Productivity and Sensitivity of Daphnia similis and Daphnia magna in Different Cultivation’s Aspects

Authors

  • Aline Cristina Beatrici Centro de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
  • A. Arenzon Centro de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
  • N. J. Coimbra Centro de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
  • M. T. Raya-Rodriguez Centro de Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil

DOI:

https://doi.org/10.5132/jbse.2006.02.006

Keywords:

D. similis, D. magna, sensitivity, fertility

Abstract

Various aspects of cultivation may influence an organism’s productivity and sensitivity. This research focuses on evaluating the effects of different diets and cultivation media on sensitivity and reproduction of D. similis and D. magna. Diets consisted of Pseudokirchneriella subcapitata at 1.5.105 cells.ml–1 and Scenedesmus subspicatus at 106 cells.ml–1. This algae combination was supplemented with a trout or Artemia feed. During twenty one days the mean number of neonates per female were observed daily for each treatment. Simultaneously to this, potassium dichromate sensitivity essays were also performed, according to NBR 12713, for each diet. Results on fertility was not significantly altered while using a diet of P. subcapitata for D. similis and S. subspicatus for D. magna, indicating Artemia feed as an alternative to M4 medium. Regarding sensitivity, every analyzed case showed more resistance to potassium dichromate when cultivated in ISO medium.

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Published

20-12-2006

How to Cite

Beatrici, A. C., Arenzon, A., Coimbra, N. J., & Raya-Rodriguez, M. T. (2006). Productivity and Sensitivity of Daphnia similis and Daphnia magna in Different Cultivation’s Aspects. Ecotoxicology and Environmental Contamination, 1(2), 123–126. https://doi.org/10.5132/jbse.2006.02.006

Issue

Vol. 1 No. 2 (2006)

Section

Original Articles

License

Copyright (c) 2006 Ecotoxicology and Environmental Contamination

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