Klassifizierung / Names
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: alasanicus: Name 'alasanicus' from the type locality of the species, Alazani River.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch. Subtropical
Verbreitung
Territorien | FAO Gebiete | Ökosysteme | Vorkommen | Punkt Karte | Einführungen | Faunafri
Asia: Georgia.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 6.1 cm SL Männchen/unbestimmt; (Ref. 137637)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Afterflossenstacheln: 1; Afterflossenweichstrahlen: 10 - 12. This species is distinguished by the following set of characters: D - VI, D I / 15½-16½, A I / 10½ - 12½; nape scaled completely, scales cycloid and ctenoid, cycloid scales covering upper part of opercle; lateral line system with suborbital row d continuous; predorsal area is linearly concave in middle; D1 with oblique black stripe between first two or three rays, the tip of the first 3-4 rays is transparent white; one large dark spot at the base of the pectoral fin; ventral disc has oval/elongated shape, short, not reaching anus (Ref. 137637).
Body shape (shape guide): elongated; Cross section: oval.
This species inhabits lowland rivers and swampy habitats with substrate composed of sand and plant. They are specifically found around submerged trees and roots where they feed on aquatic invertebrates (Ref. 137637).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Epitashvili, G., B. Japoshvili and L. Mumladze, 2023. Ponticola alasanicus sp. n. (Gobiiformes, Gobiidae) from the Alazani River Basin, Georgia. Biodiversity Data Journal 11:e101095. (Ref. 137637)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00376 - 0.01926), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (10 of 100).
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