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Preparing and Evaluating the LULC Map of the Kosonsoy River Basin Using GIS Technologies

Tursunov Yunusali, Mirzahmedov Ismoiljon

Departament of Geography and environmental protection, Namangan State University,

Namangan, 160107, Uzbekistan

E-mail: ismoil_landsat@mail.ru

Abstract. This paper addresses the development and analysis of Land Use/Land Cover (LULC) maps of the Kosonsoy River basin using Geographic Information System (GIS) technologies. In the course of the study, LULC maps for 2017 and 2024 were produced in the ArcMap environment based on Sentinel-2 satellite imagery, including image preprocessing, classification, and accuracy assessment stages. Using the watershed delineation method, the hydrological boundaries of the Kosonsoy River basin were defined, enabling an integrated assessment of the natural and anthropogenic characteristics of the area in conjunction with the LULC maps. The results highlight the effectiveness of GIS-based approaches for land cover mapping, spatial analysis, and monitoring of land use changes, as well as their practical significance for territorial planning, environmental monitoring, and sustainable land resource management.

[Tursunov Y. at. el. Preparing and Evaluating the LULC Map of the Kosonsoy River Basin Using GIS Technologies. Nat Sci 2026,24(6):1-6]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 01. doi:10.7537/marsnsj240626.01

 Keywords: Kosonsoy River basin; land use and land cover; LULC maps; geographic information systems; remote sensing; ArcMap software; Sentinel-2 satellite; watershed delineation.

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Comparative study of “Tuwo” made from maize, sorghum and rice

Sunmonu¹, B.A., Tajudeen¹, Z.O., Adeyanju², E.B., Oloso³, S.E., Salmon⁴, R.Y., Akinsola³, A.O., & Saliu-Olaoluwa³, A.O.

¹Department of Food Technology, Federal Polytechnic Offa, Kwara state, Nigeria

²Department of Home Economics, Federal University of Education, Ondo, Ondo State, Nigeria

³Department of Home Economics, Federal College of Education (Special), Oyo, Oyo State, Nigeria

⁴Department of Home Economics, Federal College of Education, Abeokuta, Ogun State, Nigeria.

Corresponding author: akinsola.akinjide1333@fcesoyo.edu.ng

Abstract: Comparative study of tuwo made from maize, sorghum and rice were investigated. The samples were coded as sample TML (Maize tuwo), TSL (sorghum tuwo) and TRS (rice tuwo) and analyzed for nutritional, chemical and sensory attributes such as taste, texture and overall acceptability. Proximate composition shows that moisture content ranged from 11.34 - 15.67 %; protein 9.53 - 11.63 %; fat 2.34 - 2.59 %; fibre 1.53 - 1.65 %; ash 1.27 - 1.42 % and carbohydrate content from 69.43 - 71.57 %. Selected mineral content evaluated shows that calcium content ranged from 7.39 - 8.17 mg/100g; magnesium 4.05 - 4.66 mg/100g; potassium 6.14 - 6.79 mg/100g; manganese 4.57 - 5.01 mg/100; zinc 3.85 - 4.39 mg/100g and iron content from 2.64 - 2.94 mg/100g. Functional properties shows that bulk density ranged from 0.74-0.79 mg/100g; water asorption capacity 2.47 - 2.67 %; oil absorption capacity 2.67 - 2.95 %; emulsion capacity 4.88 - 4.99 %; emulsion stability 39.44 - 38.37 %; foam capacity 33.51 - 36.43 %; foaming stability 14.75 - 15.17 %; swelling capacity 2.84 - 2.89 %; swelling index 1.85 - 1.95 %; dispersibility 73.00 - 76.00 %; gelatinization temperature 64.00 - 70.00 ^oC while its starch content from 69.38 - 76.12 %. Pasting properties shows that peak viscosity ranged from 333.10 - 381.21 RVU; trough 138.01 - 187.21 RVU; breakdown 110.61 - 187.21 RVU; final viscosity 218.21 - 311.21 RVU; setback 143.61 - 172.51 RVU; peak time 5.25 - 5.30 min and pasting temperature from 83.66 - 84.51 ^oC. Sensory attributes mean scores shows that all the samples were acceptable by the panelist however; sample TSL (sorghum sample) was rated highest. The result obtained shows the nutritional and chemical properties of tuwo flour and its sensory acceptability can best be produced from sorghum because of it high nutritional content and overall acceptability by the panelist.

[Sunmonu, B.A., Tajudeen, Z.O., Adeyanju, E.B., Oloso, S.E., Salmon, R.Y., Akinsola, A.O., & Saliu-Olaoluwa, A.O. Comparative study of “Tuwo” made from maize, sorghum and rice. Nat Sci 2026,24(6):7-17]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 02. doi:10.7537/marsnsj240626.02

Keywords: Gelatinization temperature; pasting property; minerals content; sensory attributes; starch content; tuwo.

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Effects of Culture System Optimization and Feeding Regimens on Growth, Survival, and Production Efficiency of Callinectes pallidus (Rochebrune, 1883) in Indoor Aquaculture Systems

Morfow Nkeze Paul^1, and Dau Henry Japheth²

¹ Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.

² Department of Forestry and Wildlife Technology, Federal University of Technology, Owerri, Nigeria

Email: mopaze2002@yahoo.com.

Abstract: This study investigated sustainable indoor culture strategies for the Gladiator Swimming Crab (Callinectes pallidus, Rochebrune, 1883) using simple system designs and locally sourced juveniles. The research evaluated the effects of two feeding regimens (trash fish and commercial feed) on growth, survival, and culture efficiency across three indoor systems (a recirculating aquaculture system with UV filtration (System A), a recirculating system without UV (System B), and a flow-through system (System C)). All crabs had an initial mean weight of 1.63 g and were cultured for 2.5 months. Significant differences (p < 0.05) were observed among feeding regimens and culture systems. Crabs fed trash fish exhibited superior growth and weight gain across all systems, with System C achieving the highest final mean weight (16.45 ± 0.58 g), specific growth rate (35.50 ± 1.0%), and maximum weight gain (18.14 g). Similar trends were observed in carapace dimensions, with System C attaining the largest length (31.45 ± 1.34 mm) and width (52.40 ± 0.93 mm). Feed conversion efficiency was highest in System C (FCR = 1.4) and System A (FCR = 1.45), compared to System B (FCR = 3.1). Survival rates followed the same pattern, with System C at 50%. The results demonstrate that combining optimized culture systems with appropriate feeding regimens, particularly trash fish in a flow-through system, significantly enhances growth performance, feed utilization, and survival of C. pallidus. These findings provide valuable knowledge for improving the productivity and sustainability of tropical crab aquaculture and show the importance of system design and dietary management in indoor aquaculture operations.

[Morfow, N.P. and Japheth, H.D. Effects of Culture System Optimization and Feeding Regimens on Growth, Survival, and Production Efficiency of Callinectes pallidus (Rochebrune, 1883) in Indoor Aquaculture Systems. Nat Sci 2026,24(6):18-33]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 03. doi:10.7537/marsnsj240626.03

Keywords: Feed conversion ratio (FCR); Flow-through system; Production systems; Recirculating aquaculture system (RAS); Sustainable aquaculture; Ultraviolet filter

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Assessing The Changes Of The Glaciers In The Karadarya Basin During The Period Of Climate Change

Akaboev Ismatulla

Departament of Geography and environmental protection, Namangan State University, Namangan, 160107, Uzbekistan

E-mail: ismatulaakaboev@gmail.com

Abstract. This article analyzes the changes in the existing glaciers in the Karadarya River basin, which begins in the eastern part of the Fergana Valley, from 1970 to 2018 using geographical comparison, historical analysis, and cartographic methods. In particular, the relationship between changes in glaciers on the southwestern slopes of the Fergana Range and the northern slopes of the eastern part of the Aloy Range in the river basin and climate change is assessed. The distribution of existing glaciers in the Karadarya River basin by river tributaries, how many of them have an area larger or smaller than 0.1 km², in which tributaries of the river the area of ​​glaciers has decreased or expanded during the studied period, how many glaciers have melted and how many new glaciers have appeared, at what altitude and in what exposure the glaciers undergoing change are located, were analyzed. At the same time, relevant conclusions were drawn based on the above studies.

[Akaboev I. Assessing The Changes Of The Glaciers In The Karadarya Basin During The Period Of Climate Change. Nat Sci 2026,24(6):34-40]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 04. doi:10.7537/marsnsj240626.04

Keywords: Climate change; climate change problem; Fergana Range; Alai Range; mountain slopes; mountain glaciers; climate factors; temperature increase; Karadarya River basin; glacier area; large and small glaciers

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Preparing and Evaluating the LULC Map of the Kosonsoy River Basin Using GIS Technologies

Tursunov Yunusali, Mirzahmedov Ismoiljon

Departament of Geography and environmental protection, Namangan State University,

Namangan, 160107, Uzbekistan

E-mail: ismoil_landsat@mail.ru

Abstract. This paper addresses the development and analysis of Land Use/Land Cover (LULC) maps of the Kosonsoy River basin using Geographic Information System (GIS) technologies. In the course of the study, LULC maps for 2017 and 2024 were produced in the ArcMap environment based on Sentinel-2 satellite imagery, including image preprocessing, classification, and accuracy assessment stages. Using the watershed delineation method, the hydrological boundaries of the Kosonsoy River basin were defined, enabling an integrated assessment of the natural and anthropogenic characteristics of the area in conjunction with the LULC maps. The results highlight the effectiveness of GIS-based approaches for land cover mapping, spatial analysis, and monitoring of land use changes, as well as their practical significance for territorial planning, environmental monitoring, and sustainable land resource management.

[Tursunov Y. at. el. Preparing and Evaluating the LULC Map of the Kosonsoy River Basin Using GIS Technologies. Nat Sci 2026,24(6):41-47]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 05. doi:10.7537/marsnsj240626.05

 Keywords: Kosonsoy River basin; land use and land cover; LULC maps; geographic information systems; remote sensing; ArcMap software; Sentinel-2 satellite; watershed delineation

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