Galaxiella toourtkoourt, Little galaxias

Galaxiella toourtkoourt Coleman & Raadik, 2015

Little galaxias
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Image of Galaxiella toourtkoourt (Little galaxias)
No image available for this species;
drawing shows typical species in Galaxiidae.

klasifikasi / Nama Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa

> Galaxiiformes (Southern smelts) > Galaxiidae (Galaxiids) > Galaxiinae
Etymology: Galaxiella: Greek, galaxias, ou = a kind of fish, diminutive (Ref. 45335); toourtkoourt: The specific name is derived from the Australian indigenous language groups Tjapwurrung, Korn Kopan noot, and Peekwurrung, meaning 'little fish in freshwater'.

Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi Ekologi

; air tawar; payau dasar (demersal); pH range: 5.3 - 9.3; nir-ruaya. Tropical; 5°C - 27°C (Ref. 104902)

Penyebaran Wilayah | Daerah-daerah FAO | Ekosistem | Kemunculan | peta titik | Introduksi | Faunafri

Oceania: southeastern mainland Australia from the upper Barwon River system near Barwon Downs, Victoria, west to the Cortina Lakes, near the Coorong, South Australia.

Ukuran / Berat / umur

Kematangan: Lm ?  range ? - ? cm
Max length : 3.4 cm TL jantan/; (Ref. 104902); 4.2 cm TL (female)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

duri punggung lunak (Keseluruhan (total)) : 5 - 8; Sirip dubur lunak: 7 - 10; vertebrata, bertulang belakang: 34 - 38. Galaxiella toourtkoourt can be diagnosed from other congeners by following characters: caudal fin rays usually 13 (12-15); anal fin rays usually 8 (7-10); pectoral fin rays usually 12 (8-13); usually 36 (34-38) vertebrae; and 7 laterosensory pores in the preopercular-supramaxillary series. Adults very small (usually 2.06-3.06 cm SL in females; 1.67-2.40 cm SL in males); short caudal peduncle usually 19.6-21.9 % SL (17.2-23.8 % SL in females; 17.9-24.4 % SL in males); origin of dorsal fin more or less in line with anal fin (particularly females) with horizontal distance between dorsal fin and anal fin origins usually 0.0-2.7 % SL (2.5-2.8 in females; 2.6-3.9 in males). Adults possess three longitudinal black stripes (easier to discern in adult males) and reduced markings on ventral surface (typically two to three black blotches at isthmus) (Ref. 104902).
Body shape (shape guide): elongated.

Biologi     Daftar kata (contoh epibenthic)

Facultative air-breathing in the genus (Ref. 126274); Occurs in swamps, wetlands, shallow lakes, billabongs, small creeks and artificial earthen drains at low elevation (mean 100 m above sea level, typically 22-176 m above sea level). Inhabits mostly shallow areas (mean maximum depth 1.1 m, typically 0.5-2.0 m), with still to low water velocities (or often backwaters in faster flowing conditions) and partial shading (mean 27 %, typically 5-50 % surface cover). Occasionally found in inland with slightly saline waters. Water quality measurements at the time of collection indicate this species can thrive in a broad range of conditions: water temperatures 5.2-26.9 °C; dissolved oxygen levels of 20-263 % saturation; pH of 5.3-9.3; water electrical conductivity of 94-13,620 μS/cm and turbidity of 1-96 NTU . Usually collected together with other native fish species, particularly Nannoperca australis (65 % frequency), Galaxias maculatus (12 % frequency), and burrowing crayfish (e.g. Engaeus spp., Geocharax spp.) (18 % frequency). Often found with introduced fish species Gambusia holbrooki (Ref. 104902).

Siklus hidup dan perilaku kawin Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva

rujukan utama Unggah referensi Anda | Acuan | Koordinator : Berra, Tim M. | mitra

Coleman, R.A., A.A. Hoffmann and T.A. Raadik, 2015. A review of Galaxiella pusilla (Mack) (Teleostei: Galaxiidae) in south-eastern Australia with a description of a new species. Zootaxa 4021(2):243-281. (Ref. 104902)

Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))

  Rentan (VU) (B2ab(i,iii)); Date assessed: 13 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

  Harmless





penggunaan manusia

FAO - Publication: search | FishSource |

informasi lanjut

Ekologi trofik
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Sumber internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | semak peneliti ikan | CISTI | Catalog of Fishes: Marga, Jenis | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: pergi, Cari | World Records Freshwater Fishing | Zoobank | Catatan Zoologi

Estimasi berdasarkan model

Indeks keanekaragaman filogenetik
(Acuan 82804) 		PD50 = 0.5625 [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).
Tingkat Trofik
(Acuan 69278) 		3.1   ±0.3 se; based on size and trophs of closest relatives
Daya lenting
(Acuan 120179) 		Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Kerentanan Penangkapan Ikan
(Ref. 59153) 		Low vulnerability (10 of 100). 🛈