| | | |
 | River Pot au Beurre (Baie de Lavallière) - That part of the river and its tributaries bounded to the south by the portion of Route 132 between the Richelieu (46°02'30" N., 73°07'01" W.) and Yamaska (46°00'17" N., 72°54'43" W.), north-west of the St. Lawrence River and on the east by the Yamaska River.  |
| |  | PeriodFrom April 1st, 2026 to March 31st, 2027 |
| | | Redhorse  | Fishing prohibited | | | |
| | | Striped bass | Fishing prohibited | | | |
| | | Sucker  | Fishing prohibited | | | |
| | | Yellow perch | Fishing prohibited | | | |
| |  | PeriodFrom May 1st, 2026 to October 31st, 2026  |
| | | Pike  | 1 in all | 56 cm to 70 cm inclusively | Angling only  | |
| |  | PeriodFrom May 10th, 2026 to May 31st, 2026  |
| | | Walleye  | 2 | 37 cm to 53 cm inclusively | Angling only | |
| |  | PeriodFrom June 1st, 2026 to October 31st, 2026  |
| | | Walleye and sauger  | 6 in all with at most 2 walleye | Walleye: 37 cm to 53 cm inclusively
Sauger: no length limit | Angling only | |
| |  | PeriodFrom June 15th, 2026 to October 31st, 2026 |
| | | Bass | 6 in all | | | |
| | | Muskellunge and tiger muskellunge | 1 in all | 137 cm or more | Angling only | |
| | | Sturgeon | 1 in all | Lake sturgeon: 80 cm to 130 cm inclusively
Atlantic sturgeon: no length limit | Angling only | |
| |  | PeriodFrom December 20th, 2026 to March 15th, 2027  |
| | | Bass | 6 in all | | | |
| | | Pike  | 1 in all | 56 cm to 70 cm inclusively | Angling only  | |
| | | Walleye and sauger  | 6 in all with at most 2 walleye | Walleye: 37 cm to 53 cm inclusively
Sauger: no length limit | Angling only | |
| |  | PeriodFrom April 1st, 2026 to October 31st, 2026- Other species |
| | | | same as the zone | | | |
| |  | PeriodFrom December 20th, 2026 to March 15th, 2027- Other species  |
| | | | same as the zone | | | |