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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Journal of Marine Research Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Biologi Tropis Jurnal Abdi Insani Jurnal Aplikasi dan Inovasi Iptek (JASINTEK) Jurnal Pengabdian Perikanan Indonesia Jurnal Media Akuakultur Indonesia Indonesian Journal of Oceanography Jurnal Pepadu Jurnal Ilmu Kelautan Lesser Sunda
Rahman, Ibadur
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Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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Journal : Jurnal Sains Teknologi dan Lingkungan (JSTL)

 1 
Spatial Distribution and Utilization of Marine Habitats by Green Turtle (Chelonia mydas) and Hawksbill Turtle (Eretmochelys imbricata) in the Gili Matra Island Marine Protected Area Lestariningsih, Wiwid Andriyani; Himawan, Mahardika Rizqi; Rahman, Ibadur; Araujo, Gonzalo; Adiwijaya, Cakra; Khaldun, Muhammad Hafidz Ibnu; Cahaya, Himaya Kartika; Alam, Dita Hikmatul; Hotmariyah, Hotmariyah
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 2 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i2.869

Abstract

Sea turtles are one of the key biota in coastal and marine ecosystems whose existence is not only ecologically important, but also holds social, cultural, and economic value. Indonesia, as the largest archipelagic country in the world, is home to six of the world’s seven sea turtle species, making it a globally significant habitat for the sea turtle life cycle. The Gili Matra Marine Protected Area, encompassing the three islands of Gili Trawangan, Gili Meno, and Gili Air, is one of the strategic regions with high potential for sea turtle conservation. This study aims to document and analyze the spatial distribution and habitat use of green turtles (Chelonia mydas) and hawksbill turtles (Eretmochelys imbricata) in the Gili Matra Marine Protected Area. Data collection was carried out during the period of September to October 2024, adjusted to weather conditions and water visibility. The method used was the Underwater Turtle Visual Census Methodology. The composition of sea turtle species and habitat characteristics were analyzed using descriptive analysis to summarize the patterns of species presence, habitat types, and environmental conditions observed during the survey. The findings indicate that the area supports both species, with sea turtles observed at various depths (9–16 meters) across multiple dive sites. The predominance of female individuals and the variation in species presence across sites suggest species specific habitat preferences and potential influences of environmental conditions. Both sea turtle was mostly observed in locations associated with coral reef structures.
Keanekaragaman dan Kelimpahan Bintang Laut Di Daerah Pesisir Dusun Pandanan, Kecamatan Sekotong Barat, Kabupaten Lombok Barat Nursakinah, Nursakinah; Rahman, Ibadur; Buhari, Nurliah
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 2 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i2.622

Abstract

Sea stars have morphological characteristics that are radially symmetrical, have 5 (five) or more arms, do not have a skeleton and move freely using tube legs. Sea stars not only function as litter cleaners in the waters, but are also utilized as food processing and handicraft materials. The study aimed to determine the diversity and abundance of sea star species in the coastal area of Pandanan Hamlet, West Sekotong, West Lombok Regency. This study used the belt transect method. All starfish found in the transect recorded the type, number, and habitat characteristics. The results found 6 species of starfish from 4 families namely Echinasteridae, Archasteridae, Ophidiasteridae, and Oreasteridae. The six species are Henricia sp., Archaster typicus, Linckia laevigata, Culcita sp., and Pentaceraster sp. The diversity index (H') has a value of 0.3 - 1.7, the uniformity index (E) is 0.5 - 0.9, and the dominance index (C) ranges from 0.2 - 0.8. The highest abundance in the species Linckia laevigata with a value of 571 ind/ha (station 1) and 333 ind/ha (station 1), while the lowest abundance in the species Pentaceraster sp. 33 ind/ha. All starfish were found to be associated with seagrass plants except Pentaceraster sp.
Komposisi Jenis dan Tutupan Lamun di Perairan Dusun Pandanan, Sekotong, Lombok Barat Rahfika, Rahfika; Rahman, Ibadur; Paryono, Paryono
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 2 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i2.624

Abstract

Seagrasses can live on muddy, sandy and broken coral or rock substrates. Seagrass ecosystems are often found in areas with thick sandy mud substrates. Seagrass beds are one of the aquatic ecosystems that have high water productivity, and have a vital role for the associated biota that live around them, both as a feeding ground, nursery ground, and spawning ground. The purpose of this study was to see the species composition and cover of seagrass species in the waters of Pandanan Hamlet, Sekotong, West Lombok. Seagrass data collection was carried out at low tide, using the line transect method by making the observation path into three replicates with a length of 100 m each, a distance of 50 m each transect. The 50 cm quadrat frame is placed on the right side of the transect with a distance of 10 m between one quadrant and the other so that the total quadrant on each transect is 11 quadrants. The results showed that the composition of seagrass species found in the waters of Pandanan Hamlet, Sekotong, West Lombok as many as 7 (seven) seagrass species, namely: S. isoetifolium, C. rotundata, E. acoroides, T. hemprichii, H. ovalis, H. uninervis and H. pinifolia with Seagrass Cover in the Waters of Pandanan Hamlet Sekotong, Lombok is included in the category of moderate and rare with the percentage of seagrass species S. isoetifolium (2.78%-9.36%), C. rotundata (1.39%-6.91%), E. acoroides (7.03%-14.75%), Thalassia hemprichii (2.31%-9.66%), H. ovalis (2.5%-0.98%), H. uninervis (0.038%) and H. pinifolia (4.64%). The index of importance at the 2 stations had different values. The type of E. acoroides has the highest INP value at both stations, with values of 61.54% and 62.06% respectively. Ecological Index in the Waters of Pandanan Hamlet, Sekotong, West Lombok includes: Seagrass Diversity Index with the value obtained (1.43 and 1.65). Diversity Index with values (0.8 and 0.92) and Dominance Index with values (0.26 and 0.22).
Co-Authors Abd Saddam Mujib Adiwijaya, Cakra Alam, Dita Hikmatul Aldi, M Fardinal Aprilya, Nabilah Araujo, Gonzalo Arisqia, Neny Ashari, Rowi Asiah-Z.A., Siti Atmaja, Putu Satya Pratama Ayu Adhita Damayanti Baiq Hilda Astriana, Baiq Hilda Cahaya, Himaya Kartika Chandrika Eka Larasati, Chandrika Eka Dewi Putri Lestari, Dewi Putri Dwi Safitri, Dwi Fariq Azhar Fitriani, Syawalina Gigentika, Soraya Harman, Carlen Aufa Haykal, Muhammad Hernawati Hernawati Hilyana, Siti Himawan, Cahya Himawan, Mahardika Rizki Hotmariyah, Hotmariyah Jamal Basmal, Jamal Jefri, Edwin Julfika, Titi Khaldun, Muhammad Hafidz Ibnu Kholilah, Nenik lestariningsih, Wiwid Lestariningsih, Wiwid A. Lestariningsih, Wiwid Andriyani Lumbessy, Salnida Yuniarti Mahardika Rizqi Himawan Martanina, Martanina Marwan, Muh. Maylanda, Donna Ayu Muhammad Junaidi Muhammad Sumsanto Murdin, Lalu Ferdi Alfarisi Murtiyoso, Mahbub Nanda Diniarti Nasution, Ali Napiah Nunik Cokrowati Nurliah Buhari, Nurliah nurliah, nurliah Nursakinah, Nursakinah Paryono Puna, Salvina H. Puna, Salvina Herawaty Rahfika Rahfika, Rahfika Ramadhan, Moch Fitrah Rhojim Wahyudi Rusmin Nuryadin Sadikin Amir Sahrani, Putri Sakina, Sholihati Lathifa Santika, Lora Saptono Waspodo Setyowati, Dewi Nur'aeni Setyowati, Dewi Nur’aeni Siskawati Sitti Hilyana Supiandi, Muhammad SUWARTI Syawal, Abdul Syafiq tias, sherina aulia ningtias Tirayya, Nadia Hulwa Wahida, Nurul Safira WIBISONO, RENDY VIDYA Yasir Yuliani, Dina ZA, Siti Asiah