Diferencias entre sexos en la mortalidad ocasionada por el insecticida Azadiractina sobre una especie zooplanctónica
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2019-04-29
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Jaén: Universidad de Jaén
Resumen
[ES] La revolución agrícola y ganadera junto a las prácticas agrícolas han contribuido a la
generación de diversos problemas ambientales, principalmente debido al uso de
productos fitosanitarios para incrementar la producción. Todo esto lleva a la investigación de los posibles problemas que conllevan este tipo de práctica sobre las comunidades
bióticas, concretamente sobre la fauna acuática.
De este modo, en este trabajo se pretende detectar posibles diferencias entre sexos en la mortalidad ocasionada por el insecticida Azadiractina sobre el copépodo
Arctodiaptomus salínus. Para ello un total de 576 individuos con un ratio de sexos 1 :1 y repartidos en 72 réplicas fueron expuestos a 5 concentraciones de dicho pesticida (0'025 mg/L, 0'04 mg/L, 0'05 mg/L, 0'07 mg/L y O' 1 mg/L) por debajo de la dosis letal para el
50% de la población (LCso) durante 96 horas.
No ha habido diferencias significativas en la mortalidad entre machos y hembras en
concentraciones inferiores a O' 1 mg/L.
[EN] The agricultura! and livestock revolution and agricultura! practice have contributed to the generation of environmental problems, mainly because of phytosanitary products to increase the production. AII this leads to the investigation of several problems in the biotic communities, specifically the aquatic fauna. This project intends to detect possible differences between sexes in the mortality caused by the insecticide Azadirachtin on the copepod Arctodíaptomus salínus. With a total of 576 individuals with a sex ratio of 1 :1 and distributed in 72 replicates, they were exposed to 5 concentrations of this insecticide (0'025 mg/L, 0'04 mg/L, 0'05 mg/L, 0'07 mg/L and 0'1 mg/L) below the lethal dose for 50% of the population (LCso) for 96 hours. There have been no significant differences between males and females mortality at concentrations lower than O' 1 mg/L.
[EN] The agricultura! and livestock revolution and agricultura! practice have contributed to the generation of environmental problems, mainly because of phytosanitary products to increase the production. AII this leads to the investigation of several problems in the biotic communities, specifically the aquatic fauna. This project intends to detect possible differences between sexes in the mortality caused by the insecticide Azadirachtin on the copepod Arctodíaptomus salínus. With a total of 576 individuals with a sex ratio of 1 :1 and distributed in 72 replicates, they were exposed to 5 concentrations of this insecticide (0'025 mg/L, 0'04 mg/L, 0'05 mg/L, 0'07 mg/L and 0'1 mg/L) below the lethal dose for 50% of the population (LCso) for 96 hours. There have been no significant differences between males and females mortality at concentrations lower than O' 1 mg/L.