Mangrove cluster as adaptation pattern of mangrove ecosystem in Segara Anakan Lagoon

Mangrove ecosystem play san important role in coastal area. In several region mangrove coverage had decreased caused by various factors such as landuse change, erosion and sedimentation. Mangrove ecosystem in Segara Anakan Lagoon had decreased and damaged as well. The current work aimed to analyze the change of mangrove coverage in Segara Anakan Lagoon. A remote sensing analysis was conducted to deployeight years of satellite imagery data from 2002 to 2009. Analysis method included NDVI algorythm map processing which was associated with vegetation coverage in the area of interest. The results show that mangrove coverage in Segara Anakan Lagoon had decreased from 9,163.19 ha in 2002 to 8,433 ha in 2003, 7,764 ha in 2004, 7,252.72 ha in 2005 and 6,213.80 ha in 2006 respectvely. Further decrease occured in 2007 to 5,767.16 ha, 4,987 ha in 2008 and finally to 4,267.13 ha in 2009. Mangrove coverage is decreased approximately 677 ha each year. This decrease might be caused by several factors such as conversion of mangrove coverage to other utilization such as farming, housing and ponds, and high sedimentation rate from Citanduy river. These results suggest that management of mangrove area is needed to support coastal resources sustainability in Cilacap. Therefore, replantation and<br />conservation of mangrove area could be applied for management purposes.

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The Mangrove Landscape and Zonation following Soil Properties and Water Inundation Distribution in Segara Anakan Cilacap

Jurnal Manajemen Hutan Tropika (Journal of Tropical Forest Management) ◽

10.7226/jtfm.27.3.152 ◽

2021 ◽

Vol 27 (3) ◽

pp. 152-164

Author(s):

E Hilmi ◽

◽

Amron Amron ◽

L K Sari ◽

T N Cahyo ◽

...

Keyword(s):

Soil Properties ◽

Species Distribution ◽

Avicennia Marina ◽

Mangrove Ecosystem ◽

Vegetation Density ◽

Rhizophora Stylosa ◽

Environment Factors ◽

Rhizophora Apiculata ◽

Segara Anakan Lagoon ◽

Water Inundation

The mangrove zoning and landscape express the correlation between mangrove vegetation (density, biodiversity and species distribution) with environment factors like as water inundation, seatide, and soil properties. The research was conducted in Segara Anakan Lagoon to analysis community structure and mangrove landscape based on species distribution, biodiversity, environment factors, and mangrove zoning. The results showed that (a) Segara Anakan Lagoon had 4 mangrove zone's were dominated by Sonneratia alba, Rhizophora mucronata, Avicennia marina, Rhizophora apiculata, Rhizophora styllosa, and Nypa frutican; (b) the structure of ecosystem was showed by trend of mangrove ecosystem with equation y = 35.34x2 923.85x + 12817 with x = time (year) and y = mangrove area (ha), mangrove density between 1333367 ind ha-1 (West Segara Anakan) and 899–567 ind ha-1 (East Segara Anakan), dominated species were Nypa frutican, Rhizophora stylosa, Rhizophora apiculata, and Aegiceras corniculatum and mangrove biodiversity between 2,572,65 (moderate); (c) structure of environment factor showed single and semi double-type tides, water debit between 0.360.73 m s-1; water depth between 0.20–23.7 m and water inundation between 480cm; soil texture was clay and loam, soil nitrate of 1.5 mg 100 g-1, soil phosphate of 1.5 mg 100 g-1, C organic of 1.31%, soil pH of 6–7, and soil salinity of 6.5–10 ppt.

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The Sedimentation Impact for the Lagoon and Mangrove Stabilization

E3S Web of Conferences ◽

10.1051/e3sconf/202132402001 ◽

2021 ◽

Vol 324 ◽

pp. 02001

Author(s):

Endang Hilmi ◽

Lilik Kartika Sari ◽

Tri Nur Cahyo ◽

Amron Amron ◽

Asrul Sahri Siregar

Keyword(s):

Total Suspended Solid ◽

Avicennia Marina ◽

Mangrove Ecosystem ◽

Suspended Solid ◽

Sediment Flux ◽

Rate Analysis ◽

Sonneratia Caseolaris ◽

Avicennia Alba ◽

Segara Anakan Lagoon ◽

The Impact

Sedimentation causes land accretion, silting river water, lagoon, and mangrove degradation. The current study aims to analyze the potential and the impact of sedimentation toward the potential of the lagoon and mangrove ecosystem in Segara Anakan Lagoon. The research methods used mapping analysis, total suspended solid analysis (TSS), sedimentation rate analysis, biodiversity analysis, and mangrove covering. The result showed that (1) the value of TSS between 0.25-1,16 g L-1 (2) sediment flux between 6,8 - 257,7 g m-2s-1 (3) annual rate of sedimentation in West Segara Anakan Lagoon (W-SAL) between 13.82 – 15.49 m yr-1. (4) The effects of sedimentation were (a) the remaining lagoon of West Segara Anakan Lagoon (W-SAL) which was 1.200 ha, (b) land accretion in W-SAL between 27.24 – 160.18 m (1994 – 2003) and 20.91 – 107.55 m (2003 2014), (c) the remaining mangrove of SAL less than 2594 ha (d) the mangrove diversity ranged between 0.48 – 1.71 (low – moderate), (e) the mangrove density of trees were 46 - 205 trees ha-1 (degraded) (5) mangrove landscape was developed to reduce the impact of sedimentation, especially the first zone of mangrove landscaping was dominated by Aegiceras Floridum, Avicennia Alba, Avicennia Marina, Sonneratia Caseolaris, and Sonneratia alba.

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Status and Rehabilittion Pattern of Mangrove Ecosystem in the Eastern of Segara Anakan Cilacap

Jurnal READ (Research of Empowerment and Development) ◽

10.20884/1.read.2020.1.1.2407 ◽

2020 ◽

Vol 1 (1) ◽

pp. 19

Author(s):

Endang Hilmi ◽

Lilik Kartika Sari ◽

Arif Mahdiana ◽

Sesilia Rani Samudra

Keyword(s):

Avicennia Marina ◽

Mangrove Ecosystem ◽

Bruguiera Gymnorrhiza ◽

Mangrove Area ◽

Rhizophora Apiculata ◽

Sonneratia Alba ◽

The Status ◽

Segara Anakan Lagoon ◽

Mangrove Degradation ◽

Selection Of

The Segara Ankan Lagoon (SAL) has a potentially reduced mangrove ecosystem. In this year, the mangrove area in SAL is predicted only remaining 1788 ha. The degradation of The Segara Ankan Lagoon (SAL) has a potentially reduced mangrove ecosystem. In this year, the mangrove area in SAL is predicted only remaining 1788 ha. The degradation of mangrove ecosystem often occurres in SAL, especially in Eastern of Segara Anakan Lagoon Cilacap (E-SAL). To reduce mangrove degradation need activities to review their status and recovery activities. This research aims to analysis the activities to support the effort of mangrove rehabilitation. The results of this researchd showed that (1) The potential of mangrove ecosystem in E-SAL was seedling between 15.000 – 34.999 trees ha-1, sapling between 5.199-9.065 trees ha-1 and trees between 533 – 1366 trees ha-1, (2) The status of mangrove ecosystem in E-SAL was damaged – very damaged. (3) the model spesices selection of rehabilitation pattern to reduce mangrove degradation were Rhizophora apiculata, Rhizophora mucronata, Aegiceras corniculatum, Sonneratia alba, Avicennia marina, and Bruguiera gymnorrhiza

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Species Density and Lead (Pb) Pollution in Mangrove Ecosystem, South Kalimantan

Jurnal Biodjati ◽

10.15575/biodjati.v5i1.7411 ◽

2020 ◽

Vol 5 (1) ◽

pp. 70-81

Author(s):

Anang Kadarsah ◽

Dafiuddin Salim ◽

Sadang Husain ◽

Marta Dinata

Keyword(s):

Heavy Metal ◽

Oil Palm ◽

Ph Value ◽

Coal Mines ◽

Organic Matter Content ◽

Mangrove Ecosystem ◽

Organic Content ◽

Species Density ◽

Pb Pollution ◽

Mangrove Ecosystems

Its crucial to get information about lead (Pb) heavy metal pollution from mining and oil palm plantation on species density in mangrove ecosystem, to anticipate its impacts. This study aimed is to compare the types and densities of vegetation in mangrove ecosystems allegedly due to mining in Setarap village, Tanah Bumbu Regency and oil palm plantations in Kuala Tambangan Village, Tanah Laut Regency. We also analysis the condition of waters (TDS, pH and DO) and organic content in sediments to acquire data from the South Kalimantan mangrove ecosystems. The results showed there were four species of true mangroves (Avicennia alba, Acanthus ebracteatus, Nypa fruticans and Rhizophora apiculate) could live well in the environment affected by mining or oil palm plantations. The species density for trees was low (933 ind/ha) for mangroves affected by coal mines, while those affected by oil palm plantations had higher densities (1,067 ind/ha). pH value of waters in affected area by coal mining showed more acidic value (pH 5.76) especially at the back, while those by palm oil plantations are more acidic (pH 6) in the estuary. Organic matter content in sediments affected by coal mines was in the range of 0.61-6.59%, while those affected by oil palm plantations showed higher values (0.12-2.19%). Lead heavy metal content (Pb) in waters affected by coal mines was 0.031-0.056 mg/L, while the area affected by oil palm plantations was of higher value (0.110-0.128 mg/L). Lead (Pb) levels in sediments indicate higher values than waters, which reach 3.512-6.046 mg/Kg (affected by coal mines), and in areas affected by oil palm plantations reaching 6.658-6.66 mg/Kg. The general conclusion is that vegetation densities in areas affected by coal mines are lower than oil palm plantations. The level of lead (Pb) pollution in the sediments is higher than in the waters.

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Mangrove Ecosystem Conditions In The Coast Teluk Pria Laot After Tsunami And Rehabilitation Efforts

Jurnal Segara ◽

10.15578/segara.v7i2.55 ◽

2011 ◽

Vol 7 (2) ◽

pp. 111

Author(s):

Dini Purbani ◽

M. Boer ◽

Marimin . ◽

I Wayan Nurjaya ◽

F. Yulianda

Keyword(s):

Mangrove Ecosystem

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PROFIL KERAGAMAN VEGETASI EKOSISTEM MANGROVE DI DESA TAMUKU KABUPATEN LUWU UTARA

Jurnal Pendidikan Teknologi Pertanian ◽

10.26858/jptp.v5i0.8564 ◽

2019 ◽

Vol 5 ◽

pp. 104

Author(s):

Suhendra Purnawan ◽

Subari Yanto ◽

Ernawati S.Kaseng

Keyword(s):

Survey Methods ◽

Mangrove Ecosystem ◽

Line Transect ◽

Mangrove Forests ◽

Vegetation Diversity ◽

Line Transect Survey ◽

Analysis Technique ◽

Mangrove Vegetation ◽

Data Collection Technique ◽

The Impact

This study aims to describe the profile of vegetation diversity in the mangrove ecosystem in Tamuku Village, Bone-Bone-Bone District, North Luwu Regency. This research is a qualitative research using survey methods. The data collection technique uses the Quadrant Line Transect Survey technique. The data analysis technique uses the thinking flow which is divided into three stages, namely describing phenomena, classifying them, and seeing how the concepts that emerge are related to each other. The results of this study are the profile of mangrove vegetation in Tamuku Village, which is still found 16 varieties of true mangrove vegetation and 7 varieties of mangrove vegetation joined in the coastal area of Tamuku Village, Bone-Bone District, North Luwu Regency, South Sulawesi. The condition of mangrove vegetation in Tamuku Village is currently very worrying due to human activities that cause damage such as the project of normalization of flow, opening of new farms, disposal of garbage, water pollution due to chemicals, and exploitation of mangrove forests for living needs. The impact is ecosystem damage and reduced vegetation area as a place to grow and develop mangroves.

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