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All Journal Abdimas Lembaran Ilmu Kependidikan Biogenesis: Jurnal Ilmiah Biologi Phenomenon : Jurnal Pendidikan MIPA Journal of Biology Education Unnes Science Education Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Biosaintifika: Journal of Biology & Biology Education Journal on Education Journal of Innovative Science Education JIKAP PGSD: Jurnal Ilmiah Ilmu Kependidikan Jurnal Puruhita Life Science Journal of Environmental and Science Education Jurnal Pemberdayaan Masyarakat Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology Jurnal Manusia dan Lingkungan Bookchapter Alam Universitas Negeri Semarang Proceeding Seminar Nasional IPA Prosiding Seminar Nasional Biologi Unnes Science Education Journal Journal of Biology Education Jurnal Dharma Indonesia Life Science
Sri Ngabekti
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Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Analisis Struktur dan Profil Vegetasi Mangrove di Kecamatan Sayung Kabupaten Demak ALIFIANSYAH, JUANDRA; Irsadi, Andin; Kartijono, Nugroho Edi; Ngabekti, Sri
Life Science Vol 13 No 1 (2024): May 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/lifesci.v13i1.74475

Abstract

Sayung District is one of the district in Demak Regency which has mangrove vegetation. The alteration of Demak Regency's coastal areas caused by the sea rob phenomenon has a significant impact on the mangrove vegetation. The Semarang-Demak toll road construction along Sayung coast potentially causes mangrove damage. The purpose of this study is to determine the structure and profile, and analyze the condition of mangrove vegetation in Sayung, based on the structure and profile of Sayung mangrove vegetation. The study was conducted on the mangroves of Bedono, Mondoliko, and Morosari Village. This research used an exploratory method with descriptive analysis, by collecting data on vegetation parameters and vegetation profiles. The results showed that the types of mangroves found at all observation stations consisted of Avicennia, Bruguiera, and Rhizophora. The profile graph shows an association between Avicennia alba, Avicennia marina, and Rhizophora mucronata. Important Value Index (IVI) for all stations shows that Avicennia officinalis have highest value on 65,30 and 50,18 respectively. Diversity index shows that both stations have value on 0,873 and 0,893 which belongs to low diversity. Similarity index on each sub-stations shows the significant difference between Bedono-A, Bedono-C, Mondoliko, and Morosari stations at 0,4 index, Based on Abiotic parameters such as pH, salinity, and water temperature found on the optimal quality standard level. The conclusion is mangrove vegetation structure dominated by Avicennia and Rhizophora groups, with a low level of diversity at all observation stations.
Pengaruh Laju Injeksi Karbondioksida terhadap Oksigen Terlarut dan Pertumbuhan Spirulina platensis Al Anshori, Aziz; Sri Ngabekti; Andhina Putri Heriyanti; Amnan Haris
Life Science Vol. 13 No. 2 (2024): November 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/unnesjlifesci.v13.i2.14327

Abstract

Indonesia has a high and continually increasing total greenhouse gas emission. Carbon dioxide absorption can be mitigated by utilizing the photosynthesis process of microalgae. Spirulina platensis was chosen as the sample to be cultivated in this study due to its ease of cultivation and its status as a large-scale carbon dioxide absorber. The objective of this research is to analyze the effect of varying carbon dioxide injection rates on dissolved oxygen and the growth of S. platensis. This research employed an experimental method involving semi-mass cultivation using a 12 L volume tube photobioreactor (PBR) as a container with three treatment variations. These variations included culture P0 (without injection/control), culture PA (0.5 L/minute), and culture PB (1 L/minute). The data analysis revealed that the variation with an increase in dissolved oxygen levels and enhanced growth of S. platensis was most optimal in culture PB (1 L/min). One-way ANOVA results showed significant differences between culture P0 (without injection) and classified data indicating that culture PB (1 L/min) fell into a high-level classification. The average dissolved oxygen value for culture PB (1 L/min) was 7.9 mg/L, with a cell density average of 0.651 cells/ml and a dry biomass weight of 3.8 grams. The conclusion drawn is that varying carbon dioxide injection rates significantly affect dissolved oxygen levels and the growth of S. platensis, as evidenced by cell density and biomass calculations. The effect on the S. platensis culture is a notable increase in both parameters. The application of varying carbon dioxide injection rates in the cultivation of S. platensis may serve as a reference for identifying the optimal carbon dioxide injection rate during semi-mass cultivation.
STRATEGI KONSERVASI ENERGI DI LINGKUNGAN KAMPUS UNNES SEKARAN Sultan, Habil; Ngabekti, Sri; Heriyanti, Andhina Putri; Fariz, Trida Ridho
Prosiding Seminar Nasional Biologi Vol. 12 (2024)
Publisher : Prosiding Seminar Nasional Biologi

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Abstract

Kampus UNNES Sekaran merupakan pusat kegiatan akademik maupun non akademik dengan jumlah civitas akademik yang terus bertambah setiap tahunnya. Hal tersebut berdampak pada meningkatnya aktivitas dan energi yang digunakan di lingkungan kampus . Penelitian yang mengkaji strategi konservasi terhadap energi yang digunakan untuk kegiatan operasional di lingkungan kampus. Hingga saat ini belum ditemukan.. Penelitian ini bertujuan untuk merumuskan strategi konservasi energi di lingkungan Kampus UNNES Sekaran dengan menggunakan analisis SWOT berdasarkan hasil kuesioner dan wawancara terhadap sampel dan pihak yang sudah ditentukan. Nilai IFAS dan EFAS pada penelitian ini berada pada kuadran I, sehingga strategi yang akan dirumuskan berfokus pada kekuatan dan peluang kampus dalam melakukan konservasi energi. Strategi konservasi energi yang dapat dilakukan di Kampus UNNES Sekaran yaitu melakukan kolaborasi dengan stakeholder terkait, mengoptimalkan produksi energi bersih, meningkatkan kemampuan teknis civitas akademik terhadap teknologi hijau, melakukan audit energi pada setiap unit kegiatan maupun gedung, dan mengembangkan sistem kelistrikan yang mandiri.
Keanekaragaman Pohon di FMIPA Universitas Negeri Semarang Berdasarkan Analisis Indeks Shannon-Wiener dan Status IUCN Ngabekti, Sri; Fariz, Trida Rdiho; Setyowati, Dewi Liesnoor; Wicaksono, Maulana Malik
Prosiding Seminar Nasional Biologi Vol. 13 (2025)
Publisher : Prosiding Seminar Nasional Biologi

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Abstract

Penelitian ini bertujuan untuk mengkaji keanekaragaman pohon serta status konservasinya di kawasan Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) Universitas Negeri Semarang (UNNES) sebagai bagian dari strategi konservasi dan mitigasi triple planetary crisis. Metode penelitian yang digunakan adalah survei eksplorasi dengan teknik jelajah pada seluruh area FMIPA, di mana setiap pohon diidentifikasi berdasarkan nama lokal dan ilmiah serta dihitung jumlah individunya. Data dianalisis menggunakan indeks keanekaragaman Shannon-Wiener (H’), sedangkan status konservasi mengacu pada IUCN Red List. Hasil inventarisasi menunjukkan terdapat 318 individu pohon yang tergolong dalam 58 spesies. Spesies yang paling dominan adalah Swietenia mahagoni (76 individu), Mangifera indica (45 individu), Polyalthia longifolia (39 individu), dan Roystonea regia (26 individu). Nilai indeks Shannon-Wiener sebesar H’ = 2,95 termasuk kategori sedang menuju tinggi, menandakan komunitas pohon di FMIPA cukup beragam dan stabil. Berdasarkan status konservasi, sebagian besar spesies termasuk kategori Least Concern (LC), namun ditemukan pula spesies yang tidak umum, yaitu Pterocarpus indicus berstatus Endangered (EN) dan Swietenia mahagoni berstatus Near Threatened (NT). Keberadaan spesies langka tersebut memperkuat peran FMIPA UNNES tidak hanya sebagai ruang terbuka hijau penyerap karbon, tetapi juga sebagai kantong konservasi keanekaragaman hayati di kawasan kampus. Dengan demikian, hasil penelitian ini dapat dijadikan dasar strategi konservasi kampus yang mendukung upaya mitigasi perubahan iklim, perlindungan biodiversitas, dan pengendalian polusi dalam kerangka triple planetary crisis serta kontribusi terhadap target nasional Net Zero Emission 2060.
Building Environmental Literacy: A Green Literacy Bootcamp Model for an Eco-School within a Coastal Community Amelia, Rizki Nor; Ngabekti, Sri; Kholil, Putri Alifa; Jabbar, Abdul; Listiaji, Prasetyo
Jurnal Pemberdayaan Masyarakat Vol 4, No 4 (2025)
Publisher : Yayasan Keluarga Guru Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46843/jpm.v4i4.577

Abstract

Coastal schools are highly vulnerable to the impacts of climate change, including tidal flooding, erosion, and seawater intrusion, which disrupt educational processes and compromise community resilience. Strengthening environmental literacy within the eco-school framework is therefore essential to develop adaptive knowledge, critical thinking, and sustainable behavior among students. This community service project implemented a Green Literacy Bootcamp at SMP Negeri 25 Semarang, involving 45 students identified as prospective Green Warriors. The program comprised three phases: a two-day intensive training, a three-month follow-up, and a final reflection. Activities included communication workshops, creative campaigns, eco-project simulations, and student-led projects on waste management, urban farming, and tidal flood mitigation. The program was evaluated using a pre-post environmental literacy test and structural model analysis, complemented by a satisfaction survey. Results showed a substantial improvement in environmental literacy, with the largest gains observed in environmental hope and cognitive skills. Students also reported high satisfaction with the learning experience. This study contributes to the field of environmental education by offering a validated and replicable model for strengthening multidimensional environmental literacy and supporting eco-school development in coastal communities facing climate change challenges.
Keanekaragaman Spesies Arthropoda di Badan Air dan Sekitar Mata Air Kecamatan Gunungpati, Kota Semarang: Diversity of Arthropod Species in Water Bodies and Around Springs in Gunungpati District, Semarang City Novianti, Ira; Nana Kariada Tri Martuti; Partaya; Sri Ngabekti
Life Science Vol. 14 No. 2 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/unnesjlifesci.v14.i2.28890

Abstract

Arthropods are the largest phylum in the Animalia kingdom that can live on land, in freshwater, in the sea, or in the air. Springs are bodies of water that seep out through cracks in rocks to the surface of the ground, serving as a habitat for various Arthropods and the Gunungpati district has several springs in its area. This study aims to analyze the diversity of arthropod species and to describe the abiotic and biotic factors that influence the diversity of arthropod species in the water bodies and around the springs in the Gunungpati district, Semarang City. The research was carried out from October to December 2022, located at five springs, among others. The research was conducted from October to December 2022 at five springs, namely Sendang Jedung, Sendang Lanang Trangkil, Sendang Ndelik, Sendang Mbiru, and Sendang Gede. The data collection method was purposive sampling. The approach used in this research is a quantitative approach with a descriptive research type. The research results showed a total of 1537 individuals and 112 species of arthropods, which included 146 individuals in water bodies and 1391 individuals around springs. The diversity index ranged from moderate to high, between 1.82-3.30. The dominance index values were low, ranging from 0.05-0.29, and the evenness index values fall within moderate to high criteria, ranging from 0.52-0.86. The Sorenson similarity index on the five ponds is considered low. Abiotic factors do not affect diversity too much because it has similar values in the five springs. Therefore, biotic factors (organic matter, litter, and surrounding vegetation) greatly influenced the diversity of arthropod species in water bodies and around the spring in Gunungpati District, Semarang City.  
Co-Authors A.A. Ketut Agung Cahyawan W Abdillah, M.L. Abdul Jabbar Adina, Winardita Putri Aditya Marianti Afif, Jamaludin Agus Setiowati, Agus Al Anshori, Aziz ALIFIANSYAH, JUANDRA Amin Retnoningsih Amin Yusuf Amnan Haris Andhina Putri Heriyanti Andin Irsadi Andreas Priyono Budi Prasetyo Ani Rusilowati Astuti, Eni Dwi Bambang Priyono Bayuntoro, Johan Tri Budi Astuti D. Maria Darning Rakhmawati, Darning Desi Rahmasuci Devi Alvitasari, Devi Dewi Liesnoor Setyowati Dewi, Rizqi Mareta Diennurrahma, Aufa Dwi Prasetyo Dyah Rini Indriyanti Eling Purwantoyo ENDAH KUSUMAWATI Endang Susilaningsih Enni Suwarsi Rahayu Eny Hartadiyati Wasikin Haryanti Erie Triwijananti, Erie Erisca Candra Setyana Evi Setyowati, Evi Fadlillah, Umi Fariz, Trida Rdiho Fatmawati, Titi Fauziah, Ismarlini Nur Fauziah, Ismarlini Nur Febrianto, Taufan Handayani, Octarina Tri Haris, Amnan Herditiya, Herditiya Heriyanti, Andhina Putri Heru Susilo Husna, Destri Nurul Husna, Destri Nurul Ilma, Nailul Indrayanti, Inggrid Intan Zainafree Jati, Anis Lina Johan Tri Bayuntoro, Johan Tri KARTIKA WIDYANINGRUM Kartuti, Kartuti Khikmatun, Laili Kholil, Putri Alifa Kisworo Kisworo, Kisworo Krispinus Kedati Pukan Kukuh Santoso Kukuh Santoso Labibah, V.R. Lathifah, Nila Nadiyya Lianita Rarasandy Lilis Erfianti Linda Noviyanti Linda Noviyanti Lisdiana Lisdiana Listiaji, Prasetyo Ma'rufah, Dian Muhimmatun Margareta Rahayuningsih Nugroho Edi K Masduqi, Mahbub Mayang Arundina Mayang Arundina Muhamad Mustofa, Muhamad Muhammad Abdullah Mulia, Vivin Lesandra Mutiara Nurul Lita Azizah Nafi'ah, Miftahun Nana Kariada Tri Martuti Nana Kariada Trimartuti Nanik Wijayati Ning Setiati Novianti, Ira Noviyanti, Linda Nugrahaningsih Wahyu Harini, Nugrahaningsih Wahyu Nugroho Edi Kartijono Nur Kusuma Dewi Nurmasitoh, Qonita Amalia Nurul Azmi Nurul Setiyanika Parmin Parmin Partaya Partaya, Partaya Partaya, Partaya Pit’ay, Marisa Fonny Pradyna Niata WA Pratama, Yesy Milda Paula Priyantini Widiyaningrum Putri, Devita Roesikusuma R. Rijanta Ragilia Novitasari, Ragilia Retno Sri Iswari Retno Sri Iswari Rifana Habiba Risa Dwita Hardianti Rizki Nor Amelia Rizqiyah, Iffatur S. Djalal Tandjung S. Djalal Tandjung Saiful Ridlo Sanjivanie, Hasti Apri Satria, Arif Bayu Setianingsih, Rizki Sigit Saptono Siti Aminah Siti Aminah Sovi Junita Eviyanti Sri Mulyani Endang Susilowati, Sri Mulyani Endang Sri Sukaesih Sri Suryaningsih Sri Widowati Sudarmin Sudarmin Sudaryati Sudaryati Sugiyanto R. Sugiyanto Sugiyanto Sugiyanto R. Sugiyanto Sugiyanto, Sugiyanto R. Sugiyanto Sulaiman, Meltasari Sultan, Habil Sumardani Sumardi . Susani, Devi Erfa Susani, Devi Erfa Sutopo, Agung Suwarti Suwarti Swarsi Rahayu, Enni Talitha Widiatningrum Tefarani, Rahmadyan Trida Ridho Fariz Tyas Agung Pribadi, Tyas Agung Ulfa, Dwi Mariana WA, Pradyna Niata Wahid Aksin Budi NS Wahyuningsih, Penny Watoni, Edi Satria Wicaksono, Maulana Malik Widyaningrum, Priyantini Wiyanto Wiyanto Woro Sumarni Wulan, Intan Nawang Wuryadi Wuryadi Wuryadi Wuryadi Yesy Milda Paula Pratama Yulalifah, Lilif Yustinus Ulung Anggraito Zubail, Dien Rosiana Zuhrotunnisa, Asri