Article Per Year (5 Year)
p-Index From 2021 - 2026
1.704
P-Index
This Author published in this journals
All Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Journal of Innovation and Applied Technology Research Journal of Life Science Journal of Environmental Engineering and Sustainable Technology JFMR (Journal of Fisheries and Marine Research) Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium Water and Marine Pollution Journal: PoluSea Biodiversitas Journal of Biological Diversity
Desy Setyoningrum
Department Of Marine Sciences, Faculty Of Fisheries And Marine Sciences, Universitas Brawijaya. Jl. Veteran 1, Malang 65145, East Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Mechanical Engineering Medicine & Pharmacology Social Sciences Other

Published : 11 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search

 1   2 
Phytochemical Analysis and in vitro Antibacterial Activities of Seagrass Enhalus acoroides against Staphylococcus aureus Desy Setyoningrum; Ade Yamindago; Syarifah Hikmah J. S; Maftuch Maftuch
Research Journal of Life Science Vol 7, No 2 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rjls.2020.007.02.2

Abstract

Several studies of marine bioactive compounds have been carried out using seagrass. Enhalus acoroides is a type of seagrass that has bioactive compounds including alkaloids, flavonoids, tannins, steroids, and saponins that have potential as an antibacteria. The aim of study is to investigate the phytochemical compound contained in the crude extract of Enhalus acoroides and its antibacterial activities of Enhalus acoroides against Staphylococcus aureus. The seagrass was collected, washed, dried, grind and exposed to extraction by vacum rotary evaporator at temperature of 40°C and was analyzed for their phytoconstituents. Further, the crude extract was tested against pathogenic bacterial at different concentrations using disc diffusion method to determine the effect of bioactive compounds in E. acoroides to bacteria. In the present study, qualitative test of phytochemical from ethanol extract of Enhalus acoroides leaves contained phytochemical compound of alkaloids, flavonoids, tannins, steroids and saponins, while the extract of roots contained all of compounds except saponins. Based on research can be concluded, that Enhalus acoroides also has antibacterial activity against Staphylococcus aureus that showed by the presence of inhibition zone. The present finding suggests that the extract of seagrass Enhalus acoroides can be used an antibacterial agent from marine
ANALISIS PERUBAHAN GARIS PANTAI DENGAN METODE DIGITAL SHORELINE ANALYSIS SYSTEM (DSAS) TAHUN 2017-2021 (STUDI KASUS: PANTAI PARANGTRITIS, KABUPATEN BANTUL): ANALYSIS OF SHORELINE CHANGES IN 2017-2021 USING THE DIGITAL SHORELINE ANALYSIS SYSTEM (DSAS) METHOD (CASE STUDY: COAST OF PARANGTRITIS, BANTUL REGENCY) Setyoningrum, Desy; Fahreza Okta Setyawan, S.Kel.,M.T; Anggita Sekar M; Faisal Akmal; M. Falbian Arsetyo N; Imam Akbar Wicaksono
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 2 (2023): JFMR on August
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.02.10

Abstract

Kawasan pesisir Parangtritis adalah salah satu tujuan wisata pantai yang signifikan bagi Daerah Istimewa Yogyakarta (DIY). Aktivitas pariwisata di Parangtritis dapat dibagi menjadi dua bagian, yaito aktifitas wisatawan di wilayah pasang surut (swash zone) dan pembangunan fasilitas pendukung bagi wisatawan di wilayah darat (backshore). Perubahan garis pantai disebabkan oleh faktor-faktor seperti angin, gelombang laut, dan arus laut. Tujuan dari penelitian ini adalah untuk mengetahui perubahan garis pantai yang terjadi di wilayah Pantai Parangtritis serta hubungannya dengan pasang surut dan gelombang laut. Pemantauan perubahan garis pantai dilakukan metode Digital Shoreline Analysis System (DSAS). Metode perhitungan perubahan garis pantai yang digunakan pada DSAS yaitu metode Net Shoreline Movement (NSM), Shoreline Change Envelope (SCE) dan End Point Rate (EPR). Pengamatan perubahan garis pantai mengambil rentang waktu selama 5 tahun menggunakan data tahun 2017, 2018, 2019, 2020, dan 2021. Pada hasil penelitian ditemukan fakta bahwa terjadi abrasi dan akresi pada wilayah Pantai Parangtritis. Abrasi terjadi pada daerah yang terdampak ombak secara tinggi, tanpa adanya pemecah ombak. Akresi terjadi pada wilayah dengan kemiringan landai dengan gelombang lebih lemah. Akresi tertinggi tercatat sebesar 63.31 meter, dan abrasi tertinggi tercatat dengan angka -63,35 meter. Faktor hidrooseanografi seperti gelombang yang datang menuju pantai akan mengikis dan berpengaruh terhadap berubahnya garis pantai dan besarnya angkutan sedimen. Hal tersebut didukung dengan tinggi gelombang pada daerah tersebut adalah 2,5meter dengan rata-rata periode 10,81 detik.   The coastal area of Parangtritis is one of the significant beach tourism destinations in the Special Region of Yogyakarta (DIY). Tourism activities in Parangtritis can be divided into two parts, namely tourist activities in the swash zone and the development of supporting facilities for tourists on the backshore. Changes in the coastline are caused by factors such as wind, sea waves, and ocean currents. The purpose of this research is to understand the changes in the coastline that occur in the Parangtritis Beach area and their relationship with tides and sea waves. Monitoring of coastline changes is conducted using the Digital Shoreline Analysis System (DSAS). The methods used for calculating changes in the coastline in DSAS are Net Shoreline Movement (NSM), Shoreline Change Envelope (SCE), and End Point Rate (EPR). The observation of coastline changes spans a period of 5 years, using data from 2017, 2018, 2019, 2020, and 2021. The research findings show that there were both abrasion and accretion processes in the Parangtritis Beach area. Abrasion occurred in areas heavily impacted by high waves without the presence of wave breakers. Accretion took place in areas with gentle slopes and weaker waves. The highest accretion recorded was approximately 63.31 meters, while the highest erosion reached -63.35 meters. Hydrooceanographic factors, such as waves approaching the coast, erode the shoreline and influence the change in coastline and sediment transport. This is supported by the fact that the wave height in the area is 2.5 meters with an average period of 10.81 seconds.
POLLUTION LEVEL IN RANU KLAKAH, LUMAJANG, EAST JAVA Amrillah, Attabik Mukhammad; Salamah, Lutfi Ni`Matus; Amin, Abd. Aziz; Setyoningrum, Desy
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 01 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.01.8

Abstract

The increase in population, tourist activities and fish farming with floating net cages, whose waste is thrown directly into the Ranu Klakah, lead to pollution. The aim of this study is to determine the level of pollution in the ecosystem of Ranu Klakah Lake. The research method is descriptive. Water samples were collected at 3 stations, between 09.00 and 13.00 WIB. Measured water quality parameters: Temperature, TSS, DO, pH, ammonia, orthophosphate, nitrite, nitrate, BOD, COD. The analysis results were compared with the Water Quality Standard No. II as stipulated in the Regulation of the Government of the Republic of Indonesia No. 82 of 2001, which relates to water quality management and pollution control. Analysis of pollution level using the Storet method. According to the research results, there are two stations that have a moderate level of pollution. The data confirms that the waters of Ranu Klakah are generally moderately polluted. Community activities in fish farming, tourism and waste disposal contribute to the state of water pollution in Ranu Klakah. It is hoped that the results of this study will provide the relevant stakeholders with initial information for structuring the Ranu Klakah area
The Strengthening of BSTC (Bajulmati Sea Turtle Conservation) in Sea Turtle Monitoring Activities in Gajahrejo Village, Malang Regency. Setyoningrum, Desy
Journal of Innovation and Applied Technology Vol 10, No 2 (2024)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiat.2024.10.02.003

Abstract

Sea Turtles are a type of reptile that predominantly inhabit marine environments, and their populations have experienced a significant decline due to various factors such as natural habitat destruction, marine pollution, predation, and commercial hunting. Conservation efforts are crucial to maintaining the sustainability of turtle populations. The Sea Turtle Conservation Area in Malang Regency, known as Bajulmati Sea Turtle Conservation (BSTC) Malang, has committed to caring for adult turtles, hatching eggs, and nurturing turtle hatchlings. However, these conservation activities have not been fully optimized, particularly in monitoring nesting turtles, rescuing eggs, and addressing turtle diseases. This Community Service Initiative aims to provide knowledge and skills to the conservation area managers related to monitoring, rescuing, and treating turtle diseases. The goal is to enhance the number of saved turtle eggs and improve their survival rate. 
Pemetaan Batimetri dan Morfologi Dasar Perairan Sendangbiru, Kabupaten Malang Desy Setyoningrum; Fahreza Okta Setyawan; Riswan Septriayadi Sianturi; Citra Syananta; Siti Al Khumairoh Annadziroh Nurshokh; Decha Satria Ibnu Faqih; Agung Wahyudi Prasetyo; Naufal Fidel Satria Aryasatya
Jurnal Kelautan Vol 18, No 3: Desember (2025)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v18i3.28860

Abstract

ABSTRAKPerairan Sendang Biru, Kabupaten Malang, merupakan salah satu jalur pelayaran tersibuk di pesisir selatan Jawa, terutama saat puncak musim penangkapan ikan pada bulan Agustus hingga Oktober. Aktivitas pelayaran dan perikanan intensif di wilayah ini memerlukan data batimetri yang akurat untuk mendukung keselamatan navigasi dan pengelolaan perairan. Penelitian ini bertujuan untuk memetakan kontur batimetri dan mengidentifikasi morfologi dasar laut di Perairan Sendang Biru menggunakan metode pemeruman dengan Single Beam Echosounder (SBES). Pengambilan data dilakukan pada bulan Oktober 2024 dengan interval jalur pemeruman sejauh 50 meter, menghasilkan data kedalaman yang dikoreksi terhadap pasang surut menggunakan Metode Admiralty. Pengolahan data pasang surut dilakukan berdasarkan konstanta harmonik untuk menentukan nilai elevasi penting, seperti HHWL, MHWL, MSL, MLWL, dan LLWL. Hasil analisis menunjukkan tipe pasang surut di Perairan Sendang Biru adalah tipe campuran dominan ganda dengan bilangan Formzahl sebesar 0,31744. Hasil penelitian menunjukkan bahwa kedalaman perairan berkisar antara 1 meter hingga 36 meter. Morfologi dasar laut didominasi oleh lereng landai dengan beberapa area lereng curam yang tersebar di bagian selatan dan barat daya perairan. Selain itu, terdapat beberapa wilayah yang teridentifikasi sebagai potensi pengendapan sedimen di area dangkal. Berdasarkan hasil penelitian ini, memberikan informasi penting bagi penataan alur pelayaran dan area tambat do Pelabuhan Pondokdadap, terutama karena kontur kedalaman yang bervariasi dan keberadaan zona potensi sedimentasi di area dekat pantaiKata kunci: Pemetaan Batimetri; Perairan Sendangbiru; Single Beam Echosounder (SBES); Survey Hidrografi.ABSTRACTThe waters of Sendang Biru, Malang Regency, are among the busiest shipping routes along the southern coast of Java, especially during the peak fishing season from August to October. The intensive shipping and fishing activities in this area require accurate bathymetric data to support navigation safety and water management. This study aims to map bathymetric contours and identify the seabed morphology in the waters of Sendang Biru using a hydrographic survey method with a Single Beam Echosounder (SBES). Data collection was conducted on October  2024, with survey line intervals of 50 meters, producing depth data corrected for tidal variations using the Admiralty Method.Tidal data processing was carried out based on harmonic constants to determine critical elevation values such as HHWL, MHWL, MSL, MLWL, and LLWL. The analysis results indicate that the tidal type in the waters of Sendangbiru is a mixed predominantly semidiurnal type, with a Formzahl number of 0.31744. The study results show that water depths range from 1 meter to 36 meters. The seabed morphology is dominated by gentle slopes with some steep slope areas scattered in the southern and southwestern parts of the waters. Additionally, several areas were identified as potential sediment deposition zones in shallow areas. This findings provide essential information for planning navigation routes and mooring areas at Pondokdadap Port, particularly considering the variable depth contours and presence of sedimen-accumulation zone near the coastline. Keywords: Bathymetric Mapping; Single Beam Echosounder (SBES); Sendang Biru Waters; Hydrographic Survey
Analisis Akurasi Data Batimetri Single Beam Echosounder System (SBES) dan Satellite Derived Bathymetry (SDB) (Studi Kasus Perairan Kabupaten Cilacap, Jawa Tengah): Accuracy Analysis of Single Beam Echosounder System (SBES) and Satellite Derived Bathymetry (SDB) Data (Cased Study the Waters of Cilacap Regency, Central Java) Setyawan, Fahreza Okta; Rahman, Alham Danendra; Hidayati, Nurin; Fuad, Mochamad Arif Zainul; Semedi, Bambang; Setyoningrum, Desy
JFMR-Journal of Fisheries and Marine Research Vol. 10 No. 1 (2026): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2026.010.01.4

Abstract

Hidrografi dan batimetri menyediakan informasi kedalaman dan bentuk dasar perairan yang sangat penting bagi navigasi, perencanaan pelabuhan, rekayasa pantai, dan tata ruang laut, terutama pada perairan dinamis dan keruh seperti Kabupaten Cilacap yang berbatasan langsung dengan Samudera Hindia. Penelitian ini bertujuan menganalisis akurasi data batimetri Satellite Derived Bathymetry (SDB) berbasis citra PlanetScope beresolusi tinggi dan membandingkannya dengan hasil pemeruman Single Beam Echosounder System (SBES). Data SBES dikumpulkan menggunakan Garmin 585 C, sedangkan kedalaman SDB diekstraksi dengan algoritma machine learning Generalized Additive Model (GAM). Data dibagi 75% untuk training dan 25% untuk testing, dan kinerja model dinilai menggunakan koefisien determinasi (R²) dan Root Mean Square Error (RMSE). Pengolahan data didukung perangkat lunak SIG dan penginderaan jauh seperti ArcMap, SNAP, ENVI, Global Mapper, RStudio, dan Surfer. Hasil menunjukkan SBES memiliki akurasi tinggi dan tetap menjadi rujukan utama pemetaan dasar perairan Cilacap. Sebaliknya, model SDB–GAM menghasilkan R² sebesar 0,35 dan RMSE 2,80 sehingga belum mampu merepresentasikan variasi kedalaman pada perairan. Nilai ini rendah karena perairan Cilacap yang keruh serta keberadaan sunglint pada citra menyebabkan distorsi reflektansi sehingga kedalaman hasil SDB sulit merepresentasikan variasi kedalaman aktual. Oleh karena itu, SDB – GAM belum direkomendasikan untuk pemetaan operasional di perairan keruh seperti Cilacap tanpa koreksi glint dan peningkatan strategi pemodelan, serta lebih tepat digunakan sebagai pemetaan awal pada kondisi perairan yang lebih jernih dan kedalaman terbatas.   Hydrography and bathymetry provide information on water depth and seabed morphology that is crucial for navigation, port planning, coastal engineering, and marine spatial planning, especially in dynamic and turbid waters such as Cilacap Regency, which borders directly with the Indian Ocean. This study aims to analyze the accuracy of bathymetric data Satellite Derived Bathymetry (SDB) derived from high-resolution PlanetScope imagery and compare it with obtained from Single Beam Echosounder System (SBES) sounding. SBES data were collected using a Garmin 585 C, while SDB depths were extracted using the Generalized Additive Model (GAM) machine learning algorithm. Data were split into 75% for training and 25% for testing, and model performance was evaluated using the coefficient of determination (R²) and Root Mean Square Error (RMSE). Data processing was supported by GIS and remote sensing software such as ArcMap, SNAP, ENVI, Global Mapper, RStudio, and Surfer. The results show that SBES provides high accuracy and remains the primary reference for seabed mapping in Cilacap waters. Conversely, the SDB–GAM model produces an R² of 0.35 and an RMSE of 2.80, indicating that it has not yet adequately represented depth variability in waters. This value is low because the murky waters of Cilacap and the presence of sunglint in the image cause reflectance distortion, making it difficult for the SDB results to represent actual depth variatons. Therefore, SDB-GAM is not yet recommended for operational mapping in murky waters such as Cilacap without glint correction and improved modeling strategies, and is more appropriately used for initial mapping in clearer waters and limited depths.
OPTIMALISASI POTENSI WISATA BAHARI DAN KONSERVASI ALAM UNTUK PENGEMBANGAN EKOWISATA DI DESA SIDOASRI, MALANG SELATAN: ENHANCING MARINE TOURISM AND NATURE CONSERVATION FOR SUSTAINABLE ECOTOURISM DEVELOPMENT IN SIDOASRI VILLAGE, MALANG Hidayati, Nurin; Rudianto; Sartimbul, Aida; Semedi, Bambang; Iranawati, Feni; Yona, Defri; Sari, Syarifah Hikmah Julinda; Setyawan, Fahreza Okta; Setyoningrum, Desy; Hidayat, Esa Fajar
Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium Vol. 4 No. 1 (2026): Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium pada Bulan Juni
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.piskarias.2026.004.01.2

Abstract

Desa Sidoasri merupakan desa pesisir di Kabupaten Malang dengan potensi wisata bahari yang besar, didukung oleh keberadaan Pantai Perawan, Teluk Klatakan, ekosistem terumbu karang, hutan mangrove, serta keanekaragaman biota laut. Namun, potensi tersebut belum dimanfaatkan secara optimal akibat terbatasnya promosi, rendahnya keterlibatan masyarakat, serta belum tersedianya media edukasi dan perencanaan pengembangan berbasis konservasi. Kegiatan Pengabdian kepada Masyarakat Dosen FPIK Universitas Brawijaya Tahun 2025 bertujuan mengoptimalkan potensi wisata bahari dan konservasi alam sebagai dasar pengembangan ekowisata berkelanjutan di Desa Sidoasri. Metode pelaksanaan meliputi identifikasi dan pemetaan potensi melalui observasi lapangan, dokumentasi, dan kajian aspek alam, budaya, serta daya tarik lokal. Kegiatan dilanjutkan dengan pelatihan ekowisata bahari, Focus Group Discussion (FGD), hibah buku karya dosen kepada Pemerintah Desa Sidoasri serta penyusunan buku Eksplorasi Wisata Bahari dan Konservasi Alam di Desa Sidoasri sebagai media edukasi dan promosi. Hasil kegiatan menunjukkan bahwa Desa Sidoasri memiliki potensi ekowisata yang beragam dan layak dikembangkan melalui pendekatan konservasi. Pelaksanaan pelatihan dan FGD meningkatkan pemahaman masyarakat mengenai pengelolaan wisata berbasis konservasi sekaligus menghasilkan rekomendasi pengembangan desa wisata yang lebih partisipatif. Selain itu, tersusunnya buku eksplorasi wisata dan hibah buku dosen menjadi luaran yang mendukung penyebarluasan informasi, edukasi lingkungan, dan promosi destinasi wisata. Secara keseluruhan, program pengabdian ini menghasilkan identifikasi potensi wisata, peningkatan kapasitas masyarakat, media edukasi, serta rekomendasi pengembangan sebagai landasan mewujudkan Desa Sidoasri sebagai desa ekowisata bahari berbasis konservasi alam yang berkelanjutan.   Sidoasri Village is a coastal village in Malang Regency with great marine tourism potential, supported by the presence of Perawan Beach, Klatakan Bay, coral reef ecosystems, mangrove forests, and diverse marine biota. However, this potential has not been optimally utilized due to limited promotion, low community involvement, and the unavailability of educational media and conservation-based development planning. The 2025 Community Service Program conducted by the Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, aimed to optimize the potential of marine tourism and nature conservation as a basis for developing sustainable ecotourism in Sidoasri Village. The program was implemented through the identification and mapping of tourism potential using field observations, documentation, and assessments of natural, cultural, and local tourism attractions. The activities also included marine ecotourism training, Focus Group Discussions (FGDs), a grant of faculty-authored books to the Sidoasri Village Government, and the compilation of the book Exploration of Marine Tourism and Nature Conservation in Sidoasri Village as an educational and promotional resource. The results indicated that Sidoasri Village has diverse ecotourism potential that is feasible for development through a conservation approach. The training sessions and FGDs enhanced community understanding of conservation-based tourism management and generated recommendations for more participatory tourism village development. Furthermore, the publication of the tourism exploration book and the grant of faculty-authored books contributed to information dissemination, environmental education, and tourism promotion. Overall, the community service program successfully identified tourism potential, strengthened community capacity, developed educational resources, and produced strategic recommendations as the foundation for establishing Sidoasri Village as a sustainable conservation-based marine ecotourism destination.
Analisis Distribusi Karakteristik Sampah Laut Menggunakan Unmanned Aerial Vehicle (UAV) di Pantai Pulau Gili Ketapang, Kabupaten Probolinggo, Jawa Timur: Analysis of Marine Debris Distribution Characteristics Using Unmanned Aerial Vehicles (UAV) at Gili Ketapang Island Beach, Probolinggo Regency, East Java Setyoningrum, Desy; Samsu Rijal, Seftiawan; Aulia, Namira; Rumantya, Matthew Adi Bekti
Water and Marine Pollution Journal: PoluSea Vol. 3 No. 1 (2025): Water and Marine Pollution Journal: PoluSea April 2025
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2025.003.01.2

Abstract

Indonesia menempati posisi kedua setelah China sebagai penyumbang sampah terbesar di dunia. Sampah laut berdampak merugikan pada lingkungan, ekosistem, dan manusia. Penelitian ini bertujuan menganalisis distribusi dan karakteristik sampah laut di Pantai Pulau Gili Ketapang, Kabupaten Probolinggo. Metode yang digunakan meliputi pengambilan sampel manual dengan transek berukuran 5 × 5 m dan 1 × 1 m untuk mendapatkan data rinci mengenai jenis dan jumlah sampah, serta analisis citra Unmanned Aerial Vehicle (UAV)/Drone untuk memetakan distribusi sampah dalam cakupan area yang lebih luas. Hasil menunjukkan distribusi sampah laut bervariasi, dengan di Stasiun 3 memiliki kelimpahan sampah tertinggi dengan 38,91 item/m² untuk sampah makro dan 1,67 item/m² untuk sampah mega, yang dipengaruhi oleh aktivitas perikanan dan pelabuhan dan terendah di Stasiun 2 (0,91 item/m² untuk makro dan 0,10 item/m² untuk mega). Sampah plastik mendominasi dengan persentase 69,36%, terutama plastik sekali pakai. Penggunaan UAV/Drone terbukti efektif dalam memetakan distribusi spasial sampah laut secara luas, sementara sampling manual memberikan informasi lebih rinci mengenai jenis sampah. Integrasi kedua metode ini menghasilkan analisis yang lebih komprehensif dalam memahami pola persebaran sampah laut.   Indonesia ranks second after China as the largest contributor to marine debris globally. Marine debris has detrimental impacts on the environment, ecosystems, and human life. This study aims to analyses the distribution and characteristics of marine debris on the coast of Gili Ketapang Island, Probolinggo Regency. The methods used include manual sampling with transects measuring 5 × 5 m and 1 × 1 m to obtain detailed data on the types and quantities of debris, as well as Unmanned Aerial Vehicle (UAV)/Drone imagery analysis to map the debris distribution over a broader area. The results indicate that marine debris distribution varies, with the highest abundance at Station 3, recording 38.91 items/m² for macro debris and 1.67 items/m² for mega debris, influenced by fishing activities and the presence of a harbour, while the lowest was found at Station 2 (0.91 items/m² for macro and 0.10 items/m² for mega debris). Plastic waste dominated, accounting for 69.36%, primarily consisting of single-use plastics. The use of UAV/Drone proved effective in mapping the spatial distribution of marine debris on a large scale, while manual sampling provided more detailed information on debris types. The integration of both methods resulted in a more comprehensive analysis of marine debris distribution patterns.
Community structure and biomass of reef fish concerning coral cover in Sempu Strait, East Java, Indonesia ANDIK ISDIANTO; MUHAMMAD FIKRI ARIEFANDI; MUHAMMAD ARIF ASADI; ADE YAMINDAGO; FAHREZA OKTA SETYAWAN; GATUT BINTORO; ARIEF SETYANTO; TRI DJOKO LELONO; AGUS TUMULYADI; WIRASTIKA ADHIHAPSARI; DESY SETYONINGRUM; AULIA LANUDIA FATHAH; BERLANIA MAHARDIKA PUTRI; SUPRIYADI SUPRIYADI; OKTIYAS MUZAKY LUTHFI
Biodiversitas Journal of Biological Diversity Vol. 25 No. 8 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250808

Abstract

Abstract. Isdianto A, Ariefandi MF, Asadi MA, Yamindago A, Setyawan FO, Bintoro G, Setyanto A, Lelono TD, Tumulyadi A, Adhihapsari W, Setyoningrum D, Fathah AL, Putri BM, Supriyadi, Luthfi OM. 2024. Community structure and biomass of reef fish concerning coral cover in Sempu Strait, East Java, Indonesia. Biodiversitas 25: 3376-3385. Reef fishes were used as bioindicators of biodiversity in coral reef ecosystems. However, coral cover and reef fish abundance around Sempu Strait tended to decrease. The study aims to obtain reef fish's community structure and biomass and their correlation to coral cover. We observed significant variability in reef fish populations through bi-monthly monitoring using an underwater visual census and underwater photo transect conducted from December 2022 to April 2023. Based on these observations, the average range of coral fish abundance was 0.453 to 0.577 individuals per square meter, with the highest value at Rumah Apung station (0.577 ind/m2). The community structure included 81 reef fish species, categorized into major (50 species), indicator (10 species), and target (21 species) groups, demonstrating a community with moderate diversity, stable evenness, and low dominance across the observed stations. Further, the research quantified fish biomass, recording an average of 0.0207 kg/m2 or 207.571 kg/Ha, categorized as low, with the highest biomass measurements at Rumah Apung station (0.0054 kg/m2). Strong correlations were identified between coral cover and both fish abundance (correlation coefficient = 0.741) and biomass (correlation coefficient = 0.666). These results emphasize the profound impact of coral health on the conditions and sustainability of reef fish populations. These findings underscore the critical dependency of reef fish on coral ecosystems and provide essential data for conservation efforts to maintain and restore these vital marine habitats.
Observation of Scleractinian juveniles' composition, distribution, and density in shallow waters of Kondang Merak Beach, Southern Malang, East Java, Indonesia ROSDIANTO ROSDIANTO; OKTIYAS MUZAKY LUTHFI; ANWAN RAHMAT ARDIANSYAH; M. AZUREA BAHRI LUTHFI; ANDIK ISDIANTO; DESY SETYONINGRUM; ARIEF SETYANTO; LISA NUR HIDAYAH; AULIA LANUDIA FATHAH; BERLANIA MAHARDIKA PUTRI; NOVAR KURNIA WARDANA; SUPRIYADI SUPRIYADI
Biodiversitas Journal of Biological Diversity Vol. 25 No. 8 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250839

Abstract

Abstract. Rosdianto, Luthfi OM, Ardiansyah AR, Luthfi MAB, Isdianto A, Setyoningrum D, Setyanto A, Hidayah LN, Fathah AL, Putri BM, Wardana NK, Supriyadi. 2024. Observation of Scleractinian juveniles' composition, distribution, and density in shallow waters of Kondang Merak Beach, Southern Malang, East Java, Indonesia. Biodiversitas 25: 2663-2668. Kondang Merak Waters, a habitat for various hard corals that grow in flat areas of intertidal reefs, serve as a crucial location for understanding the influence of juvenile corals on the dynamics of coral communities in shallow waters. The research was conducted in 2020 in Kondang Merak, which studied the composition and abundance of young corals on natural substrates on shallow reef flats and reef slopes. Quadrant transects measuring 1x1 m were deliberately placed to observe coral juveniles at two research stations. Quadrant transects are placed along a 100-meter line transect. Visible juvenile corals are counted and identified at the genus or species level. The six types of coral juveniles identified are Favites flexuosa, Goniastrea favulus, Goniastrea aspera, Porites lobata, Montipora digitata and Montipora foliosa. The overall density of juveniles is low, ranging from 0.01-0.08 colonies m-2, with the highest density belonging to F. flexuosa and the lowest belonging to M. foliosa. The six species found showed a clustered distribution pattern, except for two species, namely Goniastrea aspera and M. foliosa, which showed a uniform distribution pattern. Coral juveniles have specific strategies depending on biology and environmental factors. This study revealed the distribution and composition of coral juveniles in intertidal areas as representative of dynamic ecosystems in coastal areas.
Co-Authors Ade Yamindago ADI TIYA YANUAR Agung Wahyudi Prasetyo AGUS TUMULYADI Aida Sartimbul Amin, Abd. Aziz ANDIK ISDIANTO ANDIK ISDIANTO ANDIK ISDIANTO Anggita Sekar M ANWAN RAHMAT ARDIANSYAH ARIEF SETYANTO ARIEF SETYANTO ARIEF SETYANTO Attabik Mukhammad Amrillah AULIA LANUDIA FATHAH AULIA LANUDIA FATHAH AULIA LANUDIA FATHAH Aulia, Namira Bambang Semedi BERLANIA MAHARDIKA PUTRI BERLANIA MAHARDIKA PUTRI Citra Syananta Decha Satria Ibnu Faqih Defri Yona DWI CANDRA PRATIWI Faisal Akmal Feni Iranawati, Feni Fuad, Mochamad Arif Zainul GATUT BINTORO Hidayat, Esa Fajar Hidayati, Nurin Imam Akbar Wicaksono KHALIL GIBRAN KRISTINA MARSELA Lisa Nur Hidayah M. AZUREA BAHRI LUTHFI M. Falbian Arsetyo N Maftuch Maftuch MUCHAMAD FAIRUZ HAYKAL MUHAMMAD ARIF ASADI MUHAMMAD FIKRI ARIEFANDI Naufal Fidel Satria Aryasatya NOVAR KURNIA WARDANA OKTIYAS MUZAKY LUTHFI OKTIYAS MUZAKY LUTHFI Rahman, Alham Danendra Riswan Septriayadi Sianturi ROSDIANTO ROSDIANTO Rudianto Rumantya, Matthew Adi Bekti Salamah, Lutfi Ni`Matus Samsu Rijal, Seftiawan Setyawan, Fahreza Okta Siti Al Khumairoh Annadziroh Nurshokh SUPRIYADI SUPRIYADI SUPRIYADI SUPRIYADI SUPRIYADI SUPRIYADI Syarifah Hikmah J. S SYARIFAH HIKMAH JULINDA SARI Syarifah Hikmah Julinda Sari TRI DJOKO LELONO Wirastika Adhihapsari