Bay and off passes. Most productive stations in open Gulf were off 

 Charlotte Harbor. The species seldom was taken deeper than 9.2 m. In some 

 areas quahogs were associated with seagrasses. M. aampechiensis from Tampa 

 Bay and Charlotte Har. were smaller than those from open Gulf. M. mercenaria 

 supports a small east coast fishery, but none was taken in areas covered by 

 this survey, nor was any clam identified as a hybrid or subspecies. Although 

 the paper contains 1 small-scale location chart and 16 large-scale charts, 

 many place names mentioned in the text are not included. Detailed fishing 

 logs are contained in 2 appendix tables. There is also an extensive list of 

 literature cited. - J.L.M. 



677 



Godcharles, Mark F.,and Walter C. Jaap. 1973. 



Fauna and flora in hydraulic clam dredge collections from Florida west and 

 southeast coasts. Fla. Dept. Nat. Resources, Mar. Research Lab., St. 

 Petersburg, Spec. Sci. Rept. 40, 89 p. 



Reports collections made in 1970 and 1971 by locality, depth, and numbers 

 of organisms. Extensive collections of Mercenaria aampechiensis are listed. 



- J.L.M. 



678 



Goddard, C. Keith, and Arthur W. Martin. 1966. 



Carbohydrate metabolism. In Physiology of Mollusca. Karl M. Wilbur and 

 C. M. Yonge (eds.) Academic Press, New York, Vol. II: 275-308.- 



Refers to work of Dugal (1939) abstracted elsewhere in this bibliography. 



- J.L.M. 



679 



Godwin, Walter F. 1967. 



Preliminary survey of a potential hard clam fishery. Ga. Game Fish. Comm., 

 Mar. Fish. Div. , Brunswick, Contr. Ser. 1, 23 p. 



A small hard-clam fishery existed in Georgia from at least 1880 to 1932. 

 The recorded peak catch was 43,000 pounds in 1908; from then to 1932 no 

 more than 2,000 lbs annually were reported. Factors causing the decline 

 are obscure. The survey was undertaken in 1966 and 1967 to determine the 

 feasibility of reestablishing a fishery. Subtidal samples were taken with 

 an oyster dredge, intertidal samples with rakes and tongs. Of 269 stations, 

 clams were taken at 35, but commercial abundance was found at only 4 

 intertidal locations and 2 subtidal. Species were Mercenaria mercenaria 

 and Rangia cuneata. Maximum abundance of M. mercenaria was 138/100 ft 2 at 

 station 45, 134/100 ft 2 at station 103, 151/100 ft 2 at station 140. Each 

 area was less than 1 acre. Few clams below legal size were taken. Densities 

 of M. mercenaria were either too low for commercial harvesting or areas 

 containing hard clams were too small to support a commercial fishery. The 

 study was to be continued. The sampling log contains information on size 

 range, mean length, water depth, bottom type, and current velocity. - J.L.M. 



680 



Godwin, Walter F. 1968. 



The growth and survival of planted clams, Mercenaria mercenaria , on the 

 Georgia coast. Ga. Game Fish Comm., Mar. Fish. Div., Brunswick, Contrib. 

 Ser. 9, 16 p. 



Planted clams must be protected by screening to reduce blue crab predation. 

 It was concluded that costs of protection would be prohibitive on a 

 commercial scale. Laboratory-reared quahogs from North Carolina 13 to 26 mm 

 long were held from Aug 1967 to June 1968 in covered and uncovered trays on 

 bottom in six areas, and suspended off bottom in another area. Suspended 

 experiments were unsuccessful and were terminated. Mortality in protected 

 trays ranged from to 60%. In unprotected trays mortality was 100%, except 



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