You are here: Gesellschaft fuer Marine Aquakultur - Projects - Completed Projects - NutriPerc

Nutritional requirements and alternative raw materials in sustainable percid fish aquaculture (NutriPerc)

The two percid fish species European pikeperch (Sander lucioperca) and the related North American walleye (Sander vitreus) are important candidate species for stock enhancements and recirculating aquaculture systems (RAS) due to their high ecological and economical relevance and their strong socio-cultural background in their regional provenance.

The knowledge on appropriate environmental parameters, nutritional requirements and energy metabolism of walleye and pikeperch is poor for almost all life stages.

We will identify the nutritional requirements of larvae, juveniles and adults of these two species under controlled laboratory and applied commercial scale conditions. We will quantify growth, nutrient retention and metabolic rates, and will develop a microdiet for larval stages, examine the effectiveness of different energy sources in juveniles, identify physiological causes for growth retardation in adult fish and assess the impacts of different environmental factors on the growth of adult pikeperch.

The NutriPerc project partners will investigate different objectives among the life stages of their regionally relevant species.

The group of Prof. Vandenbergh from Université Laval (Québec, Canada) will work on high level objectives and methodologies for intensive larval production of walleye.

Commercial scale hatchery conditions and feeding regimes of walleye will be part of the studies provided by Mr. Blanchet at Station Pisicole Trois Lacs (Wottonville, Québec, Canada).

The group of Prof. Hua from Humboldt-Universität zu Berlin will investigate aspects of the requirement and utilization of dietary energy and macronutrients for juvenile life stages of pikeperch.

The group of Prof. Dr. Schulz from Christian-Albrechts-Universität zu Kiel and Dr. Meyer from GMA will work with adult life stages of pikeperch to assess nutritional requirements and the effect of environmental parameters on energy metabolism under controlled laboratory conditions (flow-chamber respirometry, feeding trials etc.).

Project Staff

Prof. Dr. Carsten Schulz, Scientific Director
Dr. Stefan Meyer, Research Assistant
Kathrin Steinberg, PhD Student
Jan Zimmermann, PhD Student

Timeframe

January 2015 - December 2018

Financing

Federal Ministry of Education and Research, Germany

http://www.uni-kiel.de/Christian-Albrechts-Universität zu Kiel
http://www.gma-buesum.deGesellschaft für Marine Aquakultur (GMA) mbH

Die GMA hat sich zum Ziel gesetzt, den Entwicklungsprozess der Aquakultur und im speziellen der Marinen Aquakultur im Bereich der angewandten Forschung zu begleiten und zu unterstützen. Am Standort Büsum ist dazu 2009 ein Forschungszentrum entstanden, das nach den neuesten wissenschaftlichen und technischen Vorgaben eingerichtet ist.

https://www.hu-berlin.de/de/Humboldt-Universität zu Berlin
https://www2.ulaval.ca/accueil.htmlUniversité Laval
http://www.stationpiscicole3lacs.com/Station Piscicole Trois Lacs
http://www.zander-drellborg.de/Fischaufzucht Drellborg GmbH & Co. KG