Gentian Deiiiocrjiic Ri'p//hHc 



ZWEIGSTELLE FUER KARPFENTEICHWIRTSCHAFT 



man bodies of water ; eutrophic and oligotrophic lakes, 

 rivers, streams, subsoil water, and coastal areas. 

 PROVISIONS FOR VISITING SCIENTISTS: Research and 

 living space for visitors to be made available soon. 



MAJOR RESEARCH FACILITIES UNDER CONSTRUCTION: 



Moderately complete librar}'; small aquarium; research 

 collections of fauna and flora; small boats and out- 

 board motors. 

 SIZE OF staff: Eleven at professional level; 5 techni- 

 cians. 

 major current research projects and scientific 

 leaders: 

 hivestigations of Stechlin Lake and adjacent areas in 

 connection with the establishment of a nuclear 

 power plant (T. Schraeder and A. Rieth). 

 publications issued: Linuiologicd (3 times a year) 



SCOPE OF activities: Restricted research on fish pond 

 fertilizing, feeding and breeding of carp. 



season of operation: All year. 



physical environment accessible: Fish ponds. 



provisions for visiting scientists: Research and 

 living space for 2 \isitors; no fees charged for research 

 space. 



MAJOR RESEARCH FACILITIES: Small library; small 

 aquarium tanks. 



SIZE OF STAFF: Two at professional level; 3 techni- 

 cians. 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 

 LEADERS: 



Chemistry of pond bottoms and water analysis (W. 



Mueller and G. Merla) 

 Carp feeding investigations (W. Mueller and G. 



Merla ) 

 Phosphate fertilizing experiments (W. Mueller and 



G. Merla) 



Forschungsstelle juer L'lmnologie 



LABORATORY OF LIMNOLOGY 



POSTAL ADDRESS: Alte Landstrasse 3, Jena-Lobeda, 

 Deutsche Demokratische Republik (Jena-Lobeda, East 

 Germany). 



EXECUTIVE officer: Dozent Dr. habil. Theodor 

 Schraeder, Leiter. 



SPONSORING AGENCY: Deutsche Akademie der Wissen- 

 schaften zu Berlin, Forschungsgemeinschaft (German 

 Academy of Science of Berlin, Research Society). 



YEAR FOUNDED: 1959. 



SCOPE OF ACTIVITIES: Unrestricted research on general 



fresh-water biology; ecology of adjacent areas. 

 SEASON OF OPi-RATioN: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: All East Ger- 



Huniboldt JJriiversitaet zu Berlin, Institut juer 

 F'lschereiuesen 



HUMBOLDT UNIVERSITY OF BERLIN, FISHERY 

 INSTITUTE 



POSTAL ADDRESS: Josef-Nawrocki Strasse 7, Berlin- 

 Friedrichshagen, Deutsche Demokratische Republik 

 (Berlin, East Germany) . 



EXECUTIVE OFFICER: Professor Dr. Diethelm Scheer, 

 Instituts-direktor. 



YEAR FOUNDED: 1945. 



SCOPE OF activities: Officially restricted research and 

 instruction on general ichthyology, fish diseases, pond 

 culture, fish genetics, fish nutrition, coastal fisheries, 

 zooplankton, and littoral algology. 



SEASON OF operation: All year. 



PHYSICAL environment ACCESSIBLE: Mueggelsee, 

 Seen der Spree, Dahme, and Havel; brackish, shallow 

 bays, eutrophic lake, and ponds, 



PROVISIONS FOR VISITING SCIENTISTS: Research space 

 for 2 visitors. 



MAJOR RESEARCH AND TEACHING FACILITIES: Small 



library; small aquarium tanks; research collection of 

 plankton from nearby lakes; identified reference col- 

 lections of local hsh and aquatic flora; skilled shop 

 workman available; small boats and outboard motors. 



INSTRUCTIONAL PROGRAM: Fish diseases, histology, 

 systematics of fresh-water fishes, bottom fauna and 

 flora, water chemistry, general marine biology, and 

 fishery biology. 



SIZE OF STAFF: Seven at professional level; 8 techni- 

 cians. 



MAJOR CURRENT RESEARCH PROJECTS: 



Fish genetics 



Nutrition of carp 



Chemical control of aquatic plants 



Fish species in coastal waters 



