UTAH (Cont. ) 



known concentrations of fluorides on the growth rate of the common goldfish 

 over a specific period of time and the specific action of fluorides on the organ 

 systems of goldfish are also investigated. 



U. S. Public Health Service cooperating; Logan; began September 1956, 

 to close August 1958; $16,000; William F. Sigler, Leader; reports available. 



Address inquiries to: Department of Wildlife Management, School of 

 Forestry, Logan, Utah. 



2. The Life History and Economic Status of the Carp in Utah 



This project involves study of reproduction, annual and standing crop in 

 small ponds or impoxindments, and methods of harvesting carp, other than with 

 electric shocking machines. Observations on general ecology and food and 

 feeding habits are also made. 



Headquarters - Logan; began 1952, to close 1958; $1,000; William F. 

 Sigler, Leader; reports available. 



Address inquiries to: As in No. 1 above. 



3. Some Aspects of the Limnology of the Logan River, Utah, with Special Refer- 

 ence to the Drift Algae and Periphyton 



The objectives are: (1) To determine what species of algae are free float- 

 ing in the river, (2) to determine the origin of the cells, (3) to determine the 

 abundance of the various species and how the abundance changes along the 

 river and during the year, and (4) to determine how changes in temperature, 

 turbidity, velocity, and volume of flow affect species composition and abun- 

 dance of plankton. 



The principle object of the periphyton study is the evalxiation of environ- 

 mental factors influencing the distribution, quality and abundance of peri- 

 phyton in Logan River and how they relate to sampling methods. The factors 

 to be considered are: velicity and acceleration of water currents, insulation, 

 water temperature, water chemistry, substrate roughness and composition, 

 water depth, and turbidity. 



U. S. Public Health Service cooperating; headquarters - Logan; began 

 September 1955, to close August 1957; $8,000; William F. Sigler, Leader; 

 reports available. 



Address inquiries to: As in No. 1 above. 



VERMONT 

 Fish and Game Service 



1. Fishing Investigation and Experimental Population Control of Some Vermont 

 Lakes 



Objectives of the project are to devise and evaluate methods of controlling 

 warm water fish populations without complete poisoning. 



Statewide; began January 1954; $7,600; James D. Stewart, Leader; reports 

 available. 



Address inquiries to: James D. Stewart, R. F. D. , Milton, Vermont. 



2. Fishing Access Acquisition 



The objective is to purchase in the name of the State of Vermont a small 

 tract of land on each lake and pond over 20 acres in surface area, suitable for 

 boat lavuiching and vehicle parking. 



Statewide; began October 1953, continuing; $7, 373; Roger A. Seamans, 

 Leader. 



Address inquiries to: Roger A. Seamans, Vermont Fish and Game 

 Service, Montpelier, Vermont. 



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