48 



Denmark 



Field laboratories: Suserup laboratory, Sora, Silke- 

 borg laboratory, Virklund, Silkeborg. 



location: Near Koebenhavn (Copenhagen). 



EXECUTIVE officer: Dr. Kaj Berg, Director and Pro- 

 fessor of Fresh-water Biology. 



i-EAR founded: 1900. 



SCOPE OF activities: Limnological research; graduate 

 and undergraduate instruction. 



SEASON OF operation: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Frederiksborg 

 Castle Lake; eutrophic and oligotrophic lakes, rivers 

 and streams. 



PROVISIONS FOR VISITING SCIENTISTS: Research and 

 living space for 5 visitors; no fees charged for re- 

 search space. 



MAJOR RESEARCH AND TEACHING FACILITIES: Ver)' ex- 

 tensive library; large outdoor ponds and tanks, small 

 aquarium tanks; limited identified reference collec- 

 tions of local fauna and flora, especially plankton; 

 wood shop; small boats and outboard motors ; all types 

 of limnological equipment. 



INSTRUCTIONAL PROGRAM: Limnology, fresh-water 

 zoology, and fresh-water botany for students of Copen- 

 hagen University. 



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

 cians. 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 



leaders: 

 Respiration of invertebrates (Kaj Berg) 

 Productivity of bottom fauna (Petuer M. Jonasson) 

 Primary productivity of phytoplankton (Hans 



Mathiesen) 

 Primary productivity and milieu of oligotrophic lake 



(Guennar Nygaard) 

 Arctic plankton (Ulrik Roen) 

 Flagellates (Jorgen Kristiansen) 

 Spring fauna (Jens Thoruep) 

 Higher vegetation of lakes, and phosphates in lakes 



(Siguerd Olsen) 



'T" 



'£ 



'Wki. 







Respiration of invertebrates of brackish-water (Jorgen 



Luembye) 

 Bottom sediment (Kaj Hansen) 

 Temperature and fauna of running water (Bent Lauege 



Madsen) 

 Hydrography (Aage Rebsdorf) 

 PUBLICATIONS ISSUED: Hydrobiologia (regularly pub- 

 lished journal). 



Koebenhavns Un'tversitets, 

 Laboratorhtm 



Marinbiolo ^isk 



I-F.RSKVANDS-m01.Qt,ISKE LABORATORIUM, COPENHAGEN 

 UNIVERSITY 



COPENHAGEN UNIVERSITY, MARINE BIOLOGICAL 

 LABORATORY 



POSTAL address: Helsingoer, Danmark(Elsinore, Den- 

 mark). 



EXECUTIVE OFFICER: Gunnar Thorson, Professor of 

 Marine Biology. 



YEAR founded: 1958. 



SCOPE OF activities: Unrestricted research on ecology 

 of marine invertebrates, general marine biology, plank- 

 ton studies, bottom ecology; graduate and undergrad- 

 uate instruction. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Oeresuend (the 

 Sound), connecting the Baltic with the Kattegat and 

 the North Sea ; sandy and silty beaches, estuarine con- 

 ditions, brackish, shallow bays, two-layered system in 

 Oeresuend (brackish 1-15 m; normal oceanic salinity 

 below to 45 m). 



PROVISIONS FOR VISITING SCIENTISTS: Research and 

 living space for 4-6 visitors in all months except June 

 through August; fees charged for research space. 



MAJOR RESEARCH AND TEACHING FACILITIES: Small, 



growing library; small aquarium tanks, a few large 

 indoor tanks; research collections from the Oeresuend 

 available at Universitets Zoologiske Museum, knowl- 

 edgeable taxonomists available; small machine and 

 wood shop, but better facilities available nearby; small 

 boats, one 45 ft power vessel, Ophelia: specially built 

 trawling, dredging and bottom sampling equipment. 



INSTRUCTIONAL PROGRAM: Undergraduate summer 

 courses in marine biology for students from Lund Uni- 

 versity (Sweden); graduate course in marine ecology 

 each summer for students from Copenhagen Univer- 

 sity; special short courses in marine ecology for grad- 

 uate students from all of Scandinavia. 



SIZE OF staff: Four at professional level; 6 techni- 

 cians. 



important species available for laboratory 

 studies: 

 Mollusca: Mytilis ed/dis, Cardiiim edule, Bnccinnm 



undattim 

 Echinodermata: As/erias rubens, Ophiocoma nigra, 



Psaiinnechinus miliaris. Aslropeclen irregularis 

 Polychaeta: Terebellides sirnemi 



