Fish Population Estimates 107 



Table 3. Population estimates of fishes collected from Hoggard Mill Creek, May 

 through August 1972. N = number of each species per surface hectare; 

 CL = 80% confidence limits; B = biomass in kg per surface hectare; %N 

 = percent of total number; %B = percent of total biomass; * = data not 

 available or < 0.1; and °° = infinite. 



Species N 



Bowfin 10 



American eel 2780 



Eastern mudminnow ... 22 



Redfin pickerel 526 



Chain pickerel 2 



Golden shiner 32 



Creek chubsucker 190 



Yellow bullhead 818 



Brown bullhead 2 



Tadpole madtom 1426 



Pirate perch 12792 



Mud sunfish 314 



Flier 128 



Bluespotted sunfish 944 



Redbreast sunfish 2 



Pumpkinseed 7 



Warmouth 146 



Bluegill 5 



Black crappie 5 



Sawcheek darter 934 



Yellow perch 



Section 19 







CL 



B 



%N 



%B 



(7-oo) 



3.7 



.0 



1.7 



(1619-15590) 



38.9 



13.2 



17.8 



(10- oo) 



.2 



.1 



.1 



(314-2936) 



18.4 



2.5 



8.4 



(*-*) 



.1 



.0 



.0 



(20-oo) 



.2 



.2 



.1 



(131-670) 



6.8 



.9 



3.1 



(430-15750) 



29.4 



3.9 



13.4 



(*-*) 



.0 



.0 



.0 



(66O-00) 



7.2 



6.8 



3.3 



(9953-19217) 



76.6 



60.7 



35.0 



(151-oo) 



12.9 



1.5 



5.9 



(67-co) 



4.5 



.6 



2.1 



(442-oo) 



5.6 



4.5 



2.6 



(*-*) 



* 



.0 





(*-*) 



* 



.0 





(106-oo) 



13.0 



.7 



5.9 



(*-*) 



.1 



.0 



.0 



(*_*) 



* 



.0 





(423-oo) 



1.2 



4.4 



.5 





.0 



.0 



.0 



TOTALS 21083 218.8 



92 percent of the estimated fish biomass in Hoggard Mill Creek. This 

 comparison indicates that most of the biomass in both these streams is 

 made up of species desired by fisherman. 



The great variation in population estimates among the sections and be- 

 tween the streams sampled is probably primarily due to habitat difference. 

 Some variation, however, may be due to changes in sampling gear ef- 

 ficiency in different stream types. The larger numbers of Pirate perch and 

 American eel in Hoggard Mill creek may be related to the greater amount 

 of aquatic vegetation in that stream. Section 2 of Hoggard Mill Creek con- 

 tained dense beds of aquatic vegetation and a soft, muddy substrate. Den- 

 sities of juvenile American eel and Pirate perch were much greater there 

 than in any other sampling area in either stream. 



In the larger sections of streams studied (Section 1 in Duke Swamp and 

 part of Section 19 in Hoggard Mill Creek) some of the sampling gear, such 



