接触微塑料会破坏金鱼的能量平衡和福利
Microplastic Exposure Disrupts Energy Homeostasis and Welfare in Goldfish.
摘要(中文译文)
微塑料在水生生态系统中的积累对鱼类生理和福利构成重大威胁。本研究调查了暴露于原始聚苯乙烯微塑料（15 µm）对金鱼能量平衡和福利的影响。鱼暴露14天，并通过行为、代谢、神经内分泌和生理参数的综合分析评估其影响。微塑料暴露显著降低了摄食量和摄食预期活动，表明具有强效的厌食作用。这种效应由神经内分泌紊乱驱动，其特征是促食欲神经肽（、 、 ）的下调和厌食信号（、 、 ）的上调。同时，暴露的鱼表现出耗氧量增加，表明代谢需求升高。这些因素共同导致生长受损和肝体指数降低，表明能量分配发生改变。此外，微塑料暴露诱导了焦虑样反应并增加了血浆皮质醇水平，证实了生理应激反应的激活。总体而言，这些发现表明微塑料破坏能量稳态并引发行为改变，最终损害鱼类福利和水生物种的生物韧性。
Abstract
The accumulation of microplastics in aquatic ecosystems poses a significant threat to fish physiology and welfare. This study investigated the impact of exposure to virgin polystyrene microplastics (15 µm) on energy balance and welfare in goldfish (). Fish were exposed for 14 days, and the effects were assessed through an integrated analysis of behavioral, metabolic, neuroendocrine, and physiological parameters. Microplastic exposure significantly reduces feed intake and feed anticipatory activity, indicating a potent anorexigenic effect. This effect was driven by neuroendocrine disruption, characterized by the downregulation of orexigenic neuropeptides (, , ) and the upregulation of anorexigenic signaling (, , ). Simultaneously, exposed fish exhibited increased oxygen consumption, suggesting elevated metabolic demands. These factors converged to impaired growth and reduced hepatosomatic index, suggesting altered energy allocation. Furthermore, microplastic exposure induced anxiety-like responses and increased plasma cortisol levels, confirming the activation of the physiological stress response. Overall, these findings demonstrate that microplastics disrupt energy homeostasis and trigger behavioral shifts that ultimately compromise fish welfare and the biological resilience of aquatic species.
如何引用
AMA
Lisbeth Herrera-Castillo, Nerea Navajas-Jiménez, André Barany, Esther Isorna, Miguel Gómez-Boronat, Nuria de Pedro. Microplastic Exposure Disrupts Energy Homeostasis and Welfare in Goldfish.. Animals : an open access journal from MDPI. 2026; doi:10.3390/ani16091381.
APA
Lisbeth Herrera-Castillo, Nerea Navajas-Jiménez, André Barany, Esther Isorna, Miguel Gómez-Boronat, Nuria de Pedro (2026). Microplastic Exposure Disrupts Energy Homeostasis and Welfare in Goldfish.. Animals : an open access journal from MDPI. https://doi.org/10.3390/ani16091381
GB/T 7714
Lisbeth Herrera-Castillo, Nerea Navajas-Jiménez, André Barany, Esther Isorna, Miguel Gómez-Boronat, Nuria de Pedro. Microplastic Exposure Disrupts Energy Homeostasis and Welfare in Goldfish.[J]. Animals : an open access journal from MDPI, 2026 doi:10.3390/ani16091381.
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