546 U. S. BUREAU OF FISHERIES 
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 1937, inclusive, 
while data for the shad fishery of the Potomac River are available 
for 1896, 1901, 1904, 1909, 1915, and from 1919 to 1937, inclusive. 
Statistics of the alewife fishery of the Potomac River are available 
for 1896, 1909, 1915, and from 1919 to 1937, inclusive. 
Pacific halibut fishery.—Statistics of the Pacific halibut fishery are 
obtained by the Bureau’s agent in Seattle, aided by Bureau representa- 
tives in Alaska and the International Fisheries Commission. The 
fleet classification has been arbitrarily applied by meluding in the 
“Washington fleet’’ all United States and Alaska vessels that land 
more than half of their catch in that State. All other United States 
and Alaska vessels of the halibut fleet are included in the ‘Alaska 
fleet.” Monthly and annual statistical bulletins are available on this 
fishery, being published along with the statistics of the landings of 
fishery products at Seattle, Wash., and detailed statistics are. pub- 
lished in the annual reports of the Division. Statistics of the landings 
of halibut at Pacific coast ports have been collected since 1925. 
Canned fishery products and byproducts —Beginning in 1921, the 
Bureau has made annual surveys for statistics of the canned fishery 
produets and byproducts imdustries of every section. ‘These are 
begun the first week in January of each year for statistics of the pro- 
duction in the preceding year. The surveys usually occupy 6 to 9 
weeks’ time. During this period the Bureau obtains by mail, so far 
as possible, the production of canned fishery products or byproducts 
from each plant in the United States engaged in this business. Where 
it is impossible to obtain reports by mail the report is obtained by 
personal visit by the Bureau’s agents. They obtain statistics of the 
production and value of the production for each commodity. Statis- 
tics of the canned fishery products and byproducts produced in Alaska 
are received on the same statements obtained by the Bureau that 
include statistics of general fishery operations. 
An annual statistical bulletin is issued on this trade, and detailed 
statistics of the output are published in the annual reports of the 
Division. In addition to the data obtained on the output of these 
products annually since 1921, data also usually were obtained prior 
to 1921 for the years the various sections were surveyed. 
The value shown for canned products constitutes the gross amount 
received by the packer at the production point, no deductions being 
made for commission or expenses. 
Packaged-fish trade.-—Complete statistics of the annual production 
and value of fish packaged in the United States are obtained as a part 
of the survey for the statistics of the canned fishery products and by- 
products industries. These statistics are released in bulletin form 
annually and detailed statistics are published in the annual reports 
of the Division. Statistics of the production of packaged fish are 
available for 1926 and the years from 1928 to 1937, inclusive. 
Cold-storage holdings of fish.—An arrangement has been made with 
the Bureau of Agricultural Economics, Department of Agriculture, 
whereby statistics of the cold-storage holdings of the various species 
of fish, by sections of the United States are furnished to this Bureau 
