= ey aed) 
= PORTAL 
Fig. 1—Locations of collections of fishes made from 
1876 to 1905. 
The common names of fishes used in this article 
are those recommended in American Fisheries So- 
ciety Special Publication No. 6 (Bailey et al. 1970), 
in which the scientific names can also be found. 
1. Galena River system (including Menominee, 
Sinsinawa, and Smallpox creeks ).—Rating good. 
Species present, 58. Unusual species: longnose dace. 
Unusual habitats are the gravel-rubble riffles and 
marginal aquatic vegetation. Barnyard pollution is 
a minor problem. 
2. Apple River system.—Rating good to excellent 
(in upper reaches). Species present, 62. Unusual 
species: Ozark minnow. Unusual habitats are gravel 
riffles and clear pools. Some barnyard pollution is 
present and siltation is a problem in lower reaches, 
but in general Apple River and its tributaries are ex- 
ceptionally clean streams. 
3. Plum River system (including Johnson, Rush, 
j L =. —— 
. f-- ee y! a € ! 
Seria 
Fig. 2.—Locations of collections of fishes made f 
1950 to 1971. 
and Otter creeks ).—Rating fair. Species present, 
Unusual species: brassy minnow. Unusual habi 
are gravel riffles. Barnyard pollution and silta 
are the principal problems. 
4. Rock-Green River system (including M 
dosia Ditch)—Except where it borders or pa 
through highly urbanized and industrialized ar 
the Rock River is rated good and, in some areas, 
cellent. Species present, 98. The Pecatonica 
Green rivers are only fair because of siltation 
agricultural pollution. Such tributaries as the k 
waukee, Leaf, and Kyte rivers and Elkhorn, I 
Grove, and Piscasaw creeks are good to excell 
other tributaries are fair to good. Unusual spe 
lake sturgeon, gravel chub, Ozark minnow, ©» 
stickleback, and brassy minnow. Unusual habitats 
the rocky and gravelly raceways in some of the rr 
and the small brooks with aquatic vegetation. 
