Seeweite Bodensee-Messkampagne 2007 als Test für BodenseeOnline

Abstract

A lake-wide field campaign was conducted during spring 2007 in Lake Constance to assess three-dimensional distributions of temperature, phyto- and zooplankton and fish. The observed distributions of plankton and temperature were heavily affected by a strong westerly wind that forced the warm epilimnetic water into the eastern part of the lake. During that situation high abundances of plankton were present only in the eastern part of Lake Constance. At the same time cold, hypolimnetic water depleted of plankton was found at the surface in the western part. During low wind velocities phytoplankton distribution was governed by internal factors affecting plankton growth. For the period of the field campaign simulations were run with the coupled hydrodynamic-ecological Model ELCOM-CAEDYM, which showed a good agreement with the measurements, validating the applied model specification.