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Lalu Japa, Lalu
Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan Universitas Mataran Jl. Majapahit No. 62 Mataram
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Community Structure of Phytoplankton in The Waters of Bagek Kembar Mangrove Ecosystem Essential Area, Sekotong, West Lombok Jamiyyah, Shafro' Khuluq; Japa, Lalu; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8617

Abstract

The Bagek Kembar Essential Ecosystem Area (EEA) is one of the mangrove forest areas in Lombok Island. This mangrove forest area is managed and developed into an educational tourist attraction (Ecotourism) to know various types of mangroves. The existence of Bagek Kembar mangrove Ecotourism is very important to support the economic income of the surrounding community. The existence of these various activities will potentially affect the balance of the mangrove ecosystem and the biota that live in there. This study aims to determine the composition of phytoplankton species and the condition of their diversity in the waters of the Bagek Kembar Mangrove Essential Ecosystem Area, West Lombok. Descriptive exploratory research was the methodology used. A 20 µm plankton net was used to filter 100 L of water in order to sample phytoplankton. Formalin at a 4% concentration was then used to preserve the filtered water samples. Individual abundance, evenness, dominance, and the index of species diversity were computed in order to analyze the data. The findings revealed that there were five divisions and 84 phytoplankton species. The Bagek Kembar Mangrove Essential Ecosystem Area's waters had an average phytoplankton abundance of 2,770 ind/L. The species dominance index of phytoplankton was 0.192 (low category), the species evenness index of phytoplankton was 0.633 (evenly distributed), and the average phytoplankton species diversity index of 2.296 was categorized as moderate. According to the findings of this study, the phytoplankton community's stability in the waters of the Bagek Kembar Mangrove Essential Ecosystem Area fell into the medium range.
Analysis of Chlorophyll and Vegetative Growth of Green Eggplant (Solanum Malongena L.) Based on NPK and Bokashi Fertilizer Application Nabila, Hesti; Raksun, Ahmad; Japa, Lalu
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4.10334

Abstract

The availability of vital macronutrients from NPK fertilizer and the enhancement of soil fertility with bokashi organic fertilizer have a significant impact on the vegetative growth of green eggplant (Solanum melongena L.). This study aims to determine the effect of NPK, bokashi, and a combination of both on the chlorophyll content and vegetative growth of green eggplant. NPK fertilizer dosage (0 g, 1 g, 1.5 g, and 2 g) and bokashi fertilizer dosage (0 g, 100 g, 200 g, 300 g, and 400 g) were the two components in this study, which employed a completely randomized design (CRD) with three replicates. Plant height, leaf count, leaf area, fresh weight, dry weight, and chlorophyll content were among the metrics measured. ANOVA at the 5% level and DMRT were used to analyze the data. The findings demonstrated that the chlorophyll content and other vegetative growth indices were significantly impacted by NPK fertilizer. Chlorophyll content was not considerably impacted by the bokashi fertilizer application, however all vegetative growth indices were significantly impacted. With the exception of leaf area, the combination of NPK and bokashi fertilizers did not substantially affect most measures. The combination of 400 g bokashi and 2 g NPK yielded the highest vegetative growth indices and was the best treatment. Meanwhile, the combination of NPK 2 g and bokashi 300 g produced the maximum chlorophyll content. Through the use of integrated organic and inorganic fertilization, this study demonstrates how adding bokashi to NPK fertilizer can boost plant growth and nutrient use efficiency, helping to create sustainable farming methods.
Pengenalan Komunitas Mikroalga untuk Penguatan Literasi Kebaharian pada Siswa SMA Negeri 1 Sekotong Lombok Barat Japa, Lalu; Karnan; Ahmad Raksun; Didik Santoso; Gito Hadiprayitno; Safarianti Manisa; Syafro’ Khuluq Jam’iyyah
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 4 (2025): Oktober-Desember 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i4.13115

Abstract

Kawasan Ekosistem Essensial (KEE) Bagek Kembar, Sekotong Lombok Barat, meliputi daratan dan perairan pesisir sangat penting artinya bagi masyarakat sekaligus paling besar menanggung beban akibat berbagai aktivitas di dalamnya. Aktivitas masyarakat di sekitar KEE Bagek Kembar, meliputi kegiatan pertanian, peternakan, perikanan, ekploitasi sumber daya alam dan jasa lingkungan. Menyadari pentingnya pelestarian sumber daya pesisir dan laut, maka diperlukan upaya nyata dalam pengendalian dampak negetif yang terjadi akibat berbagai aktivitas yang terjadi di dalamnya. Komunitas fitoplankton (mikroalga) seringkali digunakan sebagai tolok ukur kesehatan lingkungan perairan. Salah satu upaya pengendalian dimaksud di atas adalah melalui jalur pendidikan formal di sekolah yaitu penanaman cinta bahari sejak dini agar sumber daya kebaharian dapat dilestarikan dan pemanfaatannya bisa berkelanjutan. Kegiatan pengabdian ini bertujuan untuk: (1) Memperkenalkan komunitas mikroalga sekaligus meningkatkan literasi kebaharian pada siswa kelas alam SMAN 1 Sekotong, sebagai salah satu sekolah yang berada di wilayah KEE Bagek Kembar Desa Cendi Manik, Sekotong, Lombok Barat. Siswa kelas alam SMAN 1 Sekotong dilibatkan secara aktif dalam pembelajaran klasikal dan diskusi terkait materi tentang komunitas mikroalga dalam upaya peningkatan pengetahuan dan penguatan literasi kebaharian mereka. Kegiatan pengabdian ini diharapkan juga dapat menjadi penguatan dan pengayaan pengetahuan terhadap materi mata pelajaran biologi khususnya. Pengetahuan tentang komunitas mikroalga selanjutkan dapat memperkaya literasi kebaharian siswa kelas alam SMAN 1 Sekotong Lombok Barat. Dalam jangka panjang, kegiatan pengabdian ini diharapakan bisa menghasilkan suatu model pembelajaran terintegrasi guna meningkatkan literasi kebaharian siswa dimana pengetahuan kebaharian dimasukkan sebagai bagian dari bahan yang diajarkan (silabus) dalam pembelajaran materi biologi di sekolah, khususnya SMAN 1 Sekotong Lombok Barat.
Pengenalan Ekosistem Mangrove untuk Penguatan Literasi Kebaharian Pada Siswa SMPN 2 Pujut Lombok Tengah Japa, Lalu; Syukur, Abdul; Karnan; Zulkifli, Lalu; Winata, I Gede Darma; Dianam
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 4 (2023): Oktober-Desember 2023
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i4.6550

Abstract

Wilayah pesisir dan lautan sangat penting artinya bagi masyarakat. Sebagai akibat dari aktivitas dimaksud, tidak bisa dipungkiri, bahwa kondisi sumber daya alam pesisir dan laut mengalami penurunan. Penurunan kondisi sumber daya strategis ini disebabkan oleh dua faktor, alami dan manusia (antropogenik). Dari kedua faktor yang menyebabkan kerusakan lingkungan bahari ini, hanya faktor antropogenik yang bisa dikendalikan dalam upaya meminimalisir kerusakan yang terjadi. Salah satu upaya pengendalian dimaksud adalah melalui jalur pendidikan formal di sekolah yaitu penanaman cinta bahari sejak dini agar sumber daya kebaharian dapat dilestarikan dan pemanfaatannya bisa berkelanjutan. Kegiatan pengabdian ini bertujuan untuk: meningkatkan literasi kebaharian siswa SMPN 2 Pujut sebagai salah satu sekolah yang berada di kawasan KEK Mandalika melalui pengenalan ekosistem mangrove. Untuk maksud di atas, maka siswa SMPN 2 Pujut dilibatkan secara aktif menelaah dan berdiskusi terkait materi tentang ekosistem mangrove bedasarkan buku ekowisata ekosistem mangrove. Dalam jangka panjang, kegiatan pengabdian ini diharapakan bisa menghasilkan suatu model pembelajaran terintegrasi guna meningkatkan literasi kebaharian siswa dimana pengetahuan kebaharian akan dimasukkan sebagai bagian dari bahan materi yang diajarkan (silabaus) pembelajaran di sekolah. Dalam jangka pendek, diharapkan bisa menghasilkan profile literasi kebaharian siswa di KEK Mandalika sebagai bahan untuk menyusun bahan ajar yang terintegrasi guna meningkatkan literasi kebaharian siswa sebagaimana amanat dan tuntutan kurikulum merdeka yang sudah mulai dilaksanakan termasuk di SMPN 2 Pujut Lombok Tengah.
Peranan Mahasiswa Asistensi Mengajar Dalam Kegiatan Intrakurikuler Pada Mata Pelajaran Biologi di SMA 1 Narmada Sopiatuzza’rah; Nurhidayati, Rosa; Arifin, Rizki Dewi Sativa Lestari; Japa, Lalu; Hariadi, Ismawan; Hartiwi, Mei
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 1 (2024): Januari - Maret
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i1.7439

Abstract

Asistensi mengajar adalah kegiatan yang dilakukan oleh mahasiswa untuk mendukung peningkatan kualitas pembelajaran di dalam dan di luar kelas melalui pemanfaatan dan pengembangan media teknologi informasi. Program ini dikelola oleh Universitas Mataram untuk memberikan pengalaman di luar kampus kepada mahasiswa, terkait pengembangan diri melalui kegiatan di luar perkuliahan. Tujuan utama program ini adalah memberikan solusi bagi satuan pendidikan dasar, menengah, dan atas untuk meningkatkan mutu pendidikan secara menyeluruh dengan memanfaatkan pengetahuan dan keterampilan mahasiswa dalam berbagai bidang ilmu. Selama pelaksanaan kegiatan asistensi mengajar, mahasiswa ikut berpartisipasi aktif dalam berbagai program yang dilaksanakan di SMAN 1 Narmada baik akademik dan non akademik. Dalam kegiatan akademik, mahasiswa mendampingi guru dalam pembelajaran kooperatif tipe two stay two stray (TSTS). Pada kegiatan pembelajaran tipe two stay two stray (TSTS) siswa diminta untuk menscan barcode tentang materi dan soal yang berbeda antara kelompok yang satu dengan kelompok lain. Selanjutnya siswa berdiskusi dalam kelompok masing-masing dan mempresentasikan hasilnya. Terjadi peningkatan hasil ujian pretest dan posttest sebesar 20% (dari 65% menjadi 85%). Pembelajaran dengan melalui tipe two stay two stray (TSTS) efektif meningkatkan motivasi dan hasil belajar siswa.
Aplikasi Kompos Kotoran Kambing pada Budidaya Tanaman Terung di Dusun Mertak Umbak Kecamatan Praya Lombok Tengah Raksun, Ahmad; Karnan; Zulkifli, Lalu; Santoso, Didik; Japa, Lalu
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 2 (2024): April-Juni
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i2.8019

Abstract

Kegiatan pengabdian kepada masyarakat tetang aplikasi kompos kotoran kambing pada budidaya tanaman terung telah dilakukan di Dusun Mertak Umbak Kecamatan Praya Kabupaten Lombok Tengah. Mitra kegiatan pengabdian adalah 10 orang petani yang berdomisili di RT 01 Dusun Mertak Umbak Desa Mertak Tombok. Ada 2 permasalahan yang dihadapi mitra, yaitu: mitra belum memiliki pengetahuan tetang cara pengolahan sampah organik menjadi suatu produk yang bermanfaat. Permasalahan kedua adalah tingginya biaya usaha pertanian yang disebabkan oleh tingginya jumlah pupuk kimia yang diperlukan dan harus dibeli oleh mitra dengan harga yang mahal. Penyelesaian masalah pertama dilakukan dengan mengolah sampah organik menjadi kompos dan penyelesaian masalah yang kedua dilakukan dengan melakukan pemupukan tanaman menggunakan kompos. Ujicoba aplikasi kompos dilakukan pada tanaman terung hijau. Pada pelaksanaan kegiatan pengabdian kepada masyarakat ini, mitra terlibat secara aktif mulai dari awal sampai dengan akhir kegiatan. Setelah berakhirnya kegiatan ini mitra dapat melakukan pengolahan sampah organik menjadi kompos serta mendapatkan pengetahuan dan keterampilan dalam aplikasi kompos pada lahan pertanian.
Public Perceptions of Ecotourism in Bagek Kembar Mangrove Essential Ecosystem Area, Sekotong, West Lombok Hadiprayitno, Gito; Suana, I Wayan; Syazali, Muhammad; Japa, Lalu; Santoso, Didik; Suyantri, Eni
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.5221

Abstract

Bagek Kembar mangrove ecotourism is a new tourist destination. Therefore, further management is needed by involving the public and related parties. In this regard, a study aimed to analyze public perceptions of ecotourism in the mangrove in Bagek Kembar. Public perception data was collected through a questionnaire combined with interviews. Respondents were determined by purposive technique and grouped into the general public, ecotourism managers, and tourists. Research data were analyzed descriptively and inferential statistics. Interpretation of the average value of respondents' perceptions of the Bagek Kembar mangrove ecotourism is grouped into four categories: low, moderately low, moderately high, and high. The results showed that the public perception of the Bagek Kembar mangrove ecotourism is moderately high (average score of 0.60). Meanwhile, the increase in facilities and infrastructure, as well as access to ecotourism, was perceived by respondents as moderately low, with an average score of 0.49 (facilities and infrastructure) and 0.48 (road access to ecotourism). All respondents (100%) stated that the Bagek Kembar mangrove ecotourism must be further managed and developed. Although most respondents (75%) stated that the Bagek Kembar mangrove ecotourism had been well managed
Evaluation of Insecticidal Performances of Jayanti Plant (Sesbania sesban) for Integrated Control of Cabbage Caterpillar (Plutella xylostella) Suripto, Suripto; Japa, Lalu; Ahyadi, Hilman; Rahayu, Rachmawati Noviana
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.5635

Abstract

The study on the use of local natural materials as a source of insecticides is intended, among other things, to reduce farmers' dependency on using synthetic chemicals. This research was conducted to obtain the most selective insecticidal active ingredient from Sesbania sesban plant for controlling cabbage caterpillars, choose a target mode of action that has a safe impact on the environment, and determine insecticidal stability during storage of the material prior to application and its stability in water after application.  The dried powder of S. sesban leaves was extracted in stages using a series of solvents, namely hexane, DCM, ethanol and water, respectively.  Each of the extract fractions produced was tested for its lethal toxicity against Plutella xylostella larvae and Diadegma semiclausum imago. Each of mortality data were processed by probit analysis to produce LC50(s) to determine their insecticidal selectivity. Subsequent bioassays were carried out using extract-water of S. sesban leaves and the data were processed by probit analysis to determine their anti-ovipositor, ovicidal powers and anti-feedant properties against P. xylostella. The insecticidal stability of S. sesban was also studied according to variations in the storage time of the simplicia before extraction, the storage time of the extract before dissolution, and its stability in water during application. The data was processed using ANOVA. The results show that the insecticidal activity of the ethanol extract fraction of S. sesban leaves for controlling cabbage caterpillars was very selective, namely very toxic to P. xylostella but very less toxic to D. semiclausum. Against P. xylostella, S. sesban leaf extract has also been proven to significantly prevent oviposition, inhibit egg hatching and feeding activity. The insecticidal power of S. sesban did not decrease significantly during storage of the simplicia for less than three months and during storage of the extract for less than seven days. However, the toxicity of the extract solution decreased drastically after 24 hours of application
Pengembangan Komik Sains Cacing Nyale Sebagai Media Pembelajaran Pendukung Materi Biologi di Sekolah Menengah Pertama Handayani, Baiq Sri; Bachtiar, Imam; Japa, Lalu; Bahri, Syamsul; Sukma, Izza Melati
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.7123

Abstract

Media that discusses Nyale worm material in detail and clearly has never been developed before. This research aims to develop Nyale worm science comics as supporting media for biology learning in schools. The type of research used is research and development (R&D) using the Plomp model which consists of 5 stages. However, this research was only carried out up to stage 4, namely preliminary investigation, design, realization/construction, as well as tests, evaluation and revision. The subjects of this research were MTs Nurul Jannah students for the 2022/2023 academic year, totaling 35 students. The data collection technique uses a questionnaire sheet to obtain validity data and student responses. The data obtained was then analyzed descriptively. The research results show that science comics and nyale worms received an average of 83.93% based on material experts, 91.20% based on media experts with a very decent category. Based on user responses, the Nyale Worms comic received a score of 71.92% in the decent category. This research concludes that the Nyale worm science comic is suitable for use in the learning process to increase students' interest in learning.
A Strengthening Strengthening Microalgae Biodiesel Production Capacity Based on Strain Selection for Chaetoceros amini, Nannochloropsis oculata and Nitzschia spp. Suripto, Suripto; Japa, Lalu
Jurnal Penelitian Pendidikan IPA Vol 10 No 12 (2024): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i12.9589

Abstract

Increasing microalgae biodiesel production through improvement of biomass production is reversible and is often considered economically unprofitable. This research aims to determine the effect of various levels of media salinity stress in producing microalgae strains that have higher oil content than the original population. Three species of microalgae are known to be capable of producing biodiesel, namely Chaeticheros amini, Nannochloropsis oculata and Nitzschia spp. isolated from Sekotong coastal waters, West Lombok, then cultivated in bioreactor systems for seven days with salinity stress treatment to produce strains. The resulting strains were cultivated again, but without salinity stress. Microalgae cell density was observed every day and harvested on the seventh day. The resulting microalgae biomass was extracted in stages to produce biodiesel oil. The results showed that after cultivation under salinity stress, S20, S25, S30, and S35 strains were produced from each of these species. Under salinity stress, all strains except S25 of Nitzschia spp. showed a higher maximum cell density compared to the original population and were reversible respectively. Each of the S25 strains of C. amini and N. oculata, S20 and S25 strains of Nitzschia spp., had a higher oil content than the original population, each of which was permanent
Co-Authors A. Wahab Jufri Abdul Syukur Agil Al Idrus, Agil Al Ahmad Raksun Ahmad Raksun, Ahmad Arifin, Rizki Dewi Sativa Lestari Ario Kusuma, Dipo Astika, Leni Baiq Sri Handayani Budiawan Budiawan Dadi Setiadi Dianam Didik Santoso DIDIK SANTOSO Dining Aidil Candri, Dining Aidil Fidyantini, Findi Gito Hadiprayitno Gito Hadiprayitno Handayani, Sri Hariadi, Ismawan Hartiwi, Mei Hidayat, X Zardht Alex Hilman Ahyadi I WAYAN SUANA Ilhamdi, Mohammad Liwa Imam Bachtiar Jamiyyah, Shafro' Khuluq Karnan Karnan Khairuddin Kurniawan, Ramdani LALU ZULKIFLI Lestari, Tri Ayu Manisa, Safariyanti Mawaddah, Usratul Muazzasari, Fitra Muizzatissalmi, Hadyatul Munawaroh, Anggi Nurhardiyanti Nabila, Hesti Nadiyah, Nurfadhilah Nafi'ah, Zidna Ilma Nanisfi, Maulidatin Ni Luh Putu Pebri Artayani . Noviani, Echa Nur Hasanah Nurhidayati, Rosa PRAPTI SEDIJANI, PRAPTI Purnamawati, Rena Rahayu, Rachmawati Noviana Safarianti Manisa Sarnia, Saza Shofiana, Dwi Auliya Sopiatuzza’rah Sopiyani, Nuzula Sukma, Izza Melati Suripto Suripto SUYANTRI, ENI Syafro’ Khuluq Jam’iyyah Syamsul Bahri Syazali, Muhammad Tri Wahyu Setyaningrum, Tri Wahyu Ulfaturrahmi, Martina Winata, I Gede Darma Yayuk Andayani Yusrianti, Rosita