Article Per Year (5 Year)
p-Index From 2020 - 2025
0.983
P-Index
This Author published in this journals
All Journal Jurnal Akuakultur Indonesia ILMU KELAUTAN: Indonesian Journal of Marine Sciences Journal of Environmental Engineering and Sustainable Technology Jurnal Abdi Insani Buletin Poltanesa Jurnal MAIYAH
Soedibya, Petrus Hary Tjahja
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
Feasibility Study Area and Dissolved Oxygen Carrying Capacity of Silvofishery Pond on the Coastal Area Mardiana, Tri Yusufi; Ariadi, Heri; Rattanavichai, Wutti; Soedibya, Petrus Hary Tjahja; Linayati, Linayati
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 2 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.2.201-210

Abstract

The aim of this research are to assess the feasibility of water and soil quality in silvofishery cultivation areas and to determine the environmental carrying capacity of the cultivation. The methods employed include Water Quality Index (WQI), Soil Quality Index (SQI), carrying capacity, and correlation analysis of parameters. The concentration of COD in the silvofishery pond water ranges from 705.34-749.50 mg.L-1, and the total nitrogen content in the soil ranges from 7-8 mg.L-1. The COD parameter in water shows a strong correlation with dissolved oxygen. The soil type parameter silt is correlated with redox potential, while the clay soil type is correlated with sand soil. The variance in data for water and soil quality variables is considered significant as per cluster analysis. The WQI values range from 0.47-0.85, categorized as poor, good, and excellent. The SQI values range from 0.52-0.77, falling into the good and excellent categories. The carrying capacity of dissolved oxygen ranges from 0.7-1.99 kg.ha-1, indicating that if the DO concentration is below this range, oxygen depletion may occur in the silvofishery pond. The research results indicate that the water and soil quality in the silvofishery pond is still sufficiently suitable for silvofishery activities. The carrying capacity of dissolved oxygen in the silvofishery pond is deemed adequate for operational silvofishery activities, ranging from 14.26-15.87 kg.ha-1. This implies that the silvofishery cultivation system is capable of enhancing aquaculture productivity while minimizing environmental pollution in the surrounding aquatic areas resulting from the waste generated during aquaculture operations.
Performances Performances de la population de poissons indigènes dans le réservoir PB Soedirman, Banjarnegara, Indonésie Sukiyati, Eny; Soedibya, Petrus Hary Tjahja; sulistyo, isdy
MAIYAH Vol 2 No 4 (2023): Maiyah : Vol. 2 No. 4 Desember 2023
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.maiyah.2023.2.4.9969

Abstract

Le réservoir de PB. Soedirman est une zone lentique constituant un habitat pour divers de poissons. Le but de cette étude était d'inventorier les espèces, la dominance, l'abondance, et la biomasse relative des poissons indigènes dans le réservoir. Une méthode d'enquête a été effectué dans 7 stations d'échantillonnage avant d’obtenir les données primaires, c’est à dire la diversité des espèces de poissons. Les résultats ont montré qu'il y avait 13 poissons indigènes. L’indice de diversité était de 1,15 ; alors que l'indice de dominance a touché 0,03 indiquant une faible dominance. L'abondance relative des poissons était de 40,75 %, et la biomasse relative 40,12 %.
UTILIZATION OF TUBIFEX WORMS AS NATURAL FEED FOR GROWTH AND DEVELOPMENT OF FISH LARVAE Simangunsong, Tohap; Anjaini, Jefri; Soedibya, Petrus Hary Tjahja; Liu, Chun-Hung
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 01 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.01.5

Abstract

Fish farming has become essential in meeting the global demand for animal protein, with the maintenance of fish larvae being a crucial stage in determining production success. Tubifex worms, rich in essential nutrients, have long been used as natural feed in aquaculture. This article provides a comprehensive review of the utilization of Tubifex worms, covering their morphological and anatomical characteristics, habitat, and nutritional content. The benefits of using Tubifex worms as natural feed include enhanced growth and health of fish larvae and cost efficiency in production. This article also outlines feeding procedures, risk management, and challenges in the mass production of Tubifex worms. Additionally, recent research and practical approaches that can be implemented to optimize the use of Tubifex worms in fish farming are discussed, providing guidance for fish farmers and researchers in aquaculture.
Growth performance of African catfish Clarias gariepinus cultured in biofloc system at high stocking density Soedibya, Petrus Hary Tjahja; Pramono, Taufik Budhi; Listiowati, Emyliana
Jurnal Akuakultur Indonesia Vol. 16 No. 2 (2017): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3390.715 KB) | DOI: 10.19027/jai.16.2.244-252

Abstract

ABSTRACT This study was aimed to analyze the growth performance of African catfish Clarias gariepinus cultured in the biofloc system at high stocking density. African catfish with an average weight of 1.85±0.09 g were cultured in four units of tarpaulin tank at a diameter of 1.72 m and a height of 1.05 m with a volume of ±2,000 L at the different density of 1,000 fish/m3; 1,500 fish/m3; 2,000 fish/m3; 2,500 fish/m3. During rearing period, fish were given the artificial feed with protein contents of 28.75% with the frequency of twice a day, as much as 3% of the body weight. The results showed that different treatment of high stocking density in the biofloc system had a significant effect on the absolute growth rate, lipid retention and energy retention (P<0.05) but not significant effect on daily growth rate. The results showed that the highest lipid retention and energy retention were found in the group of fish treated at a stocking density of 2,500 fish/m3 but declining protein retention and growth in fish occurred. The highest absolute growth rate and daily growth rate were shown by treatment with a stocking density of 1,500 fish/m3. Keywords: growth, stocking density, biofloc   ABSTRAK Penelitian ini bertujuan untuk menganalisis performa pertumbuhan ikan lele dumbo Clarias gariepinus yang dipelihara pada sistem bioflok dengan padat penebaran tinggi.  Ikan uji memiliki berat rata-rata 1,85±0,09 g yang dipelihara pada kolam terpolin berdiameter 1,72 m dan tinggi 1,05 m dengan volume air ±2.000 L sebanyak empat unit dengan kepadatan yang berbeda yaitu 1.000 ekor/m3, 1.500 ekor/m3, 2.000 ekor/m3, 2.500 ekor/m3. Selama 40 hari masa pemeliharaan, ikan diberi pakan buatan berkadar protein 28,75% dengan frekwensi dua kali sehari, sebanyak 3% dari berat tubuh. Hasil penelitian menunjukkan bahwa perlakuan perbedaan padat penebaran tinggi pada sistem bioflok memberikan pengaruh yang nyata terhadap pertumbuhan mutlak, retensi lemak dan retensi energi (P<0,05) namun tidak memberikan pengaruh nyata terhadap laju pertmbuhan harian. Hasil penelitian menunjukkan bahwa semakin tinggi padat penebaran terjadinya peningkatan retensi lemak dan retensi energi yaitu pada perlakuan padat penebaran 2.500 ekor/m3 tetapi terjadi penurunan nilai retensi protein dan pertumbuhan pada ikan. Nilai pertumbuhan mutlak tertinggi ditunjukkan oleh perlakuan dengan padat penebaran 1.500 ekor/m3.    Kata kunci: pertumbuhan, padat tebar, bioflok
Hybrid Water Pump with River Flow and Solar Power for Farmer Groups in Plana Village-Banyumas Central Java Aminuddin, Jamrud; Widarawati, Rosi; Soedibya, Petrus Hary Tjahja; Shokib, Maskhiyatus; Vita, Tika Ayunda; Azmi, Ulil; Saputra, Dian Rizqi
Poltanesa Vol 26 No 1 (2025): June 2025
Publisher : P3KM Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v26i1.3293

Abstract

Plana Village located in Somagede District, Banyumas Regency, Central Java Province is about 25 km Southeast of the Universitas Jenderal Soedirman Campus. In this village, a small business group is engaged in freshwater fish farming under the names TIRTA LESTARI and GAPOKTAN PLANA JAYA fish cultivator groups. Based on direct observations, the group uses the Serayu River as the primary water source for their fish ponds. The position of the fish pond is around 10 meters higher than the river flow so the water lifting process is carried out using a water pump. The only solution for providing water is to use a machine-powered water pump. The group complained about this solution because they had to pay operational costs for engine fuel. As a result, the group's profits are not optimized. Considering these conditions, a water pump technology transfer activity with a waterwheel as the driving force is planned to develop the results of research and service carried out in the Physics Department, Faculty of Mathematics and Natural Sciences, Universitas Jenderal Soedirman.  The goal of the operations that have been conducted is to address partner concerns regarding the provision of water supplies. Activities aimed at becoming an economically productive partner will prioritize key issues, including the implementation of green energy technology, such as hybrid water pumps powered by solar energy and river flow. The next step involves providing training and counseling sessions for the TIRTA LESTARI agriculture group and the merged PLANA JAYA farming group.
PELATIHAN PENGELOLAAN LINGKUNGAN PERAIRAN WADUK PENJALIN: DUKUNGAN BAGI KESEIMBANGAN EKOSISTEM DAN PENINGKATAN EKONOMI MASYARAKAT Hidayati, Nuning Vita; Muslih, Muslih; Soedibya, Petrus Hary Tjahja; Fikriyya, Nabela; Hastuti, Dewi Wisudyanti Budi; Tohir, Tohir; Riviani, Riviani; Putri, Adinda Kurnia; Raharja, Ferry Cahya; Hidayatullah, Irwan; Putri, Desta Fatma; Wibowo, Mahbub Fuad
Jurnal Abdi Insani Vol 12 No 4 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i4.2419

Abstract

One of the reservoirs in Central Java is Penjalin Reservoir, which is specifically situated in Winduaji Village, Paguyangan District, Brebes Regency. Penjalin Reservoir is now dealing with environmental degradation issues, such as highly filthy water and rapidly growing water algae that might upset the ecosystem's equilibrium. The Jenderal Soedirman University (UNSOED) Team and the local Village Government, working through the Village Community Empowerment Institution (LPMD), followed up on this by developing a program of activities to combat environmental degradation in order to preserve the ecosystem's equilibrium and generate income for the neighborhood. Socialization and training for this program were conducted as a first stage. Technical advice for fish farming operations, including seed certification and business management training, will also be provided. Efforts are also being made to reintroduce fish, particularly herbivorous fish species, in an attempt to quickly overcome hydrilla. Facilities for consultation are offered as a crucial component of carrying out this activity. The first stage, socialization and training targeted at the people living near the Penjalin Reservoir, is the main topic of this essay. Educating the community about the current state of the Penjalin Reservoir and the significance of maintaining the aquatic ecosystem's equilibrium is the top goal during the socialization stage. In addition to talking about environmental issues, this program also covers the financial benefits of managing the Penjalin Reservoir sustainably, such as by raising carp and tilapia, which both benefit the ecosystem and boost revenue. Participants are encouraged to comprehend the training's goal of preserving the ecology and boosting the local economy by highlighting the significance of the community's active participation in improvements to the reservoir. The execution of the following work stage depends on this task. An excellent partner that may support and act as a stimulant for the local population is LPMD, an official village-level organization. A participatory strategy is used to carry out the programs, meaning that program partners actively participate in every activity.
Co-Authors Adinda Kurnia Putri Aminuddin, Jamrud Emyliana Listiowati, Emyliana Fikriyya, Nabela Hastuti, Dewi Wisudyanti Budi Heri Ariadi Irwan Hidayatullah, Irwan Isdy Sulistyo Jefri Anjaini Linayati, Linayati Liu, Chun-Hung Muslih Muslih Nuning Vita Hidayati Putri, Desta Fatma Raharja, Ferry Cahya Rattanavichai, Wutti Riviani Riviani, Riviani Rosi Widarawati RR. Ella Evrita Hestiandari Saputra, Dian Rizqi Shokib, Maskhiyatus Sukiyati, Eny Taufik Budhi Pramono Tohap Simangunsong Tohir Tohir, Tohir Tri Yusufi Mardiana Vita, Tika Ayunda Wibowo, Mahbub Fuad