Search results
Results from the WOW.Com Content Network
Water hyacinth is a common fodder plant in the third world especially Africa though excessive use can be toxic. It is high in protein (nitrogen) and trace minerals and the goat feces are a good source of fertilizer as well. Water hyacinth is reported for its efficiency to remove about 60–80% nitrogen [123] and about 69% of potassium from ...
The anchored water hyacinth is a free-floating aquatic perennial plant. [2] It is known by various common names such as, water orchid, and floating water hyacinth. The water hyacinth could be identified by its distinct thick, waxy green leaves that has a rounded or elliptical shape.
Megamelus scutellaris, the water hyacinth planthopper, is a true bug native to South America. It is used as a biological control agent to manage and reduce the spread of the water hyacinth (Pontederia crassipes, formerly Eichhornia crassipes), an invasive aquatic plant native to South America that has invaded many freshwater systems globally.
Aquatic plants require special adaptations for prolonged inundation in water, and for floating at the water surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma , but floating leaves and finely dissected leaves are also common.
The effect is observed in small objects which are supported by the surface of a liquid. There are two types of such objects: objects which are sufficiently buoyant that they will always float on the surface (for example, Cheerios in milk), and objects which are heavy enough to sink when immersed, but not so heavy as to overcome the surface tension of the liquid (for example, steel pins on water).
Water hyacinths increased rapidly between 1992 and 1998, were greatly reduced by 2001, and have since resurged to a lesser degree. Management techniques include (hyacinth-eating) insect controls and manual beach cleanup efforts. [5] A water hyacinth infestation is seldom totally eradicated. Instead, it is a situation that must be continually ...
Most waterskins could hold between 18 and 27.5 L (5 and 7 US gallons; 4 and 6 imperial gallons) of water. [1] The disadvantage of waterskins is that people who have fetched water in the skin bottle and who have drunk water from the same have complained of the water taking on the bad taste of the goatskin. [4]
Idotea metallica is a remarkable surface-associated isopod, that can be found either floating upside down on the ocean's surface [1] or attached to floating debris or neuston (such as the bubble rafts of Janthina). It is commonly associated with flotsam, [60] and is capable of actively swimming from one floating object to another. This species ...