Nasir Sudirman

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Papers by Nasir Sudirman

Geospatial Modeling of Blue Carbon Ecosystem Coastal Degradation in Jakarta Bay

Indonesian Journal of Oceanography, 2019

Jakarta Bay is shallow water which is used for various activities, currently experiencing environ... more Jakarta Bay is shallow water which is used for various activities, currently experiencing environment, soil,and sediment degradation. Jakarta Bay experienced rapid development, population growth, increased economic activity and utilization of coastal resources. The development of Jakarta Bay is carried out to balance land necessity and overcome the problem of land subsidence through reclamation and construction of sea dikes. Ecosystem services arethe contribution of various interrelated ecological structures and functions, mangrove ecosystems provide services as an important part of the carbon cycle. Mangroves use CO2 for photosynthesis and store it in Biomass and sediment stock. Mangrove ecosystems in Jakarta Bay have been degraded and deforested due to land conversion for settlement, facilities, and other activities, in line with the increasing population. The calculation of the service value of mangrove ecosystems is limited to economic valuation and descriptive account, geospati...

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BAKU MUTU AIR LAUT UNTUK KAWASAN PELABUHAN DAN INDEKS PENCEMARAN PERAIRAN DI PELABUHAN PERIKANAN NUSANTARA KEJAWANAN, CIREBON (Water Quality Standards For Port Area And Water Pollution Index In Fisheries Port Kejawanan, Cirebon)

SAINTEK PERIKANAN : Indonesian Journal of Fisheries Science and Technology, 2013

Pelabuhan Perikanan Nusantara Kejawanan secara administratif terletak di wilayah Kota Cirebon. Pe... more Pelabuhan Perikanan Nusantara Kejawanan secara administratif terletak di wilayah Kota Cirebon. Pelabuhan ini merupakan salah satu Unit Pelaksana Teknis dari Direktorat Jenderal Perikanan Tangkap, Kementerian Kelautan dan Perikanan yang sangat penting peranannya dalam mendukung program industrialisasi perikanan di Cirebon. Aktivitas pelabuhan perikanan yang cukup ramai dengan berbagai kegiatannya antara lain aktivitas bongkar ikan, perbengkelan serta posisinya yang dekat dengan sungai dan terdapat berbagai pabrik pengolahan ikan tentunya akan menimbulkan dampak terhadap kualitas airnya. Penelitian ini bertujuan untuk mengetahui kesesuaian baku mutu air laut untuk pelabuhan serta untuk mengetahui indeks pencemaran yang terjadi. Metode yang digunakan dalam penelitian ini pada dasarnya secara kuantitatif dimana pengumpulan data yang dilakukan dengan pengukuran kualitas air menggunakan Water quality cheker , identifikasi laboratorium untuk sedimen dan air. Hasil yang diperoleh pada penel...

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Pemodelan Spasial Mangrove Sebagai Layanan Ekosistem Karbon Biru Pesisir (Coastal Blue Carbon) DI Teluk Semarang

Teluk Semarang merupakan wilayah pesisir yang padat penduduk dan memiliki aktivitas yang kompleks... more Teluk Semarang merupakan wilayah pesisir yang padat penduduk dan memiliki aktivitas yang kompleks. Permasalahan di Teluk Semarang akibat perkembangan yang pesat mendorong terjadinya konversi area ekosistem mangrove menjadi pemukiman, tambak, industri, dan pertanian. Konversi area ekosistem mangrove menyebabkan pantai rentan terhadap abrasi, kondisi tersebut diperparah dengan bangunan pantai yang menjorok ke laut serta penurunan tanah akibat pengambilan air tanah berlebih yang menciptakan rongga di bawah permukaan tanah hingga terjadi amblesan (land subsidance) turut meningkatkan permasalahan di Teluk Semarang. Layanan ekosistem merupakan kontribusi berbagai struktur dan fungsi ekologis yang saling terkait, ekosistem mangrove memberikan layanan sebagai bagian penting dalam siklus karbon. Mangrove memanfaatkan CO2 untuk fotosintesis dan menyimpannya dalam stok biomass dan sedimen. Perhitungan nilai layanan ekosistem mangrove baru sebatas valuasi ekonomi dan penggambaran secara deskrip...

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Carbon sequestration potential in the rehabilitated mangroves in Indonesia

Ecological Research, 2021

Mangrove ecosystem provides important services for coastal communities. Unfortunately, this ecosy... more Mangrove ecosystem provides important services for coastal communities. Unfortunately, this ecosystem has undergone physical pressures for decades, including land conversion for shrimp aquaculture. Rehabilitation of the degraded mangroves offers an effective solution for bringing back mangrove functions, including carbon sequestration capacity. This study aims to quantify carbon stock (CS) and sequestration rate of a rehabilitated mangrove ecosystem in Indonesia, particularly in Banten Province. We compared sediment CS and carbon accumulation rate (CAR) of a rehabilitated mangrove in Ciseukeut, Panimbang, with a natural mangrove in Cilintang, the Ujung Kulon National Park. The sediment CS to a depth of 1 m in a rehabilitated mangrove in Ciseukeut was higher than in a natural mangrove in Cilintang, constituting 364 Mg C ha−1 and 126 Mg C ha−1, respectively. However, CAR showed the opposite pattern, in which a natural mangrove showed an almost two‐fold higher rate (0.50 ± 0.42 Mg C ha...

Distribution of macro plastic debris in Muaragembong coastal bay during the east moonson and the east to west monsoon transition in 2020

E3S Web of Conferences, 2021

Marine debris pollution can threaten the sustainability of natural resources in coastal regions e... more Marine debris pollution can threaten the sustainability of natural resources in coastal regions ecosystem. Marine debris is worldwide issue now and Indonesia considered as a second biggest polluter of plastic to the world ocean. Massive efforts have been applied to tackle marine debris, both by the central government and provincial level, to manage these problems and minimize the impact on the coastal ecosystem. Various types of marine debris threaten the mangrove and seagrass ecosystem by covering its roots and leaves, slowing down its growth rate, and even killing them. The aim of this research is to identify the composition of marine debris in estuary waters and mangrove ecosystem. The research activity was conducted in Muaragembong, Bekasi Regency, which is considered part of Jakarta Bay as the source of the marine debris site. The result showed that the marine debris composition during the east monsoon (July) was dominated by plastic with 71%, while during the transition east-t...

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Modeling mangrove ‘blue carbon’ ecosystem service in Jakarta bayas an impact of coastal development

E3S Web of Conferences, 2018

Coastal ecosystems provide various ecosystem services in the form of natural resources, life supp... more Coastal ecosystems provide various ecosystem services in the form of natural resources, life support services, aesthetical values and comfort.The key ecosystems providing those services include estuaries, mangroves, coral reefs and seagrass beds.Some ecosystem services provided by the key coastal ecosystems function as producers, life supporters, wave absorbers, litter provider for detritus and decomposers, and carbon cycles regulator in the ecosystem. Though their roles are vital for Jakarta bay and its surrounding areas, ecosystem service aspect in Jakarta Bay is understudied. The previous limited studies focused mostly on economics valuation aspect and descriptive studies, ignoring the modeling and mapping aspects of the ecosystem services. InVEST (Integrated Valuation of Ecosystem Services and Tradeoffs) is a tool to map and model ecosystem services in an explicitly spatial representation.InVEST can be used to map and model changes in ecosystem servicess that will be affected by...

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Status Baku Mutu Air Laut untuk Kehidupan Biota dan Indeks Pencemaran Perairan di Pesisir Cirebon pada Musim Kemarau [Water Quality Standards for Marine Life and Pollution Index in Cirebon Coastal Area in the Dry Season]

Jurnal Ilmiah Perikanan dan Kelautan, 2019

Coastal land that is adjacent to the sea are still is influenced by the tide. Cirebon coast gener... more Coastal land that is adjacent to the sea are still is influenced by the tide. Cirebon coast generally have ramps and high turbidity due to sediment supply and waste from the river that empties into the sea. Cirebon coast is divided into two areas, namely governance City of cirebon and Regency of cirebon. Coastal conditions closely related to river, estuaries, and the ocean in the region, the changing nature of the river caused by human activities will affect the water quality and coastal environment. Environmental pollution occurs mainly in the fisherman areas and industry. Determination of contamination status was determined using the pollution index according to equation 1 Sumiotomo and Nerow (1970) in the Minister of the Environment decree No. 115 of 2003 on Guidelines for Determination of Water Quality Status. Criteria for determining the level of water quality based on water quality standards for marine life by the Minister of Environment Decree No. 51 of 2004. The methods of r...

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Stok Karbon Dan Struktur Komunitas Mangrove Sebagai Blue Carbon DI Tanjung Lesung, Banten

Jurnal Segara, 2015

Mangrove merupakan salah satu parameter Blue Carbon, karena perannya dalam memanfaatkan CO 2 untu... more Mangrove merupakan salah satu parameter Blue Carbon, karena perannya dalam memanfaatkan CO 2 untuk fotosintesis dan menyimpannya dalam bentuk biomassa dan sedimen. Pembangunan ekonomi sering berdampak terhadap lingkungan seperti konversi hutan mangrove menjadi tambak dan kawasan pariwisata. Penetapan Teluk Miskam di Tanjung Lesung sebagai salah satu Kawasan Ekonomi Khusus untuk kawasan pertumbuhan pariwisata menjadikan daerah tersebut rentan pemanfaatan berlebih yang dapat menimbulkan kerusakan lingkungan. Atas dasar tersebut, maka dilakukan penelitian untuk mengkaji struktur komunitas mangrove dan keberadaan karbon stok kondisi terkini. Penelitian dilakukan pada 8-12 April 2013. Metode pengambilan data mangrove yaitu dengan menarik garis transek dan kuadrat. Penentuan biomassa mangrove melalui Diameter Breast Height (DBH) dan persamaan allometrik sedangkan kandungan karbon mangrove dan sedimen menggunakan CN analysis. Analisis struktur komunitas menggunakan Indeks Shannon-Wiener. Hasil penelitian menunjukkan bahwa nilai simpanan karbon pada mangrove di Teluk Miskam adalah sebesar 49,44-55,33 MgC ha-1 untuk jenis Avicennia marina dan 2,50 MgC ha-1 untuk jenis Bruguiera gymnorhiza. Secara umum, karakteristik sedimen mangrove di Teluk Miskam berlumpur dan berbau. Kandungan karbon dalam sedimen berkisar antara 0,78-9,51% atau 4,43-27,92 MgC ha-1. Simpanan karbon yang besar dalam sedimen berada pada kedalaman 50 m (stasiun 1) dan 40 m (stasiun 2), yaitu masing-masing sebesar 23,26 dan 27,92 MgC ha-1 .

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Sedimentary seagrass carbon stock and sources of organic carbon across contrasting seagrass meadows in Indonesia

Environmental Science and Pollution Research

Seagrass meadows are an important component of coastal ecosystems globally, and they capture and ... more Seagrass meadows are an important component of coastal ecosystems globally, and they capture and store organic carbon in living biomass and sediments. Geographical estimates of blue carbon in seagrass habitats are regionally biased, with limited information from the Indo-Pacific region, including Indonesia. Seagrass extent in Indonesia is declining rapidly, and it has been suggested that marine protected areas (MPAs) are an important instrument to support protection of seagrass ecosystems and their services. Thus, this study is aimed at quantifying and comparing sedimentary carbon stocks and sources of organic carbon from seagrass meadows located in undisturbed areas outside MPA, disturbed areas outside MPA, and within MPA in three small islands in Indonesia. The sediment carbon stocks from this study ranged from 19.81 to 117.49 Mg C ha−1, with the highest stock measured inside MPA (77.15 ± 1.38 Mg C ha−1), followed by undisturbed outside MPA (36.08 Mg C ha−1), and the lowest stock ...

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The role of seagrass ecosystem in small islands as a blue carbon in climate change mitigation in Indonesia (case study: Lembeh Island, Bitung Regency)

IOP Conference Series: Earth and Environmental Science, 2021

Climate change phenomenon has occurred equally and globally all over the world during the last ce... more Climate change phenomenon has occurred equally and globally all over the world during the last century, including Indonesia, which known as an archipelagic country with more than 17.000 islands, where most of the island considered as small islands. Lembeh Island known by its high biodiversity in marine resources, especially coral reef which associated with other coastal ecosystems such as mangrove and seagrasses and create a healthy environment. Seagrasses as a blue carbon ecosystem can be functioned as a carbon absorber from the atmosphere and storage in the sediment, and supported the climate change mitigation act in Indonesia. Based on field observation, Lembeh Island region has seven species from possible twelve seagrass species found in Indonesia. Enhalus acoroides and Thalassia Hemprichii dominated the seagrass existence in Lembeh Island with certain characteristics live in a sandy substrate, muddy area or coral reefs. Seagrass in Lembeh Island has potency on biomass carbon as...

Distribution of marine debris in Jakarta Bay and its implication to the coastal ecosystem

IOP Conference Series: Earth and Environmental Science, 2021

Citarum River, which ended up in Muaragembong, Bekasi Regency-West Java Province, is known recent... more Citarum River, which ended up in Muaragembong, Bekasi Regency-West Java Province, is known recently as one of the most polluted rivers globally, including pollution caused by plastic litter. This research was conducted in the surrounding river, estuary, and mangrove ecosystem in Muaragembong, which aimed to determine macro debris and analyze its impact on the coastal ecosystem. Marine debris sampling in the mangrove ecosystem was done by line transect, while the net using for marine debris sampling surrounding river and estuary. The result showed that debris composition in Muaragembong consisted of 80% inorganic and 20% organic, where plastic debris dominated with 50-81% and was distributed throughout the estuary and mangrove ecosystem. The highest density was found in the mangrove ecosystem in the Kali Mati Estuary (Pantai Sederhana Village) with 222.67 waste/m2, while the heaviest waste was found in the Bendera Estuary (Pantai Bahagia Village) 4,663.64 grams/m2. This condition exp...

Analysis Of Shoreline Changes Of Bengkalis Island

Proceedings of the International Seminar (Industrialization of Fisheries and Marine Resources, FA... more

Assessing Carbon Stock and Sequestration of the Tropical Seagrass Meadows in Indonesia

Ocean Science Journal, 2020

Seagrass meadows provide critical ecosystem services for coastal areas, e.g., as nursery habitats... more Seagrass meadows provide critical ecosystem services for coastal areas, e.g., as nursery habitats for various fish species, help with water filtration of suspended sediment, and provide food for dugongs (Dugong dugon). Their role as "blue carbon" and their capacity to mitigate climate change, by means of Natural mechanism of Carbon Dioxide Removal (NCDR) from the atmosphere, has recently gained increased attention. However, available scientific methods such as guidelines and manuals to measure carbon stock and sequestration still rely heavily on field sampling activities and laboratory analyses. Despite their accuracy, neither of these methods are applicable for large-scale carbon inventories nor are they practical in areas with limited carbon-related data and laboratory resources. Thus, it is necessary to determine whether any of the seagrass-related variables (e.g., coverage, density and biomass) may be treated as a proxy that are both robust and practical to assess the capacity of seagrass to store and sequester carbon. We developed formulas, assessed their robustness, and used both the formulas and the proxy to estimate carbon stock and the sequestration potential of the seagrasses. Furthermore, this study aims to elucidate the carbon stock and sequestration potential capacity of the seagrass ecosystems in Indonesia. We used the data of seagrass-and carbon-related variables obtained from eleven study sites and developed several candidate formulas using the Robust Linear Mixed Models (rLMMs). We found that the best formulas are comprised of multiple seagrassrelated variables that consistently include biomass and coverage. This suggests that a combination of biomass and coverage is the best proxy to estimate carbon stock; however, a single proxy of seagrass coverage is recommended for practical seagrass monitoring purposes by the local government. Estimations of carbon stock and sequestration subsequently follow the formulas in the present study. Here we estimated, using a single proxy of seagrass coverage, that the above-and below-ground carbon stock, and carbon sequestration capacity of seagrass ecosystems in Indonesia reached 80-314 ktC, 196-696 ktC, and 1.6-7.4 MtC/year, respectively.

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Seagrass Ecosystem Carbon Stock In The Small Islands: Case Study In Spermonde Island, South Sulawesi, Indonesia

Jurnal Segara, 2017

Small islands are particularly rich with coral reefs and seagrass ecosystems and coastal plants. ... more Small islands are particularly rich with coral reefs and seagrass ecosystems and coastal plants. Seagrass is one of the coastal ecosystems of blue carbon, which is capable of storing utilize and store CO2 in the form of organic carbon in biomass and sediment. The purpose of this study to get the carbon stock of seagrass and its role in climate change. The survey method with sampling purposive sampling representing all research sites and analyzed the amount of carbon contained in biomass and sediment. The result showed that there were eight species of seagrass found, and the highest carbon stock on the type Enhalus acoroides at Kapoposang island was 1.64 MgC / ha. The average value of the total biomass of carbon stock in the island's largest seagrass Bauluang island was 1.89 ± 0.92 Mg C / ha with the largest at the ground below 77% of total carbon biomass. Carbon stock in sediments of seagrass ecosystems average of 531.87 ± 74.08 Mg C / ha up to a depth of 50 cm. The role of s...

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Simulasi Daya Dukung Lingkungan DI Pulau Gili Ketapang – Probolinggo Dengan Mengandalkan Curah Hujan Sebagai Pemenuhan Kebutuhan Air

Jurnal Kelautan Nasional, 2019

Hujan merupakan salah satu sumberdaya air yang penting bagi kehidupan manusia. Keseimbangan lingk... more Hujan merupakan salah satu sumberdaya air yang penting bagi kehidupan manusia. Keseimbangan lingkungan dapat diketahui dari ketersediaan sumber air yang berguna untuk memenuhi kebutuhan masyarakat. Daya dukung lingkungan adalah kemampuan lingkungan untuk menunjang kehidupan manusia dan makhluk hidup lainnya. Salah satu cara menentukan daya dukung lingkungan adalah dengan pendekatan ketersediaan dan kebutuhan air. Tujuan dari penelitian ini adalah melakukan simulasi terhadap status daya dukung lingkungan berdasarkan ketersediaan air bulanan dari curah hujan dan kebutuhan air di Pulau Gili Ketapang-Probolionggo dalam satu tahun. Metode yang digunakan untuk mengetahui daya dukung lingkungan adalah analisis kuantitatif melalui perbandingan antara penghitungan ketersediaan air dan kebutuhan air. Hasil penghitungan status daya dukung lingkungan berdasarkan ketersediaan air dan kebutuhan air di Gili Ketapang apabila dihitung berdasarkan kebutuhan layak air minum 130 liter/orang/hari adalah...

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Conditions of Kejawanan Beach Based on Standard Quality and Suitability for Pollution Index Marine Tourism Area

Jurnal ILMU DASAR, 2014

Kejawanan tourist beach is one beach which is located in West Java. This beach is located side to... more Kejawanan tourist beach is one beach which is located in West Java. This beach is located side to the Kejawanan fishing port. Kejawanan beach topography sloping beach with quiet waters and the waves are not too big. The dominant wind direction throughout the year that influencet the formation of ocean waves are heading toward the bay coast of Cirebon. The existence tourist beach that is located near to the fishing port crowded with activity interesting to known the conditions coast as marine tourism area based on Water quality standars according to Decree of The Minister of Environment Number 51 of 2004. Pollution indeks is based on Decree of The Minister of Environment Number 115 of 2003. Indication of biological contamination by Diversity index of makrobentic animal. The results of the research obtained Water quality standard for marine tourism area mostly exceeded. Pollution index is at the level Heavy pollution. Diversity index of macrobentic animal are at the level of Medium Po...

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Mapping Of Coastal Vulnerability Index Due To Climate Change In West Sumatera And Its Surroundings

Jurnal Segara, 2012

Coastal areas are the strategic areas for West Sumatra, geographically West Sumatra has a coastli... more Coastal areas are the strategic areas for West Sumatra, geographically West Sumatra has a coastline lenght of 2,159 km. The number of people living in the district / city coastal of West Sumatra is 2,629,052. Climate change in recent decades led to rising sea levels. This makes the region vulnerable coastal areas to be used as a development activity. Therefore we need a study to determine the level of vulnerability of the coastal region to sea level rise. The method used in this study is by using Geographic Information System (GIS) tools to determine a Coastal Vulnerability Index based on the modification of which has been developed by the United States Geological Surveys. Result of seven coastal areas of West Sumatera that are studied, the percentage of vulnerability index obtained as follows: 23.82% is very low index, 68.59% is low index, 5.79% is medium index, 0.95% is high index and 0.85% is very high index.

Pendugaan Akuifer Airtanah DI Pesisir Pulau Solor, Nusa Tenggara Timur

Jurnal Segara, 2015

Telah dilakukan penelitian geofisika dengan metode Geolistrik 2D konfigurasi wenner untuk penduga... more Telah dilakukan penelitian geofisika dengan metode Geolistrik 2D konfigurasi wenner untuk pendugaan keberadaan akuifer di desa Tanalein Pulau Solor NTT. Data Geolistrik 2D ditampilkan dalam bentuk 4 lintasan penampang geolistrik dan digunakan untuk melihat pendugaan akuifer di daerah penelitian. Keberadaan akuifer diduga terdapat pada lintasan GL-01 dan GL-03 terdapat pada kedalaman 50 – 70 meter dari pemukaan tanah dan berada pada 300 - 320 meter dari ujung lintasan (baratlaut), akuifer airtanah ini diindikasikan oleh adanya struktur dan litologi dari akuifernya berupa lapukan breksi

Water Quality Standards For Port Area And Water Pollution Index In Fisheries Port Kejawanan, Cirebon

Jurnal Saintek Perikanan, Aug 25, 2013

secara administratif terletak di wilayah Kota Cirebon. Pelabuhan ini merupakan salah satu Unit Pe... more secara administratif terletak di wilayah Kota Cirebon. Pelabuhan ini merupakan salah satu Unit Pelaksana Teknis dari Direktorat Jenderal Perikanan Tangkap, Kementerian Kelautan dan Perikanan yang sangat penting peranannya dalam mendukung program industrialisasi perikanan di Cirebon. Aktivitas pelabuhan perikanan yang cukup ramai dengan berbagai kegiatannya antara lain aktivitas bongkar ikan, perbengkelan serta posisinya yang dekat dengan sungai dan terdapat berbagai pabrik pengolahan ikan tentunya akan menimbulkan dampak terhadap kualitas airnya. Penelitian ini bertujuan untuk mengetahui kesesuaian baku mutu air laut untuk pelabuhan serta untuk mengetahui indeks pencemaran yang terjadi. Metode yang digunakan dalam penelitian ini pada dasarnya secara kuantitatif dimana pengumpulan data yang dilakukan dengan pengukuran kualitas air menggunakan Water quality cheker, identifikasi laboratorium untuk sedimen dan air. Hasil yang diperoleh pada penelitian ini ternyata kondisi kolam Pelabuhan Perikanan Nusantara Kejawanan dalam kondisi tercemar sedang, dimana parameter pH dan Seng berada diatas ambang batas baku mutu yang disyaratkan.

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Peran Ekosistem Lamun Sebagai Blue Carbon Dalam Mitigasi Perubahan Iklim, Studi Kasus Tanjung Lesung, Banten

Jurnal Segara, 2015

Lamun merupakan tanaman yang dapat menyimpan karbon dalam bentuk biomasa dan di sedimen yang dike... more Lamun merupakan tanaman yang dapat menyimpan karbon dalam bentuk biomasa dan di sedimen yang dikenal dengan karbon biru. Penelitian peranan lamun sebagai karbon biru dalam mitigasi perubahan iklim dilakukan pada 8 – 12 April 2013 di perairan pesisir Teluk Miskam, Tanjung Lesung, Banten dengan tujuan untuk mengetahui keberadaan padang lamun dan potensinya sebagai blue carbon. Pengambilan sampel dilakukan secara purposive sampling terkait dengan keberadaan ekosistem padang lamun. Pengambilan data meliputi pengukuran prosentase tutupan lamun, kerapatan dan biomassa berdasarkan berat basah, berat kering serta analisa kandungan karbon di laboratorium. Biomassa yang terukur dibagi dua yaitu bagian atas (above ground/abg) dan bagian bawah (below ground/bg). Hasil menunjukkan bahwa terdapat tujuh jenis lamun yang berasal dari dua famili. Famili Hydrocharitaceae terdiri dari tiga jenis yaitu Enhalus acoroides (Ea), Thalassia hemprichii (Th) dan Halophila ovalis (Ho). Empat jenis dari famili Cymodoceaceae yaitu Cymodocea serrulata (Cs), Cymodocea rotundata (Cr), Halodule uninervis (Hu) dan Syringodium isoetifolium (Si). Kisaran prosentase tutupan lamun adalah 2% - 80%, kerapatan berkisar antara 34 – 761 tunas m-2. Stok karbon biomasa lamun adalah sebesar 1,32 MgC ha-1. Nilai karbon yang terkandung dalam sedimen terbesar tercatat pada sedimen padang lamun Ea dengan nilai sekitar 171,72 MgC ha-1. Dari hasil penelitian yang diperoleh disimpulkan bahwa lamun yang berperan besar sebagai blue carbon yaitu Ea, Cs dan Si dengan Ea dengan nilai berturut adalah sebesar 0,4 MgC ha-1, Cs 0,12 MgC ha-1 dan Si 0,07 MgC ha-1. Kata kunci:

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