. Commercial fisheries review. Fisheries; Fish trade. FIG. 1 - VIEW OF SARDINE STOP SEtNE BEING HAULED WITH A POWER BLOCK IN THE MAINE SARDINE FISHERY. of rotation are all very easily controlled by two valves. The machine can be start- ed, stopped, or reversed by merely adjusting a valve to the proper position. If it should become necessary to remove the net from the block before the end is reached, the block can be opened like a snatch block by pulling a pin, and the net can be pulled out. Method and Area of Dem- monstrations: For purposes of demonstration, a 100-fath- om by 9-fathom purse se
. Commercial fisheries review. Fisheries; Fish trade. FIG. 1 - VIEW OF SARDINE STOP SEtNE BEING HAULED WITH A POWER BLOCK IN THE MAINE SARDINE FISHERY. of rotation are all very easily controlled by two valves. The machine can be start- ed, stopped, or reversed by merely adjusting a valve to the proper position. If it should become necessary to remove the net from the block before the end is reached, the block can be opened like a snatch block by pulling a pin, and the net can be pulled out. Method and Area of Dem- monstrations: For purposes of demonstration, a 100-fath- om by 9-fathom purse seine, minus rings and purse line, was taken aboard the Clupea. This net was run out and haul- ed back aboard as a demon- stration for seine crews and other interested parties. Demonstrations have been made in the more important fishing ports from Portland, Me., as far east as Southwest Harbor on Mt. Dessert Island. The 100-fathom seine was hauled and stacked by two men in a demonstration at Tenants Harbor in 8^ minutes. This was done without hurrying, in spite of the fact that the net was stopped several times to clear it of rockweed. A "speed run" was made for a seine crew at Stonington in which two men hauled the 100-fathom net in 5j minutes. The block was tried out in an actual stop-seine hauling operation in Burnt Cove, Deer Island, on May 28. For this operation the seine boat was tied alongside the Clupea and the "power block" swung outboard on the boom so that the seine was dropped into the seine boat. (The seine could be dropped into a dory or any other boat in this manner.) The net came aboard smoothly cUid easily in this opera- tion except when the net snagged on the bottom. It was then neces- sary to slack off the net and work the snagged net loose by hand. The catching of this snag demonstrated a need for someone to stand close by the control valve and to keep just enough power applied to haul in the net slowly so that the block will stop if the ne
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