. Commercial fisheries review. Fisheries; Fish trade. 47 crabs were found primarily in the shallow depth intervals (table 2) off the Columbia River. Fish and starfish catches were rela- tively small and occurred at all depths. Trace amounts of sea pens were taken in some deep hauls. Skate egg cases were domi- nant in one haul (No. 96) off Tillamook Head; there, 150 cases were taken. Size and Meat Yields A bushel basket contained an average 117 scallops weighing an average 45 pounds in the Southernarea--and 150 scallops weighing 50 pounds in the Northern area. Southern area scallops were taller
. Commercial fisheries review. Fisheries; Fish trade. 47 crabs were found primarily in the shallow depth intervals (table 2) off the Columbia River. Fish and starfish catches were rela- tively small and occurred at all depths. Trace amounts of sea pens were taken in some deep hauls. Skate egg cases were domi- nant in one haul (No. 96) off Tillamook Head; there, 150 cases were taken. Size and Meat Yields A bushel basket contained an average 117 scallops weighing an average 45 pounds in the Southernarea--and 150 scallops weighing 50 pounds in the Northern area. Southern area scallops were taller in height than Northern area scallops (fig. 5). In the Southern area, they ranged from to inches and aver- aged inches; in the Northern area, they ranged from to inches and averaged inches. In both areas, the largest scallops were taken in the shallower depth intervals, and the average size decreased with increas- ing depth. This trend is clearly shown when the height-frequency data are plotted by 5- fathom depth intervals for each area (fig. 6). SOUTHERN AREA. HEIGHT IN INCHES Fig. 5 - Comparison of height frequency of scallops taken in Northern and Southern areas of the Oregon coast. We delivered 7 98 pounds of scallops to the Oregon State University Seafoods Laboratory inAstoriafor a meat-yield analysis. There- suits are available in a mimeographed report by Law2/. Of total weight, the adductor mus- cles, or meats, made up 7 percent; the shell, 57 percent; the remaining body, 33 percent; and water loss, 3 percent. The size of meats ranged from 28 to 34 count per pound (aver- age ) in the samples from the Southern area, and from 51 to 58 count per pound (aver- age ) from the Northern area. By soak- ing the meats in fresh water for about 12 hours, their total weight increased 14 percent. Relative Catching Efficiency Tests A series of 12 comparative tows was made on the Siuslaw River bed in 55 fathoms in the Southern areato determine: (1) if cha
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