Interactions between microplastics and benthic biofilms in fluvial ecosystems: Knowledge gaps and future trends

IF 1.7 4区 环境科学与生态学 Q3 ECOLOGY Freshwater Science Pub Date : 2022-09-01 DOI:10.1086/721472
H. Guasch, S. Bernal, D. Bruno, B. C. Almroth, J. Cochero, Natàlia Corcoll, Delfina Cornejo, E. Gacia, A. Kroll, I. Lavoie, J. Ledesma, A. Lupon, H. Margenat, S. Morin, Enrique Navarro, M. Ribot, T. Riis, Mechthild Schmitt‐Jansen, A. Tlili, E. Martí
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引用次数: 6

Abstract

Plastics, especially microplastics (<5 mm in length), are anthropogenic polymer particles that have been detected in almost all environments. Microplastics are extremely persistent pollutants and act as long-lasting reactive surfaces for additives, organic matter, and toxic substances. Biofilms are microbial assemblages that act as a sink for particulate matter, including microplastics. They are ubiquitous in freshwater ecosystems and provide key services that promote biodiversity and help sustain ecosystem function. Here, we provide a conceptual framework to describe the transient storage of microplastics in fluvial biofilm and develop hypotheses to help explain how microplastics and biofilms interact in fluvial ecosystems. We identify lines of future research that need to be addressed to better manage microplastics and biofilms, including how the sorption and desorption of environmental contaminants in microplastics affect biofilms and how microbial exchange between microplastics and the biofilm matrix affects biofilm characteristics like antibiotic resistance, speciation, biodiversity, species composition, and function. We also address the uptake mechanisms of microplastics by consumers and their propagation through the food web.
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河流生态系统中微塑料与底栖生物膜之间的相互作用:知识差距和未来趋势
塑料,尤其是微塑料(长度<5毫米),是几乎在所有环境中都能检测到的人为聚合物颗粒。微塑料是一种极为持久的污染物,是添加剂、有机物和有毒物质的持久反应表面。生物膜是一种微生物组合,充当包括微塑料在内的颗粒物的汇。它们在淡水生态系统中无处不在,并提供促进生物多样性和帮助维持生态系统功能的关键服务。在这里,我们提供了一个概念框架来描述微塑料在河流生物膜中的瞬时储存,并提出了一些假设来帮助解释微塑料和生物膜在河流生态系统中是如何相互作用的。我们确定了未来需要解决的研究方向,以更好地管理微塑料和生物膜,包括微塑料中环境污染物的吸附和解吸如何影响生物膜,以及微塑料与生物膜基质之间的微生物交换如何影响生物被膜的特性,如抗生素耐药性、物种形成、生物多样性、物种组成,和功能。我们还讨论了消费者对微塑料的吸收机制及其通过食品网的传播。
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来源期刊
Freshwater Science
Freshwater Science ECOLOGY-MARINE & FRESHWATER BIOLOGY
CiteScore
4.10
自引率
0.00%
发文量
49
审稿时长
6-12 weeks
期刊介绍: Freshwater Science (FWS) publishes articles that advance understanding and environmental stewardship of all types of inland aquatic ecosystems (lakes, rivers, streams, reservoirs, subterranean, and estuaries) and ecosystems at the interface between aquatic and terrestrial habitats (wetlands, riparian areas, and floodplains). The journal regularly features papers on a wide range of topics, including physical, chemical, and biological properties of lentic and lotic habitats; ecosystem processes; structure and dynamics of populations, communities, and ecosystems; ecology, systematics, and genetics of freshwater organisms, from bacteria to vertebrates; linkages between freshwater and other ecosystems and between freshwater ecology and other aquatic sciences; bioassessment, conservation, and restoration; environmental management; and new or novel methods for basic or applied research.
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