Table 1. - -Degcription of uawls uied In Saginaw Bay 



y Does not include midwater tows. 



2/ MS - modified shrimp trawl (body and cod end longer); EC 



3/4-size No. 35 east -coast whiting uawl. 



seining was conducted in August with the exception 

 of one haul in September. Eight of the seining sta- 

 tions were on the northwesterly side and two were 

 on the southeasterly side of Saginaw Bay. 



GEOGRAPffiCAL DISTRIBUTION 



Forty -seven species of fish were recorded in the 

 1956 study. The geographic distribution of 30 spe- 

 cies taken from Saginaw Bay in trawls and gill 

 nets and 27 species caught by Inshore seining is list- 

 ed by location in table 2. All species in the table 

 had been previously recorded for the Bay, but the 

 locality records for several were increased greatly. 

 The following 17 species were caught only by seining 

 in shallow inshore waters: 



Stoneroller 

 Longnose dace 

 Common shiner 

 Sand shiner 

 Spotfin shiner 

 Fathead minnow 

 Bluntnose minnow 

 Black bullhead 



Brown bullhead 

 Tadpole madtom 

 Central mudminnow 

 Banded kUlifish 

 Blackside darter 

 Iowa darter 

 Rock bass 

 Smallmouth bass 



Largemouth bass 



Six species, including five that were captured at 

 other than seining stations, were taken at 50 percent 

 or more of the seining localities: emerald shiner, 

 spottail shiner, yellow perch, Johnny darter, large - 

 mouth bass, and pumpkinseed. Other species oc - 

 casionally taken by seining included alewife, white 

 sucker, carp, and logperch. Nearly all alewife, 

 carp, yellow perch, pumpkinseed, smallmouth bass, 



largemouth bass, and Uack ciappie caught by seining 

 were young-of -the -year or yearling. 



The four moat widely distributed species - -alewife , 

 smelt, white sucker, and yellow perch --were found at 

 more than 90 percent of the gill net and trawling sta - 

 tions, and no doubt inhabit most areas in the bay at 

 some time during the year. Five species (carp, emer - 

 aid shiner, logperch, spottail shiner, and trout -perch) 

 were taken at more than 50 percent but less than 75 

 percent of the stations. Lake herring and walleye were 

 caught at more than 30 percent but less than 50 percent 

 of the stations. Six species - -channel catfish, Jdinny 

 darter, mottled sculpin, pumpkinseed, sauger, and 

 white bass --were caught at more than 10 percent but 

 less than 30 percent of the stations. The following 12 

 species were collected at less than 10 percent of the 

 stations: C. alpenae , black crappie, brown trout, bur- 

 bot, gizzard shad, C. hoyi , longnose sucker, northern 

 pike, rainbow trout, silver lamprey, stonecat, and 

 yellow bullhead. 



All centrarchids, the silver lamprey, l<ngnose 

 gar, stoneroller, fathead minnow, bluntnose minnow, 

 black bullhead, brown bullhead, tadpole madtom, 

 mudminnow, northern pike, blackside darter, and 

 Iowa darter were found only in the inner bay. Fishes 

 captured only in the outer bay include: gizzard shad, 

 rainbow trout, brown trout, longnose sucker, longnose 

 dace, sand shiner, spotfin shiner, and burbot. 



Additional distribution records of the fish fauna 

 of Saginaw Bay were obtained from the Division of 

 Fishes, Museum of 21oology. University of Michigan. 

 This list (table 3) includes 24 species not collected 



