634 



Goldin, Abraham, John M. Venditti, Stewart R. Humphreys, and Nathan Mantel. 

 1958. 



Quantitative evaluation of chemotherapeutic agents against advanced leukemia 

 in mice. J. Natl. Cancer Inst. 21(3): 495-511. 



The research was done with chemical agents. Mercenaria (Venus) mercenaria 

 is not mentioned. - M.W.S. 



685 



Goldstein, B.,and 0. A. Roels. 1979. 



The effect of different algal protein concentrations on the nitrogen balance 

 of juvenile Mercenaria oampeohiensis , the southern hard clam. In Abstr. of 

 Papers submitted for the 42nd Ann. Meeting, Am. Soc . Limnol. Oceanogr., Inc., 

 Mar. Sci. Research Ctr., State Univ. of N.Y., Stony Brook, N.Y., June 18- 

 21, 1979. 



Five different algal protein concentrations were presented to duplicate 

 populations of juvenile M. oampeohiensis . The experiment ran four weeks 

 with weekly culling to return population weights to initial values . The 

 following nitrogen compounds were assayed daily: nitrate, nitrite, ammonia, 

 soluble protein, dissolved free amino acids, urea, total dissolved nitrogen, 

 and particulate protein. Particulate protein of culled animals and weekly 

 tank deposits of shellfish were also assayed. Algal cell densities of 

 5x10^ to 1x10^ cells/ml gave maximum weight increases. - J.L.M. 



686 



Goldstein, B. B.,and 0. A. Roels. 1980. 



The nitrogen balance of juvenile Mercenaria oampeohiensis at different feed 

 levels. Natl. Shellf. Assn., Abstracts, Technical Sessions: 19 (abstract). 



S 5 4 

 Isoohrysis was fed at four different cell densities/ml: 5x10 , 1x10 , 5x10 , 



1x10^, to juvenile hard clams M. oampeohiensis . Each treatment went to 



duplicate populations of 100 animals; each population had a whole wet weight 



of 10 grams. Total flow rate to each was 120 ml/minute. A quantitative and 



qualitative nitrogen balance for juvenile hard clams in a continuous flow 



system was calculated; 85 to 9 5% of all incoming nitrogen was accounted for 



in the different treatments. Ammonia and DFAA were excreted but urea was 



not. Nitrate and nitrite were generally unaffected by passage through the 



shellfish culture chambers although very small amounts were taken up by 



algae present in the copius biodeposits of shellfish receiving the densest 



treatment. High levels of soluble protein are associated with high levels 



of PPN. Apparently soluble protein is taken in along with or as a result 



of ingestion of particulate protein. Protein stripping efficiency, protein 



retention efficiency, food chain efficiency, ecological efficiency, protein 



conversion efficiency, and gross growth efficiency were all maximal for 



those animals receiving an average weekly inflow algal protein concentration 



of 5.75 pgat particulate protein nitrogen/liter. - J.L.M. 



687 



Goodwin, C. Lynn. 1973. 



Distribution and abundance of subtidal hard-shell clams in Puget Sound, 

 Washington. Wash. Dept. Fish., Tech. Rept. 14, v+81 p. 



The study was directed at Saxidomus giganteus and Protothaca staminea. The 

 similarity of these species to Mercenaria mercenaria suggests that methods 

 used could be applied to that species also. Surveys were done by SCUBA 

 divers, who collected samples with small hand-held venturi dredges. Divers 

 could make direct observation of the bottom, and reliable samples were 

 collected at less expense than by coring devices or grab dredges. About 15 

 samples/day could be taken. Estimated standing crops varied from 0.06 to 

 1.93 lbs/ft 2 for Saxidomus and 0.00 to 0.70 for Protothaca. (It is not 

 specified whether these weights were live weight or weight of meats. We 



192 



