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Lake Galena

Bucks County

Trap Netting
June 25-27, 2007


From June 25 through 27 Pennsylvania Fish and Boat Commission (PFBC) biologists conducted a trap netting survey (6 nets) in the 365 acre Lake Galena, Bucks County, in order to determine whether or not channel catfish had been reproducing to the extent that a desirable fishery could be supported without stocking. Seventy-three channel catfish ranging in length from 17 to 28 inches were collected during the survey, which followed three years of discontinued fingerling stockings.

Channel catfish 
Fisheries Biologist Bryan Chikotas holds a heavy 28-inch channel catfish

The catch rate of channel catfish was 0.51 fish per hour, which meant that 0.51 channel catfish were collected for every hour that the trap nets were fished.  The southeast Pennsylvania average trap net catch rate for channel catfish is 0.26 fish per hour.  Large channel catfish (> 20 inches) were collected at a rate of 0.36 fish per hour from Lake Galena. The southeastern Pennsylvania trap net catch rate average for channel cats of this size is 0.05 channel catfish per hour. 

Brown bullhead
Brown bullhead

Catch rates indicated that channel catfish stockings have been successful at the very least in initiating the building of a dense channel catfish population in Lake Galena. Additionally, catch rates were well above the regional minimum threshold of 0.15 per hour for continuing stockings.

The lack of naturally produced channel catfish in the 2007 catch, as revealed by an absence of fish under 17 inches, suggested that channel catfish stockings are most likely necessary to maintain the lake’s channel catfish fishery. It is hypothesized that poor reproduction and/or survival of very young channel catfish may be attributed to a paucity of spawning habitat (cavities) and possibly to the overabundant white perch population.  Spawning habitat problems and/or predation by white perch on young channel catfish could be suppressing the population.  As a result, fingerling channel catfish stockings will resume in the lake.   

Other sport fish species of interest that were collected during the survey included a 22.5 inch largemouth bass, walleye up to 26 inches, white crappie up to 13 inches, and white perch up to 11 inches (Table 1). The largemouth bass and walleye catches were not an indication of population abundances since largemouth bass are not readily caught in trap nets and since June is not an ideal time to catch walleye in the nets.

Lake Galena is located within the 1,500 acre Peace Valley Park.  Peace Valley Park is part of the Bucks County Park System.  Biologists observed light angler use and recommend Lake Galena to anglers searching for new waters to fish.  Motors are restricted to electric only at the lake.

White crappie
13-inch white crappie

White perch and bluegills
White perch and bluegills

Walleye
26-inch walleye

Largemouth bass
22.5-inch largemouth bass

Table 1. Fish species collected from June 26 to 27 in trap nets at Lake Galena, Bucks County.

Black Crappie 64 3 – 12
Bluegill 239 2 – 7
Brown Bullhead 4 12 – 16
Channel Catfish 73 17 – 28
Common Carp 2 NM
Gizzard Shad 1,353 NM
Largemouth Bass 2 16 – 22.5
Pumpkinseed 8 5 – 7
Walleye 4 17 – 26
White Crappie 25 6 – 13
White Perch 2,597 4 – 11, most 7 to 8
White Sucker 30 NM
Yellow Bullhead 4 6 – 11
NM = Not measured
 
-- Area 6

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