Excerpt from January to April Distribution of the Common Shrimp on the South Atlantic Continental Shelf

Operations consisted of a series of 30-minute hauls with the try-net usually on a zig-zag course between the shore and the loo-fathom line, but sometimes along a depth contour. In working these trawl lines the vessel was not stopped while the trawl was being hauled in, emptied, and put over again, but continued on course at slow speed. This system of trawling resulted in a continuous series of trawl hauls, with breaks usually representing the time required for taking up the trawl and setting it out again. In waters of 10 to 12 fathoms, the entire process of hauling up, emptying, and putting the trawl into operation again was accomplished in about 7 to 10 minutes. In deeper water the time required was in proportion to the depth. A trawl was dragged 3 to miles during the 30-minute haul period, depending on weather and currents.ern Gulf of Mexico, are deposited in the u.s. National Museum.

Starting in January 1940, near Fort Pierce, Fla., a series of zig-zag trawl lines, extending from just off the beaches to the 100 fathom line, was made up the coast to Cape Hatteras, nc. A second series was made from Cape Hatteras south to about Cape Canaveral, Fla over areas not covered by the first run. From January to April, 431 trawl hauls were made, representing about 1, 300 miles of actual trawling. Approximate locations of the individual hauls are shown in figure 1.

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