Swan River Fishing Rules: What to Check Before You Go

The Swan and Canning rivers are one of the best urban fisheries in the country, and one of the most heavily regulated patches of water in Perth. Rules here are not the same as the rules ten kilometres out off Trigg, and that catches people out constantly. This article walks through the structure of Swan-specific rules without quoting specific numbers. Those shift, and knowing the current ones is on you. The only source worth trusting is DPIRD, and you should be checking it before every trip.

The Swan Has Its Own Rulebook

The Swan-Canning estuary is managed differently from open coastal waters. Size limits, bag limits and gear restrictions inside the river can be tighter or structured differently than what applies offshore. A bloke who bags out on yellowfin whiting on a metro beach and assumes the same applies in the river is setting himself up for a fine. Black bream, mulloway, cobbler, prawns, crabs and mullet each have their own treatment.

When you read the DPIRD rules, find the estuary or Swan-Canning section, not just the species entry. Read both. If they disagree, the estuary-specific rule usually wins inside the river — but read it yourself on the current DPIRD page.

Closed Waters: Signage Matters More Than Memory

There are parts of the Swan where you simply cannot fish. Fish ladders, some bridge structures, certain mooring areas, marine infrastructure zones and signed reserves are all off-limits. The authoritative list is DPIRD’s closed waters page — combined with any sign bolted to the pylon in front of you.

That sign is the one that matters. There’s always one bloke fishing three metres from a “No Fishing” sign, rod in hand, swearing blind he didn’t see it. Fisheries officers have heard that speech nine million times and remain unconvinced. If you’re unsure whether a spot is open, the default answer is don’t fish there until you’ve checked DPIRD. The fines are not trivial, and they scale quickly if you’ve also got undersize fish in the esky.

Crabs: Blue Swimmers Have Their Own Regime

Blue swimmer crab is a great summer drawcard, and crabs are treated as a separate fishery from finfish. Own size limit, own bag limit, own gear rules for scoop and drop nets, and specific sanctuary zones where crabbing is not permitted at all. There are also seasonal closures that have moved around in recent years as the stock has been rebuilt.

If you crab the Swan, the DPIRD crab page is essentially mandatory pre-trip reading. Carry a proper crab gauge — not a guess with a thumb. Berried females (carrying eggs under the tail) go back every time, everywhere, regardless of size. That’s not negotiable anywhere in WA.

Black Bream: The Spawning Consideration

Black bream spawn inside the river during the cooler months. Fish concentrate in predictable places during the spawning window, which makes them vulnerable if hammered too hard in the wrong spots. The rules on bream reflect that this is a slow-growing, estuary-locked species with only one river system to work with.

Beyond the legal minimum there’s an ethics layer. Spots like Narrows Bridge and the deeper middle-reach pylons hold big pre-spawn fish through autumn and early winter, and a couple of released females goes a long way. Read the current rules at DPIRD, then decide what you’re taking home on top of that.

Net Fishing: Mostly Not Allowed

The Swan is not a netting fishery for rec anglers. Haul nets, gill nets and similar gear are prohibited across most of the system. Narrow allowances exist — scoop nets for prawns in season, drop and scoop nets for crabs, landing nets obviously — but anything resembling a set net is off the table. If you’re used to netting prawns or mullet elsewhere in Australia, none of that applies here. Check the gear rules on DPIRD and be suspicious of “mate told me” advice. Mate is often wrong, and mate is not the one copping the fine.

Tinnies, Traffic and River Safety

If you’re fishing from a tinny, the river is also under DoT rules — speed zones, no-wash areas, keeping clear of ferries, safety gear. The Swan on a Sunday arvo in summer resembles a freeway that forgot to install lanes. Wake boats, jet skis, training sculls, ferries, paddle boarders and the occasional bloke on an inflatable flamingo all converge, and a tinny anchored up drifting baits for mulloway is the smallest object in that mix. Anchor sensibly, show the right lights at dawn or dusk, and carry the safety gear you’re required to carry. Fisheries and DoT officers share notes.

Spots to Know, Rules to Respect

A few spots worth flagging. Ashfield Flats is a cracker for bream and whiting on a rising tide, and it sits in a sensitive estuary reserve — mind where you park and how you access the bank. Point Walter is the Hillarys of the estuary on a school holiday — sandbar swimmers, kayaks, paddleboards, at least one birthday party, and you trying to land a bream off the drop-off. Fish early or fish elsewhere. Bicton Baths lets you cover jetty structure and deeper water without a boat, but watch for swimmers and swim-area markers. Wherever you end up, if a sign says you can’t fish there, you can’t fish there.

The Bottom Line

The Swan is generous if you respect it. The rules exist because the system is small, heavily used, and shared with a lot of other water users — and because a couple of key species only live here and have nowhere else to go if the fishery gets mismanaged. Check DPIRD before every trip, read the signs in front of you, and fish like the bloke fishing next to you is a fisheries officer, because one day he will be.

Check current Swan River rules, closed waters and crab regulations at DPIRD’s fisheries site, then line up tide, wind and solunar for your chosen spot on BiteCompass. Five minutes of prep saves a world of grief on the bank.