Essays about: "pelagic food web"

Found 2 essays containing the words pelagic food web.

1. 1. The effect of visibility and predators on foraging efficiency in littoral and pelagic perch

   University essay from Uppsala universitet/Limnologi

   Author : Konrad Karlsson; [2012]
   Keywords : Resource polymorphism; Perca fluviatilis; phenotypic plasticity; habitat coupling; prey preference;

   Abstract : Phenotypic plasticity in Eurasian perch (Perca fluviatilis) can be driven by a trade-off for ecological specialisation to littoral and pelagic resources. Previous studies on perch have found that this specialisation can have different effects on linkage between the littoral and pelagic food web depending on water transparency. READ MORE

3. 2. Effects of food quantity, dietary fatty acids and temperature on fitness of Daphnia magna : a factorial experiment with Scenedesmus acutus and EPA amendments

   University essay from SLU/Dept. of Aquatic Sciences and Assessment

   Author : Bernadette Pree; [2011]
   Keywords : Daphnia magna; temperature; Scenedesmus acutus; food quality; dietary fatty acid amendment; food concentration; pelagic food web;

   Abstract : The performance of zooplankton has a major impact on the efficiency in trophic transfer in pelagic food webs and is therefore examined in this study. I investigated the effect of different food quantity and food quality, as measured by omega-3 fatty acid (ω3-FA) content on survival, somatic growth and reproduction of Daphnia magna at high and low temperatures in laboratory growth experiments. READ MORE