Galaxias gunaikurnai, Shaw Galaxias

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Galaxias gunaikurnai Raadik, 2014

Shaw Galaxias
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Image of Galaxias gunaikurnai (Shaw Galaxias)
No image available for this species;
drawing shows typical species in Galaxiidae.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Galaxiiformes (Southern smelts) > Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxias: Greek, galaxias, ou = a kind of fish (Ref. 45335);  gunaikurnai: Named for Gunai/Kurnai indigenous nation, the traditional inhabitants of the Gippsland region of Victoria. It is found within the country of the Brayakuloong people, one of the five major clans; noun in apposition..

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 底中水层性; 非迁移的; 深度上下限 0 - 1 m (Ref. 98815).

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Oceania: Australia.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 10.4 cm FL 雄鱼/尚未辨别雌雄; (Ref. 98815); 最大体重: 11.00 g (Ref. 98815)

简单描述 型态特徵 | 形态测量图

背的软条 (总数): 8-10; 臀鳍软条: 9 - 11; 脊椎骨: 52 - 55. This species is distinguished from all other species of the Galaxias olidus complex by the following set of characters: dorsal fin set far back (pre-dorsal fin length about 70.4-74.1 % SL); the long distance between pectoral and pelvic fin bases (30.8-33.8 % SL); caudal fin is shorter than caudal peduncle length and vertical width of expanded caudal fin rays about the same as the body depth through the pectoral fin base; caudal peduncle flanges just reaching adpressed anal fin rays; short head (20.0-20.7 % SL), distinctly shorter than pelvic fin to anal fin length distance, but wide (66.2-71.2 % HL) and deep (44.2-49.9 % SL); snout long (29.2-32.0 % HL); nostrils are short and not visible from ventral view; eye relatively small (16.6-17.8 % HL); inter-orbital gap broad (39.2-41.2 % HL); most posterior extent of mouth usually 0.8 eye diameter below ventral margin of eye; dorsal and anal fin bases are short (8.3-10.1 and 8.8-10.7 % SL), with anal fin length/length of anal fin base ratio high (147-163 %); anal fin origin usually under 0.74 distance posteriorly along dorsal fin base; anal fin segmented ray count often 10; gill rakers are moderately long and usually pointed; usually 1, sometimes 2 stout and wide pyloric caecae of moderate length (2.0 % SL); absence of black midlateral bars (Ref. 98815).

生物学特性     字汇 (例如 epibenthic)

Facultative air-breathing in the genus (Ref. 126274); A freshwater fish not able to undertake diadromous migrations. In 2002, it was recorded from a small (0.6-1.4 m average width and 0.15-0.20 m in average depth), cool, clear, alpine creek, flowing through a grassy plain, consisting of pools, glides and riffles, with smaller amounts of small cascades, and with very little shading except that provided by grasses. During the winter the catchment is usually covered by snow for varying periods of time. Substrate consisted of bedrock, boulder and cobble, with smaller amounts of pebble, gravel and coarse sand. The instream cover was provided mainly by rock and from bank and vegetation (alpine grasses) overhang, and pools averaged 0.5 m in depth. Recorded densities of 0.05-0.18 fish/m2 and it is the only native fish species so far recorded from within its range (Ref. 98815).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼


主要参考文献 Upload your references | 参考文献 | 合作者 : Berra, Tim M. | 合作者

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)

世界自然保护联盟红皮书 (Ref. 130435)

  极度濒危 (CR) (A2abce+3ce; B1ab(i,ii,iii,iv,v)+2ab(i-v); C1); Date assessed: 14 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 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).
营养阶层 (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).