Microplastic contamination in commercial fish species in southern coastal region of India

Thilagam, Harikrishnan; Janardhanam, Madhuvandhi; Sivakumar, Priya; Sivakumar, Rekha; Rajamanickam, Krishnamurthy; Raman, Thiagarajan; Thangavelu, Muthukumar; Govarthanan, Muthusamy; Gopalakrishnan, Subramaniam

doi:10.1016/j.chemosphere.2022.137486

Cited by 32 publications

(5 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is clear that inadequately managed litter in the region has significant adverse effects on coastal biodiversity. While many previous studies have quantified the impact of plastic litter on marine wildlife in Indian waters mainly associated with ingestion and entanglement (e.g., Nisanth and Kumar, 2019;Harikrishnan et al, 2023;Kannan et al, 2023b), this is the first documentation of marine litter acting as a vector for species dispersal in Indian waters. Our results indicate that floating plastic litter represents a habitat for a diverse array of marine biota, including invasive species.…”

Section: Discussionmentioning

confidence: 89%

Increasing Risk of Invasions by Organisms on Marine Debris in the Southeast Coast of India

Gunasekaran¹,

Mghili

Martino

et al. 2023

Preprint

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 89%

Increasing Risk of Invasions by Organisms on Marine Debris in the Southeast Coast of India

Gunasekaran¹,

Mghili

Martino

et al. 2023

Preprint

View full text Add to dashboard Cite

“…Research indicates that micro plastics can cause physical harm to fish tissues, affect feeding behaviours, and alter energy allocation for vital processes. Additionally, the bioavailability of microplastics and associated pollutants raises questions about their potential to accumulate up the food chain, eventually affecting human health through seafood consumption [2][3][4]. The presence of micro plastics in aquatic environments is undeniable, stemming from both primary and secondary sources.…”

Section: Introductionmentioning

confidence: 99%

Microplastic Contamination in Indian Mackerel (Rastrelliger kanagurta) and Finletted Mackerel (Megalaspis cordyla): Exploring Occurrence and Variability in Skin and Gill Tissues

Athiramol P. S.,

Thomas,

Jacob

2024

UPJOZ

View full text Add to dashboard Cite

Two marine fish species: Indian mackerel (Rastrelliger kanagurta) and finletted mackerel (Megalaspis cordyla), were collected from a local fish market near Thiruvalla in Pathanamthitta district, Kerala. Various types of microplastics (such as films, fibres, fragments, and lines) were identified using visual analysis conducted with the aid of light microscopy. This study unveiled a concentration (23%) of microplastics in gill tissues (Rastrelliger kanagurta) when compared to the skin (30%) In fish Rastrelliger kanagurta), indicating different pathways of uptake. Megalaspis cordyla had a greater percentage of microplastics in the skin (25%) than in the gills (22%); also indicating different pathways. There was an abundance of microplastics in the form of film at (25%) than in flake, granules, foam, fibre etc. which all stood at 10%, 10%, 10% and 20% abundance, respectively. Notably, Indian mackerels were found to harbour a more significant microplastic load than finletted mackerels, highlighting the existence of inter-species variations in contamination levels. To confirm the presence of polymers, the identified microplastics underwent Fourier-transform infrared (FTIR) spectroscopy analysis, a method that verified the molecular composition of micro plastics by analysing their infrared absorption spectra. Overall, these findings shed light on the prevalence of microplastic pollution in aquatic ecosystems and underscore the necessity for comprehensive strategies to mitigate its far-reaching repercussions.

show abstract

“…Before recently, MPs were considered an environmental pollutant, but they are now widely recognized as a potential food contaminant (Garrido Gamarro et al, 2020). MP contamination has been recorded in commercially critical marine organisms such as fish (Kumar et al, 2018;Harikrishnan et al, 2023), shrimp (Daniel et al, 2020), and mollusks (Patterson et al, 2021) in India. Mistakenly ingestion of MPs by crabs can cause oxidative stress, induce phagocytosis of hemocytes, variability in embryonic development rates, a decrease in feeding efficiency, mutations in immune-related genes, a decrease in metabolic rate, minimize the retention of egg clutches, protein degradation, alter gill function, and ultimately lead to mortality (Horn et al, 2019;D'Costa, 2022).…”

Section: Introductionmentioning

confidence: 99%

Ingestion and polymeric risk assessment of microplastic contamination in commercially important brachyuran crab Portunus sanguinolentus

Rabari,

Patel,

Ali

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

Microplastic (MP) in seafood is a growing area of food safety. In the present study, MP contamination in the commercially important crab Portunus sanguinolentus was assessed. A total of 300 crab specimens were collected from three principal fishing harbors of Gujarat. The collected specimens were analyzed for MPs isolation using a previously published protocol. The specimens were dissected, and organs such as the gut and gills were placed separately in the beaker. The organic tissues were digested using 10% KOH. After the digestion, flotation and filtration processes were carried out for the extraction of MPs. The physical (shape, size, and color) and chemical characterization of MPs were performed. The average abundance of MP was recorded as 0.67 ± 0.62 MPs/g. The pollution indices revealed very high contamination and fell under class IV (Jakhau) and V risk categories (Okha and Veraval). Microfibers were found dominantly. Blue and black-colored MPs with 1–2 mm sizes were recorded dominantly. Polyethylene, polyethylene tetraphene, polyurethane, polystyrene, and polypropylene were identified as polymer compositions of MPs. Concludingly, the present study gives an insight into the MP in an important crab species P. sanguinolentus, which can be useful to design further investigations on the toxicity of MPs in seafood.

show abstract

Microplastic contamination in commercial fish species in southern coastal region of India

Cited by 32 publications

References 49 publications

Increasing Risk of Invasions by Organisms on Marine Debris in the Southeast Coast of India

Increasing Risk of Invasions by Organisms on Marine Debris in the Southeast Coast of India

Microplastic Contamination in Indian Mackerel (Rastrelliger kanagurta) and Finletted Mackerel (Megalaspis cordyla): Exploring Occurrence and Variability in Skin and Gill Tissues

Ingestion and polymeric risk assessment of microplastic contamination in commercially important brachyuran crab Portunus sanguinolentus

Contact Info

Product

Resources

About