NORTH DAKOTA 

 Game and Fish Department 



1. Statewide Fisheries Investigations 



A program to niap the lakes of North Dakota as a basis for fisheries man- 

 agement. Chemical and biological investigations are carried out on natural 

 lakes, artificial reservoirs, and stock ponds with emphasis on factors re- 

 sponsible for existing populations. This includes evaluation of hatchery plant- 

 ings. Determination of needs for establishnnent of improved fisheries is also 

 considered. 



Statewide; began July 1953, continuing; $18,250; Dale L. Henegar, Leader; 

 reports available. 



Address inquiries to: Dale L. Henegar, North Dakota Game and Fish 

 Department, Bismarck, North Dakota. 



2. Garrison and Snake Creek Fisheries Investigations 



This is a program to carry out intensive investigations in the Garrison 

 and Snake Creek Reservoirs. The information so gathered will serve as the 

 basis for future management of both reservoirs. Because neither of the reser- 

 voirs will attain maximum pool levels during the duration of the project it is 

 contemplated that additional work will be carried out on contributing areas in 

 the two watersheds. 



Began July 1953, continuing; $9,500; Louis Carufel, Leader; reports 

 available. 



Address inquiries to: Dale L. Henegar, as in No. 1 above. 



North Dakota Agricultural College 



Life Cycle Studies of a Calanoid Copepod Population (Diaptomus siciloides) 



This copepod population is being studied to obtain information on the follow- 

 ing: Time of egg hatching in spring; duration of each instar; duration of each 

 generation; number of generations; time of egg production in each generation; 

 number of eggs, total and per female; reproductive activities: Time, intensity, 

 duration; growth, as determined by length measurements and weight of each 

 instar; mortality; grazing of the phytoplankton where this is discernible; to 

 determine whether quantity of food is limiting at any time; cell volume of the 

 phytoplankton, number and kind of algae; chlorophyll content and carotinoids; 

 photosynthesis, to determine basic productivity directly. Computation of the 

 photosynthetic efficiency of the algal population. The following environmental 

 factors are measured at the same time for the entire season: temperature, air 

 and five depths in the lake; transparency (Secchi disc); phosphate, as free 

 PO4; alkalinity; and pH. 



National Science Foundation cooperating; Detroit Lakes area, Becker 

 County, Minnesota; began April 1955, to close July 1957; $2,850; Gabriel W. 

 Comita, Leader. 



Address inquiries to: Gabriel W. Comita, Department of Zoology, North 

 Dakota Agricultural College, Fargo, North Dakota. 



OHIO 



Department of Natural Resources 



1. Anglers' Facilities 



This project involves construction of parking lots, boat launching ramps, 

 sanitary facilities, wells, access roads, and fishing piers. 



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