scholarly journals Phytodiversity in Relation to Some Environmental Factors Of Some Wetland Habitats

2021 ◽  
Vol 50 (4) ◽  
pp. 1087-1094
Author(s):  
Md Almujaddade Alfasane ◽  
Safia Parveen ◽  
Naheed Mansoor ◽  
Mahmoud Moustafa ◽  
Ahmed Al Emam
Keyword(s):  
Environmental Factors ◽  
Water Temperature ◽  
Air Temperature ◽  
Research Work ◽  
Positive Correlation ◽  
Monthly Average ◽  
One Year ◽  
Near Future ◽  
Wetland Habitats ◽  
Temperature Water

The present research work was carried out on phytodiversity in relation to some environmental factors of three ponds namely, Pond-1, Pond-2 and Pond-3 of Zanjira upazila at Shariatpur district, Bangladesh where a total of 13 parameters were measured for one year. Monthly average different parameters of three ponds varied : air temperature from 23.5-36.50˚  C, water temperature 21-30.50 ˚  C,pH 7.10-8.50, TDS 55-227 mg/l, EC 103-463 μS/cm, DO 2.90-19.94 mg/l, alkalinity 0.73-5.40 meq/l, SRP 7.11-229.84 μg/l, SRS0.84-13.34 mg/l, NO3-N0.02-0.96 mg/l, chla1. 18-31.97 μg/l, phaeopigment 0.26-5.46 μg/l and phytoplankton density 6.50-119.50×106 ind/l. The total number of 122 species of phytoplankton were recorded in the studied ponds. Phytoplankton density showed positive correlation with air temperature, water temperature, pH, TDS, EC, alkalinity and SRP for Pond-1. Phytoplankton density showed positive correlation with pH, TDS, EC, DO and alkalinity for Pond-2. On the other hand phytoplankton density of Pond-3 showed positive correlation with air temperature, water temperature, TDS, EC, alkalinity, SRP, SRS, NO3-N and chlorophyll-a. During the period of present investigation some aquatic plants were found to grow in those shallow margins of the studied three ponds. Results indicated that Pond-1 is in a position undergoing eutrophic status, Pond-2 and Pond-3 are in the oligotrophic status. If the anthropogenic disturbances are continued in these ponds, it is likely that in near future these ponds would turn to eutrophic. Bangladesh J. Bot. 50(4): 1087-1094, 2021 (December)

scholarly journals Relationship between the growth of euryale ferox salisb. And some limnological parameters

1970 ◽  
Vol 19 (1) ◽  
pp. 41-46
Author(s):  
Md Almujaddade Alfasane ◽  
Moniruzzaman Khondker ◽  
ZN Tahmida Begum
Keyword(s):  
Water Temperature ◽  
Leaf Area ◽  
Air Temperature ◽  
Day Length ◽  
Ex Situ ◽  
Petiole Length ◽  
Positive Correlation ◽  
Euryale Ferox ◽  
Temperature Water ◽  
Limnological Parameters

Euryale ferox was grown in meso-scale culture by using mature fresh fruits. Seeds kept dry for a few days were found completely non-viable. A two year ex situ study on the growth and the associated limnological parameters of E. ferox showed some distinct relationship. Among these petiole length of E. ferox positively correlated with photosynthetic active radiation (PAR), day length, rainfall, humidity, air temperature, water temperature, pH, total dissolved solids (TDS), conductivity, nitrate-nitrogen (NO3-N) and soluble reactive phosphorus (SRP). Among these parameters positive correlation between petiole length and rainfall was found to be significant at 1% level. Leaf area of E. ferox showed positive correlation with PAR, day length, rainfall, humidity, air temperature, water temperature, pH, TDS, conductivity, NO3-N, SRP and planktonic phaeopigment concentrations. Among these parameters positive correlation between leaf area and day length was found to be significant at 5% level. However, both leaf area and petiole length of E. ferox showed negative correlation with alkalinity, DO, soluble reactive silicate (SRS) and chlorophyll a. Key words: Euryale ferox; Growth; Limnological parameters DOI: http://dx.doi.org/10.3329/dujbs.v19i1.8942 DUJBS 2010; 19(1): 41-46

scholarly journals Air versus water temperature of aquatic habitats in Delhi: Implications for transmission dynamics of Aedes aegypti

2018 ◽  
Vol 13 (2) ◽  
Author(s):  
Gaurav Kumar ◽  
Veena Pande ◽  
Shweta Pasi ◽  
Vijay P. Ojha ◽  
Ramesh C. Dhiman
Keyword(s):  
Water Temperature ◽  
Air Temperature ◽  
Data Loggers ◽  
Breeding Habitats ◽  
Significant Difference ◽  
The Difference ◽  
Near Future ◽  
Plastic Containers ◽  
Local Weather ◽  
Container Material

The present study was planned to characterize the microclimate experienced by Aedes larvae in different breeding habitats by determining the temperature variations in water kept in containers during different months under natural conditions. The study was conducted in three municipal zones of Delhi. In each site, four types of container material (plastic, cement, iron and ceramic) were chosen for recording the water temperature in the containers. Daily air and water temperatures (mean, maximum and minimum values) recorded by HOBO and Tidbit data loggers, respectively, were compared using analysis of variance and Tukey’s honest significant difference (HSD) tests. Mean monthly temperature of water varied from 16.9 to 33.0 °C in tin containers, 17.3 to 35.6°C in plastic containers, 14.3 to 28.5°C in ceramic pots, 23.3 to 30.4°C in cemented underground tanks (UGT) and 15.8 to 35.1°C in cemented overhead tanks (OHTs). Corresponding values for the air temperature ranged from 17.7 to 36.1°C. The difference between temperature of water in the containers and air temperature was highest for ceramic pots. Daily mean, maximum and minimum temperatures recorded by different data loggers differed significantly (P<0.05). When Tukey HSD test was applied for data analysis, the daily mean air temperature differed significantly from the water temperature in tin and ceramic pots as well as cemented OHTs. The temperature of water in the different breeding habitats investigated was lower than the air temperature. Moreover, actual air temperature as recorded by HOBO was higher than the temperature recorded by local weather stations. Considering the ongoing climate change, cemented UGT and earthen pots may be more productive breeding habitats for the Aedes mosquito in the near future, while plastic and cemented OHTs might no longer be suitable for Aedes breeding.

scholarly journals Biological and environmental factors associated with risk of schistosomiasis mansoni transmission in Porto de Galinhas, Pernambuco State, Brazil

2013 ◽  
Vol 29 (2) ◽  
pp. 357-367 ◽  
Author(s):  
Onicio Batista Leal Neto ◽  
Elainne Christine de Souza Gomes ◽  
Fernando José Moreira de Oliveira Junior ◽  
Rafael Andrade ◽  
Diego Leandro Reis ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Infection Rate ◽  
Breeding Site ◽  
Transmission Risk ◽  
Host Snail ◽  
Breeding Sites ◽  
Positive Correlation ◽  
Snail Density ◽  
One Year ◽  
Transmission Foci

Schistosomiasis has expanded to the coast of Pernambuco State, Brazil, where there are frequent reports of Biomphalaria glabrata snails and human cases of the disease. This study analyzes factors related to schistosomiasis transmission risk in Porto de Galinhas. A one-year malacological survey was conducted to identify biological, abiotic, and environmental factors related to the host snail breeding sites. Data analysis used Excel 2010, GTM Pro, and ArcGis 10. A total of 11,012 B. glabrata snails were captured in 36 breeding sites, and 11 schistosomiasis transmission foci were identified. A negative correlation was found between breeding site temperature and snail density and infection rate, and a positive correlation with pH and salinity. The rainy season showed a positive correlation with snail density and infection rate. The study emphasizes the factors involved in the maintenance of schistosomiasis breeding sites, in light of persistence of this disease in Porto de Galinhas for more than 10 years.

scholarly journals PENGARUH FAKTOR LINGKUNGAN TERHADAP KEBERADAAN GASTROPODA PADA EKOSISTEM MANGROVE DI DERMAGA LANTAMAL KELURAHAN KARANG INDAH DISTRIK MERAUKE KABUPATEN MERAUKE

2018 ◽  
pp. 33-48
Author(s):  
Rosiana Sari Mathius ◽  
Bonny Lantang ◽  
Modesta R. Maturbongs
Keyword(s):  
Environmental Factors ◽  
Data Collection ◽  
Water Temperature ◽  
Soil Ph ◽  
Field Data ◽  
Environmental Parameters ◽  
Mangrove Ecosystem ◽  
Field Data Collection ◽  
Water Ph ◽  
Temperature Water

This study aims to determine the type and effect of environmental factors on the presence of gastropods in the mangrove ecosystem. Field data collection is taken by measuring the environmental parameters directly, while gastropod data is obtained by calculating directly the amount obtained by each data collection. The results showed that in Lantamal Pier there were 8 species of gastropods : Littorina scabra, Cerithidea obtusa, Cassidula angulifera, Terebralia sulcata, Terebralia palustris, Ellobium aurisjudae, Telescopium-telescopium and Nerita lineata while environmental factors that affected to gastropods were water temperature, water pH, and soil pH.   Keywords: Gastropods; Environmental parameters.

scholarly journals Physico-chemical properties of water of Ramshagar dighi, the largest man made historical reservoir in northern Bangladesh

2018 ◽  
Vol 23 ◽  
pp. 29-37
Author(s):  
Ashaduzzaman ◽  
MJ Hossain ◽  
S Akther
Keyword(s):  
Carbon Dioxide ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Air Temperature ◽  
Water Depth ◽  
Chemical Properties ◽  
Current Status ◽  
Chemical Parameters ◽  
Monthly Average ◽  
Physico Chemical

Ramshagar dighi is a larger historical man made reservoir (Dighi, Bengali meaning) situated at Tajpur village in Dinajpur, Bangladesh. This study was aimed to estimate current status of physico-chemical variables of water of Ramshagar dighi at Dinajpur District, Bangladesh. Monthly average changes in physico-chemical parameters such as water temperature, total dissolved oxygen, air temperature, humidity, rainfall, water depth and pH of water were analyzed for the period of 11 months from May 2011 to March 2012. The average air temperature (°C) at the study area of Ramshagar dighi at Dinajpur District was determined as 24.97 ± 4.92. Our present study showed that physico-chemical properties of water in Ramshagar dighi were monthly average of water temperature (°C) as 24.68 ± 4.77, air temperature (°C) 24.97 ± 4.92, humidity as 82.075 ± 4.14, rainfall as 1534.5 mm, water depth as 9.10 m ± 1.286, pH as7.67± 0.48 and carbon dioxide as 0.85 ± 0.92 as well as dissolved oxygen as 4.65 ± 0.62 respectively during the period of May 2011 to March 2012. Therefore, present study was conducted to assess physico-chemical properties of water of Ramshagar dighi, Dinajpur, Bangladesh.J. bio-sci. 23: 29-37, 2015

scholarly journals Physicochemical and Microbiological Assessment of Selected Hand-Dug Wells for Water Quality in Ilesa Metropolis, Southwest Nigeria

2018 ◽  
Vol 10 (1) ◽  
pp. 52-59
Author(s):  
Ayodele Jacob OMOTOSO ◽  
Esther Omotola DADA ◽  
Olaoluwa OYEDEJI
Keyword(s):  
Water Quality ◽  
Water Temperature ◽  
Air Temperature ◽  
Water Samples ◽  
Heterotrophic Bacteria ◽  
Ambient Air ◽  
Total Hardness ◽  
Ambient Air Temperature ◽  
Dug Wells ◽  
Temperature Water

The present study investigated the physicochemical and microbiological assessment of selected hand-dug wells for water quality in Ilesa metropolis. The aim was to assess the groundwater quality. Twenty-five (25) hand-dug wells were randomly selected and water samples were collected four times spanning through the rainy and dry seasons. Physical parameters (ambient air temperature, water temperature, colour, turbidity and total dissolved solids), chemical (pH, conductivity, calcium, magnesium, total hardness, chlorides, sulphates, phosphates and nitrates) and microbiological parameters (total heterotrophic bacteria count, Escherichia coli and total heterotrophic fungi count) of the samples were examined. The data obtained were subjected to relevant statistical analysis. Results showed distinct seasonal variation in ambient air temperature, water temperature, pH and magnesium with highly significant different values at (p ˂ 0.01). Total hardness and sulphates concentrations had high significant different values in the dry season than in the rainy season (p ˂ 0.05) while the total heterotrophic bacteria count was significantly different at (p ˂ 0.001). The bacteria species isolated from well water samples were susceptible to pefloxacin and gentamicin. Comparing with international guide levels for drinking water, water samples were poor and unsuitable for drinking. The study concluded that the presence of multiple antibiotic resistant micro-organisms indicates a serious health hazard to the consumers of water obtained from these wells.

scholarly journals Effect of Climatic Factors and Habitat Characteristics on Anopheles Larval Density

2018 ◽  
Vol 13 (3) ◽  
pp. 345-355
Author(s):  
Noper Tulak ◽  
Handoko Handoko ◽  
Rini Hidayati ◽  
Upik Kesumawati ◽  
Lukman Hakim
Keyword(s):  
Water Temperature ◽  
Air Temperature ◽  
Brackish Water ◽  
Climatic Factors ◽  
Larval Density ◽  
Habitat Characteristics ◽  
Local Conditions ◽  
High Incidence ◽  
The Relationship ◽  
Temperature Water

Koya Barat village is one of the areas in Jayapura City which has high incidence of malaria. Malaria cases in this region are affected by local conditions, including the climate and environment of aquatic habitats.The purpose of this study was to analyze the effect of climatic factors and habitat characteristics on Anopheleslarval density in Koya Barat village. The method used is field observation with descriptive and statistical analysis approach.The results showed that there are four parameters that significantly affect on larval density, namely rainfall, air temperature, water temperature and salinity. The relationship between rainfall with the larval density in freshwater permanent habitat is negative linear. While in brackish water permanent habitat and semi permanent habitat is non-linear (2nd order polynomial). The relationship between air temperature, water temperature and salinity with the larval density in freshwater habitat are positive linear, while in brackish water habitat and semi permanent habitat are negative linear.

scholarly journals Hygienic assessment of the condition of stay in the sauna

1980 ◽  
Vol 61 (5) ◽  
pp. 63-66
Author(s):  
V. I. Sobolevskiy
Keyword(s):  
Water Temperature ◽  
Air Temperature ◽  
Point Of View ◽  
Healthy People ◽  
Stage 1 ◽  
Thermoregulatory Reactions ◽  
Cooling Procedure ◽  
Temperature Water

The dynamics of thermoregulatory reactions in response to staying in the hot room of the sauna and the cooling procedure in healthy people and patients with stage 1 hypertension is traced. From a hygienic point of view, the most rational conditions for staying in a sauna are substantiated (humidity and air temperature, water temperature for some types of contrast cooling).

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