M Shahanul Islam

• Master of Science
• University of Dhaka

Sustainability in aquaculture or agriculture production is depended on its successive use of natural resources that can ensure economic increment and sustainability of the livelihood of people. The objective of the study was to find out suitable combination of rice-fish-vegetable to be cultured in rainfed rice field. Two experiments were conducted...

Summer ponds in north-west Bangladesh are suffering from sandy soil and drought. From January to December 2017, the University of Rajshahi, Bangladesh, conducted an experiment to improve seasonal ponds' water retention capacity and productivity. In nine seasonal ponds, polythene and clay were used on the bottom of three treatments (T1, T2, and T3)....

An estuary represents a transition point between freshwater and saltwater and has a complex but productive environment due to a strong interplay between geological, physical, chemical, and biological processes. In Bangladesh, the ecological factors and biodiversity of different estuaries have been investigated for the last 35 years. However, the da...

The present study was designed to determine the microbial load of Shellfish (shrimp and crab) and Coastal water. The study was carried out from May 2021 to December 2021 in the quality control laboratory of FIQC (Fisheries Inspection quality Control) at Department of Fisheries (DoF) in Chattogram, Bangladesh. The fresh shellfish samples were collec...

post-monsoon at four sampling stations in Karatoya River, Bangladesh. A total of 54 phytoplankton species were recorded under four classes, viz. Chlorophyceae (21 species) Cyanophyceae (16 species), Bacillario-phyceae (15 species), and Euglenophyceae (2 species). A significantly higher total cell density of phyto-plankton was detected during the pr...

As a multinational river, the Naf River flows into the Bay of Bengal in the Indian Ocean, between the Cox's Bazar district of Bangladesh and the Rakhine state of Burma. In a multidisciplinary approach, several experiments were carried out to understand the seasonal diversity of the phytoplankton community structure. A total of four layers of water...

The economic expansion of estuarine mud crab Scylla olivacea necessitated for the inclusive research on its biological characteristics, especially morphological features. This study explored the gender- specific growth pattern and condition factors of S. olivacea from the coastal waters of Sundarbans, Bangladesh. A total of 360 S. olivacea were col...

The striped dwarf catfish Mystus cavasius being a least concern small indigenous fish it is necessary to protect the species from extinction in the near future. An experiment on production and economic feasibility of Mystus cavasius in cage was conducted for a period of six months from March to August 2020 in beel hilla at Naogaon district of Bangl...

Microgels are plankton-derived transparent exopolymer particles (TEP) and have a significant impact on global marine carbon cycle. We investigated the influence of biogeochemical variables on the pattern of TEP abundance and its associated carbon (TEP C ) distribution through a vertical transect of the northern South China Sea (nSCS) during summer,...

This investigation provides details on the production and culture economics of cuchia (Monopterus cuchia) in semi-intensive aquaculture ponds. The cuchia eel was reared in rainfed earthen fishponds and supplemented with poultry viscera in three different stocking densities of T1 (9880 cuchia/ha), T2 (14820 cuchia/ha) and T3 (19760 cuchia/ha). The r...

A multidisciplinary approach was used to investigate the causes of the distributions and sinking rates of transparent exopolymer particles (TEPs) during the period of September–October (2017) in the Western Pacific Ocean (WPO); the study period was closely dated to a northwest typhoon surge. The present study discussed the impact of biogeophysical...

Shrimp culture economics has a significant influence on the socioeconomic status of coastal communities in Bangladesh. Here, we investigated the shrimp farmers' financial and perceptual reactions to analyze shrimp farming's direct impact on their socioeconomic status, sustainability, resilience, and the cultural environment. Our outcomes alluded th...

River fisheries are critical to ensure the sustainable provision of quality food and nutrition as well as economic stability of the millions of local populations in developing nations. The Fakirni River is home to a diversity of fish species. Here, we present the status and seasonal abundance of fish species in the Fakirni River and their impact on...

Marine carbon pool is dominated by vigorous particles and organism. Difference in phytoplankton community structures with its sinking rates are notable. It secretes transparent exopolymer particles (TEP) which may contribute in marine carbon cycle with certain percentages. Carbon estimations from Phytoplankton derived transparent exopolymer particl...

Aim: The effect of the current COVID-19 pandemic on the education system of Bangladesh and its possible solution is the focus of the present study. Design: The study employed a descriptive survey research design. Place and Duration of Study: The study was conducted through all the districts of Bangladesh from 8 March (2020) to 30 July (2020) accord...

Approximately 450–550 critically endangered soft-shell turtles locally known as Bostami turtle (Nilssonia nigricans) are confined in a freshwater reservoir (earthen pond) of 5663.24 m2 (84.4 m × 67.1 m) at a shrine in Chattogram, Bangladesh. The shrine is visited by many people and feed these turtles for religious purposes. These turtles are remain...

Karatoya River is an important freshwater system that is home to different types of fish species. In the present study, the seasonal abundance and diversity indices of fish assemblage and their relationship with physicochemical parameters were studied. Fifty-four fish species were recorded from four stations for 12 months. The highest number of fis...

The freshwater mud eel culture is a low-cost system compared to other small-scale fish culture projects and it is presumed a low-cost enterprise to the farmers. This fish culture does not necessarily require large bodies of water and specific expensive formulated feed.

The condition factor (K) of a fish reflects physical and biological circumstances and fluctuations by interaction among feeding conditions, parasitic infections and physiological factors. A study was conduct on fry, fingerlings and juvenile of 20 different commercially culturable fish species (Carps, catfish and others) to investigate the health co...

Seasonal data has been collected on fish seed (fry and fingerlings) availability and their distributions along south-western Bangladesh. One of the largest fish seed market was situated in Jessore (Chasra) which is decorated with fries and fingerlings of 40 different fish species. The fish seeds in chasra were exotic Carps like Aristichthys nobilis...

Aquaculture, also known as aqua farming, is the farming of aquatic organisms such as fish, crustaceans, mollusks and aquatic plants. It has two types, freshwater aquaculture and salt-water aquaculture. Climate change is now widely recognized as the major environmental problem facing the globe. It is a significant and lasting change in the statistic...

The present study was conducted in the Nakkata Beel in Bagmara Upazila of Rajshahi District for a period of ten month from July, 2016 to April, 2017 with a view to understanding the status of community-based fisheries management practice and livelihood of the stakeholder in the river. A total of 50 fish species recorded in the beel of which 10 spec...

Studies were conducted on the types and characteristics of fishing gears, crafts and socio-economic conditions of hilsa (Tenualosa ilisha, Hamilton, 1822) fishing communities of the Padma river region in Charghat and Bhaga upazilla under the district of Rajshahi for a period six month starting from July 2014 to January 2015. A total of 186 fisherme...

Seasonal sampling was done through each month of 2014 on fish variations and their impacts on local livelihood accordingly. It was shown that fish biodiversity controls the life style and occupation orientations of adjacent fishermen greatly. A total of 26 fish species belonging to 18 genera, 10 families and 6 orders were recorded from river. Globa...

Generally, 2500 ml water is enough in average for ablution before praying at Mosque. Continuous flow of water from tap in Mosque usually waste more water in rush hour (7000-8000 ml). Those water are not critically polluted. A small amount of sand, clay or human spit are found as pollutants in it. A simple gravel-filter setup can easily purify these...

A study was conducted to know about growth performance of prawn (Macrobrachium rosenbergii) and tilapia (Oreochromis niloticus) in ponds for a period of 4 months (August, 2016 to November, 2016) under three treatments with three different stocking density with supplementary feed contained 30% dietary protein. The mean initial stocking weight of pra...

Influences of dissolved phosphates were investigates through intensive approaches on Monosex tilapia (Oreochromis niloticus) under controlled culture. Culture Cubes were introduced under different treatments (T1, T2, T3 & T4) with PO4 variations in water and measured there influences through different analysis. Measurements showed significant influ...

Nutritional influences, especially carbohydrates on different growth and production parameters of Catla (Catla catla), Rui (Labeo rohita) and Mrigel (Cirrhinus cirrhosus) were investigate in this study through extensive culture methods. Four cultural treatments with a number of replications were conducted with close monitoring and relevant environm...

Water and sediment of Ganges Strems (Baronai river) is under influences of a number of pollutants and hazards heavy metals; sourcing from different potential recourses i.e. domestic wastes, factories dumping, aerosol dusts etc. Samples were measured with Spectrometer (Shimadzu, A-6800). Mn concentration is higher in sediment than river water. On th...

Padma River, located on the bank of Rajshahi city converted into a dump of waste of more than 7 lakhs of its inhabitants. Drainage water of the Rajshahi metropolis is continuously polluting waters in the Padma River posing a serious threat to its ecosystem and biodiversity. (GoB, 1997). Present work will focus on the environmental problem at Padma...

Half yearly observations were done to determine the seasonal effects of NH3 on growth performances of mud eel (Monopterus cuchia) in soil bedded earthen culture ponds. Seasonal monitoring of NH3 on various growth parameters of mud eel were conducted in different treatments (T1, T2 & T3) with replication (Fig. 1) for further analysis. NH 3 influence...

In the present experiment, the viability of formulated feed with locally available feed ingredients was evaluated over traditionally prepared hand-made feed and commercial pellet feed for pond culture of carp species. Three commonly cultured carp species namely Catla catla, Labeo rohita and Cirrhinus cirrhosus with the average initial weight of 25....

Diversity of Radiolaria

The transparent exopolymer particles (TEP) are gelatinous, organism derived substance which have a significant impact on global marine element cycle. In this study, the abundance and pattern of TEP and its relevant biogeochemical variables were investigated at marine euphotic water along a transection in the northern South China Sea (SCS) during su...

Backgrounds and objectives: Commercially, stocking density can make a significant difference in fish Farming. Based on local environmental factors and management systems, monosex tilapia responses widely to various population density. For maximum production, determining optimum high density of Oreochromis niloticus was the soul target of present ex...

To investigate the effect of bottom-up factors (resource, hydrography, and environmental factors) on the phytoplankton and tintinnid microzooplankton communities, the research voyage was conducted in September 2017 at the East China Sea. An aggregate of 273 taxa of phytoplankton and 65 taxa of tintinnid were identified. Diatoms and dinoflagellates...

Shrimp culture plays an important role in the southern belt of Bangladesh. Local shrimp farming community express their satisfaction and consciousness about shrimp farming according to their present income after having a comparison with previous economic status. A thorough investigation of their wealth and mind responses were gathered to analysis t...

To study the seasonal transparent exopolymer particles (TEP) distributions, sedimentation and its impacts on carbon cycle in north Chinese seas, a total of total 56 stations TEP samples and its sinking rate measurements by SETCOL method via water sampling cruise during autumn (2014), summer (2015) and winter (2015) in the Bohai Sea (BS), North Yell...

A survey was conducted on the different type and size of fishing gears and crafts that were used in Tulsiganga river, Bangladesh. The survey was based on interviews with the local fishermen and secondary data collected from the local fisheries offices. The collected data reported a total of six distinguishing fishing nets with moderate mesh sizes,...

Stocking variation experiments on survival, production and growth performances of Thai climbing perch (Anabas testudineus) was carried out in 8 earthen ponds under semi-intensive culture system to determine the effects and their relationships. 8 replicates were designed with 3 treatments after assigned with fixed stocking density for each treatment...

The study was conducted to pursue the role of Information and Communication Technologies (ICTs) in agricultural development in Bangladesh. The data were collected from 50 randomly selected farmers from four unions of Noakhali at southern Bangladesh. A mixed method research design was used to determine the role of ICTs. The findings of the study rev...

Fishermen around little Jamuna [River] were interviewed and categorized under different socioeconomic challenges. Ratios of human capitals indicate that professional fisherman is looking for alternative occupations due to their inadequate education with larger family size. It was found that their income margins are low but loan borrowing frequency...

West Pacific Ocean became typhoon affected area during September-October, 2018. Sampling was done after typhoon effect on Mindanao current. It was found that concentration of TEP was averagely higher in 150m depths, especially in Mindanao cold eddy. Average TEP concentration was 6.58 μ gXeq . L-1. Distribution of carbon associated with TEP (TEP-C)...

Phytoplankton sinking rate sampling were done during Pacific Typhoon Season at western pacific transection near Philippine currents. SETCOL methods were used on board to distinguish settling sample for further analysis with necessary Chlorophyll-a and dissolved nutrients samples. Concentration of diatom were higher than dinoflagellates and cyanobac...

Abstract: Background and Objectives: Tulshiganga river is rich in aquatic biodiversity in Joypurhat, Bangladesh. Present survey narrated the venerability and diversity indexes of ichthyofaunal distribution here. Materials and Methods: On-pot data collection and questioner survey was conducted thoroughly among fishermen and tabulated data were analy...

Phytoplankton sample was taken from western Pacific region after Northwest pacific typhoon activity along Philippine coast in September-October 2017. Among 393 phytoplankton species, 255 were diatom and 138 were dinoflagellates. Bacteriastrum hyalinum, Skeletonema sp., Rhizosolenia alata, Nitzschia seriata, Chaetoceros rostratus were the dominant d...

Identification of phytoplankton in a particular sample has a number of steps to proceed. Experts using their experiences with microscopic view of phytoplankton. Books with pictures of phytoplankton was a years old but effective way of primary plankton identification. But going through pages after pages of books with a large number of phytoplankton...

Background and Objectives: Better livelihood of fisherman bring economic advancement in Fisheries. So, the present research surveyed the socio-economic condition of the fisherman around Tulsiganga river. Methods: Data were collected by Questioner review and focus group discussion among 50 fishermen and tabulated for percentage calculation with a co...

The Naf River estuary is one of the most productive ecological ecosystems in Bangladesh providing an important feeding area for fishes and other aquatic animals. However, detailed information on macrobenthic communities is rarely available in this area. Our study focused on the seasonal and spatial variability of macrobenthic community structure wi...

A total of 330 pieces of mud crab (Scylla serrata) were sampled from North of Sundarban, Bangladesh for one whole year from February 2014 until January 2015. The average diet item observed in the stomach consisted of bivalves (21%), detritus (12%) and gastropods (5%) with a higher amount of crustaceans (38%). It was also observed that the higher ac...

Background and Objective: Many commercial foods are introduced for monosex tilapia culture. The present study want to know their efficiency in composition and on the growth of tilapia. Materials and Methods: This study was continued on total 300 monosex tilapia, (Oreochromis niloticus L.) through 16 weeks under four treatments (T) with triplication...

BD Fishpedia: I am Glad to introduce the mobile application “BD Fishpedia” as a pioneer and info-full monster about more the 560 fish species of peoples’ republic Bangladesh. With their scientific description in short and easy physiological point out, make this app literally a knowledge bomb. This app holds the scientific information about Fishes...

The present study was conducted to know the fish seed marketing channels with their condition factors in Chasra, Jessore which is the biggest fish seed trading market place in Bangladesh. Three types of horizontally and vertically interlinked marketing channels were found here. 90% of fish seeds are produced in hatcheries and rest brought from rive...

The study was conducted to know the growth and survival of mono-sex tilapia produced through hormone treatment and genetic manipulation. Fertilized eggs of both types were collected from the mouth of female directly from breeding hapas placed in pond and were kept in jar incubation system in hatchery. Fry were obtained after an incubation period of...

The present study was conducted to know activities and causes of illegal Jatka fishing of Meghna River in Bangladesh. The aim was to assess catch per unit effort (CPUE) and abundance of Jatka in three spots of Meghna River and the livelihood of fishermen in the study areas. Data were collected randomly interviewing, arranging focus group discussion...