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Análisis de la presencia de microplásticos en estómago de la lisa Mugil cephalus (Linnaeus, 1758) en playa La Robalera y bahía del Perro, Ahome, Sinaloa

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Researchers examined stomachs of striped mullet (Mugil cephalus) from two coastal sites in Sinaloa, Mexico, finding an average of 6 microplastics per stomach with a mean particle size of 2,625 µm in autumn, with larger fish consuming more particles and males showing higher microplastic counts and sizes than females.

Se ha calculado que a nivel global el 80% de la basura en el mar son plásticos. Dado que no se reciclan y se les vierte al medio marino, en donde se exponen al oleaje, salinidad, pH, luz ultravioleta, etc., los plásticos se fragmentan en partículas más pequeñas, como los microplásticos, que alcanzan tamaños entre 5 mm y 100 μm, y se pueden seguir degradando hasta nanoplásticos, menores a 100 nm. Estos micro- y nanoplásticos representan una amenaza para los animales, dado que provocan una ingesta incidental que afecta su crecimiento y reproducción, principalmente. En el presente estudio se encontró un gran número de plásticos en los estómagos de lisas en la playa La Robalera, en la estación de otoño, con una media de 2,625.33 μm, y un número de 6.0 microplásticos por estómago, al tiempo que los organismos de 23.1 a 28.0 cm consumieron el mayor número de ellos. En relación con el tamaño (μm) de microplásticos por sexo (hembras, machos o indiferenciados), estos fueron mayores en machos, tanto en tamaño, aproximadamente 5.9 μm de longitud, como en número, con 9.8.

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