TEXAS (Cont. ) 



10. Fisheries Investigations and Surveys of the Waters of Region 8B (FA: F-6-R) 



A physical, chemical and biological inventory on those portions of the Nueces 

 River lying in Zavala, Dimmit, La Salle, McMullen, Live Oak, San Patricio and 

 Nueces Counties; on those portions of the Frio River within Zavala, Frio, La Salle, 

 McMullen and Live Oak Counties; on those portions of the Atascosa River within 

 Atascosa and Live Oak Counties; on those portions of the Guadalupe and San 

 Antonio Rivers, within Wilson, Karnes, Goliad, Victoria and Refugio Counties; 

 on Lake Corpus Christi within San Patricio and Live Oak Counties, on Falcon 

 Lake, a new reservoir built by the International Boundary Con-imission, on the 

 Rio Grande River in Starr and Zapata Counties; and on Lakes Bentsen and Lake 

 Del Orchard in Hidalgo County; creel census on Lake Corpus Christi; a check 

 on the commercial catch of rough fishes from Lake Corpus Christi; pollution 

 study to determine nature and influence on project waters; and experimental 

 spraying of water hyacinths with 2, 4-D to determine the best dosage to use on 

 FA: F-l-D. 



Began June 1953, planned for 3 years; $30,000; Luciano V. Guerra, Assistant 

 Leader. 



Address inquiries to: Alvin Flury, as in No. 2 above. 



11. Developnnent, Sheldon Reservoir, Management Area. (FA: FW-l-D) 



Building dwelling for resident biologist, office, laboratory and service 

 building; improvement of existing levee and spillway; construction of breaker 

 levees and channels; vegetative planting to prevent erosion on west boundary levee, 

 erection of signs and boundary markers; drilling well for headquarters; and ap- 

 praisal of development of the Sheldon Reservoir for future fishery development. 



Began June 1953; Dingell- Johnson share - $67,122. 



Address inquiries to: Marion Toole, as in No. 1 above. 



University of Texas 



1. Studies on the Zoogeography and Ecology of Southwestern Fishes. 



Objective of the project is to determine the distribution of the southwestern 

 fishes, especially with relation to their ecology. 



Game and Fish Commission cooperating; Oklahoma, New Mexico, Texas, 

 and Mexico; began November 1949, indefinite; $1,000; Clark Hubbs, Leader. 



Address inquiries to: Dr. Clark Hubbs, Zoology Department, University of 

 Texas, Austin, Tex. 



2. Studies on the Life Histories of Southwestern Fresh-water Fishes. 



Objectives of the project are to deternnine the breeding habits, rearing, and 

 movements of the fishes. At the present, special emphasis is placed on the 

 black tail ( Notropis venustus) and red (Notropis lutrensis) shiners and the darters 

 of the genus Etheostoma. 



Hdqrs. Austin; began February 1951, indefinite; $1,000; Clark Hubbs, Leader. 



Address inquiries to: Clark Hubbs, as in No. 1 above. 



U. S. Fish and Wildlife Service, Branch of Fishery Biology 



1. Biochemistry of the Gulf of Mexico. 



As a nneans of delinniting potentially productive fishing areas, an effort is 

 being made to establish the distributions and concentrations of nutrients and the 

 relation between these nutrients and the distributions and concentrations of fishes. 



Hdqrs. Fort Crockett, Galveston; began 1950, continuing. 



Address inquiries to: Albert W. Collier, Jr. , Chief, Gulf Fishery Investiga- 

 tions, Fort Crockett, Galveston, Tex. 



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