Oregon bay clam distribution, abundance, planting sites and effects of harvest, annual report, 1978/1979

"We continued our studies of the distribution of bay clams in Oregon's estuaries, Maps showing the distribution of clams and vegetation type in Umpqua and Coos bays are presented. . . We continued to monitor the growth of laboratory produced clams planted in Netarts and Yaquina bays." (from the Abstract) Includes assessment of harvest potential, studies of commercial clam harvests, studies of the effects of harvesting littleneck clams on recruitment, and assessing the effects of clam harvests on substrate material. Includes maps and statistical tables. Covers October 1, 1978 to September 30, 1979. Note: this is the best possible copy that could be obtained