Edelia vittata Castelnau, 1873, Western Australia.
OTHER COMMON NAMES
German: Westaustralischer Zwergbarsch.
Total length less than 2.75 in (7 cm). Body small and somewhat ovate to elongate. Mouth small, caudal fin relatively large and rounded. Color is mottled, variably olive, brown, or gold with two orange stripes on the flank and a whitish belly. Males assume darker colors dorsally, fins become blackish, flanks mottled gold, and orange stripes deepen during breeding season. Females also change color somewhat during breeding season, assuming a bluish tinge over the bodies. Lateral line interrupted and interspersed with tubed scales. There are 7–9 spines and 8–9 soft rays in the dorsal fin, 3 spines and 6–8 soft rays in the anal fin, and 11–13 soft rays in the pectoral fin.
Endemic to the southwestern part of Western Australia; common in a number of coastal drainages, from the Philipps River near the city of Albany, north to the Arrowsmith River, about 186 mi (300 km) north of Perth.
Occurs in a variety of permanent water bodies and is somewhat tolerant of slightly brackish or tannin-stained, as well as clear, waters. Shelters in aquatic vegetation along the shorelines of lakes, ponds, wetlands, rivers, and creeks.
Generally solitary in close association with benthic algae.
FEEDING ECOLOGY AND DIET
Carnivore; feeds on benthic microcrustaceans, and adult and larval insects.
Becomes mature after the first year and lives for about five years. Migrates into smaller tributary creeks or submerged floodplains to spawn between July and November. Females lay demersal eggs in small batches for several weeks during the season.
Not listed by the IUCN, but its relatively limited geographic
could make it vulnerable to habitats destruction.
SIGNIFICANCE TO HUMANS
May be collected as an aquarium fish and also used to control aquatic insects such as mosquitoes.
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