Volga dwarf goby (Hyrcanogobius bergi) fish species and information / pictures of Volga dwarf goby - Hyrcanogobius bergi

Volga dwarf goby (Hyrcanogobius bergi) fish species information

Scientific Name
Hyrcanogobius bergi

Common Name
Volga dwarf goby

Biology
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).

Classification

Classified By
Iljin, 1928
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Gobies (Gobiidae)

Distribution

Region
Europe and Asia
Distribution
Europe and Asia: endemic to the Caspian Sea.
Range
48°N - 36°N, 46°E - 54°E

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
demersal
Environment
Marine; freshwater; brackish; demersal
Trophic Level
3.15 s.e. 0.47 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
3.6 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (13 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Least Concern (LC)