RESUMO
The gut contents of 292 planktivorous fish, from four families (Atherinopsidae, Clupeidae, Engraulidae and Scombridae) and seven species, captured along the coast of the southeast Pacific, were examined for microplastic contamination. Only a small fraction of all studied fish (2.1%; 6 individuals) contained microplastic particles in their digestive tract. Microplastics found were degraded hard fragments and threads, ranging from 1.1 to 4.9 (3.8±SD 2.4) mm in length, and of various colours, which suggests that the planktivorous fish species examined herein did not capture microplastics on the basis of their colour. The low prevalence of microplastic contamination in planktivorous fishes found in this study suggests that the risk of accidental ingestion by these species might be limited in the coastal upwelled waters of the southeast Pacific, perhaps due to small human population and highly dynamic oceanographic processes.
Assuntos
Peixes , Plásticos/análise , Poluentes Químicos da Água/análise , Animais , Monitoramento Ambiental , Oceano PacíficoRESUMO
Microplastics pollution is a growing global concern that affects all aquatic ecosystems. Microplastics in the environment can be in the form of fibers and/or particles, being the former the most abundant in the marine environment, representing up to 95% of total plastics. The aim of this work was to compare the content of microplastics among intertidal fish with different feeding type. Our results show that omnivorous fish presented a higher amount of microplastic fibers than registered in herbivores and carnivores. Moreover, lower condition factors (K) were found in omnivorous specimens with higher microplastic content. We hypothesized that the type of feeding resulted in different microplastic ingestion, with species with wider range of food sources as omnivores with higher rates. Futures studies carried out to evaluate the biological impacts of microplastics on marine organisms, and microplastics cycling on the marine environment should consider the type of feeding of the studied species.
Assuntos
Carnivoridade , Peixes , Conteúdo Gastrointestinal , Herbivoria , Plásticos , Animais , Organismos Aquáticos , Monitoramento Ambiental , Poluentes Químicos da ÁguaRESUMO
Se presenta el caso clínico de una mujer que cursa su segundo embarazo, donde se le diagnostica ecográficamente al feto una malformación adenomatosa quística pulmonar (MAQP), a las 19 semanas. La evolución del embarazo fue sin complicaciones, llegando a término y sin requerir tratamientos intrauterinos ni estudios especiales. El recién nacido fue dado de alta con buena evolución y asintomático. Dado lo infrecuente de la enfermedad, así como su evolución y los pocos casos de diagnóstico prenatal reportados, se decide su presentación.
Assuntos
Humanos , Estudos de Casos e Controles , Evolução Clínica , Malformação Adenomatoide Cística Congênita do Pulmão/diagnóstico , Malformação Adenomatoide Cística Congênita do Pulmão/terapia , Malformação Adenomatoide Cística Congênita do Pulmão , Ultrassonografia Pré-NatalRESUMO
Se presenta el caso clínico de una mujer que cursa su segundo embarazo, donde se le diagnostica ecográficamente al feto una malformación adenomatosa quística pulmonar (MAQP), a las 19 semanas. La evolución del embarazo fue sin complicaciones, llegando a término y sin requerir tratamientos intrauterinos ni estudios especiales. El recién nacido fue dado de alta con buena evolución y asintomático. Dado lo infrecuente de la enfermedad, así como su evolución y los pocos casos de diagnóstico prenatal reportados, se decide su presentación. (AU)