Presencia de microplásticos en el tracto digestivo de peces de la bahía de Cienfuegos, Cuba
Fecha
2019-06
Autores
Reyes Noa, Dariadelys
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Central "Marta Abreu " de Las Villas
Resumen
La presencia de microplásticos en p
eces se ha documentado en diferentes países y en una
variedad de hábitats que incluyen sistemas estuarinos, dulceacuícolas y ecosistemas
marinos. El objetivo general de esta investigación fue evaluar la presencia de estas
micropartículas en el tracto diges
tivo de nueve especies de peces representativas de la
bahía de Cienfuegos. Los microplásticos fueron aislados del estómago de 88 individuos,
utilizando una solución de hidróxido de potasio (KOH) 10% para la digestión de la materia
orgánica a 60 ºC. Un tota
l de 172 microplásticos fueron extraídos del 42% del total de peces
(100% fibras) con un promedio de 4,6 ± 3,7 (DE) microplásticos por individuo y un máximo
de 14 micropartículas extraídas del estómago de dos individuos pertenecientes a la especie
Caranx l
atus.
Las especies de peces analizadas son vulnerables a la contaminación por
fibras, principalmente
Caranx latus
(jurel)
, Polydactylus virginicus
(barbú) y
Acanthurus
chirurgus
(barbero rayado) con 90%, 70% y 62,5% de ingestión, respectivamente. Con este
estudio se introdujo por primera vez en Cuba una metodología para el estudio de la
ingestión de microplásticos por peces en ecosistemas marinos. Además, se estableció una
línea base de estos contaminantes en la biota como herramienta para su monitoreo y la
evaluación de la eficacia de las acciones de manejo que se implementen en la bahía de
Cienfuegos.
The presence of microplastics in fish has been documented in different countries and in a variety of habitats including estu arine, freshwater systems and marine ecosystems . The general objective of this investigation was to evaluate the presence of these microparti cles in the digestive tract of nine fish species representative of the Cienfuegos Bay. T he microplastics were isolated from the stomach of 88 individuals, using a 10% solution of potassium hydroxide (KOH) for the digest ion of organic matter at 60 ºC . A total of 172 microp lastics were extracted from 42 % of the total fish (100% fibers) with an average 4,6 ± 3,7 (SD ) microplastics per individual and a maximum of 14 microparticles extracted from the stomach of two individuals belonging to the species Caranx latus . The species of fish analyzed are vulnerable to the contamination by fibers, mainly C aranx latus ( horse - eye jack ) , Polydactylus virgini cus (barb u ) and Acanthurus chirurgus ( Doctorfish ) with 90% , 70% and 62,5 % ingestion, respectively. With this study, a methodology for the study of the ingestion of microplastics by fish in marine ecosystems was introduced for the first time in Cuba. In addition, a baseline of these contaminants was established in the biota as a tool for monitoring and evaluating the effectiveness of the management actions implemented in Cienfuegos Bay
The presence of microplastics in fish has been documented in different countries and in a variety of habitats including estu arine, freshwater systems and marine ecosystems . The general objective of this investigation was to evaluate the presence of these microparti cles in the digestive tract of nine fish species representative of the Cienfuegos Bay. T he microplastics were isolated from the stomach of 88 individuals, using a 10% solution of potassium hydroxide (KOH) for the digest ion of organic matter at 60 ºC . A total of 172 microp lastics were extracted from 42 % of the total fish (100% fibers) with an average 4,6 ± 3,7 (SD ) microplastics per individual and a maximum of 14 microparticles extracted from the stomach of two individuals belonging to the species Caranx latus . The species of fish analyzed are vulnerable to the contamination by fibers, mainly C aranx latus ( horse - eye jack ) , Polydactylus virgini cus (barb u ) and Acanthurus chirurgus ( Doctorfish ) with 90% , 70% and 62,5 % ingestion, respectively. With this study, a methodology for the study of the ingestion of microplastics by fish in marine ecosystems was introduced for the first time in Cuba. In addition, a baseline of these contaminants was established in the biota as a tool for monitoring and evaluating the effectiveness of the management actions implemented in Cienfuegos Bay
Descripción
Palabras clave
Ecosistemas Marinos, Contaminantes, Ingestión, Microplásticos, Peces, Marine Ecosystems, Contaminants, Ingestion, Microplastics, Fish