Acta Parasitologica

, 53:392 | Cite as

Effect of extreme temperature on egg development, larval and adult survival of Chordodes nobilii Camerano, 1901 (Gordiida, Nematomorpha)

  • Cecilia Luján Achiorno
  • Lucrecia Ferrari
  • Cristina De Villalobos
Original Paper


On the basis of experimental studies we analyzed the effect of extreme temperatures on the aquatic free-living phases of the life cycle of Chordodes nobilii (Gordiida, Nematomorpha). Bioassays were performed with eggs, larvae, and adults. Eggs and larvae were exposed to 3°C below zero and 40.5°C; adults were exposed to 3°C below zero and to 38.5°C and 40.5°C. The results showed that egg development was inhibited in both tests. Exposed larvae showed a decrease in their infective capacity, which resulted almost null at 40.5°C. Adults exposed to 38.5°C showed mortality ≤10%, at 40.5°C the mortality was 100% and the adult’s mortality at 3°C below zero was 89%. Results indicate that free living stages of Chordodes nobilii are susceptible to extreme temperatures.


Nematomorpha Gordiida Chordodes nobilii life cycle extreme temperatures 


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Copyright information

© © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Cecilia Luján Achiorno
    • 1
    • 2
  • Lucrecia Ferrari
    • 3
    • 4
  • Cristina De Villalobos
    • 1
    • 4
  1. 1.Facultad de Ciencias Naturales y Museo Universidad Nacional de La PlataLa PlataArgentina
  2. 2.Consejo Nacional de Investigaciones Científicas y TécnicasCiudad de Buenos AiresArgentina
  3. 3.Programa de Ecofisiología Aplicada, Departamento de Ciencias BásicasUniversidad Nacional de LujánLujánArgentina
  4. 4.Comisión de Investigaciones Científicas de la Provincia de Buenos AiresBuenos AiresArgentina

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