Lake Arthur (Moraine State Park)

Latest PFBC survey (April 2022)

• Trap nets captured 73 Muskellunge measuring 28 to 47 inches. (p. 2)
• The catch included 41 Hybrid Striped Bass with an average length of 21 inches. (p. 2)
• Trap nets captured 92 Walleye measuring 8 to 26 inches. (p. 2)
• Trap nets captured 1194 Channel Catfish measuring 9 to 31 inches. (p. 2)

PFBC Biologist Report: Lake Arthur 2022

On PFBC's 2026 trout schedule (as published Oct 4, 2026)

Not on the 2026 schedule.

Fish consumption advice (2026 list)

No lake-specific row.

Statewide: “Pennsylvania has issued a general, statewide health advisory for recreationally caught sport fish: eat no more than one meal (1/2 pound) per week of sport fish caught in the state’s waterways.”

Special regulations (2026 Fishing Summary)

• Big Bass Program: Largemouth, Smallmouth and Spotted Bass: 15-inch minimum and 4 a day (combined) from Jan. 1 through April 10 and from June 13 through Dec. 31; catch and immediate release only from April 11 through June 12, with no tournaments. Other species follow inland rules. (2026 Fishing Summary, p. 11)