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Galaxias occidentalis  Ogilby, 1899

Western minnow
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Image of Galaxias occidentalis (Western minnow)
Galaxias occidentalis
Picture by Busse, K.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Osmeriformes (Smelts) > Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxias: Greek, galaxias, ou = a kind of fish (Ref. 45335).   More on author: Ogilby.

Environment / Climate / Range Ecology

Freshwater; benthopelagic.   Temperate; 9°C - 26°C (Ref. 33843); 32°S - 35°S

Length at first maturity / Size / Weight / Age

Maturity: Lm 7.3, range 6 - 10 cm
Max length : 19.0 cm SL male/unsexed; (Ref. 44894); common length : 9.0 cm SL male/unsexed; (Ref. 5259); max. reported age: 5 years (Ref. 35368)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 7-10; Anal spines: 0; Anal soft rays: 11 - 14; Vertebrae: 50 - 54. Adults have a flattened head and a flattened snout, and are olive-green dorsally and silver-white ventrally, with dark bars laterally. No scales.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Oceania: endemic to southwestern Western Australia.

Biology     Glossary (e.g. epibenthic)

Found in rocky pools at the base of rapids and waterfalls. Occur around submerged vegetation along the edges of pools or slow-flowing water and sometimes in lakes and ponds (Ref. 6896, 33843). Water is usually clear and fresh or darkly tannin-stained and slightly acidic. Tolerate brackish conditions found in many salt-affected rivers of the south-west. A fast swimming species, forming moderately-sized shoals just above the bottom. With the onset of winter rains, these fish move into small tributaries and feeder streams of rivers and wetlands to spawn among flooded vegetation. Sexual maturity is reached the following autumn (Ref. 44894). Feed mainly on insects and small crustaceans. Considered as the most abundant freshwater fish species in southwestern Western Australia (Ref. 6896, 33843, 44894).

Main reference Upload your references | References | Coordinator : Berra, Tim M. | Collaborators

Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
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Ecology
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Common names
Synonyms
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Ecotoxicology
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Eggs
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Age/Size
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Length-weight
Length-length
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Ciguatera
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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.41 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; tmax=5; Fec=206;).
Vulnerability (Ref. 59153):  Low vulnerability (19 of 100) .
Price category (Ref. 80766):   Unknown.