Redfin Perch (Perca fluviatilis)
Freshwater species found in South Australia. Established in many freshwater waterways including the River Murray.
Redfin Perch is an aggressive species of perch that preys on native, small bodied fish and invertebrates. It must not be returned to the water when caught.
Declared noxious under the Fisheries Management Act 2007. Noxious species are a severe threat to the natural environment and industries. They cannot be held or traded in South Australia without specific authorisation and must not be returned to the water if caught.
Characteristics:
- Deep body and a slightly forked tail
- 2 distinctly separate dorsal fins, the first with 12-17 strong spines and a distinct black blotch at the rear
- Pattern of 5 or more broad black vertical bands across the back, tapering on the sides (more prominent in younger fish)
- Bright reddish-orange pelvic and anal fins and tail
- Body colour varies from olive green to grey on the back, fading to greenish or silvery on the sides, and whitish on the belly
- Up to 60 cm in length and around 10 kg in weight, but more commonly found up to 45 cm and 1 to 2 kg