Vacuoles 322 



Valine 695, 2078, 2140, 2177 



Value, estimate of 906 



, increase in 2068 



, landed 340 



, low market 1732 



, noncommercial 1532 



of annual harvest 910 



commercial harvest 377 



recreational harvest 377 



shellfishery 1001, 1002 



, record 340 



statistics (see also statistics) 1755 



, total product 549 



Valve closure 2228 



, duration of 688 



, period of 214 



, doubtful 1343 



, fresh left 953 



movement 85, 179 7 



opening, period of 212 



under constant conditions 1797 



, protuberant right 1723 



, rugose area in each 425 



Valves 101, 181, 212, 213, 359, 403 



, asymmetrical and unequal 1669 



, attached hard clam 858 



closed artificially 186 



by clam 186 



, keep 1346 



, closure of 156 



, dead 515, 719, 771, 969 



, erosion of inside central portions of 523 



, forces apart 1222 



, mollusc 517 



, open 153, 156, 358, 1804 



open in high water and darkness 1797 



, opening of 1435 



, smooth central area on 621 



Van Slyke method 524 



Vandalism (see also poachers) 76 



Variable 1066 



Variation 24 



Variations, individual 1983 



, local 1263, 1567 



834 



