scholarly journals Keanekaragaman Jenis Dan Dominansi Mangrove Di Pesisir Pantai Desa Sehati Kecamatan Amahai, Kabupaten Maluku Tengah

2020 ◽  
Vol 8 (2) ◽  
pp. 160
Author(s):  
PATRICIA SIPAHELUT ◽  
D WAKANO ◽  
D E SAHERTIAN
Keyword(s):  
Species Diversity ◽  
Coastal Waters ◽  
Marine Biota ◽  
Mangrove Species ◽  
Species Dominance ◽  
Nypa Fruticans ◽  
Sonneratia Alba ◽  
Bruguiera Gymnorhiza ◽  
Bruguiera Cylindrica ◽  
The Tropics

Geographically, Indonesia is in the tropics. This causes Indonesian waters to become increasingly rich in various types of marine biota which must be found in coastal waters. Coastal waters are places where various ecosystems with high organic productivity are found, one of which is mangrove. Mangroves are plants that live in coastal areas whose lives are always influenced by tidal currents. This study will explain how the diversity of mangroves and how the dominance of mangrove species on the coast of Sehati Village, Amahai District, Central Maluku Regency. This research was conducted to determine the species diversity and dominance of mangrove species. So that the results of this study show that in the coastal waters of Desa Sehati, Amahai Subdistrict, Central Maluku Regency, 5 mangrove species were found, namely Rhizophora mucronata, Bruguiera cylindrica, Bruguiera gymnorhiza, Sonneratia alba and Nypa fruticans which were members of 2 classes (Magnoliopsida and Liliopsida), 2 orders (Myrtales and Arecales), 3 families (Rhizophoraceae, Sonneratiaceae and Arecaceae), and 4 genera (Rhizophora, Bruguiera, Sonneratia and Nypa) with medium species diversity indexes and low species dominance. Key Words: Mangrove, Species Diversity, Species Dominance

scholarly journals Struktur Komunitas, Cadangan Karbon, dan Estimasi Nilai Ekonomi Mangrove di Muara Sungai Musi

2021 ◽  
Vol 26 (2) ◽  
pp. 228-234
Author(s):  
Harum Farahisah ◽  
Fredinan Yulianda ◽  
Hefni Effendi
Keyword(s):  
Ecosystem Services ◽  
Carbon Storage ◽  
Free Market ◽  
Economic Value ◽  
River Estuary ◽  
Carbon Dioxide Absorption ◽  
Mangrove Species ◽  
Nypa Fruticans ◽  
Sonneratia Alba ◽  
Musi River

Mangrove ecosystem services, aside for the fisheries sector, also have ecosystem services in mitigating climate change as carbon sinks and storage. Musi river estuary located in Banyuasin Regency, South Sumatra has the potential of mangrove forests as carbon reserves. The purpose of the study is to analyze the community structure, potential carbon stocks, and economic value of mangroves in the Musi River Estuary. Data were collected at five stations using the 100 m quadratic transect method vertically to the coastline. Data analysis was conducted based on the allometric equation for biomass information, carbon storage, and the economic value of carbon stores. Mangrove ecosystems in the Musi River estuary are Sonneratia alba, Nypa fruticans, Sonneratia casiolaris, and Rhizopora apiculata. Mangrove species that have important roles in the sustainability of ecosystems are Nypa fruticans and Sonneratia alba each with IVI of 145.6 and 101.28, respectively. Carbon storage of mangrove in the Musi river estuary is 107.34 tonC / ha and carbon dioxide absorption is 393.59 tCO2 / ha with a mangrove area of ± 5276 ha. The total estimated economic value of carbon generated from mangrove are Rp174.441.016.895 (free market) and Rp455.872.524.151 (CDM). Keywords: carbon, mangrove, Musi river estuary

scholarly journals KONDISI HUTAN BAKAU TEBANGAN MASYARAKAT DAN INDUSTRI PULP DI BATU AMPAR KALIMANTAN BARAT

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Tjut Sugandawaty Djohan ◽  
P.M. Laksono ◽  
Esti Anantasari ◽  
Angga N. Utama ◽  
Krisni Suhesthiningsih
Keyword(s):  
Species Diversity ◽  
Mangrove Forest ◽  
River Estuary ◽  
Local People ◽  
Mangrove Species ◽  
Pulp Industry ◽  
Mangrove Tree ◽  
Rhizophora Apiculata ◽  
Bruguiera Gymnorhiza ◽  
Tree Cutting

The purpose of this research was to study tree cutting of mangrove forest by the local people of Batu Ampar and the pulp industry at Kapuas river estuary. At each site the rapid measurement methods were established using quadrate plots of 20m x 20m and 5m x 5m, each with 2 replicates. The results revealed that the local people only cut the selective trees of Rhizophora apiculata and Bruguiera gymnorhiza with diameter of 20-25 cm2 at 0.25 ha wide, which created gap canopy as small disturbace to the mangrove forest. This area of gap canopy immediately was colonized and dominated by R. apiculata. The mangrove tree cuttings created the phase gap generations. This forest recovered quickly, thus the small distrurbance maintained the mangrove tree species diversity. The Rhizophora roots were habitat for nusery grown of larval shrimps, crabs, and fishes. The pulp industry cut all of the mangrove species wich created big disturbance and huge gap area. The forest also recovered quickly, but was dominated by Xylocarpus granatum. Thus, the big disturbance by the pulp industry caused the shifted species of the mangrove forest species from Rhizophora and Bruguiera to Xylocarpus. The roots of Xylocarpus tree were not habitat forthelarval shrimps, crabs, and fishes, which decreased the fisherman catch. The forest rehabilitation of industrial cutting was planted regularly with Rhizophora, and created many current canals which proned to the erosion. Thus the pulp industry of mangrove forest cutting threatened nursery habitat and species diversity at the mangrove forest of Batu Ampar.

scholarly journals KEANEKARAGAMAN MANGROVE DI DESA GEDANGAN, KECAMATAN PURWODADI, KABUPATEN PURWOREJO, JAWA TENGAH

2018 ◽  
Vol 14 (1) ◽  
pp. 62
Author(s):  
Slamet Mardiyanto Rahayu ◽  
Syuhriatin Syuhriatin ◽  
Wiryanto Wiryanto
Keyword(s):  
Sampling Methods ◽  
Rhizophora Mucronata ◽  
Mangrove Species ◽  
Mangrove Plant ◽  
Central Java ◽  
Nypa Fruticans ◽  
Acanthus Ilicifolius ◽  
Sonneratia Alba ◽  
Lower Plants ◽  
Environment Condition

This research aims to know the diversity of mangrove in Gedangan Village, Purwodadi Subdistrict, Purworejo Regency, Central Java. This research conducted on June-September 2016 with purposive sampling methods with three station. Based on the results of the research are nine mangrove species found are rhizophora mucronata, sonneratia alba, nypa fruticans, hibiscus tiliaceus, ipomoea pescaprae, acanthus ilicifolius, gymnanthera paludosa, wedelia biflora, and scirpus sp. Diversity of tree mangrove are low (H’ station 2=0,95 and H’ station 3= 0,15). Diversity of sapling mangrove are low with H’ in station 1, 2, and 3 are 0,2; 0,68; dan 0,08. And the diversity of mangrove seedling and lower plants are medium with H’ in station 1, 2, and 3 are 1,17; 1,56; and 1,48. Environment condition in all station is relatively good to support the life of mangrove plant. That is temperature  28-30 0C; pH 7-8; DO 4,0-6,5 mg/l; salinity 6-9 ppt; and sandy mud substrate.

scholarly journals Keanekaragaman dan Kerapatan Jenis Mangrove di Desa Kase Kecamatan Leksula Kabupaten Buru Selatan

2020 ◽  
Vol 7 (1) ◽  
pp. 1055
Author(s):  
Efraim Samson ◽  
Vergenia Sigmarlatu ◽  
Deli Wakano
Keyword(s):  
Diversity Index ◽  
Line Transect ◽  
Mangrove Species ◽  
Mangrove Area ◽  
Rhizophora Apiculata ◽  
Index Analysis ◽  
Sonneratia Alba ◽  
Bruguiera Gymnorhiza ◽  
Density Values ◽  
Line Transect Method

This study aims to determine the diversity and density of mangrove vegetation in Kase Village, Leksula Subdistrict, South Buru Regency. The study uses the line transect method with several observation plots that are stratified. A total of 20 transects were placed at the study site with the size of each plot, namely for seedling level, which is 2 x 2 m, while for the level of a sapling, namely 5 x 5 m and for the level of trees, which is 10 x 10 m. The results showed that in the mangrove area in Kase Village, Leksula Subdistrict, South Buru Regency, 3 mangrove species were found, namely Rhizophora apiculata, Bruguiera gymnorhiza, and Sonneratia alba, which belong to two families (Rhizophoraceae, Sonneratiaceae) and 3 genera, (Rhizophora, Bruguiera, Sonneratia). The total number of mangrove individuals, that is 699 individuals from 419 levels of seedlings, 116 levels of a sapling, and 164 levels of trees. The species with the highest density and relative density values at the level of tree growth, namely Rhizophora apiculata, and at the level of sapling and seedlings, namely Bruguiera gymnorhiza. While Sonneratia alba, tends to have density values and species densities that tend to be low at all three growth rates. Furthermore, the results of the diversity index analysis in the mangrove area of Kase Village, Leksula Subdistrict, South Buru Regency, showed that the diversity of species (H´) mangroves for each growth level was 0.76 (seedlings); 0.82 (sapling); and 1.02 (trees), or classified as low to moderate category. Keywords: Mangrove, Diversity, Abundance, Kase Village  Abstrak Penelitian ini bertujuan untuk mengetahui keanekaragaman dan kerapatan jenis vegetasi mangrove di Desa Kase, Kecamatan Leksula Kabupaten Buru Selatan. Penelitian menggunakan metode line transect dengan beberapa plot pengamatan yang dibuat bertingkat. Sebanyak 20 transek ditempatkan pada lokasi penelitian dengan ukuran plot masing-masing, yakni untuk tingkat semai, yakni 2 x 2 m, sedangkan untuk tingkat anakan, yakni 5 x 5 m dan untuk tingkat pohon, yakni 10 x 10 m. Hasil penelitian menunjukkan bahwa pada area mangrove di Desa Kase Kecamatan Leksula Kabupaten Buru Selatan, ditemukan 3 spesies mangrove yakni Rhizophora apiculata, Bruguiera gymnorhiza, dan Sonneratia alba, yang tergolong ke dalam dua family (Rhizophoraceae, Sonneratiaceae) dan 3 genus, (Rhizophora, Bruguiera, Sonneratia). Jumlah total individu mangrove, yakni 699 individu yang terdiri dari 419 tingkat semai, 116 tingkat anakan, dan 164 tingkat pohon. Spesies dengan nilai kerapatan dan kerapatan relatif tertinggi pada tingkat pertumbuhan pohon, yakni Rhizophora apiculata, dan pada tingkat anakan serta semai, yakni Bruguiera gymnorhiza. Sedangkan Sonneratia alba, cenderung memiliki nilai kerapatan dan kerapatan jenis yang cenderung rendah pada ketiga tingkat pertumbuhan tersebut. Kemudian, hasil analisis indeks keanekaragaman di area mangrove Desa Kase Kecamatan Leksula Kabupaten Buru Selatan, menunjukan bahwa keanekaragaman jenis (H´) mangrove untuk masing-masing tingkat pertumbuhan, yakni 0.76 (semai); 0.82 (anakan); dan 1.02 (pohon), atau tergolong kategori rendah hingga sedang.                                                      Kata Kunci: Mangrove, Keanekaragaman, Kerapatan, Desa Kase

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 Diversity of Mangrove In Gedangan Village Purwodadi Subdistrict Purworejo Regency Central Java

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Slamet Mardiyanto Rahayu ◽  
Syuhriatin Syuhriatin ◽  
Wiryanto Wiryanto
Keyword(s):  
Sampling Methods ◽  
Rhizophora Mucronata ◽  
Mangrove Species ◽  
Purposive Sampling ◽  
Central Java ◽  
Nypa Fruticans ◽  
Acanthus Ilicifolius ◽  
Sonneratia Alba ◽  
Lower Plants ◽  
Environment Condition

This research aims to know diversity of mangrove in Gedangan Village, Purwodadi Subdistrict, Purworejo Regency, Central Java. This research conducted on June-September 2016 with purposive sampling methods with three station. Based on the results of the research are nine mangrove species found are: Rhizophora mucronata, Sonneratia alba, Nypa fruticans, Hibiscus tiliaceus, Ipomoea pescaprae, Acanthus ilicifolius, Gymnanthera paludosa, Wedelia biflora, and Scirpus sp. Diversity of tree mangrove are low (H’ station 2=0,95 and H’ station 3= 0,15). Diversity of sapling mangrove are low with H’ in station 1, 2, and 3 are 0,2; 0,68; dan 0,08. And diversity of mangrove seedling and lower plants are medium with H’ in station 1, 2, and 3 are 1,17; 1,56; and 1,48. Environment condition in all station is relatively good to support live of mangrove plant.That is temperature  28-30°C, pH 7-8, DO 4,0-6,5 mg/l, salinity 6-9 ppt, and sandy mud substrat.

scholarly journals Struktur komunitas mangrove di Pulau Mare, Kota Tidore Kepulauan, Provinsi Maluku Utara (Community structure of mangrove in Mare Island, Tidore City, Maluka Utara Province

DEPIK ◽  
2016 ◽  
Vol 5 (3) ◽  
Author(s):  
Nebuchadnezzar Akbar ◽  
Abdurrachman Baksir ◽  
Irmalita Tahir ◽  
Dondy Arafat
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Line Transect ◽  
Mangrove Species ◽  
Ecological Index ◽  
Sonneratia Alba

This study aimed to obtain information mangrove ecological index in Mare Island, Tidore Kepulauan, North Maluku. Collecting data in 2015, divided into three locations were determined based representation and the representation of mangrove. The sampling of mangrove using "line transect quadrant". The results obtained by mangrove thickness between 85-150 meters with 5 types of 3 families mangrove. Rhizophora mangrove species are found most dominating every station. Mangrove ecological index categories density, frequency, cover and species diversity is highest at the station I. While important value criteria at each station are 300. Analysis of vegetation mangrove species at each station obtained density, frequency, species diversity and the importance of the highest species is Rhizophora apicullata, then cover the highest species is Sonneratia alba. Overall results of observation and analysis, illustrating that the condition of mangroves on the island of Mare in the category of low/sparse.Penelitian ini bertujuan untuk memperoleh informasi indeks ekologi mangrove di Pulau Mare, Tidore Kepulauan, Maluku Utara. Pengambilan data pada tahun 2015 yang terbagi atas tiga lokasi yang ditetapkan berdasarkan keterwakilan dan reprsentasi mangrove. Pengambilan contoh mangrove, di lakukan dengan menggunakan metode “line transect quadrant”. Hasil penelitian diperoleh ketebalan mangrove diantara 85-150 meter  dengan 5 jenis dari 3 famili mangrove. Jenis mangrove Rhizophora ditemukan paling mendominasi disetiap stasiun. Indeks ekologi mangrove kategori kerapatan, frekuensi, tutupan dan keanekaragaman jenis paling tinggi terdapat di stasiun satu. Sedangkan kriteria nilai penting pada setiap stasiun adalah 300. Analisis vegetasi jenis mangrove pada setiap stasiun diperoleh kerapatan, frekuensi, keanekaragaman jenis dan nilai penting jenis tertinggi adalah Rhizophora apicullata, kemudian tutupan jenis tertinggi adalah Sonneratia alba. Keseluruhan hasil pengamatan dan analisis, menggambarkan bahwa kondisi mangrove di pulau Mare masuk dalam kategori rendah. 

scholarly journals Impact of Nypa Palm (Nypa fruticans Wurmb) and Mangroves Forest on Benthic Macro Invertebrate Community in Andoni River, Nigeria

2020 ◽  
Vol 77 ◽  
pp. 51-62
Author(s):  
Udi O. Emoyoma ◽  
Aroloye O. Numbere ◽  
Godfrey N. Woke
Keyword(s):  
Reproductive Function ◽  
Open Water ◽  
Quality Parameters ◽  
Invertebrate Community ◽  
Mangrove Species ◽  
Mean Values ◽  
Species Dominance ◽  
Nypa Fruticans ◽  
Significant Difference ◽  
The Impact

It is postulated that the presence of nypa palm (Nypa palm) in mangrove forest affect the reproductive function of fish by inhibiting the growth of macro invertebrates. The impact of Nypa fruticans (Wurmb) and mangroves on the benthic macro invertebrate community of Andoni River was carried out between January and August, 2017. A total of four stations were chosen based on nypa palm and native mangrove species’ presence and absence, station 1 (Open water), Station 2 (Nypa palm dominance), station 3 (Rhizophora and Avicennia dominance), Station 4 (Mixed). Results of water quality parameters include; pH 6.99±0.16, Temperature 28.20±0.05°C, DO 4.71±0.18mg/L, Conductivity 19.52±0.20µm/s, Salinity 10.76±0.07ppt, TDS 13.45±0.27ppt. Mean values of the physico-chemical parameters (P > 0.05) were not significantly different. Twelve taxa of benthic macro-invertebrates in eleven families were collected. The crustaceans were more in diversity (38.46%), while bivalvia, pisces and oligochaete had the least percentage composition (7.69%). The gastropods were more in species dominance (44.69%), while the Oligochaeta were least in abundance (0.61%). Shannon Weiner’s index across the stations for benthos was highest in station 2 (1.840) and lowest in station 1 (1.103). Simpson’s index was highest in station 2 (1.990) and lowest in station 1 (1.938). Pielou’s index of evenness was highest in station 2 (0.767) and lowest in station 1 (0.616). All the macro-invertebrates recorded were clean water and pollution tolerant species, and showed no significant difference across stations (P>0.05). In conclusion this study indicates that nypa palm does not affect the proliferation of macro invertebrates, which supports fishery population along the food chain.

River Water Salinity and the Distribution of Mangrove Species Along Several Rivers in North Queensland

1982 ◽  
Vol 30 (4) ◽  
pp. 401 ◽  
Author(s):  
JS Bunt ◽  
WT Williams ◽  
HJ Clay
Keyword(s):  
River Water ◽  
Sea Water ◽  
Water Salinity ◽  
Mangrove Species ◽  
Rhizophora Stylosa ◽  
Excoecaria Agallocha ◽  
Nypa Fruticans ◽  
Sonneratia Caseolaris ◽  
Sonneratia Alba ◽  
Major Factors

It is well recognized that salinity is one of the major factors influencing the vegetation of mangrove swamps. Nonetheless, knowledge of the limits of salinity tolerance is limited to a relatively few species. Accordingly, observations were undertaken of the distributions of a number of mangrove species in a set of tidal rivers in northern Queensland. River water salinity measurements were used as the frame of reference to the observations. To the extent that generalizations are possible, tolerance of or adaptation to sea water appeared to lie in a series as follows: Rhizophora stylosa; R . apiculata; Sonneratia alba; Ceriops tagal > Aegiceras corniculatum; Bruguiera parviflora > Excoecaria agallocha; Rhizophora mucronata > Acrostichum sp.; Heritiera littoralis; Nypa fruticans > Barringtonia sp.; Bruguiera sexangula; Sonneratia caseolaris; (Hibiscus tiliaceus).

scholarly journals Struktur Komunitas Mangrove Pesisir Pantai Desa Dalapuli Barat, Bolaang Mongondow Utara

2018 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
Nurul Auliyah ◽  
Agus Blongkod
Keyword(s):  
Mangrove Forests ◽  
Sample Plot ◽  
Mangrove Species ◽  
Nypa Fruticans ◽  
Sonneratia Alba ◽  
High Regeneration ◽  
Acanthus Ebracteatus ◽  
Tree Index ◽  
Index Value ◽  
The Right

Mangrove is one of vegetation on coastal where very important. The aim of research is to know the structure of community of mangrove forests in Dalapuli Barat Village Pinogaluman Sub-district, Bolaang Mongondow Utara District. The method to take the sample in this research is transek square method. The first sample plot is on the left of the path axis and the second sample plot is on the right of the path axis and then alternates. Sampling growth of 2 m x 2 m for the seedling phase, ie regeneration of trees that begin to increase until the power <1.5 m. Example plots are 5 m x 5 m for the stake, ie high regeneration> 1.5 m up to <10 cm in diameter, and. The sample plot is 10 m x 10m for the tree phase, ie trees having a diameter of more than 10 cm. The results of this study are: 8 species of mangrove species are found in Rhyzopora apiculata, Xylocarpus granatum, Cheriops tag, Sonneratia alba, Nypa fruticans, Lumnitzera littorea, pandanus techtorius, and Acanthus ebracteatus The essential tree index value (INP) is 302, Pancang is 302, (scale 0 - 300 and seedling level includes 313. Index diversity of analysis result is low. Keywords : Mangrove, Community, Dalapuli Village

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