papers resulting from work not associated 

 with Great Lakes research, reviews, and nu- 

 merous processed memoranda and information- 

 al releases of only temporary value, prepared 

 for administrative use, or given restricted 

 distribution. The list does include a number 

 of publications of a popular character prepared 

 for the information of the general public and 

 the fishing industry; most of these popular 

 articles contained illustrative original mater- 

 ials drawn from the Great Lakes files or were 

 summaries of longer papers issued in scientif- 

 ic publications not generally accessible. 



Applegate, Vernon C. 



1950. Natural history of the sea lamprey 

 Petromyzon marinus in Michigan. 

 Fish and Wildlife Serv., Spec. 

 Sci. Rep.:Fish. No. 55, 237 pp. 

 Exhaustive study of life history 



from deposition and hatching of eggs, 

 through 4 -year larval existence, 1- 

 to 1-1/2-year parasitic stage in lake, 

 upstream spawning migration, and 

 nest building. Contains voluminous 

 ecological data on factors of migra- 

 tion, spawning requirements, larval 

 habitat, • • • . 



1951. The sea lamprey in the Great 

 Lakes. Sci. Monthly, Vol. 72, 

 pp. 275-281. (Revision of Fish 

 and Wildlife Serv., Fish. Leaflet 

 No. 384, issued October 1950.) 

 Semi -popular account of the inva- 

 sion of the upper Great Lakes by the 

 sea lamprey and of the effects of that 

 parasite on stocks of commercially 

 valuable fish. Reviews sea lamprey's 

 life history with special reference to 

 technical problems of control. 



1951. Sea lamprey investigations . II. 

 Egg development, maturity, egg 

 production, and percentage of un- 

 spawned eggs of sea lampreys, 

 Petromyzon marinus, captured in 

 several Lake Huron tributaries. 

 Pap. Mich. Acad. Sci., Arts, and 

 Lett., Vol. 35 (1949), pp. 71-90. 

 Investigation of sex cycle of fe- 

 males- -sizes of eggs, number per 

 individual (range of 24,000 to 110,000; 



mean of 61,500) and its variation with 

 body length and weight, and percentage 

 of unspawned eggs (estimated at 5.0). 



Applegate, Vernon C, and Clifford L. 

 Brynildson 

 1952. Downstream movement of recent- 

 ly transformed sea lampreys, 

 Petromyzon marinus, in the Carp 

 Lake River, Michigan. Trans. 

 Am. Fish. Soc, Vol. 81 (1951), 

 pp. 275-290. 



Three -year count of daily catch 

 of newly transformed migrants cap- 

 tured by inclined -plane screen and 

 trap. Includes data on sizes of 

 migrants and evidence of rise in 

 stream water level as major factor 

 inducing migration. 



Applegate, Vernon C, John H. Howell, A.E. 

 Hall, Jr., and Manning A. Smith 

 1957. Toxicity of 4,346 chemicals to 

 larval lampreys and fishes. 



Fish and Wildlife Serv., Spec. Sci. 



Rep.: Fish. No. 207, 157pp. 



List of chemicals and record of 

 their effects on ammocetes, rainbow 

 trout, and bluegills at a various low 

 concentration, temperature, 55° F. 

 These tests represent the preliminary 

 work in a search for a means of des- 

 troying larval lampreys in streams 

 through the addition of chemicals . 



Applegate, Vernon C, Paul T. Macy, and 

 Virgil E. Harris 

 1954. Selected bibliography on applications 

 of electricity in fishery science. 

 Fish and Wildlife Serv., Spec. Sci. 

 Rep.: Fish. No. 127, 55 pp. 

 Contains: citations of 350 publica- 

 tions in the worldwide literature, 

 including sources of abstracts and 

 reviews of some; titles of 27 typewrit- 

 ten or processed reports, and locations 

 of agencies with which they are de- 

 posited; list of 22 patents issued by 

 the U . S . Patent Office . 



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