July, 1955 
from trot line sets were too meager for 
valid analysis. The hoop diameters of 
wing nets and hoop nets were not con- 
sidered in this study, and catches made in 
these nets were not separated on the basis 
of hoop size. 
The common and scientific names of 
fish caught are listed in table 2. 
Characteristics of Area 
The Mississippi River in the MR-C 
section is more turbid and swifter than 
in the D-MR section. —The MR-C sec- 
tion is free of locks and dams, whereas the 
D-MR section is canalized by a series of 
14 locks and dams maintained for navi- 
gation. 
Detailed descriptions of the physical 
and fish-faunal characteristics of the 
Caruthersville-Dubuque section of the 
Mississippi River and the field stations 
established during the 2-year survey are 
contained in the earlier report prepared 
by Barnickol & Starrett (1951). 
In test-net collections, sport fishes were 
present in greater numbers in the D-MR 
section of the river than in the MR-C 
section. In the MR-C collections, small- 
mouth buffalos and black buffalos were 
more abundant than bigmouth_ buffalos. 
Bigmouth buffalos were more common in 
the D-MR collections than in the MR-C 
collections. Blue catfish were found up- 
stream as far as Lock and Dam No. 19 at 
Keokuk, Iowa. Fish of this species were 
taken in greater numbers in the Missis- 
sipp1 River below the mouth of the Mis- 
souri than above. Flathead catfish were 
common in both sections of the Missis- 
sippi. In 1944, more channel catfish were 
in test-net collections between Warsaw 
and the mouth of the Missouri River 
than in collections from the MR-C sec- 
tion. 
Commercial Fishing Activities 
At the time of the survey, commercial 
fishing was conducted along much of the 
Mississippi River between Caruthersville 
and Dubuque. According to Starrett & 
Parr (1951:6), in 1950 there were 248 
residents of Illinois who worked either 
part or full time as professional commer- 
cial fishermen on the Mississippi. ‘hese 
STARRETT & BARNICKOL: COMMERCIAL FISHING DEVICES 
327 
Table 1.—Stations at which fish collections 
were made in 1944 and 1946 fisheries survey 
of the Mississippi River between Caruthers- 
ville, Missouri, and Dubuque, Iowa, inclusive 
dates for each collection, and location of each 
station. 
gs 
SaaaN en a g g 2 
ATES nm & 4 
a =) = =) 
=(S\e)| 
a S 
a Ay 
1944 
Caruthersville, 
Mo...........| April 6-12 689 | — 
Tiptonville, 
‘Rennie 2.25: April15—May 10} 665 | — 
Cairo, Ill........| May 18-24 SVB) 
Cape Girardeau, 
O..........-| May 26-31 Be) | 
Grand Tower, Ill.| June 2-9 499) | 
Chester, Ill......] June 11-15 468 | — 
Ste. Genevieve, 
Mos a... Vane IR 204 AeA 
Crystal City, 
Mo..........-| June 25-30 AVIS) | 
Cliff Cave, Mo...| July 2-8 4) 
Mouth of Mis- 
souri River, 
Mame. 2 uly ions 83) = 
Grafton, Ill... ..| March 22-30 358 26 
Gratton ll ae July 17-25 BK I ASS 
Grafton? Tr... Sept. 22-27 358 | 26 
Grafton, III. 
(Experimental)| Oct. 25-29 358 26 
Winfield, Mo....| July 27—Aug. 2 | 337 | 26, 25 
Hamburg, Ill....| Aug. 3-9 SAO 2S 
Louisiana, Mo...| Aug. 12-17 295 | 24 
Cincinnati Land- 
ing, Ill........| Aug. 19-23 281 24 
Hannibal, Mo...) Aug. 25-30 Dove 22 
Quincy, Ill...... Sept. 2-6 DIG | 222 
Quincy, Ill. (Ex- 
perimental). ..| Oct. 31-Nov. 13} 256 | 22 
Canton, Mo.....| Sept. 8-13 236 | 21 
Warsaw, Ill.....| Sept. 14-19 218 | 20 
1946 
Burlington, lowa| April 10-22 ghey |) AY) 
Oquawka, Ill... .| April 24-May 5| 159 18 
New Boston, IIl..| May 7-18 143 18 
Muscatine, lowa| May 19-30 134 17 
Fairport, lowa..|} June 2-13 118 | 16 
Andalusia, Ill....| April 1-7 103 | 16 
Andalusia, Ill....| June 18-26 103 16 
Andalusia, Ill....| Sept. 15-24 103 | 16 
Pleasant Valley, 
OW ar ok. ais June 28-July 9 87 15 
Cordova, Ill.....} July 11-22 WS 14 
Multonsstileyee ee July 24-Aug. 4 57 14 
Sabula, Iowa....| Aug. 6-17 44) 13 
Bellevue, lowa. .| Aug. 19-30 17 12 
Dubuque, Iowa .| Sept. 1-12 Oral 
