Natural Resources最新文献

Embryonic Development and Eclosion Season of New Species Berastagia (Lepidoptera: Pyralidae) from Taiwan 台湾褐蚜新种的胚胎发育及羽化季节研究(鳞翅目:蚜科)

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.142002

Tzu-Yang Weng, Wei-Ren Liang, Cian-Yi Lin, Cha-Hao Hsu, Ching-Jung Lin, Y. Ueng

引用次数: 0

Modelling of the Hydrogeological Behaviour of the Tassette Aquifer: Study of the Possibilities of Exploiting This Aquifer as an Alternative against the Limestone Problem in the Commune of Thies 穗状含水层水文地质行为的模拟:利用穗状含水层作为解决蒂斯公社石灰岩问题的备选方案的可能性研究

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.1410014

Saidou Ndao, Famara Seydi Ba, Papa Babacar Diop Thioune, Diadioly Gassama

{"title":"Modelling of the Hydrogeological Behaviour of the Tassette Aquifer: Study of the Possibilities of Exploiting This Aquifer as an Alternative against the Limestone Problem in the Commune of Thies","authors":"Saidou Ndao, Famara Seydi Ba, Papa Babacar Diop Thioune, Diadioly Gassama","doi":"10.4236/nr.2023.1410014","DOIUrl":"https://doi.org/10.4236/nr.2023.1410014","url":null,"abstract":"Senegal’s drinking water supply comes on the one hand from groundwater and mainly from Maastrichtian and Paleocene aquifers. The Tassette area included in the Thies region has such potential that the Paleocene is currently exploited to cover a certain part of Dakar’s important water needs. In addition, the city of Thies is itself confronted with the problems of limestone present in its drinking water and generally creating problems of scaling pipes. A water transfer is therefore a possible option to deal with this situation. This study will consist of modelling the Tassette aquifer to determine if it will cover Thies’ water needs over a period of 20 years. To assess the responses of the groundwater to pumping at this level and the changes that may occur, a numerical hydrogeological model is necessary. In order to have a better overview of the area, boreholes and piezometric tests were carried out, highlighting the different characteristics of the aquifer and the water it contains. Based on these, the model was developed according to a mesh system and more precisely by discretization and simulation according to the finite difference method from the Visual Modflow Flex software. The results observed for this modelling show that the city of Thies cannot be supplied as a whole. This mining model also causes brackish water intrusion. On the other hand, the additional withdrawal of a certain quantity of water compared to the current situation does not have as great negative impacts and would still partially meet the expectations of this modelling.","PeriodicalId":19086,"journal":{"name":"Natural Resources","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135658890","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}

引用次数: 0

The Evolution of Landscape Layout Concept of Lingnan Taoist Zuting Temples in the Qing Dynasty 清代岭南祖亭道观景观布局观念的演变

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.148009

Chaohui Lin

引用次数: 0

Growth Rate and Chemical Muscle Composition of Oreochromis niloticus Fish Cultured in Drainage Water and Fed Antioxidant Supplemented Diet nilochromis 生长速率和肌肉化学成分排水养殖鱼和添加抗氧化剂饲料

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.149011

Khalid H. Zaghloul, Samah A. Abdel-Salam, Safaa S. Aljilaney, Heba A. El-Dash

{"title":"Growth Rate and Chemical Muscle Composition of &lt;i&gt;Oreochromis niloticus&lt;/i&gt; Fish Cultured in Drainage Water and Fed Antioxidant Supplemented Diet","authors":"Khalid H. Zaghloul, Samah A. Abdel-Salam, Safaa S. Aljilaney, Heba A. El-Dash","doi":"10.4236/nr.2023.149011","DOIUrl":"https://doi.org/10.4236/nr.2023.149011","url":null,"abstract":"Irrigation of fish farms with agricultural drainage water may affect cultured fish species. So, the present study utilizes antioxidants supplemented diet to overcome deterioration of drainage water and its negative effect on fish. The studied groups are fish cultured in dechlorinated tap water as control group or drainage water and fed commercial basal diet. While, the other studied groups represented by Oreochromis niloticus fish cultured in drainage water and fed either commercial diet supplemented with vitamin C (5 g/kg diet) or fennel (5 g/kg diet) for 12 weeks. Results of the water physico-chemical parameters of all studied treatments revealed deterioration of the drainage water with a decrease in dissolved oxygen and an increase in pH, total hardness, total alkalinity, salinity, ammonia, nitrite and heavy metals (Cu, Pb and Cd) with significant differences (P ≤ 0.01) in comparison to that of the control dechlorinated tap water group. Data clarified also that Oreochromis niloticus cultured in drainage water showed a decrease in growth rate accompanied by deterioration of fish meat quality. However, fish reared in the same drainage water for the same exposure period and fed vitamin C or fennel supplemented basal diet (5 g/kg diet) recorded values of the studied parameters more or less similar to that of control group fish. Data of the present study, empowered aquaculturist to supplement fish rations with fennel or vitamin C as antioxidants to improve fish growth rate, meat quality as well as protect fish against heavy metals toxicity that could threat Human Being.","PeriodicalId":19086,"journal":{"name":"Natural Resources","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135551097","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}

引用次数: 0

Legacy Gold Mine Sites & Dumps in the Witwatersrand: Challenges and Required Action 威特沃特斯兰德的传统金矿遗址和垃圾场:挑战和需要采取的行动

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.145005

Sunday Mishack Mabaso

引用次数: 1

Improving Sustainability by Privatizing Wildlife Conservation 通过野生动物保护私有化提高可持续性

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.144004

R. Wright

引用次数: 0

Regeneration Potential of Woody Species at the Side of Secondary Roads Post-Logging of Loundoungou-Toukoulaka Forest Management Unit, Republic of the Congo 刚果共和国loundoungoua - toukoulaka森林管理单位二级公路旁木本物种采伐后的再生潜力

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.147008

Chauvelin Douh, Larisa Mbouchi Malonga, D. N’zala, Belvina Chardène Mabengo, Christian Moussoumbou, Saint Fédriche Ndzaï, Félix Koubouana

引用次数: 1

Compiling and Mapping an International Climate Change Database: Worlds of Gaps and Unevenness 编制和绘制国际气候变化数据库:差距和不平衡的世界

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.143003

S. Brunn

引用次数: 0

Impact of Water Deterioration on Growth Indices and Meat Quality of Tilapia zillii and Solea aegyptiaca Fish Inhabiting Lake Qaroun, Egypt 水质恶化对栖息于埃及卡伦湖的 &lt;i&gt;Tilapia zillii&lt;/i&gt; 和 &lt;i&gt;Solea aegyptiaca&lt;/i&gt; 鱼类生长指数和肉质的影响

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.149010

Khalid H. Zaghloul, Sara R. Ramadan, Safaa S. Aljilaney, Mohamed A. Helaly

{"title":"Impact of Water Deterioration on Growth Indices and Meat Quality of &lt;i&gt;Tilapia zillii&lt;/i&gt; and &lt;i&gt;Solea aegyptiaca&lt;/i&gt; Fish Inhabiting Lake Qaroun, Egypt","authors":"Khalid H. Zaghloul, Sara R. Ramadan, Safaa S. Aljilaney, Mohamed A. Helaly","doi":"10.4236/nr.2023.149010","DOIUrl":"https://doi.org/10.4236/nr.2023.149010","url":null,"abstract":"The present work studies water deterioration, fish survival and production as a result of effluents discharged directly without prior treatments into lake Qaroun at Fayoum governorate, Egypt. Lake Qaroun represents heavily polluted wild habitat for both studied fish species, Tilapia zillii and Solea aegyptiaca, the most abundant species. Results revealed deterioration in water quality (low dissolved oxygen but high ammonia, nitrite, copper, lead and cadmium) of Northeastern sector where El-Bats drain discharge its effluents without prior treatment followed by that of eastern sector at four km from the point of El-Bats discharge. Water salinity and dissolved oxygen values were in the following order: Western lake Qaroun sector > Eastern lake Qaroun sector > Northeastern lake Qaroun sector. However, Ammonia and nitrite readings were in the following order: Northeastern sector of Lake Qaroun is followed by the Eastern sector, then the Western sector. Moreover, results of the present field study revealed a decrease in fish production with the lowest condition factor and a deterioration in meat quality (an increase in muscle water content and ash but a decrease total protein and total lipids) in case of fish collected from the polluted sites along the lake (Northeastern and eastern sectors). However, fish collected from the unpolluted western sector of the lake showed condition factor and chemical muscle composition more or less similar to normal healthy fish.","PeriodicalId":19086,"journal":{"name":"Natural Resources","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135556538","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}

引用次数: 0

Benthic Macroinvertebrates of Bull Run Creek: A Pre-Restoration Baseline 布尔润溪底栖大型无脊椎动物:恢复前的基线

Natural Resources Pub Date : 2023-01-01 DOI: 10.4236/nr.2023.146006

Joseph A. Corsini, J. Zakrajsek, Robert J Hassmiller

引用次数: 0