Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development
Abstract Around the globe, plastic has been entering the aquatic system and is ingested by organisms. Identification, optimal digestion method, and characterization of the polymers to trace sources are of growing importance. Hence, the present work investigated microplastics accumulation, digestion...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
2023-02-01
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| Series: | Brazilian Journal of Biology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100434&lng=en&tlng=en |
| _version_ | 1811164861724360704 |
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| author | S. Riaz S. Nasreen Z. Burhan S. Shafique S. A. Alvi M. A. Khan |
| author_facet | S. Riaz S. Nasreen Z. Burhan S. Shafique S. A. Alvi M. A. Khan |
| author_sort | S. Riaz |
| collection | DOAJ |
| description | Abstract Around the globe, plastic has been entering the aquatic system and is ingested by organisms. Identification, optimal digestion method, and characterization of the polymers to trace sources are of growing importance. Hence, the present work investigated microplastics accumulation, digestion protocol efficiency, and characterization of polymers with FTIR analysis in the guts of five fishes (Lethrinus nebulosus, Rastrelliger kanagurta, Acanthopagrus arabicus, Otolithes ruber, and Euryglossa orientalis) from the Karachi coastal area, Arabian Sea. A total of 1154 microplastics (MPs) were ingested by 29 out of 33 fish species (87%). The highest average MP/fish was recorded in Otolithes ruber (54) and the lowest in Rastrelliger kanagurta (19.42). Microfibers were the most abundant shape with the highest numbers (35.52%) as compared to the rest of the MPs identified. Transparent microfibers were recorded as the highest in numbers followed by red, black, blue, and green. In this study, KOH with different concentrations and exposure times along with oxidizing agent hydrogen peroxide was tested (Protocols 3 and 4). Results showed these bases were highly efficient in obtaining optimal digestion of the samples. FTIR analysis confirmed that the majority of the polymers found in the fish guts were polyethylene and polypropylene. This study validated for the first time the presence of these polymers of plastic in marine fish from Pakistan. |
| first_indexed | 2024-04-10T15:27:58Z |
| format | Article |
| id | doaj.art-64e709f5de984bf5aed5501c081254f3 |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-04-10T15:27:58Z |
| publishDate | 2023-02-01 |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-64e709f5de984bf5aed5501c081254f32023-02-14T07:33:59ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-43752023-02-018410.1590/1519-6984.270694Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method developmentS. Riazhttps://orcid.org/0000-0002-9481-3058S. NasreenZ. Burhanhttps://orcid.org/0000-0003-1579-1346S. Shafiquehttps://orcid.org/0000-0003-2722-2925S. A. AlviM. A. KhanAbstract Around the globe, plastic has been entering the aquatic system and is ingested by organisms. Identification, optimal digestion method, and characterization of the polymers to trace sources are of growing importance. Hence, the present work investigated microplastics accumulation, digestion protocol efficiency, and characterization of polymers with FTIR analysis in the guts of five fishes (Lethrinus nebulosus, Rastrelliger kanagurta, Acanthopagrus arabicus, Otolithes ruber, and Euryglossa orientalis) from the Karachi coastal area, Arabian Sea. A total of 1154 microplastics (MPs) were ingested by 29 out of 33 fish species (87%). The highest average MP/fish was recorded in Otolithes ruber (54) and the lowest in Rastrelliger kanagurta (19.42). Microfibers were the most abundant shape with the highest numbers (35.52%) as compared to the rest of the MPs identified. Transparent microfibers were recorded as the highest in numbers followed by red, black, blue, and green. In this study, KOH with different concentrations and exposure times along with oxidizing agent hydrogen peroxide was tested (Protocols 3 and 4). Results showed these bases were highly efficient in obtaining optimal digestion of the samples. FTIR analysis confirmed that the majority of the polymers found in the fish guts were polyethylene and polypropylene. This study validated for the first time the presence of these polymers of plastic in marine fish from Pakistan.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100434&lng=en&tlng=enFTIR analysispolyethyleneKarachi coastpolypropyleneAcanthopagrus arabicus |
| spellingShingle | S. Riaz S. Nasreen Z. Burhan S. Shafique S. A. Alvi M. A. Khan Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development Brazilian Journal of Biology FTIR analysis polyethylene Karachi coast polypropylene Acanthopagrus arabicus |
| title | Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development |
| title_full | Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development |
| title_fullStr | Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development |
| title_full_unstemmed | Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development |
| title_short | Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development |
| title_sort | microplastics assessment in arabian sea fishes accumulation characterization and method development |
| topic | FTIR analysis polyethylene Karachi coast polypropylene Acanthopagrus arabicus |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000100434&lng=en&tlng=en |
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