Finliuid 



65 



oratory is carried out at the Tvaerminne Zoological 

 Station during the summer where all the Station facili- 

 ties are available. The 151 ft LOA research vessel, 

 Araiida, of the Institute is also used by the Laboratory. 

 SIZE OF STAFF: Three part-time at professional level. 

 major current research projects and scientific 

 leaders: 

 Population dynamics of bivalve Maconui hdliica ( Sven 



Segerstraele) 

 Hydrographical and biological changes in a recently 

 closed bay Gennarbyviken on south coast of Fin- 

 land (Kalle Purasjoki) 

 PUBLICATIONS ISSUED: MeveHtutkniiuslmtoksen jul- 

 kaisuja (official journal of the Institute of Marine 

 Science) 



Turun Yliopisto, Saaristomeren Biologineri 

 Asenia 



UNIVERSITY OF TURKU. MARINE BIOLOGICAL 

 STATION 



POSTAL ADDRESS: 



Summer; Lohm, Suomi (Lohm, Finland). 

 Winter; Turun, Suomi (Turku, Finland). 

 EXECUTIVE officer: Professor Paavo Voipio, Director 

 of the Station, University of Turku, Turun, Suomi. 



YEAR FOUNDED: 1958. 



SCOPE OF activities: Unrestricted research in general 

 marine zoology and botany of brackish water; under- 

 graduate instruction. 



SEASON OF operation: June 1 to August 31 at the 

 Lohm Station. 



PHYSICAL environment ACCESSIBLE: Northern Baltic 

 Sea; sandy and silty beaches, rock and gravelly shores, 

 and brackish water. 



provisions for visiting scientists: Research and 

 living space for 1-2 visitors; no fees charged for re- 

 search space. 



MAJOR research AND TEACHING FACILITIES: Univer- 

 sity library; running sea and fresh-water, small aquar- 

 ium tanks; small boats and outboard motors. 



INSTRUCTIONAL PROGRAM: General marine zoology 

 and botany. 



SIZE OF staff: One or two at professional level; 1 

 technician. 



important species available for laboratory 

 studies: 

 Mollusca : Mylilus edulis 

 Polychaeta : Nereis diversicolor 



Crustacea: Aselliis aqiialiciis. Mesidolhea entomon 

 and other amphipods and isopods. 



major current research projects and scientific 

 leaders: 

 Survey of brackish water fauna (Paavo Tulkki) 

 Behavior.i! salinity reactions (Kari Lagerspetz) 

 Acclimatization to salinity and temperature in iWytiliis 

 (Kari Lagerspetz) 



Helsingin Yliopisto, Tvaerminnen Elaeintieteel- 

 linen Asema 



UNIVERSITY OF HELSINKI, TVAERMINNE ZOOLOGI- 

 CAL STATION 



POSTAL address: From September 15 to May 14: P. 



Rautatiekatu 13, Helsinki, Finland. From May 15 to 



September 14: Tvaerminne. 

 EXECUTIVE officers: Professor Pontus Palmgren, 



Director. Dr. K. Purasjoki, Manager. 

 YEAR founded: 1902. 

 scope of actfvities: Unrestricted research in zoology 



and botany, especially in brackish water; graduate and 



undergraduate instruction. 

 season of operation: May 15 to September 15 at 



Tvaerminne. 

 PHYSICAL ENVIRONMENT ACCESSIBLE: Baltic Sea, 



outermost part of the Gulf of Finland; sandy and 



silty beaches, rocky and gravelly shores, and brackish 



sea. 

 PROVISIONS FOR VISITING SCIENTISTS: Research and 



living space for 5 visitors; fees charged for research 



space. 



MAJOR RESEARCH AND TEACHING FACILITIES: Moder- 

 ately complete library; running sea and fresh-water, 

 small aquarium tanks ; small boats and outboard 

 motors, power vessels, 29 ft LOA, Esox, and 24 ft 

 LOA, Perca. 



INSTRUCTIONAL PROGRAM: Hydrobiology (especially 

 brackish water) and aquatic fauna and flora. 



SIZE OF STAFF: Two at professional level; 2 techni- 

 cians. 



important species available for laboratory 

 studies: 

 Amphipoda: Gammarris sp. 



Pisces: Gasterosleus acideatiis, Phoxiinis iiphyit, 

 Pleiironecles flesus, etc. 



fer^.- 15i^ 



TVAERMINNEN ELAEINTIETEELLINEN ASEMA, HELSINGIN 



