Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality

Plastic pollution is an increasing environmental problem, but a comprehensive understanding of its effect in the environment is still missing. The wide variety of size, shape, and polymer composition of plastics impedes an adequate risk assessment. We investigated the effect of differently sized pol...

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Autores principales:	Claudia Drago, Guntram Weithoff
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	microplastics population growth rate polystyrene polyamide silica beads fitness response Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/ae43169c64df4b668258a59f286d83b7
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spelling	oai:doaj.org-article:ae43169c64df4b668258a59f286d83b72021-11-25T19:08:17ZVariable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality10.3390/toxics91103052305-6304https://doaj.org/article/ae43169c64df4b668258a59f286d83b72021-11-01T00:00:00Zhttps://www.mdpi.com/2305-6304/9/11/305https://doaj.org/toc/2305-6304Plastic pollution is an increasing environmental problem, but a comprehensive understanding of its effect in the environment is still missing. The wide variety of size, shape, and polymer composition of plastics impedes an adequate risk assessment. We investigated the effect of differently sized polystyrene beads (1-, 3-, 6-µm; PS) and polyamide fragments (5–25 µm, PA) and non-plastics items such as silica beads (3-µm, SiO<sub>2</sub>) on the population growth, reproduction (egg ratio), and survival of two common aquatic micro invertebrates: the rotifer species <i>Brachionus calyciflorus</i> and <i>Brachionus fernandoi</i>. The MPs were combined with food quantity, limiting and saturating food concentration, and with food of different quality. We found variable fitness responses with a significant effect of 3-µm PS on the population growth rate in both rotifer species with respect to food quantity. An interaction between the food quality and the MPs treatments was found in the reproduction of <i>B. calyciflorus</i>. PA and SiO<sub>2</sub> beads had no effect on fitness response. This study provides further evidence of the indirect effect of MPs in planktonic rotifers and the importance of testing different environmental conditions that could influence the effect of MPs.Claudia DragoGuntram WeithoffMDPI AGarticlemicroplasticspopulation growth ratepolystyrenepolyamidesilica beadsfitness responseChemical technologyTP1-1185ENToxics, Vol 9, Iss 305, p 305 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	microplastics population growth rate polystyrene polyamide silica beads fitness response Chemical technology TP1-1185
spellingShingle	microplastics population growth rate polystyrene polyamide silica beads fitness response Chemical technology TP1-1185 Claudia Drago Guntram Weithoff Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality
description	Plastic pollution is an increasing environmental problem, but a comprehensive understanding of its effect in the environment is still missing. The wide variety of size, shape, and polymer composition of plastics impedes an adequate risk assessment. We investigated the effect of differently sized polystyrene beads (1-, 3-, 6-µm; PS) and polyamide fragments (5–25 µm, PA) and non-plastics items such as silica beads (3-µm, SiO<sub>2</sub>) on the population growth, reproduction (egg ratio), and survival of two common aquatic micro invertebrates: the rotifer species <i>Brachionus calyciflorus</i> and <i>Brachionus fernandoi</i>. The MPs were combined with food quantity, limiting and saturating food concentration, and with food of different quality. We found variable fitness responses with a significant effect of 3-µm PS on the population growth rate in both rotifer species with respect to food quantity. An interaction between the food quality and the MPs treatments was found in the reproduction of <i>B. calyciflorus</i>. PA and SiO<sub>2</sub> beads had no effect on fitness response. This study provides further evidence of the indirect effect of MPs in planktonic rotifers and the importance of testing different environmental conditions that could influence the effect of MPs.
format	article
author	Claudia Drago Guntram Weithoff
author_facet	Claudia Drago Guntram Weithoff
author_sort	Claudia Drago
title	Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality
title_short	Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality
title_full	Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality
title_fullStr	Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality
title_full_unstemmed	Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality
title_sort	variable fitness response of two rotifer species exposed to microplastics particles: the role of food quantity and quality
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ae43169c64df4b668258a59f286d83b7
work_keys_str_mv	AT claudiadrago variablefitnessresponseoftworotiferspeciesexposedtomicroplasticsparticlestheroleoffoodquantityandquality AT guntramweithoff variablefitnessresponseoftworotiferspeciesexposedtomicroplasticsparticlestheroleoffoodquantityandquality
_version_	1718410236282273792

Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality

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