82 



C0ii"I3RCLAL FISESRLLS ISVISJ 



Vol. 13, Ko. 4 



THESE PUBLICATIONS ARE NOT AVAI LABLE FROM THE FISH AND Wl LDLIFE 

 SERVICE , BUT USUALLY MAY BE OBTAINED FROM THE AGENCIE S ISSUING THEM . 



amendments to conservation laws made during the 

 year. 



Plankton Characteristics at Cronulla , New South Wales . 

 19Zt3 -46, by Keith Sheard, Bulletin No, 246 (Div- 

 ision of Fisheries - Report Ko. 17), 23 p., illus. 

 Commonwealth Scientific and Industrial Research 

 Organization, Melbourne, Australia, 1949, Reports 

 on the general plankton characteristics, water tem- 

 perature records, and pelagic fish occurrences at 

 the Cronulla onshore station, New South Wales, for 

 the period 1943-46. The author states that the 

 data sho?re similar general annual trends with con- 

 siderable variation in the detail of the pattern 

 in each year. 



Some Factors Influencing the Trends of Salmon Popu- 

 lations in Oregon , by Donald L. MoKerr.an, Donald 

 R. Johnson, and John I. Hodges, Contribution No. 12, 

 23 p., illus., printed. Oregon Fish Commission, 

 Portland, Oregon, December 1950. (Reprinted from 

 Transactions of the Fifteenth North American Wild - 

 life Conference . Wildlife Management Institute, 

 Washington, D. C, 1950.) Discusses the trend of 



salmon populations in Oregon, possible causes of 

 observed fluctuations and decline, and relation- 

 ship between fishing and population trends. 



Striped Bass Studies on Coos Bay , Oregon , in 1949 

 and 1950 , by Alfred R. Morgan and Arthur R.Gerlach, 

 Contribution No. 14, 31 p., illus., printed. 

 Oregon Fish Connission, Portland, Oregon, December 

 1950. This is a report to the Forty-Sixth Legis- 

 lature of the State of Oregon in fulfillment of 

 the directive of the Forty-Fifth Legislative Assem- 

 bly to the State Fish Commission and the State Game 

 Commission to jointly conduct a study of the striped 

 bass of the Coos Bay area. It discusses the area's 

 striped bass sport fishery; the commercial fishery 

 (history, comnercial gear, fishing areas, relation- 

 ship to shad fishery, catch per unit of effort, 

 rate of fishing and estimate of population size, 

 and ave^-age weight studies); the life history of 

 the striped bass; and conditions affecting survival. 

 Included is an economic evaluation of the striped 

 bass sport and commercial fishery and reccnmiend- 

 ations . The authors report that there is no evid- 

 ence of a decline in the striped bass population 

 in Coos Bay. 



U.S. IMPORTS OF GROUNDFISH FILLETS FOR CONSUMPTION , 1938-650 



1938 39 40 41 42 43 44 45 46 47 48 49 50 51 



