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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences El-Hayah : Jurnal Biologi Biotropika Jurnal Biodjati Journal of Research on Community Engagement
Bayu Agung Prahardika
Biology Department, Science And Technology Faculty, UIN Maulana Malik Ibrahim Malang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Immunology & microbiology Medicine & Pharmacology Social Sciences

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Diversity of Soil Arthropods In The Tea Plantation of PTPN XII Bantaran Blitar Suheriyanto, Dwi; Qiptiyah, Mariatul; Prahardika, Bayu Agung
El-Hayah : Jurnal Biologi Vol 6, No 3 (2017): EL-HAYAH (VOL 6, NO 3,September 2017)
Publisher : Department of Biology Science and Technology Faculty UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v6i3.5375

Abstract

Pruning tea leaves not only improve the productivity of the tea leaves but ecologically improve soil arthropods, which have very important role in the food chain. This study aimed to identify and analyse the diversity of soil arthropods in the tea plantation of PTPN XII Bantaran Blitar with pruning system. Observation of soil arthropods was performed by using hand sorted method on tea land with 25, 25 and 30 cm of each length, width and depth, respectively. Observations were performed at three stations, namely Pruning Year (PY) I, PY II and PY III, at which each station contains 10 observation point. The data were analysed by PAST program 3.06 version. This study found soil arthropods about 45 specimens, consisting of 15 orders, and 33 families. The most abundant order is Coleoptera, as well  the role of common soil arthropods are predator.  Family Formicidae is the most common family found in tea plantation. In addition, the highest of soil arthropods diversity index is in PY III, i.e. 2,58.
Studi Keanekaragaman Diatom Epilitik serta Potensinya sebagai Bioindikator Kualitas Perairan Sungai di Coban Tarzan Kabupaten Malang Bayu Agung Prahardika; Widi Muhammad Lutsfi Dwi Styawan
Biotropika: Journal of Tropical Biology Vol 8, No 2 (2020)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2020.008.02.07

Abstract

Air selalu menjadi kebutuhan penting dalam memenuhi segala aspek kehidupan bagi semua makhluk hidup. Keberadaan sumber daya perairan harus didukung dengan kuantitas yang tercukupi serta kualitas yang baik. Salah satu sumber daya perairan yang sering dimanfaatkan oleh makhluk hidup adalah sungai, terutama aliran sungai yang berasal dari air terjun (coban). Tujuan penelitian ini untuk mengetahui keanekaragaman jenis diatom epilitik serta potensinya sebagai organisme indikator penentu kualitas perairan sungai di Coban Tarzan Kabupaten Malang. Pengambilan sampel diatom epilitik dilakukan dengan metode terpilih (purposive sampling) pada tiga stasiun di perairan sungai Coban Tarzan. Sampel diatom epilitik diambil dari substrat batuan yang terendam air dan tidak lebih dari kedalaman 20 cm. Parameter yang diamati dan diukur antara lain Kepadatan (K), Indeks Keanekaragaman Shannon Wiener (H’), Indeks Dominansi Simpson (C) dan Indeks Tropik Diatom Epilitik. Hasil pengamatan menunjukkan bahwa kepadatan total diatom epilitik yang ditemukan di Coban Tarzan selama penelitian adalah 152.669 ind/cm2, yang terdiri delapan genus (Amphora, Cocconeis, Cymbella, Fragilaria, Gomphonema, Navicula, Nitzschia dan Rhoicosphenia). Sementara itu nilai H’ diatom epilitik di sungai Coban Tarzan menunjukkan tingkat keanekaragaman yang sedang (H’=1,52), sedangkan untuk nilai C menunjukkan tidak ada spesies diatom epilitik yang mendominasi di perairan tersebut (C=0,25). Hasil indeks tropik diatom epilitik menunjukkan perairan sungai Coban Tarzan tergolong memiliki kualitas perairan dengan kategori sedang (mesotrofik).
Control of Microcystis spp . Bloom By Combination of Indigenous Denitrifying Bacteria From Sutami Reservoir With Fimbristylis globulosa and Vetiveria zizanoides Bayu Agung Prahardika; Catur Retnaningdyah; Suharjono -
Journal of Tropical Life Science Vol. 3 No. 1 (2013)
Publisher : Journal of Tropical Life Science

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

Abstract

The purpose of this research were to know the ability of polyculture macrophyte (Fimbristylis globulosa and Vetiveria zizanoides) and combination of both with consortium of indigenous denitrifying bacteria from Sutami reservoir that added by Microcystis spp. or not to reduce the concentration of nitrate, dissolved phosphate and the carrying capacity of Microcystis spp. Experiment was done in medium of Sutami reservoir water enriched with 16 ppm of nitrate and 0,4 ppm of phosphate. Denitrifying bacteria were used in this research were DR-14, DU-27-1, DU-30-1, DU-30-2, TA-8 and DU-27-4 isolated from Sutami reservoir. The treatments were incubated during 15 days. Microcystis spp. abundance was calculated every day, but measurement of the the concentration of nitrate and dissolved phosphate were done every six days. The results showed that both treatment and a combination of both macrophytes with a consortium of denitrifying indigenous bacteria were added or not either Microcystis able to reduce nitrate at 99% and 93-99% orthophosphoric. Combination of macrophytes with denitrifying indigenous bacterial consortium from Sutami reservoir was able to inhibit the carrying capacity of Microcystis spp. highest until 47.87%. They can also significantly reduce the abundance of Microcystis from 107 cells/mL in early of treatment to become 0.35x104 cells/mL after fifteen days incubation.
Reptiles and Amphibian Diversity, Along with Potential Treat in Sumber Nyolo, Malang Regency Berry Fakhry Hanifa; Muhammad Asmuni Hasyim; Bayu Agung Prahardika; Nurul Whika Agustin
El-Hayah Vol 8, No 4 (2022): EL-HAYAH (VOL 8 NO.4 MARET 2022)
Publisher : Program Study of Biology, Science and Technology Faculty, UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v8i4.15799

Abstract

Inventory of reptiles and amphibians was carried out in the Sumber Nyolo area, Karangploso District, Malang Regency, East Java. The sampling area is at an altitude of 600-650m above sea level. Pre-survey was conducted once. The survey was conducted from June-October 2020 using the visual encounter (VES) method. A total of 167 individuals from 17 species, 10 families have been recorded, 1 of which is in Near Threatened (NT) and Vulnerable (VU) status on the IUCN Redlist namely Ptyas korros and Huia masonii respectively, which H.masonii also endemic to Java Island. The diversity index (H’) shows a moderate value (2.099), while the dominance value (0,211) was lower than the evenness index (0.479). The species with the largest population was Chalchorona chalchonota (70 individuals), while Huia masonii, Ptyas korros Gekko gecko, and Xenochrophis sp. was the fewest species found (1 individual). Threats to this area include habitat destruction due to land conversion into tourism area and religious destination as well as rice fields in the downstream and settlement area
The Epilithic Diatom Community as a Bioindicator of water quality Brangkal Subwatershed in the Mojokerto Area Bayu Agung Prahardika; Widi Muhammad Lutsfi Dwi Styawan
Jurnal Biodjati Vol 7, No 2 (2022): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i2.20439

Abstract

Diatoms are widely used as bioindicators of water quality because of their short life cycle and sensitivity to changes of environmental conditions in waters.  One type of diatom that is used as a bioindicator is an epilithic diatom. Epilithic diatoms are one of the diatom microalgae communities attached to rock, so they are difficult to be carried away by currents. This study aimed to determine the type, composition, abundance, diversity, and dominance of epilithic diatoms found in the waters of the Brangkal subwatershed, and to determine the quality of water in the Brangkal subwatershed based on the epilithic diatom tropic index. Epilithic diatom samples were taken from 4 stations in the Brangkal subwatershed, Mojokerto Regency at the beginning of the dry season (July-August). The analysis carried out includes abundance, diversity index, dominance index, and Diatom Trophic Index (TDI). Based on the results of the study, 17 genera of epilithic diatoms were found, with the highest abundance of epilithic diatoms, including Navicula, Cocconeis, Nitszchia, and Gomphonema. The diversity index of all stations was in the medium category, with a value between 1.206 to 1.882. The lowest dominance index at station 1 was 0.167 and the highest was at station 4 with 0.373. In addition, the observed water quality is based on the Diatom Trophic Index (TDI), stations 1 to 3 are in a good category, and stations 4 are in a bad category. 
Microplastic Contamination in Waters and Sediments in the Selorejo Reservoir, Malang Regency, East Java Bayu Agung Prahardika; Iqbal Fatkhul Akbar; Muhammad Imam Muzammil
Biotropika: Journal of Tropical Biology Vol. 11 No. 2 (2023)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2023.011.02.06

Abstract

Microplastic waste particles are a new contamination material in aquatic and terrestrial ecosystems. Heaps of garbage and fishing activities around residential areas are examples of anthropogenic activities around the Selorejo Reservoir and can potentially become sources of microplastic contamination. This research aims to observe the presence of microplastic contamination type and its abundance in water and sediment samples taken from the Selorejo Reservoir. The purposive sampling method was applied at five different stations, including the Konto River inlet, Kwayangan River inlet, residential area (kauman hamlet), tourism area, and reservoir outlets. Each station has three transects (as replicates), and about 100 liters of water and 1000 grams of sediment were taken. Water and sediment samples were then destruction using 30% H2O2 acid and 30% H2SO4 to remove organic components that were still attached and later facilitated observation under a stereo microscope with a magnification of 400X to make it clearer. All types of microplastics found were then counted based on their respective numbers. The analysis results showed that there was microplastic contamination in the reservoir water samples at each station. The highest abundance of microplastics was successively found in the Konto River inlet with a total abundance value of 39.27x101 particles/liter, then in the residential area (kauman hamlet) a number of 35.34x101 particles/liter, tourist areas 33.67x101 particles/liter, outlet 30.36x101 particles/liter and Kwayangan river inlet 29.67x101 particles/liter. Meanwhile, the presence of microplastics was also found in reservoir sediment samples. The highest abundance of microplastics was also found in sediments in the Selorejo Reservoir originating from the Konto River inlet with a total abundance value of 3.68 particles/gram, then in the tourist area 2.08 particles/gram, in the Kwayangan River inlet 1.56 particles/gram, in the residential area a number of 1.2 particles/gram and outlets 1.12 particles/gram. The types of microplastic found in the waters of the Selorejo Reservoir include fibers, fragments, and filaments. While the types of microplastics found in Selorejo Reservoir sediments include fibers, fragments, filaments, and films. This result is related to the existence of various community activities which are sources of microplastic contamination.
Health Monitoring and Identification of Tree Planting Plants in the Area of Campus Biodiversity Forest of State Islamic University of Maulana Malik Ibrahim, Malang Winarto, Yoga Permadi; Harianto, Fitri; Djulkarnain, Wildi; Prahardika, Bayu Agung; Zahra, Elok Dzikrinina; Abida, Khumairoh Nur; Hazmi, Muhammad Rizal
El-Hayah:Jurnal Biologi Vol 9, No 4 (2024): EL-HAYAH (VOL 9, NO 4 Maret 2024)
Publisher : Program Study of Biology, Science and Technology Faculty, UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v9i4.23970

Abstract

A forest is an ecosystem unit in the form of a stretch of land with natural resources dominated by trees with all their benefits for living things in the surrounding environment. The urgency of the presence of forest ecosystems encourages related to improving the quality of forest management with the aim of guaranteeing its functions and benefits. State Islamic University of Maulana Malik Ibrahim Malang is one of the actors in forest ecosystem management activities through campus forest areas with tree planting activities. In this study, it was intended to monitor and identify plant health using the Forest Health Monitoring (FHM) method. The samples observed in this study were 71 plants with tree species varying from longan new crystal (Dimocarpus longan), red jackfruit (Artocarpus heterophyllus), alligator avocado (Persea americana), and banyan tree (Ficus benjamina). The results showed that almost all of the samples belonged to the healthy class of the Tree Health Index, except for one sample which was found to have died. Some causes of tree damage include pest attacks in the form of insects and sooty mildew as well as spots and discoloration on leaves. Steps to anticipate more severe damage by carrying out maintenance and handling strategies in the form of improving irrigation techniques, embroidery techniques, cleaning pests and weeds, and fertilizing.
UPAYA PENINGKATAN EKONOMI DAN PENGURANGAN SAMPAH DOMESTIK MASYARAKAT SUMBERSARI MELALUI PEMANFAATAN ALIRAN SUNGAI UNTUK BUDIDAYA IKAN MUJAIR Romaidi, Romaidi; Prahardika, Bayu Agung; Hasyim, Muhammad Asmuni
JRCE (Journal of Research on Community Engagement) Vol 1, No 2 (2020): Journal of Research on Community Engagement
Publisher : Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/jrce.v1i2.8839

Abstract

One of the biggest threats from human activities to rivers is the increasing number of residential areas around or even just above the river flow. This condition is certainly very threatening the sustainability of rivers in the region. One of the biggest threats is that the garbage produced by the community will be directly disposed of in the river flow. One way that can be done to reduce waste disposal in the river is by utilizing river flow, so that many rivers are now increasingly being developed as a vehicle for habitat conservation, because the river is considered important for various aquatic plants, migratory and sedentary fishes, and aquaculture ponds, birds and several types of mammals. In this case, the concept of river management must be based on environmental, ecological, economic and social aspects according to the characteristics of the surrounding community. The purpose of this community service is to utilize river flow for tilapia fish farming. The method used in the service is the PAR by way of lectures and direct practice in aquaculture with karamba by utilizing river flow. From the results of community service including partners showed that some respondents know how to fish with karamba, but do not know that river flow can also be used for fish farming with the karamba system. As well as the results of fish farming practices with the karamba system most of the respondents agreed agree (73%) if the fish culture using the karamba system is used as an alternative business idea related to river flow utilization and 60% of respondents agree the use of river flow for fish cultivation can reduce waste disposal in the river.
Co-Authors Abida, Khumairoh Nur Berry Fakhry Hanifa Catur Retnaningdyah Djulkarnain, Wildi Dwi Suheriyanto Harianto, Fitri Hazmi, Muhammad Rizal Iqbal Fatkhul Akbar Muhammad Asmuni Hasyim Muhammad Imam Muzammil Nurul Whika Agustin Qiptiyah, Mariatul Romaidi Romaidi Suharjono - Widi Muhammad Lutsfi Dwi Styawan Widi Muhammad Lutsfi Dwi Styawan Winarto, Yoga Permadi Zahra, Elok Dzikrinina