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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Perikanan dan Kelautan Jurnal Pengolahan Hasil Perikanan Indonesia Panrita Abdi - Jurnal Pengabdian pada Masyarakat Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Endang Sunarwati Srimariana
Department Of Marine Science And Technology, Faculty Of Fisheries And Marine Sciences, IPB University, Jl. Agatis, IPB Dramaga Campus, Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Library & Information Science Other

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CORAL REEF HEALTH ASSESSMENT ON THE EAST COAST OF KEI BESAR ISLAND, SOUTHEAST MALUKU: PENILAIAN KESEHATAN TERUMBU KARANG DI PESISIR TIMUR PULAU KEI BESAR, MALUKU TENGGARA Dea Fauzia Lestari; Astri Ayuningtias; Endang Sunarwati Srimariana
Jurnal Teknologi Perikanan dan Kelautan Vol. 16 No. 3 (2025): AUGUST 2025
Publisher : Fakultas Perikanan dan Ilmu Kelautan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.16.302-312

Abstract

Pulau Kei Besar di Maluku Tenggara memiliki potensi terumbu karang yang signifikan, menjadikannya daerah yang penting secara ekologis dan memiliki peluang pengembangan yang besar. Seperti terumbu karang pesisir lainnya, terumbu karang di sekitar Pulau Kei Besar sangat rentan terhadap bahaya signifikan yang ditimbulkan oleh aktivitas manusia dan tekanan lingkungan. Salah satu langkah awal yang perlu dilakukan adalah dengan mengetahui kondisi ekosistem dengan melakukan analisis kesehatan terumbu karang. Tujuan penelitian ini adalah untuk menganalisis indeks kesehatan terumbu di perairan pesisir timur Pulau Kei Besar. Penelitian lapang dilaksanakan pada 3-18 November 2018 di enam lokasi di wilayah pesisir timur Pulau Kei Besar. Lokasi-lokasi ini dipilih karena merupakan area padat penduduk di pesisir timur. Hasilnya menunjukkan bahwa ekosistem terumbu karang di pesisir timur Kei Besar tergolong pada kategori sedang hingga tinggi. Tutupan karang keras (hard coral) berkisar antara 27% (terendah di Hollat) hingga 78.67% (tertinggi di Fako). Biomassa ikan target bervariasi dari 32.92 kg/ha (terendah di Kilwait) hingga 311.41 kg/ha (tertinggi di Weduar). Indeks kesehatan terumbu karang di pantai timur Pulau Kei Besar secara umum memiliki skor 6 dari total 10 dan hanya Hollat yang memiliki skor 5.
Biodegradation activities of microplastic polymers by Agelas conifera sponge-symbiotic bacteria Meutia Samira Ismet; Endang Sunarwati Srimariana; Nur Alam Dwi Cahyati; Nurlita Putri Anggraini; Lenni Mariana Simbolon; Nadya Cakasana; Mohamad Rafi
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research on microplastic (MP) accumulation in marine organisms' tissue have been widely conducted, as well as research on microplastic biodegradation by microbial organisms from the environment.Agelas coniferasponge is proven to accumulate MP in its tissue as well as having bacteria as symbiotic organism. This research aims to screen and study biodegradation activities ofA. coniferasymbiotic bacteria on MP polymers, alsoto identify the species of those bacteria isolates. Bacterial Isolation ofA. coniferasponge tissue was using Zobell 2216E agar media. Screening and biodegradation assay of the bacteria isolates was conducted on Marine Salt Media agar that was added with 0,5 g of MP polymers, using Kroc-Boral method. Diameter of clear (bacterial growth) zone surrounding Kroc-Boral indicated the biodegradation activity of the bacterial isolates. Statistical analysis on the activity was using Two Way ANOVA. Results showed that there were 9 bacterial isolates of 53 that could degrade several MP polymers, with different activities (ANOVA, p value 0.05). High and low-density polymers (Linear- Low Density PolyEthylene/ LLDPE, Polyethylene/PE, and Polyvinyl Chloride/ PVC) were found to be degraded by all 9 isolates. Meanwhile, Polyethylen Taraphtalene (PET) and Polystyrene (PS) only degraded by 8 and 3 isolates, respectively. There are only 5 isolates that have high biodegradation index (1.5) on different polymers, which mostly on PET polymer. Isolate Ac8MP found to be the most bacteria that have degradation index on all polymers more than 1.This research proves that symbiotic bacteria could have a biodegradation mechanism on MP polymers that accumulates by sponge-host. However, further study needs to be done to understand the mechanisms and effectiveness of sponge-bacterial biodegradation activity.
Co-Authors Aditya Hikmat Nugraha Adriani Sunuddin Alnodio Lotaldy Anggraini, Nurlita Putri Astri Ayuningtias Azizah Lutfia Ningtyas Azizah Lutfia Ningtyas Beginer Subhan Bernita br Silaban Dea Fauzia Lestari, Dea Fauzia Desi Nurulita Kusumastuti Erwin Maulana Fanasya Kautsaharani Imanditya, Muhammad Fachriza Indra Jaya Lenni Mariana Simbolon Lilyana Az Zahra Meutia Samira Ismet Mochamad Tri Hartanto Mohamad Rafi MUJIZAT KAWAROE Mujizat Kawaroe Nadya Cakasana NEVIATY PUTRI ZAMANI Niken Oktaviandini Yonatika Nur Alam Dwi Cahyati Nur Alam Dwi Cahyati Nurlita Putri Anggraini Nyoman M N Natih Qudsi Athiyyah Kamini Rastina Rastina RITA ANDINI Riza Aitiando Pasaribu Sri Pujiyati Steven Solikin Tumpak Sidabutar Wahyu Adi Setyaningsih Zahra Wajdini Amigunani