Nicholson, William R. 



1972a. Fishing pressure and its influence on Monday catches of 



Atlantic menhaden in the Chesapeake Bay purse-seine fishery. 

 Chesapeake Science, vol. 13, no. 3, p. 215-218. 



Until about 1955 Atlantic menhaden purse-seine catches 

 in Chesapeake Bay were distributed equally among week days 

 from Monday to Friday. From 1956-61 the catch landed on 

 Mondays averaged about 22 percent of the weekly totals. As 

 fishing pressure increased and the population decreased after 

 1961, the percentage of the catch landed on Mondays rose, 

 averaging about 34 percent of the weekly total. The in- 

 crease in Monday catches is attributed to greater availability 

 of fish after reduced fishing over the weekend. 



Nicholson, William R. 



1972b. Population structure and movements of Atlantic menhaden, 



Brevoortia tyr annus , as inferred from back-calculated length 

 frequencies. Chesapeake Science, vol. 13, no. 3, p. 161-174. 



Conclusions from analysis of back-calculated fork lengths 

 sampled from 1955-64: (1) mixing of menhaden of all ages 

 from all areas occurs south of Cape Hatteras during the 

 winter, (2) at the time of first annulus formation in early 

 spring, age-1 menhaden segregate along the coast by size, 

 which increases from south to north, (3) all menhaden do 

 not return to the same area they occupied the previous year, 

 (4) for normal year classes, recruitment into the fishable 

 population may not be complete until late in the second 

 summer of life. 



Nicholson, William R. , and Joseph R. Higham, Jr. 



1964a. Age and size composition of the menhaden catch along the 



Atlantic coast of the United States, 1959 with a brief review 

 of the commercial fishery. U.S. Fish and Wildlife Service, 

 Special Scientific Report - Fisheries no. 478, 34 p. 



A review of the fishery for 1959 with distribution of 

 purse-seine sets, length and weight by sex for four 

 geographical areas and the North Carolina fall fishery. 



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