Galaxiella nigrostriata (Shipway, 1953)
Blackstriped dwarf galaxias
Galaxiella nigrostriata
photo by Berra, T.M.

Family:  Galaxiidae (Galaxiids), subfamily: Galaxiinae
Max. size:  4.4 cm TL (male/unsexed); 4.8 cm TL (female); max. reported age: 1 years
Environment:  demersal; freshwater
Distribution:  Eastern Indian Ocean: Western Australia (from Augusta to Albany, and three remnant populations - Near Bunbury, Melaleuca Park north of Perth and Lake Chandala north of Muchea).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 6-8; Anal spines: 0-0; Anal soft rays: 8-11; Vertebrae: 38-43
Biology:  Occur in slow-running, tea-colored streams usually in sandy areas. Also found in swamps, small ponds and roadside ditches. Also lives in the vegetated shallows of some freshwater lakes. Water is typically acidic (pH 4.5-6.5) and darkly tannin-stained. An inhabitant of temporary waters, capable of aestivating in damp bottom sediments over summer. Spawning habits similar to G. munda. Most individuals perish after their first spawning (Ref. 44894). Feed on small insects, larvae of aquatic insects and micro-crustaceans. Breeding is associated with winter rains. Males take on a bright color pattern at the start of the breeding season (Ref. 33842).
IUCN Red List Status: Endangered (EN); Date assessed: 09 January 2019 (B2ab(i,ii,iii,iv,v)) Ref. (130435)
Threat to humans:  harmless


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