Ecotoxicology最新文献_第10页

Combined effects of ocean acidification and copper exposure on the polyps of moon jellyfish Aurelia coerulea. 海洋酸化和铜暴露对月亮水母珊瑚虫的联合影响。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-17 DOI: 10.1007/s10646-025-02869-w

Lei Wang, Fanghan Wang, Yuanqing Ma

{"title":"Combined effects of ocean acidification and copper exposure on the polyps of moon jellyfish Aurelia coerulea.","authors":"Lei Wang, Fanghan Wang, Yuanqing Ma","doi":"10.1007/s10646-025-02869-w","DOIUrl":"10.1007/s10646-025-02869-w","url":null,"abstract":"Ocean acidification (OA) can interact with Copper (Cu) pollutants and threaten marine organisms and ecosystems. In this study, we assessed the effects of OA and Cu2+, alone and in combination, on the polyps of Aurelia coerulea, a common jellyfish renowned for its complex life cycle and frequent global blooms. The results revealed that ocean acidification and Cu2+ exposure significantly inhibited the activities of catalase, Ca2+-ATPase, acid phosphatase, and alkaline phosphatase in polyps, resulting in antioxidative stress effects and a significant increase in respiratory metabolism. In addition, the combination of ocean acidification and Cu2+ exposure caused severe tissue damage to polyps, thereby impeding their predation behavior and reducing their asexual reproduction rates. These two environmental stressors showed synergistic effects on the Ca2+-ATPase activity, predation rate, reproduction rate, and injury index of polyps. Therefore, reduced seawater pH and copper contamination adversely affect the physiology, growth, and development of A. coerulea polyps, which may affect the survival and population dynamics of wild populations.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"712-724"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143647642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential synergistic effects of microplastics and zinc oxide nanoparticles: biochemical and physiological analysis on Astacus leptodactylus. 微塑料和氧化锌纳米颗粒的潜在协同效应：对细趾虾的生化和生理分析。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-21 DOI: 10.1007/s10646-025-02872-1

Mahdi Banaee, Amir Zeidi, Amin Gholamhosseini, Reza Shakeri, Caterina Faggio, Cristiana Roberta Multisanti

{"title":"Potential synergistic effects of microplastics and zinc oxide nanoparticles: biochemical and physiological analysis on Astacus leptodactylus.","authors":"Mahdi Banaee, Amir Zeidi, Amin Gholamhosseini, Reza Shakeri, Caterina Faggio, Cristiana Roberta Multisanti","doi":"10.1007/s10646-025-02872-1","DOIUrl":"10.1007/s10646-025-02872-1","url":null,"abstract":"The present study aimed to evaluate the effects of microplastics (MPs) and Zinc Oxide nanoparticles (ZnO-NPs), both individually and in combination, on the crayfish, Astacus leptodactylus. A total of 360 crayfish were assigned to eight experimental groups, including control and treatment groups exposed to MPs (polyethylene, polystyrene, and polyvinyl chloride at 300 µg/L) and ZnO-NPs (5 µg/L), individually and combined. Biochemical analyses on the haemolymph revealed a significant increase in aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, gamma glutamic transpeptidase activities, and glucose and cholesterol levels in crayfish exposed to MPs and ZnO-NPs. In contrast, butyrylcholinesterase activity was significantly decreased in all treatments compared to the control. Lactate dehydrogenase activity increased significantly in crayfish exposed to ZnO-NPs, alone or combined with MPs. Furthermore, thiol groups, total antioxidant levels, and glutathione peroxidase, glutathione reductase, catalase, and superoxide dismutase were significantly decreased, while malondialdehyde levels were increased. The integrated biomarker response (IBR) and radar plots highlighted a cumulative oxidative stress response, suggesting potential synergistic or additive interactions between MPs and ZnO-NPs.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"769-778"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytotoxicity of seven iron-based materials to mung bean seedlings. 7种铁基材料对绿豆幼苗的毒性研究。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-18 DOI: 10.1007/s10646-025-02858-z

Fang Zuo, Wenjie Wang, Zhihang Shao, Yuhuan Sun, Fayuan Wang

{"title":"Phytotoxicity of seven iron-based materials to mung bean seedlings.","authors":"Fang Zuo, Wenjie Wang, Zhihang Shao, Yuhuan Sun, Fayuan Wang","doi":"10.1007/s10646-025-02858-z","DOIUrl":"10.1007/s10646-025-02858-z","url":null,"abstract":"Due to the widespread application of various iron-based materials in environmental remediation and agricultural production, it is of significance to assess their environmental risks. Here, seven iron-based materials, including ionic FeCl3, micro- and nano-sized magnetite (i.e., mFe3O4 and nFe3O4), micro- and nano-sized zero-valent iron (i.e., mZVI and nZVI), and nZVI modified by starch and activated carbon (i.e., S-nZVI and A-nZVI), were targeted to compare their phytotoxicity in mung bean grown in the soil with different doses (0, 300, 600, and 1000 mg/kg) for 40 days. S-nZVI and A-nZVI severely inhibited plant growth, decreasing shoot and root dry weights by 45.1-79.2 and 26.0-82.3%, respectively, but other materials showed no or minimal effects on plant growth. All the materials decreased chlorophyll content and photosynthesis performance, with more pronounced inhibition from A-nZVI and S-nZVI, especially at 1000 mg/kg. The activities of superoxide dismutase (SOD) and peroxide dismutase (POD) in leaves were stimulated by all the materials, among which S-nZVI enhanced SOD activity by 206.9% at 300 mg/kg and POD activity by 541.1% at 1000 mg/kg. In most cases, Fe accumulation in the roots was increased by all materials, particularly by S-nZVI and A-nZVI. Fe concentrations in roots and shoots exposed to 1000 mg/kg S-nZVI and A-nZVI were 2-3 times higher than those in the control treatments. The disturbance in the homeostasis of minerals (Zn, Mn, Cu, and Mg) was induced by all iron-based materials. To conclude, the phytotoxicity of iron-based materials was dependent on their type and dosage, and stabilization was crucial for the phytotoxicity and bioaccumulation potential of nZVI in plants.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"725-735"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143656560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mercury levels in two freshwater fishes from Panama's two largest lakes. 巴拿马两个最大湖泊中两种淡水鱼的汞含量。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-24 DOI: 10.1007/s10646-025-02874-z

Marisol P Valverde, Diana M T Sharpe, David G Buck, Mark E Torchin, Lauren J Chapman

{"title":"Mercury levels in two freshwater fishes from Panama's two largest lakes.","authors":"Marisol P Valverde, Diana M T Sharpe, David G Buck, Mark E Torchin, Lauren J Chapman","doi":"10.1007/s10646-025-02874-z","DOIUrl":"10.1007/s10646-025-02874-z","url":null,"abstract":"Mercury contamination is a global concern, yet addressing it in developing nations is particularly challenging given the scarcity of data. In 2015, along with many other countries, Panama ratified the Minamata Convention on Mercury- a global effort to tackle mercury contamination and mitigate the risks it poses to humans and the environment. However, there are currently no published data from Panama on mercury contamination in freshwater fishes nor its associated health risks to humans from fish consumption. Here, we quantify for the first time the total mercury (THg) concentrations in two predatory fish species in Panama's two largest lakes: Lake Gatun and Lake Bayano. Within Lake Gatun, the native predator Hoplias microlepis (\"pejeperro\") had significantly higher predicted mercury concentrations (341.77 ng/g wet weight for a fish of 25 cm in standard length) than the introduced Cichla monoculus (\"sargento\" or \"peacock bass\") (196.98 ng/g), and mercury concentrations increased with fish size for both species. H. microlepis from Lake Gatun also had significantly higher predicted THg concentrations than H. microlepis from Lake Bayano (168.37 ng/g). Mercury concentrations at the aquatic food web baseline did not differ between lakes, as shown by the primary consumer snails Pomacea sp. Additionally, using stable isotopes of nitrogen (δ15N), we found that mercury concentrations increased with trophic position in both lakes (resulting in positive and significant Trophic Magnification Slopes), suggesting mercury biomagnification. Based on these findings, we provide fish consumption guidelines for both lakes, using the U.S. EPA current reference dose for mercury exposure. These results provide critical data for Panama as it works towards meeting the objectives set under the Minamata Convention.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"779-791"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short- and medium-term effects of biodegradable microplastics (PLA and PHB) on earthworm development and reproduction. 可生物降解微塑料（PLA和PHB）对蚯蚓发育和繁殖的中短期影响。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-17 DOI: 10.1007/s10646-025-02868-x

David Gutiérrez-Rial, Aarón Lagoa, Iria Villar, Pilar Feijoo, Fuencisla Mariño, Josefina Garrido, Benedicto Soto, Salustiano Mato

{"title":"Short- and medium-term effects of biodegradable microplastics (PLA and PHB) on earthworm development and reproduction.","authors":"David Gutiérrez-Rial, Aarón Lagoa, Iria Villar, Pilar Feijoo, Fuencisla Mariño, Josefina Garrido, Benedicto Soto, Salustiano Mato","doi":"10.1007/s10646-025-02868-x","DOIUrl":"10.1007/s10646-025-02868-x","url":null,"abstract":"Microplastics derived from biobased and biodegradable materials will increase their presence in soils as their use becomes more widespread. Research into their effects on soil fauna will help to ensure a better understanding of their environmental impacts. The aim of this work was to study the effects on the development of the earthworm Eisenia andrei (ingestion capacity, survival, growth, cocoon, and hatchling production), earthworm lysosomal stability through the neutral red retention time (NRTT), and substrate enzymatic activity of dehydrogenase (DHA) and fluorescein diacetate-hydrolysing activity (FDA) in the presence of polylactic acid (PLA), polyhydroxybutyrate (PHB) and polyethylene (PE) microplastics in laboratory tests. Three different tests were designed, one feeding test of 4 days, and two medium-term tests with 49 and 112 days. The 4-day test and the 49-day growth test were carried out using OECD artificial soil, while in the 112-day growth test, vermicompost was used as the substrate. PLA and PHB particle ingestion was demonstrated. No concentration or polymer-dependent lysosomal damage or effects on earthworm growth were observed. However, reproductive effects, such as a decrease in cocoon production and the number of juveniles, were reported upon exposure to PE and PLA during medium-term assays. These findings indicated that the toxicity of PLA bioplastic exposure is comparable to that of conventional plastic PE concerning the negative effects on the reproductive efficiency of the detritivorous earthworm E. andrei.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"701-711"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12254054/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143647645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functional responses of tadpoles exposed to different concentrations of Roundup® herbicide. 不同浓度农达除草剂对蝌蚪功能的影响。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-04-24 DOI: 10.1007/s10646-025-02882-z

Gabriela Taiza de Souza, Carolina de Abreu Caberlon, Camila Fernanda Moser, Guendalina Turcato de Oliveira, Diego Anderson Dalmolin, Roseli Coelho Dos Santos, Alexandro Marques Tozetti

{"title":"Functional responses of tadpoles exposed to different concentrations of Roundup® herbicide.","authors":"Gabriela Taiza de Souza, Carolina de Abreu Caberlon, Camila Fernanda Moser, Guendalina Turcato de Oliveira, Diego Anderson Dalmolin, Roseli Coelho Dos Santos, Alexandro Marques Tozetti","doi":"10.1007/s10646-025-02882-z","DOIUrl":"10.1007/s10646-025-02882-z","url":null,"abstract":"Habitat loss and degradation are among the primary drivers of global biodiversity decline, mainly driven by agricultural expansion (leading to habitat loss) and the widespread use of pesticides (causing habitat degradation). Pesticides affect both aquatic and terrestrial organisms, as they run off from application sites into water bodies, reaching multiple ecosystems and species. Here, we evaluated the effects of Roundup®, a pesticide based on a Glyphosate and Polyoxyethyleneamine formula, on the functional morphological traits of Boana faber (Blacksmith Treefrog). Through a controlled laboratory experiment, we exposed 51 tadpoles to varying concentrations of Roundup® and analyzed 11 morphological characters associated with four critical functional traits: feeding, locomotion, gas exchange, and sensory perception. Our findings reveal that Roundup® exposure significantly alters tadpole functional morphology. Traits associated with locomotion and sensory perception exhibited the most substantial disruptions. Higher Roundup® concentrations reduced the functional space occupied by locomotor traits, suggesting decreased morphological plasticity and potentially compromised habitat exploration ability. Conversely, sensory traits exhibited expanded functional space, possibly reflecting compensatory plasticity or dysregulated phenotypic development induced by chemical stress. These shifts indicate potential impairments in foraging efficiency, predator evasion, and overall ecological performance. Given that the maximum Roundup® concentration used in this study (520 µg/L) mirrors levels found in Brazilian water bodies, the implications for wild populations are concerning. These findings underscore the urgent need for sustainable agricultural practices to mitigate the cascading effects of pesticide use on aquatic ecosystems.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"893-906"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive machine learning assessment of zebrafish behaviour and biochemical markers in response to caffeine exposure. 斑马鱼对咖啡因暴露的行为和生化标志物的综合机器学习评估。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-19 DOI: 10.1007/s10646-025-02873-0

Cláudia Teixeira, Sara Rodrigues, João Amorim, Bárbara S Diogo, Ivo Pinto, António Paulo Carvalho, Sara C Antunes, Luís Oliva Teles

{"title":"Comprehensive machine learning assessment of zebrafish behaviour and biochemical markers in response to caffeine exposure.","authors":"Cláudia Teixeira, Sara Rodrigues, João Amorim, Bárbara S Diogo, Ivo Pinto, António Paulo Carvalho, Sara C Antunes, Luís Oliva Teles","doi":"10.1007/s10646-025-02873-0","DOIUrl":"10.1007/s10646-025-02873-0","url":null,"abstract":"Environmental exposure to caffeine (CAF) poses potential risks to aquatic ecosystems, affecting non-target species. This study investigated the chronic effects of environmentally relevant CAF concentrations, ranging from 0.16-50 µg/L, on zebrafish behaviour. A Kohonen-type artificial neural network classified zebrafish behaviour into nine behavioural classes based on a set of movement descriptors (mean meander, mean velocity, instantaneous velocity, distance to centre point, mean angular velocity and instantaneous acceleration), while a comprehensive analysis integrated behavioural classes previously defined and biochemical markers of oxidative stress, lipid peroxidation, reserve energy content, energetic pathways, and neurotoxicity. The discriminant analysis demonstrated that behaviour descriptors and biomarkers individually explained 38% and 67% of data variation, respectively, while the combination resulted in 19 models with 100% correct diagnosis. One of the models (Model A) seemed to suit the best dose-response relationship, incorporating key biomarkers including superoxide dismutase, catalase, glutathione peroxidase activities, and behavioural characteristics such as movement distance and velocity. This suggested methodology offers a different approach to evaluating CAF's ecological impact, highlighting behavioural analysis as a valuable complement to traditional ecotoxicological assessments. This study provides a novel framework for understanding organism-level responses to environmental stressors (e.g., several anthropogenic compounds), utilising Mahalanobis distance as an integrative response index. This approach shows promise for broader application in assessing the impact of various aquatic contaminants on aquatic organisms (from bacteria to fish), potentially extending to pharmaceuticals, pesticides, and industrial pollutants.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"746-759"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12254161/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sub-chronic level FLX exposure and biomarker response in Labeo rohita. 亚慢性水平的FLX暴露和动物标志物反应。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-29 DOI: 10.1007/s10646-025-02881-0

M Sujitha, K Manimegalai

{"title":"Sub-chronic level FLX exposure and biomarker response in Labeo rohita.","authors":"M Sujitha, K Manimegalai","doi":"10.1007/s10646-025-02881-0","DOIUrl":"10.1007/s10646-025-02881-0","url":null,"abstract":"Selective serotonin reuptake inhibitors (SSRIs) are among the most widely prescribed psychotropic medications globally used to treat depression, anxiety disorders, and related mental health conditions. Among these, Fluoxetine (FLX), recognized by its brand name Prozac, is frequently used. SSRIs increase serotonin levels in the brain, inhibiting its reuptake to enhance mood and emotional stability. However, their widespread production, consumption, and eventual environmental release are raising concerns among aquatic toxicologists and environmental biologists due to their potential impact on ecosystems and human health. This study investigated the long-term (35-days) antioxidant responses in Labeo rohita fingerlings exposed to varying concentrations of FLX (1, 10, and 100 μg/L). Compared to control groups, the activity of superoxide dismutase (SOD) in the brain significantly decreased (P < 0.05) in FLX-treated fish, except at the highest (100 μg/L) concentration on the 35th day. Similarly, catalase (CAT) and glutathione S-transferase (GST) activity were significantly reduced (P < 0.05) across all treatments. Lipid peroxidation (LPO) levels were markedly elevated in FLX-treated fishes, signifying oxidative stress. Acetylcholinesterase activity in brain tissue decreased in FLX-treated groups. These findings provide critical baseline data for molecular toxicology, highlighting the potential effects of pharmaceutical pollutants on non-target aquatic organisms.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"818-829"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143742170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioaccumulation and maternal transfer of copper in the freshwater snail Planorbella pilsbryi. 淡水蜗牛皮氏planorella pilsbryi体内铜的生物积累和母体转移。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-04-03 DOI: 10.1007/s10646-025-02861-4

R K Osborne, R S Prosser

{"title":"Bioaccumulation and maternal transfer of copper in the freshwater snail Planorbella pilsbryi.","authors":"R K Osborne, R S Prosser","doi":"10.1007/s10646-025-02861-4","DOIUrl":"10.1007/s10646-025-02861-4","url":null,"abstract":"Exposure of parents to a contaminant can lead to the transfer of a fraction of the contaminant accumulated in the parental tissues to the developing embryos. This study assessed the rate of uptake and rate of depuration of the metal copper in mature adults of the freshwater pulmonated gastropod Planorbella pilsbryi to calculate a kinetic bioconcentration factor. The kinetic bioconcentration factor of copper in P. pilsbryi was 4.36 ± 0.14. The resultant time to 95% depuration was 25.72 days. The study also assessed the maternal transfer of copper from mature adults to their egg masses. An elevated concentration of copper was measured in egg masses laid by mature adult snails exposed to 27.3 µg/L of copper for 7 days compared to the concentration measured in egg masses from unexposed adults. The concentration of copper in egg masses laid by adults in the second 7-day exposure were greater than the concentration in egg masses laid in the first 7-day exposure. The concentration of copper in egg masses laid after the adult snails were transferred to clean water returned to the baseline concentrations observed in adult snails that were not exposed to copper. This study provides evidence that snails transfer a fraction of copper taken up in their tissues to their egg masses following exposure, but the transfer ceases when exposure to the adults is discontinued. This information is critical to designing the appropriate study to accurately assess the potential transgenerational effects of contaminants on freshwater gastropods.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"853-861"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143771682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pioneering investigation of long-term emamectin benzoate exposure on Labeo rohita: Insight to haemato-immuno-antioxidant biomarkers, histopathological alteration, and amino acid-fatty acid profiling. 对罗希塔Labeo长期暴露于甲维菌素苯甲酸盐的开创性研究：对血液-免疫-抗氧化生物标志物，组织病理学改变和氨基酸-脂肪酸谱的见解。

IF 2.4 4区环境科学与生态学

Ecotoxicology Pub Date : 2025-07-01 Epub Date: 2025-03-31 DOI: 10.1007/s10646-025-02877-w

Vikas Kumar, Himanshu Sekhar Swain, Basanta Kumar Das, Sankhajit Roy, Aurobinda Upadhyay, Mitesh Hiradas Ramteke

{"title":"Pioneering investigation of long-term emamectin benzoate exposure on Labeo rohita: Insight to haemato-immuno-antioxidant biomarkers, histopathological alteration, and amino acid-fatty acid profiling.","authors":"Vikas Kumar, Himanshu Sekhar Swain, Basanta Kumar Das, Sankhajit Roy, Aurobinda Upadhyay, Mitesh Hiradas Ramteke","doi":"10.1007/s10646-025-02877-w","DOIUrl":"10.1007/s10646-025-02877-w","url":null,"abstract":"Indiscriminate use of pesticides not only pollutes the environment but also produces detrimental impacts on non-target organisms. Emamectin benzoate (EMB) is an important pesticide used for pest control in both agriculture and veterinary medicine. However, aquatic animals are endangered by the continuous influx of EMB into water bodies. The present study examined the long-term impacts of EMB on the haemato-immuno-antioxidant biomarker pattern, histopathological alteration, and amino acid-fatty acid profiling of L. rohita exposed to EMB; 0 (control), 1.82 µg L-1 (EMB1), and 9.1 µg L-1 (EMB2) for 30 days. This is the first-ever study investigating amino acid and fatty acid profiles and histopathological alterations in L. rohita subjected to EMB. The results showed that EMB exposure significantly altered biomarker levels in a dose-dependent manner. The stress biomarkers levels (SOD, catalase, GST, AST, ALT, triglyceride, glucose, and cortisol) were increased, but the immune responses like serum albumin, globulin, IgM, C3, and C4 were reduced. Histopathological observation showed that EMB incited liver, gill and kidney damage. The reduction of most amino acids is probably due to the synthesis pathway inhibition of amino acids in EMB-exposed fish. The reduced ∑PUFA proportion in treated fish was due to the susceptibility of C20:5 and C22:6 to peroxidation by EMB. In the context of ecotoxicology risk assessment, the alteration in multiple biomarkers is an adaptive response of fish exposed to EMB and that could impose risks to the natural population subjected to food quality and safety.","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"830-844"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143751569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0