气候变化领域集成服务门户(CCPortal): Effects of climate change and mixtures of pesticides on the Amazonian fish Colossoma macropomum

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DOI	10.1016/j.scitotenv.2024.171379
	Effects of climate change and mixtures of pesticides on the Amazonian fish Colossoma macropomum
	de Souza, Samara Silva; Bruce, Kerem Hapuque Rodrigues; da Costa, Jaqueline Custodio; Pereira, Desyree; da Silva, Grazyelle Sebrenski; Val, Adalberto Luis
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	922
卷号	922
英文摘要	Several studies highlighted the complexity of mixing pesticides present in Amazonian aquatic environments today. There is evidence that indicates that ongoing climate change can alter the pattern of pesticide use, increasing the concentration and frequency of pesticide applications. It is known that the combination of thermal and chemical stress can induce interactive effects in aquatic biota, which accentuates cell and molecular damage. However, considering that the effects of climate change go beyond the increase in temperature the objective of this study was to evaluate the effect of climate change scenarios proposed by 6 th IPCC report and a mixture of pesticides on the tambaqui (Colossoma macropomum). The hypothesis of this study is that the negative effects will be accentuated by the combination of an extreme climate changes scenario and a mixture of pesticides. To test the hypothesis, juvenile tambaqui were exposed to a combination of four pesticides (chlorpyrifos, malathion, carbendazim and atrazine) in two scenarios, one that simulates current environmental conditions and another that predicted the environmental scenario for the year 2100. Fish were subjected to the experimental conditions for 96 h. At the end of the experiment, samples of blood, gills, liver, brain, and muscle were obtained for hematological, genotoxic, biochemical, and histopathological analyses. The results demonstrate that environmentally realistic concentrations of pesticides, when mixed, can alter the biochemical responses of tambaqui. The extreme scenario promotes hematological adjustments, but impairs branchial antioxidant enzymes. There is an interaction between the mixture of pesticides and the extreme scenario, accentuating liver tissue damage, which demonstrates that even increased activity of antioxidant and biotransformation enzymes were not sufficient to prevent liver damage.
英文关键词	Extreme scenario; Global warming; Interactive effects; Temperature; Antioxidant
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001219233800001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/308563
作者单位	Institute Nacional de Pesquisas da Amazonia; Universidade Federal de Amazonas
推荐引用方式 GB/T 7714	de Souza, Samara Silva,Bruce, Kerem Hapuque Rodrigues,da Costa, Jaqueline Custodio,et al. Effects of climate change and mixtures of pesticides on the Amazonian fish Colossoma macropomum[J],2024,922.
APA	de Souza, Samara Silva,Bruce, Kerem Hapuque Rodrigues,da Costa, Jaqueline Custodio,Pereira, Desyree,da Silva, Grazyelle Sebrenski,&Val, Adalberto Luis.(2024).Effects of climate change and mixtures of pesticides on the Amazonian fish Colossoma macropomum.SCIENCE OF THE TOTAL ENVIRONMENT,922.
MLA	de Souza, Samara Silva,et al."Effects of climate change and mixtures of pesticides on the Amazonian fish Colossoma macropomum".SCIENCE OF THE TOTAL ENVIRONMENT 922(2024).