Hydrilla
Hydrilla is an marine freshwater flora. It is a plant that matures up to the surface in water of about 20 feet deep. This very common water flora can be found in all types of water: rivers, lakes, marshes, springs and the like. This water flora can thrive in water that is very shallow or up to 20 feet deep. This flora can grow in oligotrophic (low nutrient) to eutrophic (high nutrient) conditions in water.
The Hydrilla is suited to more mild climates as it will only tolerate temperatures between 20 C and 27 C. The Hydrilla has thick branches that open out upon getting to the surface, shaping mats. The Hydrilla can have submerged stems that reach up to 25 feet in length. mostly off-white or yellowish in color. | The roots or Rhizomes of the Hydrilla are frequently yellowish or off-white in color. }There are lots of ways a Hydrilla can multiply. When it is time to multiply the Hydrilla accomplishes this in one of four ways: fragmentation, seeds, tubers and turions (auxiliary buds).
The Hydrilla has many advantages when equated to other floras. It can grow in very low light with 1% sunlight. Hydrillas absorb a great deal of foods from the water leaving small for the native floras. Hydrillas are labeled as a noxious pest because of their fast growth rate that makes them a threat to other native plants. It is considered to be dangerous because it is almost unseen properly before it totally tops out a lake, pond, or a specific area. Hydrillas will often choke out native marine floras because they take up so much surface area absorbing the sunshine and foods.
Millions of dollars are spent each year on herbicides and harvesting devices in an attempt to keep this floras growth under control. Since it harms the flora around it, people can’t even fish around areas these grow. Slowed water flow and blocked up irrigation or flood control channels are as a result of Hydrilla over growth. Swimming, yachting and fishing can not be properly done in areas when Hydrilla has taken hold. When a lot of Hydrilla grows together, it can totally take down that areas water oxygen level.
The Elodea and Egeria are oftentimes mixed up with the Hydrilla. In the case of a Hydrilla, there is one or more teeth located at the bottom of the midrib. But for Elodea and Egeria, this is not present. Due to these teeth, we feel the harshness of these plants when we rub over from its base to the tip. Also, Egeria has larger blooms than the Hydrilla.
Macro and micro invertebrates feed on Hydrilla. Upon dying, these micro and macro organisms decompose and become food for other land and marine wildlife. When Hydrilla dies naturally, they are decayed by bacteria and fungi and the end result is “detritus” a food for numerous aquatic invertebrates. Many ducks consume Hydrilla turions and tubers, but it is not believed a fine wildlife feed.
