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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis BULETIN OSEANOGRAFI MARINA Journal of Marine Research Jurnal Sains dan Teknologi Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Journal of Applied Geospatial Information JFMR (Journal of Fisheries and Marine Research) Jurnal Biologi Tropis Dinamika Maritim Kumawula: Jurnal Pengabdian Kepada Masyarakat Jurnal Abdi Insani Jurnal Inovasi Pendidikan dan Sains COJ (Coastal and Ocean Journal) Jurnal Pengabdian Pada Masyarakat Journal of Fisheries & Marine Jurnal Perikanan
Paputungan, Mohammad Sumiran
Program Studi Ilmu Kelautan, Fakultas Perikanan Dan Ilmu Kelautan, Universitas Mulawarman
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Journal : Journal of Marine Research

 1 
Estimasi Konsentrasi dan Stok Karbon Organik pada Sedimen Lamun di Desa Selangan, Kalimantan Timur Andi Fitri Sakmiana; Mohammad Sumiran Paputungan; Widya Kusumaningrum; Susi Rahmawati
Journal of Marine Research Vol 12, No 3 (2023): 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.v12i3.38011

Abstract

Informasi mengenai stok karbon di sedimen ekosistem lamun di Indonesia masih sedikit, khususnya di Kalimantan Timur. Penelitian ini bertujuan untuk mengestimasi stok karbon organik pada sedimen lamun yang berada di perairan sekitar Desa Selangan, pesisir Bontang. Pengambilan sampel sedimen dilakukan pada bulan September 2021, dengan menggunakan pipa PVC yang berdiameter 7 cm dengan panjang 130 cm. Pengambilan sampel sedimen berjumlah 3 core dimulai dari titik lamun yang berdekatan dengan ekosistem mangrove ke arah laut dengan jarak 50 m antar stasiun. Konsentrasi karbon organik sedimen diukur menggunakan metode loss on ignition (LOI) yang dilakukan di Laboratorium Botani Pusat Riset Oseanografi BRIN. Hasil penelitian menunjukkan konsentrasi karbon organik pada lokasi penelitian berkisar 1,70-4,90% dengan nilai rata-rata sebesar 2,72 ±0,20 %. Estimasi stok karbon sedimen lamun yang terdapat di perairan sekitar Desa Selangan adalah 210,94 Mg C/ha. Tidak terdapat perbedaan signifikan pada konsentrasi dan stok karbon organik antar lapisan sedimen. Namun, kedua nilai tersebut cenderung rendah pada lokasi lamun yang berada jauh dari ekosistem mangrove. The available information on sediment organic carbon stock data of the seagrass ecosystem in Indonesia is limited, especially in East Kalimantan. This study aimed to estimate the concentration and stock of organic carbon in seagrass sediment in Selangan, a coastal area of Bontang. Field activities to collect sediment samples were done in September 2021 by using 7-diameter PVC tube core with 130 cm length. Three sediment cores were collected from seagrass adjacent to mangrove ecosystem with 50 m interval between the cores toward the sea. Organic carbon concentration in sediment measured by using loss on ignition method that was performed in Botanical Laboratory of Research Center for Oceanography BRIN. The results showed that the concentration of organic carbon at the study sites ranged from 1.70-4.90% with average at 2.72 ±0.20%. Organic carbon stocks in seagrass sediments in Selangan were estimated at 210.94 Mg C/ha. Both sediment organic carbon concentration and storage values were no significant difference through the layer of sediments. However, both values tend to low in seagrass sediment which were far from mangrove ecosystem.
Struktur Komunitas Makrozoobentos di Pantai Tanah Merah, Perairan IKN Baru, Kalimantan Timur Suryana, Irma; Ritonga, Irwan Ramadhan; Paputungan, Mohammad Sumiran; Agathajani, Brigitha Anjeli; Elisar, Elisar
Journal of Marine Research Vol 13, No 3 (2024): 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.v13i3.41556

Abstract

Makrozoobentos mampu hidup di sedimen lumpur, pasir, batu, kerikil maupun sampah organik di perairan laut, sungai, kolam ataupun danau. Ia merupakan organisme yang berperan dalam rantai makanan sebagai konsumen primer dan konsumen sekunder serta membantu terdistribusinya nutrien dan mineral di substrat perairan. Penelitian pendahuluan ini diharapkan dapat memberikan gambaran tentang struktur komunitas Makrozooobentos di pantai Tanah Merah Samboja, serta melihat jenis substrat sedimen dan kandungan nutriennya. Peletakkan kuadran plot berukuran 2 x 0,25 m2 pada luasan 2400 m2 yang terbagi menjadi 6 titik pengamatan pada zona subtidal memperoleh 182 individu Makrozooobentos yang teridentifikasi sebagai 19 spesies kelas Gastropoda, 15 spesies Bivalvia dan 1 spesies dari kelas Scapopoda. Kelimpahan total dikonfirmasi sebesar 228 ind/m2 dimana pola sebaran kelimpahan per titik linear dengan kandungan Nitrat, Ortofosfat, total Fosfat dan Karbon organik dalam sedimen. Indeks keanekaragaman, keseragaman dan dominansi secara berurutan terukur 3,085 (tinggi), 0,854 (tinggi) dan 0,064 (tidak ada jenis yang mendominasi). Adapun persentase fraksi pasir dalam kisaran 90-97% sebagai kategori tipe substrat.   Macrozoobenthos lives on mud, sand, stone, gravel or organic waste in the ocean floor, river, pond or lake. It is an active organism in the food chain as a decomposer and contributes to spreading some nutrients and minerals on the sediment substrate. This first record research had been to describe the structure community of Macrozoobenthos at Tanah Merah’s beach in Samboja district, also analyzed the type of substrate and the composition of the nutrient. The laying plot in size 2 x 0,25 m2 on the area of 2400 m2, which divided into six substations was, found 182 individuals of Macrozoobenthos, which is confirmed as 19 species of Gastropods, 15 species of Bivalva and 1 species of Scaphopoda. The total abundance was 227,5 ind/m2, whereas each substation's distribution pattern had linearity with nitrate, orthophosphate, total phosphate, and C-organic contents in the sediment. The diversity, uniformity, and dominance index sequentially confirmed 3,085 (high), 0,854 (high), and 0,064 (low). Then, it was confirmed sand fraction in range 90-97% for the type of substrate.
Co-Authors AA Sudharmawan, AA Aditya Irawan Adnan Adnan Adnan Adnan Agathajani, Brigitha Anjeli Ahmad Ahmad Ahmad Ahmad Ahmad Ahmad Ahmad Nabillah Ramadhan Alan Frendy Koropitan Ali Arman Lubis Alimuddin, Alimuddin Ambomasse, Yusril M. An Nisa Octavia Andi Fitri Sakmiana Andi Fitri Sakmiana Andini, Ardita Dwisepti Anindia Resty Syafira Anugrah Aditya Budiarsa, Anugrah Arwadi, Mohammad Tri Arwadi, Tri Ashar, Andini Aulia Ayuk Azwar Pramucti Brigitha Anjely Agatha Jani Bulan, Dewi Embong Chella Nur Kumala Dayang Nathasya Aurelia Putri Awari Dewi Embong Bulan Dewi Embong Bulan Dharmawan, I Wayan Eka Elisar, Elisar Ence Alya Vira Azizah Eryati, Ristiana Ferdy Gustian Firman , Firman Firman Firman Hamdhani, Hamdhani I Wayan Nurjaya Irma Suryana Irma Suryana Irma Suryana Irwan Ramadhan Ritonga Iwan - Suyatna Iwan Suyatna Iwan Suyatna Jani, Brigitha Anjely Agatha Jemi Irlanda Haikal Kolibongso, Duaitd Kusumaningrum, Widya Loto, Naomi Mario Putra Suhana Mufidah, Fitriatul Muhammad Trial Fiar Erawan Naufal Athasyah Norma Gupita Novia, Rani Nur Hasanah Nurdiansah, Doni Nurfadilah Nurfadilah Nurfadilah Nurfadilah Nurfadilah Nurfadilah Nurul Tri Oktavia Putra, Andry Purnama Putra, Andry Purnama Ramli Ramli Rani Novia Rani Novia Renyaan , Jeverson Ristiana Eryati Ristiana Eryati Robin Saputra Simanihuruk, Dorsen Hotma Tua Suryana, Irma Susi Rahmawati Susi Rahmawati Suyatna , Iwan Syafira, Anindia Resty Tri Prartono Utama, Ferdy Gustian Utama, Ferdy Gustian Viddo Try Anggoro Widya Kusumaningrum Widya Kusumaningrum Widya Kusumaningrum Zibar, Zan