FISHERY INDUSTRIES OF THE UNITED STATES. 9 
them on the ground that the experiment had fully demonstrated the 
commercial value of planes in this fishery. This first thorough test 
of aviation as an adjunct to the commercial fisheries has proved of 
ereat benefit to the industry, and the purchase of planes by the fishing 
companies is being seriously considered. 
In December, 1919, as a result of arrangements between the naval 
authorities, the fishing interests, and the State commission, naval 
seaplanes were given trials at San Diego, Calif., for siete schools 
of fish. They are reported to have been of some value in locating 
schools of sardines, but their usefulness in locating albacore, tuna, and 
yellowtail remains to be more definitely established. In the summer 
of 1920 a hydroairplane was operated for a time at San Pedro, but 
was not entirely successful. A dirigible trip was also made at San 
Diego by an official of the State commission for the same purpose. 
The aviation service of the United States Coast Guard, Treasury 
Department, has shown an interest in the utility of fish spotting in 
connection with its air patrol and training, and the Bureau of Fish- 
erles is endeavoring to effect cooperation between the aviation station 
of that service at Morehead City, N. C., and the fishermen of that 
region. 
The work done has yielded results of value, but should be continued 
for the purpose of ascertaining the value of aircraft in other fisheries, 
such as mackerel, bluefish, tuna, and herring. 
NEW ENGLAND FISHERY INTELLIGENCE SERVICE. 
In the summer of 1920 the Bureau investigated the possibilities of 
securing useful information daily from keepers of certain lightships 
and lighthouses as to the presence of schooling fish, such as mackerel 
and pollock. Through the courtesy of the Director of Naval Commu- 
nications and the Commissioner of Lighthouses, the Bureau of Fish- 
eries made arrangements to have the occurrence of such fishes 
reported by the keepers of Pollock Rip, Nantucket Shoals, and Fire 
Island lightships.. This service was initiated about November 1, 
1920, messages reporting any observations madé during the preceding 
24 hours being sent by radio at noon daily from these vessels to shore 
stations and forwarded to the Bureau’s agent at Boston for dissemi- 
nation and transmittal to agents in Gloucester and Portland. It was 
appreciated that the service was being established near the close of the 
season, but it was desired to have it in efficient working order on the 
resumption of more active fishing in the spring. If the service proves 
of value it is planned to increase the number of stations from which 
reports are received. 
NOTES ON FISHING GEAR. 
The following descriptions of fishing gear employed in the Califor- 
nia fisheries have been furnished by R. A. Coleman, agent, Bureau of 
Fisheries. The use of the paranzella and lampara nets in American 
waters is practically restricted to southern California. 
PARANZELLA NET. 
The paranzella is the net chiefly used in deep water and bottom 
fishing on the California coast, especially by the large fishing com- 
panies operating with steam and power boats. This type of net (the 
