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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences BIOTROPIA - The Southeast Asian Journal of Tropical Biology The Journal of Experimental Life Sciences (JELS) Journal of Indonesian Tourism and Development Studies Biotropika Jurnal Pembangunan dan Alam Lestari AGRIVITA, Journal of Agricultural Science Journal of Tropical Biodiversity and Biotechnology JSMARTech : Journal of Smart Bioprospecting and Technology RISTEC : Research in Information Systems and Technology Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Nia Kurniawan
Brawijaya University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Social Sciences Veterinary

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Habitat suitability modelling of Rhacophorus reinwardtii (Schlegel, 1840) in Java, with notes on habitat characteristics from Malang, East Java Kurniawan, Nia; Fathoni, Muhammad; Assiddiqy, Miftah Farid; Septiadi, Luhur; Rijalullah, Muhammad Asyraf
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 2 (2024): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.84459

Abstract

The distribution of the Reinwardt's Gliding Frog, Rhacophorus reinwardtii (Schlegel, 1840), was recently thought to be restricted in Java. Furthermore, the constant and rapid deforestation in Java highlight the significance of the frog's habitat requirements in establishing the accurate species' conservation status. This study aims to predict the suitable habitat for this species in Java and to identify the habitat characteristics in Malang Region-East Java. Using the Maximum Entropy (MaxEnt) approach, we modelled the distribution of species and examined numerous types of breeding sites in Malang Region. Our findings revealed that the species inhabits a much more restricted and fragmented habitat in Java, where it inhabits both forest and agroforestry areas. 
Identification of Microplastics in The Outer Ambon Bay, Mollucas Lekatompessy, Vanela Chatrin; Marhendra, Agung Pramana Warih; Kurniawan, Nia
The Journal of Experimental Life Science Vol. 14 No. 2 (2024)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2024.014.02.02

Abstract

Marine plastic debris that enters the sea can be fragmented by physical and chemical factors, then float in the water column or accumulate in sediments, which have the potential to be ingested by marine biota, causing digestive system disorders, fecundity, eating capacity, reproduction, and death. This study aimed to identify the accumulation of microplastics in water and sediments in Outer Ambon Bay using a purposive sampling method and descriptive analysis for data related to microplastics' type, color, and size, as well as follow-up tests of the least significant difference. The results show that the waters of Outer Ambon Bay have been polluted by microplastics. The number of microplastic particles found in water samples at three different depths (0, 50, and 100 cm) was 201 particles L-1, and in sediment samples, it was 325 particles g-1. It is supported by the fact that the type of fiber has a thin shape and size and can float on the surface of the water and by the existence of beaches where there are fishing activities, boat ports, rivers, and densely populated areas, as well as sandy and muddy sediments that can trap more microplastics during the tidal period. Therefore, it is necessary to prevent the waste problem in the waters of Ambon Bay. Keywords: Identification, Marine Pollution, Microplastics, Outer Ambon Bay.
Digestive Enzymatic Activity Profiles and Larval Growth Performance of Barramundi, Lates calcarifer (Bloch, 1790), From Indonesian and Australian Broodstocks Wibawa, Gigih Setia; Haryanti, Haryanti; Kurniawan, Nia
Biotropika: Journal of Tropical Biology Vol. 12 No. 3 (2024)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2024.012.03.02

Abstract

Barramundi fish is one of the most important aquaculture commodities, with cultivation challenges closely related to its survival and growth. There is still a lack of information on digestive enzymatic activity profiles and larval growth, and the use of Australian brooders rather than Indonesian brooders is still frequent. This study aims to investigate digestive enzymatic activity profiles and their correlation to the growth performance of barramundi larvae, Lates calcarifer (Bloch, 1790), originating from Indonesia and Australia. The digestive enzyme activity profile was evaluated using real-time quantitative polymerase chain reaction (RT-qPCR). First, larvae were reared in captivity till day 20 (20 dah). During this rearing, measurements of length and weight growth were done every day. Experiment data shows Australian fish larvae were greater than that of the Indonesian. Their digestive enzyme activity also confirmed that Australian larvae had more activity than Indonesian larvae.
Computational Insight on Bioactive Compound Potential Activity of Kenitu (Chrysophyllum cainito L.) Leaves as PPAR-y Antagonist for Obesity Rosyada, Nabila Nur; Andyni, Regina Shania; Alvionita, Cicin Vinolia; Narwasthu, Sekararum; Adawiyah, Robiatul; Hermanto, Feri Eko; Kurniawan, Nia; Fatchiyah, Fatchiyah
Biotropika: Journal of Tropical Biology Vol. 12 No. 2 (2024)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2024.012.02.03

Abstract

Studies reported that kenitu (Chrysophyllum cainito) has the potential as an anti-obesity agent. However, the mechanism underlying that activity remains unknown. On the other hand, targeting PPAR-y has played a beneficial role in regulating obesity. Therefore, this study will explain the anti-obesity potential of natural compounds from C. cainito in modulating obesity through inhibition of PPAR-y. Molecular docking was employed to identify the possibility of several compounds binding with the PPAR-y. Moreover, the stability of the interaction between PPAR-y and each compound was also evaluated using molecular dynamics analysis. The result showed that beta-sitosterol, lupeol, myricitrin, quercitrin, rutin, vitamin A, epicatechin, and chlorogenic acid are worthy of potential as PPAR-y antagonists. In advance, molecular dynamics simulations revealed that chlorogenic acid, quercitrin, and epicatechin were the most stable compounds to interact as an inhibitor of PPAR-y. In conclusion, compounds from star apple have some potential to improve the health status of patients’ obesity through PPAR-y antagonist activity.
Assessing the Genotoxicity Effect of a Commercial Chlorpyrifos Formulation in Fejervarya limnocharis Tadpoles (Anura: Dicroglossidae) Under Acute and Chronic Exposure Ramadani, Shima; Marhendra, Agung Pramana Warih; Kurniawan, Nia
The Journal of Experimental Life Science Vol. 12 No. 1 (2022)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2022.012.01.02

Abstract

The potential for genotoxicity of pesticides is currently one of the world's concerns. Chlorpyrifos is the organophosphate active ingredient with the largest sales, but the potential for genotoxicity in amphibians is still not widely known. The purpose of this study was to assess the genotoxicity effect of a commercial chlorpyrifos formulation Dursban 200EC in F. limnocharis tadpole erythrocyte (Anura: Dicroglossidae) under acute and chronic exposure using by micronucleus assay. Acute and chronic toxicity tests consisted of negative control, positive control, and 0.4, 0.8, and 1 µg.L-1 of chlorpyrifos with three replications. A toxicity test was carried out on ten tadpoles (Gosner 25) from artificial reproductions in each treatment. The results showed that the formulation of Dursban 200EC in low concentrations (0.4 µg l-1) had the potential to induce DNA damage in erythrocytes of F. limnocharis tadpoles, and there was a positive correlation between chlorpyrifos concentrations and an increase in the frequency of MN. Erythrocytes exposed to chlorpyrifos in both acute and chronic treatment had significantly different MN frequencies between negative and positive controls, 0.4, 0.8, and 1 µg.L-1 (p<0.01). Meanwhile, positive controls were not significantly different from 1 µg.L-1 ( p>0.05). However, the increase in the frequency of MN in chronic treatment was almost twice as high.
Morphological Variation of Asian Small Lizards genus Tytthoscincus Linkem, Diesmos & Brown (Squamata : Scincidae) in Indonesia Firmansyah, Richo; Riyanto, Awal; Kurniawan, Nia
The Journal of Experimental Life Science Vol. 13 No. 2 (2023)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2023.013.02.05

Abstract

Morphological variations in species with a relatively broad distribution, including the genus Tytthosincus, were likely a result of island isolation. This research was conducted to map the morphological variations of the genus Tytthoscincus in Indonesia. A total of 32 specimens of the Tytthoscincus scientific collection in the Zoologicum Bogoriense Museum (MZB) - National Research and Innovation Agency (BRIN) and identified as T. temmincki, T. textus, and T. parvus have been examined and data collection which includes six morphometric characters and 12 meristic characters. Morphometric data were analyzed in univariate and multivariate. Univariate analysis was carried out by the Kruskal-Wallis test, while multivariate analysis was done with the Principal Component Analysis (PCA) test. The results showed morphology in T. temmincki and T. textus, namely the number of loreal scales and tympanum diameter. Both T. temmincki and T. textus consist of two groups, but the morphological variation in T. temmincki and T. textus in this study has yet to provide certainty as a different species. However, one was T. textus Type 2, isolated from other species on Jampea Island, Sulawesi. Further research was needed to clarify the taxonomic status of these variations by increasing the number of adequate samples supported by the molecular analysis approach. Keywords: meristic, morphometric, species, Tytthoscincus, variation.
Corrigendum: Morphological Variation of Asian Small Lizards Genus Tytthoscincus Linkem, Diesmos & Brown (Squamata : Scincidae) in Indonesia Firmansyah, Richo; Riyanto, Awal; Kurniawan, Nia
The Journal of Experimental Life Science Vol. 13 No. 2 (2023)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2023.013.02.10

Abstract

CORRIGENDUM.
Phylogenetic Inference on Limnonectes kuhlii Complex in Java and Sumatra Reveals Significant Novel Diversity Fahmi, Muhamad; Kadafi, Ahmad Muammar; Priambodo, Bagus; Fauzi, Muhammad Alif; Hamidy, Amir; Firdaus, Anggun Sausan; Smith, Eric Nelson; Kurniawan, Nia
The Journal of Experimental Life Science Vol. 13 No. 3 (2023)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2023.013.03.02

Abstract

The fanged frog, Limnonectes kuhlii, exemplifies the complexity of cryptic species. Though originally described from Java, subsequent studies indicate that L. kuhlii encompasses multiple lineages, suggesting the presence of several undescribed species. Suspecting the existence of multiple undescribed species within the L. kuhlii complex in Sumatra, we collected 17 specimens from Java and Sumatra. We extracted the 12S, tRNAval, and 16S mitochondrial DNA from these specimens for phylogenetic analysis using Maximum Likelihood and Bayesian Inference methods and for estimating time divergence. Our findings uncovered two novel diversity within the L. kuhlii complex both in Sumatra and Java. Furthermore, our estimation of time divergence suggests that the diversification of L. kuhlii in Java and Sumatra was influenced by geological and climatic events, including landmass emergence and sea-level fluctuations. In conclusion, our research provides critical insights into the evolutionary complexity and diversity of the L. kuhlii complex in Sumatra and Java. While our molecular evidence suggests novel diversity, further comprehensive morphological studies are imperative to confirm and describe these potential new species. Furthermore, additional sampling across its range and deeper investigations integrating both molecular and morphological data are crucial. Keywords: fanged frogs, Limnonectes kuhlii, Limnonectes sisikdagu, phylogenetics.
Effectiveness of Extract Supplements (Apium graveolens L.) to Estrogen Receptors Expression and Oocyte Diameter at Nucleolar Chromatin and Perinucleolar Stages in Female of Nile tilapia (Oreochromis niloticus L.) Rikardo, Novy Kurnia; Marhendra, Agung Pramana Warih; Kurniawan, Nia; Riawan, Wibi; Rahayu, Sri
The Journal of Experimental Life Science Vol. 13 No. 3 (2023)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2023.013.03.03

Abstract

The study of the use of celery (Apium graveolens L.) in the health sector has been widely discussed. The analysis of the use of celery in the process of oocyte development still needs to be addressed. This study was conducted to see the effect of celery extract on the expression of estrogen receptors on the gonads and oocyte diameter in tilapia for the first time. Fish are divided into four groups: P0 = Control treatment, feed without mixture; P1 = Treatment with celery extract concentration of 2,000 mg.kg-1 of feed; P2 = Treatment with celery extract concentration of 4,000 mg.kg-1 of feed; P3 = Treatment with celery extract concentration of 6,000 mg.kg-1 of feed. The results showed celery extracts expressed estrogen receptors on the gonads. The expressed estrogen receptor is the estrogen receptor β, whereas the estrogen receptor α is not detected in the gonad. Group statistical tests ANOVA showed no significant results in the development of oocytes. On the other hand, celery extract also impacted the development of oocytes at the nucleolar stage of chromatin, with a markedly greater oocyte diameter. Meanwhile, in the perinucleolar stage, celery extract reduces the oocyte diameter. Keywords: Apium graveolens L, ERα, ERβ, nucleolar chromatin, perinucleolar.
Could Road Structures Impact the Avian Community? A Study Case from the South Coast Remained Forest in Malang Region, East Java Province, Indonesia: Impact of Road Structures on Avian Community Nurrofik, Agus; Hakim, Luchman; Septiadi, Luhur; Kurniawan, Nia
Journal of Tropical Life Science Vol. 14 No. 2 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.02.10

Abstract

The remaining tropical forest on the south coast of the Malang region is one of the secluded areas that served as an important habitat for its biodiversity, particularly for avians. Nevertheless, the presence of the road structure that crosses over the forest might impact avian communities, which needs to be investigated. The avian survey was conducted to investigate the diversity, community profiles, abundance, and feeding guild based on two different ecosystem patches (on the roads versus outside the road structures) during January–April 2022. The audiovisual encounter methods were performed during the surveys on a total of ten sampling points. Avian species were identified using field guides where the conservation status was based on the national regulation (P106 KLHK), CITES, and IUCN Redlist. The comparison through the avian community based on species richness was analyzed using Venn Diagrams and predicted using rarefaction and interpolation curves on INEXT packages. Additionally, the comparison of sizes of avian abundance was investigated using the α-diversity parameter index, and the feeding guild was determined by five diet guilds. In total, 2536 individuals from 67 species, 34 families, and 13 orders were found during the survey. The avian communities were richer outside the road structure, but their abundance qualitatively reveals that both different ecosystem patches showed relatively good condition. Overall, road structures generate both positive (unique habitat patches) and negative (physical barriers that could disrupt natural ecological processes) impacts on avian diversity. In light of these, sustainable management and conservation action plans were urgently needed to prevent the negative effects on avian communities posed by the road structure.
Co-Authors Abdul Basith Abdullah Abdullah Achmad Dadang Burhanuddin Agung Pramana W.M Agung Pramana W.M Agung Pramana Warih Marhendra, Agung Pramana Warih Agung S. Kurnianto Agung Sih Kurnianto Agung Sih Kurnianto Agung Sih Kurnianto Agus Nurrofik Agus Suryanto Aguung Sih Kurnianto Ahmad Muammar Kadafi Alvionita, Cicin Vinolia Amin Setyo Leksono Aminuddin Affandi AMIR HAMIDY Ananda, Alif Aulia Andri Maulidi Andri Maulidi Andyni, Regina Shania Anggun Sausan Firdaus Aninnas, Afina Annisa Zakiyah Darojat Ardiansyah, Franky Ardiantoro, Ari Ardyah Ramadhina Irsanti Putri Arief Sugiharto Arifianto, Adityas Asmaul Khusnah Asmaul Khusnah Assiddiqy, Miftah Farid Azrianingzih, Rodiyati Azrianingzih, Rodliyati Badiul Ulum Badiul Ulum Bagaskara, Satria Wira Bagus Priambodo Bagyo Yanuwiadi Bayu Hendra Prakosa Catur Retnaningdyah Chomsy, Indah Nur Chrestella, Dea J. Darojat, Mas Khoirud Dinana, Ichda Arini Djong Hon Tjong Dwi Anggorowati Rahayu Eldi Mulyana, Eldi Endik Deni Nugroho Estri Laras Arumingtyas Fahmi, Muhamad Faldy Alifianto Faldy Alifianto fatchiyah . Fauzi, Muhammad A. Fauzi, Muhammad Alif Firdaus, Anggun Sausan Firmansyah, Richo Fitra Arya Dwi Nugraha Fitra Arya Dwi Nugraha Franky Ardiansyah Gigih Setia Wibawa Haryanti Haryanti Haryono Haryono Herlin Aprilia Kartini Herlin Aprilia Kartini Hermanto, Feri Eko Imti Yazil Wafa Jati Batoro Kadafi, Ahmad M. Kamila, Fatiha Karina hanum wardany Karina hanum wardany Kartika Prabasari Karuniawan Puji Wicaksono Kholilah, Tsaniyah Nur Kurnianingsih, Nia Kurnianto, Aguung Sih Lekatompessy, Vanela Chatrin Lingga Nugraha Liu, Fu-Guo Robert Luchman Hakim Lutfita Fitriana Lutviyana Rahman Lutviyana Rahman Maharani, Tri Mahmudul Hasan, Mahmudul Maisuroh, Dalilatul Masayuki Sumida, Masayuki Mufti, Elsa Muhammad Fathoni, Muhammad Mumpuni Mumpuni Narwasthu, Sekararum Nashi Widodo Nasirudin, Mohamad Nobukazu Nakagoshi Nopharipaldi Rohman, Slamet Nugraha, Yopi Nugroho, Agung Nurrofik, Agus Pramudya, Muhammad Alif Imam Putri Ramadhani, Putri Putri, Mulyadiane M. Putri, Nenis Try Melani Putri, Siti Aqila Kharisma Qothrun Izza Qothrun Izza Ramadani, Shima Reni Ambarwati Rijalullah, Muhammad Asyraf Rikardo, Novy Kurnia Riyanto, Awal Robiatul Adawiyah Rodiyati Azrianingsih Rosyada, Nabila Nur Rosyadah, Nuraini Rudi Candra Aditama Rudi Candra Aditama Septiadi, Luhur Shahroni, Abdul Mutholib Smith, Eric Nelson SRI RAHAYU Sugiharto, Arief Suharjono Sunu Kuntjoro Suparno, Kelik Supriyatna, Asep Takeshi Igawa, Takeshi Tesri Maideliza Tetep Tri Maharani Triani Widyanti, Triani Vendy Adrinanda Vendy Adrinanda Wafa, Imti Yazil Wardani, Erintha Eka Wibi Riawan Widodo Widodo WIDOWATI BUDIJASTUTI Widyananda, Muhammad Hermawan Winarsih Winarsih Zain, Dhiyaa Syahlaa Bianca Febrinnisa