scholarly journals Ecological study on mangrove forest in East Coast of North Sumatra

2008 ◽  
Vol 9 (1) ◽  
pp. 25-29 ◽  
Author(s):  
ONRIZAL ONRIZAL
Keyword(s):  
Mangrove Forest ◽  
Ecological Study ◽  
East Coast ◽  
North Sumatra

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 Morphological identification of phosphate solubilizing and cellulolytic fungi from mangrove soil under Rhizophora stylosa stands

2021 ◽  
Vol 912 (1) ◽  
pp. 012052
Author(s):  
D Elfiati ◽  
Delvian ◽  
A Susilowati ◽  
N W Y Rizki ◽  
A F M Harahap ◽  
...  
Keyword(s):  
Mangrove Forest ◽  
Methyl Cellulose ◽  
Economic Benefits ◽  
Soil Samples ◽  
Morphological Identification ◽  
Rhizophora Stylosa ◽  
Cellulolytic Fungi ◽  
Mangrove Soil ◽  
Phosphate Solubilizing ◽  
North Sumatra

Abstract Mangrove forest is one of the forest ecosystems that can be found in tidal areas. Mangrove forest have ecological, socio-economic benefits for organisms that live in the sea. One of the microorganism that live in mangrove forest is fungus. Therefore, this study aimed to isolate and identify phosphate solubilizing and cellulolytic fungi from mangrove soil. Soil samples were collected from a stands of Rhizophora stylosa in Lubuk Kertang Village, West Brandan District, Langkat Regency, North Sumatra. Soil samples were taken randomly with a dept of 0-20 cm. Isolation of phosphate solubilizing fungi was carried out using Pikovskaya medium and cellulolytic fungi using carboxyl methyl cellulose (CMC) medium. To determine the effectiveness of fungi qualitatively, the phosphate solubility and cellulolytic index were calculated. All isolates obtained were identified morphologically by observing colonies macroscopically and microscopically. This study obtained 12 isolates of phosphate solubilizing and 8 isolates of cellulolytic fungi. Phosphate solubility index ranging from 2.06-2.87 and cellulolytic index of 0.33-3.00. Morphological identifications showed that all isolates of phosphate solubilizing fungi belonged to the genus Aspergillus, while all isolates of cellulolytic fungi belonged to the genus Chaetomium.

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 ARENA SOSIAL, PETANI, DAN PERLUASAN KONFLIK PERTANAHAN DI SUMATERA UTARA

2020 ◽  
Vol 22 (2) ◽  
pp. 245
Author(s):  
Alan Darmawan
Keyword(s):  
Political Development ◽  
East Coast ◽  
Political Support ◽  
Political Elites ◽  
Land Grabbing ◽  
Mass Mobilization ◽  
Colonial Legacy ◽  
Multiple Strategies ◽  
North Sumatra ◽  
Mangrove Trees

This article deals with an agrarian dispute that has expanded from the ‘plantation belt’ to the swampy area on the East Coast of North Sumatra, which intertwined with a colonial legacy, environmental issue, Masyarakat Adat discourse, and recent political development. I conducted fieldwork in 2014 and periodic visits in 2015 to live among the community, observe, discuss, and document the events that occurred in the periods, and analyze them historically and also in the recent socio-political and economic context. Focussing on a community called Orang Paluh who are mostly the descendants of the ex-plantation labors in Percut residing on the marshland named Paluh Merbau, this research looks at their attempts in dealing with land grabbing, the change of land use, and in negotiating with the restriction in utilizing mangrove trees in their surroundings. In such a social arena of the dispute, Orang Paluh played multiple strategies against land grabbing through mass mobilization, legal dispute, political support from the local political elites, and an alliance with Badan Perjuangan Rakyat Penunggu Indonesia (BPRPI), which holds a mandate as a regional branch of Aliansi Masyarakat Adat Nusantara (AMAN).

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 Short Communication: The mitochondrial cytochrome c oxidase subunit I (COI) for identification of batoids collected from landed sites in Medan, Indonesia

2020 ◽  
Vol 21 (11) ◽  
Author(s):  
MUFTI SUDIBYO ◽  
Khairiza Lubis ◽  
ACHMAD FARAJALLAH ◽  
NISFA HANIM
Keyword(s):  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Short Communication ◽  
East Coast ◽  
Morphological Trait ◽  
Coi Gene ◽  
Mitochondrial Cytochrome ◽  
Landing Sites ◽  
Dna Fragment ◽  
North Sumatra

Abstract. Lubis K, Sudibyo M, Farajallah A, Hanim N. 2020. Short Communication: The mitochondrial cytochrome c oxidase subunit I (COI) for identification of batoids collected from landing sites in Medan, Indonesia. Biodiversitas 21: 5414-5421.  Batoids are member of Elsamoranch subclass which consist of many species. Most of batoids species are overexploited, especially in Medan Indonesia. Up to presents, the information about diversity of rays on the east coast of North Sumatra, Indonesia was very limited. Therefore, this research aimed to investigate the diversity of rays on the east coast of North Sumatra. We examined the morphological trait of 82 individuals of batoid from three landing sites on the east coast of North Sumatra, namely: Tanjung Balai, Belawan, and Percut, then identify its species based on determination key. After that, we collected pectoral muscle tissue from an individual in each species which successfully identified to extract its genomic DNA. Molecular based identification was carried out by using DNA fragment form COI gene. The successfully amplificated COI gene DNA fragment then was sequenced and analyzed. Based on morphological trait, we successfully identifying nine species of batoid, which is Maculabatis gerrardi, Gymnura poecilura, Dasyatis zugei, Brevitrygon heterura, Neotrygon kuhlii, Hemitrygon bennettii, Rhinobatos jimbaranensis, Rhinoptera javanica, and Taeniura lymma. The result of identification based on COI gene DNA fragment was in congruent with morphological-based identification based on data BLAST-N and genetic distance value within same species. The nucleotide diversity within same species ranged from 0-15 nucleotide variants.

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.   

An Ecological Study of Habitat of Mangrove Forest of Bangladesh

2002 ◽  
Vol 13 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Kazi Md. Fazlul Haq ◽  
A.K. Wodeyar
Keyword(s):  
Mangrove Forest ◽  
Ecological Study

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.

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