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Coral Reef Status after the 2018 Sunda Strait Tsunami Using the CPCe Program: A Case Study of Tanjung Lesung Banten Anzani, Luthfi; Minsaris, La Ode Alam; Wilujeung, Alya Dina; Rahardjo, Cakra; Hasidu, La Ode Fajar; Nugroho, Fajar
Jurnal Perikanan dan Kelautan Vol. 28 No. 1 (2023): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Tsunami that swept the Tanjung Lesung coast in 2018 caused Anak Krakatau to collapse in Sunda Strait which hit the coastal areas of Banten and Lampung. Tanjung Lesung is one of the worst areas affected. Tsunami in Tanjung Lesung has taken lives, damaged infrastructure, and caused terrible natural damage. One of the damages affecting residents' lives in the Tanjung Lesung coastal community is exposure to the marine ecosystem. The main ecosystem that has the highest productivity level is the coral reef. Coral biota is the main benthic biota of reefs that are directly affected by earthquakes and tsunamis. However, until now there has been no data on the status of coral reefs after the 2018 Sunda Strait tsunami. Therefore, researchers feel the urgency of this research is high enough to determine the condition of coral reefs after the Sunda Strait tsunami in Tanjung Lesung. There are 3 research stations for data collection before the tsunami, and we conduct research in those 3 stations again after the tsunami. Then we added 3 research stations again, so there are 6 research stations. Observation of coral reefs uses the Line Intercept Transect (LIT) method. The line transect is made by stretching a roll meter with a scale parallel to the coastline along 25 meters with three replications with an interval of about 0-5 meters between replications so the total observed transect was 75 meters. The deterioration of coral reef conditions at three research stations (1-3) proved that the tsunami waves affected the damage to coral reefs. This has an impact on the diversity of coral reef species inhabitants that have decreased. Disturbance form coral-damaged structure and composition changes of the base substrate as habitat can have an impact on reef fish and coral reef inhabitants. So that this research is expected to be a reference for policymakers in determining rehabilitation steps for areas affected by the 2018 Sunda Strait tsunami.
Coral Reef Status after the 2018 Sunda Strait Tsunami Using the CPCe Program: A Case Study of Tanjung Lesung Banten Anzani, Luthfi; Minsaris, La Ode Alam; Wilujeung, Alya Dina; Rahardjo, Cakra; Hasidu, La Ode Fajar; Nugroho, Fajar
Jurnal Perikanan dan Kelautan Vol. 28 No. 1 (2023): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Tsunami that swept the Tanjung Lesung coast in 2018 caused Anak Krakatau to collapse in Sunda Strait which hit the coastal areas of Banten and Lampung. Tanjung Lesung is one of the worst areas affected. Tsunami in Tanjung Lesung has taken lives, damaged infrastructure, and caused terrible natural damage. One of the damages affecting residents' lives in the Tanjung Lesung coastal community is exposure to the marine ecosystem. The main ecosystem that has the highest productivity level is the coral reef. Coral biota is the main benthic biota of reefs that are directly affected by earthquakes and tsunamis. However, until now there has been no data on the status of coral reefs after the 2018 Sunda Strait tsunami. Therefore, researchers feel the urgency of this research is high enough to determine the condition of coral reefs after the Sunda Strait tsunami in Tanjung Lesung. There are 3 research stations for data collection before the tsunami, and we conduct research in those 3 stations again after the tsunami. Then we added 3 research stations again, so there are 6 research stations. Observation of coral reefs uses the Line Intercept Transect (LIT) method. The line transect is made by stretching a roll meter with a scale parallel to the coastline along 25 meters with three replications with an interval of about 0-5 meters between replications so the total observed transect was 75 meters. The deterioration of coral reef conditions at three research stations (1-3) proved that the tsunami waves affected the damage to coral reefs. This has an impact on the diversity of coral reef species inhabitants that have decreased. Disturbance form coral-damaged structure and composition changes of the base substrate as habitat can have an impact on reef fish and coral reef inhabitants. So that this research is expected to be a reference for policymakers in determining rehabilitation steps for areas affected by the 2018 Sunda Strait tsunami.
Utilization of Drones for Infrastrucure Mapping in Kamisi Village, Kodeoha District, North Kolaka Regency Prasetya, Arif; Hasidu, La Ode Abdul Fajar; Fitra, Ramad Arya
Majalah Pengabdian Indonesia Vol. 2 No. 1 (2025): April 2025
Publisher : Teras Kampus as a member of PT Palem Edukasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/maindo.v2i1.255

Abstract

This community service activity aims to map the infrastructure and boundaries of Kamisi Village, Kodeoha District, North Kolaka Regency used drone. Mapping is carried out as an effort to support the implementation of planned and sustainable village development. This activity was carried out for two months (February-April) in 2023. The implementation method consists of 5 stages: 1) location survey, 2) taking coordinate points using GPS, 3) taking aerial photos using the DJI Mavic2 Pro Drone which supports mapping activities, 4) data processing with Arc.GIS software, and 5) submission of maps to the village government. The results obtained are detailed maps of infrastructure (village gates, village offices, roads and bridges), hamlet boundaries, residential areas, plantation/agricultural areas, and village public facilities (sports fields, places of worship/mosques, health facilities such as integrated health posts and health centers, and TPU). This map is expected to be a reference for village development and minimize the potential for conflict between villages and hamlets regarding territorial boundaries. Active participation of the community and village government shows high support for synergy between universities and villages in regional development.
Mangrove Nursery Training fo Marine and Fisheries Student Group in Buton Tengah Regency Adi Parman Rudia, La Ode; Izal; Muhamad Azwar Syah; Phradiansyah; La Ode Abdul Fajar Hasidu
Majalah Pengabdian Indonesia Vol. 1 No. 1 (2024): April 2024
Publisher : Teras Kampus as a member of PT Palem Edukasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/m.v1i1.6

Abstract

Mangrove degradation that occurs in various regions of Southeast Sulawesi, especially in Mawasangka sub-district, Central Buton Regency, is caused by several factors, one of which is the conversion of mangroves into ponds. Real action is needed in mangrove rehabilitation efforts. Some concrete actions in mangrove rehabilitation efforts include species recognition activities as well as mangrove nurseries, which can later be used as a source of seeds for mangrove planting activities. This activity aims to provide understanding to students of the Marine Science and Fisheries Science Study Program regarding the types of mangroves, seed selection, and how to seed mangroves. The methods used in carrying out this activity were a survey of mangrove locations, introduction of mangrove species, selection of seeds, nurseries, and evaluation of activities. A mangrove location survey was carried out to inspect mangrove areas that were open due to conversion into ponds. Species introduction is carried out directly in the mangrove area around the pond. Seed selection is carried out on mangrove propagules that meet the requirements as a seed source. Mangrove seeding is carried out on previously selected mangrove species. Meanwhile, evaluations are carried out 30 days after planting, to see the level of success of mangrove seedlings in growing. The results obtained were that there were 16 types of mangroves, with 4 types of mangroves used as seed sources, namely R. apiculata, R. mucronata, C. tagal, and B. gymnorrhiza. There are a total of 1200 mangrove seedlings that have successfully grown, with a growth success rate of 100%. Apart from that, the participants' capacity in the aspect of introducing types of mangroves, how to seed several types of mangroves, and how to select good seeds has increased. Meanwhile, the participants had a very good understanding of the function and role of mangroves for the environment and society.
PELATIHAN DAN PENDAMPINGAN PENULISAN KARYA ILMIAH PADA MAHASISWA TINGKAT AKHIR KAMPUS B UNIVERSITAS SEMBILANBELAS NOVEMBER KOLAKA Fekri, Latifa; Adimu, Hasan Eldin; Hasidu, La Ode Abdul Fajar; Saleh, Ramlah; Tasabaramo, Ilham Antariksa
Jurnal Abdi Insani Vol 11 No 2 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i2.1629

Abstract

The aim of holding this training activity is to train prospective graduates and prepare final year students in writing scientific papers according to writing rules. Training activities and assistance in writing scientific papers were carried out at campus B, Sembilanbelas November Kolaka University, involving final year students of the Marine Science and Fisheries Science Study program, Faculty of Agriculture, Fisheries and Animal Husbandry. Before and after implementation, students are given a questionnaire sheet as an activity evaluation sheet. During implementation, students were able to participate very enthusiastically in all stages of the training, starting from explanations and discussions regarding scientific writing theory to the practice of writing scientific papers (in the form of scientific papers). Training activities and written assistance improve students' knowledge and skills in writing scientific papers.
Raising Awareness of Protected Marine Biota among Fishermen Groups in Lanto Village, Central Buton Regency Rahmat Karim, S.Si., M.Si; Hasidu, La Ode Abdul Fajar; Prasetya, Arif
Majalah Pengabdian Indonesia Vol. 2 No. 2 (2025): August 2025
Publisher : Teras Kampus as a member of PT Palem Edukasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/maindo.v2i2.568

Abstract

Limited awareness among fishermen regarding protected marine species remains a major challenge in marine conservation efforts in coastal areas. Lanto Village, Central Mawasangka District, Central Buton Regency, is a coastal community where most residents depend on fishing activities, resulting in frequent interactions with protected marine species. This community service activity aimed to enhance fishermen’s knowledge and awareness of protected marine species, including their identification, legal protection status, and ecological importance, through socialization and educational activities. The methods applied included a pre-test, oral presentations supported by visual media, interactive discussions, and a post-test to assess changes in participants’ understanding. The results indicated that prior to the activity, fishermen’s knowledge of protected marine species was generally low, particularly regarding legal regulations, protection status, and ecological reasons for conservation. Following the socialization process, a significant improvement was observed in fishermen’s ability to identify protected marine species and their awareness of the importance of marine ecosystem conservation. This activity demonstrates that participatory and context-based educational approaches are effective in increasing knowledge and fostering conservation awareness among coastal communities.
Skrining Senyawa Metabolit Sekunder Ekstrak Daun dan Kulit Batang Bruguiera gymnorrhiza dari Laguna Anano Te’i, Buton Tengah Maharani Maharani; La Ode Abdul Fajar Hasidu; Raodatul Jannah; Melati Octapian Simanjuntak; Kasnia Kaatu; Indra Ardiansyah; Sri Aprilianti Idris; Agung Wibawa Mahatva Yodha
Journal of Marine Research Vol 14, No 4 (2025): 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.v14i4.53760

Abstract

Ekosistem mangrove kaya akan senyawa metabolit sekunder yang memiliki nilai ekologis dan farmakologis. Bruguiera gymnorrhiza merupakan salah satu spesies mangrove dominan yang telah lama dimanfaatkan dalam pengobatan tradisional, namun profil bioaktifnya pada habitat unik masih jarang dikaji. Penelitian ini bertujuan mengetahui komposisi kualitatif dan kuantitatif bioaktif pada daun dan batang B. gymnorrhiza dari Laguna Anano Te’i, Buton Tengah. Sampel diekstraksi dengan metode maserasi menggunakan etanol, kemudian dilakukan skrining fitokimia dan kuantifikasi spektrofotometri. Analisis kualitatif menunjukkan keberadaan alkaloid, flavonoid, steroid, dan fenolik pada kedua bagian tanaman. Secara kuantitatif, daun mengandung fenolik sebesar 465,596 mg GAE/g ekstrak, steroid 275,794 mg CE/g, alkaloid 83,944 mg CE/g, dan flavonoid 6,501 mg QE/g. Kulit batang didominasi oleh steroid sebesar 362,745 mg CE/g, diikuti fenolik 149,807 mg GAE/g, alkaloid 25,889 mg CE/g, dan flavonoid 6,419 mg QE/g. Variasi ini menunjukkan adanya pengaruh lingkungan laguna terhadap biosintesis senyawa metabolit sekunder, dengan daun memiliki potensi lebih besar sebagai antioksidan dan antimikroba. 
Estimasi Biomassa dan Karbon Tegakan Rhizophora apiculata Hasil Aforestasi di Kecamatan Mawasangka La Ode Abdul Fajar Hasidu; Maharani Maharani; Indra Ardiansyah; Syahrul Muhammad; Salsa Mariska
Journal of Marine Research Vol 15, No 2 (2026): 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.v15i2.54239

Abstract

Rhizophora apiculata is a mangrove species commonly used in revegetation programs because its propagules are easy to obtain, and its growth is relatively easy to control. R. apiculata also has great potential in storing carbon, so it is important to know its contribution to carbon stocks in coastal areas. This study aims to determine the density, estimate biomass, and carbon stocks of R. apiculata from community revegetation on the coast of Mawasangka District, Central Buton Regency. The study was conducted in October-November 2025. Vegetation data collection used a 50-meter quadratic transect method perpendicular to the coastline, with two transect lines and six plots 100 m². The percentage of canopy cover was measured using the Hemispherical Photography method. Biomass and carbon stock estimation used the Google Earth Engine approach and direct measurements using the Allometric model. The results showed that the percentage of canopy cover of R. apiculata was 74.10 ± 14.53%, which is included in the good/dense category. Based on the dbh size, the highest density was in the 4–6.99 cm and 7–9.99 cm size classes with values of 2616.66 ind/ha2 and 1666.66 ind/ha2, respectively. The total biomass was 115.97 tons/ha2, consisting of AGB 111.81 tons/ha2 and BGB 4.15 tons/ha2. This value is directly proportional to the total carbon stock of 54.50 tons C/ha2 (AGC: 52.55 tons C/ha2; BGBC: 1.95 tons C/ha2). In general, the biomass and carbon stock values in the upper part of the stand were higher than those in the lower part. R. apiculata resulting from revegetation is still in the early stages of growth with a relatively small dbh size. Nevertheless, its potential as a carbon store is quite good. Efforts to preserve and expand the revegetation area need to be continued to increase the potential for carbon absorption in coastal areas.
Diversity of mollusks (bivalves and gastropods) in degraded mangrove ecosystems of Kolaka District, Southeast Sulawesi, Indonesia Fajar Hasidu; Jamili Jamili; Gaby Nanda Kharisma; Arif Prasetya; Maharani Maharani; Riska Riska; La Ode Adi Parman Rudia; Akhmad Fadli Ibrahim; Azhar Aras Mubarak; La Ode Muhsafaat; Luthfi Anzani
Biodiversitas Journal of Biological Diversity Vol. 21 No. 12 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211253

Abstract

Abstract. Hasidu LOAF, Jamili, Kharisma GN, Prasetya A, Maharani, Riska, Rudia LOAP, Ibrahim AF, Mubarak AA, Muhasafaat LO, Anzani L. 2020. Diversity of mollusks (bivalves and gastropods) in degraded mangrove ecosystems of Kolaka District, Southeast Sulawesi, Indonesia. Biodiversitas 21: 5884-5892. Mollusks are one of the mangrove organisms whose classes are bivalves and gastropods. It plays an important role in mangrove and marine ecosystems as filter feeders, predators, and herbivores. This study aims to knows the diversity and abundance of mollusks (bivalves and gastropods) in several mangrove ecosystems in the Kolaka coastline as well as the similarity of these locations. This study was conducted in mangrove ecosystems of Induha Village, Mangolo Village, Tahoa Village, and Towua Village of Kolaka District, Southeast Sulawesi, Indonesia, from July to August 2019. This is a transect method stretched along a 100 m line perpendicularly from the seaward. The size of the mollusks subplot was 1 m2 and placed along the line transect. Each line transect comprises 10 subplots. To analyze the diversity index, evenness index, and its abundance, Kaleida Graph 4.0 version was used. This research indicates that the mollusks consist of 4 families of bivalves with 6 species and 10 families of gastropods with 182 species. It also found out 23 species of mollusks scattered to each location. The molluscan species which spread in all four mangrove ecosystems were Terebralia sulcata, Nerita planospira, and Batillaria multiformis. In Induha, the mollusks species were Anadara notabilis and Drupella margariticola. Meanwhile, Saccostrea cucullata, Pirenella incisa, Clithon oualaniensis, and Clithon pulchellum were only found in Towua. The diversity index of bivalves in each location was categorized as low diversity index category, as well as gastropods were categorized as medium diversity index. The highest diversity index of gastropods was in Induha (H' = 1.96). It was supported by the good mangrove ecosystem for mollusks' habitat. The lowest diversity index of gastropods was in Towua (1.41). This research depicts that three kinds of species with high abundance rate whose rates were >1 ind/m2are located in two different locations namely; P. incisa (3.9 ind/m2) and S. cucullata (3.2 ind/m2) in Towua and followed by B. multiformis (2 ind/m2) and Isognomon ephippium (1.2 ind/m2) in Mangolo.
Suitability of floating net cage system of lobster cultivation site (Panulirus spp.) through Geographic Information System approach in Samaturu Sub-district, Kolaka District, Indonesia SYAHRIR SYAHRIR; ARIF PRASETYA; LA ODE ABDUL FAJAR HASIDU; RAMLAH SALEH; ANDI DYNA RIANA; NUR ASIA UMAR; MUHAMMAD YUSUF
Biodiversitas Journal of Biological Diversity Vol. 25 No. 11 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d251110

Abstract

Abstract. Syahrir, Prasetya A, Hasidu LOAF, Saleh R, Riana AD, Umar NA, Yusuf M. 2024. Suitability of floating net cage system of lobster cultivation site (Panulirus spp.) through Geographic Information System approach in Samaturu Sub-district, Kolaka District, Indonesia. Biodiversitas 25: 4105-4116. The natural habitat of lobsters is in coral reefs of coastal waters from shallow to 100 meters below sea level. In Indonesia, coral reef areas that become the habitat of lobsters are around 67,000 km², including those in the waters of Samaturu Sub-district, Kolaka District, Southeast Sulawesi. The present study uses a floating net cage system to identify and map suitable lobster (Panulirus spp.) cultivation areas. The study was conducted from June to July 2023 in the coastal waters of Samaturu Sub-district, Kolaka District. Data were collected in 14 spots of coastal waters by using various oceanographic parameters (protection, depth, current, brightness, temperature, dissolved oxygen, and salinity). The measurement results of the parameters were analyzed using the spatial analysis method, ArcGIS 10 program. The analysis involved interpolation and spatial classification, which overlaid all oceanographic parameters to obtain the scores through a suitability matrix. Thus, it can show the spatial maps for lobster cultivation areas suitability. The study concluded that the environmental parameter values are: (i) The temperature of the sea surface was 28-30°C; (ii) The salinity level was 31-35 ppt; (iii) The brightness was 5-14 meters; (iv) The dissolved oxygen level was 5-7 mg/L; (v) The current speed was around 0.31-0.41 m/s; (vi) The water depth was 4-26 meters. It means that the measurement results are suitable for lobster cultivation in Samaturu waters; the total area of water suitable for lobster cultivation area with a floating net cage system (KJA) is obtained 6,179 (74.22%), including the highly suitable area is 2,290 ha (27.51%), categorized areas that suitable is 2,363 ha (28.38%), and categorized areas that moderately suitable is 1,526 ha (18.33%). Moreover, there are conditionally suitable areas of 1,648 ha (19.80%) and an unsuitable area of 498 ha (5,98%). Thus, the prospect of developing lobster cultivation in Samaturu waters is potential.
Co-Authors Adi Parman Rudia, La Ode Aditya Hikmat Nugraha Ady Jufri Agung Wibawa Mahatva Yodha Agus Putra AS Agusrinal Agusriyadin, Agusriyadin Akhmad Fadli Ibrahim Al Muzafri Alghi, Anugerah Febryan Alya Dina Wilujeung Andi Besse Patadjai ANDI DYNA RIANA Andi Septiana Ansar, Soehardiman Anti Landu Anwar Anzani, Luthfi Ardiansyah, Indra Ari Anggoro Arianto Arianto ARIF PRASETYA Arif Prasetya Arif Prasetya Arif, Arif Prasetya Arina Ruzanna Asni Asni Asni Asni Awal, Samsi Ayub Sugara Azhar Aras Mubarak Azwar Sidiq Basiruddin, Basiruddin Cakra Rahardjo Chandrika Eka Larasati Dandi Saleky Disnawati Disnawati Disnawati Disnawati, Disnawati Dwi Rosalina Eldin, Hasan Endi Ardianto Fajar Nugroho Faradisa Anindita Fatur Rahman Rustan Firman syah Fitra, Ramad Arya Gaby Nanda Kharisma Gaby Nanda Kharisma Gaby Nanda Kharisma Hamid, Fanul Harsanto Mursyid Hasan Eldin Hasan Eldin Adimu Hasria Hasria, Hasria Hening, Egiyanti Nur Widhia I Gusti Bagus Wiksuana Ibrahim, Akhmad Fadli Idris, Sri Aprilianti Iis Afrianty Ilham Antariksa Tasabaramo Ilham Antariksa Tasabaramo, Ilham Antariksa Indra Ardiansyah Indra Ardiansyah Indra Ardiansyah Iradaf Mandaya Izal jafar, Maharani Jamili Jamili Jepri Agung Priyanto, Jepri Agung Kamaruddin, Anggi Ashari Kamur, Sudarwin Kangkuso Analuddin, Kangkuso Kasnia Kaatu La Aba La Ode Adi Parman Rudia La Ode Huli La Ode Muhamad Hazairin Nadia La Ode Muhsafaat Laode Muhamad Hazairin Nadia Laode Muhamad Hazairin Nadia Laode Muhamad Hazairin Nadia Latifa Fekri Lebrina Ivantry Boikh Luthfi Anzani Maharani Maharani Maharani ' Jafar Maharani Maharani Maharani Maharani Maharani Maharani Maharani Maharani Maharani Maharani, Maharani Masitah Melati Octapian Simanjuntak Minsaris, La Ode Alam Mizwar, Muh. mubarak, azhar aras Muhamad Azwar Syah Muhamad Jalil Baari MUHAMMAD YUSUF Muhammad Hatta Muhammad Syaiful Muis Muis Muis Mujiyanto Mujiyanto Mutmainnah Muchtar Nur Anisa NUR ASIA UMAR Nur Ikhsan Nurhuda Annaastasia Ode Muhammad Sety, La Patadjai, Andi Besse Permatasari, Vera Phradiansyah Prastya, Muhammad Eka Primahana, Gian Putri Cahyani Putri Grace Simamora Rahardjo, Cakra Rahmat Karim Rahmat Karim, S.Si., M.Si Ramad Arya Fitra Ramlah RAMLAH SALEH Ramlah Ramlah Ramlah Saleh Raodatul Jannah Rhesi Kristiana Rika Anggraini Riska Riska Riska Riska Riska Riska Riska Riska Risnita Tri Utami Rizna Triana Dewi Safar, Muhammad Saleh, Ramlah Salsa Mariska Sarimuddin, Sarimuddin Sety, La Ode Muhamad Simbolon, Sumihartati Sri Rezeki Suharsono Bantun Suryanti, Erma Syahrial Syahrial SYAHRIR SYAHRIR Syahrul Muhammad Teddy Triandiza Tezza Fauzan Waode Nilda Arifiana Effendy Wica Elvina Wilujeung, Alya Dina Windi Syahrian Wulandari Wulandari Yulfiperius, Yulfiperius Yulianti, Eva Tri Yunialdi Hapynes Teffu Yuwanda Purnamasari Pasrun Zibar, Zan Zulfathri Randhi