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All Journal BULETIN OSEANOGRAFI MARINA Journal of Tropical Marine Science Coastal and Marine Journal
Muftiadi, M. Rizza
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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Abundance Of Coral Reef Fishes In The Waters Of Gelasa Island, Central Bangka District Ferizal, Jemi; Muftiadi, M. Rizza; Pamungkas, Aditya; Hidayat, Syahrin Imron; Maulana, Ervan; Hidayatullah, Muhammad Fajar; FERIZAL1, JEMI
Journal of Tropical Marine Science Vol 8 No 2 (2025): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v18i2.6946

Abstract

Gelasa Island has a coral reef ecosystem as a habitat for biota including coral reef fish, turtles, and others. The coral reef has been damaged due to anthropogenic activities. The purpose of the study was to determine the percentage of coral reef cover and the abundance of coral reef fish. The study was conducted in March 2024 in the waters of Gelasa Island. The method used was UPT (Underwater Photo Transect) for coral reefs and UVC (Underwater Visual Census) for coral reef fish, and the PAST 4.03 application to determine the diversity, uniformity, and dominance index. The results of the study showed that the percentage of coral reef cover in the waters of Gelasa Island was in the good category with an average of 52.42%. The abundance of coral reef fish was 49,114 ind/ha in the very rare category. The highest abundance of coral reef fish species was Neopomacentrus anabatoides, Pomacentrus alexanderae, and Caesio cunning. Based on the category, major fish have the highest abundance. The diversity value is in the moderate category, the uniformity value indicates an unstable community, and the dominance value is in the low category.
The Changes in The Area and Condition of Seague on Lepar Island, South Bangka using Sentinel 2A Image Angelia, Fera; Supratman, Okto; Muftiadi, M. Rizza; Adi, Wahyu
Coastal and Marine Journal Vol. 2 No. 2 (2024)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v2i2.20

Abstract

Seagrass is a higher-level plant that has symbiosis, vessels and reproduces generatively and lives submerged in water. Seagrass has many functions in waters, namely as a breeding ground, primary producer, water stabilizer, and as a sediment trap. The large number of mining activities in the Bangka Belitung Islands Province, especially in South Bangka district, can cause sediment to enter the seagrass ecosystem which will indirectly damage the seagrass ecosystem. Not only mining, many other human activities around the seagrass ecosystem also pose a threat to this ecosystem, such as ship propellers, reclamation activities and dock construction. The method used to determine station points ispurposive sampling, to assess the condition of seagrass using the quadratic transect method at 3 stations, namely Penutuk, Tanjung Sangkar and Tanjung Labu. The research results of the seagrass area on Lepar Island in 2020 was 1437.53 Ha, in 2021 it was 1428.14 Ha, in 2022 it was 1339.54, and in 2023 it was 1258.22. The changes in seagrass area that occurred were a reduction in area of 9.39 Ha from 2020-2021, in 2021-2022 it decreased by 88.6, in 2022-2023 it decreased by 81.22 Ha and the total change in seagrass area from 2020-2023 was reduced by 179.31 Ha. The condition of seagrass cover on Lepar Island is categorized as poor with a percentage of station 1 (Penutuk) 22.042%, station 2 (Tanjung Sangkar) 14.071%, and Station 3 (Tanjung Labu) 0.0868%.
Kondisi dan Status Kesehatan Ekosistem Padang Lamun di Pulau Bangka Bagian Selatan, Kepulauan Bangka Belitung Supratman, Okto; Adi, Wahyu; Muftiadi, M. Rizza; Henri, Henri; Pamungkas, Aditya
Buletin Oseanografi Marina Vol 13, No 1 (2024): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v13i1.56615

Abstract

Ekosistem lamun di Bangka Selatan terjadinya gangguan dan ancaman dari beberapa aktivitas antropogenik. Akan tetapi data tentang kondisi dan kesehatan padang lamun sangat terbatas. Tujuan penelitian adalah menganalisis kekayaan jenis, persentase tutupan dan kesehatan ekosistem padang lamun. Penelitian dilaksanakan pada bulan Februari 2022 hingga Desember 2022 di Kabupaten Bangka Selatan yang meliputi pesisir Tanjung Kerasak, Pantai Tukak, Pantai Penutuk, Pulau Anak Air dan Pantai Puding. Tahapan penelitian terdiri dari 1) Pengumpulan data lamun, makroalga, dan epifit, 2) Pengukuran parameter lingkungan, 3) Analisis data meliputi analisis kesehatan lamun dengan metode Indeks Kesehatan Ekosistem Lamun (IKEL). Hasil penelitian  terdapat 8 jenis lamun yang ditemukan di lokasi penelitian yaitu Enhalus acoroides, Thalassia hemprichii, Oceana serrulata, Cymodocea rotundata, Halodule uninervis, Halophila minor, Halophila ovalis, dan Halodule pinifolia. Nilai tutupan lamun berkisar antara antara 2,04% hingga 41,93%  dengan rata-rata tutupan lamun yaitu 26,8 % yang dikategorikan miskin. Indek kesehatan ekosistem lamun (IKEL) di Bangka Selatan berkisar antara 0,60 sampai dengan 0,70 atau dikategorikan sedang sampai dengan baik. Kondisi kesehatan ekosistem lamun dikategorikan baik ditemukan di Pentuk (0,70), sedangkan dikategorikan sedang ditemukan di Tanjung Kerasak (0,68), Pantai Tukak (0,62), Pantai Puding (0,60), dan Pulau Anak Air (0,61).   The seagrass ecosystem in South Bangka is experiencing disturbance and threats from several anthropogenic activities. However, data on the condition and health of seagrass beds is very limited. The aim of the research is to analyze species richness, percentage cover and health of the seagrass ecosystem. The research was carried out from February 2022 to December 2022 in South Bangka Regency which includes the coast of Tanjung Kerasak, Tukak Beach, Penutuk Beach, Anak Air Island and Puding Beach. The research stages consisted of 1) collecting data on seagrass, macroalgae and epiphytes, 2) measuring environmental parameters, 3) data analysis including analysis of seagrass health using the Seagrass Ecological Quality Index (SEQI) method. The research results showed that there were 8 spesies of seagrass found at the research location. Spesies founded is Enhalus acoroides, Thalassia hemprichii, Oceana serrulata, Cymodocea rotundata, Halodule uninervis, Halophila minor, Halophila ovalis, and Halodule pinifolia. The seagrass cover value ranges from 2.04% to 41.93% with average seagrass cover is 26.8% which is categorized as poor. The seagrass ecology quality index in South Bangka ranges from 0.60 to 0.70 which categorized  as moderate to good. The health condition of the seagrass ecosystem was assessed as good in Pentuk (0.70), while moderate was found in Tanjung Kerasak (0.68), Tukak Beach (0.62), Puding Beach (0.60), and Anak Air Island (0. .60).
Co-Authors Abdullah, Maizah Mohd Adibrata, Sudirman Adriyansyah, Nico Aldia, Dia Alghamdi, Munirah Aziz Abdulaziz Andi Gustomi Angelia, Fera Arizona, M. Oka Balisco, Rodulf Anthony T. Bywater, Aaron Citra Ayu, Citra Evitulistiono, Rizki Ferizal, Jemi FERIZAL1, JEMI Hafizah, Adisti Henri Henri, Henri Hidayat, Syahrin Imron Hidayatullah, Muhammad Fajar Kurniawan Lonameta, Lonameta Maulana, Eka Maulana, Ervan Meta, lona Muhammad Firmansyah, Muhammad Okto Supratman Pamungkas, Aditya Perangin-angin, Robet Saputri, Nova Wahyu Adi Wahyu Adi Yilmaz, Muhammed Furkan