Ingestion of small-sized and irregularly shaped polyethylene microplastics affect Chironomus riparius life-history traits.

08:00 EDT 3rd April 2019 | BioPortfolio

Summary of "Ingestion of small-sized and irregularly shaped polyethylene microplastics affect Chironomus riparius life-history traits."

Microplastics (MPs) are emerging contaminants of freshwater ecosystems. Once in aquatic systems, most of these plastic particles undergo processes of fragmentation, biofouling, and sedimentation, resulting in increased concentrations of smaller sized and irregularly-shaped particles in the sediment. High levels of MPs in freshwater sediments can denote a potential threat to benthic and sediment-dwelling organisms such as dipteran larvae. This study evaluates the ecotoxicological effect of three pools of irregularly-shaped polyethylene (PE) microplastics (pools containing 90% of the particles within 32-63 μm (size-class A), 63-250 μm (size-class B) and 125-500 μm (size-class C)), with concentrations ranging from 1.25 to 20 g Kg sediment, on the dipteran Chironomus riparius life-history traits. After ten days of exposure, larvae ingested PE particles typically in the 32-63 μm range, even when 90% of the particles possessed higher size (i.e., in size-classes B and C) and the larvae mandible allowed the ingestion of such bigger-sized particles. Thus, the number of ingested particles was higher in size-class A, followed by B and C, and led to a significant reduction with similar magnitude on larval growth (Lowest Observed Effect Concentrations (LOEC) = 2.5 g Kg sediment DW) and a significant delay on imagoes emergence (e.g., LOEC = 1.5 g Kg sediment DW for females). The results from this study show that the ingestion and persistence of small-sized polyethylene microplastics caused significant impairments on life-history traits of C. riparius. Considering their role on freshwater food-webs and the potential persistence of small-sized PE particles in their larval gut, these results also point for the potential adverse effects of small-sized microplastics at the community and ecosystem level.


Journal Details

This article was published in the following journal.

Name: The Science of the total environment
ISSN: 1879-1026
Pages: 862-868


DeepDyve research library

PubMed Articles [11656 Associated PubMed Articles listed on BioPortfolio]

Estimating microplastic-bound intake of hydrophobic organic chemicals by fish using measured desorption rates to artificial gut fluid.

One of the most important concerns about marine microplastics is their role in delivery of chemical contaminants to biota. The contribution of microplastic ingestion to the overall uptake of five hydr...

A simple and efficient method for separation of low-density polyethylene films into different micro-sized groups for laboratory investigation.

Microplastics are abundant in both aquatic and terrestrial environments. While they have received much recent attention because of their effects on ecosystems, their true impact on natural environment...

Nanoplastic Ingestion Enhances Toxicity of Persistent Organic Pollutants (POPs) in the Monogonont Rotifer Brachionus koreanus via Multixenobiotic Resistance (MXR) Disruption.

Among the various materials found inside microplastic pollution, nano-sized microplastics are of particular concern due to difficulties in quantification and detection; moreover, they are predicted to...

Distribution characteristics of microplastics in the seawater and sediment: A case study in Jiaozhou Bay, China.

As a newly identified form of pollutant in the ocean, microplastics are receiving more and more attention from researchers. In order to evaluate the potential impact of microplastics, it is important ...

Transcriptional effects of polyethylene microplastics ingestion in developing zebrafish (Danio rerio).

Over the last few decades, plastic waste has become an increasing environmental concern as it accumulates in every environment on our planet. Though traditionally seen as a macroscopic problem (i.e., ...

Clinical Trials [5778 Associated Clinical Trials listed on BioPortfolio]

Split-dose Versus Single-dose Polyethylene Glycol Regimen for Capsule Endoscopy

To compare the small bowel cleanliness for wireless capsule endoscopy using two different Polyethylene Glycol administration schedules (before the wireless capsule endoscopy ingestion ver...

C-shaped Root Canal Prevalence and Configurations in Egyptians

The aim of this study is to investigate the prevalence and configuration of C-shaped root canal of mandibular first and second molars among members of an Egyptian sub-population using cone...

Ingestion of Simethicone After Capsule Ingestion and Its Impact on Quality of Video Capsule Endoscopy- a Pilot Study

Wireless video capsule endoscopy (VCE) is a non-invasive technology that looks into small intestine and gives images of its lumen as the wireless capsule passes through it. It is used wide...

Vitamin E-Diffused Highly Cross-Linked Polyethylene Liner

Vitamin E incorporated highly cross linked polyethylene (E-XLPE) was developed to increase oxidative resistance of highly cross-linked polyethylene (XLPE) without affecting mechanical prop...

Polyethylene Glycol Versus Low Volume Solutions Prior to Colonoscopy

Study evaluates the efficacy and tolerability of low volume preparations compared with conventional 4L polyethylene glycol prior to colonoscopy

Medical and Biotech [MESH] Definitions

A vinyl polymer made from ethylene. It can be branched or linear. Branched or low-density polyethylene is tough and pliable but not to the same degree as linear polyethylene. Linear or high-density polyethylene has a greater hardness and tensile strength. Polyethylene is used in a variety of products, including implants and prostheses.

Nanometer-sized, hollow, spherically-shaped objects that can be utilized to encapsulate small amounts of pharmaceuticals, enzymes, or other catalysts (Glossary of Biotechnology and Nanobiotechnology, 4th ed).

An irregularly shaped venous space in the dura mater at either side of the sphenoid bone.

One of a pair of irregularly shaped quadrilateral bones situated between the FRONTAL BONE and OCCIPITAL BONE, which together form the sides of the CRANIUM.

One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS.

Quick Search


DeepDyve research library

Relevant Topic

Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...

Searches Linking to this Article