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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. 

 

https://theusajournals.com
https://doi.org/10.37547/ajahi/Volume04Issue10-06
https://doi.org/10.37547/ajahi/Volume04Issue10-06


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.  

O2 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. 

O2 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. 

REFERENCES 

1. Andreev N.I., Andreeva S.I., Babushkin Ye.S. Fauna 

i raspredeleniye dvu stvorchatyx molluskov 

(Bivalvia) v basseyne r. Maly Yugan (Srednee 

Priobye) // Ruthenica. ‒ 2016. ‒ Vol. 26. ‒ No. 3–4. ‒ 

P. 191–201. 

2. Boymurodov H., Egamkulov A., Otakulov B., 

Bobomurodov Z.A. "Ecological groups of bivalve 

molluscs of the family Unionidae and Corbiculidae 

distributed in the Tuyatortar channel". 

Proceedings of the international scientific-practical 

conference on "Problems and solutions of the 

introduction of innovative technologies in the field 

of engineering communication" Part II. - 

Samarkand, 2020. pp. 106-108. 

3. Boymurodov H., Izzatullaev Z., Suyarov S., 

Otakulov B., Khojiev M., Bobomurodov Z., 

Turekhanov F. " Economic importance and 

protection of endemic, rare and scarce bivalves of 

the Zeravshan River.” Current problems of ecology 

and environmental management, collection of 

scientific papers of the international scientific and 

practical conference. In three volumes VOLUME 1 

Moscow, April-September 2020 - Moscow, 2020. 

48-52 bet. 

4. Boymurodov X. T., Izzatullayev Z., Egamkulov A., 

Otakulov B., Xojiyev M., Bobomurodov Z. 

Sovremennoye sostoyaniye populyatsii 

Colletopterum bactrianum Rolle 1897 v vodoyemax 

Uzbekistana Bulletin of science and practice 

Scientific Journal.Volume 6, Issue 1. T. 6. №1. 2020. 

21-27 s.  

5. Boymurodov X., Jumaboyev B., Xasanov N., 

“Populyatsii dvuxfaznыx mollyuskov semeystv 

unionidae i corbiculidae vshurkulskom 

vodoxraniliщa”.  



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. Teoreticheskiye i prakticheskiye osnovы 

nauchnogo progressa v sovremennom obщestve 

sbornik statey mejdunarodnoy nauchno-

prakticheskoy konferensii 10-oktyabrya. – Moskva,  

2020 g. 8-9 bet. Boymurodov H.T., Mardonova F., 

Normurodov D. Biodiversity and distribution of 

bivalve molluscs on the banks of the Zarafshan 

River // Sustainable development in the 

industrialized regions of Uzbekistan. A collection of 

materials of the republican scientific-practical 

conference on the topic of 2. - Navoi, 2019.74-77 Bю 

 


