MARC

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024 7 |a 10.3856/vol53-issue5-fulltext-3485  |2 doi 
035 |a 3272757683 
045 2 |b d20251101  |b d20251130 
084 |a 107614  |2 nlm 
100 1 |a Trejo-Flores, José Vladimir  |u Programa de Doctorado en Ciencias Biológicas Agropecuarias, Área de Ciencias Pesqueras Universidad Autónoma de Nayarit, Xalisco, Nayarit, México 
245 1 |a Impact of high-density polyethylene (HDPE) microplastics exposure on Penaeus vannamei survival 
260 |b Pontificia Universidad Catolica de Valparaiso  |c Nov 2025 
513 |a Journal Article 
520 3 |a ABSTRACT. High-density polyethylene microplastics (HDPE-MPs) represent an emerging threat to aquatic ecosystems and aquaculture species, such as Penaeus vannamei. This study examined the impact of PE-MPs on the survival and growth of shrimp postlarvae and juveniles under controlled laboratory conditions. Bioassays were conducted using HDPE-MPs (34-50 um) at concentrations ranging from 5 to 625 mg L-'. Survival, specific growth rate (SGR), and LCs, values were assessed. Ingestion of MPs was confirmed in postlarvae using fluorescence microscopy with Nile red staining. Postlarvae showed 100% mortality at 625 mg L7, with an LCso of 21.89 mg L!, while juveniles reached 70% mortality at 125 mg L·, with an LCs of 30.6 mg L·. Both stages exhibited a significant dose-dependent reduction in survival with MPs (P < 0.05). SGR declined markedly at concentrations of >100 mg L·. Behavioral alterations, lethargy, and reduced feeding were observed, along with the accumulation of MPs in the tissues of dead shrimp, indicating physiological disruption. Postlarvae exhibited greater sensitivity to LCso concentrations, although juveniles may have a relatively higher particle ingestion capacity when considering biomass and size proportions. This study provides the first LCs, values for P. vannamei postlarvae and juveniles exposed solely to HDPE-MPs, highlighting the role of organism size and developmental stage in susceptibility. These results underscore the urgent need to establish toxicity thresholds for MPs in aquaculture species and inform strategies to mitigate their impact. Understanding MP-related risks is essential for enhancing biosecurity and sustainability in shrimp farming system. 
651 4 |a Mexico 
653 |a Physiology 
653 |a Shellfish 
653 |a Ingestion 
653 |a Lethargy 
653 |a Mortality 
653 |a Developmental stages 
653 |a Fluorescence microscopy 
653 |a Farming systems 
653 |a Sediments 
653 |a Bio-assays 
653 |a Growth rate 
653 |a Metabolism 
653 |a Shrimps 
653 |a Survival 
653 |a Laboratory animals 
653 |a Oxidative stress 
653 |a Shrimp culture 
653 |a Bioassays 
653 |a Polyethylene 
653 |a Particle size 
653 |a Aquaculture 
653 |a Shellfish farming 
653 |a Plastic pollution 
653 |a Pollutants 
653 |a Juveniles 
653 |a Aquatic ecosystems 
653 |a Toxicity 
653 |a Polymers 
653 |a Fluorescence 
653 |a Microplastics 
653 |a Marine crustaceans 
653 |a Biosecurity 
653 |a Immune response 
653 |a High density polyethylenes 
653 |a Crustaceans 
653 |a Penaeus vannamei 
653 |a Environmental 
700 1 |a Peraza-Gómez, Viridiana  |u Programa de Doctorado en Ciencias Biológicas Agropecuarias, Área de Ciencias Pesqueras Universidad Autónoma de Nayarit, Xalisco, Nayarit, México 
700 1 |a Espinoza, Emmanuel Ortiz  |u Instituto Tecnológico de Tlajomulco, Tecnológico Nacional de México Tlajomulco de Zúñiga, Jalisco, México 
700 1 |a Fierro-Coronado, Jesús Arturo  |u Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa Instituto Politécnico Nacional, Guasave, Sinaloa, México 
700 1 |a Robles-Ravelero, Maricruz  |u Posgrado en Ciencias en Recursos Acuáticos. Facultad de Ciencias del Mar Universidad Autónoma de Sinaloa, Mazatlán, Sinaloa,México 
700 1 |a Moreno-Medrano, Edgar David 
700 1 |a Osuna-Laveaga, Daryl Rafael 
700 1 |a Luna-González, Antonio 
773 0 |t Latin American Journal of Aquatic Research  |g vol. 53, no. 5 (Nov 2025), p. 837-851 
786 0 |d ProQuest  |t Science Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3272757683/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/3272757683/fulltext/embedded/6A8EOT78XXH2IG52?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3272757683/fulltextPDF/embedded/6A8EOT78XXH2IG52?source=fedsrch