Microplastics ingestion by a common tropical freshwater fishing resource

Silva-Cavalcanti, Jacqueline Santos; Silva, José Diego B.; França, Elton José de; Araújo, Maria Christina Barbosa de; Gusmão, Felipe

doi:10.1016/j.envpol.2016.11.068

Cited by 296 publications

(136 citation statements)

References 47 publications

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“…Sanchez et al (2014) observed microplastics in GI tracts of 12% of wild gudgeons (Gobio gobio) from French rivers, slightly lower values compared with Biginagwaa et al (2016) who observed plastics in 20% of both Nile perch (Lates niloticus) and Nile tilapia (Oreochromis niloticus) in Lake Victoria, Africa, whereas Fazey and Ryan (2016) observed microplastics in the guts of 45% of two species of freshwater sunfish in a Texan river. Our values were similar to those of Silva-Cavalcanti et al (2017) who found microplastics in the GI tracts of 83% of the freshwater catfish species Hoplosternum littorale in South America. However, we caution the comparison with microplastics in fish in other studies due to the fact that feeding behaviours influence exposure to microplastics (Wright et al 2013;Setälä et al 2014).…”

Section: Microplastics Found In Fish Gi Tractssupporting

confidence: 91%

“…We speculate that this suggested selective uptake of fragments could be due to benthic feeding habits exposing fish to fragments sequestered in sediments. The proportion of fibers in fish GI tracts were similar to those reported by Silva-Cavalcanti et al (2017), who observed 47% fibers in South American catfish, and Jabeen et al (2017), who found between 57% and 88% in six species of freshwater fish in China. The vast majority of microplastics in the guts of sunfish from a river in central Texas were threads (96%) (Fazey and Ryan 2016).…”

Section: Types Of Microplasticssupporting

confidence: 88%

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Microplastics in the gastrointestinal tracts of fish and the water from an urban prairie creek

Campbell

Williamson

Hall

2017

FACETS

171

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Microplastics are defined as any plastic with a diameter ≤5 mm. Problems associated with these plastics such as contamination of both marine and freshwater environments and ingestion by aquatic organisms are of increasing concern. Our study quantifies the number of microplastics in a prairie creek immediately downstream of Regina, Saskatchewan, Canada. Water samples and five species of fish were collected from sample sites upstream and downstream of a wastewater treatment plant (WWTP) in the summers of 2015 and 2016. Samples were digested in either a Fe(II)/H 2 O 2 or NaClO solution and observed under a microscope where plastics present were enumerated by colour and type. At least one microplastic was detected in 73.5% of fish and 95.6% of water samples, showing that the creek does, in fact, contain microplastics. Concentrations were higher in water from upstream sites, likely due to dilution of creek water by the release of treated effluent. The results of this study provide baseline conditions for the presence of plastics in the creek prior to a major upgrade of the WWTP scheduled for completion in 2016.

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Section: Microplastics Found In Fish Gi Tractssupporting

confidence: 91%

Section: Types Of Microplasticssupporting

confidence: 88%

Microplastics in the gastrointestinal tracts of fish and the water from an urban prairie creek

Campbell

Williamson

Hall

2017

FACETS

171

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“…Laboratory studies have later shown that MPs were able to be translocated into other tissues of fish 22, 23 . Most field studies on fish have investigated the occurrence of MPs in the gastrointestinal tract [e.g., 24–26 ] but little is known about their presence in their edible tissues.…”

Section: Introductionmentioning

confidence: 99%

Microplastics in eviscerated flesh and excised organs of dried fish

Karami

Golieskardi

et al. 2017

Sci Rep

285

104

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There is a paucity of information about the occurrence of microplastics (MPs) in edible fish tissues. Here, we investigated the potential presence of MPs in the excised organs (viscera and gills) and eviscerated flesh (whole fish excluding the viscera and gills) of four commonly consumed dried fish species (n = 30 per species). The MP chemical composition was then determined using micro-Raman spectroscopy and elemental analysis with energy-dispersive X-ray spectroscopy (EDX). Out of 61 isolated particles, 59.0% were plastic polymers, 21.3% were pigment particles, 6.55% were non-plastic items (i.e. cellulose or actinolite), while 13.1% remained unidentified. The level of heavy metals on MPs or pigment particles were below the detection limit. Surprisingly, in two species, the eviscerated flesh contained higher MP loads than the excised organs, which highlights that evisceration does not necessarily eliminate the risk of MP intake by consumers. Future studies are encouraged to quantify anthropogenic particle loads in edible fish tissues.

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“…In a study of freshwater fish in three tributaries to Lake Michigan, ecological and morphological traits corresponded with microplastic abundance in gastrointestinal tissues, indicating that functional feeding group might influence microplastic consumption (McNeiush et al 2018). Furthermore, several riverine studies have found higher fish microplastic concentrations in urban landscapes (Peters and Bratton 2016;Silva-Cavalcanti et al 2017). Furthermore, several riverine studies have found higher fish microplastic concentrations in urban landscapes (Peters and Bratton 2016;Silva-Cavalcanti et al 2017).…”

mentioning

confidence: 99%

“…Thus, species traits and trophic level may be important factors related to fish microplastic concentrations and could influence whether microplastics accumulate in the gills or gastrointestinal tissues. Furthermore, several riverine studies have found higher fish microplastic concentrations in urban landscapes (Peters and Bratton 2016;Silva-Cavalcanti et al 2017). However, explicit relationships across trophic levels and the role of development have not been specifically investigated for lacustrine systems.…”

mentioning

confidence: 99%

Microplastic prevalence in two fish species in two U.S. reservoirs

Hurt

O’Reilly

Perry

2020

Limnol Oceanogr Letters

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The emergence of microplastics as a potential contaminant requires understanding the distribution and potential consumption of microplastics across ecosystems and species. Freshwater environments are known to have high concentrations of microplastics, but very little is known about the concentrations of microplastics within lacustrine fish. The very high prevalence and numbers of microplastics in two fish species in agricultural reservoirs in this study indicates that lacustrine fish may be at high risk of microplastic contamination. AbstractMicroplastics in the environment can impact feeding and physiological functions of organisms. Most studies have focused on marine systems, and studies of lacustrine organisms are less common. We examined microplastic concentration in 72 gizzard shad and 24 largemouth bass from two agricultural reservoirs in the midwestern U.S.A. with differing shoreline development. Microplastics were found in 100% of the fish, with 1-49 No. Fish −1 , independent of shoreline development. Bass had higher concentrations overall than shad. For bass, microplastics were more concentrated in the guts rather than gills, but the opposite was the case for shad, suggesting that feeding guild may influence where microplastics accumulate in fishes. The prevalence and concentrations reported here are greater than reported in marine systems and higher than reported in riverine studies. Our results underscore the ubiquitous distribution of microplastics and suggest that lake ecosystems in agricultural landscapes may be particularly susceptible to microplastic contamination.

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Microplastics ingestion by a common tropical freshwater fishing resource

Cited by 296 publications

References 47 publications

Microplastics in the gastrointestinal tracts of fish and the water from an urban prairie creek

Microplastics in the gastrointestinal tracts of fish and the water from an urban prairie creek

Microplastics in eviscerated flesh and excised organs of dried fish

Microplastic prevalence in two fish species in two U.S. reservoirs

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