The present work 01 "El Niño" effect on annual cycle 01 phytoplankton was carried out among January of 1997 and September 01 1998. The samples were obtained two times by month with a Niskin bottle to 0,5 m depth in a station located at 17°00'56"lS and 72°02'15" LW. The Uthermol's method modified was followed for the analysis. The major phytoplanktonic density was recorded in summer of 1997 with values range between 3335 and 21 705 cel x 50 mL associated to predominance of the silicollagellate Dyctiocha fibula, which in February represented 76% 01 total density. A great decrease 01 phytoplankton density was recorded since June of 1997 until January 01 1998 (50 to 688 cel x 50mL) characterizing oligotrophic conditions associated to positive deviations of temperature that reached in January-98 4,9°C upon normality. This produced an interruption of the spring upwelling and altering the p...

The present work 01 "El Niño" effect on annual cycle 01 phytoplankton was carried out among January of 1997 and September 01 1998. The samples were obtained two times by month with a Niskin bottle to 0,5 m depth in a station located at 17°00'56"lS and 72°02'15" LW. The Uthermol's method modified was followed for the analysis. The major phytoplanktonic density was recorded in summer of 1997 with values range between 3335 and 21 705 cel x 50 mL associated to predominance of the silicollagellate Dyctiocha fibula, which in February represented 76% 01 total density. A great decrease 01 phytoplankton density was recorded since June of 1997 until January 01 1998 (50 to 688 cel x 50mL) characterizing oligotrophic conditions associated to positive deviations of temperature that reached in January-98 4,9°C upon normality. This produced an interruption of the spring upwelling and altering the p...

En el año 2017 se realizaron encuestas comunitarias a través de 7 grupos focales aplicadas en el distrito de Alto Selva Alegre (Arequipa), para colectar información sobre “Conocimientos y usos de insecticidas para el control de chinches de cama y otros insectos caseros de Arequipa” como parte de un estudio de investigación cualitativa descriptiva. Participaron 49 voluntarios. La información colectada fue organizada y analizada mediante un análisis cualitativo. La información muestra que 3 de las 9 plagas reportadas representan un riesgo para la salud de la población (chirimachas 10.2%, cucarachas 8.2% y chinches de cama 4.1%). Las moscas y arañas fueron las más reportadas con 28.6 y 32.6% respectivamente. Los insecticidas son ampliamente utilizados para controlar plagas en la ciudad siendo 4 marcas las más utilizadas por la población. El 100% de los participantes identifi...

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