Caspian tadpole goby (Benthophilus macrocephalus) fish species and information / pictures of Caspian tadpole goby - Benthophilus macrocephalus

Caspian tadpole goby (Benthophilus macrocephalus) fish species information

Scientific Name
Benthophilus macrocephalus

Common Name
Caspian tadpole goby

Biology
This species is distinguished from its congeners by the following characters: tubercles larger than granules, tubercles of equal size in dorsal row 24-26, ventral row 21-22, upper lateral row up to 20 but the lower one is usually absent; numerous granules, densely set and appearing as small spines covering head, back, flanks and caudal peduncle; a semicircular patch of granules along upper eye margin; chin barbel thick and conical; D1 III-IV; body plain grey (Ref. 59043).

Classification

Classified By
Pallas, 1787
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Gobies (Gobiidae)

Distribution

Region
Former USSR and Asia
Distribution
Former USSR and Asia: Caspian Sea. Common in the Volga delta near Astrakhan.
Range
51°N - 38°N, 45°E - 57°E

Environment

Climate
Temperate
Water Temperature From
4 °C
Water Temperature To
20 °C
Depth From - meters
0 m
Depth To - meters
25 m
Zone
demersal
Environment
Freshwater; demersal; depth range 0 - 25 m (Ref. 59043)
Trophic Level
3.34 s.e. 0.50 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
11.6 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries:
Vulnerability
Low vulnerability (15 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)