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Benthophilus mahmudbejovi, Small-spine tadpole-goby
Common name (e.g. trout)
Genus + Species (e.g. Gadus morhua)
No image available for this species;
drawing shows typical fish in this Family.
Classification / Names
| Catalog of Fishes (
Actinopterygii (ray-finned fishes) >
(Gobies) > Gobiinae
Greek, benthos = depth of the sea + Greek, phyle, that loves (Ref.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; demersal; depth range 1 - 50 m (Ref.
). Temperate; 49°N - 36°N, 37°E - 55°E
Eurasia: Caspian eastern coast of Caspian Sea and Volga delta, up to Volgograd.
Size / Weight / Age
range ? - ? cm
Max length : 6.6 cm TL male/unsexed; (Ref.
); max. reported age: 1 years (Ref.
This species is distinguished from its congeners by the following characters: strongly depressed head; a tubercle between eyes; numerous, densely-set granules covering whole body except abdominal area; small tubercles especially on head; tubercles in dorsal row 26-29, ventral row 21-24, upper lateral row up to 20 (smaller on caudal peduncle), in lower one 10 and are tiny; chin barbel slightly compressed with thick base, longer than half eye diameter; D1 IV; origin of D2 behind anal origin; transverse rows of neuromasts on flank usually 20-22; a dark spot often in front of D2; sides with dark blotches and irregular dots (Ref.
Occurs in fresh and brackish waters with salinity up to 13 ppt. Maximum depth 50 m, with mature adults at 1-11 m. Lives for about a year, spawns in May-August in northern Caspian, April-November in eastern Caspian. Some individuals may spawn for the first time at 6-7 months. Females probably lay eggs in 3 portions and die after spawning while males probably die 3-4 weeks alter (Ref.
Life cycle and mating behavior
Females probably lay eggs in 2-3portions (Ref.
, 1990. A working list of fishes of the world. Copies available from D.E. McAllister, Canadian Museum of Nature, P.O. Box 3443, Ottawa, Ontario K1P 6P4, Canada. 2661 p. plus 1270 p. Index. (Ref.
IUCN Red List Status (Ref.
Least Concern (LC)
; Date assessed:
01 January 2008
Threat to humans
Stamps, Coins Misc.
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Websites from users
Catalog of Fishes
) | GloBI |
| IGFA World Record |
Otolith Atlas of Taiwan Fishes
| Reef Life Survey |
Tree of Life
) | World Records Freshwater Fishing |
Estimates based on models
Phylogenetic diversity index (Ref.
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref.
Trophic Level (Ref.
): 3.3 ±0.3 se; Based on size and trophs of closest relatives
): High, minimum population doubling time less than 15 months (tm<1).
): Low vulnerability (10 of 100) .
Torres, Armi G.
Luna, Susan M.
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- 20 July 2016
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