Presencia de microplásticos en peces pelágicos de mayor comercialización en los mercados de San Vicente y Bahía de Caráquez

This study investigated the presence of microplastics in pelagic fish sold in the markets of San Vicente and Bahía de Caráquez, Ecuador, due to growing concerns about the impact of this contamination on public health and marine ecosystems. Through interviews and surveys, the most commercially traded species were identified. A total of 144 samples were collected, with Pomatomus saltatrix and Pagrus pagrus being the most abundant species. Microplastics were found in 37 samples of Pomatomus saltatrix and 33 Pagrus pagrus in San Vicente, and in 22 samples of Pagrus pagrus and 19 of Kajikia audax in Bahía de Caráquez. Kruskal-Wallis tests were performed to assess differences in microplastic loads among species. In San Vicente, a significant difference was found in microplastic weight between species (H = 15.64, p = 0.001). Centropomus undecimalis showed high variability with a standard deviation of 4.72, while Pagrus pagrus had a more uniform exposure with a mean of 2.50. In Bahía de Caráquez, the results also showed significant variability (H = 9.68, p = 0.0006), with Centropomus undecimalis having a standard deviation of 4.68 and Pagrus pagrus a mean of 0.93. These results suggest that exposure to microplastics is not uniform and varies by species and location. Pairwise comparisons indicated that Pagrus pagrus had the highest levels of microplastics.

• Главный автор: Arteaga Delgado, Jean Carlos (author)
• Другие авторы: Santos Vélez, Mónica Germania (author)
• Формат: bachelorThesis
• Язык: spa
• Опубликовано: 2024
• Предметы: Contaminación marina; Seguridad alimentaria; Tracto gastrointestinal
• Online-ссылка: http://repositorio.espam.edu.ec/handle/42000/2640