a stone quarry that was connected with the head- 

 waters of Jordan Creek during high-water periods. 



Green Sunf ish. -- This fish, as collected in 

 Jordan Creek, was too small to interest anglers. 

 It was found in slow-flowing pools, especially 

 along the shallow edges where grasses and roots 

 provided cover. Its abundance was inversely re- 

 lated to the stream gradient. 



Bluegill. -- Although the bluegill was collected 

 in all divisions of the study section, it was not 

 abundant anywhere in Jordan Creek. Usually 

 regarded as a pond fish, the bluegill showed a 

 preference for long, shallow pools with reduced 

 current velocity. Few specimens collected were 

 of sizes desired by anglers. Only four were 5 

 inciies or more in length. 



Longear Sunfish.— This vyas the most abundant 

 sunfish in Jordan Creek. In total weight collected, 

 it was surpassed by only the hog sucker and the 

 stoneroUer. Its abundance increased sharply from 

 the wooded area to the open area and seemed to be 

 inversely related to the stream gradient. Sixty- 

 seven per cent of the total weight of this fish was 

 taken in the open area. 



Orangespotted Sunfish. -- Only one specimen 

 (3.8 inches in total length) was collected. It was 

 taken in Division 4. 



Rock Bass. "The rock bass was collected in 

 only the lower, wooded area. Although not abundant 

 in Jordan Creek, it was reputed to be a favorite 

 fish with local sportsmen. Only 2 of 30 rock bass 

 collected were less than 6 inches long. 



Miscellaneous Families 



Two families were represented in Jordan Creek 

 by single species: the pike family by the grass 

 pickerel, the killifish family by the starhead top- 

 minnow. Neither species was abundant in the 1950 

 collections, table 7. 



Grass P ickerel . -- Only 16 specimens of this 

 fish were collected, of which 14 were from the 

 slow-flowing pools of the open area. Thompson & 

 Hunt (1930) found fewer fishes in collections 

 containing grass pickerel than in those which did 

 not include this pickerel. No scarcity of minnows 

 was observed in the Jordan Creek collections that 

 contained grass pickerel. 



Starhead Topminnow.--This topminnow showed 

 a definite preference for the slow-flowing pools of 

 the upper area; only three specimens were taken in 

 the wooded area. 



Association of Species 



The association of fishes of Jordan Creek was 

 studied in the relationship of families to each other 

 and in the relationship of various species to 

 ecological characteristics of the stream, as discus- 

 sed in preceding paragraphs and summarized in 

 tables 8, 9, and 10, It was further studied by com- 

 paring the distribution patterns of the most common 

 species throughout the eight divisions of the study 

 area, figs. 6-24. Species having similar patterns 



Table 7. -Number and weight (in pounds) of grass pickerel and starhead topminnow collected, 1950, 

 in each of the eight divisions of Jordan Creek, and the total number and total weight of each species 

 collected in all divisions combined. 



+ Less than 0.01 pound. 



14 



