Mostrando 1 - 3 Resultados de 3 Para Buscar 'Quintana Paetán, Sigfredo Alexander', tiempo de consulta: 0.18s Limitar resultados
1
artículo
The “Pintadilla” (Cheilodactylus variegatus Valenciennes, 1833) is a marine species that grows near the coast and is caught by artisanal fishing for human consumption. The objective of this study was to determine the concentration of mercury in this species in both muscle tissue and liver tissue. A total of 32 samples were collected, for 8 months, determining the concentration of total mercury using the cold vapor atomic absorption spectrophotometer. In general, the highest average concentration of total mercury was found in the samples collected in the Chorrillos Artisanal Fishery Market, both for muscle tissue (0.0563-0.2632 mg/kg) and for liver tissue (0.0464-0.2694 mg/kg), with respect to the Ancon Artisanal Fisheries Market, both for muscle tissue (0.0273-0.1193 mg/kg) and for liver tissue (0.0488-0.1911 mg/kg) all on a wet basis. It was observed that these results do not exceed...
2
artículo
The "pintadilla" (Cheilodactylus variegatus Valenciennes, 1833) is a marine species that grows near the coast and is caught by artisanal fishing for human consumption. The objective of this study was to determine the concentration of the elements As, Cd, Cu, Mn, Se and Zn in this species (muscle tissue and liver tissue) in the coastal zone of Lima. A total of 32 samples were collected, during 8 months (period from september 2018 to march 2019), in the Artisanal Fisheries Markets of Chorrillos and Ancon, determining the concentration ofthe mentioned elements by means of optical emission spectrophotometry with inductively coupled plasma (ICP-OES). In general, the highest average concentrations of elements were found in liver tissue compared to muscle tissue for both areas (cadmium and manganese were not detected in muscle tissue). It was evidenced that there is no significant difference be...
3
tesis de maestría
Precisa los niveles de mercurio (Hg) en forma total, expresado como mg/kg, en la “Pintadilla” Cheilodactylus variegatus Valenciennes, 1833, en la franja costera comprendida entre Chorrillos - Ancón, Lima, Perú, en el intervalo de tiempo comprendido desde setiembre 2018 hasta marzo 2019, provenientes de las diferentes fuentes de contaminación de la zona. El mercurio es un metal pesado con la capacidad de acumularse en organismos marinos, siendo altamente tóxico, especialmente en su forma orgánica. La “Pintadilla” (Cheilodactylus variegatus Valenciennes, 1833) habita en áreas cercanas a la costa, siendo, nuestra zona de estudio, la sección comprendida entre Chorrillos y Ancón que es afectada por las descargas de tipo antropogénico que se da a lo largo de la costa. En el trabajo de investigación, se evaluó la acumulación de mercurio en la especie marina “Pintadilla”....