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Supervisors: Dr. Katja Pulkkinen, MSc Sanni Aalto WET

Daphnia. Glugoides intestinalis, in the gut of Daphnia. The effect of stoichiometric balance of the food resource on the risk of parasite infection in Daphnia waterfleas. Kuva K. Pulkkinen. Kuva K. Pulkkinen. Supervisors: Dr. Katja Pulkkinen, MSc Sanni Aalto WET. Background.

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Supervisors: Dr. Katja Pulkkinen, MSc Sanni Aalto WET

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  1. Daphnia Glugoides intestinalis, in the gut of Daphnia The effect of stoichiometric balance of the food resource on the risk of parasite infection in Daphnia waterfleas Kuva K. Pulkkinen Kuva K. Pulkkinen Supervisors: Dr. Katja Pulkkinen, MSc Sanni Aalto WET

  2. Background • In lake ecosystems Daphnia-waterfleas are crucial mediators of interactions between primary producers (algae) and secondary consumers (predators e.g. fish) • Nutritional content of algae and parasites affect Daphnia growth, reproduction and population dynamics • Interdependence of these two factors is not known Pulkkinen & Aalto

  3. Background cont. • Nutritional value of algae • affects the resistance of Daphnia against parasites • affects the filtering rate of Daphnia • we study the effect of these two factors on the infection risk of Daphnia Pulkkinen & Aalto

  4. How to study • Model system (existing laboratory cultures) • Daphnia magna -waterflea • Glugoides intestinalis -parasite • Scenedesmus acutus –green alga • Place: aquaria room at Ambiotica • Work possible also as a pair or first part alone Pulkkinen & Aalto

  5. Tentative time plan Pulkkinen & Aalto

  6. Interested? Contacts: Katja office C314.1 pukaan@bytl.jyu.fi tel. 014 260 4220 Sanni office C324.2 sanni.aalto@bytl.jyu.fi Kuva K. Pulkkinen Pulkkinen & Aalto

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