Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habits
Abstract Plastic pollution has become commonplace and knowledge about microplastics is limited in relation to their real threat to the aquatic biota present in the Amazon basin. Through fish species collected in Lake Janauacá and the Anavilhanas Archipelago, in the state of Amazonas, Brazil, we inve...
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Academia Brasileira de Ciências
2025-07-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| author | MARIA TEREZA V. DE SOUZA GRAZYELLE S. DA SILVA IGOR A. PINTO LIZANDRO MANZATO ADALBERTO LUIS VAL |
| author_facet | MARIA TEREZA V. DE SOUZA GRAZYELLE S. DA SILVA IGOR A. PINTO LIZANDRO MANZATO ADALBERTO LUIS VAL |
| author_sort | MARIA TEREZA V. DE SOUZA |
| collection | DOAJ |
| description | Abstract Plastic pollution has become commonplace and knowledge about microplastics is limited in relation to their real threat to the aquatic biota present in the Amazon basin. Through fish species collected in Lake Janauacá and the Anavilhanas Archipelago, in the state of Amazonas, Brazil, we investigated the ingestion of microplastics by Amazonian fish species with different eating habits. The fish were dissected, and the gastrointestinal tract underwent alkaline digestion for the separation of the microplastic particles. Using a stereomicroscope, the items characterized as microplastics were subjected to Fourier-transform infrared spectroscopy. Almost >60% of the analyzed fish species contained microplastics in their gastrointestinal tracts. Most of the microplastics were found in the intestine (91.5%) and the rest (8.5%) in the stomach. There were no significant differences in the feeding habits of the studied species, or between the locations. The characterization of microplastics highlights the possible sources of the microplastics such as discarded fishing artifacts, the lack of basic sanitation evident in the region and the lack of environmental education for tourists. This study provides data that can assist in the development and formation of practices that combat plastic pollution and raises awareness in regard to the correct disposal of plastics. |
| format | Article |
| id | doaj-art-6fbc932891e345a99998cea6c2cd96d1 |
| institution | Kabale University |
| issn | 1678-2690 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj-art-6fbc932891e345a99998cea6c2cd96d12025-08-20T03:45:57ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902025-07-0197suppl 310.1590/0001-3765202520241204Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habitsMARIA TEREZA V. DE SOUZAhttps://orcid.org/0000-0002-6928-5038GRAZYELLE S. DA SILVAhttps://orcid.org/0000-0002-2894-7277IGOR A. PINTOhttps://orcid.org/0009-0007-2884-5012LIZANDRO MANZATOhttps://orcid.org/0000-0003-4940-9555ADALBERTO LUIS VALhttps://orcid.org/0000-0002-3823-3868Abstract Plastic pollution has become commonplace and knowledge about microplastics is limited in relation to their real threat to the aquatic biota present in the Amazon basin. Through fish species collected in Lake Janauacá and the Anavilhanas Archipelago, in the state of Amazonas, Brazil, we investigated the ingestion of microplastics by Amazonian fish species with different eating habits. The fish were dissected, and the gastrointestinal tract underwent alkaline digestion for the separation of the microplastic particles. Using a stereomicroscope, the items characterized as microplastics were subjected to Fourier-transform infrared spectroscopy. Almost >60% of the analyzed fish species contained microplastics in their gastrointestinal tracts. Most of the microplastics were found in the intestine (91.5%) and the rest (8.5%) in the stomach. There were no significant differences in the feeding habits of the studied species, or between the locations. The characterization of microplastics highlights the possible sources of the microplastics such as discarded fishing artifacts, the lack of basic sanitation evident in the region and the lack of environmental education for tourists. This study provides data that can assist in the development and formation of practices that combat plastic pollution and raises awareness in regard to the correct disposal of plastics.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652025001201301&lng=en&tlng=enmicroplasticsgastrointestinal tractfishpollution |
| spellingShingle | MARIA TEREZA V. DE SOUZA GRAZYELLE S. DA SILVA IGOR A. PINTO LIZANDRO MANZATO ADALBERTO LUIS VAL Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habits Anais da Academia Brasileira de Ciências microplastics gastrointestinal tract fish pollution |
| title | Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habits |
| title_full | Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habits |
| title_fullStr | Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habits |
| title_full_unstemmed | Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habits |
| title_short | Occurrence of microplastics in the gastrointestinal tract of Amazonian fish species with different feeding habits |
| title_sort | occurrence of microplastics in the gastrointestinal tract of amazonian fish species with different feeding habits |
| topic | microplastics gastrointestinal tract fish pollution |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652025001201301&lng=en&tlng=en |
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