248 United States of America 



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

 cians. 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 



STUDIES : 

 Pisces: Salveliiius jontiiialis, S. namaycush, Sal mo 



triitla, S. gairduerii irideus. (These species are all 



reared at the Laboratory) . 

 major current research projects and scientific 



leaders: 

 Radio-isotope tracer studies (Henry A. Podoliak) 

 Nutrition and physiology (Arthur M. Phillips, Jr.) 

 The chemical composition of trout blood (Henry A. 



Booke) 

 The metabolism of trout (Hugh A. Poston) 

 The effect of size on the growth rate of trout (Earl 



Pyle) 



Fish Control Laboratory 



POSTAL address: P. O. Box 862, Riverside Park, 

 LaCrosse, Wisconsin, USA. 



executive OFFICER: Dr. Robert E. Lennon, Director. 



year founded: 1959. 



SCOPE OF ACTIVITIES: Restricted research on chemical, 

 biological and electrical agents and methods for the 

 control of undersirable fishes in fresh-waters. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Mississippi River 

 and nearby sloughs and impoundments; eutrophic lake. 



PROVISIONS FOR VISITING SCIENTISTS: Space for four 

 visitors; living quarters nearby; no fees charged for 

 research space. 



MAJOR RESEARCH FACILITIES: Small library; large out- 

 door ponds and tanks, small aquarium tanks, concrete 

 holding tanks, fiber glass troughs; small private re- 

 search collections of local fishes; machine and wood 

 shop, skilled shop workman available; small boats and 

 outboard motors. 



SIZE OF STAFF: Five at professional level; 4-5 tech- 

 nicians. 



USH LONiKOL LAUOKAIOKV. LACROSSE 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 



studies: There is an abundance of both warm-water 

 and cold-water fauna and flora in the Upper Mis- 

 sissippi River area. Through the cooperation of the 

 States of Iowa, Wisconsin and Minnesota, a great 

 variety of plants and animals is available for experi- 

 mental studies. 



Fish-Pesticide Research Laboratory 



POSTAL ADDRESS: Building 45, Denver Federal Center, 

 Denver 25, Colorado, USA. 



EXECUTIVE officer: Dr. Oliver B. Cope, Chief. 



YEAR founded: 1959. 



SCOPE OF ACTIVITIES: Restricted research on investiga- 

 tions of effects of economic poisons on fish. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: Mountain 



streams and lakes (both eutrophic and oligotrophic) of 

 Colorado. 



PROVISIONS FOR VISITING SCIENTISTS: Space for 2 

 visitors; no fees charged; living quarters available 

 nearby. 



MAJOR RESEARCH FACILITIES: Small library; large out- 

 door ponds and tanks, small aquarium tanks; research 

 and identified reference collection of Colorado aquatic 

 invertebrates ; machine and wood shop ; small boats and 

 outboard motors. 



SIZE OF STAFF: Six at professional level; 2 technicians. 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 

 STUDIES: 



Pisces: Salmo gairdneri 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 

 LEADERS: 



Acute toxicities of pesticides to fish (Walter R. 



Bridges) 

 Pest control operations (Walter R. Bridges) 

 Physiology and pesticides (Burton Kallman) 



North Central Reservoir Investigations 



POSTAL address: p. O. Box 139, Yankton, South 



Dakota, USA. 

 LOCATION: Near Sioux City, Iowa. 

 EXECUTIVE officer: Norman G. Benson, Chief. 

 YEAR founded: 1961. 

 scope of activities: Research on relationships of 



population dynamics of fish and limnology of large 



reservoirs to water fluctuations and exchange rate. 

 SEASON OF operation: All year. 

 PHYSICAL environment ACCESSIBLE: Large mainstem 



reservoirs at Missouri River. 

 provisions for VISITING SCIENTISTS: Ofiice space, field 



equipment and limited laboratory space. 

 major research facilities: Library; laboratory and 



shop; boats; fish and limnological collecting gear; 



ponds. 

 SIZE OF STAFF: Five at professional level. 



