Vallisneria


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Related to Vallisneria: Vallisneria spiralis

Vallisneria

 

a genus of perennial plants of the Hydrocharitaceae family. They are underwater grasses with large creeping roots and linear leaves. There are six species, distributed in the fresh waters of the tropical, subtropical, and temperate regions of both hemispheres. Best known is tape grass (V. spiralis), which grows in reservoirs at depths up to 1 m. In the USSR it is found in the mouths of the Dunai, Dnieper, and Volga and in lakes in the Caucasus, Middle Asia, and the Far East. The flowers of tape grass are diclinous and develop under water, but emerge on the surface for pollination. The pollinated flower again sinks into the water, where the fruit ripens. Tape grass serves as food for fish and waterfowl and is often planted in aquariums.

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Vallisneria americana is unique to the Dresden reach, and provides crucial food resources (i.e., seeds and winter buds) for waterfowl, especially canvasbacks (Aythya valisneria; Korschgen et al., 1988).
Energetic carrying capacity of riverine and connected wetlands of the upper Illinois River for fall-migrating waterfowl
Germination requirements of Vallisneria natans seeds: implications for restoration in chinese lakes.
Assessment of seed quality parameters and effect of physical and chemical treatments on seed germination of Myriophyllum Spicatum L./Avaliacao de parametros de qualidade de sementes e efeito de tratamentos fisicos e quimicos na germinacao de sementes de Myriophyllum spicatum L
pectinatus, Vallisneria spiralis, Typha angustata, and Zannichellia palustris.
Population Trend of the Black Coot (Fulica atra) in the Punjab, Pakistan During 1989 Through 2008
In order to avoid cannibalism during molting, pieces of PVC pipe (15 x 3 cm [conjunto vacio]), stones and macrophytes such as Vallisneria gigantea, Elodea densa, aquatic Cabomba types were used as aquarium ornaments, creating a refuge for the animals.
Influencia da ablacao do pedunculo ocular na reproducao do camarao de agua doce Macrobrachium acanthurus em cativeiro
A randomized block design transplant experiment conducted in five Adirondack lakes (Herkimer and Hamilton Counties, NY, USA) measured the relative growth rate (RGR) response of Myriophyllum tenellum, Lobelia dortmanna, Eriocaulon septangulare, Vallisneria americana, Elodea canadensis, and Potamogeton robbinsii to a dissolved inorganic carbon (D1C) gradient over the summer of 1999.
Botany & plant ecology
Effect of salinity on the growth of Vallisneria americana Michx.
A habitat suitability index model for the eastern oyster (Crassostrea virginica), a tool for restoration of the Caloosahatchee Estuary, Florida
Brasenia schreberi, Vallisneria americana, Chara braunii, Ricciocarpus natans, Ceratophyllum echinatum, and Zannichellia palustris were the rarest species, occurring at <5% of the survey sites, with the latter four species having been recorded from only a single site.
The history and aquatic flora of Silver Lake, Porter County, Indiana, with comments on the adequacy of floristic quality assessment for lakes
Hydrilla Hydrilla verticillata Eelgrasses Vallisneria spp.
Chapter 12 Wetlands
This category consisted primarily of saltmarsh cord grass (Spartina alterniflora), and smaller proportions of salt meadow-grass (Spartina patens), black needle-rush (Juncus roemerianus), salt grass (Distichlis spicata), bullrushes (Scirpus spp.), and cattails (Typha spp.); Submerged consisted primarily of shoalgrass aquatic (Halodule wrightii), wigeongrass vegetation (SAV) (Ruppia maritima), and a sporadic distribution of wild celery (Vallisneria americana); Shallow non- generally restricted to waters less vegetated than 1 meter deep, including creeks, bottom (SNB) ponds, shoreline, and open bay habitat.
A habitat-use model to determine essential fish habitat for juvenile brown shrimp (Farfantepenaeus aztecus) in Galveston Bay, Texas
Vallisneria and dwarf Sagittaria are also commonly used oxygenators.
Addressing pond water quality
and Vallisneria sp.) and their associated epiphytes.
Field observations of intraspecific agonistic behavior of two Crayfish species, Orconectes rusticus and Orconectes virilis, in different habitats
The purpose of this project was to evaluate plant nutrient uptake of the macronutrients, phosphorus, nitrogen, and potassium on the algae (Cladophora sp.) and the aquatic plants (Vallisneria sp.
How do different nutrients (phosphorus/nitrogen/potassium) at variable concentrations affect algae (Cladophora sp.), and the aquatic plants (Vallisneria sp. and Myriophyllum sp.), from the waters of Lake Erie? (Pre-College Poster Session 03:00 PM)

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