Coastal degradation can be observed as destruction of mangrove area. The impact of mangrove destruction is evidenced by a significantly eroded area. Further impacts included lessened biodiversity, especially in the mangrove ecosystem. This study aimed to determine the impact of coastal damage to the mangrove ecosystem in Karawang coastal areas. The mangrove degradation was identified from changes in mangrove covered area by utilizing data from several Landsat TM satellite imagery and ground check equipped with GPS and Google Earth applications. Data from the inventory of mangrove area issued by the Perhutani of KPH Purwakarta 2017 were also used as supplement in determining the extent of destruction. From satellite imagery, the mangrove area in 2017 was 258 hectares. This area was only approximately 3% of the total area of mangrove protected areas assigned by the Regency Spatial Plan. Compared to the condition in 2009, the coastal destruction was significant. The worst mangrove degradation occurred in the sub-districts of Cibuaya, Tempuran, and Cilamaya Wetan. The coastal communities were aware of the problem. They understood that this problem was caused by coastal abrasion and land use change, wild catch, milkfish and shrimp aquaculture, salt ponds, rice farms, and tourism.
Raja Ampat Regency in West Papua Province, Republic of Indonesia has abundant natural fishery resources. Marine Protected Area (MPA) has been established in marine areas of Raja Ampat Regency. To manage MPA better, measureable parameters and clear indicators are required. The decision on the indicators can be conducted by bioeconomic model approach. The results of research show that the establishment of MPA will increase harvest level and revenue. But “bigger is better” could not be adopted for the development of MPA. The optimal MPA size will contribute to increasing yields and revenue and can reduce the level of effort.
Pongok Island has the potential of coastal ecosystems, namely mangrove, seagrass, and coral reef. Recently, increasing use of bombs and potassium in fishing can be destructive hence the ecosystems need to be conserved in order to be utilized sustainably. The management in question is the establishment of a conservation area that involves fishing communities so that an assessment of the community’s perception of the determination of conservation areas is needed. This study aims to determine the perception of fishing communities towards the establishment of conservation areas in Pongok Island, South Bangka Regency, Bangka Belitung Province, Republic of Indonesia. The selection of respondents was done by using purposive sampling. Data analysis used is descriptive analysis to explain the perception of the fishing community towards the determination of conservation areas. The results of the study show that public perception is quite good because the highest percentage of assessment level is found in the assessment criteria of agree and strongly agree. The community perception on establisment of concervation areas is a high with the level of strongly agree criteria of 34.418% and 55.105% agree criteria and low rating on appraisal criteria are sufficient to agree at 8.827% and disagree at 1.650%.
This research is a case study on the coast of Karawang Regency, West Java Province, which is part of the North Coast of Java. In the coastal area of Karawang, it was previously planned to build a port, but it was canceled and shifted to another regency. How is the condition of the Karawang coast? Has it undergone physical changes and is it risky if a port is built, and do it need some coastal protection strutures to protect it from damage? What kind of coastal structures are suitable to protect the coast of Karawang? These question are at the same time a problem that will be raised in this study. The objectives of this research are: (1) to plan a coastal protection structure for the coast of Karawang; (2) to determine the type and structure of coastal protection structures that are suitable for the Karawang coast. Research data in the form of primary and secondary data, with primary data covering topography, bathymetry, tides, currents, obtained by validation through Ground Check Points (GCP), and secondary data covering wind, and socioeconomic. Analysis of the data through simulation and determination of the selected coastal structures, with the result that the appropriate coastal protection structures are breakwaters and groynes, because they can reduce the overflow of waves that occur, so that the coast is protected from the onslaught of damaging waves.
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