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All Journal Jurnal Penelitian Perikanan Indonesia Nekton Coastal and Marine Journal
Komarullah, Umam
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Social Sciences

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STRUKTUR KOMUNITAS IKAN KARANG PADA TERUMBU BUATAN DI KAWASAN PERTAMBANGAN LAUT, BANGKA BELITUNG Adibrata, Sudirman; Perangin-angin, Robet; Dedi, Dedi; Komarullah, Umam; Akbar, Arham Hafidh; Utomo, Dela; Wibawa, Yuzan Fudhaili Tri
Jurnal Penelitian Perikanan Indonesia Vol 30, No 2 (2024): (Juni) 2024
Publisher : Politeknik Kelautan dan Perikanan Karawang, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.30.2.2024.%p

Abstract

Tujuan penelitian yaitu untuk mengetahui kelimpahan, keanekaragaman, keseragaman, dan dominansi ikan karang di terumbu buatan di perairan Penyusuk. Upaya rehabilitasi terumbu karang dengan menggunakan metode terumbu buatan dilakukan oleh PT. Artha Cipta Langgeng. Desain terumbu buatan berbentuk kubus berongga dengan luas bagian dasar 6,25 m2 yang diharapkan dapat menjadi habitat baru bagi organisme laut. Pengamatan ikan karang dilakukan dengan menggunakan metode stationary visual sensus. Hasil menunjukan bahwa ikan karang di lokasi terumbu buatan ditemukan sebanyak 23 spesies dari 10 famili. Kelimpahan ikan karang di semua stasiun pengamatan terumbu buatan berkisar 189,92 – 325,28 indivudu.m-2,termasuk kategori Sangat Melimpah. Indeks keanekaragaman jenis ikan berkisar 1,09 - 1,65, termasuk kategori Sedang yang berarti bahwa penyebaran setiap spesies ikan karang stabil dalam komunitas dan berada dalam kondisi normal. Nilai indeks keseragaman berkisar 0,47 - 0,67, termasuk dalam kategori Sedang (5 stasiun) hingga Tinggi (1 stasiun). Kondisi spesies ditemukan merata pada setiap stasiun karena tidak adanya spesies yang lebih dominan. Nilai indeks dominansi berkisar 0,29 - 0,43, termasuk kategori Rendah (1 stasiun) dan Sedang (5 stasiun). Tiga famili yang paling dominan yaitu famili Lutjaniade, Apogonidae, Leiognathanidae. Terumbu buatan di perairan Penyusuk didominasi oleh kelompok ikan target.The aim was to determine the abundance, diversity, uniformity, and dominance of reef fish in artificial reefs in Penyusuk waters. Coral reef rehabilitation efforts using the artificial reef method were carried out by PT. Artha Cipta Langgeng. The artificial reef design is in the form of a hollow cube with a volume of 6.25 m3 which is expected to become a new habitat for marine organisms. Reef fish observations were carried out using the stationary visual census method. The results showed that there were 23 species of reef fish in the artificial reef site from 10 families. The abundance of reef fish at all artificial reef observation stations ranged from 189.92 – 325.28 individual/m3, including the Very Abundant category. The condition of this fish abundance is strongly influenced by food factors, orientation towards the new environment, and finding a safe place to take shelter. The fish species diversity index ranged from 1.09 to 1.65, including the Moderate category, which means that the distribution of each reef fish species is stable in the community and is in normal conditions. The environmental pressure on the fish community is not too heavy and the environmental carrying capacity for the fish community is quite good. The uniformity index values range from 0.47 to 0.67, belonging to the Moderate (5 stations) to High (1 station) categories. The condition of the species was found evenly at each station because there were no more dominant species. Dominance index values range from 0.29 to 0.43, including the Low category (1 station) and Medium (5 stations). The three most dominant families are the Lutjaniade, Apogonidae, and Leiognathanidae families. The artificial reefs in the Susuk waters are dominated by target fish groups.
Unlocking Mangrove Potential: Sustainable Crab Fisheries in Selindung Sub-watershed, Bangka Island – Indonesia Adibrata, Sudirman; Wahidin, La Ode; Franto, Franto; Komarullah, Umam; Perangin-angin, Robet; Simanjuntak, Hengki; Aisyah, Liastiana
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.v2i2.36

Abstract

The identification of mangroves thriving around river estuaries is essential for managing natural resource potential in the Selindung Sub-Watershed. This study evaluates the mangrove resource potential and the livelihoods of crab trap fishermen in the Selindung Sub-Watershed, part of the Baturusa Watershed. Conducted from June to November 2024 in Pagarawan Village, Merawang District, Bangka Regency, this research employed a mixed-method approach, integrating qualitative and quantitative analyses, to identify mangrove species and assess the mangrove crab (Scylla spp.) fishery. The results revealed significant natural resource potential in the Selindung Sub-Watershed, encompassing 349 hectares of mangrove forests with dense canopy cover (≥80%), classified as high-quality habitat. Ten mangrove species were identified, including dominant taxa such as Bruguiera gymnorrhiza, Rhizophora mucronata, and Sonneratia alba. The mangrove crab fishery represents a vital livelihood for local fishermen, who supply their catch to Fish Farming Groups (Pokdakan) for fattening purposes. The sustainability of this fishery is closely tied to the health of the mangrove ecosystem. To ensure the long-term preservation of mangroves and their associated resources, sustainable management policies are required, supported by adequate budget allocation, law enforcement, capacity building, equitable supply chain advocacy, stakeholder engagement, and community education. These measures are critical for fostering ecosystem resilience while supporting the socio-economic well-being of local communities.
Reef fish community structure in the waters of small islands Central Bangka Regency Adibrata, Sudirman; Adi, Wahyu; Angelia, Fera; Komarullah, Umam; Dedi, Dedi; Akbar, Arham Hafidh; Maulana, Eka; Sapriyadi, Sapriyadi; Sofyan, Sofyan; Aldia, Dia; Animah, Animah; Ayu, Citra; Gunawan, Robi; Mahatir, Muhammad; Sandri, Sandri; Evitulistiono, Rizki; Febrianto, Febrianto; Efendi, Muhammad Ichsan; Susanto, Agung; Alqodri, Muhammad Faris; Adriyansyah, Nico; Hafizah, Adisti; Ferizal, Jemi
Nekton Vol 4 No 1 (2024): March
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v4i1.724

Abstract

This study aimed to analyze the community structure of reef fish in the small island waters of Central Bangka. The research was conducted in March 2022 in the waters of Bebuar Island, Ketugar Island, Ketawai Island, and Gusung Asam Central Bangka Regency, Bangka Belitung Islands Province. The coral reef survey method uses purposive sampling and the coral reef fish visual census with data analysis of abundance, diversity index, uniformity, and dominance. In-site water quality measurements included six parameters: temperature, salinity, current, brightness, depth, and pH. The results showed that coral reef cover from 44.60 - 87.00% with the medium to very good category. The abundance of reef fish from 1 to 3 individuals/m2 was dominated by 18 species of the Pomacentridae family. The reef fish diversity index ranged from 2.47 to 2.90, including the medium category. The uniformity index value ranged from 0.79 - 0.94, including the high category, indicating that the species found were evenly distributed across all stations. The dominance index value ranges from 0.07 to 0.15, including low, where no species dominates significantly and the fish are evenly distributed. Temperature, brightness, pH, and salinity are factors that support the growth of coral and reef fish. A water current speed of 0.05 – 0.20 m/s is quite helpful in cleaning coral reefs from mud and can supply oxygen. Water conditions were categorized as good and fulfilled the seawater quality standards.
Co-Authors Adibrata, Sudirman Adriyansyah, Nico Aisyah, Liastiana Akbar, Arham Hafidh Aldia, Dia Alqodri, Muhammad Faris Angelia, Fera Animah Animah Citra Ayu, Citra Dedi Dedi Efendi, Muhammad Ichsan Evitulistiono, Rizki Febrianto Febrianto, Febrianto Ferizal, Jemi Franto, Franto Gunawan, Robi Hafizah, Adisti La Ode Wahidin Maulana, Eka MUHAMMAD MAHATIR Perangin-angin, Robet Rachmana, Tyo Sandri, Sandri Sapriyadi, Wandi Simanjuntak, Hengki Sofyan Sofyan Susanto, Agung Utomo, Dela Wahyu Adi Wahyu Adi Wibawa, Yuzan Fudhaili Tri Zulfakar, Zulfakar