Remote sensing is one of the effective methods of monitoring mangrove ecosystems. One of the chal... more Remote sensing is one of the effective methods of monitoring mangrove ecosystems. One of the challenges in implementing this method is image resolution. Access to large-resolution imagery as a basic material for spatial analysis is not cheap. Unmanned small aircraft systems (SPUKTA) or drones are able to answer these challenges. Orthophotos obtained from the acquisition of drones are capable of producing large-resolution imagery. This method is then implemented in conservation areas, to facilitate the process of identifying mangrove species in the area. The drone was flown at an altitude of 150 m with a pavement value of 85% for 4 flying missions. The result of processing 1614 aerial photos into orthophotos produced images with a GSD resolution of 4.75 cm/pix. These images are then analyzed with on-screen digitization techniques and visual interpretation. From the total area of the study area of 46.48 ha obtained the digitization results of Rhizophora sp. with a total area of 24.68 ...
Tides are the rise and fall of sea level caused by the attraction of objects in the sky, especial... more Tides are the rise and fall of sea level caused by the attraction of objects in the sky, especially the moon and sun, to the mass of seawater on earth. Tidal research is useful for providing information about the components and types of tides and predicting tides and for mitigating natural disasters. Tidal measurements were carried out in the Nasik Strait, Bangka Belitung using the Valeport 106 tool. Tidal data was processed using the Admiralty Method. The Admiralty method is a method used to calculate tidal harmonic constants from observations of water levels. With this method, it is possible to know the amplitude and phase difference of the tides, the value of the Formzahl number, and the type of tide. From the results of data processing and analysis, the value of the Formzahl number in the waters of the Nasik Strait is 11,454 and the tidal type is a single daily tidal type that only occurs at one high tide and one low tide in one day.Keywords: tides; tidal types; admiralty method...
Cijulang River is one of the leading ecotourism objects in Pangandaran, West Java Province, Indon... more Cijulang River is one of the leading ecotourism objects in Pangandaran, West Java Province, Indonesia. However, the river has a variety of activities that can increase the water pollution in the river such as Green Canyon cliffs tourism, ecotourism of mangrove conservation, housing, and industrial siting. Macrobenthos is one of the bio-indicators that can assess the rate of water pollution in rivers, especially their organic pollutants. Therefore, this research aims to determine water pollution status in Cijulang River Tourism by comparing various biotic indices. The study was conducted at four site sampling locations from upstream to downstream in the rainy season period and dry season period using different methods namely, line transect model, water quality assessment by biological indexing (diversity, species dominant, and family biotic), species deficit, and organic measurement. The research showed 5873 macrobenthos and divided into 27 species with an average abundance of 167 in...
Mangroves are forest vegetation that grows between tidal lines so that mangrove forests are also ... more Mangroves are forest vegetation that grows between tidal lines so that mangrove forests are also called tidal forests. Mangrove ecosystems have high biodiversity. The mangrove ecosystem has a physical function to protect the coast from abrasion and erosion, this ecosystem also has ecological and economic value. The purpose of this study was to determine the condition and extent of mangrove distribution on the coast of Karawang Regency. The research was carried out on the coast of Karawang Regency from March to June 2021. The data used is primary data by directly observing the research location and secondary data using remote sensing data from the Landsat 8 satellite. Image data processing and analysis is carried out using the NDVI (Normalized Difference Vegetation Index) method which can create a boundary between mangrove and non-mangrove. With this method, it can be seen the changes in the mangrove distribution area from year to year. The results of data processing and analysis sho...
Pada umumnya pembuatan garam secara tradisional menggunakan teknologi evaporasi air laut memerl... more Pada umumnya pembuatan garam secara tradisional menggunakan teknologi evaporasi air laut memerlukan waktu 20 hari per panen garam, sedangkan dengan metode Maduresse Berisolator memerlukan waktu 12 hari per panen garam. Tujuan penelitian ini adalah untuk melakukan inovasi teknologi evaporasi air laut dengan uji coba aplikasi teknologi tepat guna dalam percepatan pembuatan garam dengan Metode Sprinkle Bertingkat. Penelitian ini dilakukan selama 3 bulan mulai bulan Agustus sampai dengan bulan Oktober 2019 sebanyak 30 kali ulangan dan menghasilkan data rata – rata 3 oBe menjadi 9,78 oBe per hari. Hasil penelitian ini dengan Metode Sprinkle Bertingkat dalam waktu 6 hari menghasilkan kristal garam atau lebih cepat 6 hari per panen, jika dibandingkan dengan Metode Maduresse Berisolator. Percepatan pembuatan garam ini terjadi karena adanya inovasi teknologi dengan menambahkan alat berupa sprinkle yang berfungsi menyemprotkan air laut ke udara sehingga mempercepat terlepasnya H2O dari air...
Pangandaran rocky shores have a unique ecosystem and a variant of invertebrate organisms such as ... more Pangandaran rocky shores have a unique ecosystem and a variant of invertebrate organisms such as mollusk from the gastropod class. This study aims to analyze the biodiversity of gastropods on the rocky shore of Karapyak beach. This research consists of 5 stations. The quadrant set by 1 m x 1 m vertically toward the sea. The result found 773 individuals scattered in nine families. The family of Neritidae dominated (43%), followed by family cyprinoids with 6.3%. Nerita plicata is a species found to dominate in every station with an average abundance (256 ± 10) and/m2. Using the Bray-Curtis cluster analysis, showed variations in the distribution and abundance of different gastropods vertically into the ocean and uniformly distributed horizontally to the shore. Substrate and tidal are the main variables in the spatial distribution of gastropods in the Karapyak beach.
Remote sensing is one of the effective methods of monitoring mangrove ecosystems. One of the chal... more Remote sensing is one of the effective methods of monitoring mangrove ecosystems. One of the challenges in implementing this method is image resolution. Access to large-resolution imagery as a basic material for spatial analysis is not cheap. Unmanned small aircraft systems (SPUKTA) or drones are able to answer these challenges. Orthophotos obtained from the acquisition of drones are capable of producing large-resolution imagery. This method is then implemented in conservation areas, to facilitate the process of identifying mangrove species in the area. The drone was flown at an altitude of 150 m with a pavement value of 85% for 4 flying missions. The result of processing 1614 aerial photos into orthophotos produced images with a GSD resolution of 4.75 cm/pix. These images are then analyzed with on-screen digitization techniques and visual interpretation. From the total area of the study area of 46.48 ha obtained the digitization results of Rhizophora sp. with a total area of 24.68 ...
Tides are the rise and fall of sea level caused by the attraction of objects in the sky, especial... more Tides are the rise and fall of sea level caused by the attraction of objects in the sky, especially the moon and sun, to the mass of seawater on earth. Tidal research is useful for providing information about the components and types of tides and predicting tides and for mitigating natural disasters. Tidal measurements were carried out in the Nasik Strait, Bangka Belitung using the Valeport 106 tool. Tidal data was processed using the Admiralty Method. The Admiralty method is a method used to calculate tidal harmonic constants from observations of water levels. With this method, it is possible to know the amplitude and phase difference of the tides, the value of the Formzahl number, and the type of tide. From the results of data processing and analysis, the value of the Formzahl number in the waters of the Nasik Strait is 11,454 and the tidal type is a single daily tidal type that only occurs at one high tide and one low tide in one day.Keywords: tides; tidal types; admiralty method...
Cijulang River is one of the leading ecotourism objects in Pangandaran, West Java Province, Indon... more Cijulang River is one of the leading ecotourism objects in Pangandaran, West Java Province, Indonesia. However, the river has a variety of activities that can increase the water pollution in the river such as Green Canyon cliffs tourism, ecotourism of mangrove conservation, housing, and industrial siting. Macrobenthos is one of the bio-indicators that can assess the rate of water pollution in rivers, especially their organic pollutants. Therefore, this research aims to determine water pollution status in Cijulang River Tourism by comparing various biotic indices. The study was conducted at four site sampling locations from upstream to downstream in the rainy season period and dry season period using different methods namely, line transect model, water quality assessment by biological indexing (diversity, species dominant, and family biotic), species deficit, and organic measurement. The research showed 5873 macrobenthos and divided into 27 species with an average abundance of 167 in...
Mangroves are forest vegetation that grows between tidal lines so that mangrove forests are also ... more Mangroves are forest vegetation that grows between tidal lines so that mangrove forests are also called tidal forests. Mangrove ecosystems have high biodiversity. The mangrove ecosystem has a physical function to protect the coast from abrasion and erosion, this ecosystem also has ecological and economic value. The purpose of this study was to determine the condition and extent of mangrove distribution on the coast of Karawang Regency. The research was carried out on the coast of Karawang Regency from March to June 2021. The data used is primary data by directly observing the research location and secondary data using remote sensing data from the Landsat 8 satellite. Image data processing and analysis is carried out using the NDVI (Normalized Difference Vegetation Index) method which can create a boundary between mangrove and non-mangrove. With this method, it can be seen the changes in the mangrove distribution area from year to year. The results of data processing and analysis sho...
Pada umumnya pembuatan garam secara tradisional menggunakan teknologi evaporasi air laut memerl... more Pada umumnya pembuatan garam secara tradisional menggunakan teknologi evaporasi air laut memerlukan waktu 20 hari per panen garam, sedangkan dengan metode Maduresse Berisolator memerlukan waktu 12 hari per panen garam. Tujuan penelitian ini adalah untuk melakukan inovasi teknologi evaporasi air laut dengan uji coba aplikasi teknologi tepat guna dalam percepatan pembuatan garam dengan Metode Sprinkle Bertingkat. Penelitian ini dilakukan selama 3 bulan mulai bulan Agustus sampai dengan bulan Oktober 2019 sebanyak 30 kali ulangan dan menghasilkan data rata – rata 3 oBe menjadi 9,78 oBe per hari. Hasil penelitian ini dengan Metode Sprinkle Bertingkat dalam waktu 6 hari menghasilkan kristal garam atau lebih cepat 6 hari per panen, jika dibandingkan dengan Metode Maduresse Berisolator. Percepatan pembuatan garam ini terjadi karena adanya inovasi teknologi dengan menambahkan alat berupa sprinkle yang berfungsi menyemprotkan air laut ke udara sehingga mempercepat terlepasnya H2O dari air...
Pangandaran rocky shores have a unique ecosystem and a variant of invertebrate organisms such as ... more Pangandaran rocky shores have a unique ecosystem and a variant of invertebrate organisms such as mollusk from the gastropod class. This study aims to analyze the biodiversity of gastropods on the rocky shore of Karapyak beach. This research consists of 5 stations. The quadrant set by 1 m x 1 m vertically toward the sea. The result found 773 individuals scattered in nine families. The family of Neritidae dominated (43%), followed by family cyprinoids with 6.3%. Nerita plicata is a species found to dominate in every station with an average abundance (256 ± 10) and/m2. Using the Bray-Curtis cluster analysis, showed variations in the distribution and abundance of different gastropods vertically into the ocean and uniformly distributed horizontally to the shore. Substrate and tidal are the main variables in the spatial distribution of gastropods in the Karapyak beach.
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