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La Ode Alirman Afu, La Ode Alirman
Universitas Halu Oleo
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Ecological Index and Distribution of Sponges (Porifera) in the Waters of Labuan Beropa Village, South Konawe Sipayung, Putri Pebrina; Afu, La Ode Alirman; Rahmadani, Rahmadani
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9950

Abstract

Tropical coastal ecosystems possess high biodiversity and play a vital role in maintaining ecological functions, supported in part by the presence of sponges (Porifera) as filter feeders. This study aimed to identify species diversity, calculate ecological indices, and analyze the distribution patterns of sponges in the coastal waters of Labuan Beropa, South Konawe. Field surveys were conducted through sponge sampling at several observation sites, followed by taxonomic identification, calculation of Shannon-Wiener diversity index (H’), evenness (E), dominance (C), and distribution pattern analysis using the Morisita index. Seven benthic sponge species were recorded: Aaptos pernucleata, Aaptos suberitoides, Clathria (thalysias), Haliclona cymaeformis, Hyrtios erectus, Mycale sp., and Xestospongia muta. The highest density occurred in areas with stable rocky substrates, calm currents, and low anthropogenic disturbance, while the lowest density was observed in areas with intense human activities. H’ values were low (0.632–0.735), E values were high (0.748–0.869), and C values were low (<0.3). Distribution patterns were predominantly clumped, with some species exhibiting uniform or random patterns. These findings indicate that habitat physical quality and the degree of anthropogenic pressure are key determinants of sponge community structure. The baseline data generated can be used to support sustainable management and conservation of tropical coastal ecosystems.
Abundance and Distribution of Microplastics in the Waters of Koroe Onowa Village, Wakatobi Regency Basriah, Basriah; Afu, La Ode Alirman; Emiyarti, Emiyarti
Jurnal Biologi Tropis Vol. 24 No. 2b (2024): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2b.8320

Abstract

The waters of Koroe Onowa Village, Wakatobi Regency, are at risk of plastic waste contamination due to human activities on land that are carried by currents into the waters. Plastic waste is very dangerous for the health of the aquatic environment, especially marine biota, because the accumulation of microplastics over a long period of time can interfere with the respiratory and digestive tracts of marine biota, and has the potential to harm human health. For this reason, research on microplastics in these waters is needed. This study aims to analyze the abundance and distribution of microplastics in the waters of Koroe Onowa Village. Microplastic sampling was carried out using a modified plankton net method, which was then identified based on the type of microplastic. The results of the study showed that there were four main types of microplastics identified, namely fragments, films, fibers, and pellets, with an abundance ranging from 3.2 to 8.86 particles per liter. Station III, which is a coastal tourism area with dense human activity, showed the highest abundance value, namely 8.86 particles/liter. The results of this study provide an initial overview of the threat of microplastic pollution in the waters of Koroe Onowa and form the basis for better monitoring and waste management efforts in the area, as well as the need for mitigation measures to protect marine ecosystems and ensure the sustainability of coastal resources.
Spatial–Vertical Distribution of Microplastics Abundance and Characteristics in the Coastal Waters of Raha City, Muna Regency Rahman, Annisa Syaesar; Afu, La Ode Alirman; Emiyarti, Emiyarti; Warsidah, Warsidah
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11347

Abstract

Microplastics are emerging pollutants increasingly detected in coastal waters and may disrupt marine ecosystem functioning as well as pose potential risks to human health. This study aimed to analyze the spatial–vertical distribution of microplastic abundance and characteristics in the coastal waters of Raha City. Sampling was conducted at three stations representing an anthropogenic activity gradient: the harbor/fish landing port (Station I), the tourism–residential area (Station II), and the river mouth (Station III). At each station, samples were collected at three depths (surface, mid-water, and near-bottom) using a plankton net, then filtered and microscopically identified based on microplastic type and color. The results showed a consistent spatial gradient, with the highest mean abundance at Station I (5.58 particles/m³), followed by Station III (4.45 particles/m³), and the lowest at Station II (1.87 particles/m³). Vertically, microplastic abundance tended to be higher in the surface and mid-water layers than near the bottom, indicating the dominance of low-density particles remaining suspended in the water column. Microplastic characteristics were dominated by fibers across all stations, while black-colored particles were most frequently observed, accounting for >30% at each station. These findings confirm the strong contribution of fisheries–harbor activities and land-based waste inputs (particularly via the river mouth) as the main sources of microplastics in the study area. This study provides important baseline data on the three-dimensional distribution of microplastics in the coastal waters of Raha City and underscores the need to strengthen land-based waste management and regulate marine-related activities in the area.
Penanaman Mangrove di Desa Sawapudo, Soropia, Kab. Konawe, Sulawesi Tenggara, sebagai Implementasi SDG’s 4, 8, dan 14 Baru Sadarun; La Ode Alirman Afu; Fatmawati; Chairun Annisa Aryanti
Jurnal Pengabdian Magister Pendidikan IPA Vol 9 No 2 (2026): April-Juni 2026
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v9i2.15380

Abstract

Coastal areas have diverse functions for environmental balance through the presence of mangrove forests. Mangroves play a crucial role in maintaining coastal stability. This activity aims to be the starting point of a larger movement in environmental conservation, in line with the implementation of SDG, 4 (Quality Education), 8 (Decent Work and Economic Growth), and 14 (Life Below Water), as well as serving as a platform for education, strengthening economic, and raising awareness about protecting the marine environment. Community involvement in mangrove planting activities is carried out through a participatory approach, where students and local residents are not merely objects but active subjects in every stage of the activity. The mangrove planting method consists of preparation, determining planting distance, and group division. A total of 100 Rhizophora mucronata seedlings were prepared for this community service activity. The team of lecturers, coastal community, and students carried out the planting, as part of a community service program in the Marine Education Park Bintang Samudra, Konawe Regency, Southeast Sulawesi. The mangrove planting activity demonstrated a high level of participation from both the community and students. The entire series of activities represents efforts to support the Sustainable Development Goals (SDGs), focusing on SDG 4 (quality education), SDG 8 (decent work and economic growth), and SDG 14 (Life Below Water) which includes the protection of coastal ecosystems.
Pengolahan Limbah Pesisir Menjadi Produk Kreatif dan Bernilai Ekonomi Berkelanjutan di Desa Sambuli Latifa Fekri; La Ode Alirman Afu; Abdullah; Abdul Muis Balubi; Fatmawati; Asriyana; La sara; Hasan Eldin Adimu; Wa Ode Intiyani Mangurana
Jurnal Pengabdian Magister Pendidikan IPA Vol 9 No 2 (2026): April-Juni 2026
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v9i2.15529

Abstract

: The coastal area of Sambuli Village has considerable potential in terms of marine resources and tourism development. However, coastal waste pollution remains a persistent issue that degrades environmental quality, diminishes natural aesthetics, and reduces tourist appeal. Therefore, a training program focused on processing coastal waste into creative products can serve as an integrated solution by improving environmental cleanliness while simultaneously generating new sources of income for local communities. This community service activity aims to provide education on the importance of environmental conservation through the reduction of plastic waste, as well as to equip the community with new skills in transforming waste materials into innovative and creative handicraft products. The partners involved in this program include the Sambuli Village government and the local community of Sambuli Village, Nambo District. The methods applied in this community service program consist of community education on coastal waste management and hands-on training in recycling waste into usable products. The results indicate an increase in community awareness regarding the importance of environmental protection through waste reduction, an improvement in community skills in converting waste into creative products with economic value, and support for both the village government and the community in preserving the coastal environment while encouraging the creative use of recycled materials in Sambuli Village.
Co-Authors A. Ginong Pratikino Abdul Gani Abdul Muis Balubi Abdul Rajab Nadia, La Ode Abdullah Abdullah Abdullah Abdullah Abdullah Absalom Luturmas Admaja, Alfi Kusuma Afizha, Ainun Amadhan Takwir Andeleu, Meambo Trikun Ardani, . Arfianty, Nur Rahmy Ariani, . Asnani Asnani Asriyana, . Balubi, Abdul Muis Baru Sadarun Baru Sadarun Basriah, Basriah Bolqiah, Sofri Cahyono, Harry Chairun Annisa Aryanti Darmisa, . Emil, Wildan Emiyarti Emiyarti, Emiyarti Emiyarti, . Ermayanti Ishak, Ermayanti Esna Nirwana, Esna Fatmawati Fatmawati Fitriansyah, Idul Gunawan Giu, La Ode Muh. Halili Halili Halim Halim, Halim Hasan Eldin Adimu Hidayat, La Ode Alfitrah Iha, Lisa Ihsas, Mijwadul Ira Ira, Ira Ira, . Irpan, Muhammad Jawadin, . Jawahir, La Ode Ahmad Kaenda, Herman Kasim, Ma'ruf Kulmawapa, Rizki Arpakul Kurnianto, Harry Eko La Ode Baytul Abidin La Ode M. Yasir Haya, La Ode M. La Sara Lestari, Firda Mangurana, Wa Ode Intiyani Mudin, Pupun Amalia Muhaimin Hamzah Muhammad Fajar Purnama Muhammad Fajar Purnama Muhammad Idris Muhammad Ramli Muhammad Trial Fiar Erawan Nirwamati, Nirwamati Nugroho, Oktsyavitto Adithya Nurfatimah, Faya Masria Nurgaya, Wa Nurgayah, Wa Pangerang, Utama K Pattinasarany, Maureen M Permana, Nur Posad, Juston Pratama, Aan Pratikino, A. Ginong Rahmadani Rahmadani Rahman, Annisa Syaesar Rakhmat Hidayat, Rakhmat Rosvita Sari, Indira Sabilu, Kadir Salwiyah S, Salwiyah Sarita, Abdul Haris Sipayung, Putri Pebrina subhan . Subhan Subhan Subhan Subhan Syam, Sahril Syawal, Andi Muhammad Umbay, Virgo Lelono Virginia, Chrisma Wali, Ado Wali, Windarsin Warsidah, Warsidah Winnarsih Winnarsih, Winnarsih Zubaydah, Wa Ode Sitti