Mangrove forests provide numerous valuable ecosystem services and can sequester a large volume of carbon that help mitigate climate change impacts. Modeling mangrove with robust valid approaches is crucial to better understanding existing conditions. The study aims estimate Above-Ground Carbon (AGC) at Loh Buaya located in the Komodo National Park (Indonesia) using novel Extreme Gradient Boosting (XGB) Genetic Algorithm (GA) analyses integrating multiple sources remote sensing (optical,...

Coronavirus disease (COVID-19) was firstly identified in Wuhan, China. By 23rd January 2020, China’s Government made a decision to execute lockdown policy Wuhan due the rapid transmission of COVID-19. It is essential investigate land surface temperature (LST) dynamics changes level anthropogenic activities. Therefore, this study aims (1) mean LST differences between during, i.e., December 2019 early March and before emergence COVID-19 Wuhan; (2) conduct spatio-temporal analysis with regards...

Urbanization in Indonesia's cities is increasing, leading to various impacts, including negative consequences due insufficient investment local public infrastructure. assessment primarily relies on examining changes built-up areas over the past decade. These serve as an indicator that can be effectively derived from remote sensing data. In our study, we applied data Google Earth Engine (GEE) catalog delve into urbanization dynamics within Greater Surabaya area, Indonesia. We employed...

Sampah laut merupakan ancaman serius bagi ekosistem mangrove, khususnya di perairan Wonorejo, Kota Surabaya Jawa Timur. Dampak negatif dari penumpukan sampah laut, meliputi gangguan terhadap pertumbuhan menghambat proses respirasi akar dan fotosintesis bibit mangrove. Faktor oseanografi seperti kecepatan arus pasang surut juga mempengaruhi distribusi volume laut. Penelitian bertujuan untuk mengetahui kelimpahan pada mangrove Metode penentuan sampel menggunakan metode purposive sampling yang...

Ekosistem mangrove merupakan salah satu yang paling terdampak oleh pencemaran mikroplastik berasal dari aliran sungai dan aktivitas manusia di sekitarnya. Tingkat kedalaman sedimen dapat memberikan informasi mengenai kelimpahan jenis mikroplastik. Kajian ini bertujuan untuk mengetahui karakteristik pada 1-10 cm 11-20 cm. Sampel diambil tiga stasiun dengan metode purposive sampling dua berbeda (1-10 cm). ekstraksi dilakukan identifikasi menggunakan mikroskop. Ditemukan partikel kawasan Gunung...

Provinsi Sumatera Utara di Indonesia tercatat telah memproduksi komoditas ekspor yang sangat tinggi untuk Ikan Kerapu. Hal ini harus dipertahankan sebagai upaya menjaga keberlangsungan ekonomi perikanan. Salah satu cara mengembangbiakan Kerapu adalah dengan marin akuakultur (marikultur) bergantung pada ekologi lautan seperti keberadaan klorofil-a, Suhu Permukaan Laut (SPL), Muatan Padat Tersuspensi (MPT) dan topografi kedalaman laut (batimetri). Kondisi mudah berubah menghendaki pemantauan...

Mangroves are important ecosystems that help prevent global warming by storing carbon. A study in Alas Purwo National Park aimed to identify the species diversity and estimate market value of total carbon from each mangrove species. The used field sampling indexes. found area has high diversity, with Shannon-Weiner, Margalef, Pielou's Indexes H' = 2.276, J 0.949, R 1.453, respectively. Rhizophora apiculata was dominant Above-Ground Carbon (AGC) Below-Ground (BGC) stocks about 34.73 Mg C Ha-1...

Tidal floods are one of the threats that occur in coastal areas. The impact is felt for community, as well other impacts surrounding ecosystem, namely mangrove population, where tidal continue to can have a serious on community and vegetation because they threaten sustainability mangroves. This research uses GIS map flood inundation areas determine their relationship with biophysical factors. Spearman correlation used between points factors such elevation, slope, distance from rivers beach....

Abstract. Isdianto A, Fewila AR, Rijal SS, Setyanto Fathah AL, Atikawati D, Putri BM, Puspitasari ID, Luthfi OM. 2024. Coral disease prevalence and compromised health in the Sempu Island Nature Reserve, Malang District, Indonesia. Biodiversitas 25: 1404-1412. Since Dutch colonialization era, District's Strait has been designated a natural reserve. Environmental changes human activities have contributed to 14.28% coral cover Strait. This study aims assess detect diseases or conditions. At...

Mangrove is an essential coastal vegetation with multiple abilities to protect the land from any hazards that come sea, also provides a contribution combat global climate change by sequestering carbon in atmosphere on its stem and root system. Measuring amount of can be stored mangroves using terrestrial surveys relatively challenging due harsh environment. Therefore, optional method satellite remote sensing spatial modeling Geographic Information Systems (GIS) needed. This research will...

Kondang Merak Beach has several community groups that inhabit and manage the beach. One of local is Bina Karya Mina fishing group. Apart from fishing, which was their main livelihood, this group fishermen also proficient in diving snorkeling. However, due to lack training for fishermen, equipment there not properly utilized. Knowledge about first aid accident victims needed only when a fishermen’s occurs but can be used help tourists an while snorkeling or swimming at This service activity...

The aim of this study are (1) to assess the damage settlement due lahar flood in area, (2) analyze and (3) allocated space development based on classification settlement. Methods that used GPS Tracking know distribution flood, predetermined criteria spatial autocorrelation pattern result is showing not only caused by house distance river but also materials it. 0,68 (clustered) for Collapse, 0,62 High Damaged, 1,05(clustered) Low 0,64 Medium Damaged) 1,21 No Damaged.

Rising sea levels originating from high tides and inundating land are known as tidal flooding. The cases of floods increasing day by day, especially in areas directly adjacent to the seas. One that prone flooding is North Jakarta. This study aims determine affected flood extent area Jakarta City area. research can be used take preventive action for residents face disaster. height modeling was obtained based on value Mean Sea Level (MSL), Higher High Water (HHWL), trend global rising tides....

Remote sensing-based research in Indonesia using satellite imagery frequently faces the challenge of cloud coverage due to tropical country. One spatial data that can be extracted from is bathymetry. However, cloud-covered water bathymetric extraction still needs examined. This study aims understand ability Landsat 7 ETM+ acquired on 29 July 2013, and 8, 24 2020, as representative non-cloudy image compared 9 August cloudy image. Stumpf algorithm was applied, including a statistical approach...

Abstract Gili Ketapang is an island with many villages activity that has different occupations such as trader, home industry, transportation services, retired workers, fishers, and any other. Ketapang’s ecology condition indicates a decreasing in the quality environment. The environmental effect affects coral conditions decreases fish abundance. purpose of this research to formulating policy for Probolinggo government mid-term years. main target creating map based on GIS zoning system...

Sungai merupakan salah satu wilayah yang harus dijaga kelestariannya, oleh karena itu, penelitian ini bertujuan untuk mendapatkan data tentang kualitas air sungai di outlet pembuangan limbah pabrik penyedap mekanan dari korea dan jepang. Hasilnya akan menjadi perbandingan siapa lebih mencemari lingkungan. Sampel diambil berupa plankton Makroinvertebrata (Indeks Kualitas Air) dengan metode pengambilan sampel purposive judgement sampling. menggunakan net jaring biotilik. Air disaring sebanyak...

This research originated from basic conducted in 2015 on coastal ecosystem restoration Malang Regency and Gresik Regency, East Java Province. The results showed that areas are very vulnerable to flood disasters the intensification of anthropogenic processes. In 2022, it continued with applied related Lamongan Regencies. highest level vulnerability along coastline was Tanjung Widoro Village, Bungah District Regency. Problems occur tidal flooding annually affects area Widoro. disaster washed...

Sungai merupakan salah satu wilayah yang harus dijaga kelestariannya, oleh karena itu, penelitian ini bertujuan untuk mendapatkan data tentang kualitas air sungai di outlet pembuangan limbah pabrik penyedap mekanan dari korea dan jepang. Hasilnya akan menjadi perbandingan siapa lebih mencemari lingkungan. Sampel diambil berupa plankton Makroinvertebrata (Indeks Kualitas Air) dengan metode pengambilan sampel purposive judgement sampling. menggunakan net jaring biotilik. Air disaring sebanyak...

Tsunami events are caused by a series of waves resulted from sudden changes in the water column, seismicactivities such as eruption underwater volcanoes,landslides on cliffs above or below sea, andfalling asteroids. The Meteorology, Climatology, and eophysics Agency released warning potentialearthquake southern part Java Island, including Malang Regency, with magnitude 8.7 onthe Richter’s scale. It means that tsunami amaximum inundation height up to 22 meters coulddestroy Tamban Beach....

The water survey activities in remote areas have many challenges, such as cost, transportation to location, access the boat for survey, manpower, and other factors. This research proposes method of overcome difficulties encountered surveying areas. mini prototype was designed fabricated by using a control system operate water. propulsion power prediction carried out, comparison, similarity fullscale ships with 9.5 knots velocity. Furthermore, wave-making resistance simulated software...