ST. MARYS RIVER NEAR GARDEN RIVER
ST. MARYS RIVER ON WSC
ST. MARYS RIVER NEAR GARDEN RIVER (02CA003) is a real-time streamflow monitoring station on the ST. MARYS RIVER in ON, operated by the Water Survey of Canada. Riverbot tracks its streamflow and publishes a 7-day flow forecast so anglers know when conditions line up. 44 fish species are associated with this station in public fish records.
- WSC station ID
- 02CA003
- Operated by
- Water Survey of Canada
- Province
- ON
- Coordinates
- 46.5326, -84.1312
Live conditions & history
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7-day weather
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Fishing regulations
FMZ 10 zone defaultSpecies regulated in this area
These are species and groups covered by the applicable area rules, not a claim that they occur at this station.
Default rules for this area. A grey row means the current season status is not confirmed by this release.
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Brown trout Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 5
- Conservation licence catch-and-possession limit
- 2
Official rule · retrieved Jul 25, 2026
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Channel catfish Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 12
- Conservation licence catch-and-possession limit
- 6
Official rule · retrieved Jul 25, 2026
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Crappie Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 30
- Conservation licence catch-and-possession limit
- 10
Official rule · retrieved Jul 25, 2026
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Lake whitefish Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 12
- Conservation licence catch-and-possession limit
- 6
Official rule · retrieved Jul 25, 2026
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Largemouth and smallmouth bass combined Open · Harvest allowed within limits Jun 20 – Nov 30 Details
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Jun 20 – Nov 30
- Sport licence catch-and-possession limit
- 6
- Conservation licence catch-and-possession limit
- 3
Official rule · retrieved Jul 25, 2026
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Muskellunge Open · Harvest allowed within limits Jun 20 – Dec 15 Details
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Jun 20 – Dec 15
- Sport licence catch-and-possession limit
- 1
- Size rule
- must be greater than 122 centimetres
Official rule · retrieved Jul 25, 2026
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Northern pike Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 6
- Conservation licence catch-and-possession limit
- 2
- Size rule
- not more than 1 greater than 61 centimetres none greater than 86 centimetres ; none greater than 61 centimetres
Official rule · retrieved Jul 25, 2026
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Pacific salmon Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 5
- Conservation licence catch-and-possession limit
- 2
Official rule · retrieved Jul 25, 2026
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Rainbow trout Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 2
- Conservation licence catch-and-possession limit
- 1
Official rule · retrieved Jul 25, 2026
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Splake Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 5
- Conservation licence catch-and-possession limit
- 2
Official rule · retrieved Jul 25, 2026
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Sunfish Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 50
- Conservation licence catch-and-possession limit
- 25
Official rule · retrieved Jul 25, 2026
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Walleye and sauger combined Open · Harvest allowed within limits May 16 – Dec 31; Jan 1 – Mar 15 Details
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May 16 – Dec 31
- Sport licence catch-and-possession limit
- 4
- Conservation licence catch-and-possession limit
- 2
- Size rule
- none greater than 46 centimetres
Official rule · retrieved Jul 25, 2026
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Yellow perch Open · Harvest allowed within limits Open all year Details
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Open all year
- Sport licence catch-and-possession limit
- 50
- Conservation licence catch-and-possession limit
- 25
Official rule · retrieved Jul 25, 2026
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Atlantic salmon Closed Jan 1 – Sep 30 Details
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Jan 1 – Sep 30
- Sport licence catch-and-possession limit
- 1
Official rule · retrieved Jul 25, 2026
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Brook trout Closed Jan 1 – Sep 30 Details
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Jan 1 – Sep 30
- Sport licence catch-and-possession limit
- 5
- Conservation licence catch-and-possession limit
- 2
Official rule · retrieved Jul 25, 2026
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Lake sturgeon Closed Closed all year Details
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Closed all year
Official rule · retrieved Jul 25, 2026
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Lake trout Closed Jan 1 – Sep 7 Details
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Jan 1 – Sep 7
- Sport licence catch-and-possession limit
- 2
- Conservation licence catch-and-possession limit
- 1
- Size rule
- not more than 1 greater than 40 centimetres
Official rule · retrieved Jul 25, 2026
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Effective Jan 1, 2026 – Sep 14, 2027 · evaluated for 2026-10-26 in America/Toronto
Regulations shown are for reference only and may not reflect in-season changes. Always verify current regulations with the Ontario Fishing Regulations Summary before fishing.
Fish recorded near this station
Sampled in this watershedST. Marys River Near Garden River has documented fish occurrence data from Ontario provincial surveys (Aquatic Resource Area Survey Point, LIO Open Data). The survey records 44 species from observation sampling near this station.
Species include: Lake Sturgeon (Acipenser fulvescens), Alewife (Alosa pseudoharengus), Rock Bass (Ambloplites rupestris), Brown Bullhead (Ameiurus nebulosus), Longnose Sucker (Catostomus catostomus), and 39 others.
- Lake Sturgeon Acipenser fulvescens
- Alewife Alosa pseudoharengus
- Rock Bass Ambloplites rupestris
- Brown Bullhead Ameiurus nebulosus
- Longnose Sucker Catostomus catostomus
- White Sucker Catostomus commersonii
- Northern Redbelly Dace Chrosomus eos
- Finescale Dace Chrosomus neogaeus
- Mottled Sculpin Cottus bairdii
- Slimy Sculpin Cottus cognatus
- Brook Stickleback Culaea inconstans
- Northern Pike Esox lucius
- Iowa Darter Etheostoma exile
- Johnny Darter Etheostoma nigrum
- Threespine Stickleback Gasterosteus aculeatus
- Brassy Minnow Hybognathus hankinsoni
- Silver Lamprey Ichthyomyzon unicuspis
- Longnose Gar Lepisosteus osseus
- Pumpkinseed Lepomis gibbosus
- American Brook Lamprey Lethenteron appendix
- Common Shiner Luxilus cornutus
- Smallmouth Bass Micropterus dolomieu
- Largemouth Bass Micropterus salmoides
- Shorthead Redhorse Moxostoma macrolepidotum
- Golden Shiner Notemigonus crysoleucas
- Blacknose Shiner Notropis heterolepis
- Spottail Shiner Notropis hudsonius
- Rosyface Shiner Notropis rubellus
- Mimic Shiner Notropis volucellus
- Coho Salmon Oncorhynchus kisutch
- Rainbow Trout Oncorhynchus mykiss
- Chinook Salmon Oncorhynchus tshawytscha
- Yellow Perch Perca flavescens
- Logperch Percina caprodes
- Trout-Perch Percopsis omiscomaycus
- Sea Lamprey Petromyzon marinus
- Bluntnose Minnow Pimephales notatus
- Fathead Minnow Pimephales promelas
- Blacknose Dace Rhinichthys atratulus
- Longnose Dace Rhinichthys cataractae
- Brook Trout Salvelinus fontinalis
- Walleye Sander vitreus
- Creek Chub Semotilus atromaculatus
- Central Mudminnow Umbra limi
5 additional record(s) were reported as unidentified or mixed-taxa observations and are not resolved to species.
Where these records come from
- Evidence
- Sampled in this watershed
- Fish were sampled elsewhere in the same watershed — a provincial or federal survey nearby, not at the gauge itself.
- Records
- 44 species
- from 49 individual records
- Observed
- Jun 15, 2001 – Oct 18, 2024
- 44 dated records