Seasonal Variations in Physico-Chemical Properties and Biodiversity in Betana Pond, Eastern Nepal

Niroula, Bhabindra; Singh, K.L.B.; Thapa, Ganesh; Pal, Joydeb

doi:10.3126/on.v8i1.4330

Cited by 9 publications

(10 citation statements)

References 6 publications

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“…In the present study, the mean value of water temperature was higher in the wet season (33.13 ±0.26°C) than in the dry season (20.99 ±0.23°C), which supported the results published by Gautam and Bhattrai (2008), Thapa and Saund (2013) and Chaudhary and Devkota (2018). However, the average temperature of the reservoir seems to be higher in the present study than in the previous ones.The highest value of TDS (188 ±6.70 mg dm -3 ) was observed in dry and the lowest (147 ±3.49 mg dm -3 ) in the wet season, the results similar to those in Betana pond (Niroula et al 2010) which is also tropical lake. TDS might be increased in water due to the intensification of the anthropogenic activity (Senthikumar and Sivakumar 2008).…”

Section: Physical and Chemical Parameterssupporting

confidence: 79%

Seasonal variation of algal diversity with reference to water quality in Jagadishpur Reservoir, Nepal

Pokhrel

Ghimire

Rai

2021

Limnological Review

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The study of the importance of physicochemical parameters of water for algal growth and development in Jagdishpur Reservoir was carried out in the present research. Occurrence of algal species and values of water quality parameters also indicate the ecological nature and the present status of the reservoir. Water samples were collected from Jagdishpur Reservoir in Kapilvastu District (Nepal), in two seasons (wet and dry). The following physicochemical parameters of water were analyzed: temperature, pH, dissolved oxygen, alkalinity, concentration of nitrates and phosphates, free CO2, hardness, conductivity, total dissolved solids. The values of free CO2, hardness, phosphate, temperature, and dissolved oxygen were high in wet season while alkalinity, nitrate, conductivity and total dissolved solid were high in dry season. Altogether 81 algal species belonging to 53 genera and 6 classes were recorded. Higher number of algal species was recorded in the dry season rather than in the wet season. The highest number of species was noted among Chlorophyceae, followed by Cyanobacteria > Bacillariophyceae > Euglenophyceae > Crysophyceae and Dinophyceae. Cosmarium had the highest number of species (13) among all genera. During the wet season, Cosmarium, Calothrix and Phormidium were the genera with the highest number of species while Bulbochaete, Trachelomonas and Gomphonema were genera with the lowest number of species. During the dry season, Cymbella, Cosmarium and Rhopalodia were genera with highest number of species while Euglena, Gloeotrichia and Trachelomonas were genera with lowest number of species. Algal diversity was positively correlated with the increase of alkalinity, conductivity and TDS, while negatively correlated with free CO2, hardness, concerntration of phosphates and nitrates, DO, pH and temperature. Shannon–Weiner diversity index value was higher during the dry season than in the wet season.

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Section: Physical and Chemical Parameterssupporting

confidence: 79%

Seasonal variation of algal diversity with reference to water quality in Jagadishpur Reservoir, Nepal

Pokhrel

Ghimire

Rai

2021

Limnological Review

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“…The maximum temperature was observed during monsoon the study period while the minimum was found during winter season. Yadav et al (2013), Niroula et al (2010) observations at urban ponds are agreement with the current results. The pH value of the selected water tank in and around the Hosapete city during the study period was in between 7.24 (± 0.29) at Somalapura water tank during the summer season to 8.02 (± 0.52) during monsoon at Kampli water tank.…”

Section: Resultssupporting

confidence: 93%

Diversity and Seasonal Variations of Zooplankton in Kampli Water Tanks in and Around Hosapete City, Karnataka (India)

Mallanagoud¹

2021

IJRASET

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This study focuses on assessment of zooplankton with special reference to seasonal variation and selected physicchemical variables of Kampli water tanks in Hosapete city, Karnataka state. A large quantity of manmade activities near the water tank. During the study period, 48 species of zooplankton - 14 species of Rotifera, 12 species of Cladocera, 6 species of Ostracoda and 4 species of Copepoda were observed. Among zooplankton, Rotifera was (645 no./Org) noticed as the dominant group in the entire the study period and the maximum count was identified in the summer period while less numbers were noticed during winter season. Zooplankton community is also significantly correlated with some physico-chemical variables. The analytical results during the study period indicate that the scattering and density of zooplankton species were encouraged by prevailing physical and chemical features of the aquatic ecological condition. Keywords: Kampli, water tank, zooplankton, diversity, seasonal and domestic activity.

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“…Maximum DO in the post monsoon may be due to low temperature. Similar trends were found by previous studies (Niroula et al, 2010;Chaurasia & Tiwari 2011;Thapa Chhetry & Pal (2012)) in different wetlands. All the sites have DO values higher than 5 in all seasons suggesting good oxygen conditions for fishes.…”

Section: Discussionsupporting

confidence: 92%

“…The lower values of ammonia in post-monsoon might be due to lower temperature which lowers the microbial activity. Niroula et al (2010) also found similar results in their study. All the parameters except total hardness and total alkalinity were found within the target range of Nepal Water Quality Guidelines for Aquaculture (CBS, 2008).…”

Section: Discussionsupporting

confidence: 83%

Seasonal variation in water quality and fish diversity of Rampur Ghol, a wetland in Chitwan, Central Nepal

Oli¹,

Jha

Aryal³

et al. 2013

Nepalese J Biosci

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The present study was carried out on Rampur Ghol in three seasons viz., monsoon, post-monsoon and pre-monsoon from September, 2012 to April, 2013 to assess the seasonal variation in physico-chemical parameters of water and fish diversity. The analysis of various physico-chemical parameters showed significant seasonal fluctuation in the water quality. However, the Ghol water was found to be suitable for fish fauna. Similarly, fish diversity analysis showed that Rampur Ghol is rich in fish fauna with 22 species belonging to 13 families and five orders. The study showed significant decline of fish species as well as their abundance from past studies.

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Seasonal Variations in Physico-Chemical Properties and Biodiversity in Betana Pond, Eastern Nepal

Cited by 9 publications

References 6 publications

Seasonal variation of algal diversity with reference to water quality in Jagadishpur Reservoir, Nepal

Seasonal variation of algal diversity with reference to water quality in Jagadishpur Reservoir, Nepal

Diversity and Seasonal Variations of Zooplankton in Kampli Water Tanks in and Around Hosapete City, Karnataka (India)

Seasonal variation in water quality and fish diversity of Rampur Ghol, a wetland in Chitwan, Central Nepal

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