Dr. Ilia Ostrovsky

Coupling physical, sedimentological and biogeochemical processes in a stratified lake.

The Water Research Centre presented a lunch time seminar on June 5th 2011 titled 'Coupling physical, sedimentological and biogeochemical processes in a stratified lake' by visiting academic Dr. Ilia Ostrovsky. Dr. Ostrovsky is from the Israel Oceanography & Limnology Research, Kinneret Limnological Laboratory, Israel.

ABSTRACT
Internal seiching and related water motions near lake boundaries affect the entire ecosystem by inducing sediment resuspension, increasing nutrient fluxes from the sediments, and generating nutrient inputs into the epilimnion.

These processes have resulted in formation of spatial heterogeneity in primary productivity, spatial distribution of planktonic organisms and fish, sedimentation fluxes, and bottom sediment characteristics. These processes are also important to the emission of methane from bottom sediments and for greenhouse gas emissions by lakes.