Seed clams, illegal harvesting and marketing of 1796 



reared in laboratory 965 



culture 1711 



, destruction of 1887 



diminishing, natural 1136 



from natural reproduction 667 



, hybrid 1285 



oysters 1599 



per minute 503 



planting 291, 292 



has no effect on yields 2217 



produced in hatcheries 1017 



production 536 



, of clam and oyster 1085 



, __ , promising 1841 



quahog dredge 50 3 

 , smother 1522 



supply, adequate 1522 



transplanted 505 



Seeding 1366 



, continuous 1711 



with juveniles 862 



Segment, most stable 397 



, N-terminal 397 



, resistant 1266 



two- thirds of the size of the molecule, stable 2104 



Segments 455 



Seguine Point, N. Y. 1310 



Selection 1283, 1287, 1290, 1291, 1295 



and speciation 9 7 



Selenium 2197 



Self-cleansing mechanism 842, 1091, 1092 



-defense 482 



" _" from "nonself", recognizing 331 



Senegal 1804 



Sense organs 315 



Sensitive, extremely 710, 1508, 1510, 1980 



Sensitivity 210 



greatest early in summer 1510 



if clams freshly dug 1508 



high 1189, 1473 



highest in spring 1508 



, loss of ligand 240 



varies seasonally 19 86 



Separation 387 

 Sephadex fractions 891, 1082 

 G-25 2207 



799 



