Volume 04 Issue 10-2024
28
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
04
ISSUE
10
Pages:
28-32
OCLC
–
1290679216
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
The article provides information on the economic importance of bivalve molluscs and measures to preserve their
biodiversity.
KEYWORDS
Anthropogenic, biodiversity, severity. abiotic, shell mollusk, density, river, temperature.
INTRODUCTION
In the world, as representatives of macrozoobenthos
susceptible to abiotic and anthropogenic influences,
special attention is paid to identification of species
composition,
assessment
of
distribution
and
involvement in production of molluscs. In this regard,
among other things, mollusk species in continental
water ecosystems were inventoried, an international
database of their registration was created, and
economically effective species were introduced into
production networks. It should be said that the viability
of bivalve mollusk species, which have historically
formed in large water bodies in arid regions, is
Research Article
THE INFLUENCE OF AQUATIC ENVIRONMENTAL FACTORS OF THE
SANZZORDARYA COAST ON THE VARIABILITY OF THE WEIGHT AND
SHELLS OF BIPHALLED MOLLUSCS
Submission Date:
October 20, 2024,
Accepted Date:
October 25, 2024,
Published Date:
October 30, 2024
Crossref doi:
https://doi.org/10.37547/ajahi/Volume04Issue10-06
A.A. Azamkulov
Assistant, Jizzakh Polytechnic Institute, Jizzakh, Uzbekistan
Yusupov Shake
Associate professor, University of South Kazakhstan named after M.Avezov, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajahi
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 04 Issue 10-2024
29
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
04
ISSUE
10
Pages:
28-32
OCLC
–
1290679216
Publisher:
Oscar Publishing Services
Servi
particularly dependent on the change in the seasonal
hydrological regime and physico-chemical properties
of river waters. In recent years, the reduction of the
size of the river saturation source, the creation of
artificial water ecosystems, and the expansion of
agriculture provide a change in the species
composition of the malacfauna distributed in seasonal
or non-stagnant water bodies, the loss of most species,
and the expansion of the range of newly adapted
invasive representatives that are not typical for the
area. It should be noted that the accidental
introduction of new bivalve mollusk species into water
bodies under the influence of the human factor
determines the transformation or crisis of historically
formed malacafauna communities. Accordingly, it is of
great scientific and practical importance to assess the
current state of bivalve mollusk species in aquatic
ecosystems, identify populations of communities
prone to crisis, and develop recommendations for the
introduction of economically important species into
practice. Existing inland waters in the territory of
Uzbekistan are important for irrigating land, soil
formation, and plant development. They provide water
to industrial enterprises of the national economy,
irrigate crops and in household life
is important. Protection of the nature and natural
resources of Uzbekistan - rational use of fossil
resources necessary for humans, keeping water and air
clean, protecting soils from erosion, preserving and
restoring flora and fauna in their natural state, and
preserving beautiful places such as waterfalls, springs,
etc. includes. [7]
Ditch waters also have an impact on the pollution of
Uzbekistan's water bodies. Because the water from
the ditch brings all kinds of dissolved salts, solutions of
various poisonous chemicals sprayed on cotton and
other crops to the rivers, as a result it pollutes the
water. In order to prevent the Sangzor River from
being polluted by sewage, it is necessary to stop
dumping it into rivers, ditches or reservoirs as much as
possible. Hydrabionts are a good indicator of water
quality in Sangzor river water ecosystems. In 1920, I.
Kolkvits, R. Maresson classified water according to
pollution. According to the information of the
committee of ecology and environmental protection of
the Republic of Uzbekistan, there are clean,
moderately polluted and dirty waters on the Sangzor
river bank. [8]
The middle stream was analyzed in the region of
Ghallaorol (Sangzor village) and the downstream
region after the city of Jizzakh (Khairabad village). The
content of O2 in the Gallaorol area (Sangzor village) of
the middle stream is 4.9±1.1 mg/l, oil and oil products
are 0.04±0.02 mg/l, and the level of mineralization is
884±62 mg/l. the weight of the 5-year-old Sinanodonta
gibba type is 380 grams, the length of the shell is
146±3.1, the height of the shell is 68±2.1, the convexity
of the shell is 74±2.6; The weight of Corbiculina
Volume 04 Issue 10-2024
30
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
04
ISSUE
10
Pages:
28-32
OCLC
–
1290679216
Publisher:
Oscar Publishing Services
Servi
ferghanensis is 3.1 grams, the length of the shell is
21.5±2.3, the height of the shell is 18±2.4, and the
convexity of the shell is 12±1.1. Since this area is located
in the middle part of the river, hydrochemical
indicators of water did not exceed REM. The content
of O2 in the water near the village of Khairabad located
in the lower part of the river is 5.7±1.0 mg/l. and the
abundance of this amount in the middle stream may be
related to the abundance of algae in the downstream,
besides, in the downstream, oil and oil products are
0.06±0.01 mg/l, mineralization level is 1014±42 mg/l,
and 5-year-old Sinanodonta gibba species weight 312
grams, shell length 131±3.1, shell height 57±2.1, shell
convexity 65±2.2, Corbiculina ferghanensis species
weight 2.4 grams, shell length 17.5±1.6, shell height
14.9±1.3, shell swelling is 9.4±1.0. In this area, the
hydrochemical indicators of the waters showed that
they were higher than the permissible level.
Effect on weight and shell variability of bivalve
molluscs (n=10, m2/piece)
Koʻrsatkichlar
Oʻrta oqim Gʻallaorol
(Sangzor q.) hududi
populyatsiyasi.
O
2
4,9±1,6 m/g (REM K-4
Yo6), nyeft va neft
maxsulotlari 0,04±0,02 mg/l
(0,05), minerallanishi
884±62 m/g (1000)
Quyi oqimi Jizzax
shaxridan oʻtgach
(Xayrobod q.) hududi
populyatsiyasi.
O
2
5,7±0,9 m/g (REM K-4
Yo6), nyeft va neft
maxsulotlari 0,06±0,01
mg/l (0,05), minerallanishi
1014±43 m/g (1000)
Sinanodonta gibba
Mollyuskalar ogʻirligi, g
380±9,4
312±8,9
Chigʻanoq uzuligi, mm
146±3,1
131±3,1
Chigʻanoq balandligi,
mm
68±2,1
54±2,1
Chigʻanoq qabariqligi,
mm
74±2,6
65±2,2
Corbiculina ferghanensis
Mollyuskalar ogʻirligi, g
3,1±0,6
2,4±0,3
Chigʻanoq uzuligi, mm
21,5±2,3
17,5±1,6
Chigʻanoq balandligi,
mm
18±2,4
14,9±1,3
Chigʻanoq qabariqligi,
mm
12±1,1
9,4±1,0
Volume 04 Issue 10-2024
31
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
04
ISSUE
10
Pages:
28-32
OCLC
–
1290679216
Publisher:
Oscar Publishing Services
Servi
The hydrochemical indicators of the water are oil and
oil products, the level of mineralization is not higher
than REM, and the water temperature, flow speed, and
clarity are favorable for bivalve molluscs. Near the
Gallaorol region (Sangzor village), the weight, shell
length, height and bubble growth of molluscs are high.
was determined. After the city of Jizzakh downstream
(Khairabad district), oil and oil products in the water,
the level of mineralization is higher than REM, pollution
of water environment factors, the weight of bivalve
molluscs, the length, height, and bubble growth of the
shell have a certain limiting effect on the growth of the
shells, the size of the shells. was observed to be small.
The species found in the coastal water ecosystems of
the Sangzor River were grouped into catarophilic -
living in clean water, oligosaprobic - in moderately
polluted waters, and mesasprobic - in polluted waters.
We propose to implement protective measures in
order to preserve the populations of the species
distributed in the springs, springs, rivers and reservoirs
of the coastal water ecosystems of the Sangzor River.
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Volume 04 Issue 10-2024
32
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
04
ISSUE
10
Pages:
28-32
OCLC
–
1290679216
Publisher:
Oscar Publishing Services
Servi
6.
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