scholarly journals Keanekaragaman Spesies Mangrove dan Zonasi di Wilayah Kelurahan Mangunharjo Kecamatan Tugu Kota Semarang

Life Science ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 41-53
Author(s):  
Rahmadyan Tefarani ◽  
Nana Kariada Tri Martuti ◽  
Sri Ngabekti
Keyword(s):  
Sampling Technique ◽  
Avicennia Marina ◽  
Mangrove Ecosystem ◽  
Combination Method ◽  
Systematic Sampling ◽  
Rhizophora Mucronata ◽  
Mangrove Species ◽  
Quadrat Sampling ◽  
Quantitative Descriptive ◽  
Better Than

Tugu sub-district has a mangrove ecosystem that is better than the other three sub-districts in Semarang City. The improvement of the mangrove ecosystem in Mangunharjo Village became the main of priority for mangrove rehabilitation This study aimed to determine the level of diversity of mangrove species found in the mangrove ecosystem of Mangunharjo Sub-District, Tugu District, Semarang City based on the zonation. The study was conducted in February-March 2018. Sampling using a combination method, that are systematic sampling with vegetation analysis techniques using quadrat sampling technique. There are three data collection stations determined based on the distance from the coastline to the mainland. Data were analyzed using quantitative descriptive statistics. The results showed that the diversity of mangrove species found in Mangunharjo Village had a low to moderate diversity level (0.72-1.32). The mangrove ecosystem in Mangunharjo is actually artificial ecosystem, with the type and number of mangroves dominated by Rhizophora mucronata and Avicennia marina. There are seven mangrove species found in the open zone, four species in the middle zone and four species in the land zone.   Kecamatan Tugu memiliki ekosistem mangrove yang masih baik dibandingkan dengan tiga kecamatan lainnya yang berada di Kota Semarang. Perbaikan ekosistem mangrove di Kelurahan Mangunharjo menjadi prioritas utama rehabilitasi mangrove. Penelitian ini bertujuan untuk menentukan tingkat keanekaragaman spesies mangrove yang terdapat di ekosistem mangrove Kelurahan Mangunharjo Kecamatan Tugu Kota Semarang berdasarkan zonasinya. Penelitian dilakukan pada bulan Februari–Maret 2018. Pengambilan sampel menggunakan metode kombinasi, yaitu antara systematic sampling dengan teknik analisis vegetasi menggunakan quadrat sampling technique. Terdapat tiga stasiun pengambilan data yang ditentukan berdasarkan jarak dari garis pantai hingga daratan. Data dianalisis secara statistik deskriptif kuantitatif. Hasil penelitian menunjukan bahwa keanekaragaman spesies mangrove yang terdapat di Kelurahan Mangunharjo mempunyai tingkat keanekaragaman rendah hingga sedang (0.72-1.32). Hal ini dikarenakan ekosistem mangrove wilayah Mangunharjo merupakan ekosistem buatan, dengan jenis dan jumlah mangrove yang dominasi oleh Rhizophora mucronata dan Avicennia marina.  Terdapat tujuh spesies mangrove yang ditemukan pada zona terbuka, empat spesies pada zona tengah dan empat spesies pada zona daratan.

scholarly journals KONDISI WISATA MANGROVE DI DESA PASAR BANGGI, KABUPATEN REMBANG Mangrove Tourism Conditions in Pasar Banggi Village, Rembang Regency

2019 ◽  
Vol 8 (3) ◽  
pp. 221-225
Author(s):  
Danang Adi Saputro ◽  
Frida Purwanti ◽  
Siti Rudiyanti
Keyword(s):  
Species Composition ◽  
Mangrove Forest ◽  
Mangrove Ecosystem ◽  
Google Earth ◽  
Survey Method ◽  
Systematic Sampling ◽  
Sampling Techniques ◽  
Mangrove Species ◽  
Sampling Points ◽  
Exploratory Survey

ABSTRAK Mangrove merupakan tumbuhan yang hidup di daerah pasang surut sebagai ekosistem interface antara daratan dengan lautan. Ekosistem mangrove di desa Pasar Banggi Kabupaten Rembang merupakan perpaduan antara mangrove alami dan hasil rehabilitasi. Tujuan penelitian ini untuk mengetahui kondisi mangrove di Desa Pasar Banggi, Rembang dilihat dari  komposisi jenis, kerapatan dan ketebalan mangrove serta menganalisis tingkat kesesuaian wisata mangrove di Desa Pasar Banggi, Rembang. Metode yang digunakan adalah metode survey lapangan yang bersifat eksploratif, dimana  teknis pengumpulan data menggunakan sistematik sampling. Data yang diambil meliputi 5 variabel yaitu: jenis, kerapatan mangrove dan asosiasi biota (hasil pengamatan lapangan dan perbandingan dari penelitian terdahulu), ketebalan (citra Google Earth Oktober 2016), pasang surut (data BMKG Oktober 2016). Pengambilan sampel dilakukan pada 3 stasiun, dimana setiap stasiun terdapat 3 titik sampling. Komposisi jenis mangrove di desa Pasar Banggi terdapat 3 jenis mangrove yaitu Rhizopora stylosa, R. mucronata, dan R. Apiculata, dengan kerapatan mangrove tertinggi yaitu 62 ind/100m2 dan ketebalan mangrove tertinggi sepanjang 139 m. Kondisi hutan mangrove desa Pasar Banggi termasuk dalam kategori sesuai (S2) untuk kegiatan wisata berkelanjutan di Kabupaten Rembang. ABSTRACT Mangroves are plants that grow in a tidal areas an interface ecosystems between terrestrial and marine. Mangrove ecosystem in the Pasar Banggi Village,  Rembang Regency is a combination results of natural mangrove and rehabilitation. The purpose of this study were to determine condition of mangroves in the Pasar Banggi Village, Rembang, seen from the species composition, density and thickness of mangroves and to analyze the suitability level of mangrove tourism in the Pasar Banggi Village, Rembang. The method used in this study was an exploratory survey method, data collected using systematic sampling techniques. Mangrove tourism data collection was carried out of 5 variables, i.e.: type of mangrove, density of mangroves and associations of biota (from observations and comparisons of previous studies), thickness (Google Earth image October 2016), tides (data BMKG October 2016). Sampling was conducted at 3 stations, each station has 3 sampling points. The composition of mangrove species in Pasar Banggi village consists of 3 types of mangroves, namely Rhizopora stylosa, R. mucronata, and R. Apiculata, with the highest density of mangrove 62 ind / 100m2 and the highest thickness of mangrove along 139 m. The condition of mangrove forest in the Pasar Banggi village was included in the appropriate category (S2) for sustainable tourism activities in the Rembang Regency.

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.

scholarly journals Biochemical markers for carbon sequestration in two mangrove species (Avicennia marina and Rhizophora mucronata)

2018 ◽  
Vol 7 (4) ◽  
pp. 733-739 ◽  
Author(s):  
Kandasamy Kathiresan ◽  
Kandasamy Saravanakumar ◽  
Nabikhan Asmathunisha ◽  
Raj Anburaj ◽  
Venugopal Gomathi
Keyword(s):  
Carbon Sequestration ◽  
Biochemical Markers ◽  
Avicennia Marina ◽  
Rhizophora Mucronata ◽  
Mangrove Species

scholarly journals Evaluation of carbon stock in the sediment of two mangrove species, Avicennia marina and Rhizophora mucronata, growing in the Farasan Islands, Saudi Arabia

Oceanologia ◽  
2020 ◽  
Vol 62 (2) ◽  
pp. 200-213 ◽  
Author(s):  
Ebrahem M. Eid ◽  
Khaled M. Khedher ◽  
Hamdi Ayed ◽  
Muhammad Arshad ◽  
Adel Moatamed ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Carbon Stock ◽  
Avicennia Marina ◽  
Rhizophora Mucronata ◽  
Mangrove Species ◽  
Farasan Islands

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 Comparison of Print Modules and E-Modules to the Tolerance Character of Students

2021 ◽  
Vol 5 (2) ◽  
pp. 298
Author(s):  
Syahrial Syahrial ◽  
Asrial Asrial ◽  
Dwi Agus Kurniawan ◽  
Latipia Damayanti
Keyword(s):  
Elementary School Students ◽  
Social Life ◽  
Sampling Technique ◽  
Student Response ◽  
Validity And Reliability ◽  
School Students ◽  
Learning Modules ◽  
Quantitative Descriptive ◽  
Better Than

Nowadays, the character of tolerance in elementary school students is experiencing degradation. Whereas the character of tolerance is one of the important characters possessed by students in their social life. This study aims to analyze the comparison of responses and tolerance characteristics of students who learn to use two different learning modules, namely the electronic module and the printed module. This research is quantitative descriptive. The population in this study amounted to 243 students. Determination of the sample is done by using the purposive sampling technique, to obtain a sample of 32 students. Data collection in this study used instruments in the form of student response questionnaires and tolerance character questionnaires. The instrument used has been tested for validity and reliability. The collected data were then analyzed using descriptive and inferential statistics, assumption tests (normality and homogeneity), and hypothesis testing (t-test). The results showed that students' responses were more dominant when using the electronic module based on local wisdom than the printed module. The tolerance character that appears is also more visible when using an electronic module based on the local wisdom instead of a printed module. Based on these findings, it was concluded that students' responses when using the electronic module were better than using the print module. Students' tolerance character can also be seen in the application of electronic modules and print modules. So it is recommended that the electronic module based on local wisdom be used as additional teaching materials in learning in elementary schools.

scholarly journals The potential of Rhizophora mucronata and Sonneratia caseolaris for phytoremediation of lead pollution in Muara Angke, North Jakarta, Indonesia

2019 ◽  
Vol 20 (8) ◽  
Author(s):  
Maman Rumanta
Keyword(s):  
Heavy Metals ◽  
Anthropogenic Activities ◽  
Mangrove Ecosystem ◽  
Heavy Metal Accumulation ◽  
Physiological Adaptation ◽  
Lead Pollution ◽  
Rhizophora Mucronata ◽  
Mangrove Species ◽  
Sonneratia Caseolaris ◽  
Stems And Leaves

Abstract. Rumanta M. 2019. The potential of Rhizophora mucronata and Sonneratia caseolaris for phytoremediation of lead pollution in Muara Angke, North Jakarta, Indonesia. Biodiversitas 20: 2151-2158. Environmental pollution by heavy metals has become a serious problem in Jakarta Bay. Mobilization of heavy metals as a result of anthropogenic activities has caused the release of heavy metals into the environment, one of which is Pb. Several methods have already been used to clean up the environment from these kinds of contaminants, but most of them are costly and difficult to get optimum results. Recently, phytoremediation is an effective and affordable technological solution used to extract or remove inactive metals and metal pollutants from contaminated soil and water. This technology is environmentally friendly and potentially cost-effective. These study objectives are (i) to find the accumulating capability of Pb in each plant tissues (roots, stems, and leaves) of R. mucronata and S. caseolaris; (ii) to find stomatal morphological characters of R. mucronata and S. caseolaris. All samples (roots, stems, and leaves) were collected from Muara Angke mangrove forest in North Jakarta. The accumulation of Pb is higher in S. caseolaris leaves than in roots, and stems, and than those in R. mucronata. The concentrations of Pb in roots, stems, and leaves of S. caseolaris were respectively 4.83 μg/g, 3.37 μg/g and 15.57 μg/g and in R. mucronata were 10.50 μg/g, 5.13 μg/g and 13.33 μg/g. Generally, the stomata of mangrove species that live in polluted ecosystems are longer and wider than the stomata of the same mangrove species that live in a non-polluted ecosystem. This is strongly suspected of being related to the physiological adaptation of heavy metal accumulation. This study showed that S. caseolaris is the most suitable species as a phytoremediation agent in the Muara Angke mangrove ecosystem.

scholarly journals Diversity, biomass, covers, and NDVI of restored mangrove forests in Karawang and Subang Coasts, West Java, Indonesia

2021 ◽  
Vol 22 (9) ◽  
Author(s):  
Agung Suwanto ◽  
Noverita Dian Takarina ◽  
Raldi Hendro Koestoer ◽  
Evi Frimawaty
Keyword(s):  
Carbon Sink ◽  
Avicennia Marina ◽  
Common Species ◽  
Mangrove Forests ◽  
Rhizophora Mucronata ◽  
West Java ◽  
Mangrove Species ◽  
Sonneratia Caseolaris ◽  
Rhizophora Apiculata ◽  
Bruguiera Gymnorhiza

Abstract. Suwanto A, Takarina ND, Koestoer RH, Frimawaty E. 2021. Diversity, biomass, covers, and NDVI of restored mangrove forests in Karawang and Subang Coasts, West Java, Indonesia. Biodiversitas 22: 4115-4122. Indonesia has been recognized as the country with greatest diversity of mangrove species with significant amount of carbon sink and biomass. In few recent decades, mangrove forests have been deforested significantly. One of the solutions to deal with mangrove deforestation is through restoration. West Java north coasts are one of the areas that have experienced deforestation, however and mangrove restorations have been conducted mainly in Karawang and Subang coasts. Correspondingly this research aims to assess the mangrove diversity using index and biomass resulted from restoration program in those coasts. To assess the mangrove diversity in each coast on June 2021, 6 sampling stations containing 3 replicated sample plots of size 10 m × 10 m were located. In total 8 species with 1549 trees were been sampled. In Subang the order of mangrove species from common to less-common species were Avicennia marina > Rhizophora mucronata > Sonneratia caseolaris > Acanthus ilicifolius > Bruguiera gymnorhiza. While the order in Karawang was Avicennia marina > Rhizophora mucronata > Rhizophora apiculata > Sonneratia caseolaris > Bruguiera gymnorhiza. The mangrove diversity (H)’ was significantly different (p = 0.000, F = 2.216) with diversity in Subang Coast (average H' = 1.326, 95% CI: 1.15-1.5) was higher than in Karawang (average H’ = 1.063, 95%CI: 0.934-1.2). Estimated restored mangrove covers in Subang were 3.612 km2 and 0.46 km2 in Karawang. R. mucronata was mangrove species that has the highest biomass with the value of 1337.91 mg ha-1 and the lowest was A. marina with value of 14.3 mg ha-1. The results suggest that restoration areas in Subang and Karawang have significant contributions to maintain mangrove diversity, biomass, and covers.

scholarly journals Studies on Canopy Parameters of Some Mangroves Along the Coast of Maharashtra

2021 ◽  
Vol 4 (4-5) ◽  
pp. 225-229
Author(s):  
Narendra Kulkarni ◽  
Leela J. Bhosale
Keyword(s):  
Correlation Coefficient ◽  
Canopy Cover ◽  
Avicennia Marina ◽  
Kandelia Candel ◽  
Rhizophora Mucronata ◽  
Mangrove Species ◽  
Aegiceras Corniculatum ◽  
Excoecaria Agallocha ◽  
Sonneratia Alba ◽  
Avicennia Officinalis

Mangrove species, viz., Avicennia officinalis, Avicennia marina var. acutissima, Avicennia marina (dwarf), Rhizophora mucronata, Sonneratia alba, Aegiceras  corniculatum, Kandelia  candel were chosen for measurement of height of the tree and girth or circumference. The sampling was random and at least 50 records were made. The girth is measured by the tape. The measurement of the height is made with the help of abny level. The Tables 1 to 8 records the values for girth, height and canopy cover as well as for correlation coefficient (r). There correlation between girth and canopy in all the species studied however in case of Avicennia officinalis and Aegiceras corniculatum girth and height show more co-relation than girth and C. cover. The positive co-relation observed between girth and canopy is more or less 0.7 except Avicennia marina (dwarf) Excoecaria agallocha and Aegiceras corniculatum. The co-relation is observed in girth and height is difficult to explain. This case is observed in Avicennia officinalis and Aegiceras corniculatum.

scholarly journals Kekhasan Morfologi Spesies Mangrove di Gili Sulat

2014 ◽  
Vol 14 (2) ◽  
Author(s):  
Agil Al Idrus, I Gde Mertha Gito Hadiprayitno, dan M. Liwa Ilhamdi
Keyword(s):  
Avicennia Marina ◽  
Survey Method ◽  
Rhizophora Mucronata ◽  
Mangrove Species ◽  
Rhizophora Stylosa ◽  
Rhizophora Apiculata ◽  
Specific Morphology ◽  
Sonneratia Alba ◽  
Result Show

ABSTRAKTujuan penelitian ini adalah menganalisis kekhasan morfologi spesies mangrove diGili Sulat. Pengumpulan data dalam penelitian ini menggunakan metode survey melaluipengamatan langsung secara in situ terhadap morfologi populasi-populasi dalam spesiesmangrove di lapangan. Data yang diperoleh dianalisis secara kualitatif dan kuantitatifkemudian deskripsikan untuk menggambarkan kekhasan morfologi spesies mangrove diGili Sulat. Hasil penelitian menunjukkan terdapat tujuh spesies mangrove komponenmayor yang populasinya menunjukkan morfologi yang khas di Gili Sulat, yaitu Bruguieragymnorrhiza, Rhizophora mucronata, Rhizophora stylosa, Rhizophora apiculata, Ceriopstagal, Sonneratia alba, dan Avicennia marina. Kekhasan morfologi spesies mangrovetersebut mencakup karakter tinggi pohon, warna dan diameter batang, struktur akar danjumlah bunga.Kata kunci: kekhasan, mangrove, morfologiABSTRACTThe aims of this reseach is to analyze specific morphology of species mangrove inGili Sulat. Data collected in this reseach is done by survey method through in situobservation to populations morphology of mangrove species in the field. Data is analyzedby qualitative and quantitative and then describing to explain specific morphology ofmangrove species in Gili sulat. The result show that there are seven major component ofmangrove species with specific population morphology in Gili sulat, namely Bruguieragymnorrhiza, Rhizophora mucronata, Rhizophora stylosa, Rhizophora apiculata, Ceriopstagal, Sonneratia alba, and Avicennia marina, respectively. The specific morphologycharacter of these mangrove species are heigh of trees, colour and diameter of stem, rootstructure and number of flower.Key Words: specific, mangrove, morphology

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