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Bin-Jumah MN. Are anticoagulant drugs ecotoxic for meiobenthic nematodes from Saudi Arabia? First data on taxon/functional diversity and computational evidences. MARINE POLLUTION BULLETIN 2024; 200:116029. [PMID: 38262212 DOI: 10.1016/j.marpolbul.2024.116029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 01/25/2024]
Abstract
Community-level effects of anticoagulants have little been studied in the laboratory. In the current study, the different effects of Warfarin and Tinzaparin, individually or in combination, on meiofauna were investigated for the first time using two concentrations (5 and 25 mg·l-1) of Warfarin (W1 and W2) and Tinzaparin (T1 and T2) for 30 days. The results obtained highlighted the highest tolerance of nematodes and amphipods toward the two anticoagulants tested. Moreover, nematode abundance and taxonomic diversity decreased directly after exposure to T2 and T2W1 because of the high mortality of diatom feeders and their replacement by non-selective deposit feeders (case of Tinzaparin) or omnivores-carnivores (case of Warfarin). The relative taxon/functional similarity between controls and mixtures T1W1 and T2W2 recommends that the toxicity of Tinzaparin can be attenuated by Warfarin. Finally, the computational study of Warfarin supports its potential ecotoxicity since it satisfactorily bound and interacted with GLD-3 and SDP macromolecules.
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Affiliation(s)
- May Nasser Bin-Jumah
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, 84428, Riyadh 11671, Saudi Arabia.
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Justino JT, Demetrio GR, Neres PF, Meneses D, Pinto TK. A functional perspective of nematode assemblages as proxy of quality in tropical estuarine tidal flats. MARINE ENVIRONMENTAL RESEARCH 2023; 186:105922. [PMID: 36812839 DOI: 10.1016/j.marenvres.2023.105922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 12/07/2022] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Functional aspects of biological communities influence ecosystem processes and it is urgent to understand how human disturbances affect functional diversity and ecosystem functions and services. Our purpose was to address the use of different functional metrics of nematode assemblages to evaluate the ecological status of tropical estuaries subjected to different human activities, aiming to advance and improve the knowledge about the usefulness of functional attributes as indicators of environmental quality. Three approaches were compared: functional diversity indexes, single trait, and multi traits using the Biological Traits Analysis. The RLQ + fourth-corner combined method was used to identify relationships among functional traits, inorganic nutrients, and metals concentrations. Lower values of FDiv, FSpe, and FOri indicate a convergence of functions, characterizing impacted conditions. A dominant set of traits was related to disturbance, mainly inorganic nutrient enrichment. All the approaches allowed for the detection of disturbed conditions, however, multi traits was the most sensitive one.
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Aydi A, Ghannem S, Nasri A, Hessine R, Mezni A. Evaluation of heavy metals contamination and pollution indices levels in surface sediments of the Bizerte coastal line, Tunisia. MARINE POLLUTION BULLETIN 2022; 184:114171. [PMID: 36182784 DOI: 10.1016/j.marpolbul.2022.114171] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Heavy metal concentrations in surface sediments collected from 17 stations samples in Bizerte coastal line were determined in order to evaluate the contamination status in the region. Heavy metal concentrations (mg/kg) of Bizerte coast line followed the decreasing trend of Fe > Pb > Zn > Mn > Cu > Cr > Ni > Co > Cd. The pollution degree of the surface sediment collected from 17 samples station in Bizerte coast line by heavy metals was evaluated on the basis of pollution indices (EF, Igeo, CF, PLI and CD). Results of Igeo, EF, CF, PLI and DC demonstrated that pollution levels of Pb and Cd were moderate, which should require more attentiveness as main pollution factors. However, no pollution was found for Zn, Cu, Ni, Cr, Co and Mn. Hierarchical cluster analysis was used to identify the influence of anthropogenic activities on the surface sediment.
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Affiliation(s)
- Abdelwaheb Aydi
- Department of Earth Sciences, Faculty Science of Bizerte, University of Carthage, Jarzouna 7021, Bizerte, Tunisia.
| | - Samir Ghannem
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
| | - Ahmed Nasri
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
| | - Rania Hessine
- Department of Earth Sciences, Faculty Science of Bizerte, University of Carthage, Jarzouna 7021, Bizerte, Tunisia
| | - Amine Mezni
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
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Jin Q, Tao D, Lu Y, Sun J, Lam CH, Su G, He Y. New insight on occurrence of liquid crystal monomers: A class of emerging e-waste pollutants in municipal landfill leachate. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127146. [PMID: 34536849 DOI: 10.1016/j.jhazmat.2021.127146] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/23/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
Liquid crystal monomers (LCMs) have been proposed as a class of emerging organic pollutants, which were recently detected in indoor dust and sediment samples collected near electronic devices recycling facilities. However, there is a knowledge gap for analytical method, occurrence, and distribution of LCMs in aqueous sample. Herein, a robust method was developed to determine 38 target LCMs in landfill leachate. A combined ultrasonic enhanced liquid-liquid extraction, saponification and silica/florisil packed column purification method achieved recoveries of 76.9~127.1%, 84.5~114.6% and 81.3~104.6% at spiking levels of 2 ng, 10 ng and 50 ng in leachate, respectively. The developed method was validated through determination of target LCMs in leachate samples collected from municipal landfills in Hong Kong (HK) and Shenzhen (SZ), China. There were 23 and 20 LCMs detected in the HK (ΣLCMs=1120 ng/L) and SZ (ΣLCMs=409 ng/L) sample, respectively, with 6 LCMs newly detected in the environment. This study provided the first evidence suggesting that landfill leachate might be a potential sink of LCMs emitted from e-waste. Future study is urged to investigate the potential migration of LCMs from landfill leachate as a point source, and their occurrence, distribution, fate, and ecotoxicological risk in aquatic environments on regional and global scales.
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Affiliation(s)
- Qianqian Jin
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China
| | - Danyang Tao
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Yichun Lu
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China
| | - Jiaji Sun
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China
| | - Chun Ho Lam
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China
| | - Guanyong Su
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
| | - Yuhe He
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China.
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Hannachi A, Nasri A, Allouche M, Aydi A, Mezni A, D'Agostino F, Avellone G, Gambi C, Beyrem H, Mahmoudi E. Diuron environmental levels effects on marine nematodes: Assessment of ecological indices, taxonomic diversity, and functional traits. CHEMOSPHERE 2022; 287:132262. [PMID: 34543897 DOI: 10.1016/j.chemosphere.2021.132262] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/11/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Coastal marine systems are the most sensitive zones to emerging pollutants. The present study aims to investigate the effect of Diuron on the meiofaunal assemblages, collected from the Bizerte channel (Tunisia). Microcosm experiments were set up using four increasing Diuron concentrations [D1 (10 ng g-1 dry weight (DW)), D2 (50 ng g-1 DW), D3 (250 ng g-1 DW) and (1250 ng g-1 DW)] compared to non-contaminated sediments (controls) and all plots were incubated for 30 days. Our results show that Diuron-supplemented sediments provoked the significant decrease of meiofaunal abundance as well as a change in nematodes' diversity and structure composition. All univariate indices, as well as the cumulative k-dominance, were lower in the Diuron than the control plot. Additionally, the ordination of treatments according to the two-dimensional nMDS plots analysis showed a clear structural separation of the Diuron treated replicates from the controls based on the functional groups lists. These current data emphasize the utility of the use of biological traits in the detection of disturbances in the aquatic biotope.
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Affiliation(s)
- Amel Hannachi
- University of Carthage, Faculty of Sciences of Bizerte, LR01ES14 Laboratory of Biomonitoring of the Environment, 7021, Zarzouna, Tunisia
| | - Ahmed Nasri
- University of Carthage, Faculty of Sciences of Bizerte, LR01ES14 Laboratory of Biomonitoring of the Environment, 7021, Zarzouna, Tunisia.
| | - Mohamed Allouche
- University of Carthage, Faculty of Sciences of Bizerte, LR01ES14 Laboratory of Biomonitoring of the Environment, 7021, Zarzouna, Tunisia
| | - Abdelwaheb Aydi
- Department of Earth Sciences, Faculty of Science of Bizerte, Carthage University, Jarzouna, 7021, Bizerte, Tunisia
| | - Amine Mezni
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Fabio D'Agostino
- Institute for the Study of Anthropogenic Impacts and Sustainability in the Marine Environment of Council National of Research (CNR-IAS), and University of Palermo (STEBICEF), Italy
| | - Giuseppe Avellone
- Institute for the Study of Anthropogenic Impacts and Sustainability in the Marine Environment of Council National of Research (CNR-IAS), and University of Palermo (STEBICEF), Italy
| | - Crsitina Gambi
- Department of Life and Environmental Science, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Hamouda Beyrem
- University of Carthage, Faculty of Sciences of Bizerte, LR01ES14 Laboratory of Biomonitoring of the Environment, 7021, Zarzouna, Tunisia
| | - Ezzeddine Mahmoudi
- University of Carthage, Faculty of Sciences of Bizerte, LR01ES14 Laboratory of Biomonitoring of the Environment, 7021, Zarzouna, Tunisia
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