Fish Population Estimates 



103 



Table 2. (Continued) 



Section 5 



Species N 



Bowfin 25 



American eel 546 



Eastern mudminnow ... 1300 



Redfin pickerel 7050 



Chain pickerel 



Golden shiner 670 



Creek chubsucker 11764 



Yellow bullhead 4700 



Brown bullhead 502 



Tadpole madtom 



Pirate perch 5916 



Mud sunfish 7 



Flier 546 



Blackbanded sunfish .... 7 



Bluespotted sunfish 242 



Banded sunfish 



Pumpkinseed 148 



Warmouth 



Bluegill 247 



Largemouth bass 7 



Black crappie 



Swamp darter 



Sawcheek darter 57 



TOTALS 33734 



CL 



B 



%N 



%B 



(*-*) 



9.2 



.1 



1.0 



(309-10381) 



7.6 



1.6 



.8 



(813-4653) 



11.7 



3.9 



1.2 



(4653-17238) 



246.6 



20.9 



25.8 



(321-oo) 



6.1 



2.0 



.6 



(6217-224102) 



423.2 



34.9 



44.2 



(2150-oa) 



169.0 



13.9 



17.7 



(250-co) 



24.5 



1.5 



2.6 



(4465-9449) 



35.4 



17.5 



3.7 



(*-*) 



* 



.0 





(358-3010) 



19.1 



1.6 



2.0 



(*-*) 



* 



.0 





(119-0O) 



1.5 



.7 



.2 



(91-co) 



* 



.4 





(141-co) 



2.9 



.7 



.3 



(*-*) 



* 



.0 





(40-oo) 



.1 



.2 



.0 



956.9 



The Petersen single census mark-recapture method (Ricker 1958) was 

 used in estimating populations. Sampling was divided into a marking 

 period and a censusing period. A week generally was required for sampl- 

 ing each study section and at least one night separated the two periods. 

 During the marking period all fish captured in good condition and large 

 enough to mark (generally > 75 mm) were fin clipped and released. Fish 

 too small to mark were counted and this count was considered a minimal 

 population estimate. All fish (of the size marked) captured during census- 

 ing were inspected for marks. The same sampling effort was employed 

 during the marking period and the censusing period. 



An indication of fish biomass was obtained from the product of the 

 numerical population estimates and the mean weight of a sample of fish 

 (by species) collected from the study streams using the same collection 

 techniques (Tarplee 1975). In cases where the number of individuals con- 

 sidered in obtaining the mean weight was small, data from 1973 rotenone 

 samples (Pardue et al. 1975) were also used. 



