1063-0740/02/2803- $27.00 © 2002
Russian Journal of Marine Biology, Vol. 28, No. 3, 2002, pp. 151–162.
Original Russian Text Copyright © 2002 by Biologiya Morya, Revkov, Nikolaenko.
The ﬁnal document of the program “Assessment of
the necessity of biodiversity protection in the Crimea”
distinguished 50 priority areas for biodiversity protec-
tion on the Crimean Peninsula . The highest priority,
concurrently with other 15 areas, was assigned to the
Aiya Sarych coastal region of the South Crimea. There
are two natural protected areas: the “Aiya Cape” state
reserve and the Coastal Aqual Complex at Sarych
Cape. The necessity to enhance monitoring over the
state of marine ecosystems and their certiﬁcation is
considered to be a priority in solving the problem of
preservation of biodiversity of the coastal complexes of
The objective of the present work is an assessment
of the biodiversity and of the modern state of macrozo-
obenthos in zones of soft bottoms in the central area of
Aiya Sarych region of the Laspi Bay water area.
MATERIAL AND METHODS
The work is based on results of the benthos survey
(June 24–25, 1966) of soft bottoms in Laspi Bay area.
The benthos sampling was conducted at the depth range
of 5–52 m at 33 survey stations (Fig. 1). Assays were
taken with a Petersen bottom sampler with a grasp area
of 0.04 m
in two time series. The total surveyed area
was 2.64 m
. The assays were ﬂushed with a 1-mm
mesh sieve. The basic taxonomic description of the
zoobenthos was performed by “Opredelitel’ fauny…”
, with changes and additions made by [6, 17, 26] and
Kiseleva (personal communication). The number and
mass (ﬁxed by ethanol) of organisms were determined.
The mass of the bivalve soft body was assessed after its
opening and removal of ﬁxative from the mantle cavity.
Quantitative parameters of Bryozoa abundance were
deﬁned by colonies per 1 m
Determination of the spatial structural organization
of the benthos was assessed by cluster analysis and
ordination (MDS analysis) of the stations; PRIMER
software package was used. The similarity (difference)
of stations was estimated by the Bray-Curtis statistic
, by group averaging with a species pres-
ence/absence transformation type of data (faunistic
The index of functional abundance (IFA) from
are the num-
ber and biomass of
—species, respectively) [10, 11]
was used as the initial parameter of species signiﬁcance
for the assessment of differences between biocenosic
complexes and of intracomplex similarity conducted by
average values of the Bray-Curtis statistics . The
contribution of individual species to distinctions
between biocenosic complexes and to similarities
within the complex was analyzed with the SIMPER
program in the PRIMER package. By results of the
analysis, the dominant and characteristic species of the
respective complexes and biocenoses were determined.
The assessment of species richness and of benthos
diversity was performed over a large area (correspond-
ing to the water area including various biotopes or
Biodiversity of Zoobenthos in the Coastal Zone of the South Coast
of Crimea (Laspi Bay Area)
N. K. Revkov and T. V. Nikolaenko
Institute of Biology of the Southern Seas (IBSS) of the National Academy of Sciences of Ukraine, Sevastopol 99011
Received December 17, 2001
—Based on data of a1996 benthos survey, the structure of soft bottom zoobenthos of Laspi Bay (South
Coast of Crimea, the Black Sea) was examined. One hundred thirty-one species of macrozoobenthos, including
44 molluscan species, 43 annelids, 31 crustaceans and 13 species representing other groups, were recorded.
Two biocenoses were distinguished:
within the depths 5–52 m.
The ﬁrst biocenosis was presented by two biocenosic complexes. Their structure was characterized using Shan-
non, Simpson, and Pielou indices. The representativeness of the basic taxonomic groups of the benthos was ana-
lyzed. The conclusion of the high species abundance of benthos in Laspi Bay was made. There were recorded
changes in structure of the biocenoses, which were manifested in the development of sestonophage ﬁlterers
(ﬁrst of all, the mollusc
) with increasing organic pollution of the coastal water areas of Black
biodiversity, Black Sea, LaLaspi, zoobenthos, bottom communities.