ISSN 1063-0740, Russian Journal of Marine Biology, 2009, Vol. 35, No. 7, pp. 611–613. © Pleiades Publishing, Ltd., 2009.
Original Russian Text © V.Ye. Kharin, V.P. Cheblukov, 2009, published in Izvestiya TINRO.
In May 2008, ﬁshermen of the Oktyabrskii District
in the Primorskii Krai sent several photographs of a ﬁsh
that had been caught in the Kulikovskoye Reservoir, in
the neighborhood of Strugovka Village, and occasion-
ally in the Strugovka River, for more than four years, to
the Ichthyology Laboratory at the Zhirmunskii Institute
of Marine Biology of the Far East Division of the Rus-
sian Academy of Sciences (FEB RAS), with a request
to deﬁne the species. At nearly the same time, the
TINRO Center Marine Museum Collection acquired a
specimen of an immature ﬁsh identiﬁed as the Ameri-
(ﬁgure). After a visual comparison of the images of the
ﬁsh from the Strugovka River and the collection speci-
men, the conclusion was made that both belonged to the
same species. The American paddleﬁsh is widely
spread in its natural habitat, viz., the Mississippi River
Basin and northward up to the Great Lakes [9, 11–13],
and is now being introduced in many countries of the
world [7, 8, 10, 14, 15]. In Russia, it is reared as an
aquaculture object at ﬁsh farms of the European part of
the country (in the cities of Dimitrov and Krasnodar
and Lake Velikoye in Kostroma Oblast) [2–4]. An indi-
vidual weighing 12 kg was caught in the Krasnodar
Reservoir . However, naturalization of the species
seems to have taken place in Russia . In the Russian
Far East it is described for the ﬁrst time. As best as we
could determine, the paddleﬁsh was introduced into the
Kulikovskoye Reservoir in 2004 by Vazgen, Ltd. from
the Goriachy klyuch ﬁsh farm in Krasnodarskii Krai,
where this ﬁsh has been successfully reared for many
MATERIAL AND METHODS
TINRO R 229. One individual, AC 452 mm, from
Kulikovskoye Reservoir, Strugovka Village, Oktyabr-
skii District, Primorskii Krai, Russia. Collected by
Ye. I. Rachek in September 2007.
Body elongated, tapering to the tail. Rostrum thin,
ﬂexible and paddle-shaped, 2.5 times as long as the AC.
No myodomus. Two short (3.5 mm) barbels on the ven-
tral side of the rostrum, in front of the mouth. Mouth
lower, non-protractile. Two nostrils on each side of the
head above and in front of eyes.
and tightly joined with
. Jaws with small teeth.
Branchiostegal membrane has only one ray on each
side. Rakers on the ﬁrst gill arch long, thin and numer-
ous—254 + 1 + 302 = 555. No
. There is a narrow, elongated spiracle over
greatly reduced. No separate
. Body naked. No scutes typical for
sturgeons. The dorsal ﬁn begins far ahead of the anal-
ﬁn vertical line. Ribs rudimentary, non-ossiﬁed.
55. Caudal ﬁn heterocercal.
Measurements in percentage of AC: the greatest
body height, 13.5; head length with the rostrum (
67.7; head length without rostrum, 30.5; head height
), 10.4; rostrum length to nostril, 36.9; rostrum
length to eye, 38.2; the greatest rostrum width, 9.9; the
least rostrum width, 6.8; snout length without rostrum
), 1.3; horizontal eye diameter (
), 1.3; postorbital
The First Finding of the American Paddlefish
(Polyodontidae) in Waters of the Russian Far East
V. Ye. Kharin
and V. P. Cheblukov
Zhirmunsky Institute of Marine Biology, Far East Division of the Russian Academy of Sciences,
Vladivostok, 690041 Russia
Paciﬁc Research Fisheries Center (TINRO-Center), Vladivostok, 690950 Russia
Received January 16, 2009
A description is given of the ﬁrst recorded specimen of the American Paddleﬁsh,
(Polyodontidae), in water bodies of the Russian Far East.
(Polyodontidae), Russia, Primorskii Krai, Oktyabrskii District, Kulikovskoye
Reservoir, Strugovka River.