1063-0740/05/3105- © 2005 Pleiades Publishing, Inc.
Russian Journal of Marine Biology, Vol. 31, No. 5, 2005, pp. 273–278.
Original Russian Text Copyright © 2005 by Biologiya Morya, Panchenko.
The antlered sculpin
1787) is a widely boreal species distributed in the Sea
of Japan; the Okhotsk, Bering, and Chuckchee seas; in
the Paciﬁc waters of Hokkaido, the Kuril and Aleutian
islands; Kamchatka Peninsula; and also in the Gulf of
Alaska [7, 8]. In Peter the Great Bay, this is one of the
most common species of the family Cottidae .
Despite this fact, available information on the biology
of the antlered sculpin, including its distribution, is still
rather scanty. For Peter the Great Bay, the available
information is conﬁned to data presented by Vdovin
and Zuenko , Sokolovskii and Sokolovskaya ,
In this paper, we compare the bathymetric distribu-
tion of the antlered sculpin in Peter the Great Bay for
different months, discuss its spatial distribution in the
summer months, and analyze the sexual composition of
the catches of this species.
MATERIALS AND METHODS
The materials were collected in January–December
1984–2003 during trawl surveys organized by the
Paciﬁc Center of Scientiﬁc Fisheries. The trawling was
performed during daytime, at depths of 5 to 700 m; with
a speed of 1.8–3.1 knots, using bottom trawls with a
headrope of 20–69 m long, horizontal net opening of
13–38 m, and cod end made of 30 mm net. Altogether
2572 trawlings were performed.
The trawl catches were recalculated for ﬁsh density
using the following equation:
is ﬁsh density, specimens/km
is the catch,
is the area of trawling, km
The occurrence frequency was determined as a per-
centage ratio of the number of effective trawlings to the
total number of trawlings in a certain seasonal and
Studying the seasonal dynamics of ﬁsh distribution,
we followed the classiﬁcation of the seasons of the year
proposed for Peter the Great Bay by Zuenko . In
accordance with the thermal structure of waters, four
main seasons are distinguished there, winter (January–
February), spring (March–April), summer (June–Sep-
tember), and autumn (November–December). May and
October are considered as transitional months between
the spring and summer and between the summer and
autumn seasons, respectively. June, the beginning of
the summer season, is somewhat different in the hydro-
logical characteristics from other summer months;
therefore, the distribution of antlered sculpin in June is
discussed here separately from other months of the
hydrological summer (July–September).
Altogether 13 560 specimens of antlered sculpin
have been measured with an absolute length from 5 to
38 cm; in 6335 specimens, we have determined the sex.
RESULTS AND DISCUSSION
In July–September, during surveys in depths of 5–
400 m, the antlered sculpin occurred in a depth range of
12 to 250 m deep (see table). The greatest concentra-
Seasonal Distribution of Antlered Sculpin,
(Cottidae) in Peter the Great Bay, Sea of Japan
V. V. Panchenko
Paciﬁc Center of Scientiﬁc Fisheries, Vladivostok 690600, Russia
Received October 5, 2004
—The antlered sculpin
in Peter the Great Bay is found to inhabit from shallow
waters to depths deeper than 600 m. The range of depth where this species occurs is the narrowest, from 12 to
250 m deep, in summer. The greatest depths of inhabitation are characteristic, in all seasons, only of adult ﬁsh
of this species. In the cold period of the year, the young probably avoid the upper part of the shelf where the
temperatures have cooled down to negative numbers. Spawning in the antlered sculpin begins in the second half
of November. Females dominate the population of this species inhabiting Peter the Great Bay. Males reach
38 cm long and more; females can be up to 31 cm long. The greatest density of antlered sculpin in the summer
period on the preferred substrates is observed in the western part of the bay, primarily on sandy ground.
: antlered sculpin, distribution, depth, catches, sizes, concentration.