Marron can be mistaken for other crustaceans from the same genus such as Koonacs and Gilgies, but can generally be distinguished by their dark brown colour, smaller claws, five distinctive keels/markings on the head, two spines on the tail and they tend to reach larger sizes than their relatives. Marron can reach up to 40cm in length and 2kg, although most are caught well below this.
Found only in Western Australia, their natural distribution is from Harvey to Albany, although significant introductions have extended this range to just north of Geraldton in the north an around Esperance in the south. Marron are now found in freshwater river systems and dams through-out the southwest.
Rigs and Techniques
Depending on where you are fishing you may be able to use drop nets, scoop nets or snares. Snares are probably the most common method and firstly involves making a make-shift snare. This usually involves getting an old rod with the guides removed or a long pole and attaching a piece of stiff wire such as plastic-coated electrical wire attached to the pole and looped into a slip knot.
The actual fishing involves sneaking up on a marron, slipping the snare around the marron’s tail, as you do this the marron will try to escape by propelling itself with its tail which will pull the slip knot tight around its tail. Marron tend to be more active at night, so catching them requires a flashlight or headlight.