ISSN 1063-0740, Russian Journal of Marine Biology, 2009, Vol. 35, No. 2, pp. 117–126. © Pleiades Publishing, Ltd., 2009.
Original Russian Text © I.V. Epur, 2009, published in Biologiya Morya.
The scientists of the Russian Academy of Sciences
have worked out the National Strategy of Biodiversity
Conservation in Russia. The south of the Russian Far
East, in particular, Peter the Great Bay, is listed in the
program among unique natural complexes and priority
regions that need particular attention . In this bay,
the reference stations for long-term ecological monitor-
ing are located in the waters of the Far-Eastern State
Marine Biosphere Reserve FEB RAS (FESMBR), Vos-
tok Bay, and Amurskii Bay .
The base area of ecological monitoring in the
Marine Reserve was chosen in Sivuch’ya Bay (Fig. 1).
This bay was also designated as a testing area to study
the effects of the Tumen River runoff on the coastal
ecosystems of Russia (within the framework of the Fed-
eral Goal-Oriented Program named Integration). To
analyze the changes in ichthyofauna within the bay, it is
necessary to have a comprehensive idea of its species
composition and structure. In this connection, the main
target of our project was to evaluate the biological
diversity in Sivuch’ya Bay.
MATERIAL AND METHODS
This paper was based on ichthyological collections
sampled directly in Sivuch’ya Bay and, partially, in the
adjacent open sea area. The sampling of the faunistic
materials in the surveyed area was primarily performed
from March to November 1996–2003 and in the sum-
mer period of 1994, 1995, and 2004. We also took into
consideration the information obtained from the guards
of Southern Outpost, who continued observations at
our request, also from December through February.
In order to obtain the most correct information about
the composition of ichthyofauna, different sampling
devices were used as follows: stand nets, minnow seine,
shrimp traps, ichthyoplankton nets, handlines, and bottom
setline. Faunistic samplings were also performed at light
stations using the light equipment of scientiﬁc vessels.
observations on ﬁshes from aboard of a ribbon boat were
commonly used. The ﬁshes were also recorded during the
monitoring of storm-stranded matter.
The total examined materials comprised 831 sam-
ples containing 16 118 ﬁsh specimens (Table 1). The
greatest number of samples was obtained from stand
net catches (Table 1). For control sampling we used gill
nets, 1.5–1.8 m high, 30 m long, with 17 to 55 mm
cells. We also sampled medusas and algae ﬂoating at
the water surface (usually
), where adults
and young of many ﬁsh species hide, using a ﬁne hand
For species identiﬁcation of ﬁshes we used identiﬁ-
cation keys [6–9], ﬁsh catalogues [29, 33, 37], as well
Ecological and Zoogeographic Characterization
of the Ichthyofauna of Sivuch’ya Bay (Peter the Great Bay,
Sea of Japan)
I. V. Epur
Institute of Marine Biology, Far Eastern Division, Russian Academy of Sciences, Vladivostok, 690041 Russia
Accepted September 13, 2007
—An inventory of the ichthyofauna of Sivuch’ya Bay (Far Eastern State Marine Biosphere Reserve) was
made for the ﬁrst time. Based on the results of our research (during all seasons of 1994–2004), the list of Sivuchya
Bay ﬁshes includes 108 species belonging to 15 orders, 45 families, and 84 genera. The greatest number of taxa was
found for the orders Perciformes (17 families, 33 genera, and 40 species) and Scorpaeniformes (8, 18, and 28, respec-
tively). The following families dominate in terms of the number of species: Stichaeidae, 15 species; Cottidae, 11;
Pleuronectidae, 9; Gobiidae, 5; Hexagrammidae, 5; Clupeidae, 4; and Tetraodontidae, 4. These seven families include
53 species (49.1%). The data,conﬁrmed by the results of regression analysis, show that the bay ichthyofauna is well
studied. Zoogeographical analysis indicates that the bulk of ichthyofauna is constituted by ﬁshes of Asian origin (low
boreal, low boreal–subtropical and widely distributed boreal), 80 species (74.1%). Bottom and near-bottom ﬁshes are
dominating elements of the Sivuch’ya Bay ichthyofauna, with 83 species (76.9%); pelagic ﬁshes 25 species make up
ichthyofauna, low boreal, low boreal–subtropical, widely distributed boreal, Asian species, bottom and
near-bottom ﬁshes, pelagic ﬁshes, age groups.