http://www.fishbase.org/Summary/speciesSummary.php?genusname=Chondrostoma&speciesname=oxyrhynchum ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Chondrostoma&speciesname=oxyrhynchum http://192.134.151.83/Summary/speciesSummary.php?genusname=Chondrostoma&speciesname=oxyrhynchum ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Chondrostoma&speciesname=oxyrhynchum https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Chondrostoma&speciesname=oxyrhynchum ---> https://fishbase.mnhn.fr/summary/Chondrostoma-oxyrhynchum.html
Chondrostoma oxyrhynchum, Terek nase
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drawing shows typical species in Leuciscidae.
Teleostei (teleosts) >
Cypriniformes
(Carps) >
Leuciscidae
(Minnows) > Leuciscinae
Etymology:
Chondrostoma:
Greek, chondros = cartilage + Greek, stoma = mouth (Ref. 45335). Name referring to the characteristic horny layer on the lower lip (Ref.
57917
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Temperate
Eurasia: West Caspian basin from Kuma to Samur drainages.
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 12 - ? cm
Max length : 46.0 cm SL male/unsexed; (Ref.
59043
)
Short description
Morphology
|
Morphometrics
Diagnosed from congeners in Black and Caspian Sea basins by the following characters: strongly arched mouth; dorsal fin usually with 8½ branched rays; anal fin with 9-10½ branched rays; scales on lateral line 56-73; eye small, diameter 48-52% of interorbital distance; and body cylindrical, width at dorsal origin 51-69% of depth (Ref.
59043
).
Inhabits piedmont and mountain rivers with strong current and rock to gravel bottom. Feeds predominantly on detritus and also on periphytic algae and benthic invertebrates, especially during first year of live. Spawns over hard bottom (Ref.
59043
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Females deposit eggs probably in several portions. Eggs adhere to gravel (Ref.
59043
).
Elvira, B.
, 1997. Taxonomy of the genus
Chondrostoma
(Osteichthyes, Cyprinidae): an updated review. Folia Zool. 46 (Suppl. 1):1-14. (Ref.
27763
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
01 January 2008
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00383 - 0.01808), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.4 ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (42 of 100).
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mrius-barile
- 20 July 2016
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