. Commercial fisheries review. Fisheries; Fish trade. 28 'Delaware' Continues Lobster Explorations With Pot (Trap) Gear BCF's Delaware returned to Gloucester, Mass., on June 27 after completing the second in a series of no rt he r n lobster (Homarus americanus) investigation cruises. (Cruise 68-5, May 24-June 27.) Cruise 68-5 had 3 parts: 1) grappling for pot gear lost during March-April lobster explorations (Cruise 68-3); 2) continued ex- plorations in Continental Slope area; 3) trap- ping explorations in shallow water areas within Gulf of Maine and on Georges Bank. Grappling Gear The loss of
. Commercial fisheries review. Fisheries; Fish trade. 28 'Delaware' Continues Lobster Explorations With Pot (Trap) Gear BCF's Delaware returned to Gloucester, Mass., on June 27 after completing the second in a series of no rt he r n lobster (Homarus americanus) investigation cruises. (Cruise 68-5, May 24-June 27.) Cruise 68-5 had 3 parts: 1) grappling for pot gear lost during March-April lobster explorations (Cruise 68-3); 2) continued ex- plorations in Continental Slope area; 3) trap- ping explorations in shallow water areas within Gulf of Maine and on Georges Bank. Grappling Gear The loss of 3 strings (trawls) of lobster traps during the initial of fs ho r e trapping cruise demonstrated the need for an effective method to retrieve such lost gear. A special effort was made between the 2 cruises (68-3 and 68-5) to design and assemble equipment suitable and dependable for this purpose. The staff of the Gloucester Exploratory Fishing and Gear Research Base believes the exist- ence of proved grappling will help to minimize gear losses during future opera- tions. It will significantly encourage the developing offshore lobster trapping fishery. Several improvised grapnels were tried during the latter part of the March-April cruise immediately after the traps were lost. None was successful. The gear for the second cruise was designed to overcome the short- comings of the first devices. The new grapnels were made from five 12-foot lengths of g-inch galvanized steel chain to which steel hooks were attached. The chain sections were spaced along and attached at one end to a 10-fathom length of 4-inch wire rope. Each chain was fitted with 4 single-prong hooks spaced along its length and a terminal 4-prong grapnel. The single- prong hooks were arranged to spiral around the chain and were individually attached to the chain by welds, which traversed 3 succes- sive chain links. All grapnel prongs were made from |-inch round steel stock. Grappling Operations Part I, Crui
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