Ecophysiological responses of young mangrove species Rhizophora apiculata (Blume) to different chromium contaminated environments

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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Distribusi Scylla spp. di perairan estuari Sungai Donan Segara Anakan Bagian Timur, Cilacap

Habitus Aquatica ◽

10.29244/haj.2.1.1 ◽

2021 ◽

Vol 2 (1) ◽

Author(s):

Sulistiono Sulistiono ◽

Nurul Musyariafah Yahya ◽

Etty Riani

Keyword(s):

Economic Value ◽

Scylla Serrata ◽

Mangrove Forests ◽

Mud Crab ◽

Mangrove Species ◽

Central Java ◽

Rhizophora Apiculata ◽

Mangrove Ecosystems ◽

Avicennia Alba ◽

Mangrove Crabs

Mangrove forests are ecosystems that make up coastal areas and river estuaries. The examples of mangrove ecosystems found in Indonesia are in Segara Anakan, Central Java. One of the aquatic biota with the economic value found in the mangrove forest ecosystem is the mud crab (Scylla spp.). The purpose of this study was to assess the distribution of mangrove crabs (Scylla spp.) to the presence of mangrove species in the mouth of the Donan River, Segara Anakan. A sampling of crabs and observations of mangrove vegetation were carried out at five stations spread from the river to the sea. The results showed that there were three types of mangrove crabs caught in the vicinity of the study, namely Scylla tranquebarica, S. olivacea, and S. serrata. The types of mangroves found include Rhizophora apiculata, R. mucronata, Avicennia rumphiana, A. alba, A. officinalis, and Nypa. Regression analysis showed that mangrove density correlated with the abundance of Scylla tranquebarica and Scylla olivacea, but contradicts the abundance of Scylla serrate. PCA analysis showed that the Crab species Scylla tranquebarica and Scylla olivacea were associated with mangroves of Avicennia alba, Avicennia rumphiana, and Rhizophora apiculata. Meanwhile, Scylla serrata crabs are associated with Avicennia officinalis.

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MACHINE LEARNING-BASED MANGROVE LAND CLASSIFICATION ON WORLDVIEW-2 SATELLITE IMAGE IN NUSA LEMBONGAN ISLAND

International Journal of Remote Sensing and Earth Sciences (IJReSES) ◽

10.30536/j.ijreses.2017.v14.a2820 ◽

2018 ◽

Vol 14 (2) ◽

pp. 159 ◽

Cited By ~ 1

Author(s):

Aulia Ilham ◽

Marza Ihsan Marzuki

Keyword(s):

Machine Learning ◽

Satellite Image ◽

Image Data ◽

Information Criterion ◽

Mangrove Forests ◽

Mangrove Species ◽

Rhizophora Apiculata ◽

Distribution Type ◽

Non Linear System ◽

Image Data Classification

Machine learning is an empirical approach for regressions, clustering and/or classifying (supervised or unsupervised) on a non-linear system. This method is mainly used to analyze a complex system for wide data observation. In remote sensing, machine learning method could be used for image data classification with software tools independence. This research aims to classify the distribution, type, and area of mangroves using Akaike Information Criterion approach for case study in Nusa Lembongan Island. This study is important because mangrove forests have an important role ecologically, economically, and socially. For example is as a green belt for protection of coastline from storm and tsunami wave. Using satellite images Worldview-2 with data resolution of 0.46 meters, this method could identify automatically land class, sea class/water, and mangroves class. Three types of mangrove have been identified namely: Rhizophora apiculata, Sonnetaria alba, and other mangrove species. The result showed that the accuracy of classification was about 68.32%.

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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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The influence of physicochemical environment on the distribution and abundance of mangrove gastropods in Ngurah Rai Forest Park Bali, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d210740 ◽

2020 ◽

Vol 21 (7) ◽

Author(s):

Ajie Imamsyah ◽

I WAYAN ARTHANA ◽

IDA AYU ASTARINI

Keyword(s):

Diversity Index ◽

Principal Component ◽

Mangrove Ecosystem ◽

Organic Content ◽

Mangrove Species ◽

Ecological Index ◽

Forest Park ◽

Rhizophora Apiculata ◽

Calculation Results ◽

Study Sites

Abstract. Imamsyah A, Arthana IW, Astarini IA. 2020. The influence of physicochemical environment on the distribution and abundance of mangrove gastropods in Ngurah Rai Forest Park Bali, Indonesia. Biodiversitas 21: 3178-3188. Ngurah Rai Forest Park is the widest mangrove ecosystem in Bali that close to the business center and tourism area. The strategic location of the Ngurah Rai Forest Park is estimated to produce anthropogenic waste that can disrupt the gastropod population and stability of the mangrove ecosystems. This study aims to analyze the mangrove density, distribution, and abundance of gastropods based on the quality of the biophysical environment. Mangrove data collection was carried out using a plot transect of 10 m x 10 m, 5 m x 5 m, and 1 m x 1 m. Meanwhile, samples gastropods were collected on a plot transect of 0.5 m x 0.5 m in plot transect of 5 m x 5 m. A total of 11 gastropods species and 6 mangrove species were recorded in this study. The dominant gastropods species found were Assiminea brevicula (28 ind/m2). Species mangrove of Sonneratia alba and Rhizophora apiculata found were in all study sites with tree density values of 1000 ind/ha. Subsequently, the ecological index calculation results show that the diversity index (H’) (2.89-3.2), evenness index (E) (0.87-0.93), and dominance index (C) (0.12-0.17). Based on the Principal Component Analysis (PCA) found was Assiminea brevicula spread on sand and silt substrates and adaptive to the temperature condition, salinity, pH, and dissolved oxygen. Furthermore, other analysis results showed that Cerithidea cingulata, Cerithidea quadrata, Littoraria articulata, and Littoraria scabra were found on clay substrate with high C-organic content. In conclusion, gastropods are evenly distributed and no species dominate the ecosystems.

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Comparison of true mangrove stands in Dudepo and Ponelo Islands, North Gorontalo District, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d200142 ◽

2018 ◽

Vol 20 (1) ◽

pp. 259-266

Author(s):

FAIZAL KASIM ◽

MIFTAHUL KHAIR KADIM ◽

SITTI NURSINAR ◽

ZULKIFLI KARIM ◽

ALDIN LAMALANGO

Keyword(s):

Similarity Index ◽

Basal Area ◽

Current Status ◽

Survey Method ◽

Landsat 8 ◽

Importance Value Index ◽

Importance Value ◽

Mangrove Species ◽

Rhizophora Apiculata ◽

The Mean

Kasim F, Kadim MK, Nursinar S, Karim Z, Lamalango A. 2019. Comparison of true mangrove stands in Dudepo and Ponelo Islands, North Gorontalo District, Indonesia. Biodiversitas 20: 259-266. This study aimed to investigate and compare the current status of mangrove areas, as well as the composition and species diversity of mangrove stands in both regions of Dudepo and Ponelo Islands. The results showed that the mangrove areas calculated using the segmentation method in classifying image of Landsat-8 OLI (acquisition on September 2017) were 279.46 ha (Dudepo Island) and 113.35 ha (Ponelo Island) respectively. A total of 13 species of true mangrove were recorded from both islands, using survey method from 9 transect lines (TL), with a distance ranging from 40 to 210 meters (1-6 quadrats) per transect. The mean densities of trees were 2133 ± 329.78 ha-1 (Dudepo Island) and 2111 ± 234.28 ha-1 (Ponelo Island), while those of saplings and seedlings were 58 ± 13.48 ha-1 and 1425 ± 113.96 ha-1 (Dudepo Island), and 79 ± 14.51 ha-1 and 2963 ± 443.22 ha-1 (Ponelo Island). The mean diameter and basal area were 19.73 ± 10.65 cm and 84.22 ± 67.67 m2ha-1 (Dudepo Island), 17.04 ± 1.46 cm and 60.07 ± 15.12 m2ha-1 (Ponelo Island), respectively. The Importance Value Index (IVI) ranged between 3.97-114.87 (Dudepo Island) and 6.04-82.18 (Ponelo Island). The dominant and codominant species based on IVI in both islands were Rhizophora apiculata Blume and R. stylosa Griff. The indexes of diversity, richness, and evenness of mangrove species in both islands were 0.34-1.70, 0.48-1.18, 0.47-0.94 (trees), 0.00-1.10, 0.00-1.82, 0.00-1.00 (saplings), and 0.00.-1.48, 0.00-1.44, 0.72-1.00 (seedlings), respectively. The Bray-Curtis similarity index between Dudepo and Ponelo Islands, based on the overall values of community attributes, was 0.75.

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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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MANGROVE FOREST EFFECT ON THE COASTLINE IN RANGSANG ISLAND RIAU PROVINCE

Asian Journal of Aquatic Sciences ◽

10.31258/ajoas.3.1.29-37 ◽

2020 ◽

Vol 3 (1) ◽

pp. 29-37

Author(s):

Paulinus ◽

Mubarak Mubarak ◽

Efriyeldi Efriyeldi

Keyword(s):

Image Data ◽

Landsat Image ◽

Sampling Location ◽

Landsat 8 ◽

Mangrove Forests ◽

Bruguiera Gymnorrhiza ◽

Mangrove Species ◽

Rhizophora Apiculata ◽

Xylocarpus Granatum ◽

Avicennia Alba

The study was conducted in May-June 2019 on Rangsang Island. This study aims to determine the effect of mangrove forests on coastline found on the island of Rangsang in Riau Province. The sampling location was determined by purposive sampling, namely 3 station points, namely Segomeng Village, Tanjung Kedabu Village, and Sungai Gayung Kiri Village. Landsat image data analyzed at the Oceanographic Physics Laboratory of the Department of Marine Sciences, Faculty of Fisheries and Maritime Affairs, University of Riau. To find out the area of mangroves using Landsad 5 TM satellite imagery and Landsat 8 OLI Tirs imagery and analyzed using Er Mapper Software, Envi 4.5 and Arcgis 10.3. Calculation of the structure of the mangrove community is carried out using the line plot plot method. The results of the analysis of the vast landsat image of mangroves in the coastal areas of Rangsang Island in 1997, 2002, 2007, 2013, 2019 were respectively 11,093 ha, 10,807 ha, 10,393 ha, 10,121 ha and 9,971 ha. Changes in the coastline indicate the occurrence of abrasion and accretion, where the highest abrasion occurs at station three with an average of -7.6 m/year and accretion occurs at station one with an average of 2.68 m / year. Mangrove density at station one is 2266.7 ind / ha and at station two that is 1466.7 ind / ha. Mangrove species found were Rhizophora apiculata, Rhizophora mucronata, Avicennia alba, Sonneratia ovata, Bruguiera gymnorrhiza, and Xylocarpus granatum.

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

BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) ◽

10.33772/biowallacea.v7i1.11036 ◽

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

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