numbers of dead fish in nets; and esti- 

 mates of total numbers of undersized 

 fish destroyed). 



VAN OOSTEN, JOHN, vide: HUBERT R. GAL- 

 LAGHER; OLIVER H. SMITH; FRED A. WEST- 

 ERMAN. 



WELLS, LaRUE. 



1960. Seasonal abundance and vertical 

 movements of planktonic Crustacea in 

 Lake Michigan. U.S. Fish Wildl. Serv., 

 Fish. Bull. 60:343-369. 



Horizontal tows of plankton nets, 

 about 2 hours apart and spaced mostly 

 at 10-m. depth intervals, were made 

 from late afternoon to near midnight 

 (through the night on two occasions) 

 seven times in June -November 1954 

 and three times in June toOctober 1955. 

 Data permitted description of seasonal 

 abundance and diurnal vertical move- 

 ments of eight cladocerans, nine cope- 

 pods, Mysis, and Pontoporeia . Most 

 species had a single seasonal population 

 peak. All undertook diurnal nnovements 

 but cold-stenothermic varieties did not 

 pass through the thermocline in sig- 

 nificant numbers. Abundance in surface 

 waters usually was maximunn near or 

 shortly after sunset. 



WELLS, LaRUE, and ALFRED M. BEETON. 

 1963. Food of the bloater, Coregonus hoyi, 

 in Lake Michigan. Trans. Amer. Fish. 

 Soc. 92(3):245-255. 



Stomachs of 1,469 bloaters more than 

 7 inches long contained identifiable food. 

 An additional 461 ciscoes, 7 inches or 

 smaller, were not positively identified 

 but without question were mostly bloat- 

 ers. All fish were caught in bottom nets 

 except 49 (less than 6 inches long) 

 which were taken in midwater trawls. 

 Bloaters shorter than 7 inches long 

 depended heavily on zooplankton; larger 

 fish fed mostly on Pontoporeia affinis 

 aind Mysis relicta . Of the two, Mysis 

 becomes more important with increase 

 of depth and progress of the season from 

 spring to fall. Incidence of Mysis de- 

 clines with increase in the length of fish. 



WESTERMAN, FRED A., and JOHN VAN 

 OOSTEN. 

 1939. Report to the Michigan State Senate 

 on the fisheries of Potagannissing Bay, 

 Michigan. Mich. Dep. Conserv., 82 p. 



Report on study conducted in response 

 to pressure from sport fishermen for 

 abolition of commercial fishing in the 

 Bay. Observations on the commercial 



fishery, tagging experiment on black 

 bass, analysis of commercial fishery 

 statistics, creel-census records . . . 

 proved the contentions of sport fisher- 

 nnen concerning dannage to angling from 

 commercial operations to be invalid. 

 Continuance of commercial fishing was 

 recommended as desirable in this ba- 

 sically rough-fish water. Elin-iination of 

 nets from one small area about 3 months 

 each sun-imer was the only change of 

 regulation suggested. 



WESTERMAN, F. A., vide: JOHN VAN OOSTEN., 



WIGLEY, ROLAND L. 



1952. A method of marking larval lampreys. 

 Copeia 1952(3):203-204. 



Report on successful marking of larval 

 lannpreys as snnall as 30 nnm. long by 

 subcutaneous injection of cadnnium sul- 

 fide, mercuric sulfide, and carbon. 

 Marks had not faded after 1 to 1-1/2 

 years. 



WIGLEY, ROLAND L. 



1959. Life history of the sea lamprey of 

 Cayuga Lake (N.Y.). U.S. Fish Wildl. 

 Serv., Fish. Bull. 59:561-617. 



A life -history study of an endemic 

 stock to obtain data for comparisons 

 with the recently established Great 

 Lakes stocks. Studies of the spawning 

 run touched on such points as morpho- 

 logical characters, length, weight, time 

 and factors of upstream migration, 

 sex ratio, spawning sites, number of 

 individuals in runs .... Incubation and 

 habits of annmocetes were studied from 

 specimens reared in hatchery troughs. 

 Larval life was estimated at 7 years. 

 Effects of sea lannprey attacks on lake 

 trout were studied in both Cayuga and 

 Seneca Lakes. 



WILLEFORD, B. R., JR. 



1956. The solubility of 3-bromo-4-nitro- 

 phenol in water and acetone. Ecology 

 37(4):840. 



A study to solve certain technical 

 problems in the practical application of 

 the compound to kill lamprey larvae in 

 streams. 



WOLFERT, DAVID R. 



1963. The movements of walleyes tagged as 

 yearlings in Lake Erie. Trans. Amer. 

 Fish. Soc. 92(4):414-420. 



Of 3,998 I-group walleyes marked 

 with a dart-type tag along the south 

 shore of western Lake Erie in 1960, 



45 



