siti Rukayah
Jurnal Arsitektur Lansekap Vol. 11, No. 1 April 2025
Publisher : Prodi Arsitektur Lanskap, Fakultas Pertanian, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JAL.2025.v11.i01.p10

Abstract

Transportation is an important part of urban development so that the existence of transportation service places is also quite vital, one of which is the train station area. The train station area has its own characteristics, character, and identity so that it can shape the image of the area. According to Kevin Lynch (1960), a city image contains elements that form the city's image in the form of paths, edges, district s, nodes, and landmarks. Semarang City has two main stations, namely the Semarang Tawang Station area and the Semarang Poncol Station area. The existence of the two train station areas is important so that it is necessary to understand theelements that form the city's image in order to obtain clarity on its identity and character. The research method used is qualitative research in the form of a case study approach with primary and secondary data. The results of this study are in the form of identification of elements that form the city's image in the Semarang Tawang Station area and the Semarang Poncol Station area, where elements are still found that are less appropriate and can still be improved or developed in order to strengthen the identity and character of the train station area
Population dynamics and human–Primate interactions at a cultural heritage forest site: Implications for conservation education Siti Rukayah; Sri Riani; Nadhilla Haura Wahyudiana; Esa Rinjani Cantika Putri; Rosyid Ridlo Al-Hakim; Erie Kolya Nasution; Fajarani Fitriasih; Mahmmoud Hussein Abdul Rahman
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol. 11 No. 3 (2025): NOVEMBER
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v11i3.41038

Abstract

Long-tailed macaques represent a compelling model for ethnoprimatological research in human-influenced and culturally significant ecosystems. This study evaluated population dynamics, social structure, and behavior of Macaca fascicularis inhabiting a 0.8-hectare secondary forest enclave surrounding a religious heritage site in Central Java, Indonesia. Three two-week census periods conducted from 2021 to 2023 documented temporal fluctuations in troop size (96–125 individuals), subgroup formation, and behavioral responses associated with provisioning, resource availability, and human presence. These demographic and behavioral patterns highlight the adaptive strategies that enable macaques to persist in fragmented cultural landscapes, while also revealing pressures linked to crowding, reliance on anthropogenic foods, and occasional conflict with visitors and surrounding communities. Beyond their ecological relevance, the findings provide evidence-based insights that can be integrated into environmental and conservation education. The documented interactions between macaques, caretakers, and visitors offer concrete examples for developing educational materials, improving visitor guidelines, and promoting awareness of responsible wildlife behavior at sacred forest sites. This study establishes a baseline for long-term monitoring and demonstrates how ecological data from cultural heritage forests can support conservation learning and sustainable human–wildlife coexistence.
Karakteristik Habitat Ikan Keting (Mystus Nigriceps) di Sungai Ijo, Kabupaten Kebumen, Jawa Tengah Rukayah, Siti; Nuryanto, Agus; Lestari, W; Sastranegara, Moh. Husein
Akuatika Indonesia Vol 11, No 1 (2026): Jurnal Akuatika Indonesia (JAkI)
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan Universitas Padjadjaran, Grha. Kandaga (P

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jaki.v11i1.68267

Abstract

Karakteristik habitat perairan meliputi fisika dan kimia air sungai yang mempengaruhi kelimpahan ikan di ekosistem Sungai Ijo. Informasi mengenai habitat dan kelimpahan Mystus nigriceps di Sungai Ijo tersebut masih terbatas dan kurang mendapat perhatian, sehingga penelitian ini perlu dilakukan. Tujuan penelitian ini yaitu untuk menganalisis parameter fisika dan kimia air serta hubungan antara parameter kualitas air terhadap kelimpahan M. nigriceps di Sungai Ijo. Penelitian ini dilakukan di Sungai Ijo, Kabupaten Kebumen terdiri atas 9 stasiun yang dibagi ke dalam 3 zona yaitu zona hulu, tengah dan hilir. Data kualitas air dideskripsikan dalam bentuk tabel serta hubungan karakteristik habitat terhadap M. nigriceps dianalisis dengan uji CCA. Hasil penelitian diperoleh temperatur tertinggi pada zona tengah, penetrasi cahaya, kecepatan arus, O2 terlarut dan pH tertinggi pada zona hulu serta kedalaman, lebar sungai dan CO₂ bebas tertinggi pada zona hilir. Kelimpahan M. nigriceps tertinggi pada zona hilir didukung substrat yang sesuai yaitu lumpur. Hubungan parameter kualitas air terhadap kelimpahan M. nigriceps berdasarkan uji CCA menunjukkan bahwa lebar sungai, kedalaman, CO₂ bebas dan substrat berlumpur sejalan dengan kehidupan M. nigriceps, sedangkan  peningkatan nilai penetrasi cahaya, kecepatan arus, O₂ terlarut dan pH menunjukkan penurunan kelimpahan. Hal tersebut dapat disimpulkan bahwa, secara umum kualitas air di Sungai Ijo cukup baik untuk mendukung kehidupan M. nigriceps. 
SEASONAL VARIATIONS IN THE REPRODUCTION OF TWOSPOT CATFISH (Mystus nigriceps) FIN THE CICINGGULING RIVER, KEBUMEN, CENTRAL JAVA Siti Rukayah; Agus Nuryanto; W Lestari; Isdy Sulistyo
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 22, No 2 (2026): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.22.2.102-108

Abstract

The Cicingguling River in Kebumen Regency is a freshwater ecosystem that serves as a critical habitat for native fish species, including Mystus nigriceps, which holds high ecological and economic value. This study aims to examine the reproductive characteristics of M. nigriceps over a full annual cycle (November 2022 - October 2023) using a survey method with purposive sampling. Field and laboratory sampling were conducted monthly to evaluate sex ratio, gonadal maturity stage (GMS), gonadosomatic index (GSI), fecundity, and egg diameter. The results showed an unbalanced sex ratio, with the number of female fish far exceeding that of males throughout the year. The GMS III and IV were higher during the rainy season, with GMS III at 295 individuals (female) and 170 individuals (male), and GMS IV at 259 individuals (female) and 144 individuals (male). The GSI and fecundity increased from December to February, coinciding with increased rainfall. The highest GSI and fecundity were recorded in January at 12.98% (females) and 6.63% (males), with fecundity reaching 17,927 eggs, accompanied by high rainfall (403 mm). Egg diameter during the rainy season showed a single peak (0.41–0.50 mm). In conclusion, M. nigriceps exhibits a seasonal reproductive pattern, indicating that the development of aquaculture and population dynamics depend on season-based management strategies. These findings provide a biological basis for data-driven conservation and support the sustainable management of freshwater fish resources in Central Java.
Assessment of Habitat Characteristics Influencing Fish Diversity in the Ijo River, Central Java, Indonesia Siti Rukayah; Agus Nuryanto; Windiriani Lestari; M. Husein Sastranegara,
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 32 No. 1 (2026)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2026.14811

Abstract

Freshwater fish populations are highly sensitive to habitat variation, yet information on how habitat characteristics shape fish diversity in Central Java rivers remains limited. The Ijo River is an important natural system for evaluating ecological factors that determine fish communities. This study aims to assess the physical and chemical characteristics of the Ijo River and evaluate their influence on fish diversity. Research was conducted using survey methods and purposive random sampling at nine stations across three zones: upstream, middle, and downstream. The results obtained are that the environmental parameters varied across river zones. The downstream zone recorded the highest temperature (29.14°C), greatest depth (2.54 m), widest channel (32.97 m), and highest free CO₂ (12.64 ppm). The upstream zone showed the greatest light penetration (74.43 cm), fastest Current Velocity (0.75 m/s), highest dissolved oxygen (5.28 ppm), and highest pH (8.31). Fish diversity also differed between zones. The downstream zone had the highest abundance (4,885 individuals) and greatest dominance (0.17), whereas the upstream zone exhibited the highest Shannon-Wiener diversity index (2.46) and evenness (0.36). These results indicate that upstream zones, with lower temperatures, faster currents, higher dissolved oxygen, and stable pH, support greater species diversity and evenness. Downstream zones, with higher temperatures, elevated free CO₂, and wider river width, show greater abundance but are dominated by a few adaptive species. This pattern, consistent with other rivers, confirms that physical and chemical water characteristics shape distribution, abundance, and dominance of freshwater fish. Thus, fish diversity is a key indicator of river ecosystem health.
Aspek Reproduksi Ikan Ceba (Systomus rubripinnis, Valenciennes, 1842) di Sungai Teba Kabupaten Kebumen, Jawa Tengah Fitri Nurcahyani; Isdy Sulistyo; Siti Rukayah; W Lestari; Moh Husein Sastranegara
MAIYAH Vol 4 No 3 (2025): Maiyah : Vol. 4 No. 3 September 2025
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.maiyah.2025.4.3.17633

Abstract

Ikan ceba merupakan spesies asli ikan air tawar dalam Famili Cyprinidae. Penelitian mengenai aspek reproduksi ikan ceba dilakukan di Sungai Teba, Kabupaten Kebumen Jawa Tengah bertujuan untuk mengetahui aspek reproduksi ikan ceba di Sungai Teba, Kebumen Jawa Tengah. Pengambilan sampel menggunakan teknik purposive random sampling dan data dianalisis secara deskriptif dan kuantitatif. Pengambilan sample pada bulan Mei-Juli 2023. Hasil penelitian menunjukkan bahwa rasio kelamin ikan jantan dan betina tertinggi pada bulan Juli sebesar 1:1,65 tergolong seimbang dengan TKG yang didominasi pada TKG I dan II. Nilai IGS tertinggi pada bulan Juli dengan nilai IGS ikan jantan (5,95%) lebih rendah dari pada ikan betina (10,12%). Fekunditas ikan ceba tertinggi pada bulan Juli sebanyak 5909 butir telur dengan rerata diameter telur berkisar 0,52-0,75 mm. Ukuran panjang pertama matang gonad ikan jantan (10,5-11,6 cm) lebih kecil dibandingkan ikan betina (12,3-13,5 cm)
Struktur Populasi Ikan Ceba (Systomus rubripinnis) Di Sungai Kecepek Kabupaten Kebumen Jawa Tengah Aulia Maya Firanti; W Lestari; Siti Rukayah; Muslih Muslih; Moh Husein Sastranegara
MAIYAH Vol 4 No 4 (2025): Maiyah : Vol. 4 No. 4 Desember 2025
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.maiyah.2025.4.4.17663

Abstract

Kabupaten Kebumen secara geografis terletak 7°27’-7°50' S dan 109°33’ 109°50’ T. Sungai Kecepek mengalir sepanjang Desa Pesantren, Desa Primbun Kidul, dan Desa Gebangsari. Struktur populasi merupakan strategi memprediksi kondisi populasi dalam suatu perairan. Penelitian ini bertujuan untuk mengkaji struktur populasi, rasio kelamin, TKG, hubungan panjang berat serta faktor kondisi ikan ceba. Ikan Ceba (Systomus rubripinnis) memiliki bintik merah di operculum dan sirip perut, dubur dan ekor berwarna merah. Metode yang digunakan pada penelitian ini adalah metode purposive random sampling dengan analisis data berupa analisis statistik dan deskriptif. Hasil penelitian pada bulan Mei menunjukkan bahwa ikan yang tertangkap didominasi oleh individu dengan sebaran ukuran 8,55-10,09 cm dan pada bulan Juni dengan ukuran 10,10-11,64 cm dengan jumlah individu 89 ekor. Rasio kelamin pada bulan Mei seimbang sedangkan pada Juni tidak seimbang. Pertumbuhan ikan ceba menunjukkan tipe allometrik negatif, dengan nilai b≠3. Faktor kondisi ikan menunjukkan bahwa ikan tergolong kurang montok dan struktur populasi ikan ceba dalam kondisi yang baik.
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