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The Effectiveness of Regulation in Improving the Fishing Port Services Dirman, Eris Nur; Riniwati, Harsuko; Harahab, Nuddin; Semedi, Bambang; Rachmansyah, Arief
Jurnal Pembangunan dan Alam Lestari Vol. 15 No. 2 (2024): Jurnal Pembangunan dan Alam Lestari
Publisher : Postgraduate School of Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2024.015.02.02

Indonesia is a maritime nation with a potential economy in the fishing sector. However, the sustainability of Indonesia's fishing sector is facing many challenges, such as overfishing, illegal fishing activities, and the degradation of marine habitats. The fishing ports play a significant role in overcoming these challenges. Therefore, the government has developed several regulations to ensure the fisheries ports provide a safe and efficient way for fishing activities, an economic center for many coastal communities, and sustainable fishing operations. There is a need to assess the effectiveness of these regulations; hence, this research aims to analyze the effectiveness of regulation in improving the services in the fishing ports. The method of stratified random sampling in proportion was conducted to select 291 participants of administrative offices, fishing companies, and fisherman organizations from 6 fishing ports in east Java Province. This research used structural equation modeling (SEM) as a comprehensive approach to assessing the effectiveness of regulation in fishing ports. The result found that the regulation variable has a significant relationship with port services that = 5.099 (p<0,001). The analysis showed that the regulation variable indirectly affects the port services variable through infrastructure, economy, and social community variables (p<0,001). Furthermore, the result recommended that the regulation will enhance port services by improving the physical infrastructure of the port, boosting the local economy, and benefiting the social community. These findings have significant implications for the fishing industry, as they demonstrate the potential for regulations to improve the efficiency and sustainability of fishing port services. Keywords: Effective, Fishing port, Regulation, Structural equation modeling, Port services

Study of Coral Reef Distribution in Pejarakan Waters, Bali Using Sentinel-2A Imagery Bambang Semedi; Seftiawan Samsu Rijal; Dhika Anggi Arviani
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.118-124

The existence of coral reef ecosystems in Indonesia is a potential marine resource that needs to be preserved due to the many benefits of the coral reef ecosystem. Utilization of Sentinel-2A imagery for coral reef mapping can be done using two approaches, namely pixel-based and object-based. In this study, pixel-based classification and object-based classification are used to determine the dynamics of the distribution of coral reefs in the waters of Pejarakan Village, Bali, during the dry and rainy seasons. The data used are Sentinel-2A image data for 2018, 2020, and 2022 and field data used for the research accuracy test process. Field data was collected using the purposive sampling method, and the accuracy test process was carried out using the confusion matrix method. The data processing results using pixel and object classification show that classification using the object classification method is considered more accurate than pixel classification because it produces an accuracy value of up to 69.4%. Meanwhile, the pixel classification accuracy value is only 61.1%.

Analysis of Coastline Changes in Palu Bay, Central Sulawesi after the 2018 Tsunami Based on Sentinel 1 Satellite Imagery Using the Digital Shoreline Analysis System (DSAS) Method Mochamad Arif Zainul Fuad; Fikri Hardiansyah; Bambang Semedi
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.3.304-312

The Palu-Donggala earthquake that occurred on September 28, 2018 caused additional disasters in the form of liquefaction and tsunami. The tsunami that hit the coastal area of Palu Bay caused considerable damage, indicating a change in the coastline. The purpose of this study was to determine the changes in the coastline that occurred in Palu Bay, Palu City, Central Sulawesi as a result of the Tsunami. The data used in this study are Sentinel 1 satellite imagery before and after the Tsunami occurred. The coastline at each time is obtained from the extraction of Sentinel 1 satellite imagery. Analysis of shoreline change uses quantitative descriptive techniques with the help of the DSAS tool with change analysis based on the Net Shoreline Movement (NSM) method which is integrated with ArcGIS software. The results show that there has been a significant change in the coastline in Palu Bay, Palu City, Central Sulawesi. Coastline changes that occur are in the form of abrasion and accretion conditions, but are more dominated by abrasion. The highest abrasion of -167.53m is found on transect 309 which is located in the District of Mantikulore, and the lowest abrasion value of -0.43m is found on transect 242 which is located in the Ulujadi District. Meanwhile, the highest accretion value of 47.27m is found on transect 105 which is located in the West Palu District, and the lowest abrasion value of 0.56m is found on transect 68 which is also located in the West Palu District. The magnitude of the change in coastline that occurred in Palu Bay, Palu City, Central Sulawesi after the Tsunami was influenced by the openness of the coastal area to wave blows, the oval and narrow morphology of Palu Bay and the occurrence of ground deformation in the Palu-Koro Fault.

SPATIO-TEMPORAL ANALYSIS OF CHANGES IN CORAL REEF AREA USING LANDSAT 8 SATELLITE IMAGERY ON PARI ISLAND, KEPULAUAN SERIBU, DKI JAKARTA Akmal, Faisal; Semedi, Bambang; Ulfa, Azura
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 21, No 1 (2024)
Publisher : Ikatan Geografi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2024.v21.a3894

Coral reefs are ecosystems that are sensitive to change. High pressure can cause damage to coral reefs. Monitoring the condition of coral reefs needs to be done to know the current condition. One way that can be used to monitor coral reefs is by utilizing remote sensing. The research was conducted to know the changes in the coral reef area and the factors that influence the changes in the coral reef area in Pari Island, Kepulauan Seribu, DKI Jakarta in the period 2013 to 2022. The research was conducted using Landsat 8 image data from 2013 to 2022. Image data processing was done with an object-based classification method. Coral cover measurements were conducted using the Line Intercept Transect (LIT) method. The results showed a change in coral reef area of 7.02 ha with the condition of live coral cover ranging from 27-43% which is included in the fair category. The results of field measurements show that the condition of water parameters falls into the unsuitable category. The increase in area that occurred was thought to be due to management activities carried out by the Pari Island community and activities carried out by LIPI in 2016, namely conducting coral reef restoration. The decrease in area is partly due to coastal reclamation activities, destructive tourist activities, and parameter conditions.

Study of Coral Reef Distribution in Pejarakan Waters, Bali Using Sentinel-2A Imagery Semedi, Bambang; Rijal, Seftiawan Samsu; Arviani, Dhika Anggi
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.118-124

The existence of coral reef ecosystems in Indonesia is a potential marine resource that needs to be preserved due to the many benefits of the coral reef ecosystem. Utilization of Sentinel-2A imagery for coral reef mapping can be done using two approaches, namely pixel-based and object-based. In this study, pixel-based classification and object-based classification are used to determine the dynamics of the distribution of coral reefs in the waters of Pejarakan Village, Bali, during the dry and rainy seasons. The data used are Sentinel-2A image data for 2018, 2020, and 2022 and field data used for the research accuracy test process. Field data was collected using the purposive sampling method, and the accuracy test process was carried out using the confusion matrix method. The data processing results using pixel and object classification show that classification using the object classification method is considered more accurate than pixel classification because it produces an accuracy value of up to 69.4%. Meanwhile, the pixel classification accuracy value is only 61.1%.

Analysis of Coastline Changes in Palu Bay, Central Sulawesi after the 2018 Tsunami Based on Sentinel 1 Satellite Imagery Using the Digital Shoreline Analysis System (DSAS) Method Fuad, Mochamad Arif Zainul; Hardiansyah, Fikri; Semedi, Bambang
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

The Palu-Donggala earthquake that occurred on September 28, 2018 caused additional disasters in the form of liquefaction and tsunami. The tsunami that hit the coastal area of Palu Bay caused considerable damage, indicating a change in the coastline. The purpose of this study was to determine the changes in the coastline that occurred in Palu Bay, Palu City, Central Sulawesi as a result of the Tsunami. The data used in this study are Sentinel 1 satellite imagery before and after the Tsunami occurred. The coastline at each time is obtained from the extraction of Sentinel 1 satellite imagery. Analysis of shoreline change uses quantitative descriptive techniques with the help of the DSAS tool with change analysis based on the Net Shoreline Movement (NSM) method which is integrated with ArcGIS software. The results show that there has been a significant change in the coastline in Palu Bay, Palu City, Central Sulawesi. Coastline changes that occur are in the form of abrasion and accretion conditions, but are more dominated by abrasion. The highest abrasion of -167.53m is found on transect 309 which is located in the District of Mantikulore, and the lowest abrasion value of -0.43m is found on transect 242 which is located in the Ulujadi District. Meanwhile, the highest accretion value of 47.27m is found on transect 105 which is located in the West Palu District, and the lowest abrasion value of 0.56m is found on transect 68 which is also located in the West Palu District. The magnitude of the change in coastline that occurred in Palu Bay, Palu City, Central Sulawesi after the Tsunami was influenced by the openness of the coastal area to wave blows, the oval and narrow morphology of Palu Bay and the occurrence of ground deformation in the Palu-Koro Fault.

Analysis of Coastline Changes in Palu Bay, Central Sulawesi after the 2018 Tsunami Based on Sentinel 1 Satellite Imagery Using the Digital Shoreline Analysis System (DSAS) Method Fuad, Mochamad Arif Zainul; Hardiansyah, Fikri; Semedi, Bambang
Jurnal Perikanan dan Kelautan Vol. 27 No. 3 (2022): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

The Palu-Donggala earthquake that occurred on September 28, 2018 caused additional disasters in the form of liquefaction and tsunami. The tsunami that hit the coastal area of Palu Bay caused considerable damage, indicating a change in the coastline. The purpose of this study was to determine the changes in the coastline that occurred in Palu Bay, Palu City, Central Sulawesi as a result of the Tsunami. The data used in this study are Sentinel 1 satellite imagery before and after the Tsunami occurred. The coastline at each time is obtained from the extraction of Sentinel 1 satellite imagery. Analysis of shoreline change uses quantitative descriptive techniques with the help of the DSAS tool with change analysis based on the Net Shoreline Movement (NSM) method which is integrated with ArcGIS software. The results show that there has been a significant change in the coastline in Palu Bay, Palu City, Central Sulawesi. Coastline changes that occur are in the form of abrasion and accretion conditions, but are more dominated by abrasion. The highest abrasion of -167.53m is found on transect 309 which is located in the District of Mantikulore, and the lowest abrasion value of -0.43m is found on transect 242 which is located in the Ulujadi District. Meanwhile, the highest accretion value of 47.27m is found on transect 105 which is located in the West Palu District, and the lowest abrasion value of 0.56m is found on transect 68 which is also located in the West Palu District. The magnitude of the change in coastline that occurred in Palu Bay, Palu City, Central Sulawesi after the Tsunami was influenced by the openness of the coastal area to wave blows, the oval and narrow morphology of Palu Bay and the occurrence of ground deformation in the Palu-Koro Fault.

Selection Area of Wastewater Management System Priority (Study On Sinjai District) Dirman, Eris Nur; Sholihah, Qomariyatus; Semedi, Bambang; Solimun, Solimun; Harahab, Nuddin; Rachmansyah, Arief
Jurnal Pembangunan dan Alam Lestari Vol. 13 No. 2 (2022): Jurnal Pembangunan dan Alam Lestari
Publisher : Postgraduate School of Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2022.013.02.06

The SDGs target to ensure availability and sustainable management of water and sanitation for all is related to the government's commitment through medium term development plan (RPJMN) 2020-2024, which target of 90% improved sanitation, 15% safely managed and 0% open defecation (OD). The gap between the RPJMN target and wastewater conditions in 2020 is an important problem in Sinjai district. This study aims to achieve a priority area for domestic wastewater management in Sinjai district by analyzing population density and gap analysis between wastewater conditions in 2020 and the RPJMN target gradually. Analysis data of wastewater condition and the target shows the gaps to be closed by government. The results of the analysis show that in Sinjai district there is open defecation gap of 3.68 %, improved wastewater facilities gap of 7.59%, and safely managed wastewater facilities gap of 14.15%. The selection area of domestic wastewater management system priority from the gap analysis is Pulau Sembilan sub-district with a density of 157.52 people/ha, an open defecation gap of 29.51%, improved wastewater facilities gap of 24,11%, safely managed wastewater facilities gap of 15.00%. The wastewater treatment system option based on this analysis result is Centralized Wastewater Treatment System (CWTS). Keywords: wastewater, management, sanitation, open defecation, improved, safely managed

Study of Coral Reef Distribution in Pejarakan Waters, Bali Using Sentinel-2A Imagery Semedi, Bambang; Rijal, Seftiawan Samsu; Arviani, Dhika Anggi
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

The existence of coral reef ecosystems in Indonesia is a potential marine resource that needs to be preserved due to the many benefits of the coral reef ecosystem. Utilization of Sentinel-2A imagery for coral reef mapping can be done using two approaches, namely pixel-based and object-based. In this study, pixel-based classification and object-based classification are used to determine the dynamics of the distribution of coral reefs in the waters of Pejarakan Village, Bali, during the dry and rainy seasons. The data used are Sentinel-2A image data for 2018, 2020, and 2022 and field data used for the research accuracy test process. Field data was collected using the purposive sampling method, and the accuracy test process was carried out using the confusion matrix method. The data processing results using pixel and object classification show that classification using the object classification method is considered more accurate than pixel classification because it produces an accuracy value of up to 69.4%. Meanwhile, the pixel classification accuracy value is only 61.1%.

Pengaruh Suhu Permukaan Laut dan Klorofil-A terhadap Kelimpahan Ikan Lemadang (Coryphaena Hippurus) di Perairan Selatan Jawa: The Influence of Sea Surface Temperature and Chlorophyll-A on the Abundance of Dolphinfish (Coryphaena Hippurus) in the Southern Java Waters Mandhalika, Vianta; Semedi, Bambang; Sambah, Abu Bakar; Leksono, Amin Setyo
JFMR (Journal of Fisheries and Marine Research) Vol. 9 No. 1 (2025): JFMR on March
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.2025.009.01.4

Hubungan antara kondisi oseanografi dan kelimpahan ikan lemadang (Coryphaena hippurus) di Perairan Selatan Jawa merupakan aspek penting dalam memahami dinamika habitat dan pengelolaan perikanan berkelanjutan. Penelitian ini bertujuan untuk menganalisis pengaruh suhu permukaan laut (SPL) dan konsentrasi klorofil-a terhadap kelimpahan ikan lemadang di wilayah tersebut. Studi ini didasarkan pada analisis data penangkapan ikan selama periode 2019-2023 dan dinamika parameter lingkungan di Perairan Selatan Jawa. Observasi SPL dan klorofil-a dilakukan melalui teknologi penginderaan jauh. GAM dipilih untuk mengidentifikasi ambang batas dari masing-masing parameter dan hubungan empirisnya dengan CPUE ikan lemadang. Hasil penelitian menunjukkan bahwa SPL dan klorofil-a memiliki pengaruh yang signifikan terhadap kelimpahan ikan lemadang. Kisaran optimal SPL dan klorofil-a untuk ikan lemadang masing-masing adalah 25,5-30,57° C dan 0,04-1,33 mg/m3. Dengan demikian, temuan ini dapat memberikan wawasan mengenai preferensi habitat ikan lemadang di Perairan Selatan Jawa. The relationship between oceanographic conditions and the abundance of dolphinfish (Coryphaena hippurus) in the Southern Java Waters is essential in understanding habitat dynamics and sustainable fisheries management. This study aims to analyze the effects of sea surface temperature (SST) and chlorophyll-a concentration on the abundance of dolphinfish in the region. The study is based on the analysis of fish catch data from 2019 to 2023 and the dynamics of environmental parameters in the Southern Java Waters. SST and chlorophyll-a observations were conducted using remote sensing technology. The generalized additive model (GAM) was chosen to identify the thresholds of each parameter and their empirical relationship with the dolphinfish CPUE. The results show that SST and chlorophyll-a significantly influence dolphinfish abundance. The optimal ranges for SST and chlorophyll-a for dolphinfish are 25.5–30.57 °C and 0.04–1.33 mg/m³, respectively. These findings provide valuable insights into the habitat preferences of dolphinfish in the Southern Java Waters.

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