>
Galaxiiformes (Southern smelts) >
Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxias: Greek, galaxias, ou = a kind of fish (Ref. 45335); supremus: Name from Latin 'supremus', meaning highest, uppermost, referring to this species being found at the highest elevation of all the Galaxiidae, at over 2000 m asl on Mount Kosciuszko, Australia’s
highest mountain..
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Nước ngọt Sống nổi và đáy; không di cư; Mức độ sâu 0 - 1 m (Ref. 98815). Subtropical
Oceania: Australia.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 9.6 cm FL con đực/không giới tính; (Ref. 98815); Khối lượng cực đại được công bố: 8.00 g (Ref. 98815)
Short description
Hình thái học | Sinh trắc học
Các vây lưng mềm (tổng cộng): 9-11; Tia mềm vây hậu môn: 10 - 12; Động vật có xương sống: 52 - 58. This species is distinguished from its congeners within the Galaxias olidus complex by the following characters: pelvic fin with 8 segmented rays; mean vertebral count very high 57, with broad range (52-59); distinct subterminal mouth; dorsal, anal and pelvic fin origins are set far back along trunk (70.4-75.1, 74.8-80.2 and 49.7-55.6 % SL respectively); distance between pectoral and pelvic fin bases is long (27.8-35.7 % SL); body depth shallow (8.4-12.4 % SL), much greater through pectoral fin base (11.8-16.4 % SL) than that through vent; caudal peduncle is very short and shallow (10.0-12.7 and 6.3-8.9 SL respectively); caudal fin much longer (120 %) than caudal peduncle; snout long (26.7-34.9 % HL); eye small (13.1-20.7 % HL); nostrils short and not visible from ventral view; anal fin base short (8.7-10.9 % SL); dorsal and anal fins short (12.6-15.9 and 13.1-15.9 % SL respectively); dorsal midline usually flattened anteriorly from above or slightly posterior to pectoral fin bases; posterior extent of mouth about 0.8 eye diameter below ventral margin of eye; usually 2, occasionally 1; pyloric caecae of moderate length (4.6 % SL); gill rakers are short to moderately long; anal fin origin usually under 0.85 distance posteriorly along dorsal fin base (greatest setback in all members of the species complex); no distinct black bars along lateral line though, very occasionally, dark patches on dorsal midline may have a very small, black bar in the centre; and, distinctive, mottled colour pattern (Ref. 98815).
Facultative air-breathing in the genus (Ref. 126274); A freshwater fish that is unable to undertake diadromous migrations. Collected from cold and clear water in small flowing creeks (0.6-1.1 m average width, 0.1-0.2 m average depth, 0.5-0.6 m maximum depth) and from an on-stream lake (Blue Lake). All sites during winter are covered by snow and ice for an extended period of time. Substrate in the creeks consisted of bedrock, boulder, cobble, gravel and sand while the lake with cobble, pebble, gravel and silt.The fish is collected among rock, undercut banks and overhanging grasses in the creeks, mainly from pools. In Blue Lake, collected among small cobbles and from within 2 m of the shoreline (location and habitat in deeper water unknown). All sites without emergent or submerged aquatic vegetation or overhead shading. Collected at a density of 4.5 fish/m2 in Carruthers Creek, 2.5 fish/m2 along the edges of Blue Lake, and 1.5 fish/m2 in an inflowing tributary to Blue Lake. It is the only native fish species so far recorded from within its range, although Galaxias olidus is presumed to be present nearby. It is collected in Carruthers Creek with an unidentified native spiny crayfish Euastacus sp. (possibly E. rieki) (Ref. 98815).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Raadik, T.A., 2014. Fifteen from one: a revision of the Galaxias olidus Günther, 1866 complex (Teleostei, Galaxiidae) in south-eastern Australia recognises three previously described taxa and describes 12 new species. Zootaxa 3898(1):001-198. (Ref. 98815)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Thêm thông tin
Age/SizeSự sinh trưởngLength-weightLength-lengthLength-frequenciesSinh trắc họcHình thái họcẤu trùngSự biến động ấu trùngBổ xungSự phong phúBRUVS
Các tài liệu tham khảoNuôi trồng thủy sảnTổng quan nuôi trồng thủy sảnCác giốngDi truyềnElectrophoresesDi sảnCác bệnhChế biếnNutrientsMass conversion
Các công cụ
Special reports
Download XML
Các nguồn internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00205 - 0.01170), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
