121 



Ayres, P. A. 1975. 



The quantitative bacteriology of some commercial bivalve shellfish entering 

 British markets. J. Hyg . Camb . 74(3): 431-440. 



Samples were obtained from producers or wholesalers. Only six samples of 

 hard clams were treated, from a producer or wholesaler on the east coast. 

 No specific comments are given on these samples. The relation between the 

 numbers of non-specific bacteria growing at 20° and 37° appears to be a 

 useful measure for assessing the likelihood that raw shellfish are a public 

 health risk. - J.L.M. 



122 



Baab, Judith S., Gerald L. Hamm, Kenneth C. Haines, Arthur Chu, and Oswald A. 

 Roels. 1973. 



Shellfish mariculture in an artificial upwelling system. Proc. Nat. 

 Shellfish. Assn. 63: 63-67. 



A mariculture system was established in St. Croix using "artificial upwelling" 

 to obtain deep water rich in nutrients. Mereenavia meraenaria were grown in 

 sediment and wire trays. Diatoms were Belleroohea, Chaetooeros, and 

 Thalassiosira. After 60 days clams in trays had about a 9% increase in 

 weight while clams in sediment showed about a 14% increase. Clams in tanks 

 cleaned every three weeks filtered cells with greater efficiency than clams 

 in tanks cleaned every one or every two weeks. After 29 days, clams in the 

 tank cleaned every three weeks had 9.5% increase in weight; clams in tanks 

 cleaned every two weeks had 5.2% weight increase; and clams in tanks cleaned 

 every week a 4.8% increase. Fi hybrids (male M. mercenaria X female 

 M. aampechiensis) grew 5 times as fast as pure M. mereenaria. - D.L. 



123 



Bader, Richard G. 19 54. 



The role of organic matter in determining the distribution of pelecypods in 

 marine sediments. J. Mar. Res. 13(1) : 32-47. 



Studies at Mt. Desert Island, Me. demonstrated that water depth and median 

 diameter and sorting of sediments are grossly related to density of pelecypod 

 populations. Finer and poorly sorted sediments of the deeper water have the 

 widest range of pelecypod densities. Organic content of sediments and its 

 decomposition apparently control pelecypod densities. As organic content 

 (food supply) increases, pelecypod populations increase until bacterial 

 decomposition of organic material becomes the major limiting factor, then 

 the population decreases. No specific mention of Meroenaria mevcenav-La. 

 - J.L.M. and M.W.S. 



124 



Bagg, James Francis, Jr. 1975. 



A study of proposed alternate Long Island Sound bridge sites and their 

 projected impacts on the natural environment. Thesis presented in partial 

 fulfillment of the requirements for the Degree of Master of Science, State 

 Univ. of N.Y, x + 258 p. 



Section III. Shellfish. Discusses the commercial and recreational importance 

 of the major shellfishes and points out where the major centers of abundance 

 are. The effects on hard clam are questionable. Recommendations are given 

 that would minimize the effects on hard clam. - J.L.M. 



125 



Baiardi, J., L. Curtis, J. Hurst, E. Premuzic, J. Wourms , E. T. Premuzic, 

 et al. 1974. 



Occurrence of growth controlling agents in marine organisms. Species dis- 

 tribution and preliminary chemical data. Paper to be presented at the 4th 

 Food-Drugs from the Sea Conference, Univ. Puerto Rico, Mayaguez, 17-21 Nov. 

 1974. New York Ocean Science Lab. (NYOSL) , Montauk, N.Y. (typed from 

 abstract) , 2 p. 



35 



