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Eudontomyzon vladykovi, Danubian brook lamprey
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Danubian brook lamprey
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Eudontomyzon vladykovi
Picture by
Freyhof, J.
Classification / Names
Common names
|
Synonyms
| Catalog of Fishes(
genus
,
species
) |
ITIS
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Cloffa
Petromyzonti (lampreys) >
Petromyzontiformes
(Lampreys) >
Petromyzontidae
(Northern lampreys) > Lampetrinae
Etymology:
Eudontomyzon:
eu-
, a Greek intensive (good, well or very);
odontos
(Gr.) tooth, referring to numerous radially arranged teeth of
E. danfordi
;
myzon
(Gr.), to suck (borrowed from
Petromyzon
), referring to their suctorial behavior. (
See ETYFish
)
;
vladykovi:
Patronym not identified but clearly in honor of lamprey biologist Vadim D. Vladykov (1898-1986). (
See ETYFish
)
.
Issue
This species is questionably a junior synonym of
Eudontomyzon mariae
(Berg, 1931) in Renaud (2011; Re. 89241:41). Please send references, or more studies are needed. Considered a subspecies of
Eudontomyzon mariae
by authors (Ref.
12283
).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Temperate; 50°N - 43°N, 13°E - 27°E (Ref.
59043
)
Europe: Upper and middle Danube drainage: Sava, Drava systems and west Drava tributaries; lower Danube drainage. Locally present in Timis and Olt systems. Not recorded from Tisza and Cerna systems.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 21.2 cm TL male/unsexed; (Ref.
59043
); common length : 18.0 cm TL male/unsexed; (Ref.
556
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 0. With 61 - 67 trunk myomeres; trunk not mottled in live ammocoetes. The caudal fin is hyaline, of a spade-like shape.
Adults inhabit clear, well-oxygenated brooks in piedmont and mountain zones. They are non-parasitic and remain in freshwater. Ammocoetes live in detritus-rich sands or clay sediments. Ammocoete stage lasts 3.5-4.5 years. Ammocoetes feed on detritus and micro-organisms. They metamorphose in July - September and spawn in March - May. Males dig shallow nests in habitats with moderate currents (Ref.
59043
). Males and females die after spawning.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Males dig shallow nests in habitats with moderate current. Spawning occurs when temperature reach 7-10°C at higher elevations (Ref.
59043
).
Kottelat, M. and J. Freyhof
, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref.
59043
)
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
Fisheries: of no interest
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Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00126 (0.00056 - 0.00284), b=2.99 (2.80 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.6 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Low, minimum population doubling time 4.5 - 14 years (Semelparous species, assuming tm (= tmax) > 4).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (11 of 100).
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