Structuring effect of submerged macrophytes on trophic relationships and distribution of fish in deep lakes

Dept 58 - International Relations Department
Dept 58 - International Relations Department

Published

Updated 23-12-2014
  • region changed

Project
RegionNational coverage
Title of the ProgrammeCzech-Norwegian Research Programme
Title of the ProjectStructuring effect of submerged macrophytes on trophic relationships and distribution of fish in deep lakes
Number of the Project7F14316
Project Promoter

Biology Centre of the Academy of Sciences of the Czech Republic

www.bc.cas.cz

Name of Norwegian Partner(s)

Norwegian Institute for Nature Research

Objective of the Project

Predation by fish is the primary top-down structuring force in aquatic ecosystems, and a change in predator-prey interactions involving fish may cause a change in the strength of trophic cascades and finally result in ecosystem shifts. Submerged macrophytes play an important role beyond that of primary production, as they provide increased structural complexity and niche potentials for fish. However, most of the scientific attention on habitat use in fish and the influence of macrophytes have been given to small and shallow lakes, where the vegetated areas are well-developed and the availability of a large deep water refugium is absent or limited. Our goal is to gain a detailed understanding of the structuring effect the submerged macrophytes have on fish communities in deep lakes.

Approved grant

850 377 EUR

Project DurationStart date: 1st August 2014, End date: 30th April 2017