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ANALYSIS OF CHANGES IN MANGROVE AREA AND SEDIMENTATION ON THE INDAH KAPUK BEACH USING REMOTE SENSING DATA Zakiyah, Umi
Journal of Environmental Engineering and Sustainable Technology 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.jeest.2020.007.02.1

Currently the construction of reclamation in Jakarta Bay being carried out on several islands that have been approved by the Government of Indonesia and located nearby the Mangroves forests ecosystem which always inundated by seawater and are affected by tides. The purpose of this study were analyzing the changes in the mangrove ecosystem area due to the changes in Total Suspended Solid (TSS) based sedimentation and the effect of hydro-oceanography factors on the TSS. This research was conducted using a literature study, processing the LANDSAT OLI images for the analysis of mangrove changes, TSS analysis, and analysis of the effect of hydro-oceanography on TSS within the years of 2013 to 2020. The results of this study indicate that the area of mangrove forest on the coast of North Jakarta is enlarging by 3-5 ha/year, especially in the reclamation island area due to the process of sedimentation which is influenced by hydrooceanography. High sedimentation can be shown from the high value of Total Suspended Solid (TSS) in the waters. The TSS values processed by the satellites images also showed a significant increase during these years between 2013 to 2020 except December 2018 experienced the lowest value. While the hydro-oceanographic factor has lesser effect on the TSS value compare to mangrove ecosystem in the study area.

Community Structure of Fishes the Association with Seagrasses at Bama Beach, Baluran National Park, Situbondo, East Java Setyanto, Arif; Andriani, Dina; Sulkhani Yulianto, Eko; Tumulyadi, Agus; Bintoro, Gatut; Djoko Lelono, Tri; Adhihapsari, Wirastika; Nur Hidayah, Lisa; Isdianto, Andik; Zakiyah, Umi; Lanudia Fathah, Aulia; Kurnia Wardana, Novar; Mahardika Putri, Berlania
Journal of Marine and Coastal Science Vol. 13 No. 3 (2024): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v13i3.61211

Seagrass bed has an important role for biota in waters. The existence of fish in seagrass is influenced by other ecosystems close to seagrass, such as mangroves and coral reefs. This study focuses on fish associated with seagrass in Bama Beach. The data include seagrass coverage and the number of fish for the Diversity, Uniformity, and Dominance. The study was carried out on March 15 to 20, 2018 using the Underwater Visual Census. Results show that seagrass cover was highest in seagrass stations near mangroves (62,66%), while at stations near coral reefs was 37,66. The composition of fish associated with seagrass near mangroves was 361 individuals, while near reefs was 1.454 individuals. The values of diversity, uniformity, and dominance of fish associated with seagrass near mangroves are 2,62; 0,88; and 0,09 respectively while those associated with coral reefs have values of 2,93; 0,85; and 0,06. Family Aulostomidae was dominant in the morning at the station near mangroves, and in the afternoon was dominated by Apogonidae. At the station near coral reefs, the Family Pomacentridae was dominant both in the morning and afternoon. The seagrass conditions in this study are in the healthy category with quite diverse fishes. The level of fish diversity in seagrass was influenced by habitats associated with seagrasses than seagrass cover levels. The condition of Bama Beach as a conservation area is quite good, but the activity of tourists around the coastline must be monitored to maintain the environment.

Analysis of Total Suspended Matter and Chlorophyll-a Distribution In Prigi Coastal Area using Remote Sensing Umi Zakiyah; Arief Darmawan; Dian Senja Lazuardi
Jurnal Perikanan dan Kelautan Vol. 25 No. 2 (2020): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.2.88-93

Total Suspended Matter (TSM) and chlorophyll-a are water quality parameters which can be mapped using remote sensing. High TSM values could affect chlorophyll-a in phytoplankton for photosynthesis. The aims of this research were to analyze distribution, accuracy, and relationship between TSM and chlorophyll-a based on the imagery and in situ data in Prigi Coastal waters. The method that used in this research was descriptive. The data used was Landsat 8 imagery that captured on May, 20th 2018 and in situ samples taken using purposive sampling technique in 9 locations on May, 19th 2018. From the results of this research, TSM in situ value ranged from 41-64 ppm and imagery value ranged from 44-65 ppm, chlorophyll-a in situ value ranged from 1.15-2.68 mg/m3, and imagery value ranged from 1.24-2.41 mg/m3. From the results of in situ and imagery data obtained the accuracy value for TSM 74.37% and for chlorophyll-a 80.33%. The relationship between the TSM and chlorophyll-a value was y= -0.045x + 3.9103 with a coefficient value 85%, which means that the variable X (TSM) affects the variable Y (chlorophyll-a). The conclusion of this study was Prigi Coastal waters had a value at the threshold of each parameters. So, could be classified as good quality of waters. High accuracy between imagery and in situ data shows that remote sensing method was suitable for use in the Prigi coastal waters.

PENINGKATAN KESADARAN STAKEHOLDER MELALUI SOSIALISASI ILMIAH SUMBERDAYA ABIOTIK DI PANTAI BLEKOK, KABUPATEN SITUBONDO, JAWA TIMUR DALAM RANGKA PENGELOLAAN NYA SEBAGAI WILAYAH EKOWISATA Zakiyah, Umi; Mahmudi, Mohammad; Darmawan, Arief; Supriatna, Supriatna; Mulyanto, Mulyanto; Kurniawan, Andi; Sudaryanti, Sri; Arsyadi, Sulastri
Journal of Rural and Urban Community Empowerment Vol. 3 No. 2 (2022): April
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Pantai merupakan salah satu objek wisata yang memiliki daya tarik bagi wisatawan karena wujud dan suasana yang variatif, dengan melandaskan pada aspek eksplorasi, konservasi, dan pengelolaan secara terpadu. Salah satu aspek pembangunan pada bidang ekowisata diharapkan mampu mewujudkan pengelolaan ekosistem secara berkelanjutan adalah melalui pengembangan ekowisata. Pembangunan pariwisata berkelanjutan harus memanfaatkan sumber daya alam secara optimal sesuai daya dukung sehingga tidak menimbulkan kerusakan, menghormati sosial budaya masyarakat, memastikan manfaat ekonomi yang berkelanjutan serta terdistribusi secara adil pada seluruh stakeholders. Untuk mewujudkan kondisi yang berkelanjutan ini seluruh stakeholder membutuhkan suatu informasi yang ilmiah tentang sumberdaya alam baik biotik maupun abiotik yang dapat memberikan informasi yang selanjutnya akan membantu keputusan dalam menjalankan pengelolaan suatu wilayah ekowisata yang berkelanjutan. Dengan adanya database sumberdaya biotik maupun abiotik ini diharapakan akan memberikan solusi atas segala permasalahan tentang pengelolaan ekowisata secara bijak. Salah satu kegiatan yang dapat dilakukan untuk meningkatkan kesadaran stakeholder dalam melakukan pengelolaan secara berkelanjutan di wilayah pantai ekowisata Blekok ini adalah diawali dengan melakukan penelitian tentang sumberdaya yang terdapat di wilayah ekowisata pantai Blekok. Sehingga dengan adanya data ilmiah ini akan dapat mendukung pengelolaan secara berkelanjutan. Setelah adanya database ini maka solusi yang ditawarkan oleh kegiatan pengabdian masyarakat ini adalah dengan menyampaikan hasil penelitian ilmiah tentang sumber daya alam yang ada di pantai Blekok ini melalui sosialisasi kepada seluruh stakeholder yang berhubungan dan berwenang dalam mengelola Kawasan ini.

Analysis of Total Suspended Matter and Chlorophyll-a Distribution In Prigi Coastal Area using Remote Sensing Zakiyah, Umi; Darmawan, Arief; Lazuardi, Dian Senja
Jurnal Perikanan dan Kelautan Vol. 25 No. 2 (2020): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.2.88-93

Total Suspended Matter (TSM) and chlorophyll-a are water quality parameters which can be mapped using remote sensing. High TSM values could affect chlorophyll-a in phytoplankton for photosynthesis. The aims of this research were to analyze distribution, accuracy, and relationship between TSM and chlorophyll-a based on the imagery and in situ data in Prigi Coastal waters. The method that used in this research was descriptive. The data used was Landsat 8 imagery that captured on May, 20th 2018 and in situ samples taken using purposive sampling technique in 9 locations on May, 19th 2018. From the results of this research, TSM in situ value ranged from 41-64 ppm and imagery value ranged from 44-65 ppm, chlorophyll-a in situ value ranged from 1.15-2.68 mg/m3, and imagery value ranged from 1.24-2.41 mg/m3. From the results of in situ and imagery data obtained the accuracy value for TSM 74.37% and for chlorophyll-a 80.33%. The relationship between the TSM and chlorophyll-a value was y= -0.045x + 3.9103 with a coefficient value 85%, which means that the variable X (TSM) affects the variable Y (chlorophyll-a). The conclusion of this study was Prigi Coastal waters had a value at the threshold of each parameters. So, could be classified as good quality of waters. High accuracy between imagery and in situ data shows that remote sensing method was suitable for use in the Prigi coastal waters.

Heavy Metal Zinc (Zn) in Sediments and Roots of Mangrove Sonneratia Alba and Avicennia Marina Analysis Using Geographic Information System (Gis) at Blekok Village Ecotourism Beach, Situbondo, East Java, Indonesia Zakiyah, Umi; Wardani, Alifya Nurul; Erintika, Dista
JFMR (Journal of Fisheries and Marine Research) Vol. 8 No. 3 (2024): JFMR on November
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.2024.008.03.10

The Kampung Blekok Ecotourism Beach in Situbondo, which features a mangrove ecosystem with key species such as Sonneratia alba and Avicennia marina, is surrounded by various human and natural activities, making it vulnerable to heavy metal pollution such as zinc (Zn). Mangroves play a crucial role in coping with this contamination. The purposes of this study were analyzing the concentration of heavy metal Zn found in the sediment and roots of the mangroves Sonneratia alba and Avicennia marina, and the distribution of heavy metal Zn in the mangrove sediments of Sonneratia alba and Avicennia marina, as well assessing the ability of the mangrove roots of Sonneratia alba and Avicennia marina in accumulating heavy metal Zn. This research used a survey method. The results indicated that the concentration of heavy metal Zn in the mangrove sediment of Sonneratia alba ranges between 0.7431-0.8412 ppm, while in the roots of Sonneratia alba, it ranges between 0.5472-0.7255 ppm. The concentration of heavy metal Zn in the sediment of Avicennia marina ranges between 0.7699-0.8782 ppm, while in the roots of Avicennia marina, it ranges between 0.5884-0.7194 ppm. According to the standards issued by NOAA, ANZECC, and USEPA, the concentration of heavy metal Zn in the sediment is still considered safe because it does not exceed the established quality standards. The Bioconcentration Factor (BCF) or absorption capacity of the mangrove roots of Sonneratia alba ranges between 0.724-0.8624 ppm, while for Avicennia marina, it ranges between 0.7309-0.8407 ppm. The BCF values in both mangroves indicated that both were excluders. Statistical tests show that there was no significant difference between the abilities of the two types of mangroves to accumulate heavy metal Zn. The map results based on IDW interpolation on the sediment of Sonneratia alba are shown with a dark gradient indicating the highest Zn concentration at stations 5 and 6, while the lightest gradient indicating the lowest concentration at station 1. The distribution of heavy metal Zn concentration in the mangrove sediment of Avicennia marina is shown with a dark gradient at station 6 and a light gradient at station 2.

MAPPING OF NDVI INDEX BASED MANGROVE AREA AND DENSITY CHECTARENGES USING LANDSAT 8 SATELLITES IMAGES IN NORTHERN COASTAL AREA OF EAST JAVA PROVINCE, INDONESIA Zakiyah, Umi; Gayatri, Alifia; Maharani, Patricia Dita; Mulyanto, Mulyanto; Arfiati, Diana; Loka, Widi Ayom
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.6

Mangrove ecosystems are important for maintaining ecological balance in coastal areas. To monitor changes in mangrove area and density, remote sensing technology with Landsat 8 and NDVI Index was used. The research focuses on the North Coast of East Java, from 2019-2024, on the coast of Surabaya, Sidoarjo, Pasuruan, Probolinggo, and Situbondo. The purpose of this study is to analyze changes in mangrove area and density. The survey method was conducted with Landsat 8 images and in situ data in 2024. There are 5 observation station points with the determination of station points using purposive sampling technique. Accuracy test using RMSE. The area of mangroves on the coast of Surabaya, Sidoarjo and Pasuruan from 2019 to 2024 ranged from 1611.88 ha-2270.41 ha. The highest cover area was in 2024 and the lowest in 2019. Mangroves with sparse NDVI category ranged from 46640.61 ha-53284.95 ha. Moderate NDVI ranged from 4313.25 ha-6984.72 ha and dense NDVI ranged from 493.29 ha-4711.5 ha. The area of mangroves on the coast of Probolinggo and Situbondo increased from 2019-2024, which amounted to 1487.05 ha-1885.79 ha. Mangroves with sparse NDVI category have an area between 51367.12 ha-54852.64 ha. Moderate NDVI ranged from 5564.87 ha-54852.64 ha and high NDVI ranged from 668.18 ha-1585.52 ha. The results show that there are changes in the area and density of mangroves on the north coast of East Java every year. These changes need to be monitored annually to address the decline in mangrove area and density quickly and appropriately.

Suspended Sediment Analysis of Changes in Mangrove Forest Area Using Sentinel-2 Imagery at Citarum River Estuary, Muara Gembong District, Bekasi Regency Zakiyah, Umi; Tricahyo, R. Bagas; Rusydi, Alfi Nur Rusydi
Jurnal Perikanan dan Kelautan Vol. 30 No. 1 (2025): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.30.1.96-106

This study investigates the distribution of suspended sediments and the dynamics of mangrove forest areas in the Citarum River Estuary, Muara Gembong District, Bekasi Regency, over three observation periods: 2018, 2021, and 2024. The research employs a survey method with an associative approach. Suspended sediment samples were collected using a simple random sampling technique at eight designated locations within the estuary. The analysis of suspended sediment distribution utilized Sentinel-2A satellite imagery, with the Wirasatriya algorithm identified as the most effective for this purpose. The findings indicate an increase in the total area of suspended sediments over time, measuring 1,134.92 hectares in 2018, 1,244.74 hectares in 2021, and 1,254.38 hectares in 2024. Additionally, there was a notable shift in sediment concentration patterns, with low-concentration sediments (63.19%) dominating in 2018, while medium concentrations (100–220 mg/L) became more prevalent in 2021 (43.90%) and 2024 (47.65%). Mangrove forest areas were classified using a supervised classification method integrated with the random forest algorithm. The results revealed a continuous increase in mangrove forest cover during the study period, with a 20.01% expansion between 2018 and 2021, followed by an additional 30.65% growth from 2021 to 2024. Correlation analysis demonstrated a strong association between suspended sediment distribution and changes in mangrove forest area, with a correlation coefficient of 0.814 and a determination coefficient of 0.662. These findings highlight the interconnected dynamics of sediment distribution and mangrove forest development in the estuarine environment

Suspended Sediment Analysis of Changes in Mangrove Forest Area Using Sentinel-2 Imagery at Citarum River Estuary, Muara Gembong District, Bekasi Regency Zakiyah, Umi; Tricahyo, R. Bagas; Rusydi, Alfi Nur Rusydi
Jurnal Perikanan dan Kelautan Vol. 30 No. 1 (2025): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.30.1.96-106

This study investigates the distribution of suspended sediments and the dynamics of mangrove forest areas in the Citarum River Estuary, Muara Gembong District, Bekasi Regency, over three observation periods: 2018, 2021, and 2024. The research employs a survey method with an associative approach. Suspended sediment samples were collected using a simple random sampling technique at eight designated locations within the estuary. The analysis of suspended sediment distribution utilized Sentinel-2A satellite imagery, with the Wirasatriya algorithm identified as the most effective for this purpose. The findings indicate an increase in the total area of suspended sediments over time, measuring 1,134.92 hectares in 2018, 1,244.74 hectares in 2021, and 1,254.38 hectares in 2024. Additionally, there was a notable shift in sediment concentration patterns, with low-concentration sediments (63.19%) dominating in 2018, while medium concentrations (100–220 mg/L) became more prevalent in 2021 (43.90%) and 2024 (47.65%). Mangrove forest areas were classified using a supervised classification method integrated with the random forest algorithm. The results revealed a continuous increase in mangrove forest cover during the study period, with a 20.01% expansion between 2018 and 2021, followed by an additional 30.65% growth from 2021 to 2024. Correlation analysis demonstrated a strong association between suspended sediment distribution and changes in mangrove forest area, with a correlation coefficient of 0.814 and a determination coefficient of 0.662. These findings highlight the interconnected dynamics of sediment distribution and mangrove forest development in the estuarine environment

Mangrove Conservation Based Strategy in Ecotourism Development as Part of “Banyuurip Mangrove Centre’’ Coastal Resources Management in Gresik Regency, East Java, Indonesia Umi Zakiyah; Woro Wuninggar
Jurnal Natur Indonesia Vol. 22 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.1.41-47

Banyuurip Mangrove Center (BMC) is a form of mangrove ecosystem conservation and utilization in Banyuurip Village that still faces obstacles in its ecotourism sector management. This study aims to determine the condition of mangroves in BMC, identify Internal Factor Analysis Summary (IFAS) and External Factor Analysis Summary (EFAS), and develop the best strategies for BMC management based on its mangrove condition. This research uses a survey method that includes the data obtained from respondents and the in-situ data on mangrove conditions. Analysis of mangrove data includes identification of species, density, and relative density. Meanwhile, data from the respondents, including tourists and management staff, were analyzed using SWOT analysis. Based on research results, it was known that mangroves in BMC are in relatively good condition. From the respondent questionnaire using SWOT analysis, the best strategy to be suggested is the SO strategy. These strategies must include government support by maximizing its advantages, utilizing social media for promotion, developing mangrove nurseries to produce quality mangrove seedlings, collaborating with Perlindungan Masyarakat (LINMAS) or Community Protection to improve security, and their economic sector by involving the society in another factor of the ecotourism management such as mangrove processing

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