Special Issue "Monitor the Quality of Freshwater Ecosystems"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Aquatic Systems—Quality and Contamination".

Deadline for manuscript submissions: 31 August 2020.

Special Issue Editor

Assoc. Prof. Natividade Vieira
Website
Guest Editor
Faculdade de Ciências and CiiMAR - Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Matosinhos 4450-208, Portugal
Interests: water quality; macroinvetebrates; ecosystem services; eutrophication

Special Issue Information

Dear Collogues,

Currently, it is recurrent to be in the presence of microplastics, because they are along the biosphere, in different ecosystems, affecting both the abiotic and the biotic part. Throughout our research we have verified the presence of microplastics in the water column in the sediment and in different organisms. To support what was previously mentioned, we proposed to verify the influence of microplastics on the phytoplankton community and water quality. We did this study in a reservoir in the north of Portugal. Surface and bottom water samples were taken for both physicochemical and biological parameters. The phytoplankton community (density and diversity) and the quality and quantity of existing microplastics were analyzed.  The results showed that among the phytoplankton community, cyanobacteria, diatoms and chlorophytes showed an excellent level of adhesion to the different microplastics found in the aquatic system. We also verified that there was a direct relationship between the presence of microplastics and the concentration of chlorophyll "a", which can be deduced that cause changes in the primary productivity of the aquatic system. Given what we have found, several investigations will be relevant to avoid the decrease of phytoplankton diversity and primary productivity of aquatic systems.

We encourage all the researchers working in this field to send us their manuscripts with the latest advances in this area.

Assoc. Prof. Natividade Vieira
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • water quality
  • microplastics
  • phytoplankton

Published Papers (1 paper)

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Research

Open AccessArticle
Multi-Residue Screening of Pesticides in Aquaculture Waters through Ultra-High-Performance Liquid Chromatography-Q/Orbitrap Mass Spectrometry
Water 2020, 12(5), 1238; https://doi.org/10.3390/w12051238 - 26 Apr 2020
Abstract
Pesticide residues in foodstuffs can lead to several undesirable effects. A simple and high-throughput targeted screening method analyzing multi-residue pesticide in aquaculture water based on ultra-high-performance liquid chromatography-Q/Orbitrap mass spectrometry (UHPLC-Q/Orbi MS) was developed and validated. In this technique, the peaks of the [...] Read more.
Pesticide residues in foodstuffs can lead to several undesirable effects. A simple and high-throughput targeted screening method analyzing multi-residue pesticide in aquaculture water based on ultra-high-performance liquid chromatography-Q/Orbitrap mass spectrometry (UHPLC-Q/Orbi MS) was developed and validated. In this technique, the peaks of the compound using precursor ions were recorded by the full scan, which was used for rough quantitative analysis with single point matrix matched calibration. The qualitative identification was performed following the stringent confirmation criteria with fragment ions, retention time, and an isotopic pattern. Additionally, solid-phase extraction with an HLB (Hydrophilic/Lipophilic Balanced) column was selected to enrich and separate target pesticides from water. The screening detection limit of 33 compounds are less than 2 ng·L−1, while 26 compounds range from 2 ng·L−1 to 10 ng·L−1, 19 compounds are at the range of 10–200 ng·L−1, and the other two compounds are 200 ng·L−1 and 1000 ng·L−1. Most of the recovery results were found to be between 60~130%. Finally, the method was successfully applied to the analysis of pesticide residues in 30 water samples from aquaculture environment in Shanghai, indicating its applicability in pesticide screening for environmental monitoring. Full article
(This article belongs to the Special Issue Monitor the Quality of Freshwater Ecosystems)
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