scholarly journals Growth and phenotypic plasticity variability of Eichhornia crassipes in response to different eutrophic water in karst wetland

2021 ◽  
Vol 33 (1) ◽  
pp. 123-137
Author(s):  
Teng Qiumei ◽  
◽  
Sun Yingjie ◽  
Shen Yuyi ◽  
Zhang Denan ◽  
...  
Keyword(s):  
Phenotypic Plasticity ◽  
Eichhornia Crassipes ◽  
Eutrophic Water

Fate of 15 NO3 − and 15 NH4 + in the Treatment of Eutrophic Water Using the Floating Macrophyte, Eichhornia crassipes

2012 ◽  
Vol 41 (5) ◽  
pp. 1653-1660 ◽  
Author(s):  
Yan Gao ◽  
Neng Yi ◽  
Zhiyong Zhang ◽  
Haiqin Liu ◽  
Shaohua Yan
Keyword(s):  
Eichhornia Crassipes ◽  
Eutrophic Water ◽  
Floating Macrophyte

Effect of Eichhornia crassipes on production of N2 by denitrification in eutrophic water

2014 ◽  
Vol 68 ◽  
pp. 14-24 ◽  
Author(s):  
Yan Gao ◽  
Neng Yi ◽  
Yan Wang ◽  
Tao Ma ◽  
Qing Zhou ◽  
...  
Keyword(s):  
Eichhornia Crassipes ◽  
Eutrophic Water

Purification Efficiency of Compound Aquatic Plants for the Eutrophic Water Body

2014 ◽  
Vol 675-677 ◽  
pp. 430-433
Author(s):  
Hong Wang ◽  
Xin Wang ◽  
Shi Man Wang ◽  
Xian Chao Ji
Keyword(s):  
Removal Efficiency ◽  
Aquatic Plants ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Single Species ◽  
Ammonium Nitrogen ◽  
Ceratophyllum Demersum ◽  
Nitrogen And Phosphorus ◽  
Purification Efficiency ◽  
Eutrophic Water

In order to study combination effect of aquatic plants for the purification of eutrophic wastewater, research was carried out in greenhouse with water hyacinth (Eichhornia crassipes), hornwort (Ceratophyllum demersumL) an water milfoil (Myriophyllum verticillatum L). In the treatment of water hyacinth + water milfoil , the removal efficiency of ammonium nitrogen (NH4+-N), nitrite nitrogen (NO3--N) , total nitrogen (TN), total phosphorus (TP) and COD was 74.7%, 61.7%, 65.6%, 73.8% and 50.8% respectively. And that of water hyacinth + hornwort was 79.0%, 52.6%, 67.5%, 46.2% and 56.9%. The combination of different aquatic plants have better removal efficiency than single species. Water milfoil showed good removal ability for the eutrophication pollutants, such as nitrogen and phosphorus, while hornwort was good at the purification of COD.

Study of The Pharmacological Activity and Heavy Metal Content of Eichhornia Crassipes Extract

2019 ◽  
Vol 2 (2) ◽  
pp. 91-95 ◽  
Author(s):  
Jimmy Jimmy ◽  
Diah Indriani Widiputri ◽  
Paulus Gunawan
Keyword(s):  
Heavy Metal ◽  
Pharmacological Activity ◽  
Water Hyacinth ◽  
Metal Content ◽  
Eichhornia Crassipes ◽  
High Light Intensity ◽  
Milling Process ◽  
Heavy Metal Content ◽  
Solvent Ratio ◽  
Negative Impacts

Eichhornia crassipes is well-known as water hyacinth. Water hyacinth grows rapidly in the nutrient-rich water and high light intensity places. The uncontrollable growth of water hyacinth has caused many negative impacts to the environment. For instance, interrupted water transport and decreased population of aquatic lives. The capacity of utilising water hyacinth is slower than water hyacinth growth and water hyacinth is still considered as a threat to theecosystem. This work was focused on the study of the pharmacological activity and heavy metal content of water hyacinth in Lake Cipondoh, Tangerang. Fresh water hyacinth was pre-treated through oven-drying and milling process. After that, each part of the plant was macerated by using multiple extraction method with 96% ethanol/water and three variations of sample-to-solvent ratios (1:30, 1:50, and 1:75 w/v). The result of the experiment showed thatwater hyacinth leaves produced an extract with lowest IC 50 (55.76 ± 6.73 ppm) compared toother parts. The most optimum solvent used to achieve this result was 96% ethanol/water (1:1 v/v). In order to obtain the lowest antioxidant activity, the sample to solvent ratio used was 1:50 and the heavy metal in the extract was very low. With this result, it was concluded that there is a promising opportunity to apply the water hyacinth growing in Lake Cipondoh, Tangerang as herbal medicine ingredient. Through this utilization, the overall number of water hyacinth in Indonesia can be reduced or at the least be controlled, so that the environmental problem caused by this plant can be minimized.

Ecology and biogeography in the introduction to “De bestiis marinis” by Georg Wilhelm Steller

2019 ◽  
Vol 46 (1) ◽  
pp. 63-74
Author(s):  
Stefano Mattioli
Keyword(s):  
Body Size ◽  
Phenotypic Plasticity ◽  
Geographical Distribution ◽  
Functional Traits ◽  
Marine Mammals ◽  
Main Part ◽  
Wide Distribution ◽  
Restricted Range ◽  
Direct Influence ◽  
Modern Biology

The rediscovery of the original, unedited Latin manuscript of Georg Wilhelm Steller's “De bestiis marinis” (“On marine mammals”), first published in 1751, calls for a new translation into English. The main part of the treatise contains detailed descriptions of four marine mammals, but the introduction is devoted to more general issues, including innovative speculation on morphology, ecology and biogeography, anticipating arguments and concepts of modern biology. Steller noted early that climate and food have a direct influence on body size, pelage and functional traits of mammals, potentially affecting reversible changes (phenotypic plasticity). Feeding and other behavioural habits have an impact on the geographical distribution of mammals. Species with a broad diet tend to have a wide distribution, whereas animals with a narrow diet more likely have only a restricted range. According to Steller, both sea and land then still concealed countless animals unknown to science.

Assessment of Absorbed Irradiation Dose Rate 137Cs by Emerged Plants in Oligotrophic and Eutrophic Water Bodies

2019 ◽  
Vol 55 (5) ◽  
pp. 100-106
Author(s):  
Ye. N. Volkova ◽  
V. V. Belyayev ◽  
S. P. Prishlyak ◽  
A. A. Parkhomenko
Keyword(s):  
Dose Rate ◽  
Irradiation Dose ◽  
Water Bodies ◽  
Eutrophic Water ◽  
Irradiation Dose Rate
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