Only 0. 1 percent (inner bay) to 1. 2 percent 

 (deep outer bay) of all yellow perch taken by trawl- 

 ing had attained the minimum legal length required 

 in the commercial fishery (8 1/2 inches). El-Zarka 

 (1959) reported a seasonal change in the percentage 

 of legal -sized perch taken in trap nets near Bay Port 

 in the inner bay in 1955: "On April 18 this percent- 

 age [of legal fish] was 35. 6, but fishermen did not 

 benefit from the relatively high value because fish- 

 ing for perch is not allowed at that time (closed sea- 

 son, April 15-May 10). The proportion of legal- 

 sized perch subsequently fell to barely 2 percent on 

 May 18 and June 7 and less than 2 percent on June 22. 

 In the fall (October 9) the percentage increased again 

 to 20. 0. " El-Zarka attributed this October increase 

 to the presence of a large percentage of females, 

 which grow faster than males. 



Other Species 



Chubs ( Core genus spp. ) caught in Saginaw Bay 

 were taken almost exclusively by gill nets in the 

 deep outer bay. Due to the limited numbers cap- 

 tured, details on the findings are not offered here. 



Lake herring were not concentrated until the 

 spawning run in mid -November. A gill net lifted 

 from the bottom north of Sand Point (Station 5) on 

 November 19 caught 1, 790 lake herring weighing 

 958 pounds. At the same time and location, a sin- 

 gle bull net set on the bottom contained 1, 632 weigh- 

 ing 804 pounds. Some of the lake herring were ripe, 

 but none were spent. The same type of gill nets 

 (bull net not fished) lifted the following day off Fish 

 Point (Station 1) caught only 30 lake herring. 



ACKNOWLEDGMENTS 



Members of the biological staff of the Cisco- - 

 LaRue Wells, Clifford L. Tetzloff, Alfred M. Beeton, 

 William G. Gordon, and James H. Johnson - -were re- 

 sponsible for the collection of materials and data. 

 Reeve M. Bailey identified many fish, examined the 

 list of names of fishes, and permitted the examination 

 of Museum records of past collections from Saginaw 

 Bay. Stanford H. Smith and Ralph Hlle advised In 

 the preparation of the manuscript. Figure 1 was pre- 

 pared by William Crlstanelll. 



LITERATURE CITED 



El-Zarka, SalahEl-DIn 



1959. Fluctuations In the population of yellow 

 perch, Perca flavescens (MItchlll), In 

 Saginaw Bay, Lake Huron. U. S. Fish 

 and Wildlife Service, Fishery Bulletin 

 151, vol. 58. p. 365-415. 



Moffett, James W. 



1954. Fisheries knowledge increased through 

 research vessel. The Fisherman, vol. 

 22, no. 3, p. 7, 13-14. 



No concentrations of walleyes were located. 

 Fifty -eight walleyes were taken during the season 

 from five outer -bay stations; 19 of them were tagged 

 (Petersen tags) and released. Two tags have been 

 recovered. One was from a fish released near Char - 

 ity Island on August 7 and recovered a few miles 

 away on September 15 by a commercial fisherman. 

 The second tag was recovered March 31, 1957, 

 near Port Clinton, Ohio, in western Lake Erie from 

 a walleye released November 2, 1956, at Station 9. 



White suckers Inhabited shallow water (7 1/2 

 fathoms and less) during the period of this investi- 

 gation with one exception on August 29, when 36 

 were taken at 13 fathoms (Station 11) in gill nets. 



11 



