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Le Gué L, Savina E, Arhant M, Davies P, Dumergue N, Vincent B. Influence of knot strength on the mechanical performance of a biodegradable gillnet. Sci Rep 2024; 14:15450. [PMID: 38965403 PMCID: PMC11224365 DOI: 10.1038/s41598-024-66474-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024] Open
Abstract
Ghost fishing is a global issue that can be addressed using fishing gear materials that do not persist in the marine environment. However, for these alternatives to be widely adopted, they must meet the same mechanical specifications as current commercial materials while degrading without any negative impact. The objective of this study was to compare a conventional gillnet made of polyamide 6 (PA6) with an alternative made of poly(butylene succinate-co-adipate-co-terephthalate) (PBSAT) at three different scales: monofilament, knot, and net. While the PBSAT monofilament's strength was half that of the conventional PA6 net, knot and net losses were even more significant. This indicates a greater sensitivity of the material to the knot. Since the results between the knot and net scales were coherent, testing whole net panels is not necessary. Studying the curvature and the behaviour of the knot revealed its complex geometry and mechanical behaviour. Testing the weaver's knot is a good indicator for studying the relevance of an alternative to conventional fishing gear materials. This should be considered when developing biodegradable nets in order to reduce ghost fishing at sea.
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Affiliation(s)
- Louis Le Gué
- Ifremer, RDT Research and Technological Development, 29280, Plouzané, France.
- Institut Agro, IFREMER, INRAE, DECOD, 56325, Lorient, France.
| | - Esther Savina
- Section for Fisheries Technology, DTU Aqua, 9850, Hirtshals, Denmark
| | - Mael Arhant
- Ifremer, RDT Research and Technological Development, 29280, Plouzané, France
| | - Peter Davies
- Ifremer, RDT Research and Technological Development, 29280, Plouzané, France
| | - Nicolas Dumergue
- Ifremer, RDT Research and Technological Development, 29280, Plouzané, France
| | - Benoit Vincent
- Institut Agro, IFREMER, INRAE, DECOD, 56325, Lorient, France
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Pedersen AF, Bayen S, Liu L, Dietz R, Sonne C, Rosing-Asvid A, Ferguson SH, McKinney MA. Nontarget and suspect screening reveals the presence of multiple plastic-related compounds in polar bear, killer whale, narwhal and long-finned pilot whale blubber from East Greenland. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 357:124417. [PMID: 38909771 DOI: 10.1016/j.envpol.2024.124417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 06/05/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
The monitoring of legacy contaminants in sentinel northern marine mammals has revealed some of the highest concentrations globally. However, investigations into the presence of chemicals of emerging Arctic concern (CEACs) and other lesser-known chemicals are rarely conducted, if at all. Here, we used a nontarget/suspect approach to screen for thousands of different chemicals, including many CEACs and plastic-related compounds (PRCs) in blubber/adipose from killer whales (Orcinus orca), narwhals (Monodon monoceros), long-finned pilot whales (Globicephala melas), and polar bears (Ursus maritimus) in East Greenland. 138 compounds were tentatively identified mostly as PRCs, and four were confirmed using authentic standards: di(2-ethylhexyl) phthalate (DEHP), diethyl phthalate (DEP), di(2-propylheptyl) phthalate (DPHP), and one antioxidant (Irganox 1010). Three other PRCs, a nonylphenol isomer, 2,6-di-tert-butylphenol, and dioctyl sebacate, exhibited fragmentation patterns matching those in library databases. While phthalates were only above detection limits in some polar bear and narwhal, Irganox 1010, nonylphenol, and 2,6-di-tert-butylphenol were detected in >50% of all samples. This study represents the first application of a nontarget/suspect screening approach in Arctic cetaceans, leading to the identification of multiple PRCs in their blubber. Further nontarget analyses are warranted to comprehensively characterize the extent of CEAC and PRC contamination within Arctic marine food webs.
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Affiliation(s)
- Adam F Pedersen
- Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada.
| | - Stéphane Bayen
- Department of Food Science and Agricultural Chemistry, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Lan Liu
- Department of Food Science and Agricultural Chemistry, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Rune Dietz
- Department of Ecoscience, Arctic Research Centre, Aarhus University, Roskilde DK-4000, Denmark
| | - Christian Sonne
- Department of Ecoscience, Arctic Research Centre, Aarhus University, Roskilde DK-4000, Denmark
| | - Aqqalu Rosing-Asvid
- Department of Birds and Mammals, Greenland Institute of Natural Resources, Nuuk GL-3900, Greenland
| | - Steven H Ferguson
- Arctic Aquatic Research Division, Fisheries and Oceans Canada, Winnipeg, MB R3T 2N6, Canada
| | - Melissa A McKinney
- Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
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Gambardella C, Miroglio R, Prieto Amador M, Castelli F, Castellano L, Piazza V, Faimali M, Garaventa F. High concentrations of phthalates affect the early development of the sea urchin Paracentrotus lividus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116473. [PMID: 38781890 DOI: 10.1016/j.ecoenv.2024.116473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 04/29/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
The toxicity of three phthalates (PAEs) - butylbenzyl phthalate (BBP), diethyl phthalate (DEP), and di-(2-ethylhexyl) phthalate (DEHP) - was tested on the Mediterranean sea urchin Paracentrotus lividus. Fertilized eggs were exposed to environmental and high PAE concentrations for 72 h. The potential toxic effects on larval development and any morphological anomalies were then assessed to estimate PAEs impact. Environmental concentrations never affected development, while high concentrations induced toxic effects in larvae exposed to BBP (EC50: 2.9 ×103 µg/L) and DEHP (EC50: 3.72 ×103 µg/L). High concentrations caused skeletal anomalies, with a slight to moderate impact for DEP/DEHP and BBP, respectively. PAE toxicity was: BBP>DEHP>DEP. In conclusion, the three PAEs at environmental concentrations do not pose a risk to sea urchins. However, PAE concentrations should be further monitored in order not to constitute a concern to marine species, especially at their early developmental stages.
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Affiliation(s)
- Chiara Gambardella
- CNR-IAS, via de Marini 6, Genova 16149, Italy; National Biodiversity Future Center (NBFC) S.c.a.r.l., Piazza Marina 61 (c/o palazzo Steri), Palermo, Italy.
| | - Roberta Miroglio
- CNR-IAS, via de Marini 6, Genova 16149, Italy; National Biodiversity Future Center (NBFC) S.c.a.r.l., Piazza Marina 61 (c/o palazzo Steri), Palermo, Italy
| | | | | | - Laura Castellano
- Costa Edutainment SpA - Acquario di Genova, Area Porto Antico, Ponte Spinola, Genoa 16128, Italy
| | | | - Marco Faimali
- CNR-IAS, via de Marini 6, Genova 16149, Italy; National Biodiversity Future Center (NBFC) S.c.a.r.l., Piazza Marina 61 (c/o palazzo Steri), Palermo, Italy
| | - Francesca Garaventa
- CNR-IAS, via de Marini 6, Genova 16149, Italy; National Biodiversity Future Center (NBFC) S.c.a.r.l., Piazza Marina 61 (c/o palazzo Steri), Palermo, Italy
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Li M, Ivantsova E, Liang X, Martyniuk CJ. Neurotoxicity of Benzotriazole Ultraviolet Stabilizers in Teleost Fishes: A Review. TOXICS 2024; 12:125. [PMID: 38393220 PMCID: PMC10891865 DOI: 10.3390/toxics12020125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024]
Abstract
Plastic additives that maintain integrity have been extensively studied for potential toxicity to fish; however, chemicals that protect polymers from (artificial) UV degradation are less studied. Benzotriazole UV stabilizers (BUVSs) are the most widely used UV stabilizers in plastics and are often used in sunscreens, cosmetics, paint, and food packaging. BUVSs can negatively affect aquatic wildlife when released into the environment via plastic degradation. In this review, we summarize the distribution of BUVSs globally and discuss neurotoxicological endpoints measured in fish to understand how these plastic additives can affect the neurological health of teleost fishes. BUVSs have been detected in aquatic environments at concentrations ranging from 0.05 up to 99,200 ng/L. Studies show that BUVSs affect behavioral responses and acetylcholinesterase activity, indicators of neurotoxicity. Our computational analysis using transcriptome data suggests certain pathways associated with neurodegeneration are responsive to exposure to BUVSs, like "Complement Activation in Alzheimer's Disease". Based on our review, we identify some research needs for future investigations: (1) molecular studies in the central nervous system to define precise mechanisms of neurotoxicity; (2) a wider range of tests for assessing aberrant behaviors given that BUVSs can affect the activity of larval zebrafish; and (3) histopathology of the nervous system to accompany biochemical analyses. These data are expected to enhance understanding of the neurotoxicity potential of benzotriazoles and other plastic additives.
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Affiliation(s)
- Mengli Li
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China; (M.L.); (X.L.)
| | - Emma Ivantsova
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA;
| | - Xuefang Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China; (M.L.); (X.L.)
| | - Christopher J. Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA;
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Miralha A, Contins M, Carpenter LBT, Pinto RL, Marques Calderari MRC, Neves RAF. Leachates of weathering plastics from an urban sandy beach: Toxicity to sea urchin fertilization and early development. MARINE POLLUTION BULLETIN 2024; 199:115980. [PMID: 38171163 DOI: 10.1016/j.marpolbul.2023.115980] [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: 08/14/2023] [Revised: 12/16/2023] [Accepted: 12/23/2023] [Indexed: 01/05/2024]
Abstract
Plastic leachates have chemical and biological implications for marine environments. This study experimentally evaluated acute effects of weathering plastic leachates (0, 25, 50, 75 and 100 %) on fertilization and early development of the sea urchin Lytechinus variegatus. Fertilization, embryonic and larval development were drastically inhibited (~75 %) when gametes were exposed to intermediate and high leachate concentrations or delayed when exposed to the lowest concentration. Fertilization and first cleavage stages were highly affected by exposure to intermediate and high leachate concentrations. None of the cells incubated at concentrations from 50 % reached blastula stage, suggesting that embryonic development was the most sensitive stage. Abnormalities in embryos and larvae were observed in all leachate treatments. Chemical analysis detected high concentration of bisphenol A, which may induce these observed effects. Our results highlight the potential threats of plastic pollution to sea urchin populations, which may severely affect the structure and functioning of coastal ecosystems.
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Affiliation(s)
- Agatha Miralha
- Graduate Program in Neotropical Biodiversity (PPGBIO), Institute of Biosciences (IBIO), Federal University of the State of Rio de Janeiro (UNIRIO), Brazil; Research Group of Experimental and Applied Aquatic Ecology, Department of Ecology and Marine Resources, Institute of Biosciences (IBIO), Federal University of the State of Rio de Janeiro (UNIRIO), Brazil
| | - Mariana Contins
- Science and Culture Forum, Federal University of Rio de Janeiro (UFRJ), Brazil
| | - Letícia B T Carpenter
- Centre of Analysis Fernanda Coutinho, State University of Rio de Janeiro (UERJ), Brazil
| | - Rafael L Pinto
- Centre of Analysis Fernanda Coutinho, State University of Rio de Janeiro (UERJ), Brazil
| | | | - Raquel A F Neves
- Graduate Program in Neotropical Biodiversity (PPGBIO), Institute of Biosciences (IBIO), Federal University of the State of Rio de Janeiro (UNIRIO), Brazil; Research Group of Experimental and Applied Aquatic Ecology, Department of Ecology and Marine Resources, Institute of Biosciences (IBIO), Federal University of the State of Rio de Janeiro (UNIRIO), Brazil.
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Du B, Liang B, Pan Z, Zhang Y, Han X, Liu LY, Zeng L. Prevalence of Novel and Traditional Synthetic Phenolic Antioxidants in Baby Food from China: A Dominant Pathway for Infant Exposure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:6119-6128. [PMID: 37017371 DOI: 10.1021/acs.est.3c00079] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Synthetic phenolic antioxidants (SPAs) are a group of ubiquitous contaminants with multiple toxicities. However, current knowledge on the occurrence of SPAs in baby food and associated infant exposure is lacking. Herein, we analyzed three categories of baby food from China: infant formula, cereal, and puree, for a broad suite of 11 traditional and 19 novel SPAs. In addition to 11 traditional SPAs, up to 13 novel SPAs were detected in the baby food samples. The median concentrations of novel SPAs for infant formula, cereal, and puree were 604, 218, and 24.1 ng/g, respectively, surpassing those of traditional SPAs (53.4, 62.1, and 10.0 ng/g). The prevalent SPAs in the samples were butylated hydroxytoluene, 2,4-di-tert-butylphenol, pentaerythritol tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] (AO 1010), and octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate (AO 1076). Source analysis indicated that the prevalence of these four SPAs in baby food was associated with contamination of packaging materials, mechanical processing, or raw ingredients. Migration experiments demonstrated that contamination of plastic packaging constituted an important source. Exposure assessment suggested that there may be no appreciable health risk posed by the SPAs in baby food. Even so, baby food consumption was still a dominant pathway for infant exposure to SPAs, with a higher contribution than breast milk consumption, dust ingestion, dermal dust absorption, and air inhalation, which requires special attention.
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Affiliation(s)
- Bibai Du
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Jinan University, Guangzhou 511443, China
| | - Bowen Liang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Jinan University, Guangzhou 511443, China
| | - Zibin Pan
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Jinan University, Guangzhou 511443, China
| | - Yun Zhang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Jinan University, Guangzhou 511443, China
| | - Xu Han
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Jinan University, Guangzhou 511443, China
| | - Liang-Ying Liu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Jinan University, Guangzhou 511443, China
| | - Lixi Zeng
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Jinan University, Guangzhou 511443, China
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