Important notices

Mandatory retention

Mandatory retention — Muskellunge

Mandatory retention of Muskellunge is required under your fishing licence effective April 1, 2026. Muskellunge is lis...

Read Advisory
Mandatory retention

Mandatory retention — Black Crappie

Mandatory retention of Black Crappie is required under your fishing licence effective April 1, 2026. Black Crappie is...

Read Advisory

St. Croix River, Southwest — Fishing restrictions

Brook Trout
Season / Restrictions Bag Limit Minimum Size Maximum Size
April 15September 15 Non-boundary waters of rivers, brooks and streams 5 10cm N/A
April 15September 30 Boundary waters between New Brunswick and Maine of rivers, brooks and streams 5 15cm N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Brown Trout
Season / Restrictions Bag Limit Minimum Size Maximum Size
April 15September 15 Non-boundary waters of rivers, brooks and streams 2 15cm N/A
April 15September 30 Boundary waters between New Brunswick and Maine of rivers, brooks and streams 2 15cm N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Burbot
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal waters 10 10cm 100cm
January 1December 30 Tidal waters 10 10cm 100cm
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Chain Pickerel
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal waters 10 10cm 100cm
January 1December 30 Tidal waters 10 10cm 100cm
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Eel
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal waters 10 35cm N/A
January 1December 31 Tidal waters 10 35cm N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Gaspereau
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal waters 20 N/A N/A
January 1December 31 Tidal waters 20 N/A N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Lake Trout
Season / Restrictions Bag Limit Minimum Size Maximum Size
April 15September 15 Non-boundary waters of rivers, brooks and streams 2 45cm N/A
April 15September 30 Boundary waters between New Brunswick and Maine of rivers, brooks and streams 2 45cm N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Landlocked Salmon
Season / Restrictions Bag Limit Minimum Size Maximum Size
April 15September 30 Boundary waters between New Brunswick and Maine of rivers, brooks and streams 2 35cm 63cm
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Rainbow Smelt
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1May 31 Dip Net in non-tidal portions of non-boundary waters 60 N/A N/A
January 1September 30 Non-tidal portions of non-boundary waters 60 N/A N/A
January 1December 31 Non-tidal portions of boundary waters between New Brunswick and Maine 60 N/A N/A
January 1December 31 Tidal portions of boundary waters between New Brunswick and Maine 60 N/A N/A
August 1May 31 Tidal portions of non-boundary waters 60 N/A N/A
April 1May 31 Dip Net in tidal portions of non-boundary waters 60 N/A N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Rainbow Trout
Season / Restrictions Bag Limit Minimum Size Maximum Size
April 15September 15 Non-boundary waters of rivers, brooks and streams 5 15cm N/A
April 15September 30 Boundary waters between New Brunswick and Maine of rivers, brooks and streams 5 15cm N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Shad
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal waters 5 N/A N/A
January 1December 31 Tidal waters 5 N/A N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Smallmouth Bass
Season / Restrictions Bag Limit Minimum Size Maximum Size
April 15September 30 , 2 25cm N/A
October 1October 31 0 25cm N/A
Rivers, brooks and streams from Grand Falls to the Milltown Bridge
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
April 15September 15 Non-boundary waters of rivers, brooks and streams 5 10cm N/A
April 15September 30 Boundary waters between New Brunswick and Maine of rivers, brooks and streams 2 25cm N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Striped Bass
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal waters 1 68cm 150cm
January 1December 29 Tidal waters 1 68cm 150cm
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Sturgeon
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1May 31 , 130cm N/A
July 1December 31 130cm N/A
Fly Fishing in non-tidal waters
January 1May 31 , 130cm N/A
July 1December 31 130cm N/A
Fly Fishing in tidal waters
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
White Perch
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal portions of non-boundary waters 25 10cm 50cm
January 1December 30 Tidal portions of non-boundary waters 25 10cm 50cm
January 1December 31 Non-tidal portions of boundary waters between New Brunswick and Maine 25 10cm N/A
January 1December 31 Tidal portions of boundary waters between New Brunswick and Maine 25 10cm N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Whitefish
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1September 15 Non-tidal portions of non-boundary waters 8 10cm 70cm
January 1September 15 Tidal portions of non-boundary waters 8 10cm 70cm
January 1December 31 Non-tidal portions of boundary waters between New Brunswick and Maine 3 N/A N/A
January 1December 31 Tidal portions of boundary waters between New Brunswick and Maine 3 N/A N/A
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15
Yellow Perch
Season / Restrictions Bag Limit Minimum Size Maximum Size
January 1December 31 Non-tidal waters 100 10cm 50cm
January 1December 30 Tidal waters 100 10cm 50cm
Exceptions
April 15December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown Fly fishing only beginning Apr 15