. Commercial fisheries review. Fisheries; Fish trade. 40 COMMERCIAL FISHERIES REVIEW Vol. 20, No. 1 RED HAKE SAMPLES COLLECTED AND GEAR TESTED IN BLOCK ISLAND AREA (M/V T-79 Cruise 177^ The Service's small research vessel T-^ occupied trawling stations in the Block Island area between October 15-17, 1957, in search of scup (porgy) for tagging, samples of red hake or ling for biological studies, and to test equipment on the vessel. Although no scup were caught, some excellent samples of red hake were caught for age and stomach-content studies. The fishing gear worked well. ***** YELLOWTAIL FLOU
. Commercial fisheries review. Fisheries; Fish trade. 40 COMMERCIAL FISHERIES REVIEW Vol. 20, No. 1 RED HAKE SAMPLES COLLECTED AND GEAR TESTED IN BLOCK ISLAND AREA (M/V T-79 Cruise 177^ The Service's small research vessel T-^ occupied trawling stations in the Block Island area between October 15-17, 1957, in search of scup (porgy) for tagging, samples of red hake or ling for biological studies, and to test equipment on the vessel. Although no scup were caught, some excellent samples of red hake were caught for age and stomach-content studies. The fishing gear worked well. ***** YELLOWTAIL FLOUNDERS AND INDUSTRIAL SPECIES SAMPLED OFF NAU- SET BEACH (T-79 Cruise 18): During a one-day (October 30, 1957) trawling trip made in 25-30 fathoms off Nauset Beach (Mass.), lengths, weights, scales, and oto- liths were collected from yellowtail flounders (Limanda ferruginea) by the Bureau's North Atlantic Fishery Investigations small research vessel T^-79. In addition, spe- cies utilized for fish meal were measured and scale samples collected. Samples of whiting and 0-group haddock were preserved for other research projects. Three tows were made with a 45- by 65-foot otter trawl with a ;|-inch liner in the cod end. North Atlantic Herring Research DRIVING HERRING SCHOOLS WITH COMPRESSED AIR CURTAIN: A second series of herring driving trials using an "air curtain" was made during the last week in October 1957 by the Boothbay Harbor, Maine, exploratory fishing staff of the U. S. Bureau of Commercial Fisheries. The gear used was essentially the same as that used in earlier trials except that 700 feet of perforated plastic pipe were used instead of 500 as in the earlier work and a larger compressor (rated at 130 cubic feet per minute at 75 pounds per square inch pressure) was employed to sup- ply the air. As in the previous work observations were made from an airplane and from the water's surface, of herring schools and the effect of the air curtain upon them. The first tri
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