The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. Photosynthesis Research 71: 251-264. Occurs in: estuarine habitats, lakes. Aquatic macrophytes of the Upper San Marcos River, Hays Co., Tesas. 2014. Aquatic Plants of Oklahoma I: Submersed, Floating-leaved, and selected emergent macrophytes. Aquatic Botany 20(3-4):329-338. University of Alabama, Tuscaloosa, AL. Indiana University Southeast's Herbarium. Competition between Cabomba and Anacharis in Black Lake, Louisiana. Rhodora 34(403):151-152. In Cattail Chronicles Issues Affecting the Surface Waters of Lake County, Vol. As a result of its popularity in aquariums the plant has now spread to North America, Europe, Asia, Australia, New Zealand, and Africa.[10][11]. Aquatics 6(1):9-10. 2006. Succession of Egeria densa in a drinking water reservoir in Morbihan (France). Aquatic Botany 30: 389-403. University of Connecticut. Nonindigenous E. densa populations in Río Cruces, Chile have similar genotypes as populations in Western Oregon, suggesting that the two populations experienced similar bottlenecking events at introduction, or there is a lack of genetic diversity in the native population (Carter and Sytsma 2001). It can form dense stands that crowd out native vegetation and reduce the area's value as fish habitat. Vict.Elodea densa (Planch.) Accessed 11 August 2014. Stem fragments that break off can take root in bottom mud or grow as free-floating mats (Hoshovsky and Anderson 2001). Chicago Tribune: TribLocal/Winnetka, Northfield & Glencoe Community. 2013. Invasive Plant Atlas of the MidSouth. Nowadays, the plant has widely spread over Eurasia, North America and Oceania. Oregon Flora Project. The plant forms thick mats that obstruct boat passage, trap sediments, crowd out native vegetation, and impede the migration of fish. Hydrobiol. A revision of the genus Egeria (Hydrocharitaceae). Available at http://www.wetwebmedia.com/plantedtkssubwebindex/elodea.htm. New York Flora Atlas. Herbarium (UNA). Egeria densa cannot tolerate high UV-B radiation, as it can damage the enzymes involved in photosynthesis and can reduce photosynthetic capacity (Casati et al. Morgan, and J. Li, 2020, Center for Aquatic and Invasive Plants, University of Florida, US Fish and Wildlife Service Ecological Risk Screening Summary for. Annual Washington State Aquatic Plant Survey Database. 2007. New York and Oxford. Created on 04/03/2007. The list of references for all nonindigenous occurrences of Egeria densa are found here. Dalto, F.M. 1988. Its presence can have pronounced effects on the community composition of aquatic plants where it occurs. 107(4): 511-519. Beal, E.O., and J.W. 1977. Prepared for Indiana Department of Natural Resources. Center for Invasive Species and Ecosystem Health, University of Georgia. Accessed on 11/20/2015. Physiologia Plantarum 115 (94): 487-495. Hoshovsky, M.C., and L. Anderson. Species Overview. Available at http://health.lakecountyil.gov/Documents/CattailChronicles%20Spring09.pdf. 1980. Morris Arboretum at the University of Pennsylvania (MOAR), Philadelphia, PA. http://www.paflora.org. Accessed on 11/20/2015. Herbarium Specimen Voucher, Arizona State University (ASU) Vascular Plant Herbarium, Collections Database. The habitat is in Argentina, Brazil and Uruguay. 2013. Invasion of E. densa into the Hawkesbury-Nepean River, Australia. Created on 09/23/2008. Aquatic Plant Technical Assistance Program: 1995 Acitivity Report. 2001. Haynes, R.R. Marcondes, D. A. S., A. L. Mustafa, R. H. Tanaka, D. Martins, E. D. Velini, and R. A. Pitelli. CONN. University of Connecticut, Storrs, CT. http://www.gbif.org/dataset/5288946d-5fcf-4b53-8fd3-74f4cc6b53fc. Morgan, and J. Li. 2013. Inland Fisheries Division, Aquatic Habitat Enhancement, Jasper, Texas. Kingston, RI. The New York Botanical Garden, New York, NY. 2008. Egeria densa is not native to Florida.The exotic Egeria is also known as Brazilian elodea.However, Egeria is Egeria; not Elodea, which is another plant altogether.This submersed plant is rooted, but pieces of it may be found drifting in the water. INHS. Stevens, and D.M.E. Egeria densa prefers fresh water basins with lentic or slowly flowing water. It is easily propagated by cuttings. New invasive aquatic plant discovered in Minneapolis lake. Gibbons, J. Noxius weeds of Australia, 2nd Edition, pp. It can also interfere with recreational activities such as fishing and swimming. Dodd-Williams, L., G.O. iMapInvasives. Leaves are approximately one inch long and a quarter-inch wide. Parsons, W.T., and E.G. Impact Assessment - Dense waterweed (Egeria densa) in Victoria. Northeast Aquatic Plant Management Society. Induction of a C4-like mechanism of CO2 fixation in Egeria densa, a submersed aquatic species. [13], Egeria densa has escaped from cultivation and become naturalized and invasive in many warm temperate to subtropical regions of the world, including Europe, southern Africa, Asia, Australia, New Zealand, New Caledonia[14] and North America. Accessed [12/12/2020]. INHS Herbarium Database (www.inhs.uiuc.edu/cbd/main/collections/plants.html). Jones, C., J. Lawton, and M. Shachak. Presumably, prior to the intrusion by ege- 1993. Species group: Plants. Temperature is important to the growth of Egeria densa; however, its growth is mostly stable in temperatures ranging from 16–28 Â°C (61–82 Â°F), with an upper temperature limit of 32 Â°C (90 Â°F) that results in reduced shoot growth and photosynthetic output. 2002). Couch. University of Alabama Biodiversity and Systematics. Iowa State University Press, Ames, Iowa. Sanders, D.R., and M.O. They serve no economic purpose and possess characteristics that are harmful to humans, animals or the environment). Warnick, P. 2008. Created on 07/01/2015. http://ucjeps.berkeley.edu/interchange.html. Accessed on 02/03/2016. 2007. Submerged, bottom-rooted perennial plant in the oxygenweed group. Brazilian e. South American waterweed. Casati, P., M. Lara, and C. Andreo. 2001. 5(10): 528-532. Fenner, B. New Invaders Watch Program. Florida Museum of Natural History. Washington State Department of Agriculture (WSDA), Plant Protection Division. Oxford University Press, New York, New York. Contact us to report errors. Ware. Manage. Aquatic Plant Control Research Program,, US Army Engineer Research and Development Center. University of Kansas, Lawrence, KS. Herbarium Specimen Voucher Data, Florida State University (FSU), Herbarium. Accessed on 11/20/2015. Hamabata, E., and Y. Kobayashi. Arizona State University. http://www.gbif.org/dataset/84f9770e-f762-11e1-a439-00145eb45e9a. 2011. The ecology of Egeria densa Planchon (Liliopsida: Alismatales): a wetland ecosystem engineer? tive, egeria (Egeria densa) has recently spread to one of the state’s most vital and sensitive ecosystems. 1986. California State Parks. San Diego, CA. The New York Flora Atlas is a source of information for the distribution of plants within the state, as well as information on plant habitats, associated ecological communities, and taxonomy. Bossard, J.M. Indiana University Southeast, New Albany, IN. http://www.gbif.org/dataset/95b97882-f762-11e1-a439-00145eb45e9a. For almost 25 years since ... mal spawning habitat for salmon, bass and, importantly, the endan-gered native, Delta Smelt? Aquatic Control, Inc. 2008. 19, Issue 1. Montz, G.N. Mattioli, R.I. Carruthers, and L.W. Habitat description Pierini and Thomaz (2004) state that, "E. densa is primarily invasive in temperate environments." Anderson, L.C. Dillon. Florida State University, Tallahassee, FL. The status of undesirable aquatic weeds in Georgia during 1983. Landry, K.N. It grows well in the cooler aquarium and is suitable for the beginner. (curator). Invasive plant is big problem for lakes and ponds. Great Lakes Statistics. Available at http://files.dnr.state.mn.us/eco/invasives/fish_guide_final.pdf. Coffey, B.T. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Illinois Natural History Survey. [10] When herbicides were applied to the plant, the levels of phosphorus and nitrogen increased but not greatly, suggesting that most of the nutrients remained in the plant biomass and did not reabsorb into the water column.[20]. www.efloras.org. Smart, and C.S. Front. The best way is to remove the plant in entirety from the water column or use herbicides to kill the plant. E. densa has been included in the Global Invasive Species Database (GISD 2006). Map of South American waterweed (Egeria densa) distribution in Oregon. It is being provided to meet the need for timely best science. Thomaston, W.W. 1984. Central Michigan University Herbarium (CMC). http://herbarium.bio.fsu.edu/. Available at http://www.michigan.gov/documents/deq/wrd-ais-regulated-species_390473_7.pdf. Nonindigenous Aquatic Species Database. University of Washington. Egeria helps preventing algae because it absorbs a great number of nutrients from the water. Central Michigan University, Mt. http://www.gbif.org/dataset/5df38344-b821-49c2-8174-cf0f29f4df0d. Created on 12/15/2008. The leaves are produced in whorls of four to eight, 1–4 cm (0.39–1.57 in) long and 2–5 mm (0.079–0.197 in) broad, with a pointed leaf tip. EDDMapS: Early detection and distribution mapping system. Egeria densa cannot tolerate high light intensities or high levels of ultra-violet and blue light, as it experiences chlorophyll damage to light levels of 1250 lux. Oral Roberts University, Tulsa, OK. New Hampshire Department of Environmental Services. Anderson, J., D. Jensen, J. Gunderson, and M. Zhulkov. Pfingsten, I.A., D.D. Sago Notes - a publication of the Idaho Native Plant Society. 2002. Citation information: U.S. Geological Survey. Griffy Lake aquatic vegetation management plan update-draft: Monroe County, Indiana. 1989. http://www.oregonflora.org/atlas.php. It can form dense stands that crowd out native vegetation and reduce the area's value as fish habitat. [5][6][7][8], Egeria densa typically displays little variation in growth patterns throughout the year when grown in tropical environments; however, when grown in more moderate environments the plant spends most of its energy on starch production and storage in the winter and canopy growth during the summer season [9], Egeria densa is native to Argentina, Brazil, and Uruguay. Washington Department of Ecology . [S.M. Indiana Department of Natural Resources, Indianapolis, IN. 2012. University of Minnesota Sea Grant Program, Duluth, MN. 2000. Available at http://www.ci.minneapolis.mn.us/sustainability/indicators/WCMS1P-088402. Weldy, T., and D. Werier. Thieret. UA Herbarium. Missouri Botanical Garden, St. Louis, MO. Cohen, J. N. Mirotchnick, and B. Leung. http://tenn.bio.utk.edu/vascular/vascular.shtml. Aquatic Control, Inc. 2007. Accessed 13 August 2014. Studies for aquatic plant management in hydro electrical lakes in Brazil. Washington's aquatic plant quarantine. E. densa, like other macrophytes, are effective when used in wastewater treatment plants due to the same factors that make it a potential invasive plant; mainly its ability to uptake nutrients, and sedimentation of particles from the water column. Radford, A.E., H.E. Created on 09/08/2011. Ann Arbor, MI 48108-9719. [2] It is considered a problematic invasive species due to its use in home aquariums and subsequent release into non-native habitats. We highly recommend reviewing metadata files prior to interpreting these data. 2015. iMapInvasives New York. Accessed 12 August 2014. 2nd edition. Accessed on 07/08/2015. http://www.flmnh.ufl.edu/herbarium/. Egeria densa is a fast growing, non-native submerged aquatic plant having a significant impact on the shallow water habitat in the Sacramento-San Joaquin River Delta ecosystem. Egeria densa can tolerate high phosphorous levels, but is susceptible to iron deficiency (Parsons and Cuthbertson 2001). Distribution and habitat: Egeria densa is an ageless aquarium plant, a species of Egeria native to warm temperate South America in southeastern Brazil, Argentina, and Uruguay and become naturalized and invasive in many warm temperate to subtropical regions of the world, including Europe, southern Africa, Asia, Australia, New Zealand and North America. Biodiversity and Conservation 14: 1365-1381. SmartGuide to ponds, fountains, and waterfalls 2nd Edition, p. 98. Pickleweek Press, Santa Rosa, CA. 2011. 2010. http://news.dnr.state.mn.us/index.php/2007/09/26/new-invasive-aquatic-plant-discovered-in-minneapolis-lake/. DeGoosh, K. 2009. http://invasives.eeb.uconn.edu/ipane/. Rice, P.M. 2008. http://des.nh.gov/organization/divisions/water/wmb/exoticspecies/exotic_plant_map.htm. Missouri Botanical Garden. An atlas and annotated list of the vascular plants of Arkansas. Getsinger, K.D., and C.R. 2015. Owens. For queries involving invertebrates, contact Amy Benson. http://ct.gov/caes/cwp/view.asp?a=2799&q=376972&caesNav=|. Summaries of exterior quarantines. The species' ability to thrive in low light conditions and its ability to form a dense canopy makes it a very successful invader compared with other macrophytes, resulting in a reduction in the diversity of plant species where it is introduced. It is a weed in inland lakes and rivers, often shallow, mild … South American waterweed . http://atlas.nyflora.org/ (accessed 10 October 2008). Volume 1. Pennsylvania Flora Project. 2014. Central Michigan University. http://biology.burke.washington.edu/herbarium/collections/vascular/search.php. Federal Marketing Corp, Upper Saddle River, NJ. Smith, E.B. Egeria densa invades both still and flowing water ecosystems including lakes, ponds, ditches, and rivers. Egeria densa is an aquatic plant growing in water up to 4 m (13 ft) deep, with trailing stems to 2 m (6.6 ft) or more long, producing roots at intervals along the stem. Stems will grow until they reach the surface of th… The website also provides access to a database and images of plants photos and herbarium specimens found at … It reproduces asexually in Australia (Parsons and Cuthbertson 2001) and in the U.S. (Hoshovsky and Anderson 2001), where only the male plant has established. 2007. 1984. Oregon Department of Agriculture (ODA), Plant Division. Egeria densa (Brazilian Waterweed) appears to be rare and scattered in tidal tributaries of Chesapeake Bay, probably because this species grows slowly under turbid conditions (Barko and Smart 1981) . Arch. Campbell, and L.D. http://cmcherbarium.bio.cmich.edu/. Plant Physiology 123: 1611-1621. Egeria densa invades both still and flowing water ecosystems including lakes, ponds, ditches, and rivers. A field guide to fish invaders of the Great Lakes region. When washing ta… MacIsaac. 2015. State. Available at http://coastwatch.glerl.noaa.gov/webdata/cwops/html/statistic/statistic.html. Flora of North America North of Mexico. Abstract. Flora of North America North of Mexico, Vol. http://www.gbif.org/dataset/95c938a8-f762-11e1-a439-00145eb45e9a. The cosmopolitan Egeria densa is a good plant for beginners, and its rapid growth helps create a balance in the aquarium from the start. Creative Homeowner. Habitat description Elodea Canadensis has a wide range of conditions in which it can grow. Accessed on 03/16/2016. In New Zealand, it has also been observed to rapidly re-colonise de-vegetated waterways following floods. Molecular Biology. Southern Weed Science Society 26:361-366. http://herbarium.desu.edu/index.htm. Accessed on 11/20/2015. Pennsylvania Flora Database. Castanea 45(1):31-51. Names and dates are hyperlinked to their relevant specimen records. Accessed 11 August 2014. 2010. Vol I: Ferns and Fern Allies, Conifers, and Monocotyledons. Aquatic and Wetland Plants of Kentucky. http://www.gbif.org/dataset/4fa894f4-b6c6-4ec0-b816-9bb03b3ca106. New York Botanical Garden. 1977. 1994. E. densa is an aquatic plant, living submerged in fresh water, only its flowers being projected above the water surface. http://www.ecy.wa.gov/programs/eap/lakes/aquaticplants/index.html#annualsurvey. Parsons, J. Accessed 2 May 2013. Aquatic and marsh plants of Alabama. Consortium of California Herbaria. Roberts, D.E., A.G. Church, and S.P. Taylor, D.W. (curator). Available http://vro.dpi.vic.gov.au/dpi/vro/vrosite.nsf/pages/impact_dense_waterweed. Berry (eds). Egeria densa can inhabit waters with a wide range of temperatures, low CO2 levels, and low light levels. McGlynn, Cathy. This species may be transported by hitchhiking on recreational gear; E. densa grows in thick mats that can become entangled on boat propellers and trailer wheels, or can be captured in bilge water (Washington State Department of Ecology 2013). Available http://www.ecy.wa.gov/programs/wq/plants/weeds/aqua002.html. Elodea densa . Aguado, and J. Fernández. Ecology: Egeria densa is an aquatic plant in the waterweed family that inhabits mild to warm freshwaters, such as slow-flowing streams in warm, temperate, and tropical regions (Parsons and Cuthbertson 2001). 2009). Detecting a Spectrally Variable Subject in Color Infrared Imagery Using Data-Mining and Knowledge-Engine Methods. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. 2008. Biology and ecology of Brazilian elodea (Egeria densa) and its specific herbivore, Hydrellia sp., in Argentina. 2016. Breitler, A. In Invasive Plants of California’s Wildlands, C.C. Dutartre, A., J. Haury, and A. Jigorel. Derivation of specific name. [10] Colder temperatures will limit growth of the plant and can be used as a method of controlling its spread in non-native habitats. 2008. Geosystems Research Institute, Mississippi State University, Starkville, MS. http://www.gri.msstate.edu/ipams/. Water Column 18(3): 1-4. Helton, R.J., and L.H. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. Division of Fish and Wildlife, Department of Natural Resources and Environmental Control, Smyrna, DE. Invasive Plant Atlas of New England (IPANE) at the University of Connecticut online database. It can also interfere with recreational activities such as fishing and swimming. Thayer, V.H. 2009. 3-5 m long, up to 8 cm diameter (Cook and Urmi-König 1984). Bernice Pauahi Bishop Museum natual history data. Virginia Botanical Associates, Farmville, VA. Hauenstein, E., and C. Ramirez. 2014. Created on 03/10/2014. Point Intercept and Surface Observation GPS (SOG): A Comparison of SurveyMethods — Lake Gaston, NC/VA. Duggan, N.M.N. 2000. Comprehensive Description. Exotic Aquatic Plant Infestations in New Hampshire. In some areas when the plant gets into the natural bodies of water, it becomes an invasive plant species. University of Arizona, Tucson, AZ. Anacharis densa (Planch.) Cummins. Egeria densa exhibits the C4 pathway and utilizes HCO3-; thus it is able to photosynthesize in waters with low CO2 levels (Casati et al. Walsh, G.C., Y.M. Egeria densa. Illinois Natural History Survey. It can form dense stands that crowd out native vegetation and reduce the area's value as fish habitat. Atlas of Tennessee Vascular Plants - website based on 1993 and 1997 publications. Distribution of selected aquatic plant species in Louisiana. [10] Most of its impact occurs in the shallow waterways; the plant forms thick mats that obstruct boat passage, clog water intakes and aqueducts, trap sediments, crowd out native vegetation, and impede the migration of anadromous fish. 22. Washington State Dept of Ecology, Environmental Investigations and Laboratory Services Program, Olympia, WA. Smithsonian Institution, Washington, DC. Proposal for the biological control of Egeria densa in small reservoirs:  a Spanish case study. Aquatic Invasive Species: Brazilian Elodea. Castanea 66(3):303-306. Wet Web Media. Public Notice: DBW begins 2014 Egeria densa control program in Delta. 1999. Delaware State University, Dover, DE. Griffy Lake aquatic vegetation management plan update. Egeria produces flowers (male only), which are conspicuous during the summer months floating on the water surface. Anderson. Southwestern Naturalist 34(2):289-291. Accessed on 11/20/2015. 2007. Harvill, A.M., C.E. E. densa is a popular aquarium plant and is widely available in fish stores; its dark green coloring provides aquariums with a very lush appearance. 2005. Prohibited species in the Great Lakes region. Nor'Easter State Updates for Rhode Island. It can, however, also function as shelter for zooplankton and smaller invertebrates. Statewide Aquatic Vegetation Survey Summary, 1996 Report. Michigan State University. Herbarium specimen voucher data, Claude E. Phillips Herbarium (DOV). University of Florida, Gainesville, FL. Mandvikar, A., and H. Liu. Nelson, E.N., and R.W. Oregon Department of Agriculture (ODA), Plant Division. Optimal light intensity is about 100 lux. 2016. Regulation of enzymes involved in C4 photosynthesis and the antioxidant metabolism by UV-B radiation in Egeria densa, a submerged aquatic species. Accessed on 07/16/2015. Andreo. Egeria densa invades both still and flowing water ecosystems including lakes, ponds, ditches, and rivers. Early detection and rapid response network. The Connecticut Agricultural Extension Stattion Aquatic Plant Survey Program. It can also interfere with recreational activities such as fishing and swimming. As a result, these ecosystems have now become dominated by E. densa. Center for Invasive Species and Ecosystem Health. Mabe (original application development), Florida Center for Community Design and Research. http://nsdb.bishopmuseum.org/. Division of Biological Sciences, University of Montana, Missoula, MT 59812-4824. http://invader.dbs.umt.edu (accessed 28 April 2008). California State Parks, Division of Boating and Waterways. Bergeron, A. Ricciardi, and H.J. 2009. Allen. Haramoto, T. and I. Ikusima. R. L. McGregor Herbarium Vascular Plants Collection. 1984. References to specimens that were not obtained through sighting reports and personal communications are found through the hyperlink in the Table 1 caption or through the individual specimens linked in the collections tables. Midwest Invasive Species Information Network (MISIN). Egeria densa Planchon. Hartmann. Accessed 12 August 2014. Basic information: Scientific name: Egeria densa: Click to magnify. Minnesota Department of Natural Resources. 1980. 2013. [2020]. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. In Proceedings of the Fourth SIAM International Conference on Data Mining, M.W. Michigan State University, East Lansing, MI. Univ North Carolina Press, Chapel Hill. University and Jepson Herbaria, University of California, Berkeley. The plant currently infests 2,400 ha (5,900 acres), or 12% of the total surface area of the delta, along with other states and even as far north as Canada. www.nyimapinvasives.org. Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. Accessed 11 August 2014. 2015. 1985. University of Arkansas, Fayetteville, AR. Great Lakes Panel on Aquatic Nuisance Species. Minnesota Department of Natural Resources. Rixon, C.A.M., I.C. Annual Meeting of the Aquatic Plant Management Society. Available at http://www.dbw.parks.ca.gov/PressRoom/2014/140604EDCP.aspx. University of Arizona Herbarium. 2001. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information. Atlas of the Virginia flora, Part I. Pteridophytes through monocotyledons. Lara, M.V., P. Casati, and C.S. http://www.weedmapper.org/egde_state.html (accessed on 21 March 2008). BioControl 58(1): 133-147. The history, spread and present distribution of some immigrant aquatic weeds in New England. 1997. Aquatic Botany 19(1-2):73-96. 1988. Egeria densa Planch, (formerly called: Elodea densa (Planchon) Caspary), Brazilian elodea, anacharis, giant elodea: Family: Hydrocharitaceae: This non-native plant is commonly sold as an aquarium plant in most of the United States and in Canada, but it is illegal to sell in Washington. Aquatic Invasive Species. INVADERS Database System. Hydrobiologia 415: 243-247. Egeria densa invades both still and flowing water ecosystems including lakes, ponds, ditches, and rivers. Egeria densainvades both still and flowing water ecosystems including lakes, ponds, ditches, and rivers. For queries involving fish, please contact Matthew Neilson. Egeria densa is not known to be taken up in ballast water. Created on 09/10/2008. Death from the deep, September 2, 2006. 2010. Dick, R.M. 2013. University of Florida Herbarium. Casati, P., M. Lara, and C. Andreo. Organisms as ecosystem engineers. noobfishkeeper at How to grow Anacharis - Egeria densa in aquariums on 2019-09-19 08:50:54; Senator Wisdom at Bloodfin tetra (Aphyocharax alburnus) on 2019-08-01 17:36:25; CayceR at A page and forum devoted to keeping Blood parrot cichlids on 2019-06-24 18:13:14 Environ. Accessed 12 August 2014. Class-specific ensembles for active learning in digital imagery, p. 412-421. List of Aquatic Plants found in Delaware Ponds 1973-1995. Moran Colorgraphic Printing, Baton Rouge, LA. CSIRO Publishing, Collingwood VIC, Australia. Cook, C.D.K., and K. Urmi-König. http://www.gbif.org/dataset/d415c253-4d61-4459-9d25-4015b9084fb0. Ecology: Egeria densa is an aquatic plant in the waterweed family that … [19] One of the potential solutions to the problem are water drawdowns, as the plant is very sensitive to drying out and the plant can die in as short as an hour when removed from water. Mangrum. Victorian Department of Industries. It can also interfere with recreational activities such as fishing and swimming. Randall, and M.C. [15][16], Though it is sometimes debated, E. densa is referred to as an ecosystem engineer as a result of the impact it has on a habitat once it is introduced. Recently, E. densa was reported as naturalized alien species in Iceland where it invaded the naturally heated water bodies. Egeria densa, Elodea nuttallii, Lagarosiphon major More. Brazilian elodea (Egeria densa) in the University of Idaho Arboretum upper pond. 1932. Accessed 11 August 2014. 2007. NOAA/Great Lakes Environmental Research Laboratory. 2014. Indiana Department of Natural Resources. Countryman, W.D. https://www.ius.edu/herbarium/. Present status of submerged macrophyte growth in Lake Biwa: Recent recovery following a summer decline in the water level. Brazilian-waterweed, probably one of the most widely-cultivated aquarium plants, has for this reason become a widespread invasive species of lakes and rivers. 2008. Quiescence, growth and senescence of Egeria densa in Lake Marion. Bell. iMapInvasives. Shanks. Weatherby, C.A. It is dioecious, with male an… J. Aquat. Anacharis densa on Long Island. Flora of North America Editorial Committee. Egeria densa, the large-flowered waterweed[1] or Brazilian waterweed, is a species of Egeria native to warm temperate South America in southeastern Brazil, Argentina, and Uruguay. Long, up to 8 cm diameter ( Cook and Urmi-König 1984 ) states, years, and 2nd! Herbarium ( DOV ) Lake Marion detecting a Spectrally Variable Subject in Color Infrared Imagery Using Data-Mining Knowledge-Engine! 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Gunderson, and selected emergent.... This has practical limitations and sensitive ecosystems plant in the United states it occurs from York. The University of Minnesota Sea Grant Program,, US Army engineer Research and Development Center herbivore, Hydrellia,... They serve no economic purpose and within stated limitations streams.\ '' some immigrant aquatic weeds Georgia... Influence of salinity on the water surface, MS. http: //www.gri.msstate.edu/ipams/ Conference on data,. And Boating levels, but is susceptible to iron deficiency ( Parsons and Cuthbertson )! And quiet streams. about the location of vouchered specimens and see images to get a better for! 2001 ) Brazilian Elodea ( Egeria densa, Elodea nuttallii, Lagarosiphon major More et al provisional is., a submersed aquatic species iron deficiency ( Parsons and Cuthbertson 2001 ) heated water bodies Lake Gaston NC/VA. Up to 8 cm diameter ( Cook and Urmi-König 1984 ) introduced annually: the pathway! 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