. California a base di pesce e selvaggina. Pesca -- California; gioco e gioco-uccelli -- California; Pesci -- California; popolazione animale gruppi; Pêches; Gibier; Poissons. Tonno bianco alalunga i fondali di pesca 75. La figura 1. Una porzione della parte orientale dell Oceano Pacifico settentrionale illustrante schematicamente nave le vie per il N. 6. ScoField (Cruise 59S4) e Hugh M. Smith (Cruise 52) tonno bianco alalunga sondaggio, 1959. Trolling ingranaggio il trolling marcia era sostanzialmente lo stesso di quello utilizzato dalla com- mercial flotta (Scofield, 1956). Selvaggina di penna japheads e maschere di osso out- dotato di ganci barbless sono stati utilizzati sulle linee di lunghezza variabile. Sette li

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. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. ALBACORE FISHING GROUNDS 75. FIGURE 1. A portion of the eastern north Pacific Ocean illustrating schematically vessel tracks for the N. 6. ScoField (Cruise 59S4) and Hugh M. Smith (Cruise 52) albacore survey, 1959. Trolling Gear The trolling gear was basically the same as that used by the com- mercial fleet (Scofield, 1956). Feathered japheads and bone jigs out- fitted with barbless hooks were used on lines of varying length. Seven lines were trolled from the N. B. Scofield. These were arranged with a 20- and 15-fathom line on each outrigger pole and 7-, 9-, and 11-fathom lines fishing from the stern. The Hugh 31. Smith trolled eight lines, two from each outrigger pole and four from the stern. Line lengths were alternately 15 and 30 fathoms (Figure 2). Trolling was done during daylight at speeds ranging from 4 to 10 knots, but averaging six to seven. Gill Nets Both vessels were equipped with 10 shackles of nylon mesh gill net constructed by the Honolulu Biological Laboratory (Graham and Mann, 1959). Each shackle, 50 fathoms long by 4 deep, consisted of mesh sizes varying from 4^ to 7^ inches stretched measure. When setting from the vessel, shackles were arranged as follows: 4^"(1), 7r(2), 6r(4), 7r(2) and 5^(1). Gill nets were set at dusk, the process requiring 30 to 60 minutes. Hauling took place at dawn the following day and required about one hour. The nets were set from the stern and hauled from the bow of the N. B. Scofield, and were both set and hauled from the bow of the Hugh M. Smith.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. California. Dept. of Fish and Game; California. Fish and Game Commission; California. Divisi