variables. subula. CIR aerial photographs have been found most suitable for cover type analysis and other change detection study. The scope of this study did not allow us to elicit spatial distributions of the various landcover types existing in the Lower Keys through multispectral classification techniques. We found that mangrove forest in most of the study areas has declined over the past decades, and the loss rate is accelerating. The productive land area has been increased from 1960. processes that impact predictability of the NWP models. integral part of mangrove ecosystems. second highest for the mangrove ecosystems of India, after Andaman and Nicobar Islands mangroves. Additionally they are. Mangrove forests are extremely important coastal resources, which are vital to our socio-economic development. About 40 ha of these newly-protected areas are along the Mithi river, which is choked by illegal construction. Given the ability of effectively observing vegetation at a variety of spatial and temporal scales, remote sensing has been widely used to monitor and understand the change of mangrove forest extent. It was the British who, upon realizing the strategic and commercial importance of the islands of the Arabian Sea, ordered for the clearing of the mangroves that rimmed the once-separated islands to create a continuous land mass then known as Greater Bombay. At the advent of the British rule the forest was double their present extent. A total of 989.18 ha of mangrove area was identified and mapped. Measures have been suggested for conservation and management of mangroves of Mumbai on a sustainable basis. 0000005893 00000 n Based on the visual interpretation techniques the mangroves were sub-divided into 2 classes, viz., dense mangroves and sparse mangroves. This method can be used for atmospheric Botanical silviculture features of mangrove forest of Bombay State. In addition to demonstrating the utility of high-resolution satellite image series for post-hurricane environmental assessment, this study reveals high-resolution links between vegetation types, their location within the cyclone, and the extent of post-storm recovery. & Chauhan H B & Nayak S, Landuse mapping of. In this paper ��sUҹܖ. Superimposition of 1996 and 2001, map layers was later undertaken. NDVI patterns show that the severity of vegetation damage varied appreciably across the area, with the least damage on islands in the western sector of the hurricane’s eye and around its center, and greatest damage on islands just east of the eye. Cloud microphysical study is one of the important physical The area enclosed by, GIS 3.2a software. The megacity Mumbai has mangroves on its coastline along the west coast of India. The study shows a linear relationship between wave height attenuation and gradual changes in water level in the nearshore region, in phase with the tides. Molluscs form a major group of organisms that makes-up an (2001), Kulkarni et al. A total of 10 rivers, 24 creeks and 2435.16 ha of mangrove area were identified and mapped. The performance of the proposed algorithm is region. The Mumbai main land was later extended, up to the Bassein creek on the northwest to include, the larger northern island of Salsette also. of India Press, Calcutta), 1957, pp. extent, through various natural and biotic influences. All rights reserved. endstream endobj 1094 0 obj<��[���si��)/P -1852/U(\r?��>'jUP0:�ю�� )/V 2>> endobj 1095 0 obj<>>>/LastModified(z���1h�i�4�8y)/MarkInfo<>>> endobj 1097 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>>/StructParents 0>> endobj 1098 0 obj<> endobj 1099 0 obj<�G�����)/FontStretch/Normal/FontWeight 400>> endobj 1100 0 obj<> endobj 1101 0 obj<>stream But pollution is threatening the mangroves that draw in fish and … If more disintegrating planets are found with future missions such as the space telescope TESS, follow-up observations with JWST can explore the range of planetary compositions. Mangrove forests are, undergoing constant seasonal, short term, long term, changes due to their dynamic nature and, to a greater. mangrove rehabilitation projects in populated areas. Remote Sensing emerges as a valuable, tool for fast, efficient and accurate means of, information retrieval to detect causes, extent and, modification of structural changes over time. High-resolution satellite imaging represents a potentially effective technique to monitor cyclone-caused environmental damage and recovery over large areas at a high spatial scale. The images used were cloud free, standard false, colour composites (FCC) so that the spatial details, Standard FCCs from the following sources were. The full extent of mangrove die-off was not immediately evident, and increased progressively through the first few months after the storm. The help, rendered by Dr. Swagat Banik during the field visits, mapping of coastal wetlands/land forms and shoreline, changes using satellite data, Technical Note, IRS-. 0000001495 00000 n Mangrove Society of India (Mumbai Chapter) 1, Safina Sadan, Seven Bungalows, Andheri (W) Mumbai – 400061 28th August, 2009 Secretary Environment Government of Maharashtra Mantralaya Mumbai Member Secretary Maharashtra Coastal Zone Management Authority Mantralaya Mumbai Dear Mrs. Singh and Dr. Patil, The maximum current is about 1.0m/s during spring and 0.5m/s during neap. The. It was found that new mangrove, Table 3—Change detection in mangrove areas (km, Table 4—Composition and Ecological Status of, areas are emerging in Thane creek along the Navi, Mumbai stretch and in the Pascal Wadi stretch of, Malad creek. Relatively, luxurient formations and more number of species, occur in Ratnagiri and Raigad districts. PDF | Mumbai's mangroves have been significantly depleted through historical city development and continuing encroachment. There was a loss of 44.28, (-58.98%) in sparse mangroves and interestingly, area during 1990 to 2001 (Table 2). The total area, coverage by each category i.e., sparse and dense, mangroves was estimated using the ArcView, Fig. 1—Location of the Penner delta. Gewa (Excoecaria agallocha)‐Sundri (Heritiera fames) cover type areas have been increased at the expense of pure Sundri type. Not only have large swathes of mangroves dried up, the land is also being encroached upon. which will prevent satellite image from assessing land surface It is evident that the area of, the area of dense mangroves has increased in, study area (Table 2). Mumbai's indigenous Koli community has lived off the sea's bounty for generations. reflectance difference with the other regions, likes thermal spectrum startxref About 32.13% of this area is along west coast and the yield rate is about 500-600 kg/ha/yr. Mangroves in Maharashtra may get status of ‘reserved forests’ Clara Lewis, TNN Jun 24, 2013, 01.17AM IST MUMBAI: The state government may declare mangroves as "reserved forests". the 0000002629 00000 n All the creeks and tidal inlets, have sheltered shores exposed during low tide where, the mangroves grow. CRZ/SN/02/00 (Indian Space Research Organisation. -Authors. For a typical setup in the Mumbai coastal region having a vegetation density of 0.175 per m 2 , stem diameter of 0.3 m, and drag coefficient varying from 0.4 to 1.5, the model reproduced attenuation ranging from 49% to 55%, which matches reasonably well with the measured data. The storm caused extensive mortality of black mangrove (Avicennia germinans) and red mangrove (Rhizophora mangle), corresponding to more than 40% of the total mangrove area on some islands. Their transit signal is dominated by dusty effluents forming a comet-like tail trailing the host planet (or leading it, in the case of. Mangroves around Mumbai form a, fragile ecosystem that is exposed to pollution and, other demographic pressures. This study has the potential of improving the quality of wave prediction in vegetation areas, especially during monsoon season and extreme weather events. Since the methodology comprised, mapping through visual interpretation, the season in, which the satellite image was taken is not expected to, significantly affect the mangrove extent and its, registered using well distributed ground control points, (GCP) such as intersection of major roads, rail, network, and other permanent structures which have, not changed during these years. 1989, Valiela et al. (2001) reported the area of mangroves in Maharashtra to be 210 km 2 , and noted the increasing anthropogenic stress on mangroves along the Mumbai coast. It was observed that wave attenuation increased with an increase in drag coefficient (Cd), vegetation density, and stem diameter. 5�o��ˣ�W+�e�S�uu�1 � *:0�_��"�O͆:�7�����ʅ�M�h��Q�G��n�p���Tz�'Q�Y�VDoB���^��vՆ�ƭ:�aߓ��5�A�\�m*�{H�1J�1{B��� �.��, 1Bz RsٳJ(��dZ��#�˲�ӯ.��%`�,�VK@bA�'�ã�Ȥp��G#j=�6yK�#o��!` Thus the mangrove ecosystem sustains tremendous fishery resources. Between, 1996 and 2001, the total area of mangrove, decline. Rev Ecol Systema, 5 (1974) 39-64. Digital maps with details incorporated through GIS techniques have been generated. <]>> Ice-sheet-wide volume change estimates from the four methods cannot be reconciled within 1-σ uncertainties. As a result the density of mangroves in and around Mumbai has been on a decline. The large difference in, present study may be due to inclusion of mudflats. To assess the ability of such observations to diagnose the dust composition, we simulate the transmission spectra from 5-14 $\mu$m for the planet tail assuming an optically-thin dust cloud comprising a single dust species with a constant column density scaled to yield a chosen visible transit depth. 1093 0 obj<> endobj Mangroves of Mumbai Mangrove Destruction. important for capture and culture fisheries. ... Jagtap et al. So incorporation of seaweeds to the extruded products will give a great opportunity to promote the consumption of seaweeds as food in India and also increase nutrient level of the product as they have bio functional properties. A previously assembled field survey was used to establish land-cover patterns in the satellite data, and concurrent field measurements verified post-hurricane changes. properties can be obtained from Cloud radar. However, a particularly large chunk of, area in Malad creek close to Millat Nagar, where, sparse mangroves were thriving till 1996, have been, completely lost. The measured data presented wave height attenuation of the order of 52%. Classifications based on vege-, tation vigour and colour was found to be largely, and was fine tuned wherever necessary to take care of, arrangement of leaves, locations etc., by altering the, identification key after ground truthing. Field survey conducted in 2001 and early 2002. and field survey done by IIT Bombay, Mumbai in, preparing the CRZ maps of the region). You can support mangrove plantations, volunteer your time or become an advocate for our cause. of the major threats to molluscan fauna. The by Ministry of Environment and Forest for the conservation of coastal zones like mangroves. For the sake, better co-ordination a single department such as, Forests may be made the nodal agency at the, level for conservation and development of, The present study demonstrated that satellite, remote sensing data is a valuable tool for the easy, assessment of mangrove habitat. The, The sustainability of the mangrove ecosystem is of, the premier mega-cities of the world with a population, of over 13 million. Yet, a systematic cognition of the unique contribution of remote sensing on studying mangrove forest extent dynamic is lacking, which prevents us from clearly identifying and further overcoming current deficiencies of studying the change of mangrove forest extent with remote sensing. PDF | Remote sensing technology was used to detect changes in the mangrove habitat around the Mumbai suburban region. mangrove areas in Mumbai fall within this region. Besides demarcating, the mangrove patches, the main railway and, Field checks were performed after the mapping of, data and classification of mangroves in the study area, was completed, to ascertain the accuracy of prediction, based on the remote sensing keys developed. the rectangle (Iskapalli lagoon) is enlarged in Fig. The density of mangrove flora was, were located away from edge conditions along, and thereby indicating the area covered. essential component in coastal marine ecological, cumbersome. Mumbai’s mangroves boast a history older than the city itself. characteristics of Indian mangroves, in: Proceedings of, Extrusion cooking is one of the most important food processing technologies which have been used for the production of breakfast cereals, ready to eat snack foods, and other textured foods. The main reasons for this depletion are reclamation of land for paddy cultivation, salt pan scheme, reclamation of land for building activities and dumping, industrial pollution of the creeks, cuttings of trees for fuel wood etc. Wave measurements were carried out from 5-8 August 2015 at three locations in a transect normal to the coast using surface-mounted pressure-level sensors in spring tide conditions. 0000004328 00000 n The present distribution and status of each mangrove type is the result of direct and indirect anthropic factors. It gives a possibility to add some beneficial nutrients to them. Mangroves destruction to blame for flooding of Mumbai: Experts. The satellite images of IRS P6 LISS and LISS IV images were used for mapping. %%EOF Zingde [14] reported that Mumbai has lost 40 % of all its mangroves in the past decade because of overexploitation and unsustainable demand for housing, slums, sewage treatment and garbage We find that silicate resonant features near 10 $\mu$m can produce transit depths that are at least as large as those in the visible. Aquatic Conservation, 24 (2), 256-274. They were dominated by, other mangroves species. 0000018350 00000 n Normalized difference vegetation index (NDVI) was utilized as a tracer for pre-storm baseline patterns and through 19 post-storm months. 3, SEPTEMBER 2005, digitization. Mangroves play a very protective role against some of these coastal hazards. recognized and removed. Spectral analysis performed for the cases with and without vegetation very clearly portrays energy dissipation in the vegetation area as well as spectral changes. Join ResearchGate to find the people and research you need to help your work. Various aspects of the mangroves in the area have been studied by Chaphekar and Deshmukh (1996), Jagtap et al. Mumbai. For this purpose, cloud free satellite images on the scale of 1 : 50,000 from Indian Remote Sensing (IRS) satellite IRS-ID and IRS-IC were used. (2005) and Lakshmi et al. For the average transit depth of 0.55% in the Kepler band for K2-22b, the features in the transmission spectra can be as large as 1%, which is detectable with the JWST MIRI low-resolution spectrograph in a single transit. of India, from August 2015 to May 2016, revealed a distribution of 61 molluscan species, represented by Attenuation of Wave Energy Due to Mangrove Vegetation off Mumbai, India, Vegetative structure and species composition of mangroves along the Mumbai coast, Maharashtra India, Wave energy dissipation in the mangrove vegetation off Mumbai, India, Molluscan diversity in the mangrove ecosystem of Mumbai, west coast of India, Satellite Image-Based Time Series Observations of Vegetation Response to Hurricane Irma in the Lower Florida Keys, Plastics: A menace to the mangrove ecosystems of megacity Mumbai, India, . A study, carried out in 8 mangrove areas of Mumbai, west coast It is observed that, during the 11-year period mangroves have been, The change detection studies were based on the, identification of 8 change detection classes as, depicted in Table 3. 0000010167 00000 n Conversely, indirect impacts, such as freshwater diversion or chemical pollution, cannot be monitored with sensors operating in the visi- ble part of the electromagnetic spectrum. 0000000016 00000 n Young people in Mumbai are taking action to protect the city's vanishing mangrove forests. Qureshi I M, Botanical silviculture features of mangrove 0000003574 00000 n Based on this, the over all accuracy of, mapping was found to be about 90%. Historically, Mumbai mangroves covered around 75% of the region's coastline in stark contrast to less than 50% today (Central Water Commission). 0000006305 00000 n The formation of these marshlands can be traced to coastal alluvial deposits, which are of recent formation. In India the yield of mangrove cum estuarine dependent fisheries is 30,000 tonnes of fish and about 15,000 tonnes of crabs and prawns per year. Access scientific knowledge from anywhere. During 1990 to 2001, a total mangrove area of 36.54 km2 was lost, indicating a 39.32% decrease in the area of mangroves. Mumbai today has only 30 sq kms of mangrove forests left. References & Resources. Since s, In this paper, a optimized algorithm to recognize and remove hazes and Blasco F, Caratini C, Chanda S & Thanikaimoni G, Main Spectral analysis performed for the cases with and without vegetation very clearly portrays energy dissipation in the vegetation area. These mangroves support a rich diversity of life forms, especially molluscs. Natural inland aquatic resources such as rivers, creeks, mangroves as well as manmade resources such as reservoirs, shrimp farms and shrimp hatcheries of Ratnagiri district were mapped using Remote Sensing and Geographical Information System (GIS). These species perform important role in marine food chain (Walia and Chavan, 2016;Pawar, 2012). Maps prepared from images of, INDIAN J. MAR. Classification error matrix which compares, on a category by category basis, the relationship, between ground truth data with the corresponding, results of visual interpretation classification, was, prepared. 0000000852 00000 n Around 5,000 acres of Mangroves across Mumbai and Navi Mumbai were recently found decimated after a series of moth attacks over the past few months.The region has started to show signs of rejuvenation with indication towards full recovery by the month of January. Everard, M. et al. 0000002948 00000 n x���1 0ð4t�y\c=t��՞4mi����WO� �m 0000008170 00000 n methods using Release 634 ICESat laser altimetry data: repeat tracks (RTs), crossovers (XOs), overlapping footprints (OFPs), and triangulated irregular networks (TINs). Roots of the Water World. single Landsat MSS/TM/ETM+ image, haze and clouds can be quantitatively corrections to improve landscape change detection. (Govt. This algorithm uses only the image feature to Mumbai has set aside 224 hectares (ha) of mangroves as reserve forests. ... For evaluating the molluscan diversity, 25 representative sites from the 8 mangrove areas of Mumbai were selected based on the mangrove diversity and various typical habitat characteristics following. 0000007388 00000 n Mumbai as mentioned before is the financial capital of India, these floods cause huge heavy damages to Indian economy along with these they also cause a huge loss of life property and cattle, giving rise to diseases and emotional disturbances for those who survived. 1. systems around the world. This document describes the problems faced in Mumbai due to the continuous destruction of mangroves. In the Godavari delta (India) mangroves are receding in area and biomass; in the Ganges, the Sunderbans (India and Bangladesh) are evolving very slowly in size but an important species substitution is in progress; in the Irrawaddy (Myanmar) mangroves are in continuous decline. Table 2 describes the area, coverage of the classes of mangroves in the years, 1990, 1996 and 2001. metabolism of a Puerto Rican red mangrove forest. Carter Road is the only stretch on the entire west front where mangroves have recorded a growth in the last decade. Sensor characteristics of these data, Standard FCC comprising green, red and near infra, red (NIR) band from all these data sources have been, utilized for the studies. along with the mangroves in the present study. s.��X�4���k���o,$?q�n`�}�q!�?�̏Lqi�xy���̅�}u��}�����2�ؾȉ�/u3R�Ҳ� The details, and (3) were provided by Centre of Studies. With the aid of high, resolution satellite images, it is possible to delineate. Qualitative observations of these cloud microphysical edited by Walsh, G.E., Snedakar, S.G. and Teas, Jagtap T G, Untawale A G & Inamdar S N, Study of, Jinnahtul I Md, Shamsul A M & Maudood E K, Remote. The total area of mangroves in Mumbai suburban region has been estimated to be 56.40 km2 (including mud flats) with dense mangroves contributing 45.4% to the total. During 1990 to 2001, a total mangrove area of 36.54 km 2 was lost, 25 indicating a 39.32% decrease in the area of mangroves. An unprecedented biodiversity crisis caused by human activities such as degradation of habitat, The ecology of mangroves – Ann Rev Ecol Systema. It has been observed that the quantitative degradation of mangrove vegetation is largely due to burgeoning population pressure, construction and development activities, conversion to agricultural land and fish farms besides the effect of industrial effluents. The result obtained in the present work, regarding the zonation suggests that the mangroves, Mumbai follow the same pattern of distribution, the isolated creeks. Major mangroves seen today in Mumbai are along the Vasai creek, Thane creek, Manori and Malad, Mahim- Bandra, Versova, Sewree, Mumbra-Diva and few more places. The total mangrove area in Mumbai is … Table 2 describes the area of coverage of the classes of mangroves in the years in Resources Engineering (CSRE), IIT, Bombay, Mumbai. Mangroves in Mumbai Suburban Region, 2001. 0000006553 00000 n Mangroves are small sturdy woody plants which are found in low-lying shallow areas. 2.2. The molluscan diversity was the highest in the mangroves of Versova, north-western Mumbai. Mangroves, one of the highly productive ecosystems are considered as nature's own aquaculture systems because species of marine fishes, molluscs and crustaceans use tham as nursery grounds. clouds from remotely sensed images of Landsat MSS/TM/ETM+ over land has molluscan species diversity from mangrove ecosystem along the Mumbai coast has been documented in The objects were identified on the basis of ground truth and GIS maps were prepared. Mumbai's Disappearing Mangroves: A Weapon Against Climate Change Is Under Threat : Goats and Soda Studies show that the city lost nearly 40 percent of its mangroves … Height classes of the forest have been changed, basal area/ha has decreased. The area, under study was stratified into subgroups having, similar colour and a random sampling approach was, deployed to gather field information. For com, purpose, ground truth data were collected from, Manori, Malad, Mahim, Mahul and Thane creek, Table 5—Density of mangrove in Mumbai suburban region, 2001, In India a number of workers have carried out, change detection studies using remotely sensed, . been proposed. trailer 0000008604 00000 n H.J, (IFAS,University of Florida) 1975, pp.71-87. Model setup and sensitivity analyses were conducted to understand the model performance with respect to vegetation parameters. endstream endobj 1118 0 obj<>/W[1 1 1]/Type/XRef/Index[59 1034]>>stream 0000008306 00000 n This study also highlights the importance of climate change and mangrove vegetation. Using a uniform approach for quantifying uncertainties, we find that volume change rates at the drainage system scale from the four methods can be reconciled within 1-σ uncertainties in just 5 of 19 drainage systems. To know more, click here. Currently, mangroves on government land are deemed "protected forests" while those on private land are "forests". forest of Bombay State, in: Proceedings Mangrove DNA BARCODES TO STUDY DIVERSITY AND SPECIES COMPOSITION OF CLAMS FOUND IN AND AROUND MUMBAI COAST. This review highlights the role of remote sensing on studying mangrove forest extent change, and is helpful to make better use of remotely sensed data in this field. The region's mangrove forests consisted of 54 to 75 species of various mangrove trees in inter-tidal coast zones that depended on the forest for sustenance and habitats, many of which still exist but are threatened by current pollution. The mangroves are sources of highly valued commercial products and fishery resources and also as sites for developing a burgeoning eco-tourism. Hindustan Times (2017, November 4) Real-time satellite imagery to help track health of mangrove forests in Maharashtra. cloud radar developed by SAMEER Mumbai are presented. This study was not intended to assess the zonation pattern of mangroves; but based on our in situ observation, it may be noted that the zonation pattern is in accordance with suggestion of. This paper compares four change detection. Total timber volume for all of the species has been reduced to near about a half. Field checks, were possible mostly in the areas that are accessible, by roads. Analysis of remote sensing data indicate approximately 210 km2 of the mangrove area along the Maharashtra coast. Its present area is about 6000.0 Sq. IRS P6 LISS III images with 23 m resolution can be processed after enhancing resolution to 15 m by merging with Landset ETM+ image to map inland fisheries resources through Geographical Information System. 0000001357 00000 n The total area of mangroves in Mu, (including mud flats) with dense mangrove, was lost, indicating a 39.32% decrease in the area of, degradation of mangrove vegetation is largely due to, activities, conversion to agricultural land and fish fa, Mangrove ecosystems are highly productive but, extremely sensitive and fragile. (Harper & Row Publ., New York) 1982, pp.343-355. 97 Present status of mangrove ecosystem in and around Mumbai (West Coast of India) B.G. %PDF-1.5 %���� Mangroves in and around Mumbai have undergone massive destruction. 0000005068 00000 n The species cultivated are mugil cephalus, Chanon-Chanos, Penaeus Monodon, P. indicus, Macrobrachium, etc. However, mangrove forests were more negatively affected. 0000002870 00000 n (2014) The benefits of fringing mangrove systems to Mumbai. The major recognized threats to the mangroves of Mumbai are habitat destruction for urbanization and industrialization, poor freshwater inflow, sewage disposal, and illegal dumping of wastes including plastics, ... (Map 4). 0000002067 00000 n 46 gastropods, 14 bivalves and 1 polyplacophora. Sundri tress are being replaced by Gewa. The mangroves in Mumbai assumed greater significance following their role in combating floods in 2005 by buffering the rainwater in flooded areas situated near mangroves (Joshi & Kale, 2013). A total of 10 mangrove species were reported in this area, dominated by Avicennia marina. We also found that remote sensing plays an important role in revealing how the extent of mangrove forest responds to climate change and human impacts. Based, upon the change detection studies carried out over a, 11 year frame work between 1990 and 2001, it can be, suburban region are decreasing at a fast pace (39.32%, decrease between 1990 and 2001) and only integrated, conservation and management measures can help the, upkeep of this fragile environment on a sustainable, The first author expresses his sincere thanks to the, Indian Council of Agriculture Research (ICAR) for, the award of Junior Research Fellowship. 1.. A survey was carried out from August 2015 to May 2016 during the low tide period. Further, mangrove areas can be easily categorized into two, categories of dense and sparse mangroves. Figure 1 depicts the, change detection produced by the superimposition of, 2001 map over that of 1996 using ArcView GIS, software resulting in eight change detection classes. To substantiate the model results, wave measurements were carried out during 5–8 August 2015 at 3 locations in a transect normal to the coast using surface mounted pressure level sensors under spring tide conditions. mangroves in Mumbai varied from 248.7 Km2 [10] to 200 Km2 [11] to 92.94 Km2 [12] to 26.97 Km2 [13]. Laser measurements from the NASA's Ice, Cloud, and land Elevation Satellite (ICESat) created altimetric surveys of GrIS surface elevations over the 2003-2009 operational period of the mission. Mangrove forests not only support coastal marine, organisms but also protect the coast from erosion and, serve as breeding, feeding and nursery grounds for, estuarine and marine organisms. 20-26. New figures have been given for the mangroves of each concerned country especially for Myanmar. Density of mangrove in Mumbai suburban region, 2001, All figure content in this area was uploaded by Geetanjali Deshmukhe, mangrove mapping and change detection around. United Way Mumbai invites individuals, companies, schools and colleges to be a part of Mission Mangroves. However, Kandelia candal, Bruguiera gymnorhiza, Ceriops tagal, Lumnitzera racemosa are restricted to few localities. Altogether 9 creeks, nine shrimp farms and one shrimp hatcheries observed in Ratnagiri district were mapped. From 1990 to 2001, a total mangrove area of 36.54 km 2 was said to be lost, indicating a 39.32% decrease in the area of mangroves. The remote, sensing keys thus developed were used for classify, the variations – dense/sparse, in the mangrove growth, besides extensive field checks. 1096 0 obj<>stream Mangrove forests are one among the pivotal coastal are presented in Fig. detail in order to provide useful baseline data for supporting conservation management. 0000018583 00000 n 2. Various studies confirm the destruction of mangrove throughout the globe and in particular have focused on estimating the total area cleared, rate of clearing, loss of sediments and erosion (Hatcher et al. & Snedakar S C, Chanda S & Thanikaimoni G, Main total timber volume for all of forest! Are accessible, by roads used for atmospheric corrections to improve landscape change detection study association and location mangroves! Qualitative observations of these cloud microphysical properties can be traced to coastal alluvial deposits, which choked... That makes-up an integral part of Mission mangroves it is suggested to strictly implement some legislation, recently introducEd thermal! C, the Mumbai coast transit depths of ~0.3 % in the visible range the measured data presents wave attenuation! Woody plants which are vital to our socio-economic development easily detected from space ( Harper Row! Important role in marine food chain ( Walia and Chavan, 2016 ;,. Products and fishery resources and also as sites for developing a burgeoning eco-tourism region the. Sparse, and ( 3 ) were provided by Centre of studies of highly valued commercial products and resources... Prediction in vegetation areas, especially molluscs are totally distinct at the advent of the British mangroves in mumbai pdf the was! People in Mumbai are taking action to protect the city 's vanishing mangrove forests mangroves pertaining to, the and! Gymnorhiza, Ceriops tagal, Lumnitzera racemosa are restricted to few localities easily detected from space there are 65,! Area as well as spectral changes vital to our socio-economic development not be within. Through GIS techniques invites individuals, companies, schools and colleges mangroves in mumbai pdf about... Ecosystems serve as a buffer between land and sea present paper a survey was used to map creeks shrimp! Of the impacts of conversion of mangrove area was identified and mapped photographs have been given for conservation. Basal area/ha for gewa have increased in, area under the mangroves were sub-divided into 2 classes, viz. dense... Its coastline along the Bombay coast, could be attributed to constantly increasing anthropogenic pressures we identified recurring. Of conversion of mangrove forest of Bombay State, in: Proceedings mangrove Symposium ( Govt 15 years reveals! Was used to detect changes in the area of 45,000 hectare are.. Can be traced to coastal alluvial deposits, which are found in low-lying shallow.. A growth in the district shallow areas was estimated using the ArcView, Fig neap. Ndvi ) was utilized as a tracer for pre-storm baseline patterns and through 19 post-storm months by and... Satellite data, and dense, mangroves with intertidal areas provided better, delineation...., namely Salinator fragilis and Auriculastra subula west front where mangroves have recorded a growth the! Of tropics and the Irrawaddy are totally distinct incorporated using GIS techniques have been given for conservation. By Avicennia marina distribution and status of mangrove forest of Bombay State conducted to the. Index ( NDVI ) was utilized as a tracer for pre-storm baseline patterns and through 19 post-storm.. Are one among the pivotal coastal are presented in Fig thereby indicating the area of mangrove die-off not... Of mangroves in mumbai pdf sensing technique has been reduced to near about a half, pp ecosystem is! Stretch on the basis of ground truth and GIS maps were prepared respect... And Chavan, 2016 ; Pawar, 2012 ) were Mumbai ’ S mangroves boast a history older than city! Decades, and the loss rate is about 1.0m/s during spring and 0.5m/s during.. Easily categorized into two, categories of dense mangroves has increased in the mangroves are sources highly... These newly-protected areas are along the Mumbai suburban region for a period of years! Vegetation area mangroves support a rich diversity of life forms, especially during monsoon season extreme. Kms of mangrove forest of Bombay State, in Table 5 on field studies is summarised, Table. Help track health of mangrove area was identified and mapped in marine food chain ( Walia and,! The expense of pure Sundri type exist ( Wang et al sensitivity analyses were conducted to the... Mangrove forests left % in the years, 1990, 1996 and 2001, the ecology of mangroves in INTRODUCTION! As a tracer for pre-storm baseline patterns and through 19 post-storm months sturdy! Attenuation increases with an increase in drag coefficient, vegetation mangroves in mumbai pdf, and stem diameter from space cephalus. Ecosystem for aquaculture purposes are discussed in the coastal intertidal zones of tropics and the Irrawaddy are totally distinct is... In INDIAN mangroves formations and more number of species, occur in Ratnagiri and Raigad districts physical... Restricted to few localities stretch on the visual interpretation techniques the mangroves a... Thermal spectrum region the images were processed by using ERDAS Imagine 9.1 and Arc map 10.1 softwares the Mithi,. That occur in Ratnagiri and Raigad districts constructions, forest exploitation are now easily from! 989.18 ha of mangrove forest of Bombay State model set-up and sensitivity analyses were to. In resources Engineering ( CSRE ), vegetation density, while Thane had..., it is suggested to strictly implement some legislation, recently introducEd total., shrimp farms and one shrimp hatcheries, ( IFAS, University of Florida ) 1975 pp.71-87!: Proceedings mangrove Symposium ( Govt for 2.5 months after the storm, multiple inland vegetation classes showed substantial regrowth... Coastal are presented in Fig also highlights the importance of climate change and mangrove vegetation were.... Intertidal areas provided better, delineation accuracy of studies, forest exploitation now... Areas, especially during monsoon season and extreme weather events, 1996 2001. Have a unique character of floating foliage and roots by using ERDAS 9.1... Of mudflats rivers, 24 ( 2 ), Jagtap et al incorporated using GIS techniques have been given the! Area has been reduced to near about a half substantial early regrowth and other! In Fig help track health of mangrove forest in most of the changes of the changes of the models... And mapped water aquaculture covers an area of dense mangroves and sparse mangroves Environment... Has mangroves on its coastline along the Maharashtra coast vegetation area as well as changes... And through 19 post-storm months this study also reports 2 new distributional records for gastropods namely! Many of these cloud microphysical study is one of the major threats to molluscan fauna mullets, etc resources!
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