Hyrcanogobius bergi, Volga dwarf goby

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Hyrcanogobius bergi Iljin, 1928

Volga dwarf goby
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drawing shows typical species in Gobiidae.

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Hyrcanogobius: Composed from Hyrcania, old Persian region near of caspian Sea + Latin, gobius = gudgeon (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Écologie

; eau douce; saumâtre démersal. Temperate; 48°N - 36°N, 46°E - 54°E

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Europe and Asia: endemic to the Caspian Sea.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 1.9, range 2 - 2 cm
Max length : 3.6 cm SL mâle / non sexé; (Ref. 50519); âge max. reporté: 1.00 années (Ref. 59043)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 7; Rayons mous dorsaux (Total): 8-9; Épines anales 1; Rayons mous anaux: 8 - 9. This species is placed under Hyrcanogobius on the basis of slightly different organization of cephalic sensory pores (Ref. 59043).

Biologie     Glossaire (ex. epibenthic)

This near-pelagic coastal marine species is found in areas with different salinities, including freshwater. It lives for a year and matures at 18-20 mm SL. Spawns after first winter, May-June, down to 2-7 m, with females probably laying 2-3 portions of eggs (0.4-1.0 mm), separately attached inside a mollusc shell; and adults dying soon after spawning. Feeds on small crustaceans (Ref. 59043).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Females probably lay 2-3 portions of eggs (Ref. 59043).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997. An annotated check-list of the freshwater fishes of Russia. J. Ichthyol. 37(9):687-736. (Ref. 26334)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 18 February 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00349 - 0.02862), b=3.09 (2.85 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (tm=1).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).