Microplastics in fishmeal: A threatening issue for sustainable aquaculture and human health

Mahamud, A.G.M. Sofi Uddin; Anu, Mithila Saha; Baroi, Artho; Datta, Anindita; Khan, Md Shihab Uddine; Rahman, M. Shajjadur; Tabassum, Tamanna; Tanwi, Jarin Tasnim; Rahman, Tanvir

doi:10.1016/j.aqrep.2022.101205

Cited by 19 publications

(6 citation statements)

References 116 publications

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“…As fish meal also constitutes the offal of fish, the risk to utilize parts of the fish that hold MP is quite high [49] [211]. E. encrasicolus is one of the main fish species that contribute to fish meal production, and studies have shown that these species carry MP content, when caught in the Indian Ocean.…”

Section: Microplastic Abundance In Shellfish Species In the Indian Oceanmentioning

confidence: 99%

Microplastic in the Marine Environment of the Indian Ocean

Thiemann¹

2023

JEP

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Microplastic has been found in all major waterbodies in the world. Many examples of ingestion of microplastic by marine organisms have been reported. This presence of microplastic in marine organisms gives it the possibility to penetrate the human food chain by increasing the chance of microplastic in seafood targeted for human consumption. Although it is known that parts of the Indian Ocean suffer from significant plastic pollution, much of the systematic research on the microplastic abundance in different regions of the Indian Ocean stems only from the last five years. This manuscript reviews the available literature of 2015-2022 on the presence of microplastics in commercially important fish species in the Indian Ocean. The literature data on microplastic content on beaches, in subtidal sediment, in the sediment from the ocean floor, and in surface water of different regions of the Indian Ocean is reviewed, also.

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Section: Microplastic Abundance In Shellfish Species In the Indian Oceanmentioning

confidence: 99%

Microplastic in the Marine Environment of the Indian Ocean

Thiemann¹

2023

JEP

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“…Similarly, in recirculating aquaculture systems (RAS), microplastics are likely to originate from plastic tanks, pipes, and filtration components. In addition, fish meal (a major component of fish feed) has been identified as a significant source of microplastic ingestion in farmed fish [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Microplastics in aquaculture - Potential impacts on inflammatory processes in Nile tilapia

König Kardgar,

Doyle,

Warwas

et al. 2024

Heliyon

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“…There is very recent evidence of microplastics in raw materials used to produce fish feed [33]. For example, Thiele and colleagues [34] found MP contamination in commercial samples of fishmeal, a product of bycatch or by-products of marine fisheries.…”

Section: Introductionmentioning

confidence: 99%

Microplastic Contamination in Commercial Insect Meal: A Valid Analytical Method to Detect It

Rimoldi,

Ponti,

Valsesia

et al. 2024

Preprint

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Background. Escalating global plastic production, expected to reach 34,000 million tons by 2050, poses a significant threat to human and environmental well-being, particularly in aquatic ecosystems. Microplastics (MP) and nanoplastics (NP), which originate from the degradation of plastics, are of concern due to their potential bioaccumulation and uptake of pollutants. This study addresses identification methods and focuses on insect meal, a raw material for aquaculture feed. Methods. By using different techniques, the study was able to detect MP and NP in insect meal samples. Chemical digestion with KOH at 60°C efficiently removed organic matter without affecting the synthetic polymer polyethylene (PE). Filtration, confocal Raman microscopy, SEM and TEM were used for comprehensive analysis and integrity tests on PE films were performed using Raman and FTIR spectroscopy. The results showed the presence of PE microplastic particles in the insect meal, which was confirmed by correlative Raman and SEM mapping on a positively charged surface. In addition, the increased resolution of the Raman microscope identified submicrometric PE NP (800 nm). Transmission electron microscopy (TEM) with energy dispersive X-ray spectroscopy (EDX) confirmed plastic-like structures in the insect meal, highlighting the presence of PE plastics characterized by irregular shapes and some agglomeration. The higher carbon concentration in the EDX analysis supported the plastic nature, which was also confirmed by Raman spectroscopy. Conclusions. The study provides a robust method for the detection of MP and NP in insect meal and provides valuable insight into the possible presence of plastics in insect-based aquafeeds. The combination of different analytical methods increases the reliability of the results and sets the stage for future investigations that could focus on the quantification of NP and the assessment of their potential environmental impact.

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Microplastics in fishmeal: A threatening issue for sustainable aquaculture and human health

Cited by 19 publications

References 116 publications

Microplastic in the Marine Environment of the Indian Ocean

Microplastic in the Marine Environment of the Indian Ocean

Microplastics in aquaculture - Potential impacts on inflammatory processes in Nile tilapia

Microplastic Contamination in Commercial Insect Meal: A Valid Analytical Method to Detect It

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