scholarly journals Isolation Hope and Threat of Mangrove Restoration Program in Bogowonto Lagoon, Yogyakarta - Indonesia (2002-2014)

2017 ◽  
Vol 3 (4) ◽  
pp. 1
Author(s):  
Abdullah Firaswan ◽  
Rindra Aryandari ◽  
Akbar Reza ◽  
Nur Faizah ◽  
Nur Rachman ◽  
...  

<p class="Els-Abstract-text">Bogowonto Lagoon  has  the  largest  mangrove ecosystem in  southern coast  of  Yogyakarta, Indonesia. Several activities on mangrove restoration have been conducted to escalate this remnant mangrove forest area. Conversely, rapid increase of shrimp pond area become threat for mangrove ecosystem in Bogowonto lagoon since the early of 21<sup>st</sup> century. Hence, This study is aimed to investigate mangrove composition, distribution and abundance, progress of mangrove restoration program and shrimp pond extensification in 2002 to 2014. Conducted from April 2015 to May 2015, this research consists of several steps namely survey, vegetation analysis, literature study, sociological study using questionnaire, measurement of mangrove and shrimp pond area using Landsat 8 imageries and Arc GIS 10.1. We determined 15 sites along Bogowonto Lagoon using random sampling by quadratic plot (10 m × 10 m for tree, 5 m ×5  m for sapling) and total counts (for seedling). The result showed that there were seven species of mangrove and six species of associate mangrove. <em>Rhizopora mucronata</em> Lamb. was dominant in each growthform with clumped distribution. <em>R. mucronata</em> and <em>Avicennia marina</em> (<a title="Forssk." href="https://en.wikipedia.org/wiki/Forssk.">Forssk.</a>) <a title="Vierh." href="https://en.wikipedia.org/wiki/Vierh.">Vierh.</a> also dominate from backswamp to rivermouth. Satellite imageries revealed that there was a hope due to upward trends of mangrove area in last 12 yr (approximately 5 ha). However, the significant increase sof shrimp pond area (approximately 34 ha) surrounding mangrove area become current and future threat. Based on sociological study, most of people around Bogowonto Lagoon have high awareness, but less participated on mangrove restoration program. Besides, the river mouth covered by sand become another obstacle of it.</p><div><p class="Els-keywords"><em> </em></p><p class="Els-keywords"><em>Keywords:</em> Bogowonto lagoon, mangrove restoration, shrimp pond, vegetation analysis</p></div>

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 98 ◽  
Author(s):  
Defri Yona ◽  
Syarifah Hikmah Julinda Sari ◽  
Feni Iranawati ◽  
Syamsul Bachri ◽  
Wulan Cahya Ayuningtyas

Background: This study aimed to investigate the abundance of microplastics in the eastern water of Java Sea. The study areas are well known for the high population and high industrial activities that can contribute to the plastic pollution. Methods: Microplastics were sampled from the surface sediments at five different stations representing different local activities: fish landing area (St 1), mangrove forest (St 2), abandoned shrimp pond (St 3), river mouth (St 4) and open sea (St 5). Results: Three types of microplastics were found; the most common was plastic fragments (54.34±6.39%) followed by fibers (41.45±4.59%) and films (4.21±3.90%). The highest abundance of microplastics was observed in the mangrove area (896.96±160.28 particles/kg), dominated with fragments and fibers. Films were found in greatest quantities in the fish landing area, but compared to the other types of microplastics, the abundance was much lower (80.73±37.62 particles/kg). Domestic wastes and fisheries activities were the main causes of the high microplastics in the study areas. Conclusions: The results of this study showed that microplastic pollution is a serious problem that needs to be paid attention not only from the government but also from the local people. Plastics management waste is needed.


Author(s):  
Endang Hilmi ◽  
Lilik Kartika Sari ◽  
Arif Mahdiana ◽  
Sesilia Rani Samudra

The Segara Ankan Lagoon (SAL) has a potentially reduced mangrove ecosystem.  In this year, the mangrove area in SAL is predicted only remaining 1788 ha.   The degradation of The Segara Ankan Lagoon (SAL) has a potentially reduced mangrove ecosystem.  In this year, the mangrove area in SAL is predicted only remaining 1788 ha.   The degradation of mangrove ecosystem often occurres in SAL, especially in Eastern of Segara Anakan Lagoon Cilacap (E-SAL). To reduce mangrove degradation need activities to review their status and recovery activities.  This research aims  to analysis the activities to support the effort of mangrove rehabilitation. The results of this researchd showed that (1) The potential of mangrove ecosystem in E-SAL  was seedling between 15.000 – 34.999 trees ha-1, sapling between 5.199-9.065 trees ha-1 and trees between 533 – 1366 trees ha-1, (2) The status  of mangrove ecosystem in E-SAL was damaged – very damaged. (3) the model spesices selection of rehabilitation pattern to reduce mangrove degradation   were  Rhizophora apiculata, Rhizophora mucronata, Aegiceras corniculatum, Sonneratia alba, Avicennia marina, and Bruguiera gymnorrhiza


DEPIK ◽  
2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Nebuchadnezzar Akbar ◽  
Abdurrachman Baksir ◽  
Irmalita Tahir

<p><strong><em>Abstract. </em></strong><em>Mangroves is important ecosystem in coastal. </em><em>However, multiple  destructive activities to cause reduced mangrove area. The information about area and criteria of mangrove in Sidangoli coastal area, had been doing, however information ecology mangrove unexplored. This information is required to plan better conservation strategy of mangrove. The study was conducted to infer the ecology of mangrove in the Sidangoli coastal of west halmahera regency, North Mollucas. A total of location diveded by four and </em><em>perform in November 2014. Mangrove sampling, done by the "spot check".</em> <em>The results showed that mangrove of </em><em>thickness ranging from 145-750 meters and founded 11 </em><em>specieses from 5 families of mangroves. The ecology analysis showed that </em><em>frequency and density of mangrove founded station three. </em><em>Whereas </em><em>persent cover contained station four and value sicnificant analysis in all station. The mangrove vegetation analysis contained the high frequency, density and value sicnificant is </em><em>Rhizopora stylosa</em><em> and high persent cover Sonneratia alba.the overall observation of mangrove explaided that mangrove ecosystem enter in low/damage criteria.</em></p><p><strong><em>Keywords</em></strong><strong><em>:</em></strong><em>  </em><em>Mangroves;</em><em>  </em><em>Rhizopora stylosa</em><em>; spot check</em><em>;</em><em> Sonneratia alba</em><em></em></p><p align="left"> </p><strong>Abstrak. </strong>Mangrove merupakan ekosistem penting di kawasan pesisir. Tetapi, berbagai macam aktivitas yang bersifat destruktif telah menurunkan luas penyebaran lahan mangrove. Informasi tentang luas dan kriteria mangrove di kawasan pesisir Sidangoli, Kabupaten Halmahera Barat telah dilakukan. Akan tetapi informasi tentang nilai ekologi mangrove belum dilaporkan, sehingga perlu adanya kajian tentang anailsis ekologi mangrove. Informasi nilai ekologi dapat dijadikan sebagai data untuk dijadikan sebagi acuan dalam merencanakan strategi konservasi. Penelitian ini bertujuan untuk mengetahui nilai ekologi mangrove dikawasan pesisir Sidangoli Kabupaten Halmahera Barat, Maluku Utara. Lokasi penelitian dibagi menjadi empat dan penelitian dilaksanakan pada November 2014. Pengambilan contoh mangrove, di lakukan dengan menggunakan metode <em>“spot chek”</em><em>. </em>Hasil penelitian menunjukkan ketebalan mangrove berkisar 145-750 meter dan diperoleh sebanyak 11 jenis dari 5 famili mangrove. Analisis ekologi memperlihatkan bahwa nilai total kerapatan dan frekuensi tertinggi ditemukan pada stasiun  tiga. Sedangkan tutupan tertinggi pada stasiun empat serta nilai penting pada setiap stasiun adalah 300. Analisis vegetasi mangrove disetiap stasiun diperoleh kerapatan, frekuensi dan nilai penting jenis tertinggi adalah <em>Rhizopora stylosa</em> serta tutupan jenis tertinggi adalah <em>Sonneratia alba</em>. Total pangamatan jenis mangrove dan jumlah yang tersedia, menggambarkan kondisi ekosistem mangrove di pesisir Sidangoli masuk dalam kategori rendah/rusak.


Author(s):  
Muhammad Ardiansyah ◽  
Danial Danial ◽  
Muhammad Jamal Alwi

Strategy For Development of Untia Archipelago Fishing Area Based on Ecotourism In The City of Makassar This research was conducted from August 5, 2019 to September 5, 2019, aimed at identifying the potential of ecotourism in the Untia VAT Area mangrove ecosystem, analyzing the suitability of the Untia VAT Area mangrove ecotourism, and determining the strategy of developing mangrove ecotourism in the Untia VAT Area. Data collection was carried out through field surveys and interviews using questionnaires. Data analysis uses area suitability analysis for coastal tourism, mangrove tourism category and SWOT analysis. The results of this study indicate that the potential for ecotourism in the mangrove ecosystem Untia VAT Area is a mangrove area included in the appropriate category to be used as an ecotourism area. The strategy of developing mangrove ecotourism in the Untia PPN Region is to increase human resources (HR), planting abrasion-resistant mangrove species in a sustainable manner, procurement of facilities and infrastructure to support tourism activities, and good cooperation among policy makers.


2018 ◽  
Vol 9 (2) ◽  
pp. 499-506
Author(s):  
Septinus Mendrofa ◽  
Rahmat Kurnia ◽  
Niken T.M. Pratiwi

One of the resources that has potential to utilization is a mangrove ecosystem. The aim of this study was to analyze the changes in the area of mangroves, analyze the causes of destruction of mangroves, and formulate strategies for sustainability management of mangroves in Sawo District. The changes in the area of mangroves was identified from  imagery and analyzed by ArcGis 10.2.2. The causes of mangrove destruction was analyzed from the data collected from the stakeholders in Sawo District that related to management of mangroves in district level, regency level, and province. The data was analyzed by Analytical Hierarchy Process (AHP) to formulate the strategies for sustainability management of mangroves. The result of landsat imagery showed that, mangrove area has decreased about 17,405 ha within a decade. Mangrove destruction was caused by human activities, such as logging and conversion of mangrove land into agriculture. The main strategy for sustainability management of mangroves was community’s empowerment, then followed by others alternatives. Keywords: AHP, coastal, destruction, ecosystem, landsat


2021 ◽  
Vol 9 (1) ◽  
pp. 3093-3105
Author(s):  
Westi Utami ◽  
Yuli Ardianto Wibowo ◽  
Ahmad Haris Hadi ◽  
Fajar Buyung Permadi

Expansion of industrial areas, aquaculture, settlements, and limited knowledge of the community about the function of mangroves allegedly led to the conversion of mangrove functions in the early 1990s. This study aimed to map the condition of mangroves from 1988, 1990, 1995, 2008, to 2021 and their effect on the widespread of tidal flooding in three villages (Mangkang Kulon, Mangunharjo, Mangkang Wetan) in Tugu subdistrict, Semarang City. The research method was carried out by using spatiotemporal analysis of Landsat 5 and Landsat 8 imagery through the supervised approach (Maximum Likelihood algorithm). In order to map the correlation of mangrove damage with the widespread impact of tidal flooding, an overlay analysis of land use maps was carried out in 1988, 1990, 1995, 2008 and 2021. The results of the study showed that mangrove damage is correlated with the widespread of tidal flooding that drowns settlements, ponds, and agricultural land. Data analysis showed that the mangrove area in three villages has decreased from 1988 to 2021, covering an area of 242.66 ha. This condition is one of the triggers for the increase in tidal flooding area from 1988 to 2021, covering an area of 253.135 ha. As a natural barrier to prevent abrasion and tidal flooding, mangrove conservation is very necessary, considering the impact of tidal flooding on the coast of Semarang City is increasingly widespread.


Life Science ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 1-9
Author(s):  
Rafdinal Rafdinal ◽  
Rizalinda Rizalinda ◽  
Sukal Minsas

This study aims to analyze the distribution pattern of aboveground biomass (AGB) in the mangrove ecosystem of West Kalimantan Safety. In addition, it also analyzes the differences in biomass and carbon stocks in the condition of mangrove forests. The study of the distribution pattern of AGB of mangrove forests was carried out between August and September 2018. Determination of the location of the study was based on a conceptual approach in the dimensions of spatial temporal that is using the Porposive Random Sampling method. Vegetation analysis was carried out by a single plot measuring 50 m x 50 m at each selected location. Based on vegetation analysis data it was found that the density of mangrove stands on the Peniti coast ranged from 38 to 185 ind /ha, with an average of 88.25 ± 66.15 ind./ Ha. The AGB of pinch mangrove forests ranged from 8.85 to 84.82 Mg / ha with the largest total AGB distributed in the stand diameter class of more than 80 cm.   Penelitian ini bertujuan untuk menganalisis pola distribusi aboveground biomass (AGB) pada ekosistem mangrove Peniti Kalimantan Barat. Selain itu juga untuk menganalisis perbedaan biomassa, dan cadangan karbon pada kondisi hutan mangrove. Kajian pola distribusi AGB hutan mangrove Peniti dilakukan antara bulan Agustus dan September 2018. Penentuan lokasi penelitian didasarkan pada pendekatan konseptual dalam dimensi spasio temporal yaitu menggunakan metode Porposive Random Sampling. Analisis vegetasi dilakukan dengan metode petak tunggal berukuran 50 m x 50 m pada setiap lokasi terpilih. Berdasarkan data analisis vegetasi didapatkan bahwa kerapatan tegakan mangrove di pesisir Peniti berkisar antara 38 sampai 185 ind/ha, dengan rata-rata 88,25±66,15 ind./ha. AGB tegakan hutan mangrove Peniti berkisar antara 8,85 sampai 84,82 Mg/ha dengan total AGB terbesar terdistribusi pada kelas diameter tegakan lebih dari 80 cm.


2020 ◽  
Vol 21 (8) ◽  
Author(s):  
AARON FROILAN RAGANAS ◽  
ANNALEE S. HADSALL ◽  
NELSON M. PAMPOLINA ◽  
STEFAN HOTES ◽  
DAMASA B. MAGCALE-MACANDOG

Abstract. Raganas AFM, Hadsall AS, Pampolina NM, Hotes S, Magcale-Macandog DB. 2020. Regeneration capacity and threats to mangrove areas on the southern coast of Oriental Mindoro, Philippines: Implications to mangrove ecosystem rehabilitation. Biodiversitas 21: 3625-3636. Regeneration capacity is important as it determines the fate of an ecosystem. This study assessed six mangrove areas in the southern coast of Oriental Mindoro, Philippines to evaluate their regeneration capacity status. Four mangrove ecotypes were delineated namely seaward, middle, landward and riverine zones at each mangrove ecosystem, where dominant mangrove species were identified and selected for regeneration capacity study. Three subplots measuring 1 x 1 m2 were laid within the five 10 x 10 m2 survey plots established per zone. The juveniles were counted and categorized according to their height classes, using linear regeneration sampling method; where: RCI (≤40 cm) considered seedlings; RCII (41-150 cm) as saplings; and RCIII (151-≤300 cm) as small trees. Potential threats both anthropogenic and natural were determined through key informant interviews. Seven dominant species were identified across ecotypes in all mangrove sites, namely Avicennia marina, Avicennia rumphiana, Ceriops decandra, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Xylocarpus granatum. RCI (seedlings) is the most abundant across mangrove sites irrespective of the dominant species. Fishpond operation within the mangrove stand is considered a major threat to the juveniles and most mangrove ecosystems. Therefore, protection and constant monitoring of these mangrove ecosystems are necessary to ensure regeneration success in the future.


Author(s):  
Fitri Andriyani

Binuangeun Mangrove Ecosystem is located in the south western Java Island, in the area of ​​Lebak Regency, Banten Province. Mangrove ecosystems are ecosystems that located at the Coastal areas which are a habitat for a variety of marine animals which are associated with it, mostly fish, because of its complex or a very effective root structure which can provide a place for fish to be able to live, take shelter, develop, breed and also look for food. This research was conducted to determine the physical and chemical condition and the variety of fishes which found in the Binuangeu, Banten Mangrove Ecosystem. This research method uses literature study. Physical and chemical conditions of the Binuangeun Mangrove Ecosystem, Banten have degrees of temperature ranging from 28.20 - 32.20; acidity range between 7.00 - 8.09; turbidity ranges from 22.50 - 76.00 NTU; water current ranged from 0.079 to 0.189; phosphate content ranges from 0.02 - 0.008; salinity ranges from 30-35 PSU; and dissolved oxygen content ranges from 5.67 - 8.70. The types of fish found in the Binuangeun Mangrove Ecosystem, Banten are 45 species from 22 Family. The most abundant and relatively high species of existence is the Gobiidae with 10 species.   Keywords: Banten, Binuangeun, Ecosystems, Fish, Mangroves


2019 ◽  
Vol 9 (2) ◽  
pp. 16-22
Author(s):  
Nadya Fiqi Nurcahyani

Mangrove forests have high ecological, economic and social values ??which function to maintain shoreline stability, protect beaches and riverbanks, filter and remediate waste, and to withstand floods and waves. The facts show that mangrove damage is everywhere, even the intensity of damage and its area tends to increase significantly. Many roles of mangroves require proper management to maintain the existence of mangroves. One way to determine the area of ??mangroves is by processing Landsat 8 satellite imagery. The stages of mangrove identification are carried out by using 564 RGB band merger, then separating the mangrove and non-mangrove objects. Next step is to analyze the density of mangroves using NDVI formula. To maximize monitoring of mangrove area, an android application was created that provides information on the area and density of mangroves at several locations, namely Clungup, Bangsong Teluk Asmara and Cengkrong from 2015 to 2018.The results showed that Landsat 8 satellite imagery can be used to identify changes in the area of ??mangrove forests with good accuracy, namely in the Clungup area of ??90% and Cengkrong of 86.67%. From processing results, the mangrove area in the Clungup area has also decreased from 2015 to 2017 but has increased in 2018 so that the application provides recommendations for embroidering mangroves in 2016 to 2017 and mangrove recommendations are maintained in 2018. As for Bangsong Teluk area Asmara and Cengkrong have increased the area of ??mangroves every year so that the application provides recommendations to be maintained from 2016 to 2018.


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