The acute neurotoxicity of inorganic mercury in Mactra chinensis philippi
Aquat Toxicol. 2024 Mar 12;270:106896. doi: 10.1016/j.aquatox.2024.106896. Online ahead of print.ABSTRACTInorganic mercury (IHg) is hazardous to marine organisms especially resulting in neurotoxicity, bivalves are sensitive to pollutants as "ocean sentinel", but data on the neurotoxicity of IHg in bivalves are sparse. So we chosed M. chinensis philippi with typical neural structures in bivalves to investigate the neurotoxicity of IHg, which could be helpful to understand the specificity of neural regulation and the response characteristics of bivalves. After acute exposed to IHg (HgCl2) for 24 h, the metabolites of ganglio...
Source: Aquatic Toxicology - March 15, 2024 Category: Toxicology Authors: Bangguo Ma Xiaoli Zhao Xiaoning Zhang Bowen Yang Zimin Cai Zihan Xing Mingzhe Xu Liuya Mi Jianning Zhang Lei Wang Yancui Zhao Xiaoli Liu Source Type: research
Interindividual behavioural variation in response to elevated CO < sub > 2 < /sub > predicts mRNA transcript abundance of genes related to acid-base regulation in medaka (Oryzias latipes)
We examined whether interindividual variation in behavioural responses to CO2 could predict how a teleost fish would respond to elevated CO2 for multiple phenotypic and molecular traits. To this end, we first quantified behavioural responses of individuals exposed to acute elevated CO2, and used these to assign individuals as either high or low responders relative to the population mean. Subsequently, we exposed both high and low responders to elevated CO2 for 6 weeks and quantified the effect on body condition, behaviour, and mRNA transcript responses of gill and liver genes associated with relevant physiological processe...
Source: Aquatic Toxicology - March 13, 2024 Category: Toxicology Authors: Jenna L Fleet Theresa E Mackey Jennifer D Jeffrey Sara V Good Kenneth M Jeffries Caleb T Hasler Source Type: research
Interindividual behavioural variation in response to elevated CO < sub > 2 < /sub > predicts mRNA transcript abundance of genes related to acid-base regulation in medaka (Oryzias latipes)
We examined whether interindividual variation in behavioural responses to CO2 could predict how a teleost fish would respond to elevated CO2 for multiple phenotypic and molecular traits. To this end, we first quantified behavioural responses of individuals exposed to acute elevated CO2, and used these to assign individuals as either high or low responders relative to the population mean. Subsequently, we exposed both high and low responders to elevated CO2 for 6 weeks and quantified the effect on body condition, behaviour, and mRNA transcript responses of gill and liver genes associated with relevant physiological processe...
Source: Aquatic Toxicology - March 13, 2024 Category: Toxicology Authors: Jenna L Fleet Theresa E Mackey Jennifer D Jeffrey Sara V Good Kenneth M Jeffries Caleb T Hasler Source Type: research
Interindividual behavioural variation in response to elevated CO < sub > 2 < /sub > predicts mRNA transcript abundance of genes related to acid-base regulation in medaka (Oryzias latipes)
We examined whether interindividual variation in behavioural responses to CO2 could predict how a teleost fish would respond to elevated CO2 for multiple phenotypic and molecular traits. To this end, we first quantified behavioural responses of individuals exposed to acute elevated CO2, and used these to assign individuals as either high or low responders relative to the population mean. Subsequently, we exposed both high and low responders to elevated CO2 for 6 weeks and quantified the effect on body condition, behaviour, and mRNA transcript responses of gill and liver genes associated with relevant physiological processe...
Source: Aquatic Toxicology - March 13, 2024 Category: Toxicology Authors: Jenna L Fleet Theresa E Mackey Jennifer D Jeffrey Sara V Good Kenneth M Jeffries Caleb T Hasler Source Type: research
Tolerance of the Australian halophyte, beaded samphire, Sarcocornia quinqueflora, to Pb and Zn under glasshouse conditions: Evaluating metal uptake and partitioning, photosynthetic performance, biomass, and growth
Aquat Toxicol. 2024 Mar 9;270:106887. doi: 10.1016/j.aquatox.2024.106887. Online ahead of print.ABSTRACTSaltmarsh sediments are susceptible to accumulation of excessive concentrations of anthropogenically elevated metals such as lead (Pb) and zinc (Zn). The resident salt tolerant plants of saltmarsh ecosystems form the basal underpinning of these ecosystems. As such, metal-associated adverse impacts on their physiology can have detrimental flow-on effects at individual, population, and community levels. The present study assessed the accumulation and partitioning of ecologically relevant concentrations of Pb, Zn, and their...
Source: Aquatic Toxicology - March 10, 2024 Category: Toxicology Authors: Rebecca A L Voigt Geoff R MacFarlane Source Type: research
Tolerance of the Australian halophyte, beaded samphire, Sarcocornia quinqueflora, to Pb and Zn under glasshouse conditions: Evaluating metal uptake and partitioning, photosynthetic performance, biomass, and growth
Aquat Toxicol. 2024 Mar 9;270:106887. doi: 10.1016/j.aquatox.2024.106887. Online ahead of print.ABSTRACTSaltmarsh sediments are susceptible to accumulation of excessive concentrations of anthropogenically elevated metals such as lead (Pb) and zinc (Zn). The resident salt tolerant plants of saltmarsh ecosystems form the basal underpinning of these ecosystems. As such, metal-associated adverse impacts on their physiology can have detrimental flow-on effects at individual, population, and community levels. The present study assessed the accumulation and partitioning of ecologically relevant concentrations of Pb, Zn, and their...
Source: Aquatic Toxicology - March 10, 2024 Category: Toxicology Authors: Rebecca A L Voigt Geoff R MacFarlane Source Type: research
Tolerance of the Australian halophyte, beaded samphire, Sarcocornia quinqueflora, to Pb and Zn under glasshouse conditions: Evaluating metal uptake and partitioning, photosynthetic performance, biomass, and growth
Aquat Toxicol. 2024 Mar 9;270:106887. doi: 10.1016/j.aquatox.2024.106887. Online ahead of print.ABSTRACTSaltmarsh sediments are susceptible to accumulation of excessive concentrations of anthropogenically elevated metals such as lead (Pb) and zinc (Zn). The resident salt tolerant plants of saltmarsh ecosystems form the basal underpinning of these ecosystems. As such, metal-associated adverse impacts on their physiology can have detrimental flow-on effects at individual, population, and community levels. The present study assessed the accumulation and partitioning of ecologically relevant concentrations of Pb, Zn, and their...
Source: Aquatic Toxicology - March 10, 2024 Category: Toxicology Authors: Rebecca A L Voigt Geoff R MacFarlane Source Type: research
Understanding boron toxicity in aquatic plants (Salvinia natans and Lemna minor) in the presence and absence of EDTA
The objective of this study is to assess the toxicity of boron in aquatic plants and explore the impact of EDTA presence on the resulting toxic responses. Floating watermoss Salvinia natans and duckweed Lemna minor were exposed to concentrations ranging from 5 to 100 mg/L for 7 days and 1 to 60 mg/L for 3 days, respectively. Growth and photosynthetic activity parameters were investigated in the presence and absence of EDTA. Growth inhibitions in both aquatic plants were observed in a concentration-dependent manner, irrespective of the presence or absence of EDTA. For instance, based on the specific growth rate (leaves cove...
Source: Aquatic Toxicology - March 8, 2024 Category: Toxicology Authors: Rongxue Cui Jin Il Kwak Youn-Joo An Source Type: research
Toxic effects of triclosan on hepatic and intestinal lipid accumulation in zebrafish via regulation of m6A-RNA methylation
Aquat Toxicol. 2024 Mar 2;269:106884. doi: 10.1016/j.aquatox.2024.106884. Online ahead of print.ABSTRACTTriclosan (TCS), recognized as an endocrine disruptor, has raised significant concerns due to its widespread use and potential health risks. To explore the impact of TCS on lipid metabolism, both larval and adult zebrafish were subjected to acute and chronic exposure to TCS. Through analyzes of biochemical and physiological markers, as well as Oil Red O (ORO) and hematoxylin and eosin (H&E) staining, our investigation revealed that TCS exposure induced hepatic and intestinal lipid accumulation in larval and adult zeb...
Source: Aquatic Toxicology - March 8, 2024 Category: Toxicology Authors: Jinyun Li Lu Fang Miaocui Xi Anyu Ni Qiuhui Qian Zejun Wang Huili Wang Jin Yan Source Type: research
Understanding boron toxicity in aquatic plants (Salvinia natans and Lemna minor) in the presence and absence of EDTA
The objective of this study is to assess the toxicity of boron in aquatic plants and explore the impact of EDTA presence on the resulting toxic responses. Floating watermoss Salvinia natans and duckweed Lemna minor were exposed to concentrations ranging from 5 to 100 mg/L for 7 days and 1 to 60 mg/L for 3 days, respectively. Growth and photosynthetic activity parameters were investigated in the presence and absence of EDTA. Growth inhibitions in both aquatic plants were observed in a concentration-dependent manner, irrespective of the presence or absence of EDTA. For instance, based on the specific growth rate (leaves cove...
Source: Aquatic Toxicology - March 8, 2024 Category: Toxicology Authors: Rongxue Cui Jin Il Kwak Youn-Joo An Source Type: research
Toxic effects of triclosan on hepatic and intestinal lipid accumulation in zebrafish via regulation of m6A-RNA methylation
Aquat Toxicol. 2024 Mar 2;269:106884. doi: 10.1016/j.aquatox.2024.106884. Online ahead of print.ABSTRACTTriclosan (TCS), recognized as an endocrine disruptor, has raised significant concerns due to its widespread use and potential health risks. To explore the impact of TCS on lipid metabolism, both larval and adult zebrafish were subjected to acute and chronic exposure to TCS. Through analyzes of biochemical and physiological markers, as well as Oil Red O (ORO) and hematoxylin and eosin (H&E) staining, our investigation revealed that TCS exposure induced hepatic and intestinal lipid accumulation in larval and adult zeb...
Source: Aquatic Toxicology - March 8, 2024 Category: Toxicology Authors: Jinyun Li Lu Fang Miaocui Xi Anyu Ni Qiuhui Qian Zejun Wang Huili Wang Jin Yan Source Type: research
Ocean acidification impact on the uptake of trace elements by mussels and their biochemical effects
This study delves into the intricate interplay between ocean acidification (OA), metal bioaccumulation, and cellular responses using mussels (Mytilus galloprovincialis) as bioindicators. For this purpose, environmentally realistic concentrations of isotopically labelled metals (Cd, Cu, Ag, Ce) were added to investigate whether the OA increase would modify metal bioaccumulation and induce adverse effects at the cellular level. The study reveals that while certain elements like Cd and Ag might remain unaffected by OA, the bioavailability of Cu and Ce could potentially escalate, leading to amplified accumulation in marine org...
Source: Aquatic Toxicology - March 5, 2024 Category: Toxicology Authors: A Romero-Freire L De Marchi R Freitas A Velo J M F Babarro A Cobelo-Garc ía Source Type: research
Ocean acidification impact on the uptake of trace elements by mussels and their biochemical effects
This study delves into the intricate interplay between ocean acidification (OA), metal bioaccumulation, and cellular responses using mussels (Mytilus galloprovincialis) as bioindicators. For this purpose, environmentally realistic concentrations of isotopically labelled metals (Cd, Cu, Ag, Ce) were added to investigate whether the OA increase would modify metal bioaccumulation and induce adverse effects at the cellular level. The study reveals that while certain elements like Cd and Ag might remain unaffected by OA, the bioavailability of Cu and Ce could potentially escalate, leading to amplified accumulation in marine org...
Source: Aquatic Toxicology - March 5, 2024 Category: Toxicology Authors: A Romero-Freire L De Marchi R Freitas A Velo J M F Babarro A Cobelo-Garc ía Source Type: research
Ocean acidification impact on the uptake of trace elements by mussels and their biochemical effects
This study delves into the intricate interplay between ocean acidification (OA), metal bioaccumulation, and cellular responses using mussels (Mytilus galloprovincialis) as bioindicators. For this purpose, environmentally realistic concentrations of isotopically labelled metals (Cd, Cu, Ag, Ce) were added to investigate whether the OA increase would modify metal bioaccumulation and induce adverse effects at the cellular level. The study reveals that while certain elements like Cd and Ag might remain unaffected by OA, the bioavailability of Cu and Ce could potentially escalate, leading to amplified accumulation in marine org...
Source: Aquatic Toxicology - March 5, 2024 Category: Toxicology Authors: A Romero-Freire L De Marchi R Freitas A Velo J M F Babarro A Cobelo-Garc ía Source Type: research
The impact of chronic and acute problems on sea turtles: The consequences of the oil spill and ingestion of anthropogenic debris on the tropical semi-arid coast of Cear á, Brazil
This study aimed to investigate whether sea turtle mortality was related to older marine problems, such as solid waste, or one of the largest oil spill accidents on the Brazilian coast, that occurred in 2019. We posed three questions: 1) Are there solid residues in the digestive tract samples, and which typology is the most abundant? 2) Can meso‑ and macro-waste marine pollutants cause mortality? 3) Is the dark material found really oil? A total of 25 gastrointestinal content (GC) samples were obtained, of which 22 ingested waste of anthropogenic origin and 18 were necropsied. These 22 samples were obtained during or aft...
Source: Aquatic Toxicology - March 3, 2024 Category: Toxicology Authors: Alice F Feitosa Ícaro B H M P Menezes Oscar S Duarte Carminda S B Salmito-Vanderley Pedro B M Carneiro Rufino N A Azevedo Andr é H B Oliveira Ana C S Luz Adriana P Nascimento Ronaldo F Nascimento Laercio L Martins Rivelino M Cavalcante Caroline V Feitos Source Type: research
