MARYLAND (Cont. ) 



Biological Laboratory; began Summer 1949, to close August 1953; Romeo Man- 

 sueti. Leader. 



Address inquiries to: Romeo Mansueti, as in No. 5 above. 



12. Maryland Potomac River Inland Fishery Investigations 



The objectives are: (a) To determine the peak of smallmouth bass spawn- 

 ing season and related information pertaining to associated species; (b) to 

 study gonad development through collections for the purpose of relating this 

 information to objective one; (c) to study age, growth, and condition factors; 

 (d) to make population analyses through migration and quantative and qualita- 

 tive examination of the smallmouth bass fishery; (e) to estimate fishing pressure 

 and total harvest of fish in a 2-mile radius of Lander, on the Potomac River. 



University of Maryland cooperating; Montgomery, Frederick, Washington, 

 and Allegany Counties; began May 1956, to close June 1957; $12, 993; Albert E. 

 Sanderson, Jr. , Leader. 



Address inquiries to: Albert E. Sanderson, Jr. , Biologist, Beaver Creek 

 Hatchery, R. D. No. 1, Hagerstown, Maryland. 



13. An Investigation of Striped Bass 



The objectives are: (1) To compare the contribution of each area to the 

 total of the striped bass population; (2) to analyze the effect of licensed and 

 unlicensed net fishing in spawning areas; (3) to determine the upper and lower 

 limits of striped bass spawning in each of the major rivers; (4) to determine 

 the times at which spawning begins and ends and the peaks of spawning intensity 

 in major rivers of Maryland; (5) to determine the migration patterns of striped 

 bass in and from Maryland waters; (6) to deternnine whether there is any merit 

 in protecting striped bass over 15 pounds; and (7) to determine the extent of 

 predation of each size category on other commercial species. 



University of Maryland and U. S. Fish and Wildlife Service cooperating; 

 Chesapeake Bay and Esterian Rivers; began June 1956, to close July 1957; 

 $14, 000; Edgar H. Hollis, Leader. 



Address inquiries to: Edgar H. Hollis, Department of Tidewater Fisher- 

 ies, State Office Building, Annapolis, Maryland. 



University of Maryland 



1. A Study on the Gonads of the Striped Bass, Roccus saxatilis, in Chesapeake 

 Bay 



The purpose of the study is to determine the potential spawning of the 

 striped bass by egg size and egg counts, and if possible to determine the 

 relative viability of the large eggs in different sized fish. 



Maryland Department of Tidewater Fisheries cooperating; Chesapeake 

 Bay; began August 1955, to close June 1957; J. Frances Allen, Leader. 



Address inquiries to: J. Frances Allen, Department of Zoology, Univer- 

 sity of Maryland, College Park, Maryland. 



2. A Study of the Endocrine Organs of the Striped Bass, Roccus saxatilis 



A study of the morphology and histology of the thyroid, pituitary and 

 gonads. This is to include the use of certain histochemical techniques to 

 determine if the physiological state of the cells can be estinnated. The series 

 to be used will include as wide a size range of fish as can be obtained as well 

 as seasonal samples. 



The objectives include study of the development of the above-named struc- 

 tures including size, age and sex variations, and seasonal cycle as can be 

 correlated from the above structures. These are to be interpreted in terms 

 of the reproductive potential of the various size fish if possible. 



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