Journal articles: 'Sundarbans of Bangladesh'

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Rahman, MR, and M. Asaduzzaman. "Ecology of Sundarban, Bangladesh." Journal of Science Foundation 8, no. 1-2 (April 16, 2013): 35–47. http://dx.doi.org/10.3329/jsf.v8i1-2.14618.

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Sundarban is the largest mangrove wetland in the world. It covers an area of about 1mha, of which 60% is located in Bangladesh and the remaining western portion, comprising 40%, lies in India. Mangrove ecosystems are of great ecological significance in the tropical and sub-tropical coast. They protect our coast from heavy wind, tidal waves, coastal erosion and sea water intrusion, generate substantial quantities of fishery resources and provide many useful forestry products. The Sundarban ecosystem supports rich fisheries diversity. This ecosystem support 27 families and 53 species of pelagic fish, 49 families 124 species of demersal fish, 5 families and 24 species of shrimps, 3 families and 7 species of crabs, 8 species of lobster. A total 334 plants, 165 algal, 13 special orchids, 17 fern, 87 monocotyledon and 230 dicotyledon belonging to 245 genera and 75 families from the sundarbans and adjacent area are found available. The principal tree species is Sundry (Heritiera fomes) which covers about 73% to total landmass and the second species is Gewa (Excoecaria agallocha) which covers about 16% of total forest area. The plant species include 35 legumes, 29 grasses, 19 sedges, and 18 euphorbias. Of the 50 true mangrove plant species recorded throughout the globe, the Sundarbans alone contain 35 species. The magnificent among the animals on land is Royal Bengal Tiger, Spotted deer, barking deer and wild boars are there in plenty. Besides those jungle cats, fishing cat, civet cat, monkey, bengal fox, jackle, water monitor, monitor lizard and snakes are important faunal spp. Moreover, abundant of the Sundarbans are purple heron, pond heron, cattle egret, little egret, open billed stork, smaller adjutant stork, brahmini kite, spotted dove, rose ringed parakeet, crow pheasant, wood pecker, bee eater, drongo, pide myna, jungle myna, bulbul, tailor bird, magpie robin, sparrow etc., Otherwise, recorded that wild Buffalo, 2 species of deer, javan rhinoceros extinct and presently 2 species of amphibians, 14 species of reptiles 25 species of birds and 5 species of mammals are considered as endangered species. This paper is to produce a new assessment of the mangroves ecology of Sundarbans. DOI: http://dx.doi.org/10.3329/jsf.v8i1-2.14618 J. Sci. Foundation, 8(1&2): 35-47, June-December 2010

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Habib, Kazi Ahsan, Amit Kumer Neogi, Najmun Nahar, Jina Oh, Youn-Ho Lee, and Choong-Gon Kim. "An overview of fishes of the Sundarbans, Bangladesh and their present conservation status." Journal of Threatened Taxa 12, no. 1 (January 26, 2020): 15154–72. http://dx.doi.org/10.11609/jott.4893.12.1.15154-15172.

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Sundarbans, the largest mangrove forest of the world is located in Bangladesh and India. Studies done on the diversity of fish fauna in the Sundarbans mangrove forest of Bangladesh are sparse and patchy. Here we take the opportunity to provide an updated checklist of the fishes of the Sundarbans, Bangladesh based on primary and secondary data. Field surveys were undertaken in the aquatic habitat of Sundarbans core area along with its adjacent marine habitat from June 2015 to July 2017. Based on published information and primary observations the updated list of fishes covers a total of 322 species belonging to 217 genera, 96 families, and 22 orders. Additionally, four species of fishes, are newly reported in Bangladesh waters, viz., Mustelus mosis Hemprich & Ehrenberg, 1899; Lagocephalus guentheri Miranda Ribeiro, 1915; Carangoides hedlandensis Whitley, 1934; Uranoscopus cognatus Cantor, 1849. The global IUCN Red List status of each species has been enlisted. The updated checklist will constitute the reference inventory of fish biodiversity for the Sundarbans, a natural world heritage site.

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H Y, Zhang, Niu Z G, and Liu C. "Sundarbans Wetland Boundary Data (Bangladesh）." Journal of Global Change Data & Discovery 1, no. 3 (2017): 368. http://dx.doi.org/10.3974/geodp.2017.03.18.

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Gupta, Shimul. "Disturbance of Mangrove Forest Due To Climate Change: The Prospects of Sundarban." International Journal of Multidisciplinary: Applied Business and Education Research 2, no. 12 (December 12, 2021): 1306–13. http://dx.doi.org/10.11594/10.11594/ijmaber.02.12.02.

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Mangrove forest has a significant importance in protecting natural disaster, environmental sustainability and in local economy. In Bangladesh, only mangrove forest Sundarban also servicing for environmental sustainability, protecting tropical cyclone, local employment generation and so on. Thus, its natural properties are being hampered through people involvement and natural calamities. Moreover, Rapid population growth and climate change stimulating these disturbances of natural properties of Sundarbans. This paper aim at how climate change is disturbing mangrove forest in Bangladesh and how this disturbance may be threatful for future environmental sustainability. Interrelation between climate change and disturbance of Sundarbans has been established through various exiting literature review and for quantifying the amount of disturbance remote sensing data has been applied and future threat of environmental sustainability has been assessed by comparing regeneration capacity of Sundarban after a tropical cyclone and amount of disturbance by a tropical cyclone. Result found that climate change increasing the frequency of natural calamities and affecting significantly on mangrove forest due to its complex bio-diversity and strategic location before regeneration of disturbance. On the other hand, threat of mangroves as well as environment is associated with temperature rising, ice melting and sea level rising are increasing because of frequent occurrence, magnitude as comparing with regeneration capacity.

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Aziz, Md Abdul, and Md Anwarul Islam. "Population status and spatial distribution of saltwater crocodile, Crocodylus porosus in the Sundarbans of Bangladesh." Bangladesh Journal of Zoology 46, no. 1 (July 26, 2018): 33–44. http://dx.doi.org/10.3329/bjz.v46i1.37624.

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The Saltwater Crocodile, Crocodylus porosus is endangered in Bangladesh, and currently surviving in rivers and channels of the Sundarbans mangrove forest of the country. Very little information is available on this apex predator in the Sundarbans aquatic ecosystem, therefore a survey was carried out to assess population status and their spatial distribution. By surveying approximately 351 km of rivers of the Bangladesh Sundarbans during daytime between 2014 and 2015, a total of 42 individual crocodiles were recorded, with an overall encounter rate of 0.12 crocodiles (SE = 0.02, 95% CI = 0.08 - 0.18) per km of rivers. Based on this estimate, it is inferred that a population of approximately 140 crocodiles (95% CI = 90 - 190) could occur in the Bangladesh Sundarbans. The generalised linear model revealed statistically insignificant negative relationship of relative crocodile abundance with the salinity level (β = –0.067, SE = 0.057, p = 0.242) and protection status (β = –0.208, SE = 0.855, p = 0.808), and statistically insignificant positive relationship with the distance to human habitations (β = 0.004, SE = 0.039, p = 0.914). Disturbance by resource collectors, cargo vessels, and water pollution are the major threats to crocodile populations of the Sundarbans. The results of this study will be useful in future population monitoring to guide conservation management of saltwater crocodile in this important habitat.

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Mondal, Md Sanaul Haque. "Population an land cover dinamics of Sundarbans impact zone is Bangladesh." Landscape & Environment 11, no. 1 (April 14, 2017): 1–13. http://dx.doi.org/10.21120/le/11/1/1.

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Sundarbans is the largest mangrove forest of the world that lies in Bangladesh and India. This paper examined the correlation among population dynamics of Sundarbans impact zone (SIZ) from 1974 to 2011; impact of climate change on the forest; and changes in land cover of the forest from 1973 to 2010. Population size of SIZ was increased by 1.6 times between 1974 and 2011, whereas decreased by 2% during 2001 to 2011. During 1973 to 2010, water bodies, barren land and vegetated land reduced by 7.35%, 49.56% and 15.92% respectively; while grass land increased by 228.14% during the same period. But both population size and vegetated land declined during 2001 and 2011. This was due to the landfall of two severe cyclones in 2007 and 2009 through Sundarbans which resulted thousands of human casualties and out migration, and destruction of the forest. In addition, anthropogenic interventions like low flow from Ganges River and policy constraints also contributed to the demolition of Sundarbans. Thus, population growth, climate change and anthropogenic interventions are playing a decisive role to the depletion of forest resources from the Sundarbans mangrove forest.

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Khanom, Shahida, and Ralf Buckley. "Tiger tourism in the Bangladesh Sundarbans." Annals of Tourism Research 55 (November 2015): 178–80. http://dx.doi.org/10.1016/j.annals.2015.09.006.

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Barlow, Adam C. D., James L. D. Smith, Ishtiaq U. Ahmad, Abu N. M. Hossain, Mizan Rahman, and Alam Howlader. "Female tiger Panthera tigris home range size in the Bangladesh Sundarbans: the value of this mangrove ecosystem for the species’ conservation." Oryx 45, no. 1 (January 2011): 125–28. http://dx.doi.org/10.1017/s0030605310001456.

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AbstractBasic information required to conserve wild tigers Panthera tigris is lacking for the Bangladesh Sundarbans. The objectives of this study were therefore to estimate tiger home range size and obtain information on movement. Two adult female tigers were captured in the south-east of the Sundarbans and fitted with global positioning system collars. Mean home range sizes for the two tigers estimated with 95% minimum convex polygon and fixed kernel methods were 12.3 and 14.2 km2, respectively. A mean female home range size of 14.2 km2 would indicate a density for the south-east Sundarbans of seven adult females per 100 km2. The maximum distance moved by a tiger in 1 day was 11.3 km. Although preliminary these home range estimates indicate that the Sundarbans of Bangladesh has good quality tiger habitat relative to other tiger landscapes, highlighting the value of this mangrove ecosystem for the survival of this Endangered species.

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Mitra, Sangita, and Mahua Roy Chowdhury. "Possible range decline of Ganges River Dolphin Platanista gangetica (Mammalia: Cetartiodactyla: Platanistidae) in Indian Sundarban." Journal of Threatened Taxa 10, no. 13 (November 26, 2018): 12738–48. http://dx.doi.org/10.11609/jott.3746.10.13.12738-12748.

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Recent survey reports and observations from rivers in southern West Bengal (India) indicate the extirpation of Ganges River Dolphin (GRD) from the Indian Sundarbans. The present study undertaken during 2011–16 reviews the possible factors accountable for the disappearance of this obligatory freshwater cetacean from the major waterways of the Sundarbans, India and conclude that it is due to reasons of anthropogenic and geo-climatic origin. Sundarbans, the largest contiguous mangrove forest on earth encompassing almost 10,000km2 of India and Bangladesh is located at the head of the Bay of Bengal within 21.533–22.666 0N and 88.083–89.850 0E, of which 62% lies within Bangladesh and 38% in India (Spalding et al. 2010). The landscape is a network of mudflats and islands at the deltaic mouth of the rivers Ganga, Brahmaputra and Meghna created by accumulated sediments carried by the snow-fed Himalayan rivers and their tributaries along with anastomosing tidal water channels. Historic reports reveal the occurrence of GRD in the Sundarbans waters of both India and Bangladesh (Anderson 1879). Current data, however, confirms the disappearance of Platanista gangetica but there is continued occurrence of Orcaella brevirostris in the Indian part of the estuary. Analysis of causative factors in light of existing evidence validates the potential extirpation of Platanista from the majority of the Sundarbans in India, except for its persistence in only the westernmost segment in the lower reaches of river Hooghly as confirmed by this study. The present study also records the habitat preferences and limiting factors affecting GRD distribution, and maps the decline of its range.

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Rahman, Md Redwanur. "Environmental Impact Assessment of Sundarbans in Bangladesh." International Journal of Environmental Monitoring and Analysis 2, no. 3 (2014): 175. http://dx.doi.org/10.11648/j.ijema.20140203.17.

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Mukhopadhyay, Anirban, Parimal Mondal, Jyotiskona Barik, S. M. Chowdhury, Tuhin Ghosh, and Sugata Hazra. "Changes in mangrove species assemblages and future prediction of the Bangladesh Sundarbans using Markov chain model and cellular automata." Environmental Science: Processes & Impacts 17, no. 6 (2015): 1111–17. http://dx.doi.org/10.1039/c4em00611a.

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Saha, Tumpa, and Subrota Kumar Saha. "Systematics of Modern Benthic Foraminiferal Assemblages From the Deltaic Mangrove Ecosystem of Sundarbans." Journal of the Asiatic Society of Bangladesh, Science 47, no. 2 (December 31, 2021): 121–36. http://dx.doi.org/10.3329/jasbs.v47i2.57276.

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The contemporary intertidal foraminifera and estuarine environment information were collected from the four sites adjoining the deltaic mangrove environment in the Sundarbans. The marsh zones of the south-western coastal region of Bangladesh were examined for modern benthic foraminifera and to expound on the relationship of the foraminiferal assemblages with the environment. Due to high inaccessibility and remoteness, the taxonomic study of foraminifera and its depositional environment remains largely overlooked in the Sundarbans of Bangladesh. This study includes a detailed survey of depositional environment of these fluvio-deltaic to shallow marine sediments. The seventeen species belonging to fourteen genera representing nine families were recorded from surficial sediment of supratidal, intertidal, and dune environment of Kotka, Jamtala, Kochikhali, and Dimer char area. In the present study, these foraminiferal assemblages are characterized calcareous and agglutinated foraminifera. The Kotka beach is recognized as Nonionina assemblage zone, Jamtala beach designated as Ammonia assemblage zone, Kochikhali as Nonionina assemblage zone and Dimer char as Rosalina-Nonionina-Nonionella assemblage zone. The deposition of foraminifera is restricted to Sundarbans’ low to high marsh zone. J. Asiat. Soc. Bangladesh, Sci. 47(2): 121-136, December 2021

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Roy, Sajal, Habib Zafarullah, and Arunima Kishore Das. "Unwrapping the Memory Box." Asian Journal of Social Science 48, no. 3-4 (September 24, 2020): 375–94. http://dx.doi.org/10.1163/15685314-04803010.

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Abstract The Sundarbans, the largest mangrove forest in the world, has been undergoing significant ecological changes due to climate change-related weather events since the late 1990s. This forest, situated in south-west Bangladesh, provides livelihood services to 3.5 million people. The livelihood provision of the Sundarbans forest has been invented due to climate-induced disasters, such as cyclones, sea-level rise, salinisation, heat waves, and flooding. Considering the impacts of cyclones Aila and Sidr, this autoethnographic study closely examines the long-established perceptions of women and men about the resources of the Sundarbans. While doing so, this study uses feminist political ecology as a theoretical framework. This study examines how these two cyclones transformed lives and gendered livelihoods of the villagers of Shora in the Sundarbans forest.

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Chowdhury, Abdullah Harun, and Md Ali Akber. "Study Of Impacts Of Oil Spill On The Sundarbans Mangrove Forest Of Bangladesh." Journal of the Asiatic Society of Bangladesh, Science 41, no. 1 (June 16, 2015): 75–94. http://dx.doi.org/10.3329/jasbs.v41i1.46193.

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Studies were carried out on the recent oil spill in the Sundarbans of Bangladesh to findout the immediate impacts on the ecosystem of the Sundarbans after oil spilling. Morethan 500 km2 areas out of the total study area have been affected seriously by the oil spillcontamination on 9 December 2014. Recorded data of the physico-chemical conditions,oil content, productivity, diversity and abundance of phyto-zooplankton and benthos ofwater, and oil content in soil indicate that the water and soil of the Eastern part of theSundarbans were polluted by the oil contamination. Results also indicate that seedlings,mangrove algae, eggs and hatchlings of commercially valuable fishes, mudskippers, mudcrabs, snails, monitor lizards were affected due to oil spill. Regeneration of the Sundritrees; intertidal zone bird - ‘Masked finfoot’, common birds, fishing cat, otter, dolphins,crocodile would be affected due to the oil spill. Long term monitoring, in depth researchand proper implementation of all rules and regulations are necessary to save the fragileecosystem of the Sundarbans-the UNESCO declared world heritage site. Asiat. Soc. Bangladesh, Sci. 41(1): 75-94, June 2015

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Dasgupta, Susmita, Mainul Huq, Istiak Sobhan, and David Wheeler. "Sea-Level Rise and Species Conservation in Bangladesh’s Sundarbans Region." Journal of Management and Sustainability 8, no. 1 (February 4, 2018): 1. http://dx.doi.org/10.5539/jms.v8n1p1.

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This paper develops a methodology for identifying high-priority species conservation areas in Bangladesh’s Sundarbans region, an UNESCO World Heritage site, considering both species vulnerability and the likelihood of inundation by future sea-level rise (SLR). Our species vulnerability analysis develops a composite spatial vulnerability indicator based on total species counts, endangered species counts, endemicity, and four measures of extinction risk from the high-resolution range maps and conservation status assessments for 378 terrestrial vertebrate species provided by IUCN Bangladesh, IUCN International and BirdLife International.We extend the analysis by identifying areas where protection will fail if they are inundated by SLR in this century. We project SLR by 2100 at 120 cm, near the upper bound of the current consensus, and develop digital maps of the Sundarbans region that incorporate alternative assumptions about interim subsidence (8 cm, 35 cm) and deposition of alluvial sediment (0 cm, 40 cm). We overlay these maps with our composite species vulnerability map to produce SLR-risk-adjusted maps for priority assessment.While it would be highly desirable to protect all species of Sundarbans, resource scarcity may necessitate focusing protection on the highest-priority areas. Our analysis indicates that the highest-priority conservation status should be assigned to Sundarbans core region that has both high species vulnerability and the lowest likelihood of inundation in this century. We also identify other critical areas in four echelons of descending priority, depending upon their likelihood of inundation by sea-level rise. We hope that our methodology will contribute to cost-effective conservation management in the Sundarbans region.

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Uddin, Md Nagim, Tutul Kumar Saha, Myiesha Rayzil Hossain, SM Fakrul Islam, and Zakir Hossain. "Constraints to climate change adaptation and livelihood challenges: perspectives from the Sundarbans fishers' community in Bangladesh." Asian Journal of Medical and Biological Research 8, no. 2 (June 26, 2022): 103–14. http://dx.doi.org/10.3329/ajmbr.v8i2.60083.

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Fishers' are first-line observers of changes in the Sundarbans region and are among the first to be affected by the changes that occurred. In the Sundarbans fishers' communities, transformations of society have always been a part of life. In contrast, environmental changes were always interim and reversible, allowing them to understand and identify with the Sundarbans ecosystems as food and life providers. In this study, fishers' observations on climate change impacts and their livelihoods were compiled and analysed using a structured questionnaire in accordance with the tenets of grounded theory. The observations of fishers from the region of the Sundarbans demonstrated a rise in the frequency of extreme weather events caused by rising temperatures and changes in the weather pattern. Physical components such as rainfall, coastal erosion, sea-level rise, siltation alterations in fish species distribution ranges, and migratory spawning behaviours were also affected by changes in the region's weather and climate. As salinity levels rose, the diversity and productivity of river ecosystems were affected, particularly in the most vulnerable areas. As a result, river freshwater flow decreased over time. A high rate of siltation in rivers and river mouths was considered another major concern that led to seasonal flooding due to its low freshwater upstream flow rate. The Sundarbans region provides a vast array of resources for diversifying fishers' livelihoods, but climate change is diminishing these alternatives due to more frequent catastrophic events. Specifically, climate change limits the resilience of fishers' communities, restricting opportunities for diversification or forcing them to leave their homes or villages. Climate change generated an environment that was generally unfavourable for all fishing communities. In order to survive in an unfavourable environment, the social well-being of fishers (mostly women and children) was negatively impacted by a variety of challenges, including disease, lack of potable water, malnutrition, sanitary difficulties, lack of electricity, lack of food and clothing, lack of proper medical care, and so on. To evaluate the effects of climate change on fisheries in the study area, the biodiversity, abundance, and production of most freshwater species are drastically reduced due to the destruction of spawning grounds, a transition in the spawning season, and the obstruction of fish migration. The findings of this study show that the climate and livelihood conditions of fishers in the Sundarbans region have changed significantly over the past few decades. Regardless of GOs and NGOs taking the required steps, proper implementation of interdisciplinary adaptive policy and regular monitoring in the Sundarbans fisher's community in Bangladesh could effectively reduce climate change impacts and improve livelihood conditions. Asian J. Med. Biol. Res. 2022, 8 (2), 103-114

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Aziz, MA, MA Islam, and J. Groombridge. "Spatial differences in prey preference by tigers across the Bangladesh Sundarbans reveal a need for customised strategies to protect prey populations." Endangered Species Research 43 (September 17, 2020): 65–73. http://dx.doi.org/10.3354/esr01052.

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The Sundarbans is the only mangrove habitat in the world to support tigers Panthera tigris, whose persistence there is believed to be dependent on a very limited number of prey species. Conservation managers therefore need to understand how tigers utilise available prey species on a spatial scale in order to formulate a prey-based protection strategy for this global-priority tiger landscape. A total of 512 scat samples were collected during a survey of 1984 km2 of forest across 4 sample blocks in the 6017 km2 of the Bangladesh Sundarbans. Analysis of scat composition and prey remains reliably identified 5 major prey species, of which spotted deer Axis axis and wild pig Sus scrofa contributed a cumulative biomass of 89% to tiger diet. Tiger preference for prey species was highly skewed towards spotted deer and wild pig, but the relative contribution of these 2 species differed significantly across the 4 study areas, which spanned the Sundarbans, demonstrating important spatial patterns of tiger prey preference across the Sundarbans landscape. Given the comparatively limited number of prey species available to support the dwindling tiger population, different strategies are needed in different parts of the Sundarbans to support tiger populations and to protect spotted deer and wild pig populations from unabated poaching.

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Karmoker, Kajol, and Feroz Ahmed. "Promoting Green Behavioral Intentions of the Tourists for the Growth of Sustainable Tourism Development in the Sundarbans of Bangladesh." International Journal of Business and Management 17, no. 1 (December 14, 2021): 52. http://dx.doi.org/10.5539/ijbm.v17n1p52.

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The Sundarbans, the single largest mangrove forest of the world is one of the prime tourism destinations of Bangladesh. Due to lack of awareness and proper planning, tourism is causing severe threat to the ecosystem of the Sundarbans. It is therefore utmost important to ensure that the natural environment of the Sundarbans doesn't deteriorate further. Promoting green tourism may be a viable way to achieve it. This study was designed to identify the ways to promote green (environment-friendly) behavior among the stakeholders, especially the tourists – traveling into the Sundarbans. A convenience sampling technique was used in the study that included both domestic and foreign tourists. A structured questionnaire was developed that incorporated 30 Likert-scale questions based on four variables, namely 'awareness program', 'incentive programs', 'interpretation' and 'government interventions'. The four variables and their corresponding items were developed in the light of extant literature and adopted based on the socio-cultural atmosphere of Bangladesh. The survey was conducted from October 2019 to February 2020 and 320 valid responses were obtained. Multiple regression analysis was employed to test the proposed research model. The result shows that out of four independent variables, government intervention and incentive programs are significantly influential factors in achieving the green behavior of the tourists. The study findings are aligned with the previous studies. The findings will provide guidelines to the tourism service providers, destination hosts, local communities, government bodies and policy makers in achieving green behavior of the tourists that in turn will yield sustainable tourism in the Sundarbans.

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Siddqui, A. S. M., and Abul Khaira. "Regeneration Status and Identification of Heart Rot Disease of Pasur (Xylocarpus Mekongensis) Tree in the Sundarbans of Bangladesh." Indian Journal of Forestry 35, no. 4 (December 1, 2012): 435–42. http://dx.doi.org/10.54207/bsmps1000-2021-029suy.

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Regeneration status differs place to place and species to species in the Sandaracs. It depends on the different ecological conditions of the Sundarbans. The locations are Baniakhali, Chunkuri, Kalabogi, Kasiabad, Bojboja and Supati. Number of trees, seedlings up to 3 years and saplings above 3 years of all major species were recorded in each plot. The highest regeneration were recorded at Baniakhali 76997 per/ ha, 37333per/ ha at Supati and lowest at Chunkuri 34666 per/ ha. Pasur (Xylocarpus mekongensis) is a valuable timber yielding and highly useful tree species in the Sundarbans. It has great commercial value. It is found mainly in the saline areas on the North-Western part of the Sundarbans in association with other mangrove species. Pasur, a commercially valuable deciduous multipurpose tree species is affected by heart rot problem. As a result, it is characterized by the gradual death of the crown starting first with small twigs and then gradually larger branches die and lignin portion of the stem becomes useless. Heart rot is generally regarded as a condition locally known as “dhor.”. The fruit body, gall and cankers are developed on the different portion of the standing trees. It was observed and enumerated heart rot infestation status of different locations in the Sundarbans. It is affected (Less than 50% top dead and more than 50% top dead or heart rot (Dhor observed) severely at Kalabogy, Baniakhali and Bozbosa are heavily affected in the moderately saline water zone. The result shows that the percentage is 64%, 62% and 60% respectively. Then followed by Kasiabad 54% and Chunkuri 48%. Very low number of trees are affected at Supati covering 17% in the fresh water zone of the Sundarbans. The factors which causing the diseases are very difficult to identify. The International Mycological Institute, UK, confirmed two fungal pathogens. They identified two fungal pathogens for causal organism namely Phaenerochaete subglobosa and Schizophyllum commune and locally identidied Ganoderma applanatum. But some biotic and abiotic factors are responsible for the causes. The wood loss becomes a very high rate which shall impact the total loss of economy and the Sundarbans ecosystem. So, to overcome the disorder and disease special monitoring, care, multidisciplinary research and management system are to be required to formulate and eradicate the problem in the Sundarbans.

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Vivekanandan, Jayashree. "Scratches on our sovereignty?" Regions and Cohesion 11, no. 1 (March 1, 2021): 1–20. http://dx.doi.org/10.3167/reco.2021.110102.

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English Abstract: The article critically examines the conservation politics in a transboundary protected area (TBPA) in South Asia, the Sundarbans mangrove forests in Bangladesh and India. It explores the reasons why, despite collaborative measures by the two states, conservation has largely tended to conform to sovereignty practices, making it top-down and exclusionary. This makes the very demarcation of territory for protected areas an intensely political act with significant implications for social equity. The article examines the cultural politics of conservation since contestations to state power have often entailed the articulation of popular sovereignty in the Sundarbans. It argues that the social sustainability of conservation will critically hinge on how issues of resource access and governance are framed, negotiated, and addressed.Spanish Abstract: El artículo examina críticamente la política de conservación en el Área Protegida Transfronteriza (APT): los Sundarbans en Bangladesh e India. Explora por qué, a pesar de la colaboración bilateral, la conservación ha tendido en gran medida a ajustarse a prácticas de soberanía vertical y excluyente. La sola demarcación territorial de las APT, se convierte en un fuerte acto político con implicaciones signifi cativas en la equidad social. El artículo examina la política cultural de la conservación, ya que las protestas al poder del Estado a menudo tienen implicaciones en la articulación de la soberanía popular en los Sundarbans. Argumenta que la sostenibilidad social de la conservación dependerá fundamentalmente de cómo se enmarquen, negocien y aborden las cuestiones de acceso a los recursos y su gobernanza.French Abstract: L’article analyse de manière critique la politique de conservation dans une aire protégée transfrontalière (APT) en Asie du sud, la forêt des mangroves des Sundarbans au Bangladesh et en Inde. Il explore les raisons pour lesquelles, malgré les instruments de coopération entre les deux États, la conservation a adopté des pratiques de souveraineté étatique qui l’ont rendue erticale et exclusive. La démarcation du territoire des aires protégées est un acte profondément politique qui a des implications en matière d´égalité sociale. L’article examine la politique de conservation à travers des actes contestaires vis-à-vis du pouvoir étatique qui ont souvent favorisé une articulation de la souveraineté populaire dans les Sundarbans. Il met en évidence que la durabilité sociale de la conservation dépend de l’encadrement, de la négociation et de la promotion des thèmes d’accès aux ressources et de la gouvernance.

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Mukhopadhyay, Anirban, Parimal Mondal, Jyotiskona Barik, S. M. Chowdhury, Tuhin Ghosh, and Sugata Hazra. "Correction: Changes in mangrove species assemblages and future prediction of the Bangladesh Sundarbans using Markov chain model and cellular automata." Environmental Science: Processes & Impacts 17, no. 11 (2015): 1990–91. http://dx.doi.org/10.1039/c5em90041g.

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Correction for ‘Changes in mangrove species assemblages and future prediction of the Bangladesh Sundarbans using Markov chain model and cellular automata’ by Anirban Mukhopadhyay et al., Environ. Sci.: Processes Impacts, 2015, 17, 1111–1117.

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Chowdhury, A., A. Naz, S. Bhattacharyya, and P. Sanyal. "Dynamics of salinity intrusion in the surface and ground water of Sundarban Biosphere Reserve, India." IOP Conference Series: Earth and Environmental Science 944, no. 1 (December 1, 2021): 012061. http://dx.doi.org/10.1088/1755-1315/944/1/012061.

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Abstract Sundarban is the world’s largest transboundary contiguous mangrove ecosystem and home of the mangrove dwelling tigers. Sea level rise is destabilizing this ecosystem which is experiencing a rising salinity in surface and ground waters (shallow aquifer). In this study ground water salinity was investigated across Sundarbans and surface water seasonal salinity changes has been investigated along East-west gradient in the region. Statistically significant seasonal as well as spatial variations has been observed in the surface water salinity pattern across this gradient. The post monsoon average surface water salinity was 10.58 ppt while in pre-monsoon it was 27.31 ppt. Ground water salinity was lowest (0.95 ppt) in monsoon while highest in the pre-monsoon season (7.4 ppt). There was a clear east-west gradient in the surface salinity distribution across the delta, indicating a source of fresh water in the eastern corner, bordering Bangladesh. Increasing salinity indicate impact on mangrove diversity with salinity sensitive species (Heritiera fomes, Nypa fruticans) limited to the eastern corner while salinity resilient species (Avicennia marina and Phoenix paludosa) were dominating the western and central part of the Indian Sundarbans. Mangrove associate Acanthus ilicifolius and Heliotropium currasavicum were abundant in the forests under anthropogenic disturbances.

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Aziz, Abdul, and Ashit Paul. "Bangladesh Sundarbans: Present Status of the Environment and Biota." Diversity 7, no. 3 (July 10, 2015): 242–69. http://dx.doi.org/10.3390/d7030242.

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Hoq, M. Enamul. "Sustainable use of mangrove fisheries resources of Sundarbans, Bangladesh." Tropical Agricultural Research and Extension 6 (December 30, 2003): 113. http://dx.doi.org/10.4038/tare.v6i0.5449.

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Islam, Shafi Noor, and Albrecht Gnauck. "Water salinity investigation in the Sundarbans rivers in Bangladesh." International Journal of Water 6, no. 1/2 (2011): 74. http://dx.doi.org/10.1504/ijw.2011.043318.

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Akber, Md Ali, Muhammad Mainuddin Patwary, Md Atikul Islam, and Mohammad Rezaur Rahman. "Storm protection service of the Sundarbans mangrove forest, Bangladesh." Natural Hazards 94, no. 1 (June 19, 2018): 405–18. http://dx.doi.org/10.1007/s11069-018-3395-8.

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Sharmin, Arifa, and Mahmood Hossain. "Do the Soil's Physiochemical Properties Fluctuate with Season and Soil Depth in the Ecological Critical Areas (ECA) of Sundarbans, Bangladesh?" Journal of Agriculture and Crops, no. 91 (October 15, 2022): 9–19. http://dx.doi.org/10.32861/jac.91.9.19.

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The Ecological Critical Areas (ECA) of Sundarbans is located outside of Sundarbans Reserved Forest at 10 km extended landward, which is threatened to reach a critical state due to human activities. Aquaculture is the dominant land use in the ECA and the tree coverage is going to deplete at an alarming rate due to the deterioration of site conditions, which significantly influence the productivity of aquaculture and the establishment of the plantations on the dikes of the fishpond. The present study aimed to assess some static and dynamic soil physiochemical properties of the fishpond dikes located in the ECA of Sundarbans. Soil samples were collected from the western part (Satkhira district) of ECA of Sundarbans during the pre-monsoon and post-monsoon seasons. The bulk density, pH, and electrical conductivity of the studied areas varied from 1.05-1.18 g/cm3, 7.30-8.54, and 1.05-2.13 ms/cm respectively. However, the concentration of available form of Nitrogen, Phosphorus, Potassium and Sodium were 0.5-0.72 mg/g, 0.03-0.06 mg/g, 10.5-12.88 mg/g and 16.89-20.53 mg/g respectively. Some of these parameters showed significant variation among the zones, seasons, and soil layers. However, the stock of available nitrogen, phosphorus, potassium, sodium and organic carbon varied from 52.5- 84.96 kg/ha, 3.15-7.08 kg/ha, 1.10-1.52 t/ha, 1.77-2.42 t/ha and 173.47-199.43 t/ha respectively. As pond soil provides all the important nutrients with water, the findings of this study will help to take proper management interventions for the dike greening initiatives and productivity of fishponds in the ECA of Sundarbans.

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Sarker, Ashish Kumar, Md Anwarul Haque, Mohammad Sayful Islam, Md Ajijur Rahman, and Md Anwar Ul Islam. "Exploration of antibacterial metabolites producing marine bacteria from Sundarbans, Bangladesh." Bangladesh Pharmaceutical Journal 18, no. 1 (June 1, 2015): 53–60. http://dx.doi.org/10.3329/bpj.v18i1.23516.

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To combat the increasing numbers of antibiotic resistant strains of pathogenic bacteria new source of antibacterial agents are desperately needed. This study was aimed to discover new marine bacteria having antibacterial activity from marine soil samples of Sundarbans, Bangladesh. Using starch-casein-nitrate-agar medium thirty nine marine bacteria colonies were isolated as pure isolates from nine marine soil samples. Each of the isolates was preserved in both short term and long term basis. Based on the aerial and substrate mycelia color of the isolates they were grouped into five color series and were screened for their antibacterial activity against a series of test bacteria. Among thirty nine pure isolates twenty four isolates (61.5%) exhibited moderate to high activity against three grampositive and four gram-negative bacteria. This is due to the antibacterial metabolites secreted in the medium by most of the isolates. It suggested that Sundarbans may be an interesting, valuable and potential source for the exploration of novel marine bacteria with the potential to yield useful new antibacterial secondary metabolites of pharmaceutical interest.Bangladesh Pharmaceutical Journal 18(1): 53-60, 2015

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Md. Hasanuzzaman, Abul Farah. "Mud Crab (Scylla spp.) Aquaculture in the South-West Sundarbans Region of Bangladesh." IRAQI JOURNAL OF AQUACULTURE 11, no. 1 (2014): 57–83. http://dx.doi.org/10.21276/ijaq.2014.11.1.5.

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ANSARI, KAPULI GANI MOHAMED THAMEEMUL, and PUNYASLOKE BHADURY. "An updated species checklist for free-living marine nematodes from the world’s largest mangrove ecosystem, Sundarbans." Zootaxa 4290, no. 1 (July 6, 2017): 177. http://dx.doi.org/10.11646/zootaxa.4290.1.11.

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The present study provides an updated species checklist for free-living marine nematode species from the world’s largest contiguous mangrove ecosystem, the Sundarbans (India and Bangladesh). The species checklist includes information available from Sundarbans from the 1950s to the present (2016), using the most recent taxonomic classification of nematodes. The species list contains 179 species in 84 genera and 29 families. Four families, Xyalidae (22 species), Linhomoeidae (18 species), Desmodoridae (16 species) and Chromadoridae (15 species) were most speciose. The genera Halalaimus (9 species), Sabatieria and Daptonema (8 species each) were most species rich; 50 genera were represented by just a single species. Six species are new distributional records for Indian waters. The species checklist is the most extensive list of free-living marine nematodes from the Sundarbans mangrove ecosystem to date and provides a framework for studying biogeography of free-living marine nematodes from mangrove ecosystems globally.

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Siddqui, Asm, and Akramul Islam. "Population Dynamics of major Mangrove species in the Sundarbans, Bangladesh." Indian Journal of Forestry 42, no. 4 (December 1, 2019): 317–22. http://dx.doi.org/10.54207/bsmps1000-2019-8l2tin.

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Growth dynamics of major mangrove species in three salinity zones of the Sundarbans was conducted by establishing permanent sample plots (PSPS) by the Mangrove Silviculture Division of the Bangladesh Forest Research Institute. Multistage sampling process was applied to collect data from 33 Permanent Sample Plots (PSPs), area of each PSP being 400 m2. Total number of seedlingh, saplings in each saline zone and total regeneration percentage of each species in the PSPs was worked out.

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Ul Hasan, Mohammad Ashraf, and Sufia Akter Neha. "The Himalayan Crestless Porcupine Hystrix brachyura Linnaeus, 1758 (Mammalia: Rodentia: Hystricidae): first authentic record from Bangladesh." Journal of Threatened Taxa 11, no. 12 (September 26, 2019): 14624–26. http://dx.doi.org/10.11609/jott.4861.11.12.14624-14626.

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We report the first confirmed record of the Himalayan Crestless Porcupine Hystrix brachyura (Linnaeus, 1758) in Sundarbans mangrove forest, Bangladesh. An individual was observed and photographed in May 2018. The finding ensures the occurrence of this porcupine in a new habitat and stretches this species’ geographic distribution.

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Biswas, Camellia, and Sharada Channarayapatna. "Marginalization of Sundarbans’ Marichjhapi: Ecocriticism Approaches in Amitav Ghosh’s The Hungry Tide and Deep Halder’s Blood Island." Literature 2, no. 3 (August 12, 2022): 169–78. http://dx.doi.org/10.3390/literature2030014.

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The article identifies the Sundarbans landscape as a ‘marginal scape’ in the context of the Marichjhapi Massacre of 1979. It applies the conservationist vs. environmental (in)justice approach of ecocriticism to Amitava Ghosh’s The Hungry Tide and Deep Halder’s Blood Island: An Oral History of Marichjhapi Massacre. It relates the idea of environmental discrimination and injustice based on caste to the misallocation of the ‘Commons’. For the Marichjhapi Dalit Refugees, the Sundarbans landscape and its ecological attributes become an essential medium in reconstructing their layered identity after migrating from Bangladesh to Sundarbans, which becomes marginalized. The paper argues that the management of environmental resources/landscapes has always been in the hands of the rich, entwined with Brahminical hegemony, who try to impose political geography over ecological systems to suppress the dispossessed. It concludes by comprehending that any justice-based approach (here, social and environmental) still favours non-human beings and ends up causing a multi-layered crisis for marginalized human populations.

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Bhattacharyya, Shatarupa. "Localising Global Faiths The Heterodox Pantheon of the Sundarbans." Asian Review of World Histories 5, no. 1 (June 29, 2017): 141–57. http://dx.doi.org/10.12773/arwh.2017.5.1.141.

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This essay foregrounds the Sundarbans, a littoral zone in India that moves between sea and land and is a site of global history. It studies the pantheon of divinities, especially Bonbibi (Lady of the Forest), a mythical figure of Muslim origin. Such deities are worshipped by both Hindus and Muslims exclusively in the Sundarbans (Beautiful Forest) that straddles the state of West Bengal (India) and the nation-state of Bangladesh. It demonstrates how the Sundarbans, during Islamisation in the medieval era actively adapted, as against passively adopting, the global faith of Islam to suit the local needs of the people there. The result was a religious worldview that was not quite Islamic, but not quite Hindu either, but rather a singular faith system unique to the region and suited to meet the needs of the people there. And because this faith system does not conform to the orthodox beliefs of either Hinduism or Islam, it can accurately be described as a heterodox pantheon.

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Islam, Md Wasiul, Md Mozahidur Rahman, Md Sayed Iftekhar, and Md Golam Rakkibu. "Can community-based tourism facilitate conservation of the Bangladesh Sundarbans?" Journal of Ecotourism 12, no. 2 (June 2013): 119–29. http://dx.doi.org/10.1080/14724049.2013.820309.

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Sarker, Ashish, Md Haque, Mohammad Islam, Md Rahman, and Md Islam. "Isolation and Characterization of a Marine Bacterium from Sundarbans, Bangladesh." British Microbiology Research Journal 6, no. 6 (January 10, 2015): 348–57. http://dx.doi.org/10.9734/bmrj/2015/15907.

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Biswas, Shekhar R., Junaid Kabir Choudhury, Ainun Nishat, and Md Matiur Rahman. "Do invasive plants threaten the Sundarbans mangrove forest of Bangladesh?" Forest Ecology and Management 245, no. 1-3 (June 2007): 1–9. http://dx.doi.org/10.1016/j.foreco.2007.02.011.

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Wahid, Shahriar Md, Mukand S. Babel, and Abdur Rahman Bhuiyan. "Hydrologic monitoring and analysis in the Sundarbans mangrove ecosystem, Bangladesh." Journal of Hydrology 332, no. 3-4 (January 2007): 381–95. http://dx.doi.org/10.1016/j.jhydrol.2006.07.016.

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Awal, M. A., W. H. G. Hale, and B. Stern. "Trace element concentrations in mangrove sediments in the Sundarbans, Bangladesh." Marine Pollution Bulletin 58, no. 12 (December 2009): 1944–48. http://dx.doi.org/10.1016/j.marpolbul.2009.08.016.

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Hossain, Abu Naser Mohsin, Antony J. Lynam, Dusit Ngoprasert, Adam Barlow, Christina Greenwood Barlow, and Tommaso Savini. "Identifying landscape factors affecting tiger decline in the Bangladesh Sundarbans." Global Ecology and Conservation 13 (January 2018): e00382. http://dx.doi.org/10.1016/j.gecco.2018.e00382.

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Razzaque, Jona. "Payments for Ecosystem Services in Sustainable Mangrove Forest Management in Bangladesh." Transnational Environmental Law 6, no. 2 (February 2, 2017): 309–33. http://dx.doi.org/10.1017/s2047102516000376.

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AbstractIn the context of sustainable development, both developed and developing countries are implementing policies that encourage economic growth, environmental protection and social well-being in resource decisions. According to the 2012 Rio+20 Declaration, market-based instruments that complement regulations can offer an economically efficient push to sustainable growth. Market-based instruments, such as payments for ecosystem services (PES) and other market incentives, may play a crucial role in enhancing the livelihoods and wider well-being of poor people. However, for economic tools such as PES to prove valuable in managing natural resources, the decision-making and implementation processes must integrate adequate rights allocation and participatory mechanisms. This article examines forest ecosystem services in the context of the mangrove reserve forest of the Sundarbans in Bangladesh. It is a UNESCO World Heritage site and one of the largest remaining areas of mangroves in the world with an exceptional level of biodiversity. The article argues for a more realistic and equitable approach to PES projects in Bangladesh. It underscores the need for effective participatory tools, third-party monitoring and multi-service PES schemes to improve multiple mangrove ecosystem services in the Sundarbans.

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Uddin, Sufia. "Shared Traditions for Living in the Sundarbans." Current History 120, no. 825 (April 1, 2021): 146–51. http://dx.doi.org/10.1525/curh.2021.120.825.146.

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Communities of landless Hindus and Muslims in the Sundarbans, a mangrove-forested river delta sprawling across the Bangladesh–India border, have common class-based grievances and concerns for the imperiled ecosystem that transcend their religious differences. Their shared beliefs and practices include veneration of the same Muslim saint, Bonbibi (the Lady of the Forest), who is regarded as a protector of the forest and the landless poor who depend on it to eke out a livelihood. Their ecumenical practices reflect religious ideals shaped by the complex, delicate ecosystem that sustains them. This tradition is not a muddled synthesis of Islam and Hinduism; it is rooted in the history of settlement in the region.

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Rahman, Farjana. "Wildlife Conservation and Mangrove Interpretation Centre, Karamjal, Sundarban: A Case Study of a Site-Specific Architectural Project in a Mangrove Forest." Nakhara : Journal of Environmental Design and Planning 17 (October 18, 2019): 55–70. http://dx.doi.org/10.54028/nj2019175570.

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This paper analyses the design process that addresses the ecological consideration and architectural factors with local indigenous materials so that nature-based tourism can be more encouraged and feasible towards sustainable development. The case study is the Sundarbans, which is a mangrove forest and coastal wetland with a complex ecosystem formed by a variety of plants and animals. Due to its diversity, ecosystem richness and uniqueness, this contiguous block has a huge impact on both local and global environment and is significant among researchers, conservationists and nature lovers. Karamjal, Bangladesh, one of the main entry points of Sundarban Reserve Forest is enriched with a diversified ecosystem. But now this site is deteriorating day by day with increasing unplanned build forms and visitors. For betterment of ecological setting and tourism facilities for global attention, Karamjal is indicative of better consideration both ecologically and architecturally. After analysis, a case study of site-specific design is proposed for improvement of this site.

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Hossain, Gazi Mosharof, Saleh Ahammad Khan, Mohammad Sayedur Rahman, and Md Abdur Rahim. "New records of three species and a variety of Angiosperms for Bangladesh." Bangladesh Journal of Plant Taxonomy 27, no. 2 (December 11, 2020): 251–60. http://dx.doi.org/10.3329/bjpt.v27i2.50665.

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During the floristic explorations in Sundarbans mangrove forest of Bangladesh, conducted in 2016-2019, the authors collect some specimens of Angiosperms that are finally identified as Cleisostoma simondii (Gagnep.) Seidenf. of Orchidaceae and Volkameria heterophylla Vent. of Lamiaceae. Specimens of C. simondii are further identified as C. simondii var. guandongense Z.H. Tsi. The authors collect some specimens of another angiospermic plant in 2019 from Gazipur district of Bangladesh and confirm their identification as Leucas martinicensis (Jacq.) R. Br. of family Lamiaceae. All of these taxa are recorded here for the first time from Bangladesh. Detailed taxonomic description with notes on ecology, uses, distribution and distinctness from morphologically similar taxa, photographs and illustration are provided. Bangladesh J. Plant Taxon. 27(2): 251-260, 2020 (December)

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Tanveer, Nelofar, and Meena. "Impact of changing environmental scenario on biodiversity of mangrove forest of Sundarbans Delta Region, India." Archives of Agriculture and Environmental Science 7, no. 4 (December 25, 2022): 559–63. http://dx.doi.org/10.26832/24566632.2022.0704012.

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Sundarbans is the world’s largest contiguous mangrove forest and is a designated world heritage site, shared by India and Bangladesh, it is home to several species including tigers. The habitat supports approximately 4.37 million people. Mangrove ecosystem is a unique, fragile, highly productive ecosystem in the sea-land interphase, is the conglomerations of plants, animals and microorganisms acclimatized in the fluctuating environment of tropical intertidal zone. This ecosystem is a highly valued ecosystem in terms of economy, environment and ecology. This mangrove ecosystem of Indian subcontinent is well known not only for the aerial extent, but also for the species diversity. The biodiversity of Sundarbans includes numerous species of phytoplankton, zooplankton, microorganisms, benthic invertebrates, molluscs, amphibians and mammals. As per the research conducted it is believed that the Sundarbans have soaked in 4.15 crore tonnes of carbon dioxide. But the scenario has been changed during past few decades. Due to climate change the Sundarbans faces several challenges. Recorded data shows that a huge number of flora and fauna were compelled to be eliminated due to the consequences of climate change during the last century. Climate change components that affect mangroves and its inhabitants include changes in sea-level, high-water events, storminess, precipitation, temperature, atmospheric CO2 concentration and ocean circulation patterns. The study was conducted to identify the threats on the diversity and its effect on the socio-economic condition of the local community. With risk of the Sundarbans submerging, there is an urgent need for global reduction of emissions and replacement of fossil fuels with renewable energy.

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Habib, Kazi Ahsan, Md Jayedul Islam, Najmun Nahar, Mohammad Rashed, Amit Kumer Neogi, and Barry Russell. "Grunts (Actinopterygii: Perciformes: Haemulidae) of Bangladesh with two new distributional records from the northern Bay of Bengal assessed by morphometric characters and DNA barcoding." Acta Ichthyologica et Piscatoria 51, no. 3 (September 13, 2021): 299–309. http://dx.doi.org/10.3897/aiep.51.67043.

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Grunts (family Haemulidae) are among the most commercially important fish in Bangladesh. This paper provides brief diagnostic characters of five previously reported grunt species: Plectorhinchus pictus (Thunberg, 1792); Pomadasys andamanensis McKay et Satapoomin, 1994; Pomadasys argenteus (Forsskål, 1775); Pomadasys argyreus (Valenciennes, 1833); Pomadasys maculatus (Bloch, 1793) and two new distributional records: Pomadasys guoraca (Cuvier, 1829) and Plectorhinchus macrospilus Satapoomin et Randall, 2000. The fishes were collected from the Saint Martin’s Island coral reef-like ecosystem and the adjacent sea of the Sundarbans mangrove forest of Bangladesh. The examined specimens were identified and diagnosed based on their morphometric characters and DNA barcoding COI gene. The new records of Pomadasys guoraca and Plectorhinchus macrospilus from Bangladesh greatly extend their distributional range in the Bay of Bengal. An updated checklist of grunts of Bangladesh is provided.

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Islam, Mohammad Mahmudul, Atiqur Rahman Sunny, Mohammad Mosarof Hossain, and Daniel A. Friess. "Drivers of mangrove ecosystem service change in the Sundarbans of Bangladesh." Singapore Journal of Tropical Geography 39, no. 2 (February 28, 2018): 244–65. http://dx.doi.org/10.1111/sjtg.12241.

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Kamruzzaman, Md, Kalayan Basak, Sumonta K. Paul, Shamim Ahmed, and Akira Osawa. "Litterfall production, decomposition and nutrient accumulation in Sundarbans mangrove forests, Bangladesh." Forest Science and Technology 15, no. 1 (January 2, 2019): 24–32. http://dx.doi.org/10.1080/21580103.2018.1557566.

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Islam, Md Ariful, Md Rashedul Islam, Abdul Aziz, and Lawrence M. Liao. "Dictyota adnata Zanardini (Phaeophyceae) - A new record from the Sundarbans mangrove forests, Bangladesh." Bangladesh Journal of Botany 49, no. 2 (September 20, 2020): 407–12. http://dx.doi.org/10.3329/bjb.v49i2.49323.

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Samples were collected from Arpangasia and Kholpetua rivers within the Sundarbans in Bangladesh during February to March and December 2018. Among several forms was found a tightly prostrate brown alga occurring on moist parts of mangrove plants and clayey soil. Flattened brownish thalli tightly attached to pneumatophores and lower parts of mangrove trunks, spreading and branching dichotomously, sometimes overlapping and attached by means of unbranched marginal and sub-marginal rhizoids were collected. Distinct marginal sori are well developed in fertile specimens. On the basis of these characters, the sample has been identified as Dictyota adnata Zanardini which is herein reported as a new record for Bangladesh.

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Haque, Md Anwarul, Ashish Kumar Sarker, Mohammad Sayful Islam, Md Ajijur Rahman, Md Akter Uzzaman Chouduri, and Md Anwar Ul Islam. "In vitro Insecticidal and Time-Kill Profile of Ethyl Acetate Extract of Marine Streptomyces sp. Isolated from Sundarbans, Bangladesh." Bangladesh Pharmaceutical Journal 17, no. 2 (February 21, 2015): 151–56. http://dx.doi.org/10.3329/bpj.v17i2.22332.

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The marine soil and sediment samples were collected from different locations of mangrove forest Sundarbans, Bangladesh the largest tidal halophytic mangrove forest in the world. A total of twenty nine Actinomycete strains (AIAH-1 to AIAH-29) were isolated by serial dilution method using isolation media. Among twenty nine strains, AIAH-10 was selected for further study due to its potent antibacterial activity against a wide range of pathogenic bacterial strains. On the basis of morphological, cultural and biochemical studies, the strain AIAH-10 was assigned to Streptomyces sp. The present study was designed to investigate the in vitro insecticidal and time-kill profile of ethyl acetate extracts of marine Streptomyces sp. A dose dependent mortality was observed against the larvae of Sitophilus oryzae. The larval mortality was recorded as 100% in the concentration of 80 mg/ml and higher concentrations, LC50 was found as 11.48 mg/ml. The minimum inhibitory concentration was recorded as 8 to 32 mg/ml against six different pathogenic bacterial strains. Average Log10 reductions in viable cell counts for the extracts ranged from 1.91 Log10 and 2.86 Log10 cfu/mL after 3 h interaction and 2.10 Log10 and 2.93 Log10 after 6 h interaction at MIC, 2 × MIC, 3 × MIC and 4 × MIC concentrations. This investigation reveals that the Streptomyces species isolated from Sundarbans, Bangladesh may be interesting source for the isolation of potent bioactive compounds. DOI: http://dx.doi.org/10.3329/bpj.v17i2.22332 Bangladesh Pharmaceutical Journal 17(2): 151-156, 2014

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Journal articles on the topic 'Sundarbans of Bangladesh'

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