Pesticide residues in muscle and organs of farm animals (cow, camel and goat) were assessed. Samples of muscle (meat), liver, kidney and heart were collected from central abattoirs in the four emirate councils of Kebbi State in order to determine their level of contamination. Residues were extracted from the samples using standard operating procedures and analysed with GC-MS (Intuvo 9000 model) coupled with ECD. Total pesticide residues in the samples ranged from 0.113 to 2.532µg/Kg (muscle), 0.095 to 2.341µg/Kg (liver), 0.047 to 0.931µg/Kg (kidney and 0.026 to 0.361µg/Kg (heart). Pesticide residues concentrations were in the order; muscle > liver > kidney > heart. Analysis of the results obtained also shown that 12.150% of samples from Yauri emirate were contaminated with pesticide residues, 11.249% were contaminated from Argungu, 7.834% from Zuru and 5.784% from B/Kebbi. Samples of muscle and organs from cow accumulated 47.04% of the detected pesticide residues, Camel accumulated 44.48% of the detected residues and goat muscles and organs accumulated 8.48% of the detected pesticide residues. The concentrations of all the assessed pesticides observed in the muscle and organs were however lower than the recommended maximum residual limits (MRLs).
{"title":"DETERMINATION OF PESTICIDE RESIDUES IN MUSCLE AND ORGANS OF COW, CAMEL AND GOAT IN BIRNIN KEBBI, KEBBI STATE, NIGERIA","authors":"Anthony Osesua, Fasiku Omoniyi","doi":"10.47604/ijes.1571","DOIUrl":"https://doi.org/10.47604/ijes.1571","url":null,"abstract":"Pesticide residues in muscle and organs of farm animals (cow, camel and goat) were assessed. Samples of muscle (meat), liver, kidney and heart were collected from central abattoirs in the four emirate councils of Kebbi State in order to determine their level of contamination. Residues were extracted from the samples using standard operating procedures and analysed with GC-MS (Intuvo 9000 model) coupled with ECD. Total pesticide residues in the samples ranged from 0.113 to 2.532µg/Kg (muscle), 0.095 to 2.341µg/Kg (liver), 0.047 to 0.931µg/Kg (kidney and 0.026 to 0.361µg/Kg (heart). Pesticide residues concentrations were in the order; muscle > liver > kidney > heart. Analysis of the results obtained also shown that 12.150% of samples from Yauri emirate were contaminated with pesticide residues, 11.249% were contaminated from Argungu, 7.834% from Zuru and 5.784% from B/Kebbi. Samples of muscle and organs from cow accumulated 47.04% of the detected pesticide residues, Camel accumulated 44.48% of the detected residues and goat muscles and organs accumulated 8.48% of the detected pesticide residues. The concentrations of all the assessed pesticides observed in the muscle and organs were however lower than the recommended maximum residual limits (MRLs).","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"32 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75356640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-06DOI: 10.21608/cat.2022.248281
Hesham Abd El-Monsef, E. Shendi, Ebtehal Mohamed, Scot E. Smith, S. Hany
The goal of this study was to identify potential sites in the Bitter Lakes region for urban and agricultural development. Residential, institutional, commercial, and industrial lands are the four categories of urban land. Agrarian, parks, and green zones are examples of cultivated lands. Economic, social, and environmental factors are the key dimensions of Egypt's 2030 Sustainable Development Strategy. Economic development is the most significant and highest priority dimension, which comprises developing agricultural areas, supporting agro-industry (national industry), and constructing new urban settlements in order to accomplish integrated development. The suitable lands for future development were selected according to geomorphological, hydrological, environmental, social, and geological parameters. These parameters were used to create geospatial database for the study area. To avoid any future problems might be resulting from mis-planning, accurate and modern land use planning principals, field work, laboratory tests and analyses, remote sensing, and GIS techniques were integrated. To get the final highly suitable lands for development; analytical hierarchy process (AHP) steps were applied. AHP used to identify the best suitable lands from a set of alternatives with respect to several criteria and their weights. Finally, the research area was separated into three major zones to design the urban master plan: core urban zone, outer urban zone, and outskirts zone.
{"title":"Developing a Master Urban Plan for the west Bitter Lakes Region, Ismailia, Egypt, using geology considerations and the analytic hierarchy process (AHP)","authors":"Hesham Abd El-Monsef, E. Shendi, Ebtehal Mohamed, Scot E. Smith, S. Hany","doi":"10.21608/cat.2022.248281","DOIUrl":"https://doi.org/10.21608/cat.2022.248281","url":null,"abstract":"The goal of this study was to identify potential sites in the Bitter Lakes region for urban and agricultural development. Residential, institutional, commercial, and industrial lands are the four categories of urban land. Agrarian, parks, and green zones are examples of cultivated lands. Economic, social, and environmental factors are the key dimensions of Egypt's 2030 Sustainable Development Strategy. Economic development is the most significant and highest priority dimension, which comprises developing agricultural areas, supporting agro-industry (national industry), and constructing new urban settlements in order to accomplish integrated development. The suitable lands for future development were selected according to geomorphological, hydrological, environmental, social, and geological parameters. These parameters were used to create geospatial database for the study area. To avoid any future problems might be resulting from mis-planning, accurate and modern land use planning principals, field work, laboratory tests and analyses, remote sensing, and GIS techniques were integrated. To get the final highly suitable lands for development; analytical hierarchy process (AHP) steps were applied. AHP used to identify the best suitable lands from a set of alternatives with respect to several criteria and their weights. Finally, the research area was separated into three major zones to design the urban master plan: core urban zone, outer urban zone, and outskirts zone.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"3 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82913606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-06DOI: 10.21608/cat.2022.248578
M. Shuaib, S. Gul, F. Hussain, S. Abidullah
Brassica campestris is a typical daily crop grown all over the world as a source of fodder, vegetables, and oil. The allelopathic effects of Populus nigra L. and Melia azedarach L. extracted leaves on seed germination and growth performance of Brassica campestris L. were studied in the field and in the laboratory. Seeds of Brassica campestris were seeded in pots in the field, whereas seeds sown in tap water were considered as a control. Different leave weight, of both P. nigra L. and M. azedarach was used and mixed with soil separately, to test their allopathic effects. Growth parameters including stem height, stem diameter, leaf number, number of internodes, internodal length, fresh and dry weight of the stem, and 1000 seed-weight were investigated. Number of flowers per plant; and inflorescence size were also considered. The results revealed that all measured parameters of B. campestris were negatively influenced, with the exception of internodal length, which was found to be positively affected. Seeds treated with plant extracts showed an inhibitory effect on seed germination which was directly proportional with doses of leaves weight used. In laboratory experiments, the allelopathic effects of P. nigra aqueous extract on seed germination (%) as well as growth performance of germinated seed, expressed as plumule length and radicle length, of B. campestris were reported. Parallel to the field experiment, a high dose of leaf weight extracted from dried leaves greatly decreased seed germination (%) and growth measured parameters, which are proportional to extracted leaf weight.
{"title":"Allelopathic effect of Melia azedarach L. and Populus nigra L. on germination and growth Brassica campestris L.","authors":"M. Shuaib, S. Gul, F. Hussain, S. Abidullah","doi":"10.21608/cat.2022.248578","DOIUrl":"https://doi.org/10.21608/cat.2022.248578","url":null,"abstract":"Brassica campestris is a typical daily crop grown all over the world as a source of fodder, vegetables, and oil. The allelopathic effects of Populus nigra L. and Melia azedarach L. extracted leaves on seed germination and growth performance of Brassica campestris L. were studied in the field and in the laboratory. Seeds of Brassica campestris were seeded in pots in the field, whereas seeds sown in tap water were considered as a control. Different leave weight, of both P. nigra L. and M. azedarach was used and mixed with soil separately, to test their allopathic effects. Growth parameters including stem height, stem diameter, leaf number, number of internodes, internodal length, fresh and dry weight of the stem, and 1000 seed-weight were investigated. Number of flowers per plant; and inflorescence size were also considered. The results revealed that all measured parameters of B. campestris were negatively influenced, with the exception of internodal length, which was found to be positively affected. Seeds treated with plant extracts showed an inhibitory effect on seed germination which was directly proportional with doses of leaves weight used. In laboratory experiments, the allelopathic effects of P. nigra aqueous extract on seed germination (%) as well as growth performance of germinated seed, expressed as plumule length and radicle length, of B. campestris were reported. Parallel to the field experiment, a high dose of leaf weight extracted from dried leaves greatly decreased seed germination (%) and growth measured parameters, which are proportional to extracted leaf weight.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"35 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81388507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/cat.2022.139311.1127
A. El‐Sayed, Mohammad Abu Dobara, H. Saleh
{"title":"“Aminoglycosides Resistance Gene Detection by Multiplex PCR for Klebsiella pneumoniae and Escherichia coli by Multiplex PCR ”","authors":"A. El‐Sayed, Mohammad Abu Dobara, H. Saleh","doi":"10.21608/cat.2022.139311.1127","DOIUrl":"https://doi.org/10.21608/cat.2022.139311.1127","url":null,"abstract":"","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"74 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86030070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/cat.2022.147050.1134
Ayman Hamada, Osama Elgebaly, M. El khayat, S. Riad
Wind farms along bird migration routes may be very hazardous. During the spring migration season in 2020, a study on the collision of bat and bird species was carried out on the KFW 240 MW (120 WTGs) wind farm. Direct inspections by searchers and unsystematic line transect searches with autos were used in the carcass searches technique. To examine the collected data, the GenEst estimator was used. During a systematic search, six bird carcasses/remains were discovered, three of which belonged to migratory soaring birds (MSB) with the least concern status. During the unsystematic search, two MSB and one Passerine carcasses were discovered, but no bat carcasses were found as collision victims. Furthermore, no bird or bat carcasses were detected beneath the high voltage powerlines that run parallel to the wind farm. Carcass persistence trials revealed that MSB lasted 23.92 days while little passerines lasted 3 days. The detection probability for all decay types was 87.2, 93.3 % for MSB, and 41.9 % for tiny Passerines. Moreover, the final fatality estimation for the plant and its structures was 0.084 MSB fatality/ turbine/ season, 0.166 Passerine/ turbine/ season.
{"title":"Impact of a Wind Energy Projects on Bird Migration Gabel Al-Zeit - Eastern Desert, Egypt","authors":"Ayman Hamada, Osama Elgebaly, M. El khayat, S. Riad","doi":"10.21608/cat.2022.147050.1134","DOIUrl":"https://doi.org/10.21608/cat.2022.147050.1134","url":null,"abstract":"Wind farms along bird migration routes may be very hazardous. During the spring migration season in 2020, a study on the collision of bat and bird species was carried out on the KFW 240 MW (120 WTGs) wind farm. Direct inspections by searchers and unsystematic line transect searches with autos were used in the carcass searches technique. To examine the collected data, the GenEst estimator was used. During a systematic search, six bird carcasses/remains were discovered, three of which belonged to migratory soaring birds (MSB) with the least concern status. During the unsystematic search, two MSB and one Passerine carcasses were discovered, but no bat carcasses were found as collision victims. Furthermore, no bird or bat carcasses were detected beneath the high voltage powerlines that run parallel to the wind farm. Carcass persistence trials revealed that MSB lasted 23.92 days while little passerines lasted 3 days. The detection probability for all decay types was 87.2, 93.3 % for MSB, and 41.9 % for tiny Passerines. Moreover, the final fatality estimation for the plant and its structures was 0.084 MSB fatality/ turbine/ season, 0.166 Passerine/ turbine/ season.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"176 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88999410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/cat.2022.138219.1125
Mervat Mossad, M. El-Gammal, A. El-Zeiny, A. Gebril
Water quality and quantity have diminished in the agricultural area of west Luxor due to excessive water use and land management techniques. The current study intends to monitor the hydrogeochemical processes of water resources in Egypt's west Luxor area. In August 2021, 79 surface, shallow, and groundwater samples were collected in the study area. In this investigation, three statistical techniques were used: classical, cluster hydrogeochemical statistical analysis (CA), and geo-statistical analysis. Water characteristics are mapped using the Kriging method, which is a Geo-Statistical tool in ArcMap 10.4.1. The laboratory results of the Piper trainer diagram integration (CA) and geo-statistical prediction maps showed that cations (Na + > Ca 2+ > Mg 2+ > K + ) and anions (Cl - > SO 42- > HCO 3- > CO 32- ) dominated. The majority of water types in all samples were Na-Cl, Mixed Na-Cl-HCO 3 , Mixed Na-Cl-SO 4 , and Mixed Na-Ca-Mg-HCO 3 . Prediction maps coincide with hydro-geochemical statistical analysis, which showed that salts and measured heavy metals (Fe, Mn, Co, Ni, Cd, Pb, As) levels in groundwater and shallow water samples were greater than those of Egyptian Standard Limits, while surface water had high pH, HCO - , and CO 32- levels, indicating pollution sources. As a result, this study found that combining geostatistical and classical hydrogeochemical statistical analysis produced a good assessment of both natural water processes and water quality in the west Luxor area.
由于过度用水和土地管理技术，西卢克索农业区的水质和水量已经下降。目前的研究旨在监测埃及西卢克索地区水资源的水文地球化学过程。2021年8月，在研究区域收集了79个地表、浅层和地下水样本。本研究采用了三种统计方法:经典水文地球化学统计分析、聚类水文地球化学统计分析和地质统计分析。使用Kriging方法绘制水特征图，这是arcmap10.4.1中的地质统计工具。Piper trainer图综合(CA)和地球统计预测图的实验室结果表明，阳离子(Na + > CA 2+ > Mg 2+ > K +)和阴离子(Cl - > SO 42- > HCO 3- > CO 32-)占主导地位。所有样品的水类型主要为Na-Cl、混合Na-Cl- hco 3、混合Na-Cl- so4和混合Na-Ca-Mg-HCO 3。预测图与水文地球化学统计分析相吻合，地下水和浅水样品中的盐和测量重金属(Fe, Mn, Co, Ni, Cd, Pb, As)含量高于埃及标准限量，而地表水的pH, HCO -和Co 32-含量较高，表明污染源。结果表明，将地质统计学与经典水文地球化学统计分析相结合，可以很好地评价卢克索西部地区的自然水过程和水质。
{"title":"Hydrogeochemical Facies Investigation of Surface and Groundwater Resources at West Luxor Area, Egypt using Spatial and Statistical Techniques","authors":"Mervat Mossad, M. El-Gammal, A. El-Zeiny, A. Gebril","doi":"10.21608/cat.2022.138219.1125","DOIUrl":"https://doi.org/10.21608/cat.2022.138219.1125","url":null,"abstract":"Water quality and quantity have diminished in the agricultural area of west Luxor due to excessive water use and land management techniques. The current study intends to monitor the hydrogeochemical processes of water resources in Egypt's west Luxor area. In August 2021, 79 surface, shallow, and groundwater samples were collected in the study area. In this investigation, three statistical techniques were used: classical, cluster hydrogeochemical statistical analysis (CA), and geo-statistical analysis. Water characteristics are mapped using the Kriging method, which is a Geo-Statistical tool in ArcMap 10.4.1. The laboratory results of the Piper trainer diagram integration (CA) and geo-statistical prediction maps showed that cations (Na + > Ca 2+ > Mg 2+ > K + ) and anions (Cl - > SO 42- > HCO 3- > CO 32- ) dominated. The majority of water types in all samples were Na-Cl, Mixed Na-Cl-HCO 3 , Mixed Na-Cl-SO 4 , and Mixed Na-Ca-Mg-HCO 3 . Prediction maps coincide with hydro-geochemical statistical analysis, which showed that salts and measured heavy metals (Fe, Mn, Co, Ni, Cd, Pb, As) levels in groundwater and shallow water samples were greater than those of Egyptian Standard Limits, while surface water had high pH, HCO - , and CO 32- levels, indicating pollution sources. As a result, this study found that combining geostatistical and classical hydrogeochemical statistical analysis produced a good assessment of both natural water processes and water quality in the west Luxor area.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"29 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82842594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/cat.2022.154869.1140
A. Moustafa, S. Mansour
The COVID-19 pandemic had scarcely made an impact on the world as of the beginning of 2020, although it has quickly spread over the universe since it was first detected in early December 2019. By mid-March 2021, the COVID-19 had practically hit every country on the earth. As a primary precaution to prevent the spread of disease and mortality, some nations have implemented quarantines and the suspension of many activities. The termination of these activities has resulted in significant economic losses. However, it has been widely reported that these steps have improved air quality, particularly in highly polluted areas with considerable populations and industrial activity. Worldwide reports and verification of lower carbon, nitrogen, sulphur, and particulate matter emissions have been made in relation with shutdown times. On the other hand, it has been revealed that ozone levels in the ambient air have increased, owing mostly to lower nitrogen emissions. Furthermore, it has been claimed that natural water resources have higher water quality. Wastewater treatment plants have reported an increase in organic load with persistent chemicals as a result of increased use of sanitizers, disinfectants, and antibiotics. In general, the qualitative and quantitative volumes of solid waste, created as a result of the COVID-19 outbreak, have both increased. This study presents and summarises the environmental impacts of COVID-19 as recorded in the literature for various countries throughout the world, which provides a comprehensive perspective of the COVID-19's environmental consequences.
{"title":"Impact of Covid-19 on the environment","authors":"A. Moustafa, S. Mansour","doi":"10.21608/cat.2022.154869.1140","DOIUrl":"https://doi.org/10.21608/cat.2022.154869.1140","url":null,"abstract":"The COVID-19 pandemic had scarcely made an impact on the world as of the beginning of 2020, although it has quickly spread over the universe since it was first detected in early December 2019. By mid-March 2021, the COVID-19 had practically hit every country on the earth. As a primary precaution to prevent the spread of disease and mortality, some nations have implemented quarantines and the suspension of many activities. The termination of these activities has resulted in significant economic losses. However, it has been widely reported that these steps have improved air quality, particularly in highly polluted areas with considerable populations and industrial activity. Worldwide reports and verification of lower carbon, nitrogen, sulphur, and particulate matter emissions have been made in relation with shutdown times. On the other hand, it has been revealed that ozone levels in the ambient air have increased, owing mostly to lower nitrogen emissions. Furthermore, it has been claimed that natural water resources have higher water quality. Wastewater treatment plants have reported an increase in organic load with persistent chemicals as a result of increased use of sanitizers, disinfectants, and antibiotics. In general, the qualitative and quantitative volumes of solid waste, created as a result of the COVID-19 outbreak, have both increased. This study presents and summarises the environmental impacts of COVID-19 as recorded in the literature for various countries throughout the world, which provides a comprehensive perspective of the COVID-19's environmental consequences.","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"20 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74040493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/cat.2022.143735.1132
Radwa N. Elmaghalawy, Selwan Abdelhakam
{"title":"Light Intensity and Phenotypic Response in Vicia faba L.","authors":"Radwa N. Elmaghalawy, Selwan Abdelhakam","doi":"10.21608/cat.2022.143735.1132","DOIUrl":"https://doi.org/10.21608/cat.2022.143735.1132","url":null,"abstract":"","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89611620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/cat.2022.134943.1124
Rehab M. El-Gendy, Rasha S. Sakla
The Caraway, Carum carvi essential oil was assessed to behave as natural control of bee parasitic mite, Varroa destructor during fall season instead of chemicals methods. Caraway oil (100%) was used and compared to the synthetic acaricide; Apistan. The number of fallen mites and infestation percentages on both adult and brood were estimated regarding the effects of essential oil on honeybees Apis mellifera. The essential oil from C. carvi seeds were extracted by hydro distillation and characterized by GC/MS. Sixteen compounds were identified representing; 97.33% of the oil. The predominant components were Limonene (38.81%), Carvone (35.43 %), α-Myrcene (7.3%), Dihydrocarvone (5.58%) and Limonene oxide (5.13%). The infestation reduction percentages, recorded with Caraway oil, reached 84.42% and 70.65% on adult and brood workers after 21 days of treatments with no statistical difference with Apistan. The mean numbers of fallen Varroa mites were (67.67) and (74.65) in hives treated by essential oil and Apistan, respectively. The immune response of honeybee workers and pupa revealed significant elevation in phenol oxidase activity with Caraway oil however, remarkable inhibition in the enzyme activity observed with workers exposed to Apistan. The comet assay performed on worker honeybee as a biomarker of DNA damage; revealed statistically significant increase in DNA damage caused with Apistan (20.1%) and infested bee (21.64 %) compared to corresponding one treated with Caraway essential oil (12.4%) and control (9.6%). Caraway essential oil proved a safe way as natural controlling of Varoaa destructive with keep guard of honeybee life and fit into
{"title":"Efficacy of Carum carvi essential oil against the parasitic varroa mite and its impact on honeybee Apis mellifera L.","authors":"Rehab M. El-Gendy, Rasha S. Sakla","doi":"10.21608/cat.2022.134943.1124","DOIUrl":"https://doi.org/10.21608/cat.2022.134943.1124","url":null,"abstract":"The Caraway, Carum carvi essential oil was assessed to behave as natural control of bee parasitic mite, Varroa destructor during fall season instead of chemicals methods. Caraway oil (100%) was used and compared to the synthetic acaricide; Apistan. The number of fallen mites and infestation percentages on both adult and brood were estimated regarding the effects of essential oil on honeybees Apis mellifera. The essential oil from C. carvi seeds were extracted by hydro distillation and characterized by GC/MS. Sixteen compounds were identified representing; 97.33% of the oil. The predominant components were Limonene (38.81%), Carvone (35.43 %), α-Myrcene (7.3%), Dihydrocarvone (5.58%) and Limonene oxide (5.13%). The infestation reduction percentages, recorded with Caraway oil, reached 84.42% and 70.65% on adult and brood workers after 21 days of treatments with no statistical difference with Apistan. The mean numbers of fallen Varroa mites were (67.67) and (74.65) in hives treated by essential oil and Apistan, respectively. The immune response of honeybee workers and pupa revealed significant elevation in phenol oxidase activity with Caraway oil however, remarkable inhibition in the enzyme activity observed with workers exposed to Apistan. The comet assay performed on worker honeybee as a biomarker of DNA damage; revealed statistically significant increase in DNA damage caused with Apistan (20.1%) and infested bee (21.64 %) compared to corresponding one treated with Caraway essential oil (12.4%) and control (9.6%). Caraway essential oil proved a safe way as natural controlling of Varoaa destructive with keep guard of honeybee life and fit into","PeriodicalId":42145,"journal":{"name":"Catrina-The International Journal of Environmental Sciences","volume":"10 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84038876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.21608/cat.2022.144432.1133
M. Mahmoud, S. Riad, Eman I. El Surtasi
Spatial variation in morphological traits associated with biochemical changes as a result of habitat isolation is still a lacking study for most Egyptian insect groups especially darkling beetles. The study of spatial variation in adaptation of morphometric and biochemical traits is the current aim. Therefore, the different populations of Scelosodis castaneus castaneus were sampled at thirteen sites belonged to four different Egyptian ecoregions in their nature: South Sinai, Nile Delta, the western desert Oases and the western Mediterranean coastal desert. Twenty-one morphometric measurements were taken by a threaded micrometer in addition to the assessment of whole body metabolites. Results showed a spatial significant variation within morphometric traits between different populations; where the morphometric trait in South Sinai was clear different than others, followed by, the population of the Nile Delta, the clade of the western desert Oases and the Mediterranean coastal desert. According to Canonical Correspondence Analysis, the total amount of protein and carbs in their food was significantly correlated with the diversity in biochemical features. The closer population was between the western desert Oases and Nile Delta regions. Finally, spatial variation in habitat nature has an important role in adaptive morphometric and biochemical traits for the same species.
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