Assessment of the Environmental Status of the Mangrove Ecosystem in the United Arab Emirates

In the Arabian Gulf, mangroves play a particularly important role in maintaining biodiversity. Water and intertidal sediments were collected from eight sampling locations in April 2017 to assess the environmental status of the mangrove forest in the Khor al Beida, Umm Al Quwain, which is one of the largest natural mangrove forests in the United Arab Emirates (UAE). Khor al Beida is also a breeding ground for the largest Gulf colony of a regionally endemic Socotra cormorant. Total metal concentrations of water and sediments were measured using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and ranged between 0.001–2.873 mg/L and 0.08–12683.02 mg/kg, respectively. Most metals were within permissible levels, except for copper, iron, aluminum, zinc, and nickel. Hazard Quotient calculations showed low risk to the ecosystem in relation to the presence of heavy metals, with the exception of zinc. Fifty-three diatom species of pennate benthic forms were identified in the intertidal sediments. For the first time in the UAE, diatom composition and diatom diversity values were quantitatively estimated in the surface sediments and a short sediment core. Overall, the assessment suggests that the mangrove forest is currently undisturbed and shows very little anthropogenic impact; yet, protection and conservation efforts are necessary in order to maintain its current status.

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Current status, utilization, succession and zonation of mangrove ecosystem along Mida Creek, Kenya

International Journal of Bonorowo Wetlands ◽

10.13057/bonorowo/w100103 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

MARY WANJIRU WARUI ◽

SHYAM MANOHAR ◽

PAUL OBADE

Keyword(s):

Regression Analysis ◽

Mangrove Forest ◽

Floristic Composition ◽

Mangrove Ecosystem ◽

Current Status ◽

Mangrove Forests ◽

Rhizophora Mucronata ◽

Mangrove Species ◽

Management Policies ◽

Ceriops Tagal

Abstract. Warui MW, Manohar S, Obade P. 2020. Current status, utilization, succession and zonation of mangrove ecosystem along Mida Creek, Coast Province, Kenya. Bonorowo Wetlands 10: 32-43. Human activities have resulted in the destruction of mangrove forests, posing a threat to the mangrove ecosystem and the living things that rely on it. From September 2009 through February 2010, researchers studied the current state, usage, succession, and zonation of the mangrove ecosystem along Mida Creek in Kenya's Coast Province. The goals were to assess changes in the floristic composition of the mangrove forest, identify the most preferred mangrove species, investigate whether accessibility determines utilization of mangrove species, investigate whether harvesting of mangroves affects their succession, and investigate the effectiveness of current mangrove forest management policies. The data was collected using the Point-Centered Quarter Method (PCQM) to see if access into the mangrove forest influences their use and if mangrove succession is affected by their use. To evaluate the efficiency of government policies/legislation governing mangrove exploitation and the most favored mangrove species by the local community and other users, questionnaires were circulated and interviews were conducted. Out of the 210 houses in Mida Creek, 136 respondents were interviewed, one from each household. To examine the temporal changes in the floristic composition of the mangrove forest, two sets of aerial images (1992 and 2006) were processed and interpreted. The data from the questionnaires were coded and entered into the Statistical Package for the Social Sciences (SPSS). An analysis of variance (ANOVA) was used to see if the accessibility of mangroves influences their use. To see if the utilization of mangroves affects their succession, researchers used regression analysis. To evaluate the forest structure, an importance value was derived. To summarize the present mangrove forest management policies and their effectiveness, descriptive statistics were used. Between 1992 and 2006, the floristic composition of the mangrove forest in Mida Creek changed; the area covered by mangroves decreased as follows: Rhizophora mucronata (Rm); 65.09-63.93ha; Avicennia marina (Am); 344.99-310.63ha; Ceriops tagal (Ct); 225.12-223.82ha; Rm and Ct; 52.87-50.22ha; Ct and Am; 143.69- 140.29ha; Rm and Am; 44.36-41.27ha; Rm and Bg; 212.75-199.75ha; Rm and Sonneratia alba (Sa); 47.64-46.32ha; Rm, Ct and Bruguiera gymnorrhiza (Bg); 129.07-128.12ha; Rm, Am, Ct, and Bg; 472.44-428.46ha. The number of cut mangroves in the adjacent settlements, center, and shoreline revealed a significant difference (F=3.277; df=2; p=0.040) in the ANOVA test, indicating that accessibility determines consumption. The most favored mangrove species was Rhizophora mucronata, according to the findings. There was a correlation between the number of mangrove seedlings and the number of cut mangroves (F=8.529, df=1, R=0.198, P=0.004), according to regression analysis. The use of mangroves has an impact on their succession. Mangrove utilization policies and legislation have been less effective. The key species in Mida Creek were Rhizophora mucronata and Ceriops tagal. The extent of mangrove forests in Mida Creek has shrunk over time.

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Detection Of Community Knowledge Level Of Economic, Ecological Benefits And Causes Of Damage To Mangrove Forest Ecosystems

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/748/1/012017 ◽

2021 ◽

Vol 748 (1) ◽

pp. 012017

Author(s):

E Wahyuni ◽

Zulhafandi ◽

Hendris ◽

Jarin

Keyword(s):

Mangrove Forest ◽

Forest Ecosystems ◽

Mangrove Ecosystem ◽

Economic Benefits ◽

Household Waste ◽

Mangrove Forests ◽

Scoring Method ◽

Ecological Benefits ◽

Community Knowledge ◽

Breeding Sites

Abstract Mangrove forests are natural resources in coastal areas that have an important role in terms of social, economic and ecological aspects. However, the utilization of the mangrove ecosystem makes it vulnerable to damage. This study aims to determine the level of public knowledge of the economic, ecological benefits and damage that happened to mangrove areas in Tarakan City. The scoring method was used to determine the total score or the total score of the respondents’ answers, which amount to 50 people. that the community’s knowledge of the economic benefits of mangrove forests was categorized as know for the benefits of mangroves as firewood, mangrove areas as a place for settlement, mangroves as a place to get fish and mangrove benefits as aquaculture areas with total scores of 226, 200, 232,230 respectively. However, the level of community knowledge about the benefits of mangroves as a medicinal ingredient obtained a total score of 164, which means the level of community knowledge was in the doubtful category. While the level of community knowledge of the ecological benefits of mangrove forests as coastline guards, sea wave barriers, sea wind protectors, and animal breeding sites were included in the category of “Know” with a total score of 228, 224, 234, 240 respectively, but the level of knowledge The community regarding the benefits of mangroves that can manage household waste was in the “doubtful” category with a total score of 128. The community was aware of the damage to mangrove forest ecosystems caused by garbage, logging / mangroves, expanding aquaculture, settlements and increasing population. with a total score of 234,232, 210,228 and 200 levels of knowledge, respectively, which are included in the “Know” category.

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Society’s Participation Model For Mangrove Rehabilitation in Cempa District, Pinrang Regency

UNM Geographic Journal ◽

10.26858/ugj.v2i1.5422 ◽

2019 ◽

Vol 2 (1) ◽

pp. 9

Author(s):

Nurul Azmi

Keyword(s):

Mangrove Forest ◽

Sampling Technique ◽

Mangrove Ecosystem ◽

Mangrove Forests ◽

Planning Stage ◽

Working Groups ◽

Level Of Knowledge ◽

Mangrove Rehabilitation ◽

The Government ◽

Forest Rehabilitation

This study aims to determine: 1) The level of society support in the rehabilitation of mangrove forests. 2) Model ofsociety participation in the rehabilitation of mangrove forests. The population in this study was 721 people, a sample was72 people. The sampling technique used is proportional random sampling. Data collection using observation techniques, interviews, and questionnaires. Data analysis using descriptive interpretative. The results showed that the level of knowledge and society support about mangrove forest rehabilitation is good enough. The model of society participation is that they are directly involved in the rehabilitation of mangrove forest starting from the planning stage, which is to provide aspirations in the form of concepts, ideas. Designing the concept to be implemented. Planting, they participates in the provision of seeds and planting. Establish working groups led by community leaders or chairmen of working groups. Maintenance, participate in mangrove csssare from the re-planting of mangroves that diaman dead and eradicate the pests that attack the mangrove seeds, and finally the Supervision, in this stage they forbid anyone to remove, cut the mangrove that has been planted. The government also participates in the supervision and make the rule of giving sanctions to those who deliberately destroy the mangrove ecosystem.

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The effect of waste on chlorophyll content of leaves and regeneration of mangrove forest at Angke Kapuk Protection Forest, Jakarta

Bonorowo Wetlands ◽

10.13057/bonorowo/w050203 ◽

2015 ◽

Vol 5 (2) ◽

pp. 77-84

Author(s):

FARIDAH LESTARI ◽

CECEP KUSMANA

Keyword(s):

Chlorophyll Content ◽

Mangrove Forest ◽

Mangrove Ecosystem ◽

Mangrove Forests ◽

Forest Research ◽

Protection Forest ◽

Mangrove Area ◽

Mangrove Seedlings

Lestari F, Kusmana C. 2015. The effect of waste on chlorophyll content of leaves and regeneration of mangrove forest at Angke Kapuk Protection Forest, Jakarta. Bonorowo Wetlands 5: 77-84. Mangrove ecosystem is a transition ecosystem between land and sea. Currently the mangrove forests at Angke Kapuk Protection Forest, North Jakarta has been degraded by large amount waste. In connection with this situation, the forest research was carried out with the aim to consider the effect of waste existence on the chlorophyll content of tree’s leaf and the regeneration of mangrove forests in Angke Kapuk Protection Forest. The results showed that the existence of the waste has no effect on the chlorophyll content of leaves, but it has significant by impact on the regeneration of mangrove forest. This is shown with a density of mangrove seedlings in the less waste-occupied mangrove area is bigger than that of medium and high waste-occupied mangrove areas.

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PENGARUH PERUBAHAN LUAS HUTAN MANGROVE TERHADAP KONSENTRASI TOTAL SUSPENDED MATTER (TSM) DI MUARA PERANCAK, JEMBRANA – BALI

Jurnal Kelautan Nasional ◽

10.15578/jkn.v14i1.6864 ◽

2019 ◽

Vol 14 (1) ◽

Author(s):

Komang Iwan Suniada

Keyword(s):

Suspended Matter ◽

Mangrove Forest ◽

Satellite Image ◽

River Mouth ◽

Remote Sensing Data ◽

Image Data ◽

Mangrove Ecosystem ◽

Total Suspended Matter ◽

Forest Area ◽

Mangrove Forests

Study of the function of mangrove forests as a sediment trap has been largely undertaken using field measurement methods, but only a few researches that fully utilize remote sensing data to find out the influence of mangrove forest’s area changes against the Total Suspended Matter (TSM) making this study very interesting and important to do. This research was conducted in Perancak estuary area which is one of mangrove ecosystem area in Bali besides West Bali National Park, Benoa Forest Park and Nusa Lembongan. The data used to generate TSM information and change of mangrove forest area in this research is medium resolution satellite image data, Landsat. Tidal data and rainfall data were used as a supporting data. The information of TSM concentration obtained by using Budhiman (2004) algorithm, shows that along with the increasing of mangrove forest area has caused the decreasing of TSM concentration at mouth Perancak river. The decline was caused by sediments trapped and settled around trees or mangrove roots, especially the Rhizophora mangroves. In addition to the increasing of mangrove forest area, the tidal oceanography factor also greatly influences the TSM fluctuation around Perancak river mouth.

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Peran Ekosistem Hutan Mangrove Sebagai Habitat Untuk Organisme Laut

JURNAL BIOLOGI TROPIS ◽

10.29303/jbt.v17i2.406 ◽

2017 ◽

Vol 17 (2) ◽

Author(s):

Karimah, M. Fahrurrozi

Keyword(s):

Forest Ecosystem ◽

Mangrove Forest ◽

Descriptive Analysis ◽

Mangrove Ecosystem ◽

Marine Organisms ◽

Mangrove Forests ◽

Land Area ◽

Portunus Pelagicus ◽

Important Habitat

AbstrakTulisan ini menjelaskan tentang peran ekosistem hutan mangrove sebagai habitat untuk organisme laut dengan menggunaan analisis diskriptif. Data diambil dari literatur-literatur terkait yang kemudian didiskripsikan lebih lanjut. Data yang diperoleh menunjukkan bahwa hutan mangrove di Indonesia diperkirakan mencakup area seluas 4,25 juta hektar, hanya sekitar 2% dari seluruh wilayah daratan, namun nilai ekonomi dan lingkungannya tidak boleh di bawah perkiraan, oleh karena itu kehadirannya harus dijaga. Sebagai zona transisi antara ekosistem terestrial dan laut, ekosistem mangrove telah lama dikenal memiliki banyak fungsi dan merupakan penghubung penting dalam menjaga keseimbangan biologis ekosistem pesisir. Ekosistem hutan mangrove merupakan habitat penting bagi organisme laut. Umumnya didominasi oleh moluska dan krustasea. Moluska ini terdiri terutama dari Gastropoda dan selanjutnya didominasi oleh dua keluarga, yaitu Potamidae dan Ellobiidae. Sedangkan untuk krustasea, terutama terdiri dari Brachyura. Beberapa fauna mangrove juga dikenal sebagai bahan habis pakai dan secara ekonomi penting seperti Terebralia palustris, Telescopium telescopium (Gastropoda), Anadara kuno, Coaxans polymesoda, Ostrea cucullata (Bivalvia), dan Scylla serrate, S. olivacea, Portunus pelagicus, Epixanthus dentatus, Labnanium politum (Crustacea).Kata kunci : hutan mangrove, ekosistem mangrove, moluska Abstract This paper describes the role of the mangrove forest ecosystem as a habitat for marine organisms by using descriptive analysis. The data are drawn from related literatures which are further described. The data obtained indicate that mangrove forests in Indonesia are estimated to cover an area of 4.25 million hectares, only about 2% of the entire land area, but its economic and environmental value should not be underestimated, therefore its presence must be maintained. As a transition zone between terrestrial and marine ecosystems, the mangrove ecosystem has long been known to have many functions and is an important link in maintaining the biological balance of coastal ecosystems. The mangrove forest ecosystem is an important habitat for marine organisms. Generally dominated by molluscs and crustaceans. This mollusc consists mainly of Gastropods and is further dominated by two families, namely Potamidae and Ellobiidae. As for crustaceans, mainly consisting of Brachyura. Some mangrove fauna are also known as economical and economically important materials such as Terebralia palustris, Telescopium telescopium (Gastropoda), ancient Anadara, Coaxans polymesoda, Ostrea cucullata (Bivalvia), and Scylla serrate, S. olivacea, Portunus pelagicus, Epixanthus dentatus, Labnanium politic (Crustacea).Keywords: mangrove forest, mangrove ecosystem, mollusk,

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COLONIZATION OF MANGROVE FOREST AT ABANDONED SHRIMP-POND OF SEGARA ANAKAN-CILACAP

Jurnal Teknosains ◽

10.22146/teknosains.6050 ◽

2015 ◽

Vol 4 (1) ◽

Author(s):

Tjut Sugandawaty Djohan

Keyword(s):

Mangrove Forest ◽

Mangrove Ecosystem ◽

Mangrove Forests ◽

Shrimp Ponds ◽

Shrimp Pond ◽

Mangrove Tree ◽

Rhizophora Apiculata ◽

Acanthus Ilicifolius ◽

Avicennia Alba ◽

Mangrove Trees

During the 1996 to 1997, large areas of mangrove forest in the Segara Anakan were cleared and converted into intensive shrimp-ponds. After one to two years, these shrimp-ponds failed and were abandoned. These abandoned ponds created large gap areas and canopy gaps, which were colonized by mangrove shrub and liana. The Segara Anakan mangrove also experienced heavy siltation, and there were tree cuttings from the remnant of the mangrove trees. This research aimed to study the colonization of mangrove vegetation at the abandoned-shrimp pond. Vegetation data were collected using rectangular plots of 25 m x 25 m with 4 replicates. The water qualities were also studied. The results revealed that the mangrove forests were composed of two layers: canopy tree and floor-vegetation. The gap areas triggered the pioneer species of mangrove shrubs and liana, Acanthus ilicifolius and Derris heterophylla, to colonize and dominate 100% of the mangrove forest floor. The mangrove trees consisted of natural and planted tree species. The natural trees were Sonneratia alba, Avicennia alba, and saplings of Aegiceras corniculatum, which varied between 56 – 136, 4, and 4 individuals per ha, respectively. The planted trees were Rhizophora apiculata, which amounted to 4 – 12 individuals per ha, at the island of the ponds. These trees and saplings were entangled by the liana mangrove, which disturbed their growth. The A. ilicifolius and D. heterophylla prevented the mangrove tree propagules to grow, and they colonized and characterized those abandoned shrimp-ponds, which threatened the Segara Anakan mangrove ecosystem.

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MANGROVE FOREST CONDITION IN PIRU BAY, WEST SERAM, MOLUCCAS

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.28930/jitkt.v7i2.11138 ◽

2016 ◽

Vol 7 (2) ◽

Author(s):

Fasmi Ahmad

Keyword(s):

Mangrove Forest ◽

Local Community ◽

Coastal Region ◽

Mangrove Ecosystem ◽

Line Transect ◽

Mangrove Forests ◽

Forest Condition ◽

Number Of Individuals ◽

The Village ◽

Made In

Information on condition and biodiversity of mangrove ecosystem to support a sustainable management of mangrove ecosystem is very important in the coastal region of Eti village, Piru Bay, West Seram, Molluccas. The purposes of this study were to determine the condition and biodiversity of mangrove ecosystem in the village of Eti, Gulf Piru. Filed data collection was conducted in November 2010 using the line transect method. The box size along the transects was made in accordance with its purposes such as 10 x 10 m2 for trees, 5 x 5 m2 for sapling, and 1 x 1 m2 for seed. The distance between the box transect was 25 m. Number of individuals of each species were counted and the diameter at the chest-height was also measured. Results showed that sixteen species were found within ten genera. There were 9 species of tree categories, 10 species of sapling categories, and 8 species of seed categories. The highest density and frequency of occurrence for the three categories was represented by Rhizophora apiculata, while the largest coverage percentage was represented by Sonneratia alba. The highest important value was also represented by Rhizophora apiculata. In general, the condition of mangrove forests in the village of Eti, Piru Bay was still relatively good, but the local community was very active to take advantage of these mangrove forests products such as charcoal, fencing, and wood that they sold every week. Therfore, it is necessary for local government efforts to protect the mangrove ecosystem from destructed activities of the local community.Keywords: mangrove forest, Rhizophora apiculata, Sonneratia alba, Teluk Piru, Molluucas

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Pemetaan Distribusi Ekosistem Mangrove di Wilayah Kota Surabaya dan Sidoarjo Memanfaatkan Citra Landsat TM-5 [Distribution Mapping of Mangrove Ecosystem in Surabaya and Sidoarjo by Using Landsat TM-5 Imagery]

Jurnal Ilmiah Perikanan dan Kelautan ◽

10.20473/jipk.v3i1.11664 ◽

2019 ◽

Vol 3 (1) ◽

pp. 7

Author(s):

Zainul Hidayah

Keyword(s):

Mangrove Forest ◽

Mangrove Ecosystem ◽

Landsat Tm ◽

Critical Conditions ◽

Anthropogenic Factors ◽

Mangrove Forests ◽

Fish Ponds ◽

Industrial Sites ◽

Mangrove Ecosystems ◽

Distribution Mapping

Abstract Rapid developments on the coastal regions have become a major thread to mangrove ecosystems. The conversion of mangrove forest into fish ponds, housing and industrial sites make the area of this unique tropical ecosystem decline significantly in the last decade. To prevent further destruction of mangrove ecosystems due to human activities, conservation programs are needed. Therefore, information on mangrove's area as well as their distribution is needed. The main objective of this research was to demonstrate the ability of remote sensing and geographic information technology to provide reliable and accurate data on mangrove forest in Surabaya and thSidoarjo regions. A Landsat TM-5 imagery (acquisition date June 4 , 2009) data was utilized to produce the map. The results showed that in the 2009 period the area of mangrove forest in Surabaya and Sidoarjo was 378.19 Ha and 1236.42 Ha respectively. However, over 73.5% area of mangrove in Surabaya and 43.25% in Surabaya were under critical conditions. Anthropogenic factors and human influence were some of the main factors that cause the condition. Activities such as illegal and uncontrolled logging, conversion of mangrove's area and the lack of people's awareness in the importance of mangrove ecosystems were also problems that lead to the massive damage of mangrove forests.

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Ecology of the facultative phytotelmic crab Platychirarma buettikoferi (De Man, 1883) (Decapoda, Brachyura, Sesarmidae)

Crustaceana ◽

10.1163/15685403-bja10148 ◽

2021 ◽

Vol 94 (9) ◽

pp. 1043-1058

Author(s):

Marco Fusi ◽

Joseph Bayi ◽

Vanessa Ngo-Massou ◽

Ndongo Din ◽

Angela Sacchi ◽

...

Keyword(s):

Ecosystem Functioning ◽

Feeding Behaviour ◽

Mangrove Forest ◽

Mangrove Ecosystem ◽

Mangrove Forests ◽

Rapid Urbanization ◽

History Of ◽

Fauna Composition ◽

De Man ◽

Shed Light

Abstract The mangrove forests surrounding Douala, Cameroon, have a long history of human impact due to rapid urbanization, resulting in patches of true mangrove forest interspersed with areas dominated by the mangrove-associated Pandanus species. A survey carried out to assess the possible shift in crab fauna composition and dominance between mangrove and Pandanus dominated areas revealed an undescribed phytotelmic habitat for Platychirarma buettikoferi. This species was found colonizing the natural reservoirs of fresh water represented by Pandanus spp. Our results show P. buettikoferi to be ecologically dependent upon Pandanus spp., and absent on the mangrove floor and trees, strongly indicating a phytotelmic adaptation. Our data suggest that this species is a facultative phytotelmic species well adapted to Pandanus spp. dominated areas. Further studies on the reproductive biology and feeding behaviour of P. buettikoferi may shed light on this unique phytotelmic lifestyle and its role in mangrove ecosystem functioning.

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