Dampak alih fungsi hutan mangrove terhadap ekonomi masyarakat di Telaga Wasti Sowi IV Manokwari Papua Barat

Mangrove forest is a vegetation that grows in the estuary beaches and who has the function of ecological, biological, economic and social culture, but now its existence has been degraded by the use of a less appropriate or changing function. Research on the structure of mangrove forest vegetation in the Wasti Bay Sowi IV Manokwari District of Southern District Manokwari conducted in April 2018 with the aim to determine the structure of mangrove forest vegetation and utilization. The method used in this research is the approach of ecological (biological) and anthropological approach. From the analysis of vegetation, found as many as 8 species of mangrove plants. Rhizophora apiculata is the dominant species on the level of a tree with a Density Value of 784.66 Individuals/Ha with an Important Value Index (IVI) 50.06 followed Rhizophora mucronata with a Density Value of 770.34 Individuals/Ha with the Important Value Index (IVI) 41.01. At the level of belta Rhizophora mucronata is the dominant species with a Density Value of 385.66 Individuals/Ha with the Important Value Index (IVI) 45.13 then Rhizophora apiculata with a Density Value of 263.33 Individuals/Ha with the Important Value Index (IVI) 40.22. At the seedling stage Rhizophora mucronata a dominant species with a Density Value of 760.00 Individuals/Ha with the Important Value Index (IVI) 45.42 and Rhizophora apiculata had Density Value of 681.66 Individuals/Ha with the Important Value Index (IVI) 41.04. Based on interviews of 8 mangrove species found in the observation plot, 3 species used as building material, 6 species as a source of firewood, 3 species as drugs and 5 species for other purposes.

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The Study of Mangrove Reproductive Phenology in The Rhizophoraceae Family (Bruguiera gymnorrhiza (L.) Lamk., Ceriops tagal (Perr.) C.B. Rob., Rhizophora apiculata Blume. and Rhizophora mucronata Lamk.)

JURNAL BIOLOGI TROPIS ◽

10.29303/jbt.v20i3.2091 ◽

2020 ◽

Vol 20 (3) ◽

pp. 406

Author(s):

WD. Syarni Tala

Keyword(s):

Mangrove Forest ◽

Morphological Characteristics ◽

Forest Area ◽

Reproductive Phenology ◽

Rhizophora Mucronata ◽

Bruguiera Gymnorrhiza ◽

Flower Bud ◽

Mangrove Species ◽

Rhizophora Apiculata ◽

Ceriops Tagal

Kendari Bay is directly adjacent to the Kendari City area, so that it receives a lot of pressure mainly from community activities. This pressure causes the declining of mangrove forest area every year. Reproductive phenology of mangroves can be used in planning, collecting seeds, and seeding propagules for rehabilitation of degraded mangrove forest area. The aims of this research were to know the morphological characteristics of mangrove reprodutive organs and mangrove reproductive phenology of Bruguiera gymnorrhiza, Ceriops tagal, Rhizophora apiculata, and Rhizophora mucronata in Kendari Bay. The method using in this research was observation method that conducted directly in the field. Morphology and phenology of mangrove reproduction divided into 6 phases, i.e. flower bud, blooming flower, ovary, fruit, young propagule and mature propagule. The data was analysed descriptively. According to the result, the morphological characteristics of 4 mangrove species were different. Flower of B. gymnorrhiza was single, whereas flowers of C. tagal, R. apiculata and R. mucronata were inflorescences. Ovary of B. gymnorrhiza was hemi inferous, whereas ovaries of C. tagal, R. apiculata and R. mucronata were superous. R. mucronata had the largest propagule compared to other mangroves observed. The timing of mangrove reproductive phenology also showed different result. B. gymnorrhiza required 299 days to develop from flower bud to mature propagule and R. apiculata required 262 days, whereas C. tagal and R. mucronata had not been able known its phenological period because the timing data from ovary to fruit had not been obtained. Further research is needed to resolve this issue.

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Mangrove Biophysical Condition and Community’s Socio-economic Profile as Managers of Mangrove Forest in Tagpait, Aborlan and Bacungan Puerto Princesa City, Palawan, Philippines

International Journal of Science and Management Studies (IJSMS) ◽

10.51386/25815946/ijsms-v4i4p103 ◽

2021 ◽

pp. 27-36

Author(s):

Mark Joseph J. Buncag

Keyword(s):

Mangrove Forest ◽

Coastal Development ◽

Rhizophora Mucronata ◽

Mangrove Species ◽

Rhizophora Apiculata ◽

Marine Products ◽

Household Interview ◽

Tourism Activity ◽

Economic Profile ◽

Tourism Service

The mangrove forest in Tagpait, Aborlan, is being managed by the Indigenous Cultural Community (Tagbanua Tribe) through their organization, the Tagpait Coastal Development Association (TACDA). Bacungan Mangrove Eco-tourism Service Cooperative is managing the Bacungan mangrove forest. The area was engaged in tourism activity until now through paddle boating, floating restaurant, mangrove adventure. This study used the household interview to determine the socio-economic profile and quadrat to assess mangrove biophysical condition. Results show that Bacungan is more diverse, with a higher number of species present in the area with 13 mangrove species while eight in Tagpait. The most dominant mangrove species in Tagpait is Rhizophora apiculata (39%), while Rhizophora mucronata in Bacungan (22%). Most of the respondents in Tagpait are fishers, which about 20%, then 14% are involved in buy and sell of marine products, and 5% are engaged in the processing of marine products. In Bacungan, the majority are engaged in fishing livelihood (37%), 13% are involved in buy and sell of marine products, and 4% are engaged in the processing of marine products.

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KEANEKARAGAMAN JENIS MANGROVE DI DESA MENDALOK KECAMATAN SUNGAI KUNYIT KABUPATEN MEMPAWAH

JURNAL HUTAN LESTARI ◽

10.26418/jhl.v7i1.31251 ◽

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

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Potential Regeneration of Mangrove Coastal of Payum Beach Merauke District

Musamus Fisheries and Marine Journal ◽

10.35724/mfmj.v2i1.1869 ◽

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.

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

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d210827 ◽

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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Degradation level of mangrove forest and its reduction strategy in Tabongo Village, Boalemo District, Gorontalo Province, Indonesia

Asian Journal of Forestry ◽

10.13057/asianjfor/r010102 ◽

2017 ◽

Vol 1 (1) ◽

pp. 18-22

Author(s):

ABUBAKAR SIDIK KATILI ◽

MUSTAMIN IBRAHIM ◽

ZULIANTO ZAKARIA

Keyword(s):

Mangrove Forest ◽

Forest Type ◽

Descriptive Analysis ◽

Economic Value ◽

Mangrove Forests ◽

Rhizophora Mucronata ◽

Educational Approach ◽

Quantitative Descriptive Analysis ◽

Reduction Strategy ◽

Rhizophora Apiculata

Katili AS, Ibrahim M, Zakaria Z. 2017. Degradation level of mangrove forest and its reduction strategy in Tabongo Village, Boalemo District, Gorontalo Province, Indonesia. Asian J For 1: 18-22. This research aimed to assess the degradation level of mangrove forest and to develop strategy to reduce the degradation level. The overall research duration was 1 year, focusing on identification of mangrove forests degradation level, exploration of mangrove vegetation structure and preparation for mangrove degradation reduction strategy. The research was located in Tabongo Village, Dulupi Sub-district, Boalemo District, Gorontalo Province. The method used in the research was explorative survey, while the data analysis was done with quantitative descriptive analysis. The collecting method used was point quarter centered meter (PQCM) method. The degradation level of mangrove forest was analyzed by standard criteria of mangrove destruction according to Ministerial Decree of State Minister for The Environment (Kepmen. LH) No. 201 in 2004. Results showed that there are 4 species of mangrove plants in Tabongo Village, Dulupi Sub-district namely Rhizophora apiculata Blume, Rhizophora mucronata Lamk., Ceriops tagal (Perr) C.B.Rob, and Bruguiera which included in the Rhizophoraceae family. Rhizophora apiculata had the highest IVI value at the stage of tree and sapling, while Rhizophora mucronata Lamk had the highest IVI value at the stage of seedling. Tabongo mangrove area was a Scrub or dwarf forest type generally. This type was classified as a typical mangrove found in low edges. The mangrove condition in the coastal area of Tabongo Village, Boalemo, was categorized as broken (TNS1 = 210). While based on Assessment of criticality level of mangrove land based on the way teristris, formula was categorized as not broken (TNS2= 330). The reduction strategy that could be implemented to recover the quality of mangrove areas include (i) the assessment of the importance of the mangrove areas with regard to their ecological and economic value, (ii) quality improvement of mangrove habitat, (iii) educational approach by making the mangrove areas as learning media and source, and (iv) empowerment of people living around the mangrove areas.

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KOMPOSISI JENIS POHON DAN STRUKTUR TEGAKAN HUTAN MANGROVE DI DESA PANTAI BAHAGIA KECAMATAN MUARA GEMBONG KABUPATEN BEKASI PROVINSI JAWA BARAT

Jurnal Belantara ◽

10.29303/jbl.v1i2.87 ◽

2018 ◽

Vol 1 (2) ◽

Author(s):

Bagas Marsudi ◽

Ombo Satjapradja ◽

Messalina L Salampessy

Keyword(s):

Tree Species ◽

Mangrove Forest ◽

Diversity Index ◽

Coastal Protection ◽

Rhizophora Mucronata ◽

Mangrove Species ◽

Tree Species Composition ◽

Horizontal Structure ◽

Composition And Structure ◽

Sonneratia Alba

Mangrove forest ecosystems have a very important role for humans and the environment, so to prevent further damage needs to be done identification of tree species composition and structure of mangrove forest stands. For the purpose of this research is to know the composition of tree species from the level of seedling to the tree and to know the structure of its stand. Data collection methods used are Inventory of mangrove species using Indonesian mangrove determination keychain and data analysis by calculating important value index, Diversity index, relative frequency and horizontal structure analysis. The results showed that the largest tree density structure was Rhizophora mucronata of 225 trees / hectare, Avicennia marinna of 145 trees / hectare, Sonneratia alba of 65 trees / hectare and Avicennia officinalis of 65 trees / hectare and had only one crown layer namely strata A which is dominated by Rhizophora mucronata tree which has an average free height of 9 m branch with total height 12 m and diameter 29 cm. For this reason, planting efforts need to be increased to increase the number and composition for coastal protection.

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

Jurnal Kawistara ◽

10.22146/kawistara.7590 ◽

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.

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Inventarisasi Jenis Tumbuhan Obat Di Hutan Mangrove Desa Margasari Kecamatan Labuhan Maringgai Lampung Timur

Jurnal Sylva Lestari ◽

10.23960/jsl1267-76 ◽

2014 ◽

Vol 2 (1) ◽

pp. 67

Author(s):

Supriyanto . ◽

Indriyanto . ◽

Afif Bintoro

Keyword(s):

Mangrove Forest ◽

Diversity Index ◽

Good Condition ◽

Avicennia Marina ◽

The Public ◽

Nypa Fruticans ◽

Rhizophora Apiculata ◽

Acanthus Ilicifolius ◽

Low Diversity ◽

Important Value Index

Mangrove forest in Lampung Mangrove Center (LMC) Margasari village at East Lampung is one area that still has good condition to keep a variety of potential to be explored such as medicinal plants.Purpose of this study was to determine of species, diversity, and functional properties of mangrove plants for medicine.Research conducted in April 2012 in village 12 Translok at Margasari village East Lampung.Data retrieval is using method checkered lines, and interviews with the public, as well as literature.Number of sample plots used 12 pieces.Data were analyzed using the formula density, relative density, frequency, relative frequency, important value index, and diversity index Shannon.Based on the result of the research have been known 7 species of plants as medicine, among others: api-api (Avicennia marina) to cure rheumatism and toothache; jeruju (Acanthus ilicifolius) cure for cancer and diabetic; nipa (Nypa fruticans) medication for asthma and diabetes; bakau (Rhizophora apiculata) for antiseptic; beluntas (Pluchea indica) for body odor; jenu (Derris trifoliata) for a laxative; and tapak kuda (Ipomoea pescaprae) to cure wounds and ulcers.Api-api is a dominant plant and widest spread because it has an important index as value high as 144,24% and frequency 67,5%. Beluntas plant has the highest density of 12.708,33 individual/ha.Mangrove forest Margasari village at village 12 Translok have low diversity, because the calculation of the index obtained values Shannon H’=0, 44. Key words : inventory, mangrove forest, medicinal plant

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

E3S Web of Conferences ◽

10.1051/e3sconf/202014702017 ◽

2020 ◽

Vol 147 ◽

pp. 02017

Author(s):

Agnes Zafe Faustino ◽

Helen Lonsamia Madela ◽

Richard Gavina Castor ◽

Alvin Paredes Muroda ◽

Marian Nena Parato Chavez

Keyword(s):

Mangrove Forest ◽

Forest Cover ◽

Environmental Parameters ◽

Management Plan ◽

Mangrove Forests ◽

Mangrove Species ◽

Rhizophora Apiculata ◽

Illegal Activities ◽

Laws And Policies ◽

Philippine Government

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

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