Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine)
Paper deals with data on interrelation of mollusks of the family Unionidae and Dreissena polymorpha (Pallas, 1771) and other epibiotic invertebrates in the cooling pond of the Khmelnitsky nuclear power plant (Ukraine). The quantitative indices of unionids and Dreissena, inhabiting shells of the livi...
Gespeichert in:
Datum: | 2012 |
---|---|
Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | English |
Veröffentlicht: |
Інститут зоології ім. І.І. Шмальгаузена НАН України
2012
|
Schriftenreihe: | Вестник зоологии |
Schlagworte: | |
Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/109577 |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Zitieren: | Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) / A.A. Sylayeva, A.A. Protasov, I.A. Morozovskaya // Вестник зоологии. — 2012. — Т. 46, № 6. — С. 533–538. — Бібліогр.: 14 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraineid |
irk-123456789-109577 |
---|---|
record_format |
dspace |
spelling |
irk-123456789-1095772016-12-03T03:01:51Z Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) Sylayeva, A.A. Protasov, A.A. Morozovskaya, I.A. Экология Paper deals with data on interrelation of mollusks of the family Unionidae and Dreissena polymorpha (Pallas, 1771) and other epibiotic invertebrates in the cooling pond of the Khmelnitsky nuclear power plant (Ukraine). The quantitative indices of unionids and Dreissena, inhabiting shells of the living Unionidae, size structure of populations, and morphometric indexes of the living Unionidae were analyzed. No significant negative impact of settlements of the zebra mussels on Unionidae was noted. Приведены результаты исследований взаимоотношений между двустворчатыми моллюсками семейсва Unionidae, Dreissena polymorpha (Pallas, 1771) и другими эпибионтными беспозвоночными в водоёме-охладителе Хмельницкой АЭС (Украина). Проанализированы количественные показатели перловиц и дрейссены, обитающей на живых перловицах, размерная структура популяций моллюсков, морфометрические характеристики живых перловиц. Явно выраженного негативного влияния поселений дрейссены на перловиц не выявлено. 2012 Article Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) / A.A. Sylayeva, A.A. Protasov, I.A. Morozovskaya // Вестник зоологии. — 2012. — Т. 46, № 6. — С. 533–538. — Бібліогр.: 14 назв. — англ. 0084-5604 DOI 10.2478/v10058-012-0046-5 http://dspace.nbuv.gov.ua/handle/123456789/109577 (574.58:594.125):574.63 en Вестник зоологии Інститут зоології ім. І.І. Шмальгаузена НАН України |
institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
collection |
DSpace DC |
language |
English |
topic |
Экология Экология |
spellingShingle |
Экология Экология Sylayeva, A.A. Protasov, A.A. Morozovskaya, I.A. Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) Вестник зоологии |
description |
Paper deals with data on interrelation of mollusks of the family Unionidae and Dreissena polymorpha (Pallas, 1771) and other epibiotic invertebrates in the cooling pond of the Khmelnitsky nuclear power plant (Ukraine). The quantitative indices of unionids and Dreissena, inhabiting shells of the living Unionidae, size structure of populations, and morphometric indexes of the living Unionidae were analyzed. No significant negative impact of settlements of the zebra mussels on Unionidae was noted. |
format |
Article |
author |
Sylayeva, A.A. Protasov, A.A. Morozovskaya, I.A. |
author_facet |
Sylayeva, A.A. Protasov, A.A. Morozovskaya, I.A. |
author_sort |
Sylayeva, A.A. |
title |
Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) |
title_short |
Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) |
title_full |
Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) |
title_fullStr |
Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) |
title_full_unstemmed |
Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) |
title_sort |
interrelation between unionids and their epibionts in the cooling pond of the khmelnitsky nuclear power plant (ukraine) |
publisher |
Інститут зоології ім. І.І. Шмальгаузена НАН України |
publishDate |
2012 |
topic_facet |
Экология |
url |
http://dspace.nbuv.gov.ua/handle/123456789/109577 |
citation_txt |
Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power Plant (Ukraine) / A.A. Sylayeva, A.A. Protasov, I.A. Morozovskaya // Вестник зоологии. — 2012. — Т. 46, № 6. — С. 533–538. — Бібліогр.: 14 назв. — англ. |
series |
Вестник зоологии |
work_keys_str_mv |
AT sylayevaaa interrelationbetweenunionidsandtheirepibiontsinthecoolingpondofthekhmelnitskynuclearpowerplantukraine AT protasovaa interrelationbetweenunionidsandtheirepibiontsinthecoolingpondofthekhmelnitskynuclearpowerplantukraine AT morozovskayaia interrelationbetweenunionidsandtheirepibiontsinthecoolingpondofthekhmelnitskynuclearpowerplantukraine |
first_indexed |
2025-07-07T23:20:52Z |
last_indexed |
2025-07-07T23:20:52Z |
_version_ |
1837032226418589696 |
fulltext |
UDC (574.58:594.125):574.63
INTERRELATION BETWEEN UNIONIDS
AND THEIR EPIBIONTS IN THE COOLING POND OF THE
KHMELNITSKY NUCLEAR POWER PLANT (UKRAINE)
A. A. Sylayeva, A. A. Protasov, I. A. Morozovskaya
Institute of Hydrobiology of NAS, 12 Geroyiv Stalingrada prospect,
Kyiv, 04210 Ukraine
E-mail: asil@voliacable.com, protasov@bigmir.net
Received 2 September 2011
Accepted 21 November 2012
Interrelation Between Unionids and Their Epibionts in the Cooling Pond of the Khmelnitsky Nuclear Power
Plant (Ukraine). Sylayeva A. A., Protasov A. A., Morozovskaya I. A. – Paper deals with data on inter-
relation of mollusks of the family Unionidae and Dreissena polymorpha (Pallas, 1771) and other epibi-
otic invertebrates in the cooling pond of the Khmelnitsky nuclear power plant (Ukraine). The quanti-
tative indices of unionids and Dreissena, inhabiting shells of the living Unionidae, size structure of pop-
ulations, and morphometric indexes of the living Unionidae were analyzed. No significant negative impact
of settlements of the zebra mussels on Unionidae was noted.
Ke y wo r d s: Unionidae, zebra mussel, Dreissena polymorpha, epibionts, cooling pond, nuclear power
plant.
Âçàèìîîòíîøåíèÿ ìåæäó ïåðëîâèöàìè è èõ ýïèáèîíòàìè â âîäî¸ìå-îõëàäèòåëå Õìåëüíèöêîé àòîì-
íîé ñòàíöèè (Óêðàèíà). Ñèëàåâà À. À., Ïðîòàñîâ À. À., Ìîðîçîâñêàÿ È. À. – Ïðèâåäåíû ðåçóëü-
òàòû èññëåäîâàíèé âçàèìîîòíîøåíèé ìåæäó äâóñòâîð÷àòûìè ìîëëþñêàìè ñåìåéñâà Unionidae,
Dreissena polymorpha (Pallas, 1771) è äðóãèìè ýïèáèîíòíûìè áåñïîçâîíî÷íûìè â âîäî¸ìå-îõëà-
äèòåëå Õìåëüíèöêîé ÀÝÑ (Óêðàèíà). Ïðîàíàëèçèðîâàíû êîëè÷åñòâåííûå ïîêàçàòåëè ïåðëîâèö
è äðåéññåíû, îáèòàþùåé íà æèâûõ ïåðëîâèöàõ, ðàçìåðíàÿ ñòðóêòóðà ïîïóëÿöèé ìîëëþñêîâ, ìîð-
ôîìåòðè÷åñêèå õàðàêòåðèñòèêè æèâûõ ïåðëîâèö. ßâíî âûðàæåííîãî íåãàòèâíîãî âëèÿíèÿ ïîñå-
ëåíèé äðåéññåíû íà ïåðëîâèö íå âûÿâëåíî.
Êëþ÷åâûå ñ ëîâ à: Unionidae, äðåéññåíà, Dreissena polymorpha, ýïèáèîíòû, âîäîåì-îõëàäèòåëü,
àòîìíàÿ ñòàíöèÿ.
Introduction
Study of invasion (penetration, see note 1) processes has many environmentally important aspects. These
processes along with biogeographical and biocenotic ones are of special significance. The basic issue is: how
native and invasive/penetrative organisms cooperate and cohabit? How the ecological niches of new species
are formed, and how the biocenosis functions at changes of its structure?
This article is devoted to the study of interrelations between bivalves of the family Unionidae (native
organisms) and insider1 Zebra mussel (Dreissena polymorpha (Pallas, 1771)) in the cooling pond of Khmelnitsky
nuclear power plant (north-western region of Ukraine).
Material and methods
The joint settlements of Unionidae and their epibionts, first of all D. polymorpha, in the cooling pond of
Khmelnitsky nuclear power plant (KhNPP) were studied over summer seasons 1998—2009.
The cooling pond of the KhNPP was created in 1986. It is the dam pond on the small river Gniloy Rog
(the Prypiat’ River basin). The dam length is about 8 km, the pond volume is about 120 million m3, maxi-
Vestnik zoologii, 46(6): e-49—e-54, 2012
DOI 10.2478/v10058-012-0046-5
1 We use a new term of “insider” instead of widespread term “invader” (according to suggestion of Prof.
V. V. Anistratenko), because penetration of D. polymorpha to the cooling pond occurred within limits of its
natural areal.
Ýêîëîãèÿ
Unauthenticated
Download Date | 11/30/16 10:48 PM
mum depths – about 19 m. It is shallow water body: 40 % of total area is of depth 3 m and less. Shallow areas
are localized mainly in western, eastern and southern parts of the cooling pond. One power unit of the NPP
functions since 1987, and since 2004 two power units are in operation.
Western, eastern and partially southern sections are subjected to the influence of the heated waters of
NPP, depending on prevailing winds. Over period of studies maximal temperature (32°Ñ) was marked in the
southern section in 2006. The summer period of 2007 was characterised by considerable (up to 1 m) decrease
of the water level. Water temperature in the pond is usually 3—5°C higher than in natural reservoirs of this region.
Samples were collected from the depths 0.5—6.0 m using the SCUBA equipment with the frame
0.5 X 0.5 m. Additionally, separate specimens of Unionidae with Dreissena’s settlement were taken in individ-
ual polyethylene bags. The structure of invertebrates’ community in Dreissena’s druses on Unionid shells was
determined.
Shells of living Unionidae with Dreissena settlements on the surface were analyzed. The length, height,
thickness and weight of Unionidae and Dreissena were measured. For this purpose on each specimens of Unionidae
number, weight and size structure (size groups with the step 5 mm) of Dreissena was determined. For
Unionidae shells the form coefficient (Kf) was calculated as: Kf = ( (L + h + d)/3)3/Lhd, where L – length,
h – height, d – thickness (Protasov, 2004).
In total 210 specimens of living Unionidae were examined, including 143 with settlements of Dreissena.
Results
Actually, one species of Dreissenidae – Dreissena polymorpha occurs in the cool-
ing pond of the KhNPP. One of substrata for this species are living mollusks and shells
of Unionidae (fig. 1, 2). The cooling pond is located within the areal of D. polymorpha,
however it penetrated into this reservoir only in 2002—2003.
According to data of 1998—2001 (Sylayeva, Protasov, 2002), in the cooling pond
5 species of bivalve mollusks have been noted: Unio tumidus Philipsson, 1788; U. picto-
rum (Linne, 1758); Anodonta cygnea (Linne, 1758); A. piscinalis Nilsson, 1823; A. stag-
nalis (Gmelin, 1791). They occurred in the eastern and southern sections on sand and
muddy sand, and also in the intake channel of NPP, where they lived locally on a sandy
bottom near the concrete slope of the channel. According to these data length of
Anodonta amounted to 57—102 mm, length of Unio – 32—82 mm.
Maximal numbers and biomass of Unionidae was noted in the intake channel in 1998:
214 ind./m2 and 5412.8 g/m2; in 1999 they decreased accordingly to 52 ind./m2 and 1205.9
g/m2, and in 2001 – to 14 ind./m2 and 54.6 g/m2 at a depth of 4.5 m, but 51 ind./m2
and 1292.7 g/m2 – at a depth 6.0 m. On the shallow sites of the southern section num-
bers and biomass of Unionidae amounted to 20 ind./m2 and 641.8 g/m2, U. tumidus dom-
inated.
It was established, that since 2005, after start of the NPP second power unit func-
tioning and penetration of Dreisena, number of Unionidae species decreased: only
U. tumidus and U. pictorum were noted. Only single specimens of the latter were noted.
Live Anodonta was absent; only the shells were found in all investigated sites.
e-50 A. A. Sylayeva, A. A. Protasov, I. A. Morozovskaya
Fig. 1. Druse of Dreissena polymorpha on Unio, southern section of the cooling pond, depth 0.8 m.
Ðèñ. 1. Äðóçà äðåéññåíû íà ïåðëîâèöå, þæíûé ðàéîí âîäî¸ìà-îõëàäèòåëÿ ÕÀÝÑ, ãëóáèíà 0,8 ì.
Fig. 2. Mollusk Unio with druse of Dreissena polymorpha on bottom of the eastern section of the cooling pond,
depth 1 m (underwater photo).
Ðèñ. 2. Ìîëëþñê Unio ñ äðóçîé äðåéññåíû íà äíå â âîñòî÷íîì ðàéîíå âîäîåìà-îõëàäèòåëÿ ÕÀÝÑ, ãëó-
áèíà 1 ì (ïîäâîäíîå ôîòî).
Unauthenticated
Download Date | 11/30/16 10:48 PM
Populations of Unionidae (1999, 2001, 2005—2009) were presented by rather large
molluscs. The average size increased from 55.2 mm in 2001 to 80.0 mm in 2009. Young
individuals with size less than 20 mm were not noted.
Over the years 2005—2009 number of Unio in the cooling pond decreased from 15 ± 3
to 5 ± 2 ind./m2. The biomass varied from 271.5 ± 104.0 to 490.6 ± 146.0 g/m2, on aver-
age 359.9 ± 49.1 g/m2. Maximal abundance was detected in the southern section.
Number of Unio decreased, and biomass remained at same level, because average indi-
vidual mass increased from 16.8 ± 1.6 g in 2005 to 52.6 ± 2.1 g/ind. in 2009. Maximal
size of Unio in 2009 amounted to 101.1 mm.
The Dreissena settlements (druses) on living Unio on the average occupied about 30 %
of total surface of the shell. In 2005—2007 its settlements were noted at the depth of 4
m, and in 2008—2009 – only at the depth of 2 m.
In 2005 average biomass of Dreissena was 29.1 ± 4.7 g per one specimen of Unio
(g Dr/spec. U) (within the limits 0.9—91.54). In 58 % of cases the mass of Dreissena
exceeded mass of the occupied Unio on average 2.3 times. In other cases (mainly in the
southern section) mass of Dreissena amounted to 51.4 % of Unio’s mass. In 2005 num-
ber of Dreissena specimens on average amounted to 149 spec. Dr/spec. U (within the range
5—1026).
In 2005 maximal biomass of Dreissena settlements was noted on Unio of the length
about 60 mm, however maximal individual length was about 80 mm.
In 2006 biomass of Dreissena on Unio decreased to 16.1 ± 2.1 g Dr/spec. U (lim-
its 3.1—43.0). On 86 % of Unio specimens the biomass of Dreissena was about 40 % of
Unio biomass. On the remaining specimens the biomass of Dreissena 1.4 times exceed-
ed the biomass of Unio. In 2006 average number of Dreissena was 49 spec. Dr/spec. U (lim-
its 5—112). In 2007 average biomass of Dreissena increased to 33.0 ± 6.8 g Dr/spec. U
(limits 4.3—144.9). Maximum was noted on Unio specimens of biomass 74.7 g (south-
ern section). In 2007 average number of Dreissena per Unio specimen was 57 spec. Dr/spec.
U (limits 4—185).
In 2008 number of Dreissena increased to the level of 2005 – on average 153 spec.
Dr/spec. U (limits 7—579). Average biomass decreased to 25.2 g Dr/spec. U (limits
0.8—117.7) and continued to decrease until 2009 – to on average 20.9 g Dr/spec. U (lim-
its 0.4—81.1). In 2009 number of Dreissena per Unio specimen was on average 28 spec.
Dr/spec. U (limits 2—185).
The size structure is an important characteristic of the mollusk’s population state.
In epibiotic druses of Dreissena seven size groups were registered – from 1—5 mm to
31—35 mm. In 2005 on the living Unio the size group of 6—10 mm dominated. In 2006
in the western section the group of 11—15 and 16—20 mm dominated, juvenile specimens
(1—5 mm) substantially prevailed in southern section.
Maximal size of Dreissena specimens on Unio over the years increased from on the
average 26.1 mm in 2005 to 31.1 mm in 2009.
Possible negative impacts of the Dreissena settlements on Unionidae as mollusk-car-
rier can be assessed, in particular, by the change of size – biomass characteristics. Character
of dependence length – biomass of Unionidae over period of studies is close to those
given in the literature and obtained in natural conditions (Alimov, 1981).
However, the analysis of morphometric characteristics of the live Unionidae shells
showed that after Dreissena’s penetration factor Kf increased, mainly due to growth of rela-
tion L/h. Thus, after Dreissena’s penetration the length of individuals increased, at the
same time the height of a shell decreased. However, this also can be a consequence of
allometric natural growth of large mollusks.
The Dreissena settlements on living Unio, as well as on other substrata, represent spa-
tially complex microbiotop occupied by various invertebrates. In druses on the live Unio
in southern section 11 species of invertebrates were noted (5 species of Naididae, 3 of
Chironomidae, Trichoptera and Ceratopogonidae, and a Gastropoda Ferrissia sp.).
Limnochironomus nervosus Staeg. and Ecnomus tenellus (Rambur) in particular represent-
e-51Interrelation Between Unionids and Their Epibionts in the Cooling Pond...
Unauthenticated
Download Date | 11/30/16 10:48 PM
ed almost 100 % frequency of occurrence. Number of invertebrates’ species in each druse
of Dreissena on a specimen of Unio was low: 2—5.
In the years 2008 and 2009 the taxonomic richness in druses on Unio increased: Hydra,
Ostracoda, Micronecta sp. were found. Abundance of co-living invertebrates considerably
increased – to hundreds ind./spec. U. Chironomidae, Oligochaeta and E. tenellus quan-
titatively dominated.
Discussion
The phenomenon of settlement of the attached organisms on solid covers and shells
of others hydrobionts (or epizoon), creation of epibiotic communities is widespread in
different reservoirs. One of examples are settlements of the attached bivalve mollusks
(Dreissenidae) on shells of the mobile Unionidae. These settlements can be considered
as consortio representing system of interrelations between organisms, where the role belongs
to the dominating organism-edificator or “ecosystem-engineer”.
Quantitative characteristics of Dreissena populations in such communities consid-
erably vary in different reservoirs (Kharchenko, Zorina-Sacharova, 2000; Hunter, Bailey,
1992; Schloesser et al., 1998; Strayer, 1999). According to our data obtained in the Kyiv
reservoir in the water bodies inhabited by both species, D. polymorpha and D. bugensis
Andr., the leading position in settlements on Unionidae belongs to D. polymorpha
(Sylayeva et al., 2005).
Our researches showed that after invasion of D. polymorpha and start of second power
unit, Unionidae have disappeared only in the intake channel of cooling pond of KhNPP.
This is connected to change of hydrodynamic conditions. Dreissena attachment to the
shells of the living Unionidae can lead to death of the latter because of limiting of their
mobility and difficulty of obstruction for filtration. However, in the conditions of the cool-
ing pond mollusks are affected by complex of others biotic and abiotic factors: high tem-
perature, silting of bottom and considerable vegetation of the filamentous algae. The obvi-
ous negative impact which could be expressed as mass Unionidae mortality in the cool-
ing pond of KhNPP was not noted, unlike to the Great Lakes (Hunter, Bailey, 1992;
Schloesser et al., 1998).
In 2005 (the first, aggressive period of invasion) prevalence of Dreissena biomass over
Unionidae biomass was registered, but in 2006—2009 the Dreissena biomass decreased and
did not exceed the biomass of Unio, this can testify to some stabilisation of settling pro-
cesses and joint settlement of two species of the mollusks-filterers (fig. 3). At the same
time average mass of the Unio specimens over this period has increased (fig. 4).
On the basis of the studies of Dreissena settlements on Unionidae in the Kiev reser-
voir the conclusion has been made, that complex Unionidae + Dreissena is stable if the
biomass of epibiontic organisms does not exceed the biomass of Unionidae (Kharchenko,
Zorina-Sacharova, 2000). According to studies of Dreissena settlements in Masurian lakes
(Poland), even when Dreissena biomass several times exceeded the biomass of Unionidae,
negative impact on growth of the latter was not noted (Lewandowski, 1976). However,
according to studies of the joint settlements of Dreissena and Unionidae in the lotic con-
ditions, Unio with settlements were smaller, and the biomass of Dreissena 15.1—20.0 g
was critical, higher values caused death of Unionidae (Piechocki, 2008). Besides, the por-
tion of the empty Unionidae shells (35 % of all taken) was higher as compared with reser-
voirs where Dreissena was absent. In our studies the portion of the empty shells was some-
what larger (on average 38 % in the years 2005—2007 and 48 % in 2008—2009).
It is possible to accept the reducing of Unionidae shell size as a criterion for esti-
mation of the Dreissena settlements’ impact. According to our data it is impossible to make
a conclusion on decrease of the size under the Dreissena’s impact, as average length and
mass of Unionidae increased during the studies (fig. 2). It is worth to note that in 2005
the size structure of Unio was still close to that noted in 2001.
In the laboratory experiments veliger of Dreissena settled on live Unionidae shells
more intensively, than on other solid substrata (Lewandowski, 1976; Guseva, Mertl’, 2008).
e-52 A. A. Sylayeva, A. A. Protasov, I. A. Morozovskaya
Unauthenticated
Download Date | 11/30/16 10:48 PM
Creating communities of consortive type, Dreissena provides settlement of consid-
erable quantity of invertebrates from different taxonomic groups in the druses. Dreissena’s
settlement on Unionidae is a consortio with two edificators (Kharchenko, Zorina-
Sacharova, 2000). In Dreissena communities existing for a long time, invertebrates were
absent in the adjacent sections (Karataev et al., 1983). However, according to our pre-
vious data (Sylayeva et al., 2006), specific species inhabiting settlement of Dreissena in
the cooling pond of KhNPP on the ground, on Unionidae and on other substrata were
characterized by similar structure of the species—consorts.
In the considered cooling pond, we did not find the Amphipoda prevailing in
Dreissena’s settlements, for example, in the reservoirs of the Dnieper cascade (Sylayeva
et al., 2005; Kharchenko, Zorina-Sacharova, 2000) and in the cooling pond of the
Chernobyl NPP (Protasov, Sylayeva, 2006). Population of druses on Unionidae in the
cooling pond of KhNPP over the years 2005—2007 was extremely poor. Accurate depen-
dence between number (and biomass) of Dreissena and number of invertebrates in drus-
es was not noted – from 20 to 40 specimens number of invertebrates increased, then up
to 100 specimens it decreased. In Lukomlsky Lake somewhat different pattern was char-
e-53Interrelation Between Unionids and Their Epibionts in the Cooling Pond...
Fig. 3. Ratio of Dreissena and Unio biomass over the period of investigation.
Ðèñ. 3. Ñîîòíîøåíèå ìåæäó ìàññîé Dreissena è ìàññîé Unio ïî ãîäàì èññëåäîâàíèé.
Fig. 4. Absolute and average values of Unio specimens mass in the cooling pond of the Khmelnytskiy NPP over
period of investigation.
Ðèñ. 4. Àáñîëþòíûå è ñðåäíèå âåëè÷èíû ìàññû Unio âîäîåìà-îõëàäèòåëÿ Õìåëüíèöêîé ÀÝÑ ïî ãîäàì
èññëåäîâàíèé.
0,00
0,01
0,10
1,00
10,00
2004 2005 2006 2007 2008 2009 2010
Year of investigation
m
as
s
D
re
is
se
n
a
/
m
as
s
U
n
io
0,0
20,0
40,0
60,0
80,0
100,0
120,0
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Year of investigation
M
as
s
o
f
U
n
io
s
p
ec
im
en
t,
g
Absolute value
Mean value
Unauthenticated
Download Date | 11/30/16 10:48 PM
acteristic: number of invertebrates in druses increased to 80 specimens of Dreissena, and
then it was stabilized (Karataev et al., 1983).
Conclusion
After D. polymorpha penetration and start of the second power unit of the Khmelnitsky
nuclear power plan functioning, in the cooling pond some reducing of Unionidae pop-
ulation was noted. Mollusks of the genus Anodonta disappeared, abundance of two Unio
species somewhat decreased. The Unionidae shells serve as one of substrata where
Dreissena settlements are formed. Over the first years after Dreissena invasion its biomass
on live Unionidae was 1.5 times higher as compared with biomass of the carrier, later
this ratio decreased to 0.5—0.7.
Analysis of the morphometrical characteristics of the shells and ratio biomass/length
of live Unionidae after Dreissena invasion gives no possibilities to conclude on negative
influence of epibiont Dreissena on Unionidae in the considered reservoir.
Alimov A. F. Functional ecology of freshwater bivalves. – Leningrad : Science, 1981. – 248 p. – Russian :
Àëèìîâ À. Ô. Ôóíêöèîíàëüíàÿ ýêîëîãèÿ ïðåñíîâîäíûõ äâóñòâîð÷àòûõ ìîëëþñêîâ.
Guseva D. Î., Mertl’ Ì. Settling of juvenil Dreissena and macroinvertebrates on the shells of different species
of bivalves (Proc. Ist Intern. Conf., Oct. 28 – Nov. 1, Borok. – Yaroslavl, 2008. – P. 128—131.
Hunter D., Bailey J. Dreissena polymorpha (Zebra Mussel): colonization of soft substrata and some effects on
Unionid bivalves // The Nautilus. – 1992. – 106, N 2. – Ð. 60—67.
Karataev À. U., Tishchikov G. M., Karataeva I. V. Population of Dreissena polymorpha Pallas druses as spe-
cific communities of the bottom animals // Biology of Inland Water : Inf. Bulletin. – 1983. – N 61. –
P. 18—21. – Russian : Êàðàòàåâ À. Þ., Òèùèêîâ Ã. Ì., Êàðàòàåâà È. Â. Íàñåëåíèå äðóç Dreissena
polymorpha Pallas êàê ñïåöèôè÷åñêîå ñîîáùåñòâî äîííûõ æèâîòíûõ.
Kharchenko T. A., Zorina-Sacharova E. E. Consortium of bivalves of littoral of flat storage pool as structural-
ly-functional aggregate of hydrobionts // Hydrobiol. J. – 2000. – 36, N 5. – P. 9—18. – Russian :
Õàð÷åíêî Ò. À., Çîðèíà-Ñàõàðîâà Å. Å. Êîíñîðöèÿ äâóñòâîð÷àòûõ ìîëëþñêîâ ëèòîðàëè ðàâíèííî-
ãî âîäîõðàíèëèùà êàê ñòðóêòóðíî-ôóíêöèîíàëüíàÿ ñîâîêóïíîñòü ãèäðîáèîíòîâ // Ãèäðîáèîë.
æóðí. – 2000. – 36, N 5. – Ñ. 9—17.
Lewandowski K. Unionidae as a substratum for Dreissena polymorpha Pall. // Pol. Arch. Hydrobiol. – 1976. –
23, N 3. – P. 409—420.
Piechocki A. Negative impact of Dreissena polymorpha to Unio tumidus in river condition :Abstr. XXIV Seminar.
malakol. Gdansk, 2008) – Gdansk, 2008. – P. 49. – Polish :.
Protasov À. À. Some features of phenotipic structure of population of Dreissena bugensis Andr. in the cooler
pond of Chernobyl NPP. – Zhytomyr : Volyn, 2004. – P. 158—160. – Russian : Ïðîòàñîâ À. À.
Íåêîòîðûå îñîáåííîñòè ôåíîòèïè÷åñêîé ñòðóêòóðû ïîïóëÿöèè Dreissena bugensis Andr. â âîäî-
åìå-îõëàäèòåëå ×åðíîáûëüñêîé ÀÝÑ.
Protasov A. A., Sylayeva A. A. Communities of Invertebrates of the Cooling Pond of the Chernobyl NPS. Report
3. Communities of Zoobenthos, Their Composition and Structure // Hydrobiol. J. – 2006. – 42, N 3. –
P. 3—23.
Schloesser D. W., Kovalak W. P. Longton G. D. et al. Impact of Zebra and Quagga Mussels (Dreissena spp.)
on Freshwater Unionids (Bivalvia: Unionidae) in the Detroit River of the Great Lakes // Am. Midl.
Nat. – 1998. – 140. – P. 299—313.
Strayer D. L. Effects of alien species on freshwater mollusks in North America // J. N. Am. Benthol. Soc. –
1999. – 18, N 1. – P. 74—98.
Sylayeva À. À., Protasov À. À. Zoobentos of cooling pond of Khmelnitskiy nuclear power plant and estimation
of water quality on the bottom invertebrates // Hydrobiol. J. – 2002. – 38, N 6. – P. 46—59. – Russian
: Ñèëàåâà À. À., Ïðîòàñîâ À. À. Çîîáåíòîñ âîäîåìà-îõëàäèòåëÿ Õìåëüíèöêîé ÀÝÑ è îöåíêà êà÷å-
ñòâà âîäû ïî äîííûì áåñïîçâîíî÷íûì // Ãèäðîáèîë. æóðí. – 2002. – 38, N 6. – Ñ. 46—59.
Sylayeva À. À., Protasov À. À., Morozovskaya I. À. Bottom communities of invertebrates of littoral of the Kiev
reservoir. – Ternopil : Publ. Ternopil univer. Ser. Biology. Sp. is. Hydroecology. – 2005. – N 3 (26). –
P. 397—399. – Russian : Ñèëàåâà À. À., Ïðîòàñîâ À. À. , Ìîðîçîâñêàÿ È. À. Äîííûå ãðóïïèðîâêè
áåñïîçâîíî÷íûõ ëèòîðàëè Êèåâñêîãî âîäîõðàíèëèùà.
Sylayeva À. À., Protasov À. À., Morozovskaya I. À., Babaryga S. P. Composition and abundance of bivalves and
size structure of their population in the cooling pond of Khmelnytskiy NPP. – Zhytomyr : Publ. Zhitomyr
univ. – Is. 2. – 2006. – P. 262—265. – Russian : Ñèëàåâà À. À., Ïðîòàñîâ À. À., Ìîðîçîâñêàÿ È. À.,
Áàáàðèãà Ñ. Ï. Îñîáåííîñòè ñîîáùåñòâ äðåéññåíû â äîííûõ ãðóïïèðîâêàõ âîäîåìà-îõëàäèòåëÿ
Õìåëüíèöêîé ÀÝÑ.
e-54 A. A. Sylayeva, A. A. Protasov, I. A. Morozovskaya
Unauthenticated
Download Date | 11/30/16 10:48 PM
|