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  1. AU="Ali, Mir Mohammad"
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  1. Artikel ; Online: Population dynamics and stock assessment of Red snapper (Lutjanus johnii) in the Bay of Bengal Bangladesh waters

    Barua, Suman / Liu, Qun / Alam, Mohammed Shahidul / Kanak, Md. Khaled / Ali, Mir Mohammad

    Regional Studies in Marine Science. 2023 Oct., v. 63 p.102983-

    2023  

    Abstract: Red snapper (Lutjanus johnii) is one of the most significant commercial fish species in the marine waters of Bangladesh. A comprehensive understanding of the biology and dynamics of fish is important for the effective management of the fishery. Therefore, ...

    Abstract Red snapper (Lutjanus johnii) is one of the most significant commercial fish species in the marine waters of Bangladesh. A comprehensive understanding of the biology and dynamics of fish is important for the effective management of the fishery. Therefore, it would be the first study on this highly valuable commercial species to draw stock status and assessment of reference points in the upper Bay of Bengal, Bangladesh using three different length-based methodological approaches which are TropFishR (Tropical Fisheries Analysis with R), LBSPR (Length-based Spawning Potential Ratio), LBI (Length based Indicators), and a catch-based method DB-SRA (Depletion-based Stock Reduction Analysis). An allometric growth pattern (b=2.66) was observed in the length-weight relationship of Red snapper. The VBGF (von Bertanlanffy Growth Function) life history parameters for Red snapper were L∞=99.33 cm, k=0.16 year⁻¹, and based on LCCC (Length Converted Catch Curve) analysis, the total mortality (Z=0.59 year⁻¹), natural mortality (M=0.24 year⁻¹) and fishing mortality (F=0.35 year⁻¹) were estimated. The results show that this fishery is currently likely to be overfished due to overexploitation and the stock’s spawning biomass (SPR=28%) is below the target reference point because most of the catch (72%) was found to have under the maturity level. This study recommended a length to catch between 51 and 62 cm and proposed a yearly landing limit of 175 mt as OFL (Over Fishing Limit) for the next ten years in line with the annual fishing ban to raise the stock’s biomass over the Bmsy level for maintaining sustainable yield of 271 mt as MSY.
    Schlagwörter Lutjanus ; allometry ; biomass ; fish ; fisheries ; life history ; marine science ; mortality ; population dynamics ; Bangladesh ; Bay of Bengal ; The Bay of Bengal ; Red snapper (Lutjanus johnii) ; Spawning potential ratio (SPR) ; Length-based indicators ; Overexploitation ; Mesh size regulation ; Over Fishing Limit (OFL)
    Sprache Englisch
    Erscheinungsverlauf 2023-10
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel ; Online
    ISSN 2352-4855
    DOI 10.1016/j.rsma.2023.102983
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  2. Artikel ; Online: Unveiling microplastics pollution in a subtropical rural recreational lake: A novel insight.

    Islam, Abu Reza Md Towfiqul / Hasan, Mehedi / Sadia, Moriom Rahman / Mubin, Al-Nure / Ali, Mir Mohammad / Senapathi, Venkatramanan / Idris, Abubakr M / Malafaia, Guilherme

    Environmental research

    2024  Band 250, Seite(n) 118543

    Abstract: While global attention has been primarily focused on the occurrence and persistence of microplastics (MP) in urban lakes, relatively little attention has been paid to the problem of MP pollution in rural recreational lakes. This pioneering study aims to ... ...

    Abstract While global attention has been primarily focused on the occurrence and persistence of microplastics (MP) in urban lakes, relatively little attention has been paid to the problem of MP pollution in rural recreational lakes. This pioneering study aims to shed light on MP size, composition, abundance, spatial distribution, and contributing factors in a rural recreational lake, 'Nikli Lake' in Kishoreganj, Bangladesh. Using density separation, MPs were extracted from 30 water and 30 sediment samples taken from ten different locations in the lake. Subsequent characterization was carried out using a combination of techniques, including a stereomicroscope, Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FE-SEM). The results showed a significant prevalence of MPs in all samples, with an average amount of 109.667 ± 10.892 pieces/kg
    Mesh-Begriff(e) Lakes/chemistry ; Lakes/analysis ; Microplastics/analysis ; Water Pollutants, Chemical/analysis ; Environmental Monitoring/methods ; Bangladesh ; Geologic Sediments/analysis ; Geologic Sediments/chemistry
    Sprache Englisch
    Erscheinungsdatum 2024-02-26
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2024.118543
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  3. Artikel: Extension of distribution range of Oman gurnard in Bay of Bengal

    Hanif, Md. Abu / Hossen, Shaharior / Chaklader, Md. Reaz / Mahfuj, Sarower / Ali, Mir Mohammad

    Journal of applied ichthyology. 2022 Sept., v. 38, no. 5

    2022  

    Abstract: Five specimens of Oman gurnard, Lepidotrigla omanensis (58.7–64.4 mm standard length), distributed widely in the Western Indian Ocean, including Somalia, Oman, Pakistan, Southwest India, and Myanmar, were collected at Patharghata (Barguna district) and ... ...

    Abstract Five specimens of Oman gurnard, Lepidotrigla omanensis (58.7–64.4 mm standard length), distributed widely in the Western Indian Ocean, including Somalia, Oman, Pakistan, Southwest India, and Myanmar, were collected at Patharghata (Barguna district) and Swarupkati (Pirojpur District) fish markets in Bangladesh between March and May 2020. The specimens were caught in the Bay of Bengal. The collected specimens were confirmed as L. omanensis by observing the morphological features: a blade‐like spine at each corner of the upper jaw, a lateral line with 54–62 pored scales, a pectoral fin reaching the 5th to 7th anal fin rays, the first dorsal fin with a large red blotch covering the distal third to sixth spine, and the structure and position of opercular and cleithral spines. Previously, four gurnard species have been reported from the coastal waters of Bangladesh. However, the current study's latitudinal range extension of Oman gurnard demonstrated the potential role to enrich the fish diversity in the Northern Bay of Bengal. A detailed description of the specimens was provided, and intraspecific variations among the specimens of same genus available in the reported area were documented and compared.
    Schlagwörter Lepidotrigla ; fins ; fish ; ichthyology ; Bangladesh ; Bay of Bengal ; India ; Indian Ocean ; Myanmar ; Oman ; Pakistan ; Somalia
    Sprache Englisch
    Erscheinungsverlauf 2022-09
    Umfang p. 545-550.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 283875-8
    ISSN 0175-8659
    ISSN 0175-8659
    DOI 10.1111/jai.14350
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  4. Artikel ; Online: Hydrological distribution of physicochemical parameters and heavy metals in surface water and their ecotoxicological implications in the Bay of Bengal coast of Bangladesh.

    Islam, Md Saiful / Idris, Abubakr M / Islam, Abu Reza Md Towfiqul / Ali, Mir Mohammad / Rakib, Md Refat Jahan

    Environmental science and pollution research international

    2021  Band 28, Heft 48, Seite(n) 68585–68599

    Abstract: Accumulation of heavy metals in the coastal ecosystem has become a prodigious problem in any developing countries like Bangladesh. The impact of human activities on some physicochemical parameters and heavy metals was studied in surface water of the ... ...

    Abstract Accumulation of heavy metals in the coastal ecosystem has become a prodigious problem in any developing countries like Bangladesh. The impact of human activities on some physicochemical parameters and heavy metals was studied in surface water of the Bengal coast, Bangladesh. For ease of description, the fourteen study stations were categorized into four regions of the coastal sites of Bangladesh to determine physicochemical parameters and nine heavy metals like chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd), lead (Pb), iron (Fe), manganese (Mn), and zinc (Zn) in water samples. The mean concentrations for water physico-chemistry are temperature (27.7±1.2 °C), pH (7.4±0.27), electrical conductivity (EC) (41.8±6.6 mS/cm), dissolved oxygen (DO) (6.7±0.69 mg/L), turbidity (58.5±12.0 NTU), fluoride (1.4±1.2 mg/L), chloride (126±66.3 mg/L), sulfate (120±90.5 mg/L), nitrate (4.7±2.5 mg/L), and phosphate (4.7±2.5 mg/L). While the mean concentrations of Cr, Ni, Cu, As, Cd, Pb, Fe, Mn, and Zn were 150±58.3, 40.2±10.1, 186±114, 77.3±31.3, 32.7±20.7, 66.7±32.5, 871±268, 178±41.4, and 222±100 μg/L, respectively. As a whole, average concentration of studied metals in surface water followed the decreasing order of Fe > Zn > Cu > Mn > Cr > Pb > As > Ni > Cd. Heavy metals in water samples were much higher than the water quality guidelines for freshwater quality criteria for protection of aquatic life and drinking, indicated that the water of the study areas may create health hazard. The outcomes of the contamination factor (CF), pollution load index (PLI), Nemerow's pollution index (NPI), degree of contamination (C
    Mesh-Begriff(e) Bangladesh ; Bays ; Ecosystem ; Environmental Monitoring ; Humans ; Metals, Heavy/analysis ; Risk Assessment ; Water Pollutants, Chemical/analysis
    Chemische Substanzen Metals, Heavy ; Water Pollutants, Chemical
    Sprache Englisch
    Erscheinungsdatum 2021-07-17
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-15353-9
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  5. Artikel: Fish Diversity in the Andharmanik River Sanctuary in Bangladesh

    Ali, Mir Mohammad / Ali, Md. Lokman / Rahman, Md. Jalilur / Wahab, Md. Abdul

    Croatian journal of fisheries. 2020 Mar. 01, v. 78, no. 1

    2020  

    Abstract: Loss of fish biodiversity, especially in the inland and coastal areas, is a major concern in sustainable fish production. Indiscriminate fish catch, climate change and many other anthropogenic activities synergistically affect fish biodiversity. To ... ...

    Abstract Loss of fish biodiversity, especially in the inland and coastal areas, is a major concern in sustainable fish production. Indiscriminate fish catch, climate change and many other anthropogenic activities synergistically affect fish biodiversity. To formulate a sustainable fish biodiversity conservation plan, fish biodiversity in the Andharmanik River, a 40-km-long Hilsa shad sanctuary in the southern part of Bangladesh, was assessed. The study was conducted to understand the status of fish species diversity through sampling in three sampling stations between December 2014 and November 2015. A total of 93 fish species were found belonging to 66 genera, 45 families and 14 orders. Perciformes (27.65%) was found to be the most dominant order, followed by Cypriniformes (20.21%), Siluriformes (21.28%) Clupeiformes (7.45%) Mastacembeliformes (4.26%) and Channiformes (4.26%). Out of the 93 fish species of the river, the percentage compositions of the vulnerable, endangered, critically endangered and not threatened were found to be 14%, 11%, 6% and 59%, respectively. Four population indices viz. Shannon-Wiener’s diversity index (H), Simpson’s dominance index (D), Simpson’s index of diversity (1-D) and Margalef’s index (d) were applied to demonstrate species diversity, richness and evenness of fish species in sampling areas, and the overall values of the indices were 2.70-3.51, 0.10-0.12, 0.88-0.90 and 7.84-8.19, respectively. The main threats to fish biodiversity were reviewed and the measures for fish biodiversity conservation of the river recommended. Indiscriminate fishing using biodiversity destructive gears, as well as losing hydrological and ecological connectivity with the surrounding habitats, were identified as major threats to biodiversity in the Andharmanik River. Effective sanctuary-based co-management, immediate actions for habitat enhancement to conserve and improve fish biodiversity in the river were recommended. Necessary steps to improve hydrological and ecological connectivity for habitat protection and elimination of all destructive fishing gears in order to conserve biodiversity in the Andharmanik River were also suggested.
    Schlagwörter Cypriniformes ; Perciformes ; Siluriformes ; Tenualosa ilisha ; anthropogenic activities ; aquacultural and fisheries equipment ; biodiversity conservation ; climate change ; coasts ; collaborative management ; fish ; fish production ; fisheries ; gears ; habitat conservation ; habitats ; hydrology ; population ; rivers ; sampling ; species diversity ; Bangladesh
    Sprache Englisch
    Erscheinungsverlauf 2020-0301
    Umfang p. 21-32.
    Erscheinungsort Sciendo
    Dokumenttyp Artikel
    Anmerkung NAL-light
    ZDB-ID 2726499-3
    ISSN 1848-0586 ; 1330-061X
    ISSN (online) 1848-0586
    ISSN 1330-061X
    DOI 10.2478/cjf-2020-0003
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  6. Artikel ; Online: Hydrological distribution of physicochemical parameters and heavy metals in surface water and their ecotoxicological implications in the Bay of Bengal coast of Bangladesh

    Islam, Md Saiful / Idris, Abubakr M. / Islam, Abu Reza Md. Towfiqul / Ali, Mir Mohammad / Rakib, Md. Refat Jahan

    Environ Sci Pollut Res. 2021 Dec., v. 28, no. 48 p.68585-68599

    2021  

    Abstract: Accumulation of heavy metals in the coastal ecosystem has become a prodigious problem in any developing countries like Bangladesh. The impact of human activities on some physicochemical parameters and heavy metals was studied in surface water of the ... ...

    Abstract Accumulation of heavy metals in the coastal ecosystem has become a prodigious problem in any developing countries like Bangladesh. The impact of human activities on some physicochemical parameters and heavy metals was studied in surface water of the Bengal coast, Bangladesh. For ease of description, the fourteen study stations were categorized into four regions of the coastal sites of Bangladesh to determine physicochemical parameters and nine heavy metals like chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd), lead (Pb), iron (Fe), manganese (Mn), and zinc (Zn) in water samples. The mean concentrations for water physico-chemistry are temperature (27.7±1.2 °C), pH (7.4±0.27), electrical conductivity (EC) (41.8±6.6 mS/cm), dissolved oxygen (DO) (6.7±0.69 mg/L), turbidity (58.5±12.0 NTU), fluoride (1.4±1.2 mg/L), chloride (126±66.3 mg/L), sulfate (120±90.5 mg/L), nitrate (4.7±2.5 mg/L), and phosphate (4.7±2.5 mg/L). While the mean concentrations of Cr, Ni, Cu, As, Cd, Pb, Fe, Mn, and Zn were 150±58.3, 40.2±10.1, 186±114, 77.3±31.3, 32.7±20.7, 66.7±32.5, 871±268, 178±41.4, and 222±100 μg/L, respectively. As a whole, average concentration of studied metals in surface water followed the decreasing order of Fe > Zn > Cu > Mn > Cr > Pb > As > Ni > Cd. Heavy metals in water samples were much higher than the water quality guidelines for freshwater quality criteria for protection of aquatic life and drinking, indicated that the water of the study areas may create health hazard. The outcomes of the contamination factor (CF), pollution load index (PLI), Nemerow’s pollution index (NPI), degree of contamination (Cd), and modified degree of contamination (mCd) varied spatially and most of the water samples were moderately to heavily polluted.
    Schlagwörter aquatic organisms ; arsenic ; cadmium ; chlorides ; chromium ; coastal ecosystems ; coasts ; copper ; ecotoxicology ; electrical conductivity ; fluorides ; health hazards ; humans ; iron ; lead ; manganese ; nickel ; nitrates ; oxygen ; pH ; phosphates ; pollution load ; sulfates ; surface water ; temperature ; turbidity ; water quality ; zinc ; Bangladesh ; Bay of Bengal
    Sprache Englisch
    Erscheinungsverlauf 2021-12
    Umfang p. 68585-68599.
    Erscheinungsort Springer Berlin Heidelberg
    Dokumenttyp Artikel ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-15353-9
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  7. Artikel ; Online: Assessment of microplastics pollution in aquatic species (fish, crab, and snail), water, and sediment from the Buriganga River, Bangladesh: An ecological risk appraisals.

    Haque, Md Rashedul / Ali, Mir Mohammad / Ahmed, Wahida / Siddique, Md Abu Bakar / Akbor, Md Ahedul / Islam, Md Saiful / Rahman, Md Mostafizur

    The Science of the total environment

    2022  Band 857, Heft Pt 1, Seite(n) 159344

    Abstract: Current work focus on microplastic (MPs) occurrence in the water, sediment, and aquatic species (fish, crab, and snail) of the Buriganga River, Bangladesh, with an ecological risk assessment perspective. It also includes the distribution of MPs in ... ...

    Abstract Current work focus on microplastic (MPs) occurrence in the water, sediment, and aquatic species (fish, crab, and snail) of the Buriganga River, Bangladesh, with an ecological risk assessment perspective. It also includes the distribution of MPs in different river ecosystem segments and the presence of heavy metal (loid)s (HMs) in water, sediments, and MPs surface. The MPs were inspected by stereomicroscope to identify the shapes, color, and size, and Fourier transform infrared (FTIR) spectroscopy was used to characterize polymer types. The samples concentration of four HMs viz., As, Cd, Cr, and Pb were determined by atomic absorption spectrometry (AAS). The possible MPs content in water, sediment, fish, crab, and snail were varied from 0.250 to 0.117 MPs/mL, 3.5-8.17 MPs/g, 0.65-3.82 MPs/g, 3.75-4.28 MPs/g, and 0.84-1.12 MPs/g, respectively. Fibers and fragments were the most dominant shape, less than 0.5 mm was dominant in size, and blue was the dominant color. In the evaluation of the chemical composition of MPs in water, sediment, fish, snail, and crab samples, Polyethylene terephthalate (PETE), Ethylene-vinyl acetate (EVA), High-density polyethylene (HDPE), Acrylonitrile butadiene styrene (ABS), Cellulose acetate (CA), and Nylon were identified. Regarding HMs load, the river demonstrated a highly polluted environment following the abundance pattern Cr > Pb > As>Cd. SEM-EDAX of MPs was conducted to investigate the surface MP's surface and elemental composition. It reveals that the MPs surface has characteristic flakes, cracks, and adhering particles along with Si, K, Au, C, and O on the surface studied MPs. There is no significant relationship found among the ecosystem segments. However, Ompok bimaculatus species show a negative relationship of MPs distribution with water and sediment. Moreover, according to the ecological risk of MPs pollution in the Buriganga River, it was in category-I, indicating considerable pollution load due to the presence of MPs.
    Mesh-Begriff(e) Animals ; Microplastics ; Rivers/chemistry ; Plastics ; Brachyura ; Water/analysis ; Ecosystem ; Geologic Sediments/analysis ; Cadmium/analysis ; Bangladesh ; Lead/analysis ; Environmental Monitoring/methods ; Water Pollutants, Chemical/analysis ; Snails ; Risk Assessment
    Chemische Substanzen Microplastics ; Plastics ; Water (059QF0KO0R) ; Cadmium (00BH33GNGH) ; Lead (2P299V784P) ; Water Pollutants, Chemical
    Sprache Englisch
    Erscheinungsdatum 2022-10-12
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2022.159344
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  8. Artikel ; Online: Sources and management of marine litter pollution along the Bay of Bengal coast of Bangladesh.

    Islam, Md Saiful / Phoungthong, Khamphe / Islam, Abu Reza Md Towfiqul / Ali, Mir Mohammad / Ismail, Zulhilmi / Shahid, Shamsuddin / Kabir, Md Humayun / Idris, Abubakr M

    Marine pollution bulletin

    2022  Band 185, Heft Pt B, Seite(n) 114362

    Abstract: Marine debris is often detected everywhere in the oceans after it enters the marine ecosystems from various sources. Marine litter pollution is a major threat to the marine ecosystem in Bangladesh. A preliminary study was conducted to identify the ... ...

    Abstract Marine debris is often detected everywhere in the oceans after it enters the marine ecosystems from various sources. Marine litter pollution is a major threat to the marine ecosystem in Bangladesh. A preliminary study was conducted to identify the sources of marine litter (plastics, foamed plastic, clothes, glass, ceramic, metals, paper, and cardboard) along the Bay of Bengal coast. From the observations, the range of abundance of the collected marine litter was 0.14-0.58 items/m
    Mesh-Begriff(e) Ecosystem ; Bangladesh ; Bays ; Environmental Pollution ; Plastics
    Chemische Substanzen Plastics
    Sprache Englisch
    Erscheinungsdatum 2022-11-18
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2022.114362
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  9. Artikel ; Online: Toxic metal pollution and ecological risk assessment in water and sediment at ship breaking sites in the Bay of Bengal Coast, Bangladesh.

    Ali, Mir Mohammad / Islam, Md Saiful / Islam, Abu Reza Md Towfiqul / Bhuyan, Md Simul / Ahmed, A S Shafiuddin / Rahman, Md Zillur / Rahman, Md Mostafizur

    Marine pollution bulletin

    2022  Band 175, Seite(n) 113274

    Abstract: Quantification of four toxic metals (As, Cr, Cd, and Pb) in water and sediments at the Sitakunda ship breaking area in Bangladesh was studied. Along with this, sediment quality and ecological risk were evaluated for the metal intrusion to the study area. ...

    Abstract Quantification of four toxic metals (As, Cr, Cd, and Pb) in water and sediments at the Sitakunda ship breaking area in Bangladesh was studied. Along with this, sediment quality and ecological risk were evaluated for the metal intrusion to the study area. A total sample number of 120 (water; n = 60 and sediment; n = 60) were analyzed for both winter and summer seasons using atomic absorption spectrophotometer (AAS). The trace metal concentration in both water and sediment showed decreasing trend as follows; Cr (mean-W: 0.118 mg/L; mean-S:121.87 mg/kg) > Pb (mean-W: 0.064 mg/L; mean-S: 65.31 mg/kg) > As (mean-W: 0.03 mg/L; mean-S: 32.53 mg/kg) > Cd (mean-W: 0.004 mg/L; mean-S: 4.81 mg/kg). However, in both segments, the concentrations of the toxic metals exceeded the recommended acceptable limits. As and Cd showed significant variation (water and sediment) between the seasons, while Pb and Cr had no seasonal impact. Metal pollution index (MPI) and contamination factor (CF) was evaluated and revealed that the study area exhibited the critical score of water quality (MPI > 100). The cumulative effect of the metal concentrations was high (CI > 3). The assessed mean geoaccumulaiton index (I
    Mesh-Begriff(e) Bangladesh ; Bays ; Environmental Monitoring ; Geologic Sediments ; Metals, Heavy/analysis ; Risk Assessment ; Ships ; Water Pollutants, Chemical/analysis ; Water Quality
    Chemische Substanzen Metals, Heavy ; Water Pollutants, Chemical
    Sprache Englisch
    Erscheinungsdatum 2022-01-20
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2021.113274
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Spatiotemporal variation and toxicity of trace metals in commercially important fish of the tidal Pasur River in Bangladesh

    Ali, Mir Mohammad / Ali, Mohammad Lokman / Bhuyan, Md. Simul / Islam, Md Saiful / Zillur Rahman, Md / Alam, Md. Wahidul / Das, Monika / Mustary, Sobnom / Islam, Md. Nazrul

    Environmental science and pollution research. 2022 June, v. 29, no. 26 p.40131-40145

    2022  

    Abstract: The release of toxic metals in the water creates an adverse condition for the living organisms (e.g., fish). The aim of this research was to learn more about the spatiotemporal variations and toxicity of heavy metals (As, Cr, Cd, and Pb) among fish ... ...

    Abstract The release of toxic metals in the water creates an adverse condition for the living organisms (e.g., fish). The aim of this research was to learn more about the spatiotemporal variations and toxicity of heavy metals (As, Cr, Cd, and Pb) among fish species that are economically important (Tenualosa ilisha, Gudusia chapra, Otolithoides pama, Setipinna phasa, Mystus vittatus, Glossogobius giuris, Harpadon nehereus, Pseudapocryptes elongatus, Polynemus paradiseus, and Sillaginopsis panijus) collected from Pasur River. Heavy metal (HMs) concentrations were evaluated using the atomic absorption spectrometry (AAS) technique. Most of the metals showed no significant variation spatiotemporally (p ˃ 0.05) except As and Cr showed substantial variation in terms of seasons (p ˂ 0.05). All fish species’ Cr and Pb concentrations, as well as As and Cd values, were estimated to be greater than FAO/WHO tolerable concentrations, implying that these metals pose danger to humans. HM has a total hazard quotient (THQ) value in individual fish species reported to be greater than 1, whereas an individual metal, arsenic, exceeds the standard value (THQ > 1), causing a significant noncarcinogenic issue in the study region. The target hazard (TR) value for As and Pb exceeds the USEPA norm (10⁻⁴) suggesting that long-term consumption of fish poses a chronic cancer risk to the people in the study field. According to the findings, the fish in the Pasur River are unfit for human consumption. The correlation matrix (CM) indicates that sources of metals are similar (e.g., industries, ships, agricultural inputs, etc.).
    Schlagwörter Glossogobius ; Gudusia chapra ; Harpadon nehereus ; Mystus ; Polynemus paradiseus ; Pseudapocryptes elongatus ; Setipinna phasa ; Sillaginopsis panijus ; Tenualosa ilisha ; United States Environmental Protection Agency ; arsenic ; atomic absorption spectrometry ; fish ; fish consumption ; heavy metals ; humans ; people ; pollution ; research ; risk ; rivers ; toxicity ; Bangladesh
    Sprache Englisch
    Erscheinungsverlauf 2022-06
    Umfang p. 40131-40145.
    Erscheinungsort Springer Berlin Heidelberg
    Dokumenttyp Artikel ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-18821-y
    Datenquelle NAL Katalog (AGRICOLA)

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