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Jefri, Edwin
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Keanekaragaman Jenis Lamun Di Perairan Gili Gede, Lombok Barat Rahman, Ibadur; Nurliah, Nurliah; Himawan, Mahardika Rizki; Jefri, Edwin; Damayanti, Ayu Adhita; Larasati, Chandrika Eka
Journal of Marine Research Vol 10, No 4 (2021): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v10i4.32282

Abstract

Padang lamun merupakan salah satu ekosistem laut yang penting karena berfungsi sebagai habitat beragam jenis, sebagai pemerangkap substrat perairan, peredam gelombang, pendaur ulang zat hara, dan sebagai penyerap sejumlah besar karbon dari atmosfer (blue cabon). Dewasa ini kondisi kesehatan ekosistem lamun senantiasa mengalami penurunan/degradasi, padahal ekosistem lamun menopang sejumlah besar kelangsungan hidup makhluk hidup lainnya bahkan beberapa di antaranya berdampak langsung terhadap manusia. Maka dari itu, perlu dilakukan kajian mengenai kondisi padang lamun yang hasilnya dapat dijadikan bahan pertimbangan dalam pembuatan kebijakan yang berkaitan dengan penataan kawasan perairan agar tetap berorientasi pada upaya pelestarian ekosistem. Penelitian ini bertujuan untuk mengkaji stuktur komunitas lamun di perairan Gili Gede, Kecamatan Sekotong, Kabupaten Lombok Barat. Pengamatan jenis dan persentase penutupan lamun menggunakan kuadran transek berukuran 50cm x 50cm. Pengukuran nilai parameter kualitas air dilakukan secara insitu di lapangan dan di Laboratorium Balai Perikanan Budidaya Laut (BPBL) Sekotong, Lombok Barat. Hasil penelitian menujukkan bahwa komunitas padang lamun di perairan Gili Gede tersusun atas 4 (empat) jenis, yaitu: Halophilla pinifolia, Cymodocea rotundata, Enhalus acoroides, dan Thalassia hemperichii dengan persentase penutupan berkisar antara 17-47%, dan rerata penutupan sebesar 35%. Jenis lamun Enhalus acoroides merupakan jenis yang memiliki kontribusi paling tinggi dalam komunitas padang lamun di perairan Gili Gede.  Seagrass is an important marine ecosystem because of its function as habitat for various species, as substrate trapper, wave reducer, nutrient recycler, and as an absorber of large amounts of carbon from the atmosphere (blue cabon). Today, the condition of seagrass ecosystems is constantly decreasing, even though seagrass ecosystems support a large number of other living things, some of which have a direct impact on humans. Therefore, it is necessary to conduct a study on seagrass community structure whose the results can be taken into consideration in making policies related to the arrangement of water areas so that it remain oriented towards ecosystem conservation efforts. This study aims to examine the structure of the seagrass community in Gili Gede, Sekotong District, West Lombok Regency. Observation of the type and percentage of seagrass cover using a 50cm x 50cm transect quadrant. The analysis of water quality parameter was carried out at the Laboratory of Marine Cultivation Fisheries Center (BPBL) Sekotong, West Lombok. The results showed that the seagrass communities in Gili Gede were composed of 4 (four) species, namely: Halophilla pinifolia, Cymodocea rotundata, Enhalus acoroides, and Thalassia hemperichii with a cover percentage ranging from 17-47%, and an average cover of 35%. The seagrass species, Enhalus acoroides, is the species that has the highest contribution to the seagrass community in Gili Gede 
TEKNIK NURSERY DAN OUT-PLANTING SEBAGAI UPAYA PELESTARIAN MANGROVE DI DUSUN SIUNG, SEKOTONG, LOMBOK BARAT Ibadur Rahman; Fadillah, Fitri; Devi, Lokita; Z, Muhammad Fayyadh A.; Sultansyah, Muhammad; Siahaya, Patrick Alexander; Ta'yuni, Qur'a; Asmileen, Suci Dwi; Utami, Widia Tri; Jefri, Edwin; Wahyudi, Rhojim; Damayanti, Ayu Adhita; Himawan, Mahardika Rizqi; Lestrariningsih, Wiwid Andriyani; Buhari, Nurliah; Larasati, Chandrika Eka; Siagian, Raja Aditya Sahala; Putra, Brilliant Rudzaky Ridwan
Jurnal Pepadu Vol 5 No 4 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i4.5443

Abstract

Mangroves play a crucial role in maintaining environmental balance, including wave attenuation, preventing erosion, providing habitat for various species, and storing carbon to mitigate climate change. However, mangrove ecosystems are currently facing serious degradation threats due to human activities and climate change, necessitating protective measures, rehabilitation, and active community participation to ensure their preservation. This community service initiative aims to conserve mangrove ecosystems through nursery activities (nursery) and mangrove planting (out-planting) in potential areas not yet populated by mangroves in Siung Village, Sekotong, West Lombok. The nursery activities include techniques for collecting seedlings from the wild, selecting and sorting healthy seedlings, placing them in planting media, and caring for the seedlings. Meanwhile, the out-planting activities involve planting the seedlings in the wild and monitoring the planted mangroves to ensure their survival. Over approximately two months, this project has produced 3,200 mangrove seedlings of Rhizophora mucronata, Rhizophora apiculata, Rhizophora stylosa, and Ceriops tagal species, with a survival rate of 87.5%. As for the out-planting activities, 2,700 mangrove seedlings have been successfully planted in areas near the nursery site. Challenges encountered during seedling collection and care include tidal fluctuations, the presence of pests and predators. In the out-planting activities, ongoing monitoring and maintenance are required to maintain a high survival rate for the seedlings planted in the wild.
Pola Pertumbuhan Karang Genus Acropora Hasil Transplantasi Pada Media Blok Mars dan Meja di Perairan Pantai Pandanan Lombok Utara Fitriani, Rahmah; Rosyada, Vivian; Adiba, Nur; Ardiansyah, Yanuar; Jefri, Edwin; Lestariningsih, wiwid Andriyani; Himawan, Mahardika Rizqi
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 3 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i3.749

Abstract

Pantai Pandanan yang terletak di Desa Malaka kecamatan Pemenang merupakan salah satu destinasi wisata pantai yang terletak di Lombok Utara. Pantai Pandanan memililiki ekosistem terumbu karang yang mendukung keanekaragaman hayati lokal dan merupakan bagian penting dari ekosistem laut setempat. Penelitian ini bertujuan untuk membandingkan pertumbuhan karang Acropora yang ditransplantasi menggunakan dua jenis media, yaitu blokmars dan meja, di perairan Pantai Pandanan, Lombok Utara. Penelitian dilakukan selama empat bulan, dari Mei hingga Agustus 2024, dengan pengamatan pertumbuhan panjang karang setiap bulan. Hasil penelitian menunjukkan bahwa karang yang ditransplantasi pada media blokmars mengalami pertumbuhan yang lebih signifikan dibandingkan dengan media meja. Rata-rata pertumbuhan karang pada media blokmars meningkat lebih cepat pada awal periode transplantasi, sedangkan pada media meja pertumbuhannya lebih lambat. Media blokmars terbukti lebih stabil dan efektif dalam mendukung pertumbuhan karang, karena memiliki struktur yang memfasilitasi perlengketan dan penyediaan nutrisi yang optimal. Berdasarkan hasil ini, media blokmars direkomendasikan sebagai pilihan yang lebih baik untuk kegiatan rehabilitasi terumbu karang
BIODIVERSITAS MAKROALGA DI KAWASAN KONSERVASI GILI MATRA Rahmi, Disa Aulia; Jefri, Edwin; Buhari, Nurliah; Hotmariyah, Hotmariyah
Jurnal Perikanan Unram Vol 15 No 1 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i1.923

Abstract

Macroalgae are a group of lower marine plants commonly referred to as thalloid plants. The diversity of macroalgae in tropical regions, particularly in eastern Indonesia, is very high due to the area being part of the Wallacea region. This study aims to determine the level of diversity and distribution of macroalgae in these waters. The method used is the line transect method, with data analysis including ecological indices and distribution patterns. The results show that the diversity index ranges from 2.45 to 2.80, which falls into the medium category. The evenness index ranges from 0.80 to 0.81, classified as high, while the dominance index ranges from 0.09 to 0.11, which is considered low. The distribution pattern of macroalgae at stations 1, 2, and 3 ranges from 1.37 to 1.49, indicating a clustered distribution pattern. This suggests that the environmental conditions in the waters of Gili Air are stable and conducive to the growth of macroalgae, with no species dominating the ecosystem.
PENGELOLAAN SAMPAH PLASTIK MENJADI EKOBRIK UNTUK MENEKAN LAJU PENCEMARAN SAMPAH MIKROPLASTIK YANG MENGANCAM KELANGSUNGAN HIDUP BIOTA PERAIRAN TELUK BUMBANG, KABUPATEN LOMBOK TENGAH Rahman, Ibadur; Larasati, Chandrika Eka; Waspodo, Saptono; Gigentika, Soraya; Jefri, Edwin
Jurnal Pengabdian Perikanan Indonesia Vol 1 No 1 (2021): Jurnal Pengabdian Perikanan Indonesia
Publisher : Program Studi Budidaya Perairan Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppi.v1i1.82

Abstract

Sampah plastik merupakan permasalahan serius karena sifatnya yang sangat sulit terurai secara alami. Bentuk derifat dari sampah plastik yaitu sampah mikroplastik yang berukuran ≤ 5 mm. Berbagai penelitian menunjukkan terdapat sejumlah konsentrasi plastik dalam tubuh organisme perairan, seperti: plankton, kekerangan, krustasea, dan ikan. Kandungan plastik pada hewan tersebut dapat dipindahkan ke hewan pemangsanya termasuk manusia dalam rantai makanan. Konsentrasi plastik pada tubuh manusia dapat memicu pertumbuhan sel kanker yang mengancam kesehatan dan kelangsungan hidup manusia. Masyarakat Teluk Bumbang sejatinya telah mengetahui dampak negatif sampah plastik yang dibuang ke laut, namun dalam prakteknya masih banyak dijumpai karena hal tersebut sudah menjadi kebiasaan yang membudaya. Pengabdian kepada masyarakat ini berupaya menambah kesadaran masyarakat mengenai ancaman sampah mikroplastik terhadap lingkungan dan biota perairan, serta mengenai solusi pengelolaan sampah plastik. Kegiatan pengabdian kepada masyarakat ini menggunakan beberapa pendekatan, yaitu: (1) survei tentang pemahaman dan perilaku masyarakat terhadap sampah plastik; (2) penyuluhan mengenai ancaman sampah plastik; (3) pelatihan pembuatan ekobrik untuk mengurangi laju produksi sampah plastik. Kegiatan pengabdian kepada masyarakat ini dihadiri kelompok nelayan Teluk Bumbang dan Kelompok Sadar Wisata (Pokdarwis) Desa Mertak, Kecamatan Pujut, Kabupaten Lombok Tengah. Hasil survei menunjukkan bahwa sebagaian besar masyarakat masih membuang sampah di sembarang tempat sedangkan yang lainnya membuang sampah ke TPS (Tempat Pembuangan Sementara). Setelah mendapatkan penyuluhan mengenai ancaman sampah plastik, masyarakat menunjukkan komitmennya untuk berhenti membuang sampah sembarangan dan berkomiten dalam upaya mengelola sampah plastik menjadi produk yang bernilai ekonomis, misalnya ekobrik
Molecular Identification of Fire Worms in Indonesian Intertidal Waters: The First COI Gene-Based DNA Barcode of Eurythoe complanata Rosyada, Vivian; Buhari, Nurliah; Jefri, Edwin
Jurnal Kelautan Tropis Vol 28, No 2 (2025): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v28i2.26551

Abstract

Polychaetes, including fireworms, play crucial ecological roles such as nutrient recycling and forming a vital part of the marine food web. However, their accurate identification is challenging due to morphological complexity and the presence of cryptic species. DNA barcoding, particularly targeting the cytochrome oxidase subunit I (COI) gene, has emerged as a powerful tool for species delineation due to its high accuracy and reproducibility. This study aims to molecularly identify fireworm specimens collected from Indonesian intertidal zones using COI gene barcoding. Fireworm samples were collected from Lombok waters, followed by DNA extraction, PCR amplification, electrophoresis, and DNA sequencing. The DNA data were analyzed using MEGA-X software to compare the sequences with those in the database and identify the species. A phylogenetic tree was constructed to illustrate the relationships between the analyzed species. The results show that the fireworm sample from Lombok is classified as Eurythoe complanata, a member of the Amphinomidae family. COI genetic analysis revealed a 658 bp DNA fragment with 77.19% similarity to the same species from India. The phylogenetic tree indicated a close relationship with the Indian species, supported by a bootstrap value of 85. Genetic distances ranged from 0.02 to 0.48, and the dominance of A+T nucleotides suggests the presence of genetic variation.
Phytoplankton Diversity and The Potential of Harmful Algal Blooms (HABs) in Utan Waters Sumbawa Supriatna, Nunung; Buhari, Nurliah; Jefri, Edwin
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8781

Abstract

Phytoplankton serve as primary producers and bioindicators in aquatic ecosystems. Elevated nutrient concentrations can trigger excessive phytoplankton proliferation, resulting in Harmful Algal Blooms (HABs) that adversely affect aquatic organisms. This study evaluated phytoplankton diversity and the potential for HAB formation in Utan Waters, Sumbawa. Water samples were collected from three purposively selected stations and analyzed in the laboratory to identify phytoplankton genera and calculate ecological indices, including diversity, evenness, dominance, and abundance. Concurrent in situ measurements of temperature, salinity, and current velocity were conducted. A total of twelve genera across four classes were identified, with Oscillatoria (Cyanophyceae) exhibiting the highest abundance. The diversity index ranged from moderate values (H’ = 1.29–1.64), evenness varied from low to moderate (E = 0.54–0.71), and dominance was high (D = 1.93–2.00). Potentially harmful genera detected included Oscillatoria, Ceratium, Chaetoceros, Coscinodiscus, and Rhizosolenia; however, their abundances remained below established HAB thresholds, indicating no current bloom events. The presence of these genera suggests that environmental conditions may support HAB development in the future. Therefore, regular monitoring and nutrient analyses (nitrate, phosphate, chlorophyll-a) are recommended for early detection and sustainable ecosystem management.
Cover, Susunan Redaksi, Daftar Isi Jefri, Edwin
Jurnal Ilmu Kelautan Lesser Sunda Vol. 3 No. 2 (2023): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

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Abstract

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Cover, Susunan Redaksi, Daftar Isi Jefri, Edwin
Jurnal Ilmu Kelautan Lesser Sunda Vol. 4 No. 1 (2024): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

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Abstract

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Antioxidant and Anti-inflammatory Potential of Sargassum sp Extract in Lotion Preparations Safitri, Dwi; Yuliani, Dina; Aldi, M Fardinal; Julfika, Titi; Larasati, Chandrika Eka; Rahman, Ibadur; Jefri, Edwin
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
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.v24i2.6660

Abstract

Sargassum sp. is a type of brown algae found in Indonesian marine waters with great potential in the food and pharmaceutical industries. There is antioxidant and anti-inflammatory potential in Sargassum sp. extract so that it makes this type utilised as a lotion preparation. It is necessary to know the potential of Sargassum sp. extract in making lotions. This research uses extraction method to produce Sargassum sp. extract with organic solvent extraction technique, namely alcohol. In addition, the emulsion method was used in the manufacture of lotion preparations. Furthermore, secondary metabolites and anti-inflammatory (irritation) tests were conducted. In addition, the lotion preparation can be evaluated by conducting organoleptic, pH, and homogeneity tests.  The results showed that the Sargassum sp. extract contained significant antioxidant compounds, as indicated by a decrease in DPPH absorbance. Sargassum extract contains alkaloid, flavonoid, saponin, and tannin. In addition, lotion preparations containing Sargassum sp. extract also showed a significant decrease in pro-inflammatory cytokine expression in skin cells exposed to UVB radiation. In addition, the irritation test showed negative results with a safety level without causing irritation to the skin. These findings indicate the potential of Sargassum sp. extract in producing lotion preparations with antioxidant and anti-inflammatory effects that can contribute to skin protection from oxidative damage and inflammation.
Co-Authors Adiba, Nur Aktia, M. Gilang Al-Aqsha, Lalu Mohammad Riri Rivari Aldi, M Fardinal Ardiansyah, Yanuar Ashari, Rowi Asmileen, Suci Dwi Ayu Adhita Damayanti Baiq Hilda Astriana, Baiq Hilda Chandrika Eka Larasati, Chandrika Eka Destikawati, Destikawati Devi, Lokita Dwi Safitri, Dwi Fadillah, Fitri Fitriani, Rahmah Gigentika, Soraya Himawan, Mahardika Rizki Hotmariyah, Hotmariyah Ibadur Rahman Inayah Yasir Julfika, Titi lestariningsih, Wiwid Lestariningsih, Wiwid Andriyani Lestrariningsih, Wiwid Andriyani Mahardika Rizqi Himawan Martanina, Martanina Muhammad Sumsanto Murdin, Lalu Ferdi Alfarisi Nurliah Buhari, Nurliah nurliah, nurliah Paryono Putra, Brilliant Rudzaky Ridwan Putra, Nyoman Widi Artha Rahman, Ibadur Rahmi, Disa Aulia Rhojim Wahyudi Rosyada, Vivian Sadikin Amir Sakina, Sholihati Lathifa Saptono Waspodo Siagian, Raja Aditya Sahala Siahaya, Patrick Alexander Sitti Hilyana Sultansyah, Muhammad Supriatna, Nunung Syafiuddin Syafiuddin Ta'yuni, Qur'a Utami, Widia Tri Yuliani, Dina Z, Muhammad Fayyadh A.