318 U. S. BUREAU OF FISHERIES 



from Alaska or Canada, or landings made by the halibut fleet. Sta- 

 tistics of these landings at Seattle are released monthly and annually 

 in bulletin form and detailed data are published in the annual reports 

 of this Division. Statistics of the landings by fishing vessels at 

 Seattle have been collected since June 1915 and certain data on 

 products received by Seattle wholesale dealers since December 1915. 



Statistics on the landings of fish at New York City are obtained 

 from J. H. Matthews, executive secretary of the Middle Atlantic 

 Fisheries Association, New York, N. Y. During the years when one 

 of the large trawUng companies operated from Groton, Conn., the 

 landings at that port were collected by the Bureau's agents and in- 

 cluded with the landings at New York City in pubhshed data. 

 Monthly bulletins including these landings are not issued. However, 

 a summary of the year's activities is published in the annual reports 

 of the Division. Statistics of the landings at either one or both of 

 the above ports are available since 1922. 



Statistics of the fishery products handled at the municipal wharf, 

 Washington, D. C, are reported to the Bureau by agents of the 

 Health Department in Washington. They are not published in 

 bulletin form, but a summary of the year's activities is published in 

 the annual reports of the Division. Data on products handled at the 

 municipal wharf are available since 1921. 



Atlantic mackerel fishery. — Statistics on the catch by the Atlantic 

 mackerel fleet are obtained by combining the figures of mackerel 

 landed at Boston and Gloucester, Mass., and Portland, Maine, with 

 those obtained by Bureau agents, who in recent years have been 

 stationed at other Atlantic ports where mackerel are landed. These 

 agents obtain data on the volume of mackerel landed in a manner 

 similar to that used to obtain figures on the landings by fishing 

 vessels at the three New England ports. The figures include only 

 the catches made by purse seine and drift gill net craft and are not 

 complete for craft of under 5 net tons capacity using this type of gear. 

 Statistics of this fishery appear only in the annual reports of this 

 Division, although the landings at the principal New England ports 

 appear in the montlily and annual bulletins published for those 

 ports. Statistics of this fishery are available from 1905 to 1933, 

 inclusive. 



Shad and alewife fisheries. — Owing to the importance of the Hudson 

 and Potomac Rivers in the production of shad, surveys for statistics 

 of the catch, value of the catch, and operating units are made annually. 

 On the Potomac River similar statistics also are obtained for the ale- 

 wife fishery. 



The survey in the Potomac River is conducted entirely by Bureau 

 agents in a manner similar to that employed in the collection of the 

 usual fishery statistics. The survey of the Hudson River shad fishery 

 also is conducted by Bureau agents although considerable data is 

 obtained from the New York State fishery agency for the catch in 

 waters of tliis State. 



Statistics of the shad and alewife fisheries are not published sepa- 

 rately in bulletin form, but a summary of the year's activities is 

 published in the annual reports of the division. 



Statistics of the shad fishery of the Hudson River are available for 

 1896, 1897, 1898, 1901, 1904, 1910, and from 1915 to 1933, inclusive, 

 while data for the shad fishery of the Potomac River are available 



