Blue Swimmer Crab illustration
Species

Blue Swimmer Crab

Portunus armatus
Tier 2Eating9/10ultralight tackleNSWVICQLDSAWANT
13 waypoints12–18 cm (max 25 cm) typical

Regulations

NSW7 cm min · bag 20QLD12 cm min · bag 10SA11 cm min · bag 20WA13 cm min · bag 10
StateSizeBag
NSW7 cm min20
QLD12 cm min10
SA11 cm min20
WA13 cm min10

Regulations change. Always verify with the relevant state fisheries authority before fishing.

Overview: about blue swimmer crab

Coastal crab of bays, estuaries and beaches across most of Australia. Targeted with hoop nets, witches hats (where legal) or scoop nets over weed and sand flats — also caught on bait while fishing for whiting. Size and bag limits and gear rules vary widely by state.

Biology: Blue Swimmer Crab size, diet & habitat

Habitat
Beach, Estuary, Inshore
Typical size
12–18 cm (max 25 cm)
Weight
0.3–0.7 kg (max 1.2 kg)
Depth range
0–50 m
Diet
small fish, molluscs, detritus
Most active
nocturnal
Global range
Indo-West Pacific

How to target: Blue Swimmer Crab angling strategies

Generally fished with ultralight tackle — match gear to the conditions and the size of fish you expect.

  • witches hats and hoop nets baited with mullet frames on sandy estuary bottoms
  • scoop netting at low tide on seagrass flats
  • drop nets off jetties on a tide change

Safety & handling

Powerful claws — pin from behind.

Recent community catches: anglers who caught blue swimmer crab

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Where to catch: blue swimmer crab fishing spots in Australia

More information: blue swimmer crab references & sources