scholarly journals Karakteristik Mangrove Di Muara Sungai Timur Kawasan Laguna Segara Anakan, Kabupaten Cilacap Jawa Tengah

2020 ◽  
Vol 9 (4) ◽  
pp. 416-422
Author(s):  
Raditya Rizki Ananta ◽  
Nirwani Soenardjo ◽  
Rini Pramesti
Keyword(s):  
Community Structure ◽  
Avicennia Marina ◽  
Hemispherical Photography ◽  
Bruguiera Gymnorrhiza ◽  
Mangrove Species ◽  
Nypa Fruticans ◽  
Sonneratia Caseolaris ◽  
Rhizophora Apiculata ◽  
Sonneratia Alba ◽  
Avicennia Alba

ABSTRAK: Ekosistem mangrove adalah komunitas tumbuhan tropis yang berada di daerah tepi pantai yang memiliki kemampuan adaptasi pada perairan asin di wilayah intertidal yang dipengaruhi oleh pasang surut air laut. Struktur komunitas mangrove merupakan salah satu parameter dalam menentukan kondisi mangrove. Kawasan ekosistem mangrove yang memiliki karakteristik dinamis komposisi jenis mangrove terdapat di Segara Anakan. Akan tetapi memiliki penurunan luasan hutan mangrove. Hal ini adanya beragam faktor kondisi lingkungan di Segara Anakan, sehingga menyebabkan variabilitas mangrove wilayah Segara Anakan berbeda. Namun kondisi terkini belum banyak dilakukan dalam suatu penelitian sehingga dibutuhkan informasi ilmiah terkini untuk mengetahui komposisi jenis mangrove. Untuk mengatasi hal tersebut maka dilakukan penelitian struktur komunitas untuk mengetahui kondisi ekologi mangrove di Segara Anakan. Tujuan penelitian ini adalah menggambarkan kondisi struktur komunitas mangrove di muara timur Segara Anakan. Lokasi penelitian berada di muara sungai bagian Timur (Sungai Donan). Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Penentuan titik pengambilan data atau sampel di setiap lokasi dilakukan dengan teknik purposive sampling. Selain itu, digunakan teknik transek kuadrat 10x10 m dan Hemispherical Photography. Hasil penelitian menunjukkan kerapatan pohon sebesar 90,6 /ha. Kerapatan sapling rata-rata bernilai 1023 /ha. Kerapatan seedling bernilai 1746 /ha di Muara Timur. Tutupan kanopi komunitas mangrove memiliki persentase kurang dari 75%. Tinggi dan diameter pohon didapatkan sebesar 5,97 m dan 3,1 cm. Spesies mangrove yang ditemukan di dalam plot berjumlah 10 spesies mangrove yaitu Rhizophora apiculata, Bruguiera gymnorrhiza, Aegiceras corniculatum, Avicennia marina, Avicennia alba, Ceriops tagal, Ceriops decandra, Sonneratia caseolaris, Sonneratia alba, Scyphiphora hydrophyllacea, Xylocarpus moluccensis, Xylocarpus granatum, Talipariti tiliaceum, dan Nypa fruticans. ABSTRACT: Mangrove ecosystems are communities of tropical plants located on the coast that have the ability to adapt to salty waters in intertidal areas which are affected by tides. Mangrove community structure is one of the parameters in determining mangrove condition. Mangrove ecosystem areas that have dynamic characteristics of mangrove species composition are found in Segara Anakan. However, it has decreased the area of mangrove forests. This is because of various environmental conditions in Segara Anakan, causing variability of mangroves in the Segara Anakan area to be different. However, recent conditions have not been carried out in many studies, so the latest scientific information is needed to determine the species composition of mangroves. To overcome this, a community structure research was conducted to determine the ecological conditions of mangroves in Segara Anakan. The purpose of this study was to describe the condition of the mangrove community structure in the eastern estuary of Segara Anakan. The research location is in the mouth of the eastern river (Donan River). The method used in this research is descriptive method. Determination of data collection points or samples at each location was done by using purposive sampling technique. In addition, the 10x10 m quadratic transect technique and Hemispherical Photography were used. The results showed the tree density was 90.6 ind/ha. Saplingaveraged 1023 ind/ha. The density seedling is 1746 ind/ha in Muara Timur. The canopy cover of the mangrove community has a percentage of less than 75%. The tree height and diameter were 5.97 m and 3.1 cm respectively. There are 10 mangrove species found in the plot, namely Rhizophora apiculata, Bruguiera gymnorrhiza, Aegiceras corniculatum, Avicennia marina, Avicennia alba, Ceriops tagal, Ceriops decandra, Sonneratia caseolaris, Sonneratia alba, Scyphiphora hydrophyllacea, Xylocarpus moluccensis, Xylocarpus granatum, Talipariti tiliaceum, and Nypa fruticans.   

scholarly journals Mangrove diversity and community structure of Mimika District, Papua, Indonesia

2021 ◽  
Vol 22 (8) ◽  
Author(s):  
Gesang Setyadi ◽  
RUDHI PRIBADI ◽  
DIAH PERMATA WIJAYANTI ◽  
DENNY NUGROHO SUGIANTO
Keyword(s):  
Community Structure ◽  
Basal Area ◽  
Avicennia Marina ◽  
Diversity Indices ◽  
Canopy Height ◽  
Bruguiera Gymnorrhiza ◽  
Mangrove Species ◽  
Tidal Zone ◽  
Nypa Fruticans ◽  
Rhizophora Apiculata

Abstract. Setyadi G, Pribadi R, Wijayanti DP, Sugianto DN. 2021. Mangrove diversity and community structure of Mimika District, Papua, Indonesia. Biodiversitas 22: 3562-3571. Despite being one the largest mangrove forest in the world, there are few studies on mangrove diversity and community structure in Mimika, Papua Province. The study collected data from 4 estuaries of Mimika Region, i.e. Kamora, Tipuka, Ajkwa and Minajerwi. Mangrove species, tree diameter at breast height and canopy height data were collected in 10 m x 10 m plot with three replicates for distance, specifically 0, 250, and 500m perpendicular to the riverbank. This study found 66 mangroves species consisting of 20 major, 10 minor, and 36 associate mangrove species. Their density ranged from 577-1,345 trees ha-1 with diversity Shannon-Weiner diversity indices (H’) ranging from 0.62-1.19 and Evenness Index (J’) ranging from 0.09-0.18. The canopy height of the mangrove trees was ranged from 9-42.5 m. The highest density species was Rhizophora apiculata (333 ha-1) followed by Avicennia marina, Bruguiera gymnorrhiza, and Camptostemon schultzii, while B. parviflora, S. alba, and X. granatum were the least dominant. Regarding basal area, R. apiculata and B. gymnorrhiza were the highest with medians of 7,853 cm2 ha-1 and 5,201 cm2 ha-1 respectively. In the low tidal zone area, mangrove was dominated by A. marina, Sonneratia alba and R. mucronata. Medium low to medium high tidal zones were dominated by B. gymnorrhiza, R. apiculata, and B. parviflora. The high tidal zone was more dominated by Nypa fruticans.

scholarly journals Analisa Tutupan Kanopi Mangrove Dengan Metode Hemispherical Photography di Desa Betahwalang, Kabupaten Demak

2020 ◽  
Vol 9 (3) ◽  
pp. 317-325
Author(s):  
Muksin Purnama ◽  
Rudhi Pribadi ◽  
Nirwani Soenardjo
Keyword(s):  
Canopy Cover ◽  
Avicennia Marina ◽  
Sampling Station ◽  
Hemispherical Photography ◽  
Mangrove Species ◽  
Purposive Sampling ◽  
Sonneratia Caseolaris ◽  
Rhizophora Apiculata ◽  
Tree Canopy Cover ◽  
Avicennia Alba

ABSTRAK: Ekosistem mangrove merupakan ekosistem yang tumbuh di daerah bersalinitas cukup tinggi yang memiliki kemampuan adaptasi di daerah intertidal. Sumber nutrien mangrove didapatkan salah satunya dari serasah mangrove. Banyak sedikitnya serasah mangrove dipengaruhi oleh kerapatan dan tutupan kanopi mangrove. Tujuan dari penelitian adalah untuk menganalisis persentase tutupan kanopi mangrove di Desa Betahwalang. Metode deskriptif adalah metode yang dipilih dalam penelitian ini. Stasiun lokasi penelitian ditentukan menggunakan purposive sampling. Mengetahui tutupan kanopi mangrove digunakan metode Hemispherical Photography. Metode Hemispherical Photographyadalah metode dengan menghitung luasan tutupan kanopi dengan menggunakan kamera dari bawah kanopi pohon. Metode ini menghasilkan data yang lebih akurat dikarenakan luas wilayah yang ditangkap dengan kamera lebih spesifik sehingga menggambarkan tutupan kanopi pohon sesungguhnya. Pengambilan data tutupan kanopi mangrove menggunakan metode Hemispherical Photography menggunakan kamera depan handphone OPPO F1 dengan resolusi kamera 8 megapixel dengan resolusi HD (1.280x720) pada suatu titik pengambilan foto. Teknik ini digunakan dalam plot 10x10 m dan dianalisis menggunakan software Ms. excel 2013 dan Image J. Hasil penelitian ini ditemukan 12 spesies mangrove, 5 diantaranya terdapat di dalam plot pengambilan data. Spesies mangrove yang ditemukan di dalam plot yaituRhizophora mucronata, Rhizophora apiculata, Avicennia alba, Avicennia marina dan Sonneratia caseolaris. Nilai kerapatan yang didapatkan berkisar 1.066–3.066 ind/ha dan nilai tutupan kanopi mangrove sebesar 81,07% yang tergolong kedalam kategori padat. ABSTRACT: Mangrove ecosystems is that ecosystems grow in areas of high enough salinity that have the ability to adapt in intertidal zone. Mangrove nutrient obainted form litter mangrove. Litter mangrove was affected by the density and canopy cover mangrove. The purposes of this research is to analyzedmangrove canopy cover in Betahwalang, Demak. Descriptive method is the method chosen in this study. Sampling station was designated used purposive sampling methodand mangrove canopy cover was determined using hemispherical photography method.The method was basically calculatingthe extent of canopy cover by using camera positionedunder a trees canopy. This method believed to be relatively accurate on determining the actual cover area since the area captured by  camera are precisely specificbecause of an area captured by the camera more specific sodescribe the actual tree canopy cover. Retrieval of canopy cover data used hemispherical photography method used the mobile phone front camera with 8 megapixel camera resolution with HD resolution (1.280 x 720) at a point of taked photos. This method used in 10m x 10m plot and analyzed used software Ms.excel 2013 and Image J.The research found12 mangrove species, 5 in the plot. Mangrove species in the plot mean Rhizophora mucronata, Rhizophora apiculata, Avicennia alba, Avicennia marina dan Sonneratia caseolaris. Density have ranged 1.066- 3.066 ind/ha and canopy covercover of trees canopy and so classified as dense canopy cover of 81.07% were classified into solid categories.

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 Community Structure and Percent Cover of Mangrove in Gamtala Village, Jailolo District, West Halmahera Regency

2019 ◽  
Vol 7 (1) ◽  
pp. 284
Author(s):  
Elroi Nity ◽  
Suria Darwisito ◽  
Joshian N.W. Schaduw ◽  
Adnan S. Wantasen ◽  
Deiske A. Sumilat ◽  
...  
Keyword(s):  
Community Structure ◽  
Line Transect ◽  
Percent Cover ◽  
Rhizophora Mucronata ◽  
Bruguiera Gymnorrhiza ◽  
Rhizophora Apiculata ◽  
Xylocarpus Granatum ◽  
Sonneratia Alba ◽  
Bruguiera Gymnorhiza ◽  
Avicennia Alba

This study aims to know the percent cover of mangrove and to assess the community structure. It was carried out in Gamtala village, Jailolo district, and west Halmahera regency, using line transect method with 10x10 m plot.. Data analysis covered the community structure and percent cover of mangrove canopy. This study found seven mangrove species, Bruguiera gymnorrhiza, Rhizophora apiculata, Sonneratia alba, Rhizophora mucronata, Avicennia alba, Bruguiera sexangula, dan  Xylocarpus granatum. Based on Importance Value Index (IVI), Bruguiera gymnorhiza had the highest, 149.06, and Avcsennia alba did the lowest, 9.3507. In addition, Gamtala village had manrove percent cover of 72.11 %.Keywords: canopy, community structure, mangrove, Gamtala.ABSTRAKTujuan dari penelitian ini adalah untuk mengetahui persentasi tutupan mangrove dan menghitung struktur. Penelitian ini dilakukan di Desa Gamtala Kecamatan Jailolo Kabupaten Halmahera Barat. Penelitian ini menggunakan metode transek garis dengan 10x10 m plot. Penelitian ini menemukan tujuh spesies mangrove, yaitu Bruguiera gymnorrhiza, Rhizophora apiculata, Sonneratia alba, Rhizophora mucronata, Avicennia alba, Bruguiera sexangula, dan  Xylocarpus granatum. Berdasarkan Indeks Nilai Penting, Bruguiera gymnorhiza memiliki nilai tertinggi, 149,06, dan Avcsennia alba memiliki nilai terendah 9,3507. Sebagai tambahan, desa Gamtala memiliki tutupan mangrove sebesar 72,11 %.Kata Kunci: kanopi, struktur komunitas, mangrove, Gamtala

scholarly journals Percentage of Mangrove Canopy Cover and Mollusks Abundance in Benoa Bay Mangrove Ecosystem

2021 ◽  
Vol 5 (3) ◽  
pp. 105
Author(s):  
Shintani Asri Tinambunan ◽  
Nyoman Dati Pertami ◽  
Ni Made Ernawati
Keyword(s):  
Canopy Cover ◽  
Avicennia Marina ◽  
Mangrove Ecosystem ◽  
Line Transect ◽  
Hemispherical Photography ◽  
Bruguiera Gymnorrhiza ◽  
Mangrove Species ◽  
Rhizophora Stylosa ◽  
Rhizophora Apiculata ◽  
The Relationship

This research was conducted to determine the condition of the mangrove ecosystem based on its canopy cover and to determine the types of mollusks (Bivalves and Gastropods) associated with the Benoa Bay mangrove ecosystem. Hemispherical photography is a method for observing mangrove canopy cover and line transect method for mollusks. The composition of mangrove species found in the research location were five species, namely Rhizophora stylosa, Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorrhiza, and Avicennia marina. The percentage of mangrove canopy cover in the Benoa Bay mangrove ecosystem is in a good category (average = 76.59%). There are eight types of mollusks found in the research location. There are two types of bivalves (Polymesoda bengalensis and Gafrarium pectinatum) and six types of gastropods (Nerita balteata, Nerita picea, Neritina turrita, Pila ampullacea, Cassidula aurisfelis, and Littoraria melanostoma). The relationship between the percentage of mangrove canopy cover and abundance of mollusks in the Benoa Bay mangrove ecosystem is very strong (r) of 0.920. The higher the percentage value of mangrove canopy cover, the higher the mollusks abundance.

scholarly journals Analisis Vegetasi Dan Pemanfaatan Mangrove Oleh Masyarakat Di Solok Buntu Taman Nasional Sembilang Kabupaten Banyuasin Provinsi Sumatera Selatan

2019 ◽  
Vol 2 (1) ◽  
pp. 15-22
Author(s):  
Rico Febriansyah ◽  
Fitri Agustriani ◽  
Andi Agussalim
Keyword(s):  
National Park ◽  
Avicennia Marina ◽  
Tree Level ◽  
Bruguiera Gymnorrhiza ◽  
Excoecaria Agallocha ◽  
Nypa Fruticans ◽  
Rhizophora Apiculata ◽  
Xylocarpus Granatum ◽  
Mangrove Vegetation ◽  
Avicennia Alba

Hutan mangrove di Solok Buntu Taman Nasional Sembilang telah mengalami kerusakan akibat aktifitas manusia seperti penebangan hutan untuk aktifitas tambak, kayu bakar, dan pengambilan kayu untuk kontruksi rumah masyarakat. Tujuan penelitian ini adalah menganalisis vegetasi dan pemanfaatan mangrove oleh masyarakat di Solok Buntu. Penelitian dilaksanakan bulan Desember 2015. Metode yang digunakan adalah metode transek kuadrat dimana ukuran plot pohon 10 x 10 meter, anakan 5 x 5 meter dan semai 2 x 2 meter. pengambilan data vegetasi mangrove dibagi menjadi dua  cara yaitu transek tegak lurus sungai dan transek sejajar sungai. Hasil yang diperoleh ditemukan 7 jenis mangrove yaitu Avicennia marina, Avicennia alba, Rhizophora apiculata, Bruguiera gymnorrhiza, Excoecaria agallocha, Xylocarpus granatum dan Nypa fruticans. Vegetasi mangrove yang terdapat disepanjang Sungai Solok Buntu Taman Nasional Sembilang yaitu Rhizophora apiculata dengan INP tertinggi sebesar 182,98% pada tingkat pohon sedangkan pada tingkat anakan Rhizophora apiculata dan Excoecaria agallocha memiliki INP tertinggi sebesar 300% dan pada tingkat semai Rhizophora apiculata memiliki nilai tertinggi sebesar 200%. Pemanfaatan mangrove oleh masyarakat di Solok Buntu banyak dimanfaatkan sebagai tempat mencari ikan, udang, kepiting. Jenis mangrove yang banyak dimanfaatkan adalah Avicennia sp karena jenis ini banyak tumbuh disekitar tempat tinggal masyarakat sehingga mudah untuk diambil.   Analysis Of Mangrove Vegetation And Utilization By Communities In Solok Buntu National Park, Banyuasin Regency, South Sumatera Province   The mangrove forests in Solok Buntu Sembilang National Park have suffered damage as a result of human activities such as deforestation for aquacultur, firewood and horsing construction. The purpose of this study was to analyze the mangrove vegetation in Solok Buntu and its utilization. The experiment was conducted in December 2015. The method used is the square of the transect method in which a plot size of 10 x 10 meter tree, 5 x 5 meter saplings and seedlings, 2 x 2 meters. Mangrove vegetation data collection is divided into two ways ie perpendicular transects and river transects parallel to the river. There are 7 mangrove species Avicennia marina, Avicennia alba, Rhizophora apiculata, Bruguiera gymnorrhiza, Excoecaria agallocha, Xylocarpus granatum and Nypa fruticans found in the location. Mangrove vegetation found along the Sungai Solok Buntu Sembilang National Park is Rhizophora apiculata with the highest INP at  tree level  is 182.98%, while at the seedling level Rhizophora apiculata and Excoecaria agallocha has the highest INP 300% and for seedlings of Rhizophora apiculata had the highest value 200%. Utilization of mangrove communities in Solok Buntu used by the public to catch fishes, shrimps, and crabs. Species of mangrove that often used are Avicennia sp because this species are widely grown in the community area.

scholarly journals KESESUAIAN EKOWISATA MANGROVE DITINJAU DARI ASPEK BIOGEOFISIK KAWASAN PANTAI GONDA DI DESA LALIKO KECAMATAN CAMPALAGIAN KABUPATEN POLEWALI MANDAR

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Muhammad Sadik ◽  
Amir Hamzah Muhiddin ◽  
Marzuki Ukkas
Keyword(s):  
Data Collection ◽  
Good Condition ◽  
Avicennia Marina ◽  
Mangrove Ecosystem ◽  
Bruguiera Gymnorrhiza ◽  
Mangrove Species ◽  
Rhizophora Stylosa ◽  
Rhizophora Apiculata ◽  
Avicennia Alba ◽  
Suitable Area

Ecotourism is a nature-based tourism activity that includes aspects of education and interpretation of the natural environment and community culture with ecological sustainability management. This study aims to determine the bioecological aspects of mangrove ecosystem as an object of ecotourism and to know the geophysical aspects of Gonda Beach as a supporter of mangrove ecotourism suitability on Gonda Beach. This research was conducted in November 2016 in Laliko Village, Campalagian Sub-district, Polewali Mandar Regency, including mangrove bioecological data collection including thickness, density, species and biota associated with mangrove and coastal geophysical data collection covering wide coastal measurement, coastal slope, depth, tidal, current, wave and substrate of waters. Result of research show potential of mangrove ecosystem to become ecotourism area with good condition of mangrove vegetation. The mangrove species in the ecosystem of the gonda mangroves are Bruguiera gymnorrhiza, Rhizophora stylosa, Rhizophora apiculata, Ceriops tagal, Sonneratia alba, Avicennia alba, Avicennia marina, Xylocarpus granatum and Xylocarpus moluccensis, and diverse biota such as fish, reptiles, birds and crabs as a tourist attraction . Gonda mangrove ecosystem area is a very suitable area to become a mangrove ecotourism area.Keywords: ecotourism, mangrove, conformity analysis, tourism object

KAJIAN NILAI EKONOMIS DAN DAMPAK SOSIAL KEBERADAAN EKOSISTEM MANGROVE TERHADAP MASYARAKAT PESISIR

2020 ◽  
Vol 11 (1) ◽  
pp. 1-10
Author(s):  
Agus Putra A. Samad ◽  
Pitri Agustina ◽  
Mus Herri
Keyword(s):  
Avicennia Marina ◽  
Rhizophora Mucronata ◽  
Bruguiera Gymnorrhiza ◽  
Sonneratia Caseolaris ◽  
Rhizophora Apiculata ◽  
Xylocarpus Granatum ◽  
Bruguiera Parviflora

Langsa merupakan salah satu kota pesisir Aceh yang memiliki kawasan mangrove yang  sangat  potensial.  Kota  ini  memiliki  panjang  garis  pantai  16  km dengan luas kawasan mangrove sebesar 7.837 Ha. Keberadaan mangrove di wilayah ini menjadi aset strategis untuk dikembangkan menjadi basis kegiatan ekonomi untuk memakmurkan masyarakat dan meningkatkan pendapatan  asli  daerah. Tujuan utama penelitian ini adalah untuk melestarikan potensi sumberdaya ekosistem mangrove yang ada di Kota Langsa agar dapat memberikan fungsi ekologis dan ekonomis secara berkesinambungan kepada masyarakat disekitarnya. Kajian ini dilakukan menggunakan metode survei, analisa laboratorium dan observasi lapangan. Hasil pengamatan terhadap komposisi jenis tumbuhan yang terdapat di ekosistem mangrove menunjukkan 8 jenis tumbuhan mangrove yaitu: jenis Avicennia lanata, Avicennia marina, Bruguiera gymnorrhiza, Bruguiera parviflora, Rhizophora apiculata, Rhizophora  mucronata, Sonneratia Caseolaris dan Xylocarpus granatum. Nilai rata-rata parameter kualitas air di ekosistem mangrove secara beturut-turut adalah DO (6.3 ppm),salinitas (27 ‰), pH tanah dasar (6.0), pH tanah permukaan (5.08), pH air (7.33), suhu (30 oC) dan kecerahan (5 m).  Perhitungan terhadap nilai manfaat ekosistem mangrove meliputi: 1) Nilai manfaat langsung perikanan tangkap: Rp. 8.710.000.000 per tahun, 2) Nilai manfaat budidaya tambak: Rp. 93.940.000.000,- per tahun, 3) Nilai penahan abrasi dan banjir: Rp. 300.000.000,- per hektar per tahun, 4) Nilai sebagai penyediaan unsur hara: Rp. 28.634.000,- per tahun, 5) Nilai manfaat pilihan: Rp. 210.000.000,- per tahun dan 6) Nilai manfaat keberadaan: Rp. 1.464.493.000,- per tahun.  Nilai keberadaan ekosistem mangrove yang dinilai adalah Nilai Keaslian = 70 % (lebih dari asli), Nilai Keindahan Alam = 74 % (lebih dari indah), Nilai Kenyamanan = 66% (kondisi lebih dari nyaman),  dan Nilai Aspirasi masyarakat = 98 % (sangat didukung masyarakat). Alternatif  pengelolaan  dan  pemanfaatan  ekosistem  mangrove  yang diperkirakan cocok secara ekonomi dan ekologis terdiri dari beberapa kegiatan pilihan yaitu budidaya ikan, udang, tiram dan kepiting, budidaya ikan kerapu dan kakap, pengolahan buah dan daun mangrove, dan pengembangan obyek wisata.

scholarly journals Potential Regeneration of Mangrove Coastal of Payum Beach Merauke District

2019 ◽  
pp. 11-23
Author(s):  
Stenly M.B.S Wairara ◽  
Reny Sianturi
Keyword(s):  
Tree Level ◽  
Sampling Location ◽  
Mangrove Species ◽  
Transect Line ◽  
Rhizophora Apiculata ◽  
Sonneratia Alba ◽  
Avicennia Alba ◽  
Data Collection Technique ◽  
Aegialitis Annulata ◽  
Important Value Index

The purpose of this study was to analyze the regeneration potential of mangroves found on the coast of Payum, Merauke Regency, Papua Province. This research was conducted in August-October 2018. The data collection technique was purposive sampling using Transect Line Plots. The sampling location was chosen based on the representation of the presence of mangroves in three locations, namely zones A, B and C. The results of this study explained that there were three tree-level mangrove species, namely Avicennia alba, Rhizophora apiculata and Sonneratia alba. Type A. alba dominates in zone A with an important value index (INP) of 205.76%, zone B does not have a certain type that dominates, while Rhizophora apiculata dominates in zone C with INP 185.35%. The potential of the three mangrove species in zones A, B and C is good. Aegialitis annulata species are only found in sapling and seedling levels. In zones A and B are classified as new while in zone C is classified as bad. This study concluded that Avicennia alba, Rhizophora apiculata and Sonneratia alba had the potential to regenerate in all three locations (Zones A, B and C) compared to Aegialitis annulata.

scholarly journals Regeneration capacity and threats to mangrove areas on the southern coast of Oriental Mindoro, Philippines: Implications to mangrove ecosystem rehabilitation

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
AARON FROILAN RAGANAS ◽  
ANNALEE S. HADSALL ◽  
NELSON M. PAMPOLINA ◽  
STEFAN HOTES ◽  
DAMASA B. MAGCALE-MACANDOG
Keyword(s):  
Dominant Species ◽  
Avicennia Marina ◽  
Mangrove Ecosystem ◽  
Regeneration Capacity ◽  
Southern Coast ◽  
Mangrove Species ◽  
Rhizophora Apiculata ◽  
Mangrove Ecosystems ◽  
Sonneratia Alba ◽  
Ecosystem Rehabilitation

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.

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