First record of plastic ingestion by an important commercial native fish (Prochilodus lineatus) in the middle Tietê River basin, Southeast Brazil

Urbanski, Bruna Q.; Denadai, Ana Clara; Azevedo‐Santos, Valter M.; Nogueira, Marcos Gomes

doi:10.1590/1676-0611-bn-2020-1005

Cited by 20 publications

(6 citation statements)

References 37 publications

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“…The microplastic particles found in the present study were primarily blue fibers. A predominance of blue microplastic fibers in fish was also reported by Chota-Macuyama and Chong Mendoza (2020) for the Iquitos region, and Urbanski et al (2020) for the middle Tietê River basin, in southeastern Brazil. Fibers are considered among the most dangerous forms of microplastic due the ease with which they accumulate in the digestive tract, where they can cause more serious intestinal toxic effects than others forms of microplastic (Qiao et al 2019).…”

Section: Discussionsupporting

confidence: 76%

Microplastic occurrence in fish species from the Iquitos region in Peru, western Amazonia

et al. 2023

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The contamination of aquatic environments by microplastic has become a major threat to biodiversity. The presence of microplastic is documented in the aquatic fauna of the oceans, but, in the Amazon basin, reports on microplastic occurrence are few. The present study surveyed microplastic occurrence in fishes in an area of the Peruvian Amazon. We sampled 61 specimens of 15 commercial species from local markets in the city of Iquitos, Loreto Department. We detected a total of 2337 microplastic particles, 1096 in the gills and 1241 in the internal organs (esophagus, stomach, intestine, liver, gonads, pancreas, swim bladder and heart). The prevalence of microplastic particles was 100% and the overall average abundance was of 38.3 particles per individual (17.9 particles per individual in gills and 20.3 particles per individual in internal organs). Most particles were found in carnivorous fish. There was no correlation of particle abundance with fish standard length and weight. These results provided evidence of the degree of microplastic contamination of the fish fauna in the region of Iquitos.

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Section: Discussionsupporting

confidence: 76%

Microplastic occurrence in fish species from the Iquitos region in Peru, western Amazonia

et al. 2023

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“…It is worth mentioning that P. lineatus, a detrivorous fish, was the only species found in all studied sites. Its distribution evidences a wide resilience to the observed contrasting water quality conditions, including the ingestion of considerable amounts of microplastics [51]. Prochilodus lineatus is an abundant species in the middle Tietê River basin, representing the main fishery resource of the region, with a socio-economics relevance.…”

Section: Ichthyofaunamentioning

confidence: 99%

Excessive Eutrophication as a Chemical Barrier for Fish Fauna Dispersion: A Case Study in the Emblematic Tietê River (São Paulo, Brazil)

Urbanski,

Nogueira

2024

Water

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The Tietê River receives most of the effluents and diffuse wastes from the São Paulo metropolis (21.9 million inhabitants). The study aimed to assess the extent to which environmental changes affected the fish fauna. We compared, in rainy and dry seasons, three sites in Tietê and three in tributaries with much better water quality conditions. No physical barriers exist between the sites. Fish were sampled with gillnets (exposed overnight) and the assemblage’s ecological attributes calculated. Water depth, transparency, temperature, electrical conductivity, dissolved oxygen, turbidity, total dissolved solids, pH, redox potential, total phosphorus, total nitrogen, and chlorophyll were simultaneously determined. Low oxygen concentrations (near zero in the rainy period), and the opposite for nutrients and total solids, separated the predominantly hypereutrophic Tietê from the tributaries (PCA). Differences in the fish assemblages were also evidenced (nMDS), including a higher richness per sample in tributaries (11 to 14 spp.) compared to Tietê (3 to 4 spp.). Siluriformes with accessory breathing dominated in Tietê and the highly tolerant detritivorous Prochilodus lineatus (the main commercial fish) was the only species found in all sites. The species correlated positively with oxygen in the tributaries and with turbidity, redox potential, and nutrients in Tietê (DistLM) (rainy season). Recovery measures are urgently required.

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“…Ingestion of anthropogenic debris -i.e., material of human origin such as microplastics, hooks, among others -by freshwater fishes has been documented for numerous hydrographic basins (Norén 2007, Azevedo-Santos et al 2019. In southeastern Brazil, there are reports from Paraíba do Sul (Lima et al 2021) and the upper Paraná River (e.g., Urbanski et al 2020). However, there is no information about the ingestion of anthropogenic residues by fish assemblages of the Doce River basin.…”

Section: Introductionmentioning

confidence: 99%

Besides Mining, Dams, Non-Native Species... The Ingestion of Anthropogenic Debris by Fishes in the Doce River Basin, Southeastern Brazil

Coelho,

Guimarães,

Ferreira

et al. 2023

Oecol. Aust.

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The Doce River basin is impacted by mining, dams, introduction of non-native species, and other human actions. Here we show an additional threat -the ingestion of anthropogenic objects by the freshwater fishes of the region. We collected 234 specimens at five sites across the Doce River basin. We found that seventeen specimens (7.3% of the total) of five fish species ingested anthropogenic debris (including those from fishing activities). Our findings show the need for new studies, especially to evaluate drifting residues in the main river channel. In addition, our results suggest the need for actions to reduce the pollution and other anthropic impacts in the Rio Doce basin.

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First record of plastic ingestion by an important commercial native fish (Prochilodus lineatus) in the middle Tietê River basin, Southeast Brazil

Cited by 20 publications

References 37 publications

Microplastic occurrence in fish species from the Iquitos region in Peru, western Amazonia

Microplastic occurrence in fish species from the Iquitos region in Peru, western Amazonia

Excessive Eutrophication as a Chemical Barrier for Fish Fauna Dispersion: A Case Study in the Emblematic Tietê River (São Paulo, Brazil)

Besides Mining, Dams, Non-Native Species... The Ingestion of Anthropogenic Debris by Fishes in the Doce River Basin, Southeastern Brazil

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