Papers by Md. Solaiman Hossain
Trace element bioaccumulation in edible red seaweeds (Rhodophyta): A risk assessment for consumers
Environmental Pollution
The study was conducted to know the growth and survival of mono-sex tilapia produced through horm... more 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 90-96 hours. Larvae after absorption of egg yolk sac were fed with hormone (17 alpha-methyl testosterone hormone) mixed commercial larval feed for 21 days in controlled conditions to convert bisexual babies to all males (mono-sex). The XY males were produced through cross breeding of imported super males (YY males) and BFRI XX females. The XY males were also reared for 21 days under controlled conditions fed with same commercial diet without hormone. The rearing of young mono-sex tilapia of both types continued for 70 days. Each type had two treatments, one reared based on natural productivity and the other supplemented with a commercial ...
Fish growth and feed utilization experiment of the juvenile Shoal fish have been carried out whil... more Fish growth and feed utilization experiment of the juvenile Shoal fish have been carried out while rearing the fish in three glass aquaria in lab condition for a period of 35 days. Locally available raw materials have been used as feeding material. Known amount of fish feed was supplied in the aquaria according to the feeding interest and existing appetite of the experimental fish. A biometric measurements have been taken and analysis for proximate composition of the fish feed and the experimental fish has been carried out. Nutrient values of the fish have been found to increase from its initial values of protein 16.05%, fat 0.33%, ash content 1.18% to protein 20.39%, fat 0.62%, ash content 6.25% for feed A; to protein 18.2%, fat 0.4%, ash content 1.2% for feed B; to protein 23.34%, fat 1.3%, ash content 9.48% for feed C at the end of the study period. Mixed feed diets have been found to contain 29.93% protein, 3.96% fat and 5.01% ash with 59.97% moisture content. Results of the growth and feed utilization experiment of the juvenile shoal fish revealed that the fish is a good source of protein and feed utilization rate is satisfactory. The growth rate measuring parameters such as condition factor, ADG, SGR, muscle ratio, the survival rate and the feed utilization parameters such as FCR, PER, feed efficiency have been found to be the most efficient in case of feed C i.e. mixed fish diet. Length-Weight relationship of the experimental fish has been calculated and regression lines of weight on length of each aquarium has been drawn individually and linear relationship has been obtained for each case. The correlation coefficient (r) values between length and weight have been found to be 0.985, 0.977 & 0.971 at 0.01 confidence level in case of aquaria 1, 2 and 3 respectively.
Department of Coastal and Marine Fisheries, Sylhet Agricultural University, Sylhet, Bangladesh EC... more Department of Coastal and Marine Fisheries, Sylhet Agricultural University, Sylhet, Bangladesh ECOFISH project, WorldFish Bangladesh and South Asia Department of Natural Resource Management, Pathfinder Agro and Fisheries Consultation Center Department of Biology, Notre Dame College, Dhaka, Bangladesh Department of Fisheries Technology and Quality Control, Sylhet Agricultural University, Sylhet, Bangladesh Institute of Marine Sciences and Fisheries, University of Chittagong, Chittagong, Bangladesh. Department of Oceanography, Shahjalal University of Science and Technology, Sylhet, Bangladesh.
Environments, 2021
This study has evaluated the potential ecological risk and human health risk for the contaminatio... more This study has evaluated the potential ecological risk and human health risk for the contamination of nine elements (Cu, Cr, Mn, Zn, As, Pb, Co, Fe, and Sr) in water and sediment samples in two seasons, i.e., before and after rainy season, by calculating several pollution indices such as pollution load index (PLI), potential ecological risk (PER), and target hazard quotient (THQ). Samples were analyzed for elemental concentration using energy dispersive X-ray fluorescence (EDXRF) spectrometry. This study found that waters in the Kutubdia channel are safe and standard for aquatic organisms. In addition, the study area’s elemental concentration in water and sediments is still safe but moderately enriched with Zn and Cu. The elemental concentration in water was observed to be high in the pre-monsoon season and vice versa in the sediment study. The result also reveals no potential ecological risk (PER < 4) in the study site. However, the health risk index showed a noncarcinogenic ris...
Ecotoxicology and Environmental Safety, 2020
We aimed to determine the temporal variation of trace metals concentrations in surface water and ... more We aimed to determine the temporal variation of trace metals concentrations in surface water and surface sediment samples at Kutubdia Channel, Bangladesh. Trace metals of samples were detected using energy dispersive X-ray fluorescence (Energy-dispersive X-ray spectroscopy) method. The lowest concentration of metals was found in water samples during post-monsoon season and the highest during pre-monsoon season (Cu:
Ocean & Coastal Management, 2018
Proper utilization of marine resources towards achieving sustainable economic development has got... more Proper utilization of marine resources towards achieving sustainable economic development has got worldwide attention in recent years. Likewise, the Bangladesh government has also emphasized Blue Growth after settling the permanent maritime boundary with neighboring countries. This study aims to identify the Blue Economy potentials of Bangladesh, evaluate the economic values of these potentials, identify challenges for Blue Growth and finally develop a management framework. To collect data, consultations with different stakeholders related to Blue Growth in Bangladesh were conducted. Secondary data were collected from the review of policy documents, newspaper reports and scholarly articles. Coastal and marine resources i.e. living, non-living and renewable are identified as the main components of Blue Economy in Bangladesh. Moreover, trades and commerce related to the sea and coast, and protection from natural disasters also have economic returns having potential for enhancing Blue Growth. Conversely, sea level rise, climate-driven extreme events, pollution, human interferences and lack of law enforcement are identified as the major challenges for the further development of Blue Economy. To achieve sustainable Blue Growth in Bangladesh, a strategic planning is required which should focus on potential sectors related to Blue Economy, research and ocean governance. The study argues that enhancing Blue Growth and achieving Sustainable Development Goals (SDGs) must go together to ensure that balance does not swing too far towards Blue Growth at the expense of environmental sustainability. Finally, this study submits a management framework for enhancing Blue Growth in Bangladesh.
Heliyon, 2021
Assessment of elemental contamination is emerging research in the present world. Metals are hazar... more Assessment of elemental contamination is emerging research in the present world. Metals are hazardous to the environment and people's health when metals concentration might exceed the tolerable level. In this research, 12 elements (i.e., Mn, Ni, Cu, Zn, As, Se, Sr, Co, Pb, Fe, Rb, and Ti) were assessed using the energy dispersive X-ray fluorescence (EDXRF) method in water and sediment samples in four (4) different spawning grounds of Tenualosha ilisha at the confluence of the Meghna River in Bangladesh. A comparative analysis was performed for the first time among four sampling spots, i.e., Chandpur, Bhola, Sandwip, and Hatiya, assessed all possible risk indices-it is a unique thing. Several risk indices were solved to determine the degree of sediment pollution for all 12 elements, e.g., degree of contamination (C d):6.5-7.01, the modified degree of contamination (m C d): approximately 0.7, the pollution load index (PLI): 0.45-0.51, etc. where all the indices' results showed low or baseline levels of pollution. According to the enrichment factor (EF) computation, slight enrichment of examined metals except Pb and Zn was found. In addition to these, the ecological risk factor (E r) found in the following order (pollution level: low): Cu > Pb > Zn among the four stations. Moreover, a spatial incline of metal accumulation was observed among the four spots: Bhola < Sandwip < Hatiya < Chandpur based on the risk index (RI) set value. However, a strong positive correlation (p < 0.05) between Ca and Fe, Ti and Fe, Ti and Mn, Mn and Fe, Fe and Sr were observed while Ca, and Co were strongly negatively correlated (r ¼ minus (-)0.60, p < 0.05). The cluster analysis was performed and got an asymmetrical cluster among the sampling stations. This study recommends assessing the heavy metal concentration in biological samples, particularly in Hilsha fish.
Data set on trace metals in surface sediment and water from a sub-tropical estuarine system, Bay of Bengal, Bangladesh
Data in Brief
Comparative assessment of bioactive compounds, antioxidant capacity and nutritional quality of red seaweeds and water spinach
Regional Studies in Marine Science
Journal of Fisheries and Aquatic Science, 2016
NorthEastern region of Bangladesh is very promising for freshwater capture fisheries, nevertheles... more NorthEastern region of Bangladesh is very promising for freshwater capture fisheries, nevertheless, comprehensive assessment on faunal composition and diversity assemblages of natural wetlands are scant.This study identifies the occurrence, different biodiversity indices and composition of fish with various gear types by means of qualitative and quantitative approaches in Tanguarhaor and Dekarhaor. A total of 75 fish species were identified, of which 53 % were Cypriniformes, followed by Siluriformes (15 %), Perciformes (14 %), Channiformes (7 %) and Clupeiformes (4 %). Among the identified taxa 42 species were not threatened, 12 vulnerable, 11 endangered and 8 critically endangered. The values of diversity indices explicitly Shannon-Weiner (H'), Pielou evenness (J'), Margalef richness (d) and Simpson dominance (c) indices indicated that Tanguarhaorwasmore diversified and evenly distributed than Dekharhaor. For effective management of the haorscomprehensive stock assessment, establishment of fish sanctuaries, and combination of input and output control is suggested.
Assessment of heavy metals contamination in selected tropical marine fish species in Bangladesh and their impact on human health
Environmental Nanotechnology, Monitoring & Management, 2019
• Chemical pollution in marine ecosystems is leading towards an increase in the concentrations of... more • Chemical pollution in marine ecosystems is leading towards an increase in the concentrations of heavy metals in fish body, which might have a negative impact on human health through consumption of fish. Here, five commercially important marine fishes (i.e. Sillaginopsis panijus, Trichiurus lepturus, Harpadon nehereus, Rita rita and Coilia dussumieri) were collected from the Kutubdia Channel of the northern Bay of Bengal, Bangladesh. Samples were collected during pre-monsoon and post-monsoon for the year of 2016 to measure the heavy metal concentrations in edible part (flesh) of the fishes; and finally to assess the human health risk due to consumption of those fishes. Heavy metal concentrations (i.e. Cr, Cu, Pb, Mn, Sn and As) in the collected fish species were determined using energy dispersive X-ray fluorescence (EDXRF) method. Subsequently, for assessing the human health risk, the target hazard quotient (THQ) values were estimated. This study found that the heavy metal concentration for Cr, Cu, Pb, Mn, Sn and As in fish samples were 1.51 to 2.53, 2.14 to 5.08, 2.89 to 3.41, 14.54 to 18.45, 23.04 to 32.21 and < 0.41 mg/kg respectively as dry weight basis. This study also revealed that the THQ values for all studied metals in five species of fishes for both seasons were < 1, which indicating no cancer risk due to consumption of those fishes. On the other hand, the target cancer risk for Pb was found within an acceptable level (10 −4 to 10-6). Therefore, it has been suggested that the selected tropical marine fishes might be free from contamination and human might be in safe from any risk due to consumption of those fishes.
From science to action: Exploring the potentials of Blue Economy for enhancing economic sustainability in Bangladesh
Ocean and Coastal Management, 2018
Seasonal variations of trace metals from water and sediment samples in the northern Bay of Bengal
Ecotoxicology and Environmental Safety, 2020
We aimed to determine the temporal variation of trace metals concentrations in surface water and ... more We aimed to determine the temporal variation of trace metals concentrations in surface water and surface sediment samples at Kutubdia Channel, Bangladesh. Trace metals of samples were detected using energy dis-persive X-ray fluorescence (Energy-dispersive X-ray spectroscopy) method. The lowest concentration of metals was found in water samples during post-monsoon season and the highest during pre-monsoon season (Cu: 0.030 ± 0.001 μg/L in pre-monsoon and 0.026 ± 0.002 μg/L in post-monsoon, Zn: 0.087 ± 0.003 μg/L in pre-monsoon and 0.073 ± 0.002 μg/L in post-monsoon, Fe: 0.080 ± 0.001 μg/L in pre-monsoon and 0.055 ± 0.001 μg/L in post-monsoon). In contrast, metal concentration in surface sediment samples were higher in post-monsoon than in pre-monsoon season i.e. Cr 11 mg/kg in pre-monsoon and 12 mg/kg in post-monsoon, Mn 571 mg/kg in pre-monsoon and 606 mg/kg in post-monsoon, As (8 mg/kg in pre-monsoon and 10 mg/kg in post-monsoon, Pb (22 mg/kg in pre-monsoon and 24 mg/kg in post-monsoon, and Fe 2317 mg/kg in pre-monsoon and 2435 mg/kg in post-monsoon. We found a spatial gradient of high to medium to low in trace metal concentration from river to river mouth to offshore area. Considering the sources of metals, land erosion by waves and tidal action, an influx of water and sediment from the surrounding rivers, agricultural waste, industrial effluent and sewage are the most likely sources of metal pollution in the study area. We conclude that proper management strategies should be adopted to control the pollution and conserve the ecosystem health.
Fish growth and feed utilization experiment of the juvenile Shoal fish have been carried out whil... more Fish growth and feed utilization experiment of the juvenile Shoal fish have been carried out while rearing the fish in three glass aquaria in lab condition for a period of 35 days. Locally available raw materials have been used as feeding material. Known amount of fish feed was supplied in the aquaria according to the feeding interest and existing appetite of the experimental fish. A biometric measurements have been taken and analysis for proximate composition of the fish feed and the experimental fish has been carried out. Nutrient values of the fish have been found to increase from its initial values of protein 16.05%, fat 0.33%, ash content 1.18% to protein 20.39%, fat 0.62%, ash content 6.25% for feed A; to protein 18.2%, fat 0.4%, ash content 1.2% for feed B; to protein 23.34%, fat 1.3%, ash content 9.48% for feed C at the end of the study period. Mixed feed diets have been found to contain 29.93% protein, 3.96% fat and 5.01% ash with 59.97% moisture content. Results of the growth and feed utilization experiment of the juvenile shoal fish revealed that the fish is a good source of protein and feed utilization rate is satisfactory. The growth rate measuring parameters such as condition factor, ADG, SGR, muscle ratio, the survival rate and the feed utilization parameters such as FCR, PER, feed efficiency have been found to be the most efficient in case of feed C i.e. mixed fish diet. Length-Weight relationship of the experimental fish has been calculated and regression lines of weight on length of each aquarium has been drawn individually and linear relationship has been obtained for each case. The correlation coefficient (r) values between length and weight have been found to be 0.985, 0.977 & 0.971 at 0.01 confidence level in case of aquaria 1, 2 and 3 respectively.
NorthEastern region of Bangladesh is very promising for freshwater capture fisheries, nevertheles... more NorthEastern region of Bangladesh is very promising for freshwater capture fisheries, nevertheless, comprehensive assessment on faunal composition and diversity assemblages of natural wetlands are scant.This study identifies the occurrence, different biodiversity indices and composition of fish with various gear types by means of qualitative and quantitative approaches in Tanguarhaor and Dekarhaor. A total of 75 fish species were identified, of which 53 % were Cypriniformes, followed by Siluriformes (15 %), Perciformes (14 %), Channiformes (7 %) and Clupeiformes (4 %). Among the identified taxa 42 species were not threatened, 12 vulnerable, 11 endangered and 8 critically endangered. The values of diversity indices explicitly Shannon-Weiner (H'), Pielou evenness (J'), Margalef richness (d) and Simpson dominance (c) indices indicated that Tanguarhaorwasmore diversified and evenly distributed than Dekharhaor. For effective management of the haorscomprehensive stock assessment, establishment of fish sanctuaries, and combination of input and output control is suggested.
Aquaculture is immensely increasing in Bangladesh to meet the growing fish protein demand due to ... more Aquaculture is immensely increasing in Bangladesh to meet the growing fish protein demand due to availability of freshwater and marine ecosystems. This study was conducted to know the variation of physicochemical parameters of aquaculture farm with different pond age and depth. The culture ponds were divided into two distinct groups i.e. 1-5 years group pond and 6-10 years pond for analysis. The ponds were also divided based on depth (i.e. shallow pond (0.5-1 m) and deep pond (2-3.5m). The soil pH of different ponds was recorded and salinity sharply increased with pond's depth and age. Amount of organic matter and organic carbon also highly accumulated with the increasing of pond's age and depth. Sulfur and phosphorus decreases with pond's age and depth but nitrogen and potassium were found similar with age and depth of pond. The results will help us for our further understanding of the influence of pond processes on pond productivity.
The study was conducted to know the growth and survival of mono-sex tilapia produced through horm... more 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 90-96 hours. Larvae after absorption of egg yolk sac were fed with hormone (17 alpha-methyl testosterone hormone) mixed commercial larval feed for 21 days in controlled conditions to convert bisexual babies to all males (mono-sex). The XY males were produced through cross breeding of imported super males (YY males) and BFRI XX females. The XY males were also reared for 21 days under controlled conditions fed with same commercial diet without hormone. The rearing of young mono-sex tilapia of both types continued for 70 days. Each type had two treatments, one reared based on natural productivity and the other supplemented with a commercial diet. Among two types egg hatching rate was higher those of YY male (90±2%) origin compared to those of XY male (88±3%) of BFRI origin. The sex conversion rate to mono-sex after hormone treatment of larvae of BFRI origin was 97%. The final average body weight of hormone treated male fed on natural food was (12±1.1g) and XY male from YY super male was (15±1.3g). On the other hand, final weight of hormone treated male fed on natural foods and supplemental feed was (33±1.4 g) and those of XY male from YY super male was (42.53±1.7 g). In terms of gain in average body length, hormone treated male tilapia in the natural food using hapa was 9.5±0.20 cm compared to XY male of YY super male 8.7± 0.25 cm. The average length of hormone treated male tilapia supplemented with artificial feed in hapa was (11.8±0.62 cm) and XY male from YY super male (13±0.76cm). After 70 day rearing in hapa in culture pond, it was found that the survival rate of hormone treated male tilapia fed on natural foods was 87% and those of male tilapia fed on natural feed as well as supplemental feed showed survival rate of 76%. On the other hand, the survival rate of male XY from YY super male tilapia in the fed on natural food using was 72% and supplemental feed was 77%. In the study it was found that growth performances of XY males of YY super male origin was superior compared to conventional mono-sex tilapia.
Abstract: The present study was conducted to know activities and causes of illegal Jatka fishing ... more Abstract: 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 (FGD) and participatory rural appraisal (PRA) among fishermen and market
chain members. The CPUE of Jatka was 63-84kg/1000m during peak season (Nov-Jan) and 30-37kg/1000m
net/hour during lean season (Feb-Mar) respectively in three spots (Sadar of Noakhali, Ramgati of Lakshmipur,
Chairmanghat of Noakhali). The highest CPUE of Jatka was 6.05kg/100m net/ hour at Ramgati and the lowest
was 4.8kg/100m net/ hour at Chandpur and moderate was 5.15 kg/100m net/hour at Chairmanghat. The CPUE
of Jatka was 100kg/boat/day at Chandpur and fishing season is December to March. The CPUE of Jatka is
110kg/boat/day at Ramgati and fishing season is November to March. The CPUE of Jatka was 106kg/boat/day
at Chairmanghat and fishing season is September to January. 35%, 33% and 32% kg of Jatka was
caught/boat/day at Ramgati, Chairmanghat and Chandpur respectively. The highest abundance of Jatka was
363/5.40×107 m2 at Ramgati and the lowest is 288/5.40×107 m2 at Chandpur. The moderate abundance of Jatka
was 309/5.40×107 m2 in Chairmanghat. Relatively young men of 31-45 years age group dominated in all study
locations. In the study 90% of fishermen were Muslim and majority belonged to nuclear family with members
ranging from 5 to 6, above the national average. As for standard of living, nearly half (47-55%) of fisher’s family
do not uses sanitary latrine. In study 100% have access to tube-well water. About 59% of fishers’ family had
corrugated tin-shed house in all study areas. It was found that in average 55% are workers in fishing boats on
profit sharing basis and the rest are single or group owner of either boat and/or net. Monthly income of the
fishers in study area reportedly very low in average BDT 4,500 during season and only BDT 2000 during offseason.
One third of fishers’ were found to be literate who can read and write one was reportedly know how
to sign his name and the rest was reportedly illiterate. In terms of general health care, roughly one third get
access to medical public or other form of Medicare. In average 45% reportedly get some form of subsidy (VGF
card) from Government during banning period but it is not sufficient to maintain their livelihood.
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Papers by Md. Solaiman Hossain
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 (FGD) and participatory rural appraisal (PRA) among fishermen and market
chain members. The CPUE of Jatka was 63-84kg/1000m during peak season (Nov-Jan) and 30-37kg/1000m
net/hour during lean season (Feb-Mar) respectively in three spots (Sadar of Noakhali, Ramgati of Lakshmipur,
Chairmanghat of Noakhali). The highest CPUE of Jatka was 6.05kg/100m net/ hour at Ramgati and the lowest
was 4.8kg/100m net/ hour at Chandpur and moderate was 5.15 kg/100m net/hour at Chairmanghat. The CPUE
of Jatka was 100kg/boat/day at Chandpur and fishing season is December to March. The CPUE of Jatka is
110kg/boat/day at Ramgati and fishing season is November to March. The CPUE of Jatka was 106kg/boat/day
at Chairmanghat and fishing season is September to January. 35%, 33% and 32% kg of Jatka was
caught/boat/day at Ramgati, Chairmanghat and Chandpur respectively. The highest abundance of Jatka was
363/5.40×107 m2 at Ramgati and the lowest is 288/5.40×107 m2 at Chandpur. The moderate abundance of Jatka
was 309/5.40×107 m2 in Chairmanghat. Relatively young men of 31-45 years age group dominated in all study
locations. In the study 90% of fishermen were Muslim and majority belonged to nuclear family with members
ranging from 5 to 6, above the national average. As for standard of living, nearly half (47-55%) of fisher’s family
do not uses sanitary latrine. In study 100% have access to tube-well water. About 59% of fishers’ family had
corrugated tin-shed house in all study areas. It was found that in average 55% are workers in fishing boats on
profit sharing basis and the rest are single or group owner of either boat and/or net. Monthly income of the
fishers in study area reportedly very low in average BDT 4,500 during season and only BDT 2000 during offseason.
One third of fishers’ were found to be literate who can read and write one was reportedly know how
to sign his name and the rest was reportedly illiterate. In terms of general health care, roughly one third get
access to medical public or other form of Medicare. In average 45% reportedly get some form of subsidy (VGF
card) from Government during banning period but it is not sufficient to maintain their livelihood.