Ecotoxicology最新文献

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Evaluation of herbicide toxicity to Lemna minor L. and Azolla caroliniana Willd. 评估除草剂对 Lemna minor L. 和 Azolla caroliniana Willd.
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-03-01 Epub Date: 2024-11-23 DOI: 10.1007/s10646-024-02829-w
Bruna Ferrari Schedenffeldt, Bruno Barburgian Ramalho Siqueira, Rafaela Oliva da Silva, Patrícia Andrea Monquero
{"title":"Evaluation of herbicide toxicity to Lemna minor L. and Azolla caroliniana Willd.","authors":"Bruna Ferrari Schedenffeldt, Bruno Barburgian Ramalho Siqueira, Rafaela Oliva da Silva, Patrícia Andrea Monquero","doi":"10.1007/s10646-024-02829-w","DOIUrl":"10.1007/s10646-024-02829-w","url":null,"abstract":"<p><p>Long-residual herbicides can negatively impact aquatic ecosystems through surface runoff and leaching. This study evaluated the acute toxicity of indaziflam, sulfentrazone, clomazone, and tebuthiuron on Lemna minor and Azolla caroliniana. Experiments were conducted in the laboratory using a completely randomized design (CRD) with six concentrations of each herbicide across four replicates. The study assessed the concentration causing acute effects in 50% of the organisms (EC<sub>50</sub>), the effects on fresh weight (g), and the risk quotient (RQ). For L. minor, EC<sub>50</sub> values were 0.41, 0.73, 0.12, and 0.21 mg L⁻¹ for clomazone, sulfentrazone, indaziflam, and tebuthiuron, respectively; and for A. caroliniana, the values were 3.26, 0.51, 0.11, and 0.71 mg L⁻¹, respectively. All tested herbicides were classified as highly toxic to macrophyte species, except for clomazone, which was categorized as 'moderately toxic' for A. caroliniana. Moreover, these herbicides significantly reduced fresh weight even at the lowest concentrations.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"258-265"},"PeriodicalIF":2.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142695279","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
Contrasting behavioural responses to concurrent stressors in an aquatic snail: the importance of stress type and combination. 水生蜗牛对并发压力源的不同行为反应:压力类型和组合的重要性。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-03-01 Epub Date: 2024-11-20 DOI: 10.1007/s10646-024-02835-y
Álvaro Alonso, M C Llandres-Díez, P Cruces-Estepa
{"title":"Contrasting behavioural responses to concurrent stressors in an aquatic snail: the importance of stress type and combination.","authors":"Álvaro Alonso, M C Llandres-Díez, P Cruces-Estepa","doi":"10.1007/s10646-024-02835-y","DOIUrl":"10.1007/s10646-024-02835-y","url":null,"abstract":"<p><p>Behaviour is a fundamental parameter for understanding the animal fitness, serving as an indicator of exposure to stressors. In ecosystems, animals often face multiple stressors simultaneously. Their behavioural responses may vary when exposed to individual stressors, whilst synergistic, additive, or antagonistic effects can result from the interaction of multiple stressors. Therefore, it is imperative to conduct studies that take into account the common occurrence of multi-stress scenarios in aquatic ecosystems. We tested the effects of three sources of stress (acidity (A), toxicity with acetone (T) and conspecific chemical cues (S)) on the behaviour of the aquatic snail Potamopyrgus antipodarum (Tateidae, Mollusca). We evaluated the impact of each stressor, as well as in combinations of two or three stressors simultaneously. The highest time to initiate movement was shown by the animals of the low water pH (A) followed by those exposed to the combination of low water pH and acetone exposure (AT). The differences between the time to initiate movement of each treatment with control revealed a marked decrease in the differences for the snails from the conspecific chemical cues (S) and ST treatments, which mean a higher time to initiate movements. It is concluded that behaviour varied depending on the source and combination of stress. While an acid environment and conspecific signals had contrasting effects when applied separately, their simultaneous exposure resulted in no significant impact. This highlights the importance of considering the combined effects of multiple stressors when extrapolating laboratory results to real-world scenarios, where organisms are often exposed to more than one stressor at a time.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"248-257"},"PeriodicalIF":2.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675454","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
Picloram drift in Peltophorum dubium, a species native to the Brazilian Cerrado. Peltophorum dubium的Picloram漂移,一种原产于巴西塞拉多的物种。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-03-01 Epub Date: 2024-12-01 DOI: 10.1007/s10646-024-02841-0
José Ângeles Moreira de Oliveira, Leonardo David Tuffi Santos, Murilo Antônio Oliveira Ruas, Luan Mateus Silva Donato, Victor Augustus Vasconcelos de Oliveira, Yuri Silva Saraiva Guimarães, Richardson Fernandes de Souza, Rodinei Facco Pegoraro
{"title":"Picloram drift in Peltophorum dubium, a species native to the Brazilian Cerrado.","authors":"José Ângeles Moreira de Oliveira, Leonardo David Tuffi Santos, Murilo Antônio Oliveira Ruas, Luan Mateus Silva Donato, Victor Augustus Vasconcelos de Oliveira, Yuri Silva Saraiva Guimarães, Richardson Fernandes de Souza, Rodinei Facco Pegoraro","doi":"10.1007/s10646-024-02841-0","DOIUrl":"10.1007/s10646-024-02841-0","url":null,"abstract":"<p><p>Peltophorum dubium, a common tree in areas close to agricultural activity in the Brazilian Cerrado, is vulnerable to damage from the drift of picloram, an herbicide widely used in pastures and agriculture in Brazil. The aim was to evaluate the application of 0.0; 19.2; 38.4; 76.8; 153.6; 307.2 g e. a. ha<sup>-1</sup> of picloram, in simulated drift, on P. dubium, as well as its use as a bioindicator plant for herbicide contamination. The doses of picloram applied to the plants caused symptoms typical of the action of picloram on sensitive plants and led to the death of P. dubium at the highest doses tested. At its highest dose, picloram caused a 52.86% reduction in photosynthetic rate, 42.51% in transpiration rate, and 64.28% in stomatal conductance compared to the non-treated control. Picloram at a dose of 19.2 g e. a. ha<sup>-1</sup> caused a reduction in N content and utilization and reduced plant protein. Picloram drift causes severe damage to P. dubium, reinforcing the concern about the risks of contamination with the herbicide. The species acted as a bioindicator of picloram in the environment and could be used in biomonitoring herbicide contamination.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"317-331"},"PeriodicalIF":2.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142767504","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
Use of biomarkers in bullfrog tadpoles Aquarana catesbeiana (Shaw 1802) for ecotoxicological evaluation of Pirajibú River (São Paulo, Brazil). 利用牛蛙蝌蚪 Aquarana catesbeiana (Shaw 1802) 的生物标志物对皮拉吉布河(巴西圣保罗)进行生态毒理学评估。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-01-01 Epub Date: 2024-10-28 DOI: 10.1007/s10646-024-02821-4
Cleoni Dos Santos Carvalho, Fabio Henrique da Silva, João Victor Cassiel Ferraz, Gabriel Hiroshi Fujiwara, Luciana Camargo de Oliveira, Heidi Samantha Moraes Utsunomiya, Iolanda Cristina Silveira Duarte, Letícia Portugal do Nascimento
{"title":"Use of biomarkers in bullfrog tadpoles Aquarana catesbeiana (Shaw 1802) for ecotoxicological evaluation of Pirajibú River (São Paulo, Brazil).","authors":"Cleoni Dos Santos Carvalho, Fabio Henrique da Silva, João Victor Cassiel Ferraz, Gabriel Hiroshi Fujiwara, Luciana Camargo de Oliveira, Heidi Samantha Moraes Utsunomiya, Iolanda Cristina Silveira Duarte, Letícia Portugal do Nascimento","doi":"10.1007/s10646-024-02821-4","DOIUrl":"10.1007/s10646-024-02821-4","url":null,"abstract":"<p><p>This study focused on investigating the water quality in the Pirajibú River, a relevant water body that flows through the industrial zone of Sorocaba (São Paulo/Brazil). Due to the limitations of assessing water quality based solely on standard physicochemical tests, an ecotoxicological approach was used to assess biomarker changes in the liver of bullfrog tadpoles (Aquarana catesbeiana). The animals were divided into groups and exposed to water samples collected upstream and downstream of the industrial zone. After 96 h, the upstream group presented a decrease in the enzymatic activity of glutathione peroxidase (GPx) and superoxide dismutase (SOD) and an increase in the activity of catalase (CAT). For the downstream group, while a decreased activity was observed for SOD, an increase in CAT and glutathione S-transferase (GST) activities was noted. A decrease in lipid peroxidation (LPO) levels was observed in the downstream group, and increased carbonyl protein (PCO) levels in the upstream and downstream groups. Integrated Biomarker Response (IBR) revealed GSH and PCO as the most responsive biomarkers, despite the lack of differences noted between the groups. Regardless of whether the water quality standards of Pirajibú River were following Brazilian environmental legislation, the tadpoles presented high sensitivity when exposed to the water, even for a short period.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"143-155"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521367","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
Trace element contamination in three shorebird species migrating through Delaware Bay, New Jersey: arsenic, mercury and selenium are increasing. 迁徙经过新泽西州特拉华湾的三种海岸鸟类体内的微量元素污染:砷、汞和硒正在增加。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-01-01 Epub Date: 2024-10-29 DOI: 10.1007/s10646-024-02816-1
Joanna Burger, Stephanie Feigin
{"title":"Trace element contamination in three shorebird species migrating through Delaware Bay, New Jersey: arsenic, mercury and selenium are increasing.","authors":"Joanna Burger, Stephanie Feigin","doi":"10.1007/s10646-024-02816-1","DOIUrl":"10.1007/s10646-024-02816-1","url":null,"abstract":"<p><p>Many shorebird populations are declining, and contaminants may be partly contributing to the decline by interfering with feeding, migration, and breeding success. The goal of our study was to determine whether there was a temporal change in concentrations of trace elements of red knot (Calidris canutus rufa), sanderling (Calidris alba), and ruddy turnstone (Arenaria interpres) during spring migration in Delaware Bay, New Jersey, USA. We sampled blood to 1) determine levels of trace elements in 2019, 2) compare 2019 trace element levels with those from shorebirds in 2011-2012, and 3) examine variability in blood levels of trace elements among species. In 2019: 1) trace element levels were significantly different among species (except cadmium[Cd]), 2) Cd was lowest in all species, and arsenic (As) and selenium (Se) were highest, and 3) sanderlings had the highest levels of As and Se, and knots had the highest levels of chromium (Cr) and lead (Pb). Se was higher in these shorebirds than reported for other shorebirds from elsewhere. As, mercury (Hg), and Se increased significantly between 2011-2012 and 2019 in all three species. There were no significant temporal changes in Cd. Chromium (Cr) decreased in knots and sanderling. The temporal increases in As, Se, and Hg bear watching as they are toxic in vertebrates, and each can decrease the toxicity of the others. The data indicate that shorebirds can be bioindicators of changing trace element levels in estuaries, potentially providing early warning of increasing levels of As, Hg, and Se in the environment.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"89-101"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742890/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142544402","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
Carryover effects of tire wear particle leachate threaten the reproduction of a model zooplankton across multiple generations. 轮胎磨损颗粒沥滤液的携带效应威胁到一种模式浮游动物的多代繁殖。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-01-01 Epub Date: 2024-10-10 DOI: 10.1007/s10646-024-02809-0
Yanchao Chai, Haiqing Wang, Mengru Lv, Jiaxin Yang
{"title":"Carryover effects of tire wear particle leachate threaten the reproduction of a model zooplankton across multiple generations.","authors":"Yanchao Chai, Haiqing Wang, Mengru Lv, Jiaxin Yang","doi":"10.1007/s10646-024-02809-0","DOIUrl":"10.1007/s10646-024-02809-0","url":null,"abstract":"<p><p>The toxic additives that leach from tire wear particles (TWPs) cause mass die-offs in fish and impact zooplankton as secondary consumers in the aquatic food web. In addition to the direct impacts of TWP leachate on a single generation, there may be potential delayed carryover effects across multiple generations from parental exposure, which may amplify the adverse effects of the leachate on individual reproduction and, consequently, on the entire population. In this study, the single, multiple, and transgenerational effects of TWP leachate at various concentrations on the reproduction and lifespan of the rotifer Brachionus calyciflorus were investigated. The results indicated that the lifespan and reproductive output of rotifers exposed to TWP leachate (0-1500 mg/L) decreased as the concentration increased above 250 mg/L. There was a clear multigenerational effect of TWP leachate on rotifer reproduction. The inhibition rates were consistently greater at 500 mg/L than at 250 mg/L leachate. Although the reproduction of rotifers exposed to 250 mg/L TWP leachate increased in the first two generations (P and F1), it was inhibited in subsequent generations. The inhibitory effect of 500 mg/L TWP leachate persisted across all generations, leading to population extinction by the F4 generation. A significant transgenerational effect of TWP leachate was found on reproduction. The adverse impact of exposure to 250 mg/L leachate for fewer than three generations could be reversed when offspring were transferred to clean media. However, this recovery was not observed after continuous exposure for more than four generations. Exposure to high-dose TWP leachate also caused irreversible damage to reproduction. Therefore, TWP leachate can result in cascading toxicity on zooplankton populations through carryover and cumulative effects on reproduction.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"52-60"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460659","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
Relationship of mercury bioaccumulation with seasonality and feeding habits of fish species caught upstream and downstream of the Curuá-Una hydroelectric dam in the Brazilian Amazon. 巴西亚马逊库鲁阿-乌纳水电站大坝上下游鱼类物种的汞生物累积与季节性和摄食习惯的关系。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-01-01 Epub Date: 2024-10-19 DOI: 10.1007/s10646-024-02808-1
Brendson C Brito, José R P Peleja, Sergio Melo, Ynglea G de Freitas Goch, Andréa Pontes Viana
{"title":"Relationship of mercury bioaccumulation with seasonality and feeding habits of fish species caught upstream and downstream of the Curuá-Una hydroelectric dam in the Brazilian Amazon.","authors":"Brendson C Brito, José R P Peleja, Sergio Melo, Ynglea G de Freitas Goch, Andréa Pontes Viana","doi":"10.1007/s10646-024-02808-1","DOIUrl":"10.1007/s10646-024-02808-1","url":null,"abstract":"<p><p>Hydroelectric plants impact the dynamics of mercury accumulation and transfer to aquatic ecosystems and organisms. This study aimed to determine total mercury (THg) concentration in filtered water, aquatic macrophytes, and fish and assess the influence of fluvial regime (low-water, rising-water, and high-water) and the feeding habits of fish species caught upstream and downstream of the Curuá-Una hydroelectric dam in the Brazilian Amazon. THg levels were determined by cold-vapor atomic fluorescence spectrometry. THg concentration in filtered water was higher (5.3-11.2 ng L<sup>-1</sup>) during the low-water period. THg concentration in fish ranged from 0.075 to 1.160 µg g<sup>-1</sup> in specimens caught downstream and from 0.014 to 1.036 µg g<sup>-1</sup> in specimens caught upstream of the dam. The highest THg concentrations were detected in specimens of the piscivorous species Acestrorhynchus falcirostris (1.161 µg g<sup>-1</sup>) caught at downstream sites. There were significant correlations of THg concentration with the trophic level (Analysis of Variance; p ≤ 0.001) of fish species and fluvial regime (Analysis of Variance; p ≤ 0.001). The macrophyte Utricularia foliosa contained the highest THg levels in leaf tissues in the low-water period (71.4 µg g<sup>-1</sup>). It is concluded that THg concentration varies between fish trophic levels and fluvial regimes. Macrophytes contribute to enhancing mercury transfer and availability along the aquatic trophic chain.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"38-51"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460662","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
Toxicity effects of hexavalent chromium on hematological, biochemical and digestive enzyme profiles of Labeo rohita (Hamilton, 1822). 六价铬对 Labeo rohita(汉密尔顿,1822 年)血液学、生物化学和消化酶谱的毒性效应。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-01-01 Epub Date: 2024-10-21 DOI: 10.1007/s10646-024-02815-2
Archisman Ray, Debashri Mondal, Nabanita Chakraborty, Shreyosree Ganguly
{"title":"Toxicity effects of hexavalent chromium on hematological, biochemical and digestive enzyme profiles of Labeo rohita (Hamilton, 1822).","authors":"Archisman Ray, Debashri Mondal, Nabanita Chakraborty, Shreyosree Ganguly","doi":"10.1007/s10646-024-02815-2","DOIUrl":"10.1007/s10646-024-02815-2","url":null,"abstract":"<p><p>The study provides a descriptive understanding of the toxic effect of heavy metal chromium on the hematological, biochemical, and digestive enzyme profiles in the fingerlings of Labeo rohita. The 96-h LC<sub>50</sub> of hexavalent chromium was found to be 15.76 mg/L. Further, the toxicity study was conducted with four different sub-lethal concentrations of 96-h LC<sub>50</sub> viz. 1/40th, 1/20th, 1/10th, and 1/5th respectively. The blood samples from the control and treated groups exposed to different concentrations were examined for various physiological parameters. The obtained data showed that, with the increase in sub-lethal concentration, a significant decrease (p < 0.05) in red blood cell (RBCs), hemoglobin (Hb), and hematocrit (Hct) was observed, while total white blood cell (WBCs), mean corpuscular volume (MCV), and mean corpuscular hemoglobin (MCH) increased significantly (p < 0.05) in all the treatments. Fishes exposed to chromium for 30 days responded by becoming hyperglycemic, hyperproteineric, and hypoalbuminemia with a gradual rise in concentrations. Alteration in the intestinal digestive enzyme profiles was also observed after 30 days of study. The activity of protease (89.76%), and amylase (41.88%) decreased in the intestine with the highest concentration compared to the control. Conversely, compared to the control, the highest concentration resulted in an increase (146%) in lipase activity. Overall, this study has greatly enhanced our comprehension of the impact of chromium toxicity on various hematological, biochemical, and digestive enzyme parameters in Labeo rohita.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"76-88"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460663","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
Environmental realism in molecular ecotoxicology: key considerations to transition experimental data to ecologically relevant scenarios. 分子生态毒理学中的环境现实主义:将实验数据转换为生态相关情景的关键考虑因素。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-01-01 Epub Date: 2024-11-05 DOI: 10.1007/s10646-024-02827-y
Marco E Franco
{"title":"Environmental realism in molecular ecotoxicology: key considerations to transition experimental data to ecologically relevant scenarios.","authors":"Marco E Franco","doi":"10.1007/s10646-024-02827-y","DOIUrl":"10.1007/s10646-024-02827-y","url":null,"abstract":"<p><p>Molecular ecotoxicology facilitates the mechanistic understanding of chemical-organism interactions and the establishment of frameworks to link molecular events to adverse outcomes. However, the foundation of this sub-discipline must remain focused on the necessity to generate insight at levels of biological organization beyond the individual, namely the population, community, and ecosystem levels, and to strive towards ecological relevance. As planet Earth continues to experience unprecedented levels of chemical pollution, causing significant impact to the integrity and functionality of ecosystems, research efforts in molecular ecotoxicology must prioritize experimentation that quantitatively incorporates the influence of non-chemical stressors to enhance the predictability of chemical-driven effects at the population level and beyond. Here, perspectives on the challenge to transition experimental data to environmentally relevant scenarios are offered in an attempt to highlight the critical role of molecular ecotoxicology in protecting and supporting ecosystems threatened by chemical pollution.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"1-10"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142582459","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
Combined toxic effects of yessotoxin and polystyrene on the survival, reproduction, and population growth of rotifer Brachionus plicatilis at different temperatures. 叶索毒素和聚苯乙烯在不同温度下对轮虫Brachionus plicatilis的存活、繁殖和种群增长的联合毒性效应。
IF 2.4 4区 环境科学与生态学
Ecotoxicology Pub Date : 2025-01-01 Epub Date: 2024-10-24 DOI: 10.1007/s10646-024-02819-y
Ye Liang, Jun Yang, Zongyan Zhang, Yujing Xiao, Haifeng Gu
{"title":"Combined toxic effects of yessotoxin and polystyrene on the survival, reproduction, and population growth of rotifer Brachionus plicatilis at different temperatures.","authors":"Ye Liang, Jun Yang, Zongyan Zhang, Yujing Xiao, Haifeng Gu","doi":"10.1007/s10646-024-02819-y","DOIUrl":"10.1007/s10646-024-02819-y","url":null,"abstract":"<p><p>Yessotoxin (YTX) is a disulfated toxin produced by harmful dinoflagellates and causes risks to aquatic animals. Polystyrene (PS) microplastics could absorb toxins in seawaters but pose threats to organism growth. In this study, the combined toxic effects of YTX (0, 20, 50, and 100 µg L<sup>-1</sup>) and PS (0, 5, and 10 µg mL<sup>-1</sup>) on the survival, reproduction, and population growth of marine rotifer Brachionus plicatilis at 20 °C, 25 °C, and 30 °C were evaluated. Results indicated that the survival time (S), time to first batch of eggs (F<sub>t</sub>), total offspring per rotifer (O<sub>t</sub>), generational time (T<sub>0</sub>), net reproduction rate (R<sub>0</sub>), intrinsic growth rate (r<sub>m</sub>), and population growth rate (r) of rotifers were inhibited by YTX and PS at 25 °C and 30 °C. Low temperature (20 °C) improved the life-table parameters T<sub>0</sub>, R<sub>0</sub>, and r<sub>m</sub> at YTX concentrations less than 100 µg L<sup>-1</sup>. Temperature, YTX, and PS had interactive effects on rotifers' S, F<sub>t</sub>, O<sub>t</sub>, T<sub>0</sub>, R<sub>0</sub>, r<sub>m</sub>, and r. The combined negative effects of YTX and PS on rotifers' survival, reproduction, and population growth were significantly enhanced at 30 °C. These findings emphasized the importance of environmental temperature in studying the interactive effects of microplastics and toxins on the population growth of zooplankton in eutrophic seawaters.</p>","PeriodicalId":11497,"journal":{"name":"Ecotoxicology","volume":" ","pages":"112-126"},"PeriodicalIF":2.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142497103","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}
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