Poland 



153 



nology of intermittent and periodic, natural and arti- 

 ficial water bodies. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Intermittent and 

 periodic, natural and artificial bodies of water. 



PROVISIONS FOR VISITING SCIENTISTS: Space for 4 visi- 

 tors; no fees charged; living quarters available nearby. 



MAJOR RESEARCH FACILITIES: Very extensive library; 

 small aquarium tanks; machine and wood shop, skilled 

 shop workman available. 



SIZE OF STAFF: Ten at professional level; 6 technicians. 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 

 STUDIES: 



Chlorophyceae: Coleochaele spp. and other periphy- 



ton algae 

 Annelida: Hirtido med'n'incdh, Haeinopsii saiigui- 



siiga 

 Gastropoda: Planorbis pLiiiorhis, Corel us corneas, 



Limnaea slagnalis 

 Insecta: Lestes sponsa larvae, Lesles nynipha larvae, 



Coenagrion hastiilatum larvae (Odonata), Ciilex sp., 



Aiochlonyx (Diptera) 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 

 LEADERS: 



Hydrophysiology (metabolism and dessication) of 

 Invertebrata (Romuald Klekowski) 



Environmental factors (hydrochemistry and hydro- 

 physics) (J. Paschalski) 



Hydromicrobiology (E. Fischer) 



Biology of dragon fly larvae (Z. Fischer) 



Biology of Nematodes (W. Chodorowska) 



Biology of Copepoda (M. Wierzbicka) 



Biology of Trematoda, ecology of water stages of 

 parasites (E. Styczynska-Jurewicz) 



Biocoenology (succession) ; biology of Turbellaria 

 (A. Chodorowski) 



Algology, biology of periphyton (H. Wysocka- 

 Bujalska) 



Biochemistry of organic matter in water (A. 

 Dowgiallo) 



Stacja Hydrobiologiczna 



HYDROBIOLOGICAL STATION AT MIKOLAJKI 



POSTAL ADDRESS: Mikolajki kolo Mragowa. 

 EXECUTIVE OFFICER: Andrzej Szczepanski, Chief of 

 Station. 



YEAR FOUNDED: 1951. 



SCOPE OF activities: Unrestricted research on general 

 limnology of the Masurian Lakes district. 



SEASON OF OPERATION: All year. 



physical environment accessible: Research and 

 living space for 10 visitors; no fees charged for re- 

 search space. 



MAJOR research FACILITIES: Very extensive library 

 at the institute in Warsaw; small aquarium tanks; 

 machine and wood shop; vessels, 11m and 21m LOA. 



SIZE OF STAFF: Four at professional level; 5 techni- 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 

 STUDIES: 



Lamellibranchiata: Dreissend polyniorpha 

 Gastropoda : Viv'iparus fasciatits 

 Diptera: Claoboriis crystallinus 

 Trichoptera : Aiolttnna angustata 

 Crustacea : My sis relicta 



Pisces: Albtirnus alhiirnus, Perca fluv/atilis, and other 

 fishes 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 



LEADERS: 



Energy balance of lakes (Andrzej Szczepanski) 

 Regional limnology (Andrzej Szczepanski) 

 Diatomic and Si-balance (Z. Malanowski) 

 Stability of water bodies in lakes ( W. Szczepanska) 

 Phytosociology of waterplants (B. Soiinska) 



Instytut Rybactua Srodladouego 



INSTITUTE OF INLAND WATER FISHERIES 

 POSTAL ADDRESS: 



Headquarters: Olsztyn-Kortowo, Polska (Poland). 

 Biologiccd Stations: 



1. Gizycko (Masurian Lakes District) 



2. Warszawa (Vistula River) 



3. Zabieniec (Experimental ponds) 



4. Oliwa near Gdansk (hatchery) 



EXECUTIVE OFFICER: Professor Dr. Stanislaw Sakowicz, 

 Dyrektor. 



SPONSORING AGENCY: Ministcrstwo Rolnictwa (Minis- 

 try of Agriculture). 



YEAR FOUNDED: 1951. 



SCOPE OF ACTIVITIES: Restricted research on the bio- 

 logical productivity of inland water as a basis of fish- 

 ery management of lakes, rivers, and carp-trout ponds. 

 Aquatic chemistry, plankton studies, aquatic plants, 

 biology of fishes, breeding of pond fishes, fishing gear 

 and fishing economics. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Masurian Lake 



INSTYTUT RYBACTWA SRODLADOWEGO 



