scholarly journals PLANTING OF RHIZOPORA TYPES IN MANGROVE FORESTS PERCUT SEI TUAN NORTH SUMATERA

2018 ◽  
Vol 3 (1) ◽  
pp. 43-47
Author(s):  
Ridahati Rambey ◽  
Delvian ◽  
Deni Elfiati
Keyword(s):  
Tree Species ◽  
Mangrove Forest ◽  
East Coast ◽  
Avicennia Marina ◽  
Mangrove Forests ◽  
Vegetation Community ◽  
Local Species ◽  
Illegal Activities ◽  
North Sumatra ◽  
Beach Vegetation

Mangrove forest is a tropical beach vegetation community dominated by several tree species that can grow and develop in tidal and muddy beaches. Some mangrove areas recently have been damaged due to illegal activities carried out by various parties, one of which is the East Coast of Sumatra in the Sub District Percut Sei Tuan, Deli Serdang District, Province of North Sumatra. The purpose of the activities is to focus on replanting mangrove lands that have been damaged by local species. The growned in Tanjung Rejo Village Percut Sei Tuan buds are like Rhizopora stylosa, Rhizopora apiculata and Avicennia marina type. Percentage of growing plants were R. stylosa (92.37%), R. apiculata (90%), mixed propagules of R. stylosa and R. apiculata (90%) and A. marina (56%) respectively. Overall the rehabilitation of mangrove forest is categorized as successful, but only one species of the smallest growing with percentage is A. marina (56%) this is because the location of  planting is adjacent to the sea where the plants can not stand the tidal currents.

scholarly journals Impacts of urbanization on mangrove forests and brachyuran crabs in Penang, Malaysia

2021 ◽  
Vol 21 (3) ◽  
Author(s):  
Johann Stiepani ◽  
Lucy Gwen Gillis ◽  
Su Yin Chee ◽  
Martin Pfeiffer ◽  
Inga Nordhaus
Keyword(s):  
Mangrove Forest ◽  
East Coast ◽  
Avicennia Marina ◽  
Mangrove Forests ◽  
Crab Species ◽  
The West ◽  
Mangrove Tree ◽  
Decision Making Processes ◽  
Rural Sites ◽  
Species Importance

AbstractUrban development is driving the loss and subsequent fragmentation of mangrove forests in Penang, Malaysia. However, little research has focused on the implications of urbanization onto the biodiversity within mangrove forests. This study investigates and compares both vegetation and crab assemblages between urban and rural mangrove forests. Collectively, 5853 trees were recorded including 15 species from six families: Acanthaceae, Arecaceae, Lythraceae, Malvaceae, Meliaceae, and Rhizophoraceae. Avicennia marina accounted for 88.6% of all trees in the study and held the highest species importance (IV). Although the total number of mangrove tree species varied significantly between urban (14) and rural (7) mangrove forests, the mangrove forest structure based on IV did not vary significantly. In total, 633 crabs were recorded comprising 13 different species from three superfamilies: Grapsoidea, Ocypodoidea, and Paguroidea. Crab species richness did not vary between urban and rural sites, but the biomasses of five and the densities of four crab species varied significantly. Redundancy analysis (RDA) indicated that land use, salinity, and abundance of Avicennia officinalis can best describe the distribution of crab species (r2 =32.7). This study indicates that smaller fragmented urban mangroves at the east coast of Penang have a relatively high tree and crab diversity and are worth protecting, in addition to the larger mangrove forests on the west coast. The preservation of small yet interconnected mangrove sites could be critical to the recruitment of their flora and fauna and should be considered in decision-making processes.

scholarly journals KEANEKARAGAMAN JENIS MANGROVE DI DESA MENDALOK KECAMATAN SUNGAI KUNYIT KABUPATEN MEMPAWAH

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Syahrul Muharamsyah ◽  
M Sofwan Anwari ◽  
Hafiz Ardian
Keyword(s):  
Mangrove Forest ◽  
Avicennia Marina ◽  
Raw Material ◽  
Mangrove Forests ◽  
Bruguiera Gymnorrhiza ◽  
Mangrove Species ◽  
Rhizophora Stylosa ◽  
Sonneratia Caseolaris ◽  
Rhizophora Apiculata ◽  
Bruguiera Cylindrica

Mangrove forests are unique ecosystems that have ecological, biological and socio-economic functions. The function of mangrove forests on the environment is very important especially in the coastal and oceanic regions. Mangrove forests providers of wood, leaves as raw material for medicines, and natural dye. This study aims to inventory the diversity of species of mangrove vegetation in Mendalok Village, Sungai Kunyit Subdistrict, Mempawah Regency. The benefits of this study are to provide the data on mangrove forest vegetation as basic data for local government and related agencies in efforts to protect and preserve mangrove forests in Mendalok Village, Sungai Kunyit Subdistrict, Mempawah Regency. Inventory the tree in mangrove forest used a line with measured 200 meters. There are 6 lines and the distance between the lines as far as 100 meters. The lines of observation are placed by purposive sampling. The results of research found 11 types of species and consisted of 6 genera. The genera are Avicennia, Bruguiera, Ceriops, Rhizophora, Soneratia and Xylocarpus. The species found were Avicennia alba, Avicennia marina, Bruguiera cylindrica, Bruguiera gymnorrhiza, Bruguiera parviflora, Ceriops decandra, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa, Sonneratia caseolaris, Xylocarpus mollucensis. Diversity of mangrove species in Mendalok Village, Sungai Kunyit Subdistrict, Mempawah Regency was high and should be maintained for conservation and ecotourism area. Keywords : conservation, ecotourism, mangrove, Mendalok Village

scholarly journals Keragaman Kondisi Salinitas Pada Lingkungan Tempat Tumbuh Mangrove di Teluk Kupang,NTT

2019 ◽  
Vol 17 (3) ◽  
pp. 425
Author(s):  
Jeriels - Matatula
Keyword(s):  
Mangrove Forest ◽  
Interpolation Method ◽  
Systematic Sampling ◽  
Mangrove Forests ◽  
Transect Line ◽  
Straight Line ◽  
Measurement Results ◽  
The Government ◽  
Systematic Sampling Method ◽  
North Sumatra

Mangrove forest ecosystems are  habitat of various types of microorganisms, but now, problems of mangrove forests experience are in quality and wealth. Efforts to rehabilitate activities  mangrove forests againts had been carried out but the results shown had not been maximized, so it is need the correct strategies  to achieve the success for rehabilitation activities. The studied was conducted in Teluk Kupang, East Nusa Tenggara, covered coastal areas of Kupang's mangrove forests and coastal mangrove forests in Kupang district. The method used in this studied was a systematic sampling method that was systematically distributed across all the mangrove forest areas. The method used for salinity measurement was  method of transmission and Transect Line Plots. Measurements was made in straight line and the size of the plot is 10 m x 10 m, the distanced between lines was 50 meters so that  total lane is 547 with the number of plots of observation 1641 plots. The value of  measurement results was made into the spread of salinity used the interpolation method. The condition of the crossed of  mangrove forest located on  coastal panoramas of  Kupang city shows a salinity value of 10,26 - 26.33%, while  salinity conditions was on the coast of  Kupang ten district 10-42.33 ‰. The salinity condition was formulation of the environmental conditions  mangrove forest on  coast of the island as well as attempts to support  management of mangrove forest activities. The distribution of different mangrove forest conditions along the coastal zone of North Sumatra shows an environmental condition that supports mangrove growth even though in some places the salinity values are high. Results of this study of salinity conditions is a study of the environment of mangrove growth so that it can provide an overview for the government in conducting various activities to rehabilitate mangrove forests.   

scholarly journals Partisipasi Kelompok Masyarakat Dalam Pelestarian Hutan Mangrove Di Desa Margasari Kecamatan Labuhan Maringgai Kabupaten Lampung Timur

2015 ◽  
Vol 3 (2) ◽  
pp. 21
Author(s):  
Askasifi Eka Cesario ◽  
Slamet Budi Yuwono ◽  
Rommy Qurniati
Keyword(s):  
Environmental Education ◽  
Mangrove Forest ◽  
East Coast ◽  
Forest Community ◽  
Mangrove Forests ◽  
Fish Processing ◽  
Community Group ◽  
Community Groups ◽  
Processing Group ◽  
Mangrove Conservation

The damage of mangrove forests as a green belt in the east coast of Lampung was very concerning.  This research was conducted on April 2014 in Margasari village Labuan Maringgai District of East Lampung regency. The participation of villagers community that included Margajaya Utama community, Margajaya Satu community, Environmental Education (PLH), Shrimp Paste (terasi) processing group, Farmers group, Fishermen group, and fish processing group give impacts of mangrove conservation.  The purpose of this research were to determine the type of institutional participatory and the level of participation society groups of mangrove forests conservation.  The method used descriptive quantitative by administering a score in each category answers and descriptive qualitative to present the type of participatory institutional which has definition as participation of each institution member to develop a better institution. Result of the research found that the level of participation of the community in mangrove forests conservation had been very good and Margajaya community was the best one which has mobilisasi swakarsa as type of participatory institutional. Based on the results of the research, it can be concluded that the type of participatory institutional consists of passive participation in the group of farmers, fish processing group, shrimp paste processing (terasi) group and fishermen groups, participation in consultative is community of environmental education and mobilization swakarsa of participation, consists the group of margajaya. The level of participation of community groups in the preservation of mangrove forests on the highest category is 73,68% that is supported by the margajaya group and community of environmental education, then medium category is 19,74% that included farmers group, fish processing group, and fishermen group, then 6,58% of low category is farmers group and shrimp paste (terasi) processing group. Key words: Mangrove forest, community group society, conservation

scholarly journals Community mapping and vegetational analysis of the mangrove forest in Calabanga, San Miguel Bay, Philippines

2020 ◽  
Vol 147 ◽  
pp. 02017
Author(s):  
Agnes Zafe Faustino ◽  
Helen Lonsamia Madela ◽  
Richard Gavina Castor ◽  
Alvin Paredes Muroda ◽  
Marian Nena Parato Chavez
Keyword(s):  
Mangrove Forest ◽  
Forest Cover ◽  
Environmental Parameters ◽  
Management Plan ◽  
Mangrove Forests ◽  
Mangrove Species ◽  
Rhizophora Apiculata ◽  
Illegal Activities ◽  
Laws And Policies ◽  
Philippine Government

Mangrove forests in Philippines have been noted for years to be continuously dwindling in terms of forest cover and diversity. The reasons behind these unfortunate events are the unabated illegal activities in the mangroves albeit the enforcement of laws and policies pertaining to its conservation and rehabilitation. For several decades, the Philippine government had been implementing programs and projects aiming to bring back the once pristine and productive mangrove areas through reforestation of denuded areas in the country. However, assessment is needed to evaluate whether these efforts have positively impacted coastal areas. This paper presents the current vegetational condition of selected reforested mangrove areas in Calabanga, San Miguel Bay, Philippines. Fifty-six (56) quadrats measuring 10x10m were established strategically in four (4) randomly selected rehabilitated mangrove sites. The overall results show that ten (10) mangrove species were recorded and Rhizophora apiculata and Rhizophora mucronata got the highest importance values of 111.59 and 105.96 respectively. This only shows that mono-specific mangrove species were considered during the rehabilitation of the areas set aside the environmental parameters affecting survival rate and the ecological diversity of the mangrove forest. A framework was developed to guide the local government in developing their sustainable mangrove management plan.

scholarly journals Keragaman Kondisi Salinitas Pada Lingkungan Tempat Tumbuh Mangrove di Teluk Kupang,NTT

2019 ◽  
Vol 17 (3) ◽  
pp. 425
Author(s):  
Jeriels - Matatula
Keyword(s):  
Mangrove Forest ◽  
Interpolation Method ◽  
Systematic Sampling ◽  
Mangrove Forests ◽  
Transect Line ◽  
Straight Line ◽  
Measurement Results ◽  
The Government ◽  
Systematic Sampling Method ◽  
North Sumatra

Mangrove forest ecosystems are  habitat of various types of microorganisms, but now, problems of mangrove forests experience are in quality and wealth. Efforts to rehabilitate activities  mangrove forests againts had been carried out but the results shown had not been maximized, so it is need the correct strategies  to achieve the success for rehabilitation activities. The studied was conducted in Teluk Kupang, East Nusa Tenggara, covered coastal areas of Kupang's mangrove forests and coastal mangrove forests in Kupang district. The method used in this studied was a systematic sampling method that was systematically distributed across all the mangrove forest areas. The method used for salinity measurement was  method of transmission and Transect Line Plots. Measurements was made in straight line and the size of the plot is 10 m x 10 m, the distanced between lines was 50 meters so that  total lane is 547 with the number of plots of observation 1641 plots. The value of  measurement results was made into the spread of salinity used the interpolation method. The condition of the crossed of  mangrove forest located on  coastal panoramas of  Kupang city shows a salinity value of 10,26 - 26.33%, while  salinity conditions was on the coast of  Kupang ten district 10-42.33 ‰. The salinity condition was formulation of the environmental conditions  mangrove forest on  coast of the island as well as attempts to support  management of mangrove forest activities. The distribution of different mangrove forest conditions along the coastal zone of North Sumatra shows an environmental condition that supports mangrove growth even though in some places the salinity values are high. Results of this study of salinity conditions is a study of the environment of mangrove growth so that it can provide an overview for the government in conducting various activities to rehabilitate mangrove forests.   

Seed predation in a tropical mangrove forest: a test of the dominance-predation model in northern Australia

1997 ◽  
Vol 13 (2) ◽  
pp. 293-302 ◽  
Author(s):  
Keith A. McGuinness
Keyword(s):  
Forest Structure ◽  
Mangrove Forest ◽  
Inverse Relationship ◽  
Avicennia Marina ◽  
Mangrove Forests ◽  
Northern Australia ◽  
Rhizophora Stylosa ◽  
Ceriops Tagal ◽  
Preferred Species ◽  
Made In

ABSTRACTStudies of predation on propagules of the mangroves Avicennia marina, Bruguiera exaristata, Ceriops tagal and Rhizophora stylosa were made in a forest in northern Australia to test the generality of the dominance-predation model. This model states that an inverse relationship exists between the dominance of a species in the canopy of mangrove forests and the rate of predation on the propagules of that species. Significant differences in predation were found among the four species, and among patches of forest dominated by the different species. Predators attacked more than 50% of the propagules of all species except R. stylosa, so are likely to significantly affect forest structure. The intensity of predation did not, however, vary as the dominance-predation model predicted. Instead, predation on the propagules of a species appeared to depend on the availability of propagules of other, more highly preferred, species.

scholarly journals Peranan Restorasi Hutan dalam Konservasi Jenis Mangrove di Pesisir Timur Sumatera Utara

2018 ◽  
Vol 1 (2) ◽  
pp. 162-168
Author(s):  
Rizka Amelia ◽  
Onrizal Onrizal ◽  
Nurdin Sulistiyono
Keyword(s):  
Mangrove Forest ◽  
Buffer Zone ◽  
Forest Composition ◽  
Stand Age ◽  
Secondary Forests ◽  
Mangrove Forests ◽  
Mangrove Species ◽  
Mangrove Restoration ◽  
Wetland Resource ◽  
North Sumatra

Hutan mangrove merupakan sumber daya lahan basah yang berfungsi sebagai penyangga kehidupan. Namun demikian, dalam beberapa dekade terakhir, hutan mangrove banyak yang rusak atau hilang, terutama akibat konversi mangrove menjadi lahan tambak. Kegiatan restorasi mangrove pada lahan bekas tambak telah mulai dilakukan dalam beberapa tahun terakhir. Peneltian ini bertujuan untuk mengukur pemulihan jenis-jenis mangrove melalui kegiatan restorasi mangrove pada lahan bekas tambak serta mengetahui komposisi jenis hutan mangrove hasil restorasi dimaksud di pesisir timur Sumatera Utara. Sebanyak 30 plot contoh yang masing masing berukuran 10 m x 10 m telah dibangun di setiap umur tegakan (5-9 tahun) dan hutan sekunder. Seluruh pohon yang berdiameter (DBH) ≥ 2 cm di dalam plot contoh diidentifikasi dan diukur diamaternya. Secara keseluruhan, terdapat 14 jenis mangrove pada seluruh plot contoh atau setara dengan 42,42% dari seluruh jenis tumbuhan mangrove sejati yang terdapat di Indonesia. Dengan demikian, restorasi mangrove mampu memulihkan keanekaragaman jenis mangrove, sehingga restorasi mangrove pada lahan bekas tambak perlu dipromosikan dalam upaya mengembalikan berbagai fungsi mangrove bagi ketahanan masyarakat dan sumberdaya pesisir.   Mangrove forest is a wetland resource that serves as a buffer zone. However, in the past few decades, many mangrove forests have been damaged or converted, mainly into ponds. To address such a problem, mangrove restoration activities have begun in recent years. This research aims to measure the recovery of mangrove species on ex-pond land and indicate the type of mangrove forest composition through the mangrove restoration activities in North Sumatra. A total of 30 sample plots, with 10 m x 10 m size each, have been built at each stand age (5-9 years) and secondary forests. All trees with a diameter (DBH) ≥ 2 cm in the sample plot are identified and measured. The results show that overall, there are 14 types of mangroves in all sample plots, equivalent to 42.42% of all pure mangrove species in Indonesia. Therefore, it can be concluded that the activities can restore the diversity of mangrove species, so that needs to be promoted as an effort to restore the various functions of mangroves to resilience the community and coastal resources.

scholarly journals Inventory of mangrove forest as part of management effort in coastal area of Deli Serdang, North Sumatra

2011 ◽  
Vol 1 (2) ◽  
pp. 58-69
Author(s):  
SRI SUSANTI NINGSIH ◽  
RETNO WIDHIASTUTI ◽  
BUDI UTOMO ◽  
GUSLIM GUSLIM
Keyword(s):  
Coastal Area ◽  
Mangrove Forest ◽  
Research Study ◽  
Coastal Region ◽  
Avicennia Marina ◽  
Parameter Analysis ◽  
Excoecaria Agallocha ◽  
Management Effort ◽  
Avicennia Alba ◽  
North Sumatra

Ningsih SS, Widhiastuti R, Utomo B, Guslim. 2011. Inventory of mangrove forest as part of management effort in coastal area of Deli Serdang, North Sumatra. Bonorowo Wetlands 1: 58-69. The research aims describe and compare the condition and management of the mangroves at Deli Serdang regency. The research aims describe and compare the condition and management of the mangroves at Deli Serdang regency. The research study was conducted in 9 mangrove villages at the coastal region of Deli Serdang regency. The methods used the square line with a line 10 m x 60 m sizes by vertical sea side ways for each village. The seedlings sub size 2 m x 2 m square, the saplings sub size 5 m x 5 m square, and trees level sub sizes 10 m x 10 m. The parameter analysis was important values index, diversities index, profile diagram, the mangrove thickness and salinities. The result, showed that mangrove vegetations was dominated by Avicennia marina (api-api hitam) and followed by Excoecaria agallocha (butabuta) and Avicennia alba (api-api putih). The diversities mangroves of the coastal region Deli Serdang regency are still low. The thickness and the thinness of mangrove forest were found in Paluh Kurau (500 m) and Rugemuk (20 m), respectively. The mangroves villages with the highest canopy wide were in Karang Gading (78,99%), Tanjung Rejo (63,76%), while the lowest one were in Paluh Sibaji (20,58%) and Rugemuk (26,43%). The highest salinity were found at sub districts of Labuhan Deli and Hamparan Perak, while middle salinity at sub district of Percut Sei Tuan, while of district of Pantai Labu the salinity were from low level to middle. Base on the analysis of the vegetation closeness and canopy width, the condition of coastal region of Deli Serdang regency mangroves were destroyed.

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