Abundant plankton-sized microplastic particles in shelf waters of the northern Gulf of Mexico

Mauro, Rosana Di; Kupchik, Matthew J.; Benfield, Mark C.

doi:10.1016/j.envpol.2017.07.030

Cited by 157 publications

(55 citation statements)

References 58 publications

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“…So, the large microplastics that close to their prey may be co-captured by carnivorous fishes. The finding of Di Mauro et al (2017) supported these results that the size of microplastics partially or completely overlapped with zooplankton, suggesting the potential of mistaken for natural prey. Daphnia magna as carnivorous prey ingested plastic microbeads at size of 63-75 µm (Canniff and Hoang 2018) and long fibers around 300 µm (Jemec et al 2016).…”

Section: Size Of Ingested Microplasticssupporting

confidence: 70%

The presence of microplastics in the digestive tract of commercial fishes off Pantai Indah Kapuk coast, Jakarta, Indonesia

Hastuti¹,

Lumbanbatu

Wardiatno

2019

Biodiversitas

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Abstract. Hastuti AR, Lumbanbatu DTF, Wardiatno Y. 2019. The presence of microplastics in the digestive tract of commercial fishes off Pantai Indah Kapuk coast, Jakarta, Indonesia. Biodiversitas 20: 1233-1242. Microplastics in fishes have been reported in many studies due to their threat to marine fishes and human health. But only a few data exist on commercial fish for human consumption in Indonesia. This study revealed the presence of microplastics in the digestive tract of 9 commercial species collected from six sites along the Pantai Indah Kapuk coast. Ingested microplastics were identified using gut content analysis. Microplastic particles were counted and categorized by type, color, and size. 169 of 174 (97.13%) of examined fish had microplastics. A total of 2063 microplastic particles were collected with the average number of particles per individual of 12.21 ± 9.76. The highest number (20.0 ± 8.0 particles individual-1) was found in Sardinella fimbriata and the lowest one (4.9 ± 4.7 particles individual-1) was found in Oreochromis mossambicus. Majority of ingested particles were fibers (89.63%), followed by fragments (6.24%), films (4.13%) and no pellets were observed. In terms of color, the most abundant were transparent particles (79.20%), followed by blue (7.03%), red (3.54%), black (2.86%), green (2.71%), and others which were found in low number. The highest number of fibers by size was <20-100 µm (55.03%), films were 100 - 1000 µm (33.93%), and fragments were <100 µm (25.25%). Microplastics ingested per individual in each species were not correlated to total body length, total body weight, digestive tract length, digestive content weight, mouth height, and mouth length.

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Section: Size Of Ingested Microplasticssupporting

confidence: 70%

The presence of microplastics in the digestive tract of commercial fishes off Pantai Indah Kapuk coast, Jakarta, Indonesia

Hastuti¹,

Lumbanbatu

Wardiatno

2019

Biodiversitas

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“…Hence, a standard lower limit is required. Mauro et al (2017) described the shapes of secondary microplastics as either irregular or fibres. Irregulars were irregularly shaped microplastic items with sharp or rounded edges, whereas fibres were thread-like microplastic items.…”

Section: Classification Of Microplasticmentioning

confidence: 99%

Worldwide distribution and abundance of microplastic: How dire is the situation?

et al. 2018

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The widespread occurrence of microplastic has invaded the environment to an extent that it appears to be present throughout the globe. This review investigated the global abundance and distribution of microplastics in marine and freshwater ecosystems. Furthermore, the issues and challenges have been addressed for better findings in microplastics studies. Findings revealed that the accumulation of microplastics varies geographically, with locations, hydrodynamic conditions, environmental pressure, and time. From this review, it is crucial that proper regulations are proposed and implemented in order to reduce the occurrence of microplastics in the aquatic environment. Without appropriate law and regulations, microplastic pollution will eventually threaten human livelihood.

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“…Thus, MPs are a potential and poorly understood threat to oyster populations and nearby human communities, like those along the Gulf Coast, where oyster farming is a vital part of the economy. Moreover, the levels of MPs in the northern Gulf of Mexico (nGoM) are among the highest reported globally, both on beaches [ 16 ] and in the water, where recent surveys along the Louisiana coast measured as much as 150,000 MPs/m 3 [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Microplastic Pollution at Oyster Reefs and Other Coastal Sites in the Mississippi Sound, USA: Impacts of Freshwater Inflows from Flooding

Scircle

Cizdziel

Tisinger

et al. 2020

Toxics

116

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Much of the seafood that humans consume comes from estuaries and coastal areas where microplastics (MPs) accumulate, due in part to continual input and degradation of plastic litter from rivers and runoff. As filter feeders, oysters (Crassostrea virginica) are especially vulnerable to MP pollution. In this study, we assessed MP pollution in water at oyster reefs along the Mississippi Gulf Coast when: (1) historic flooding of the Mississippi River caused the Bonnet Carré Spillway to remain open for a record period of time causing major freshwater intrusion to the area and deleterious impacts on the species and (2) the spillway was closed, and normal salinity conditions resumed. Microplastics (~25 µm–5 mm) were isolated using a single-pot method, preparing samples in the same vessel (Mason jars) used for their collection right up until the MPs were transferred onto filters for analyses. The MPs were quantified using Nile Red fluorescence detection and identified using laser direct infrared (LDIR) analysis. Concentrations ranged from ~12 to 381 particles/L and tended to decrease at sites impacted by major freshwater intrusion. With the spillway open, average MP concentrations were positively correlated with salinity (r = 0.87, p = 0.05) for sites with three or more samples examined. However, the dilution effect on MP abundances was temporary, and oyster yields suffered from the extended periods of lower salinity. There were no significant changes in the relative distribution of MPs during freshwater intrusions; most of the MPs (>50%) were in the lower size fraction (~25–90 µm) and consisted mostly of fragments (~84%), followed by fibers (~11%) and beads (~5%). The most prevalent plastic was polyester, followed by acrylates/polyurethanes, polyamide, polypropylene, polyethylene, and polyacetal. Overall, this work provides much-needed empirical data on the abundances, morphologies, and types of MPs that oysters are exposed to in the Mississippi Sound, although how much of these MPs are ingested and their impacts on the organisms deserves further scrutiny. This paper is believed to be the first major application of LDIR to the analysis of MPs in natural waters.

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Abundant plankton-sized microplastic particles in shelf waters of the northern Gulf of Mexico

Cited by 157 publications

References 58 publications

The presence of microplastics in the digestive tract of commercial fishes off Pantai Indah Kapuk coast, Jakarta, Indonesia

The presence of microplastics in the digestive tract of commercial fishes off Pantai Indah Kapuk coast, Jakarta, Indonesia

Worldwide distribution and abundance of microplastic: How dire is the situation?

Occurrence of Microplastic Pollution at Oyster Reefs and Other Coastal Sites in the Mississippi Sound, USA: Impacts of Freshwater Inflows from Flooding

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