Sökning: "zooplankton"
Visar resultat 21 - 25 av 98 avhandlingar innehållade ordet zooplankton.
21. Thiamin (vitamin B1) in the aquatic food web
Sammanfattning : Thiamin (vitamin B1) is required for several life-sustaining processes in most organisms and cells, e.g. in the conversion of food to energy. It also serves as an antioxidant and is important for proper nerve signaling. LÄS MER
22. Daphnids adaptive strategies to UV radiation
Sammanfattning : This thesis focuses on the adaptive strategies of daphnids that allows them to maintain stable populations while deal with UV radiation, highlighting the differences in the responses that populations with different evolutionary histories may have.Although exposition to lethal doses in nature is unlikely, sub-lethal UV-B radiation doses may have strong impacts on zooplankton. LÄS MER
23. Aquatic organisms on the pill - effects on different organizational levels
Sammanfattning : Communities are composed of organisms that interact with each other and with the non-biological environment. There are also anthropogenic pollutants in the environment that also interact with the organisms. LÄS MER
24. Summer cyanobacterial blooms in the Baltic Sea - implications for copepod recruitment
Sammanfattning : During summer, the Baltic Sea is subjected to the world’s largest cyanobacterial blooms. These blooms are linked to eutrophication and raise many questions concerning their effects on the ecosystem. To understand their impacts on the food web dynamics, it is essential to assess growth responses of grazers to these cyanobacteria. LÄS MER
25. Trophic interactions and behaviour : Studies relevant to a Baltic Sea biomanipulation
Sammanfattning : The main theme of this thesis is the interactions of animals with the environment and each other. The thesis was written within the framework of a biomanipulation project “Pikeperch in Himmerfjärden”. LÄS MER