scholarly journals Utilization of Aquatic Plants Elodea canadensis and Hydrilla verticillata in Diets for Laying Hens.

1990 ◽  
Vol 69 (4) ◽  
pp. 673-678 ◽  
Author(s):  
L.R. McDOWELL ◽  
L.C. LIZAMA ◽  
J.E. MARION ◽  
C.J. WILCOX
Keyword(s):  
Aquatic Plants ◽  
Laying Hens ◽  
Hydrilla Verticillata ◽  
Elodea Canadensis

Influence of Simazine on Apparent Photosynthesis of Aquatic Plants and Herbicide Residue Removal from Water

Weed Science ◽  
1969 ◽  
Vol 17 (1) ◽  
pp. 56-59 ◽  
Author(s):  
David L. Sutton ◽  
D. A. Durham ◽  
S. W. Bingham ◽  
C. L. Foy
Keyword(s):  
Dissolved Oxygen ◽  
Treatment Period ◽  
Oxygen Evolution ◽  
Aquatic Plants ◽  
Lemna Minor ◽  
Elodea Canadensis ◽  
Residue Removal ◽  
Herbicide Residue ◽  
Nutrient Culture

Simazine (2-chloro-4,6-bis(ethylamino)-s-triazine) at 0.12 to 1.0 ppmw in nutrient cultures of common duckweed (Lemna minor L.), elodea (Elodea canadensis Michx.), and parrotfeather (Myriophyllum brasiliense Camb.) inhibited oxygen evolution within 24 hr. Of the plants studied, the submersed form of parrotfeather exhibited the greatest reduction in apparent photosynthesis as measured by dissolved oxygen in the water. Simazine in nutrient culture without plants remained relatively stable during the treatment period; a slight, but not significant, diminution of chemical was detected after 4 days. Each species, elodea or emersed parrotfeather, reduced the concentration of simazine in solution within 48 hr after treatment.

scholarly journals Arsenic, Zinc, and Aluminium Removal from Gold Mine Wastewater Effluents and Accumulation by Submerged Aquatic Plants (Cabomba piauhyensis,Egeria densa, andHydrilla verticillata)

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ahmad Farid Abu Bakar ◽  
Ismail Yusoff ◽  
Ng Tham Fatt ◽  
Faridah Othman ◽  
Muhammad Aqeel Ashraf
Keyword(s):  
Waste Water ◽  
Plant Species ◽  
Aquatic Plants ◽  
Mine Drainage ◽  
Plant Biomass ◽  
Mine Waste ◽  
Hydrilla Verticillata ◽  
The Other ◽  
Egeria Densa ◽  
Submerged Aquatic Plant

The potential of three submerged aquatic plant species (Cabomba piauhyensis, Egeria densa, andHydrilla verticillata) to be used for As, Al, and Zn phytoremediation was tested. The plants were exposed for 14 days under hydroponic conditions to mine waste water effluents in order to assess the suitability of the aquatic plants to remediate elevated multi-metals concentrations in mine waste water. The results show that theE. densaandH. verticillataare able to accumulate high amount of arsenic (95.2%) and zinc (93.7%) and resulted in a decrease of arsenic and zinc in the ambient water. On the other hand,C. piauhyensisshows remarkable aluminium accumulation in plant biomass (83.8%) compared to the other tested plants. The ability of these plants to accumulate the studied metals and survive throughout the experiment demonstrates the potential of these plants to remediate metal enriched water especially for mine drainage effluent. Among the three tested aquatic plants,H. verticillatawas found to be the most applicable (84.5%) and suitable plant species to phytoremediate elevated metals and metalloid in mine related waste water.

Studies of the hydrobiology of a tropical lake in north-western Queensland. III. Growth, chemical composition and potential for harvesting of the aquatic vegetation

1984 ◽  
Vol 35 (5) ◽  
pp. 525 ◽  
Author(s):  
CM Finlayson ◽  
TP Farrell ◽  
DJ Griffiths
Keyword(s):  
Aquatic Plants ◽  
Aquatic Vegetation ◽  
Hydrilla Verticillata ◽  
Limiting Factor ◽  
Potamogeton Crispus ◽  
Low Light ◽  
Mean Values ◽  
Nitrogen Concentrations ◽  
North Western ◽  
Nitrogen Phosphorus

The biomass of aquatic plant species and the standing crop of submerged species were estimated in Lake Moondarra from 1977 to 1979. In July 1978, the biomass of Salvinia molesta exceeded 53 000 t fresh weight, with a density of 167 t ha-1 (0.81 kg dry wt m-2). Hydrilla verticillata reached a maximum density of almost 3 kg dry wt m-2 and Potamogeton crispus more than double that density. Photosynthetic activity of a range of species was high, and was still detectable at water depths allowing only very low light penetration. Organic nitrogen concentrations were high (0.91-4.37% dry wt), and phosphorus (0.07-0.47% dry wt) appeared to be a limiting factor for growth of the aquatic plants. Heavy metal concentrations varied with species, location and season but, although generally higher than world-wide 'mean' values (48 �g g-1 copper, 11 �g g-1 lead, 14.3 �g g-1 zinc), were significantly less than those of aquatic macrophytes in heavily polluted environments. H. verticillata was more efficient than S. molesta in removal of nitrogen, phosphorus and zinc, whereas for copper and lead the reverse was true. The potential for using this property of the aquatic plants and subsequent harvesting in order to remove nutrients and metals from the lake is also discussed.

INFLUENCES OF AQUATIC PLANTS ON COLONIZATION OF ARTIFICIAL PONDS BY MOSQUITOES AND THEIR INSECT PREDATORS

1980 ◽  
Vol 112 (8) ◽  
pp. 793-796 ◽  
Author(s):  
Nello P. D. Angerilli ◽  
Bryan P. Beirne
Keyword(s):  
Aquatic Plants ◽  
Lemna Minor ◽  
Elodea Canadensis ◽  
Mosquito Larvae ◽  
Insect Predators ◽  
Artificial Ponds

AbstractThe aquatic plants Utricularia minor L., Lemna minor L., and Elodea canadensis Rich. in Michx. were tested for their effects on the colonization of artificial ponds by mosquitoes and their predators. During the 11 weeks of sampling there were significantly fewer mosquito eggs, and hence mosquito larvae, in the plant-filled ponds than in plantless control ponds, and more predators in the Utricularia and Elodea ponds than in the plantless and Lemna ponds.

scholarly journals ARE THE PLANTS OF THE FAMILY HYDROCHARITACEAE A NEW SOURCE OF TANNINS?

2018 ◽  
pp. 179-184
Author(s):  
Елена (Elena) Анатольевна (Аnatol'evna) Алехина (Alekhina) ◽  
Андрей (Аndrej) Николаевич (Nikolaevich) Ефремов (Efremov) ◽  
Ольга (Ol'ga) Александровна (Aleksandrovna) Емельянова (Emelyanova)
Keyword(s):  
Condensed Tannins ◽  
Statistical Processing ◽  
Hydrilla Verticillata ◽  
Urtica Dioica ◽  
Elodea Canadensis ◽  
Egeria Densa ◽  
The Family ◽  
Bidens Tripartita ◽  
Stratiotes Aloides ◽  
Leaf Tissues

The plants of the families Salicaceae, Fagaceae, Pinaceae are traditional sources of tannins. However, earlier in the leaf tissues of some marine (Enhalus, Thalassia) and freshwater (Stratiotes) genuses of the family Hydrocharitaceae, idioblasts containing condensed tannins were found. In this regard, the purpose of the study was to determine the content of tannins in the phytomass of plants of the family Hydrocharitaceae (Hydrocharis morsus-ranae, Hydrilla verticillata, Stratiotes aloides, Egeria densa, Elodea canadensis) and medicinal plants − traditional sources of tannins (Quercus robur, Urtica dioica, Bidens tripartita).As a result of the research hydrolyzed tannins has been found in Hydrocharis morsus-ranae, and a mixture of hydrolyzed and condensed tannins in Stratiotes aloides, Elodea canadensis, Egeria densa, Hydrilla verticillata. Stratiotes aloides (3.1±0.1% of dry matter) and Hydrilla verticillata (2.8±0.1%) are characterized by the greatest content of tannins, Elodea canadensis (1.1 ± 0.1%) characterized by the minimal content. The shelf life of the dried phytomass does not affect the content of tannins. Statistical processing of the results of determination of tannins in the phytomass Hydrocharis morsus-ranae, Stratiotes aloides and Elodea canadensis, performed in different years, showed their convergence.The results of these studies allow us to consider the plants of the family Hydrocharitaceae as a potential source of tannins, comparable to such official sources as Urtica dioica and Bidens tripartita.

Unusual polyamines in aquatic plants: the occurrence of homospermidine, norspermidine, thermospermine, norspermine, aminopropylhomospermidine, bis(aminopropyl)ethanediamine, and methylspermidine

1998 ◽  
Vol 76 (1) ◽  
pp. 130-133 ◽  
Author(s):  
Koei Hamana ◽  
Masaru Niitsu ◽  
Keijiro Samejima
Keyword(s):  
Key Words ◽  
Aquatic Plants ◽  
Aquatic Plant ◽  
Hydrilla Verticillata ◽  
First Report ◽  
Brasenia Schreberi ◽  
Water Chestnut ◽  
The Family

Four aquatic plants were tested for the occurrence of unusual polyamines. The leaves of the aquatic plants tested ubiquitously contained homospermidine in addition to usual polyamines such as diaminopropane, putrescine, cadaverine, spermidine, spermine, and agmatine. Brasenia schreberi and Nuphar japonicum belonging to the family Nymphaeaceae contained aminopropylhomospermidine. Norspermidine and norspermine were detected in the blackweed Hydrilla verticillata belonging to Hydrocharitaceae. Thermospermine was detected in Brasenia schreberi. A novel tetraamine, N,N'-bis(3-aminopropyl)-1,2-ethanediamine (NH2(CH2)3NH(CH2)2NH(CH2)3NH2), was discovered in the aquatic plant Nuphar japonicum. This is the first report of the occurrence of N4-methylspermidine (NH2(CH2)3N(CH3)(CH2)4NH2) in the water chestnut Trapa natas belonging to the family Hydrocaryaceae. Key words: aquatic plants, polyamine, bis(aminopropyl)ethandiamine, methylspermidine.

scholarly journals Aquatic plant community in porto primavera reservoir

2014 ◽  
Vol 32 (3) ◽  
pp. 467-473 ◽  
Author(s):  
R.L.C.M. Pitelli ◽  
R.A. Pitelli ◽  
C.J. Rodrigues ◽  
J.H.P. Dias
Keyword(s):  
Cluster Analysis ◽  
Aquatic Plants ◽  
Water Body ◽  
Eichhornia Crassipes ◽  
Aquatic Plant ◽  
Hydrilla Verticillata ◽  
The Other ◽  
Frequency Of Occurrence ◽  
Eichhornia Azurea ◽  
Large Populations

Aiming to identify the populations of aquatic plants present in the Porto Primavera reservoir and evaluate the behavior of Hydrilla verticillata colonization of this water body a survey was carried out in 2007. The data was based on presence or absence, only were assessed the presence or absence of the species and the data were subjected to cluster analysis to establish differences in distribution and occurrence of populations. The community of aquatic plants showed 24 species distributed in 16 botanical families. Cyperaceae and Pontederiaceae were the most representative in terms of species richness. The submerged macrophyte Hydrilla verticillata showed the highest frequency of occurrence in the water body, showing a different behavior from the other populations of the water body. Species like Eichhornia crassipes, Eichhornia azurea, Typha dominguensis and Oxycaryum cubense also showed different behavior in relation to other populations within the community, forming large populations in lagoons and backwater areas.

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