ISSN 10630740, Russian Journal of Marine Biology, 2011, Vol. 37, No. 2, pp. 158–162. © Pleiades Publishing, Ltd., 2011.
Original Russian Text © O.P. Poltarukha, 2011, published in Biologiya Morya.
In recent decades more attention has been drawn
to studies of the chemobiotic communities of the
World Ocean, including communities of hydrothermal
vents and coldwater seeps, as well as communities of
temporal biotopes that develop on large masses of
degrading organic matter (such as sunken whale
corpses). All these communities are characterized by
having an unusual food chain where the role of produ
cents is played by chemoautotrophic bacteria and by
great biomass values, which could be several orders of
magnitude higher than those in background commu
Cirripede barnacles (Cirripedia: Thoracica) are
one of the major groups in chemobiotic communities.
To date, they have been found in different types of
such communities located in the Pacific, Indian, and
Atlantic oceans. In the Arctic Ocean no chemobiotic
communities were found until recently .
Cirripede samples collected in 2006 during the
Viking Expedition were used as the materials for this
study. The expedition was organized by the Départe
ment Etude des Ecosystèmes Profonds, Institut
Français de Recherche pour l’Exploitation de la Mer
(Plouzané, France). Cirripede barnacles were col
lected in the areas of the Nyegga and Håkon Mosby
The Nyegga area is located at the margin of the
Norwegian continental slope and the northern flank
of the Storegga Slide, between two large sedimentary
basins that are rich in oil and gas. Its coordinates are
E. In the Nyegga area
numerous coldwater (with nearbottom tempera
ture of –0.7
C) seeps were found of methane and,
presumably, also hydrogen. On the bottom, deposits
of gas hydrates and welldeveloped populations of
methane and ironoxidizing bacteria occur, which
sometimes develop carpets and stromatolitelike
Håkon Mosby Mud Volcano is located in the Bar
ents Sea at 71
volcano releases mostly methane. As in the case of the
Nyegga area, gas deposits and developed communities
of methaneoxidizing bacteria occur on the bottom. A
significant proportion of the methane that is released
by the volcano passes through the water column and
finally enters the atmosphere [9, 11].
Below are the collection data about the samples and
cirripede barnacles that were found in the surveyed areas.
The taxonomic position of the discussed species is men
tioned following Newman’s system .
The Barnacles (Cirripedia: Thoracica) Collected by the Viking
Expedition in Chemobiotic Benthic Communities of the Norwegian
and Barents Seas
O. P. Poltarukha
Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071 Russia
Received September 30, 2010
—The barnacles (Cirripedia Thoracica) collected by the Viking expedition in chemobiotic benthic
communities of Arctic Ocean–Nyegga area in Norwegian Sea and Håkon Mosby Mud Volcano area in the
Barents Sea are investigated. The species (
in Håkon Mosby Mud Volcano area and
in Nyegga area) that were found are common inhabitants of the Barents and
Norwegian sea benthic communities. The absence of obligatory barnacle fauna that was revealed in investi
gated chemobiotic benthic communities of the Arctic Ocean shows they are similar to corresponding com
munities of the Atlantic Ocean, while the specific obligatory barnacle fauna is noted for chemobiotic benthic
communities of the Pacific and Indian oceans.
: cirripede barnacles, chemobiotic benthos communities, Arctic Ocean, Norwegian Sea,