ISSN 10630740, Russian Journal of Marine Biology, 2010, Vol. 36, No. 5, pp. 373–382. © Pleiades Publishing, Ltd., 2010.
Published in Russian in Biologiya Morya.
The spring plankton population of Peter the Great
Bay is not as rich in the larvae of decapods as the sum
mer population, but this is the period when the zoeae
and megalopae of all commercially important species
of crabs and craboids can be observed in the plankton.
Our samples were dominated by larvae of the red king
and snow crab
, and, more rarely, the zoeae of the horse
and helmet crab
(see [11, 12]). In the waters of the Far
Eastern Marine Biosphere State Natural Reserve
(FEBSNR) (the eastern area) we also found larvae of
the blue king crab
. During our
studies we did not find zoeae of the spiny king crab
, but taking into consideration
the fact that the geographic range of this species
extends up to southern Primorye and Hokkaido , its
larvae could also be encountered in the surveyed area
and should, therefore, also be discussed here. The
same is true also for the red queen crab
, which inhabits greater depths.
Besides the abovelisted commercially important
species, we encountered the larvae of the stone crab
, granular claw crab
), spider crab
Hyas coarctatus ursinus
), and larvae of hermit
in the spring plankton of Peter the Great Bay. In FEB
SNR we also revealed the larvae of the mudcrab
, which we did not register earlier in the
Amursky and Ussuriisky bays.
The larval morphology of most of the listed species
has been described by Japanese and American scien
The article was translated by the authors.
tists (Table 1). Identification keys are available for the
coastal waters of Japan elaborated by Konishi et al.
[27, 31–33], but the list of species inhabiting our
waters is significantly different from that in Japan.
Brief identification keys for decapod larvae of the shelf
of western Kamchatka were provided by Makarov ;
this is one of the few publications of such a kind avail
able in the Russian literature. Moreover, until recently
information was not available on the occurrence times
of the larvae of commercially important crabs and
craboids in Peter the Great Bay of the Sea of Japan.
The most detailed data, which were published recently
by the authors of this paper, are concerned only with
the red king crab
The target of this study was to provide a key allow
ing the identification of the larvae of the abovelisted
commercially important crabs and craboids and to
distinguish them from other decapod species of the
spring meroplankton and to determine the timing of
their appearance and occurrence in plankton of Peter
the Great Bay. As megalopae occur in plankton signif
icantly more rarely than zoeae, our first priority will be
the identification of the zoea stage.
MATERIALS AND METHODS
Standard planktonic samples collected at 176 sta
tions in Peter the Great Bay by V.A. Nuzhdin, a scien
tist of the Pacific Fisheries Research Center in the
spring of 2004–2006 were used as materials for this
study. The plankton was sampled with a IKS80 net
(0.8 m in diameter, with mouth area of 0.5 m
of no. 14 mesh), across the upper 200m thick water
layer (at stations with shallower depths the sample
were collected throughout the water column, from the
BIOLOGY OF ONTOGENESIS
A Key for the Identification of Larvae of Brachyuran and Anomuran
Crabs in Spring Plankton of Peter the Great Bay, Sea of Japan
O. M. Korn
, E. S. Kornienko
, and N. V. Scherbakova
Institute of Marine Biology, Far East Branch, Russian Academy of Sciences, Vladivostok, 690041 Russia
Pacific Fisheries Research Center, Vladivostok, 690950 Russia
email: firstname.lastname@example.org, email@example.com
Received November 19, 2009
—A key for the identification of zoeae of brachyurans (Oregoniidae, Cheiragonidae, Varunidae) and
anomurans (Anomura: Lithodidae), including commercial species, in spring plankton of Peter the Great Bay
(Sea of Japan) was elaborated. Data on the hatching time and the duration and conditions of occurrence of
brachyuran and anomuran larvae in this region are provided.
zoeae, larvae, brachyurans, anomurans, Sea of Japan.