. Commercial fisheries review. Fisheries; Fish trade. 22 COMMERCIAL FISHERIES REVIEW Vol. 23, No. 2 fishing vessel Oregon on December 4, 1960. The primary objective of this third cruise of a series was to assess the grounds south and east of the area (see chart) usually worked by the north Gulf industrial fish fleet in Decem- ber. A secondary objective was to delineate and chart foul-bottom areas that are not in- dicated on navigation charts. iTrawling operations were conducted round- the-clock with 71 drags completed in the 4- to 225-fathom depth range. Geographical positions are indicated as
. Commercial fisheries review. Fisheries; Fish trade. 22 COMMERCIAL FISHERIES REVIEW Vol. 23, No. 2 fishing vessel Oregon on December 4, 1960. The primary objective of this third cruise of a series was to assess the grounds south and east of the area (see chart) usually worked by the north Gulf industrial fish fleet in Decem- ber. A secondary objective was to delineate and chart foul-bottom areas that are not in- dicated on navigation charts. iTrawling operations were conducted round- the-clock with 71 drags completed in the 4- to 225-fathom depth range. Geographical positions are indicated as day and night drags on the chart. Commercial quantities of industrial fish were taken between 4 and 26 fathoms in the area utilized by the industrial fishery. Best fishing was found in 16 fathoms south of Dauphin Island where a 1-hour drag pro- duced 6,000 pounds of croakers (Micropogon undulatus) and spot (Leiostomus xanthurusK Other drags in the area produced catches ranging up to 3,000 pounds per Commercial-size catches in areas not utilized by the fishery were confined to the 35- to 42-fathom depth range to the south and in 20 fathoms to the east. Catches in those areas ranged as high as 3,000 pounds per one-hour tow and consisted mainly of croakers (maximum depth limit 20 fathoms), spot (averaging 3 to the pound), and white sea trout (Cynoscion nothus). Drags beyond Ithe 40-fathom curve and east of 87°35' west were generally unproductive. There appeared to be no substantial difference in production in day or night drags. Bottom conditions in the area of commer- cial fishing were generally suitable for con- ventional trawl gear with the exception of the broken-bottom areas shown on the chart. Foul bottom was encountered to the southeast and consisted of heavy rock formations (also noted on the chart). Depth-recorder indications of midwater schools were'notably absent during this pe- â riod. The absence of schools is possibly at- tributable to the unseasonally wa
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