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All Journal Journal of Natural Sciences and Mathematics Research Jurnal Biogenerasi
Eko Purnomo
Universitas Islam Negeri Walisongo Semarang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Other

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Analyzing causes of the death of Ferns (Pteridophyta) in the Padang Savana, Taman Nasional Bromo Tengger Semeru (TN-BTS) Eko Purnomo; Nilana Izzati; Robbi Mauizzatul Hikmah; Diyana Sabila Rusydina; Lathifah Nurul Fauzi; Ibnu Sina Rafiq Romawan
Journal of Natural Sciences and Mathematics Research Vol 7, No 2 (2021): December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.2021.7.2.11074

Abstract

The Padang Savana area of Bromo Tengger Semeru National Park (TN-BTS) is located at an altitude of 750-3676 m above sea level so that it has a high biodiversity with a distinctive vegetation character. Ferns (Pteridophyta) is one of the vegetation that dominates about 35% of the Bromo Conservation Area. The ferns in the location show a dry and dead physical condition. This study aims to analyze the causes of death of ferns (Pteridophyta) in the Padang Savana Bromo Tengger Semeru National Park. The research method used is a qualitative descriptive method and the data obtained from direct observation to the savanna of Bromo Tengger Semeru National Park (TN-BTS) and face-to-face interviews without guidance to resource persons. The sampling location is at an altitude of 2026 masl, temperature 24.4°C, air pressure 792.5 HPA, with the object of research in the form of a sprig of ferns (Pteridophyta) complete with dead leaf roots and is considered to represent all ferns (Pteridophyta) in the savanna. The data obtained from the resource persons were then analyzed using literature studies. The results showed that the death of ferns (Pteridophyta) was caused by several factors such as the presence of allelopathic substances produced from Imperata cylindrica, soil texture, and eruption disasters. Thus, the surrounding environment is very influential on the life of ferns (Pteridophyta) The results showed that the death of ferns (Pteridophyta) was caused by several factors such as the presence of allelopathic substances produced from Imperata cylindrica, soil texture, and eruption disasters. Thus, the surrounding environment is very influential on the life of ferns (Pteridophyta) The results showed that the death of ferns (Pteridophyta) was caused by several factors such as the presence of allelopathic substances produced from Imperata cylindrica, soil texture, and eruption disasters. Thus, the surrounding environment is very influential on the life of ferns (Pteridophyta). ©2021 JNSMR UIN Walisongo. All rights reserved.
POTENSI KERAGAMAN IKAN DI WADUK KEDUNG OMBO SEBAGAI PENYEDIA KEBUTUHAN PANGAN BERKELANJUTAN Eko Purnomo; Syifara Chika
Jurnal Biogenerasi Vol. 7 No. 1 (2022): Volume 7 Nomor 1 tahun 2022
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v7i1.1679

Abstract

The program to build food security can be applied to several aspect such as food safety, food availability, affordability, and food distribution. The program is carried out so that humans can manage natural resources for the availability of food needs in a sustainable manner. One of the most important foods is fish. Fish contains high protein, omega 3 fatty acids, and other nutritional. The purpose of this study was to determine the potential of fish diversity in the Kedung Ombo reservoir as a provider of sustainable food needs. The research method uses survey and literature review. Based on the results of the literature study, it was found that there were 13 types of fish and came from 7 families. The fish species include parrot fish (Oreochromis niloticus), tilapia fish (Oreochromis mossambicus), Catfish (Pangasius sutchi), tawes fish (Barbodes gonionatus) and betutu fish (Oxyeleotris marmorata). In fish farming activities, one of them must be carried out properly, one of which is by paying attention to the concept of inland public waters in a sustainable manner so that its easy for the community to meet their food needs
Effectiveness of Hydrilla verticillata (L.F.) Royle as a phytoremediation agent in Kaligarang River raw water Chusnul Adib Achmad; Yunita Dwi Lestari; Eko Purnomo
Journal of Natural Sciences and Mathematics Research Vol. 10 No. 1 (2024): June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.v10i1.20106

Abstract

The main source of pollutants is the impact of domestic (household waste), which pile up due to high population levels. The accumulation of domestic waste produces wastewater containing heavy metals, including iron (Fe), which is then absorbed into the ground and flows into rivers. Phytoremediation is a method that can remove, absorb, destroy, and degrade pollutants, including heavy metals, in water. Hydrilla verticillata (L.f.) Royle has become a plant known as a good phytoremediator agent. This research aims to determine morphological changes and the effect of phytoremediation Hydrilla verticillata (L.f.) Royle will remediate the water of the Kaligarang River with an exposure time of 5 and 10 days. The testing of iron level (Fe) is done using analysis with atomic absorption spectroscopy (AAS). The results obtained were that the iron (Fe) content was originally 1.2222 mg/L, decreased as much as 0.9539 mg/L in treatment S1 with an average value of 0.1683 mg/L, and in treatment S2 decreased to 0.3557 mg/L with an average value of 0.766.
Co-Authors Chusnul Adib Achmad Diyana Sabila Rusydina Ibnu Sina Rafiq Romawan Lathifah Nurul Fauzi Nilana Izzati Robbi Mauizzatul Hikmah Syifara Chika Yunita Dwi Lestari