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Featured researches published by M. Shahadat Hossain.


Archive | 2016

Heavy Metals Accumulation in Coastal Sediments

S.M. Sharifuzzaman; Hafizur Rahman; S.M. Ashekuzzaman; Mohammad Mahmudul Islam; Sayedur Rahman Chowdhury; M. Shahadat Hossain

Heavy metals, such as arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), mercury (Hg) and zinc (Zn), are major environmental problem due to their toxic nature, nonbiodegradability and accumulative behaviors. Once in the estuarine/coastal and marine environments, sources predominantly form industrial, agricultural and hydrocarbon-related activities, scrap metal recycling, commercial ports and sewage, these contaminants accumulate in sediments and soils. Thus, heavy metals concentrations in coastal areas around shipyards, ports and industrial sites with refineries, smelters and milling facilities are often far exceed their background values or standard limits that can be toxic. The toxicity of heavy metals may negatively affects marine biodiversity as higher concentration is detected in fish and other organisms. Due to their persistence, through bioaccumulation and biomagnification along the aquatic food chain, heavy metals contamination ultimately affects human health. Here, the sources and impacts of heavy metals pollution in living systems are discussed.


Journal of Coastal Conservation | 2018

Elements of fishing community resilience to climate change in the coastal zone of Bangladesh

S. M. Sharifuzzaman; M. Shahadat Hossain; Sayedur Rahman Chowdhury; Subrata Sarker; M. Shah Nawaz Chowdhury; M. Zahedur Rahman Chowdhury

Resilience has been conceptualized in various ways by anthropologists, ecologists, systems scientists and engineers; the boundaries of resilience are subjective and context dependent. Consequently, choosing the standards and metrics for assessing resilience remains key challenges for policy makers. In this study, using multicriteria evaluation of 40 basic criteria of human, physical, financial, natural and social assets, we have identified several elements, such as experienced fishermen, natural abundance of hilsa (Tenualosa ilisha), ability to assert decision on fish selling, nets and boats ownership, social harmony and capacity of buying food as essential livelihood assets for the fishermen at Hatiya Island, Bangladesh. These assets may enhance the relative resilience of the fishing community of the island to climate change by as much as 20–40%. The results of this study will improve our understanding of the elements that lead to resilience at the community level.


Chiang Mai University journal of natural sciences | 2014

Freshwater Fish Diversity at Greater Noakhali, Bangladesh

M. Shahadat Hossain; Subrata Sarker; M. Ziaur Rahaman; Munsur Rahman

ABStRAct This study assessed the spatial-temporal diversity of fish at greater Noakhali, an aquatic ecosystem that supports the most diverse fish communities in Bangladesh. Fish samples were collected from eight locations from July 2010 to June 2011 and diversity analyzed using PAST software. Findings showed that greater Noakhali is the habitat for 128 fish species. For the whole sampling area, the Shannon diversity index, evenness, Margalef richness and dominance index values were 4.501, 0.889, 15.763 and 0.012, respectively. Oreochromis mossambicus, Mastacembelus armatus and Tenualosa toli were the major contributory species in temporal terms and Tenualosa ilisha, Somileptes gongota and Mystus vittatus in spatial terms.


Zoology and ecology | 2013

New species of leaf fish Nandus meni (Perciformes: Nandidae) from Noakhali, Bangladesh

M. Shahadat Hossain; Subrata Sarker

Nandus meni sp. nov. is described from the Meghna deltaic region in Noakhali, Bangladesh, after a detailed morphological examination and careful comparisons with other geographically proximate congeners. N. meni can be readily diagnosed by having the following combination of characters: total length 114.1–142.4 mm, standard length (SL) 94.1–117.3 mm, body depth at anus 29.0–32.9% of SL, head length (HL) 39.6–42.2% of SL, a dark spot on the caudal peduncle, a concave ventral portion of the body, gill arch V-shape, greenish body colour, 9–11 pectoral fin rays, snout length 24.5–33.1% of HL and eyes diameter 18.1–20.4% of HL. The new species N. meni differs from other congeners in having greenish body colour, smaller eyes, a concave ventral body, a V-shaped gill arch and a dark spot on the caudal peduncle.


Ocean Science Journal | 2016

First Record of Porpita porpita (Cnidaria: Hydrozoa) from the coral reef ecosystem, Bangladesh

M. Shah Nawaz Chowdhury; S. M. Sharifuzzaman; Sayedur Rahman Chowdhury; Md. Rashed-Un-Nabi; M. Shahadat Hossain

The occurrence of Porpita porpita is reported, for the first time, in the coral island of St. Martin’s located in the southeastern coastal region of Bangladesh. P. porpita was found to occur in the lower littoral zone and beach rock pools, together with molluscan species, and collected during the pre-monsoon season when both water temperature (> 30°C) and salinity (> 30‰) tend to reach a maximum. This study recounts some details on the discovery and description of the species, and thus extends the global distribution and range limits of the genus Porpita.


Chinese Journal of Oceanology and Limnology | 2014

A simple and inexpensive method for muddy shore profiling

Sayedur Rahman Chowdhury; M. Shahadat Hossain; S. M. Sharifuzzaman

There are several well-established methods for obtaining beach profiles, and more accurate and precise high-tech methods are emerging. Traditional low-cost methods requiring minimal user skill or training are still popular among professionals, scientists, and coastal zone management practitioners. Simple methods are being developed with a primary focus on sand and gravel beaches. This paper describes a simple, low-cost, manual field method for measuring profiles of beaches, which is particularly suitable for muddy shores. The equipment is a type of flexible U-tube manometer that uses liquid columns in vertical tubes to measure differences in elevation; the supporting frame is constructed from wooden poles with base disks, which hold measuring scales and a PVC tube. The structure was trialed on a mudflat characterized by a 20–40-cm-thick surface layer of silt and clay, located at the Kutubdia Island, Bangladesh. The study results are discussed with notes on the method’s applicability, advantages and limitations, and several optional modifications for different scenarios for routine profiling of muddy shores. The equipment can be used by one person or two people, and the accuracy of the method is comparable to those in other methods. The equipment can also be used on sandy or gravel beaches.


Landscape and Urban Planning | 2009

Integration of GIS and multicriteria decision analysis for urban aquaculture development in Bangladesh

M. Shahadat Hossain; Sayedur Rahman Chowdhury; Nani Gopal Das; S.M. Sharifuzzaman; Abida Sultana


Computers and Electronics in Agriculture | 2010

GIS-based multi-criteria evaluation to land suitability modelling for giant prawn (Macrobrachium rosenbergii) farming in Companigonj Upazila of Noakhali, Bangladesh

M. Shahadat Hossain; Nani Gopal Das


Aquaculture International | 2007

Multi-criteria evaluation approach to GIS-based land-suitability classification for tilapia farming in Bangladesh

M. Shahadat Hossain; Sayedur Rahman Chowdhury; Nani Gopal Das; M. Moshiur Rahaman


The Egyptian Journal of Aquatic Research | 2012

Fish diversity and habitat relationship with environmental variables at Meghna river estuary, Bangladesh

M. Shahadat Hossain; Nani Gopal Das; Subrata Sarker; M. Ziaur Rahaman

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Subrata Sarker

University of Chittagong

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Nani Gopal Das

University of Chittagong

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Abida Sultana

University of Chittagong

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