750 



Hammen, C. S.,and Susan C. Lum. 1966. 



Fumarate reductase and succinate dehydrogenase activities in bivalve mollusks 

 and brachiopods. Comp. Biochem. Physiol. 19(4): 775-781. 



Fumarate reductase (FR) and succinate dehydrogenase (SD) activities of 6 

 species of marine bivalve mollusk were determined by standard methods at pH 

 7.4 and 25°C, on tissue homogenates . In Mercenaria mercenaria , body weight 

 120.6 g, SD activity was 17.04 mumoles/min/10 g tissue, FR activity 8.64, 

 and the ratio SD/FR was 1.97. Clams of whole body weight 94.5 g had SD 

 activity 24.30 mumoles/min/100 g tissue, FR activity 8.28, and the ratio 

 SD/FR was 2.94. This was almost the lowest SD activity of the 4 burrowing 

 bivalves examined and the highest FR activity. Thus, SD/FR ratio was about 

 the lowest of all 4. - J.L.M. 



751 



Hammen, C. S., and P. J. Osborne. 1959. 



Carbon dioxide fixation in marine invertebrates: A survey of major phyla. 

 Science 130(3386): 1409-1410. 



752 



Hamons, Frank. 1971. 



Sonar tested as aid to shell fish surveys. Comm. Fish. News, Md. Fish 

 Wildl. Admin. 4 (1) : 1. 



The method, using a side-look sonar system, was used for American oyster and 

 soft clam. It is accurate, but slow. Bottom types also can be detected. 

 The method could be used for Mercenaria mercenaria surveys. - J.L.M. 



753 



Hamons, Frank L., and Ranford M. Sapp. 1971. 



Reconnaissance and inventory of shellfish in Chesapeake Bay - Present 

 techniques and proposed systems - A management problem. Proc . Natl. Shellf. 

 Assn. 61: 3-4 (abstract). 



Resurvey and relocation of oyster bottom is a necessary adjunct to initial 

 charting of clam bottoms. The survey is presently being done with a standard 

 hydraulic escalator dredge, which is ineffective in many areas and in some 

 cases detrimental to the bottom. A plan to map and classify over 450,000 

 acres of bottom using a combination of remote sensing with high resolution 

 side- look sonar and dredging equipment is described. - J.L.M. 



754 



Hampson, George R.,and Edwin T. Moul. 1978. 



No. 2 fuel oil spill in Bourne, Massachusetts: Immediate assessment of the 

 effects on marine invertebrates and a 3-year study of growth and recovery 

 of a salt marsh. J. Fish. Res. Bd. Canada 35(5): 731-744. 



On a visit to Winsor Cove on Oct. 18, 1974 (8 days after the spill) quahaug 

 (Venus mercenaria) and other species of bivalves were lying on the sediment 

 surface with shells gaping and siphons extended. When probed, these 

 bivalves showed little or no response. Four and three animals were found 

 at Bassett's Island in two locations on Oct. 12, 1974. - J.L.M. and M.W.S. 



210 



