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All Journal Geo Media: Majalah Ilmiah dan Informasi Kegeografian Jambura Geoscience Review Environmental and Materials
Gracia, Enrico
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Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Physics

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Spatial Study of Eel Larva Habitat in Ciletuh Bay Waters, Sukabumi Regency, West Java Annisa, Illa; Supriatna, Supriatna; Shidiq, Iqbal Putut Ash; Indra, Tito Latif; Gracia, Enrico
Jambura Geoscience Review Vol 6, No 1 (2024): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jgeosrev.v6i1.21796

Abstract

Eels (Anguilla spp.) are highly nutritious fish that are widely consumed. Ciletuh Bay, situated opposite the Indian Ocean, is a natural habitat for eel larvae. The migration of eel larvae is influenced by various oceanographic factors, including salinity, sea surface temperature, and chlorophyll-a. In order to support fisheries activities in Sukabumi Regency, it is important to identify the optimal habitat for eel larvae and obtain information about their abundance. This study used remote sensing techniques and two algorithms, the Cilamaya Algorithm to estimate salinity and the Wibowo Algorithm to estimate chlorophyll-a. The study was conducted during the wet, dry, and transitional months of 2019 and 2020 in Ciletuh Bay. The potential areas for eel larvae were found to be concentrated at the mouth of the river during the wet month, at the estuary and the shore during the dry month and the first transitional month, and tended to spread during the second transitional month. The largest potential area was found during the dry month of 2019, covering an area of 3.44 km2, but the potential was more stable during the wet months.
Spatial and temporal study of estimating carbon stocks distribution of mangrove forest in coastal area of Teluknaga, Tangerang Yumnaristya, Syefiara Hania; Indra, Tito Latif; Supriatna; Pin, Tjiong Giok; Gracia, Enrico
Environmental and Materials Vol. 1 No. 2: (December) 2023
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/eam.v1i2.2023.270

Abstract

Coastal mangrove forests play a crucial role in balancing carbon emissions in the atmosphere as they are a significant carbon store. Previous studies have shown that mangroves can absorb carbon four times more efficiently than terrestrial tropical forests. Unfortunately, the massive development and land use changes in Teluknaga District's coastal areas threaten these ecosystems' existence. To address this concern, efforts are being made to increase conservation, including estimating carbon stock. The aim of this study is to analyze the spatial distribution of biomass and carbon stock of mangrove forests in Teluknaga between 2016-2022 based on vegetation indices such as ARVI, EVI, and SAVI. Sentinel-2 was calculated into ARVI, EVI, and SAVI vegetation indices to model biomass. Statistical correlation analysis was also used to determine the best vegetation index to model biomass in the coastal area of Teluknaga District. This study found that the ARVI vegetation index had the best correlation (R = 0.60) for modeling biomass, with an RMSE value of 36.67 kg/pixel. Most mangrove forests in the coastal area of Teluknaga District showed an increase in biomass and carbon stock between 2016-2022, with significant growth in Muara and Lemo villages' mangrove forests, which is in line with an increase in the area and density of mangrove forests.
Daya Dukung Lahan Permukiman Berbasis Kemampuan Lahan di Wilayah Peri-Urban (Studi Kasus: Kabupaten Bekasi, Kabupaten Tangerang dan Kabupaten Bogor) Fadhilah, Raina Arfa; Dimyati, Muhammad; Indra, Tito Latif; Gracia, Enrico
Geomedia Majalah Ilmiah dan Informasi Kegeografian Vol. 22 No. 1 (2024): Geo Media: Majalah Ilmiah dan Informasi Kegeografian
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/gm.v22i1.65367

Abstract

Lahan merupakan sumberdaya penting yang kebutuhannya terus meningkat. Namun, ketersediaannya tidak bertambah yang memicu alih fungsi lahan di perkotaan, dan berefek pada perluasan lahan permukimannya ke pinggiran kota, yang disebut peri-urbanisasi. Jabodetabekjur adalah wilayah metropolitan terpadat di Indonesia dengan Kota Jakarta sebagai kota inti dan peri-urban, khususnya Kabupaten Bekasi, Kabupaten Tangerang dan Kabupaten Bogor. Penelitian ini bertujuan mengevaluasi daya dukung lahan permukiman berbasis kemampuan lahan berdasarkan dinamika fisik, sosial dan ekonomi wilayah peri-urban Kota Jakarta sebagai salah satu upaya perencanaan, pemanfaatan dan pengawasan lahan berkelanjutan. Metode yang digunakan dalam penelitian ini adalah studi literatur dengan data-data yang dikumpulkan dari sumber terkait. Hasil menunjukkan bahwa kemampuan pengembangan lahan permukiman di Kabupaten Bekasi, Kabupaten Tangerang, dan Kabupaten Bogor masih cukup tinggi, tepatnya masing-masing sebesar 97%, 98% dan 45,96% dan memiliki status daya dukung permukiman surplus masing-masing sebesar  2,6, 2,7, dan 1,87. Lahan permukiman potensial yang dihasilkan membentuk pola menyebar menuju dataran rendah dan wilayah studi kasus memiliki wilayah yang sudah bersifat kekotaan.
Co-Authors Annisa, Illa Fadhilah, Raina Arfa Muhammad Dimyati Pin, Tjiong Giok Shidiq, Iqbal Putut Ash Supriatna Supriatna Supriatna Tito Latif Indra Yumnaristya, Syefiara Hania