scholarly journals Effect of Magnetized Water Treatment on some Biological Aspects for Fresh Water Snail Lymnaea lagotis (Schrank,1803)

2014 ◽  
Vol 11 (2) ◽  
pp. 975-982
Author(s):  
Baghdad Science Journal
Keyword(s):  
Water Treatment ◽  
Egg Mass ◽  
Shell Size ◽  
Important Species ◽  
Magnetized Water ◽  
Untreated Water ◽  
Fresh Water Snail ◽  
Aperture Width ◽  
Biological Aspects ◽  
River Control

Exposure assays to magnetized water have so far revealed striking results. The present study was conducted to determine the effects of magnetized water treatment with in different intensities 500 , 1000 and 1500 Gauss on some biological aspects for species of freshwater Gastropod Lymnaea lagotis (Schrank, 1803) which important species in faun of aquatic habitats of Iraq. This species are considered a component of the food chain. The obtained results compared with these species which lived in the river(control). Result of these experiments showed increased significance the shell size (shell high, shell aperture length, shell aperture width and shell width) for L. lagotis with increased intensity magnetized water such as treated water with 1000 Gauss intensity compared with untreated water. Although increase significant was observed to fecundity for snails such as (egg mass dimensions, number and diameter of eggs and survival juveniles) with increased intensity of magnetized water comparative with untreated water.

scholarly journals Effect of Magnetotron on the Rates of Growth and Fecundity in Ostracoda Cyprislaevis O.F Müller,1776 under the Laboratory Conditions

2014 ◽  
Vol 8 (4) ◽  
pp. 42-45
Author(s):  
Qater Al-Nada Ali Kanaem Al-Ibady
Keyword(s):  
Water Treatment ◽  
Raw Water ◽  
Laboratory Conditions ◽  
Water Cleaning ◽  
Untreated Water ◽  
Males And Females ◽  
Biological Aspects ◽  
Rates Of Growth ◽  
Scientific Fields ◽  
Magnetic Water

The Magneototron technique considers as recent and advanced techniques in magnetic water treatment, which application in different; ecological, agricultures, industrial, medical and scientific fields. Therefore this study making to determine the effects of Magnetotron system with different intensities 0.05,0.10 and 0.15 Tesla on some biological aspects for one species of freshwater Ostracoda cyprislaevis O.F. Müller, 1776 for economical important, because both juveniles and adults of fishes feeding on it and as a tool for water cleaning, which consideration feeding on dead and decay animals and vegetables The samples of Ostracoda were collected from Al-Jaesh canal- Baghdad province for period from 1/9/2012 to 1/11/2012.The obtained results compared with this species of Ostracoda which lived in raw water (unexposed to magnetotron system).The present study demonstrated increased significance the rates of growth by increased the bivalve carapace dimensions (length and width) for both ostracodean males and females with increased intensity of magnetotron system comparative with untreated water. Although increase significant observed in fecundity in ostracodean females by increase the number and diameter of eggs with increased intensity comported with untreated females. Also this study detected to predominant females upon males in both treated and untreated water with magnetotron system. Then the magnetotron system does not effect on heterogonous in sexual formation for this species in same ecosystem.

scholarly journals Reproductive parameters of Phytoseiulus macropilis (Banks) fed with Tetranychus urticae Koch (Acari: Phytoseiidae, Tetranychidae) in laboratory

2017 ◽  
Vol 77 (1) ◽  
pp. 162-169 ◽  
Author(s):  
G. C. Souza-Pimentel ◽  
P. R. Reis ◽  
C. R. Bonatto ◽  
J. P. Alves ◽  
M. F. Siqueira
Keyword(s):  
Tetranychus Urticae ◽  
Generation Time ◽  
Economic Value ◽  
Predatory Mites ◽  
Predatory Mite ◽  
Reproductive Parameters ◽  
Important Species ◽  
Phytoseiulus Macropilis ◽  
Biological Aspects ◽  
Tetranychus Urticae Koch

Abstract Predatory mites that belong to the Phytoseiidae family are one of the main natural enemies of phytophagous mites, thus allowing for their use as a biological control. Phytoseiulus macropilis (Banks, 1904) (Acari: Phytoseiidae) is among the main species of predatory mites used for this purpose. Tetranychus urticae Koch, 1836 (Acari: Tetranychidae) is considered to be one of the most important species of mite pests and has been described as attacking over 1,100 species of plants in 140 families with economic value. The objective of the present study was to investigate, in the laboratory, the reproductive parameters of the predatory mite P. macropilis when fed T. urticae. Experiments were conducted under laboratory conditions at 25 ± 2 °C of temperature, 70 ± 10% RH and 14 hours of photophase. In addition, biological aspects were evaluated and a fertility life table was established. The results of these experiments demonstrated that the longevity of adult female was 27.5 days and adult male was 29.0 days. The population was estimated to increase approximately 27 times (Ro) in mean generation time (T), which was 17.7 days. Lastly, the mite population grew 1.2 times/day (λ) and doubled every 3.7 days (TD).

scholarly journals Effect of Magnetic Irrigation Water on Apparent and Productive Characteristics of Bean crop (Viciafaba. L)

2019 ◽  
pp. 227-243
Author(s):  
Ali A. Made ◽  
Amal A. Alazarg ◽  
Almabrok Z. Alsharef ◽  
Karima K. Alturki ◽  
Mohamed A. Alafi
Keyword(s):  
Statistical Analysis ◽  
Irrigation Water ◽  
Germination Rate ◽  
Block Design ◽  
Chemical Properties ◽  
Magnetized Water ◽  
Third Stage ◽  
Untreated Water ◽  
Bean Crop ◽  
Magnetic Water

To achieve the objectives of the study, a field experiment was conducted in the area of Judaim 5 km east of the city of Zawiya - Libya at the farm of citizen Juma Al-Marhoon 2018. The experiment was designed with the design of randomized complete block design (RCBD Factorial) of three replicates, two varieties of bean crop (Viciafaba.L) (Cyprus and Aquadulcy), and two types of irrigation water (magnetic water Mw and non-magnetic water (N Mw). Soil samples from were collected at different depths over three time periods (after one and a half months and three months after harvesting). Some chemical properties of the samples were analyzed and measured. The results of statistical analysis of experiment data showed that the irrigation of the two varieties of bean crops (Cyprus and Aquadulcy) with magnetized water Mw compared to the non-magnetized water N Mw increased significantly in the number of plant branches and plant height. The increase was high significant in germination rate. The increase in productivity was significant in the weight of dry pods, the weight of dry seeds and the total weight of the plant and very high significant in the weight of 100 seeds (g). The other characteristics of the plant, such as vitality, weight, number of root nodes and harvesting index, were not affected by magnetic water. The results of the statistical analysis of soil collected in the first and third stage showed no significant differences between soil irrigated with magnetic water and irrigated soil with untreated water in most of the chemical properties of the soil, except for the dissolved potassium K and pH, the differences were highly significant in the soils collected in the third stage. The results of the statistical analysis of soil data collected in the second stage showed significant and high significant differences between soil irrigated with magnetic water and soil irrigated with untreated water in most of the chemical properties of the soil.

scholarly journals Occurrence of Mycobacterium avium subsp. paratuberculosis in Untreated Water in Northern Ireland

2005 ◽  
Vol 71 (11) ◽  
pp. 7107-7112 ◽  
Author(s):  
Lynne Whan ◽  
Hywel J. Ball ◽  
Irene R. Grant ◽  
Michael T. Rowe
Keyword(s):  
Water Treatment ◽  
Northern Ireland ◽  
Mycobacterium Avium ◽  
Water Samples ◽  
Agricultural Runoff ◽  
Fecal Coliforms ◽  
Detection Methods ◽  
Catchment Areas ◽  
Significant Difference ◽  
Untreated Water

ABSTRACT Mycobacterium avium subsp. paratuberculosis is the known cause of Johne's disease of both domestic and wild ruminants and has been implicated as a possible cause of Crohn's disease in humans. The organism is shed in the feces of infected animals and can survive for protracted periods in the environment and hence could be present in catchment areas receiving agricultural runoff. A limited survey was undertaken in Northern Ireland to test for M. avium subsp. paratuberculosis in untreated water entering nine water treatment works (WTWs) over a 1-year period. Three detection methods were employed, viz., immunomagnetic separation-PCR and culture on Herrold's egg yolk medium (HEYM) and BACTEC 12B medium, the latter both supplemented with mycobactins. Of the 192 untreated water samples tested, 15 (8%) tested M. avium subsp. paratuberculosis positive by one or more of the three detection methods. M. avium subsp. paratuberculosis was successfully isolated from eight untreated water samples, three by BACTEC culture and five by culture on HEYM. Although the highest incidence of M. avium subsp. paratuberculosis was found in spring, overall, there was no statistically significant difference between the seasons. No significant correlation was found between numbers of coliforms or fecal coliforms and the presence of M. avium subsp. paratuberculosis. In general, a higher incidence of M. avium subsp. paratuberculosis was found in untreated water entering those WTWs that had a high mean water pH value over the sampling period. This work indicates the need to determine the efficacy of water treatment processes to either kill or remove M. avium subsp. paratuberculosis from untreated water and the possible risks posed by contact with recreational water sources.

scholarly journals After the flood: an evaluation of in-home drinking water treatment with combined flocculent-disinfectant following Tropical Storm Jeanne — Gonaives, Haiti, 2004

2007 ◽  
Vol 5 (3) ◽  
pp. 367-374 ◽  
Author(s):  
Romulo E. Colindres ◽  
Seema Jain ◽  
Anna Bowen ◽  
Eric Mintz ◽  
Polyana Domond
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Water Sources ◽  
Tropical Storm ◽  
Coliform Bacteria ◽  
Residual Chlorine ◽  
Household Water ◽  
Untreated Water ◽  
Local Leaders

Tropical Storm Jeanne struck Haiti in September 2004, causing widespread flooding which contaminated water sources, displaced thousands of families and killed approximately 2,800 people. Local leaders distributed PūR®, a flocculent-disinfectant product for household water treatment, to affected populations. We evaluated knowledge, attitudes, practices, and drinking water quality among a sample of PūR® recipients. We interviewed representatives of 100 households in three rural communities who received PūR® and PūR®-related education. Water sources were tested for fecal contamination and turbidity; stored household water was tested for residual chlorine. All households relied on untreated water sources (springs [66%], wells [15%], community taps [13%], and rivers [6%]). After distribution, PūR® was the most common in-home treatment method (58%) followed by chlorination (30%), plant-based flocculation (6%), boiling (5%), and filtration (1%). Seventy-eight percent of respondents correctly answered five questions about how to use PūR®; 81% reported PūR® easy to use; and 97% reported that PūR®-treated water appears, tastes, and smells better than untreated water. Although water sources tested appeared clear, fecal coliform bacteria were detected in all sources (range 1 – >200 cfu/100 ml). Chlorine was present in 10 (45%) of 22 stored drinking water samples in households using PūR®. PūR® was well-accepted and properly used in remote communities where local leaders helped with distribution and education. This highly effective water purification method can help protect disaster-affected communities from waterborne disease.

The impacts of magnetized water treatment on different morphological and physiological factors of plant species in arid regions

2019 ◽  
Vol 19 (6) ◽  
pp. 1587-1596 ◽  
Author(s):  
R. Mohammadi ◽  
M. T. Dastorani ◽  
M. Akbari ◽  
H. Ahani
Keyword(s):  
Water Treatment ◽  
Leaf Area ◽  
Block Design ◽  
Arid Environments ◽  
Product Analysis ◽  
Growth Indices ◽  
Area Index ◽  
Vegetation Growth ◽  
Magnetized Water ◽  
Relative Water

Abstract The aim of this study was to investigate the effects of magnetized water treatment (MWT) on some vegetation growth indices in arid areas of northeast Iran. For this purpose, the impacts of MWT were examined in terms of leaf area, special leaf area, and some of the physiographic indicators such as relative water capacity and foliar chlorophyll content in three species endemic to arid environments, namely Nitraria, Haloxylon, and Atriplex. In addition to the factors mentioned, acidity (pH) and electrical conductivity (EC) were also measured. This research was conducted in a completely randomized block design with three replications. Data analysis was carried out via the analysis of variance using MSTAT software. The results showed that species irrigated with magnetized water had better performance on measured growth indices. On average, the amount of increase for morphology and physiology parameters in the three species irrigated by MW (comparing with those irrigated by normal water) were: leaf development by 121.74 (19.59%), leaf area index (LAI) by 108.97 (17.5%) mm2, special leaf area (SAL) by 8.68%, relative water content (RWC) by 9.81%, and special product analysis division (SPAD) by 14.77%. The water magnetization process also reduced pH by 0.5 and EC by 0.3 μmhos.cm−1.

scholarly journals Purification and biochemical characterization of egg-mass lectin of fresh water snail, Biomphalaria glabrata.

1987 ◽  
Vol 31 (4) ◽  
pp. 257-264
Author(s):  
Satoshi Itoh ◽  
Hiroaki Asaga ◽  
Osamu Ikeda ◽  
Tsutomu Inoue
Keyword(s):  
Fresh Water ◽  
Biochemical Characterization ◽  
Biomphalaria Glabrata ◽  
Egg Mass ◽  
Fresh Water Snail

scholarly journals Tratamento de águas residuais utilizando o bambu como filtro

2020 ◽  
Vol 1 (51) ◽  
pp. 123
Author(s):  
Jaiane Dos Santos Pastor ◽  
Antônio Da Silva Sobrinho Júnior ◽  
Gabrielly Da Mota Nunes
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
Water Supply ◽  
Rural Areas ◽  
Water Bodies ◽  
Human Consumption ◽  
Laboratory Studies ◽  
Reuse Water ◽  
Naked Eye ◽  
Untreated Water

Water is crucial for the survival of living beings, but its scarcity has been one of the biggest problems that humanity has faced. In Brazil, many households still do not have sewage collection and water supply, especially in rural areas, making it necessary to reuse water or even to use untreated water, which is unsuitable for human consumption. Therefore, scholars have developed means of water treatment, however, some methods are expensive, inefficient and can cause pollution to the environment. It is necessary to develop sustainable, accessible and economical treatments. This study exposes a method using bamboo as a filter for the treatment of wastewater from washing for non-potable purposes. The analyzes involve laboratory studies with devices and perception with the naked eye, the results obtained were compared to COEMA Resolution No. 2 of 02/02/2017 and NBR 13969/1997, which determine criteria and standards so that wastewater can be reused for purposes not drinkable or released into water bodies, in this study it was be shown that bamboo can be an alternative filter for wastewater treatment.

Plasticity in shell selection behaviour by the endemic hermit crab Diogenes alias (Anomura, Diogenidae) from the northeastern Arabian Sea, India

Crustaceana ◽  
2020 ◽  
Vol 93 (9-10) ◽  
pp. 1135-1152
Author(s):  
T. Nirmal ◽  
P. M. Nuzaiba ◽  
Alexandre R. Da Silva ◽  
A. Pavan Kumar ◽  
A. Biju Kumar ◽  
...  
Keyword(s):  
Hermit Crab ◽  
Arabian Sea ◽  
Hermit Crabs ◽  
Shell Size ◽  
Demographic Groups ◽  
Volume Weight ◽  
Aperture Width ◽  
Internal Volume ◽  
Species Preferences ◽  
Selection Of

Abstract Selection of gastropod shells as shelter by hermit crabs in controlled experiments would provide useful information on the utility of these shells in nature. In this study, shell size and species preferences of Diogenes alias from the northeastern Arabian Sea were quantified by free choice experiments. Males of D. alias, prefer Indothais lacera and Tibia curta, when choice was given; no differences were found for other demographic groups. All hermit crabs occupied larger shells than the shells they occupied in nature. The best correlation was observed between internal volume, weight, and aperture width of the shell with the size of the hermit crab. This pattern has also been reported for other species (i.e., Clibanarius albidigitus, Calcinus tibicen, and C. obscurus). Furthermore, the present study highlights the importance of optimal resources in a scarce environment.

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