Mangrove marine tourism is one of the tourism sectors involved in large and important projects in tourism development. The transformation of PPN Karangantu from a protected area to marine tourism has caused environmental damage. This continued focus on mass tourism has resulted in environmental damage and pollution of the mangrove area found in PPN Karangantu. The aim of the study was to calculate the area of mangrove forest, the accuracy value of mangrove density and changes in conditions due to the existence of the Karangantu Beach marine tourism area in the last 5 years. The research method uses a mixed method to identify mangrove areas by visually analyzing landsat 8 spectral values using the Google Earth Engine (GEE) platform and by image processing for 2018-2022. The results showed that in 2018 the area of mangrove land was 17.04 ha, which decreased drastically in 2019 to 6.28 ha due to an oil spill that was carried away from Karawang Waters. In 2020 it will be 10.6 ha, in 2021 it will be 9.56 ha and in 2022 it will be 7.32 ha. This decrease area is due to marine tourism activities which damage the mangrove ecosystem land and many visitors do not protect the ecosystem. The use of GEE can provide an overview of the capabilities of Landsat 8 satellite imagery in mapping the mangrove forests in Karangantu Beach.

Mangrove merupakan ekosistem penting dalam sebuah pesisir dan wilayah kepulauan. Ekosistem mangrove ini memberikan dampak langsung kepada masyarakat sekitar. Di pulau yang memiliki tingkat pasang-surut yang tinggi tentunya memiliki dan menjaga ekosistem mangrove dengan benar menjadikan ekosistem mangrove sebagai pelindung daratan dan gelombang laut yang besar. Pulau Tunda merupakan salah satu pulau di Kabupaten Serang yang memiliki banyak ekosistem mangrove. Tetapi masih terdapat beberapa tempat yang memiliki nilai kerapatan hutan mangrove yang kecil. Pada pengabdian kepada masyarakat ini memiliki kegiatan yaitu menanam mangrove bersama warga sekitar pulau Tunda. Kegiatan tersebut bertempat di titik yang memiliki nilai kerapatan mangrove yang kecil dan berbatasan langsung dengan lingkungan masyarakat sekitar. Diharapkan penanaman mangrove ini membantu untuk mengatasi degradasi kawasan hutan mangrove yang kemudian berdampak langsung kepada masyarakat sekitar.

Tujuan dari penelitian ini adalah untuk mengetahui persebaran dan tingkat perubahan luas lahan mangrove di Kecamatan Muara Gembong Kabupaten Bekasi. Metode penelitian yang digunakan pada jurnal ini adalah metode penginderaan jauh (Remote Sensing) dengan mengolah citra satelit landsat 8/ETM+ serta membandingkan hasil citra kawasan hutan mangrove Muara Gembong dari tahun 1990 sampai 2019, kemudian dilakukan teknik klasifikasi data mining untuk menghasilkan informasi serta pola-pola matematis. Bedasarkan hasil analisa data, ditunjukan bahwa di Desa Pantai harapan Jaya terjadi penambahan luas mangrove dari 72.

The Covid-19 pandemic has forced learning to change. As stipulated by the government, students of all levels of education, from early childhood to higher education, must eventually study from home through online learning. The online learning process would be effective if it is supported by media and applications that suit the needs of the students. Currently, the e-learning portals seem to be relatively limited, such as Rumah Belajar, sekolah.mu, Zenius, and Ruang Guru. Online learning particularly for early childhood is unique because in this period children learn new things that will shape themselves. One of the most popular and important methods to apply is the STEAM method (Science, Technology, Engineering, Art, and Mathematics). This method aims to stimulate these five aspects in children. Within this framework, a learning portal that is specifically used for early childhood was made. The output of this research is a learning portal specially used for early age children named the "Play & Fun" portal. In this portal, two main contents are intended to support STEAM learning, namely learning videos of scientific themes and animation-based learning media applications.