ELODEA (Elodea Canadensis)

Total Page：16

File Type：pdf, Size：1020Kb

ELODEA Oneida Lake Status: (Elodea canadensis) Common • Common and native to Oneida Lake • Can live rooted or free-floating • Creates important habitat for fish and animals Elodea is native to Oneida Lake, and is commonly found throughout North America as an aquarium plant. It lives entirely underwater with the exception of its small white or Elodea growing in the water pale purple flowers. These flowers are attached to the plant by delicate stalks, and bloom at the water’s surface. Elodea’s bright green leaves form in whorls (circular arrangements) around the stem, with three or occasionally four leaves per whorl. Female plants produce egg-shaped capsules about ¼ inch long that contain several seeds. Seeds will ripen underwater and are tapered, round, and narrowly cylindrical. Elodea grows best in silty sediments, but is found rooted in a Leaves grow in whorls variety of sediment types. It likes lakes with nutrient rich water, and will grow everywhere from very shallow to deep water. After being uprooted, Elodea can even survive as floating fragments. In the fall, leafy stalks will detach from the parent plant, float away, root, and start new plants. This is Elodea’s most important method of Tip of the Elodea spreading, with seed production Diagram of Elodea showing playing a relatively minor role. plant and flower parts Elodea is common in Oneida Lake. It provides good habitat Prepared by: for aquatic invertebrates, fish, and amphibians, and it is a major food source for ducks, geese, beaver and muskrat. Alexander Sonneborn Historically, Elodea was even used as a medicinal drug by Cornell Biological Field Station the Iroquois. Edited June 2013 .

Copy Link

Recommended publications

Elodea Genus: Egeria Or Elodea Family: Hydrocharitaceae Order: Hydrocharitales Class: Liliopsida Phylum: Magnoliophyta Kingdom: Plantae
Elodea Genus: Egeria or Elodea Family: Hydrocharitaceae Order: Hydrocharitales Class: Liliopsida Phylum: Magnoliophyta Kingdom: Plantae Conditions for Customer Ownership We hold permits allowing us to transport these organisms. To access permit conditions, click here. Never purchase living specimens without having a disposition strategy in place. The USDA does not require any special permits to ship and/or receive Elodea except in Puerto Rico, where shipment of aquatic plants is prohibited. However, in order to continue to protect our environment, you must house your Elodea in an aquarium. Under no circumstances should you release your Elodea into the wild. Primary Hazard Considerations Always wash your hands thoroughly before and after you handle your Elodea, or anything it has touched. Availability Elodea is available year round. Elodea should arrive with a green color, it should not be yellow or “slimy.” • Elodea canadensis—Usually bright green with three leaves that form whorls around the stem. The whorls compact as they get closer to the tip. Found completely submerged. Is generally a thinner species of Elodea. Has a degree of seasonality May–June. • Egeria densa—Usually bright green with small strap-shaped leaves with fine saw teeth. 3–6 leaves form whorls around the stem and compact as they get closer to the tip. Usually can grow to be a foot or two long. Is thicker and bushier than E. canadensis. Elodea arrives in a sealed plastic bag. Upon arrival, this should be opened and Elodea should be kept moist, or it should be placed in a habitat. For short term storage (1–2 weeks), Elodea should be placed in its bag into the refriger- ator (4 °C).
[Show full text]
Population Genetic Structure and Phylogeography of Invasive Aquatic Weed, Elodea Canadensis (Hydrocharitaceae) and Comparative Analyses with E
Population genetic structure and phylogeography of invasive aquatic weed, Elodea canadensis (Hydrocharitaceae) and comparative analyses with E. nuttallii Tea Huotari Department of Agricultural Sciences Faculty of Agriculture and Forestry University of Helsinki Finland academic dissertation To be presented, with the permission of the Faculty of Agriculture and Forestry of the University of Helsinki, for public criticism in Auditorium 1041, Biocenter 2 (Viikinkaari 5, Helsinki), on October 5th, 2012, at 12 noon. helsinki 2012 Supervised by: Dr Helena Korpelainen Department of Agricultural Sciences University of Helsinki, Finland Dr Elina Leskinen Department of Environmental Sciences University of Helsinki, Finland Reviewed by: Dr Jouni Aspi Department of Biology University of Oulu, Finland Dr Alain Vanderpoorten Department of Life Sciences University of Liége, Belgium Examined by: Prof. Katri Kärkkäinen The Finnish Forest Research Institute Oulu, Finland Custos: Prof. Teemu Teeri Department of Agricultural Sciences University of Helsinki, Finland © Wiley (Chapter I) © Springer (Chapter II) © Elsevier (Chapter III) © Authors (Chapter IV) © Hanne Huotari (Layout) isbn 978-952-10-8258-0 (paperback) isbn 978-952-10-8259-7 (pdf) Yliopistopaino Helsinki, Finland 2012 Äidille List of original publications this thesis is based on the following publications and a manuscript, which are referred to in the text by their Roman numerals: I Huotari, T., Korpelainen, H. and Kostamo, K. 2010. Development of microsatellite markers for the clonal water weed Elodea canadensis (Hydrocharitaceae) using inter-simple sequence repeat (ISSR) primers. – Molecular Ecology Resources 10: 576–579. II Huotari, T., Korpelainen, H., Leskinen, E. and Kostamo, K. 2011. Population genetics of invasive water weed Elodea canadensis in Finnish waterways.
[Show full text]
Comparative Efficacy of Diquat for Control of Two Members of The
J. Aquat. Plant Manage. 43: 103-105 Comparative Efficacy of Diquat for Control of Two Members of the Hydrocharitaceae: Elodea and Hydrilla LEE ANN M. GLOMSKI1, JOHN G. SKOGERBOE2, AND KURT D. GETSINGER3 INTRODUCTION in controlling submersed plants in areas influenced by water exchange, this study was designed to evaluate the efficacy of The submersed plants hydrilla (Hydrilla verticillata (L.f.) diquat on hydrilla and elodea under various CET scenarios. Royle) and elodea (Elodea canadensis Rich.) are both mem- bers of the Hydrocharitaceae family and cause problems in MATERIALS AND METHODS waterways throughout the world. Hydrilla is a serious nui- sance weed in the southeast, and parts of the mid-Atlantic This experiment was conducted in a greenhouse facility at and western U.S. Although elodea is native to the U.S. in the U.S. Army Engineer Research and Development Center’s northern and western states, it can grow to nuisance levels in Lewisville Aquatic Ecosystem Research Facility (LAERF) locat- irrigation canals, swimming areas, and boat marinas. Elodea ed in Lewisville, TX in March 2003. Sediment was collected has also invaded many European waterways (Sculthorpe from LAERF ponds, amended with 3 g L-1 ammonium sulfate 1967) and is considered to be an invasive weed in areas of Af- and placed into 1 L plastic pots to serve as plant growth me- rica, Asia, Australia and New Zealand (Bowmer et al. 1995). dia. Three healthy 6-inch apical tips were planted into each α Diquat (6,7-dihydrodipyrido[1,2- :2’,1’-c]pyrazinediium pot. Two pots of each species were placed into 50 L glass dibromide) is a contact herbicide used to control nuisance aquariums, which were filled with alum-treated water supplied submersed and floating aquatic macrophytes.
[Show full text]
Common Waterweed, Elodea Canadensis
Report this plant! Stop the spread of Aquatic Invasive Species! If you think you have seen this plant, take a sample, photograph, and note location. Common Contact: Alaska Department of Fish & Game Waterweed , Osceola County 1-877-INVASIV (468-2748) or NY State DEC USFWS Elodea canadensis Fairbanks CWMA Follow these simple guidelines: 479-1213, [email protected] Identification: Remove all visible mud, plants, fish/animals from equipment • Leaves in whorls of 3 (occasionally 4) • Stem lighter green than leaves Eliminate water from all equipment before An invasive plant threat • transporting Stems grow in tangled mass Much of the recreational equipment we use have places where water can collect and harbor hitchhikers to Alaskan waters Clean and dry anything that came in contact with water Use hot (140°F) or salt water If possible, allow 5 days of drying before entering new waters Do not release or put plants, fish, or animals into a body of water unless they came out of that water body. Aquarium plants and animals may be able to survive in our Alaskan waters! Dispose of aquariums responsibly For more specific prevention guidelines, visit: Don’t let this happen to Alaska! Fairbanks Cooperative Weed Management Area 590 University Ave, Suite 2 Leaves: Growth form is Fairbanks, AK 99709 1/4 –1/2’’ long variable Phone: (907) 479-1213 1/8’’ wide, edges Email: [email protected] finely toothed www.fairbankssoilwater.org/resources_CWMA Examples of potential impacts from aquatic invasive plants Impacts Are other waters at risk? Elodea canadensis could impact local waters in Elodea prefers cool, clear, slow waters with silty Elodea in Alaska several ways.
[Show full text]
(Egeria Densa Planch.) Invasion Reaches Southeast Europe
BioInvasions Records (2018) Volume 7, Issue 4: 381–389 DOI: https://doi.org/10.3391/bir.2018.7.4.05 © 2018 The Author(s). Journal compilation © 2018 REABIC This paper is published under terms of the Creative Commons Attribution License (Attribution 4.0 International - CC BY 4.0) Research Article The Brazilian elodea (Egeria densa Planch.) invasion reaches Southeast Europe Anja Rimac1, Igor Stanković2, Antun Alegro1,*, Sanja Gottstein3, Nikola Koletić1, Nina Vuković1, Vedran Šegota1 and Antonija Žižić-Nakić2 1Division of Botany, Department of Biology, Faculty of Science, University of Zagreb, Marulićev trg 20/II, 10000 Zagreb, Croatia 2Hrvatske vode, Central Water Management Laboratory, Ulica grada Vukovara 220, 10000 Zagreb, Croatia 3Division of Zoology, Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia Author e-mails: [email protected] (AR), [email protected] (IS), [email protected] (AA), [email protected] (SG), [email protected] (VŠ), [email protected] (NK), [email protected] (AZ) *Corresponding author Received: 12 April 2018 / Accepted: 1 August 2018 / Published online: 15 October 2018 Handling editor: Carla Lambertini Abstract Egeria densa is a South American aquatic plant species considered highly invasive outside of its original range, especially in temperate and warm climates and artificially heated waters in colder regions. We report the first occurrence and the spread of E. densa in Southeast Europe, along with physicochemical and phytosociological characteristics of its habitats. Flowering male populations were observed and monitored in limnocrene springs and rivers in the Mediterranean part of Croatia from 2013 to 2017.
[Show full text]
The Herbivorous Insect Fauna of a Submersed Weed, Hydrilla Verticillata (Alismatales: Hydrocharitaceae)
SESSION 5 Weeds of Aquatic Systems and Wetlands Proceedings of the X International Symposium on Biological Control of Weeds 307 4-14 July 1999, Montana State University, Bozeman, Montana, USA Neal R. Spencer [ed.]. pp. 307-313 (2000) The Herbivorous Insect Fauna of a Submersed Weed, Hydrilla verticillata (Alismatales: Hydrocharitaceae) C. A. BENNETT1 and G. R. BUCKINGHAM2 1 Department of Entomology and Nematology, University of Florida, and 2 USDA-ARS 1,2 Florida Biological Control Laboratory, P.O. Box 147100, Gainesville, Florida 32614-7100, USA Abstract Although relatively few insects have been reported to feed on submersed aquatic plants, field surveys on Hydrilla verticillata (L. F.) Royle for biological control agents have demonstrated that insect herbivores should be expected when surveying submersed aquatic plants in the native ranges. Beetles, or Coleoptera, especially the weevils (Curculionidae), are important herbivores. Weevils attack submersed plant species both when water is present and when water is absent during dry periods which leave the plants exposed. Pupal success appears to be the major determinant of weevil life cycle strategies. Donaciine leaf beetles (Chrysomelidae) attack the roots or crowns of submersed species, but their feeding and damage is difficult to determine. Leaf-mining Hydrellia flies (Diptera: Ephydridae) are diverse and common on submersed species. Other flies, the midges (Chironomidae), are also common on submersed species, but many utilize the plants only for shelter. However, midge larvae ate the apical meristems on the tips of hydrilla stems. Aquatic caterpillars (Lepidoptera: Pyralidae) are the herbivores most eas- ily observed on submersed species because of their large size and conspicuous damage, but their host ranges might be too broad for use as biological control agents.
[Show full text]
Brazilian Elodea Egeria Densa
Brazilian Elodea Egeria densa seagrant.psu.edu Photo courtesy of Richard Old, XID Services, Inc., Bugwood.org Species at a Glance Brazilian elodea, also known as Brazilian waterweed, is a leafy, submerged aquatic perennial with populations of only male plants in the United States. Because of its showy flowers and oxygen generating capabilities, it is widely used as an aquarium plant and is still sold today under its alias Anacharis. Species Description Brazilian elodea can reach lengths of greater than 3 m (10 ft) and survive either rooted or free-floating in up to 6 m (20 ft) of water. The leaves are bright to dark green, blade-shaped, with very fine teeth on the leaf margins that are only visible with magnification. Leaves are densely arranged in whorls of 4-6, although occasionally they can be found in whorls of three. Flowers are large and showy with three white Map courtesy of petals, a yellow center, and three green sepals. They emerge above or at the water’s United States Geological Survey. surface on slender stalks projecting from leaf axils near the stem tips. BRAZILIAN ELODEA Native & Introduced Ranges Egeria densa Native to Brazil and coastal regions of Argentina and Uruguay, Brazilian elodea is found to be invasive throughout the United States and at least 27 other countries. The earliest record in the United States was in 1893 when the plant was collected on Long Island, New York. In Pennsylvania, it can be found in the southeast region in Berks, Bucks, Montgomery, Delaware, and Philadelphia counties as well as in Allegheny and Bedford counties.
[Show full text]
Elodea Nuttallii and Elodea Callitrichoides
NOBANIS – Invasive Alien Species Fact Sheet Elodea canadensis, Elodea nuttallii and Elodea callitrichoides Author of this fact sheet: Melanie Josefsson, Department of Natural Resources, Swedish Environmental Protection Agency, SE106 48 Stockholm, Sweden, Telephone +46 10 698 1541, [email protected] Bibliographical reference – how to cite this fact sheet: Josefsson, M. (2011): NOBANIS - Invasive Species Fact Sheet – Elodea canadensis, Elodea nuttallii and Elodea callitrichoides – From: Online Database of the European Network on Invasive Alien Species – NOBANIS www.nobanis.org, Date of access x/x/201x. Species description Scientific name: Elodea canadensis Michx., Hydrocharitaceae Synonyms: Elodea canadensis: Elodea brandegeae St. John, Elodea latifolia Caspa, Elodea ioensis Wylie, Anacharis canadensis Scientific name: Elodea nuttallii Planch. St. John, Hydrocharitaceae Synonyms: Anacharis occidentalis (Pursh) St. John, Anacharis nuttallii Planchon, Elodea columbiana, Elodea minor Farw., Anacharis occidentalis (Pursh) Marie-Victorin, Serpicula occidentalis Pursh, Elodea canadensis var. angustifolia (Britton ex Rydb.) Farw. Scientific name: Elodea callitrichoides (Rich.) Casp, Hydrocharitaceae Synonyms: Elodea ernstiae H. St John Common names Elodea canadensis: Canadian waterweed (GB), Kanadische Wasserpest (DE), almindelig vandpest (DK), Kanada vesikatk (EE), (Kanadan) vesirutto (FI), Kanadine elodeja (LT), Kanādas elodeja (LV), Brede Waterpest (NL), Moczarka kanadyjska (PL), элодея канадская (RU), Vattenpest (SE), Vasspest (NO) Elodea nuttallii: Nuttall’s waterweed (GB), Schmalblättrige Wasserpest; Nuttalls Wasserpest (DE), smalbladet vandpest (DK), Kiehkuravesirutto (FI), Nutalla elodeja (LV), Smalle Waterpest (NL), Smal vattenpest (SE), Smal vasspest (NO) Elodea callitrichoides: Greater water-thyme (GB), South American waterweed (US), Argentinische Wasserpest (DE), Argentinsk vattenpest (SE) 1 Fig. 1. 2. 3 and 4. Elodea canadensis, photo by Paul Evald Hansen. Fig. 5 and 6. Elodea nuttallii, photo by Paul Evald Hansen.
[Show full text]
Canadian Waterweed Elodea Canadensis Michx
Canadian waterweed Elodea canadensis Michx. Synonyms: Anacharis canadensis (Michx.) Planch., A. canadensis var. planchonii (Caspary) Victorin, Elodea brandegeeae St. John, E. ioensis Wylie, E. linearis (Rydb.) St. John, E. planchonii Caspary, Philotria canadensis (Michx.) Britt., P. linearis Rydb. Other common names: American elodea, American waterweed, anacharis, bassweed, broad waterweed, Canada waterweed, Canadian pondweed, Canadian water pest, common waterweed, ditch moss, elodea, oxygen weed, water- thyme, waterweed Family: Hydrocharitaceae Invasiveness Rank: 79 The invasiveness rank is calculated based on a species’ ecological impacts, biological attributes, distribution, and response to control measures. The ranks are scaled from 0 to 100, with 0 representing a plant that poses no threat to native ecosystems and 100 representing a plant that poses a major threat to native ecosystems. Note on taxonomy: Canadian waterweed has been known to forms fertile hybrids with Nuttall’s waterweed (Elodea nuttallii) in natural environments (Cook and Urmi-Konig 1985). Laboratory crosses also yield fertile hybrids with viable seed (Ernst-Schwarzenbach 1945). Hybrids between these two species exhibit morphologically intermediate vegetative characteristics and are only distinguishable by their floral structures. Both species share geographic range and are native to most of temperate North America. Description Canadian waterweed is a perennial, freshwater, aquatic plant with submerged leaves and fibrous roots. Stems are branched at the nodes, slender, leafless near the base, and usually 20 to 100 cm long. Leaves are usually arranged in whorls of three but are occasionally opposite on the lower stem. Whorls are up to 2 cm apart on the lower stem but become crowded towards the upper stem.
[Show full text]
BRAZILIAN ELODEA (Egeria Densa) Description: Brazilian Elodea Is A
BRAZILIAN ELODEA (Egeria densa) Description: Brazilian elodea is a member of the Hydrocharitaceae or waterweed family. Brazilian elodea is an aquatic perennial herb that can grow in depths of water up to 20 feet. Stems of the plant are slender, round, simple to frequently branched, and 10 to 16 feet in length. Once stems reach the surface of the water they form a thick mat. Leaves are arranged in whorls of 4 around the stem, but whorls of 3 to 8 are not uncommon. Leaves are oblong to linear, finely serrated, and less than 1 inch in length. Lower leaves are opposite, while upper leaves are crowded and in whorls. Stems and leaves are bright green in color. Flowers, produced on threadlike stalks that float on or rise above the water’s surface, are three-petaled and white in color. Seeds are spindle-shaped and 1/3 of an inch long. Plant Images: Brazilian elodea Leaf whorl Flower Leaves on stem Distribution and Habitat: Brazilian elodea is native to southeastern South America and has been spreading rapidly to many bodies of water throughout the United States. The plant can be found in still or flowing cool to warm fresh bodies of water. The plant prefers shallow waters that are enriched, somewhat acidic, and quiet or slow-moving. Ponds, lakes, reservoirs, ditches, pools, springs, and rivers are areas where Brazilian elodea can thrive once established. Life History/Ecology: Brazilian elodea is a submersed, freshwater aquatic perennial herb that reproduces through vegetative growth. Plants have specialized nodal regions or double nodes that occur at intervals of 6 to 12 nodes along a shoot.
[Show full text]
Environmental Assessment
Anchorage Lakes Elodea Eradication Project: Environmental Assessment Public Review Draft Alaska Department of Natural Resources Division of Agriculture May 2015 Plant Materials Center 5310 S. Bodenburg Spur Palmer, Alaska 99645 Table of Contents Title Page 1.0 Introduction…………………………………………………………………………………………………………………………1 1.1 Need for Action and Project Goals……………………………………………………………………………1 1.2 Background: Elodea in Alaska…………………………………………………………………………………..1 1.2.1 Elodea Impacts………………………………………………………………………………………..3 1.3 Legal Authorities………………………………………………………………………………………………………3 1.4 Proposed Action…….………………………………………………………………………………………………..4 1.5 Location of Project……………………………………………………………………………………………………4 1.5.1 Elodea Survey Results and Lake Characteristics……………………………………….5 2.0 Alternatives………………………………………………………………………………………………………………………….7 2.1 Alternative 1: No Eradication or Control of Elodea……………………………………………………7 2.2 Alternative 2: Mechanical Removal…………………………………………………………………………..7 2.3 Alternative 3: Benthic Barriers………………………………………………………………………………….7 2.4 Alternative 4: Drawdown………………………………………………………………………………………….7 2.5 Alternative 5: Fluridone Treatment (Proposed Action)…….……………………………………….8 2.5.1 Description of fluridone…………………………………………………………………………..8 2.5.2 Description of proposed fluridone treatment………………………………………..10 3.0 Affected Environment………………………………………………………………………………………………………..12 3.1 Physical Environment……………………………………………………………………………………………..12 3.1.1 Land Resources…………………………………………………………………………………..…12 3.1.2 Water Resources…………………………………………………………………………………..12
[Show full text]
Acta Botanica 2-2014.Indd
Acta Bot. Croat. 73 (2), 437–446, 2014 CODEN: ABCRA 25 ISSN 0365-0588 eISSN 1847-8476 DOI: 10.2478/botcro-2014-0011 Distribution and morphological variations of invasive macrophytes Elodea nuttallii (Planch.) H. St. John and Elodea canadensis Michx in Croatia ALEKSANDRA KOČIĆ1, JANJA HORVATIĆ1, SVEN D. JELASKA2 1 Josip Juraj Strossmayer University of Osijek, Department of Biology, Cara Hadrijana 8A, HR-31000 Osijek, Croatia 2 University of Zagreb, Faculty of Science, Division of Biology, Marulićev trg 20/2, HR-10000 Zagreb, Croatia Abstract – The invasive species Elodea nuttallii was recorded for the fi rst time in the Croatian fl ora in 2006, in the drainage channels of Kopački rit (Baranja). After its estab- lishment, E. nuttallii begins to spread to the eastern and northern part of the drainage chan- nel network from 2006–2009. High water levels are responsible for the linear spreading direction of E. nuttallii, E. nuttallii and E. canadensis show a wide range of morphological variation, which is characteristic of successful invaders. To show morphological variations of two Elodea species, the most impor tant characters indicated in the literature were mea- sured on 24 fresh collected samples from the seven sites in Croatia. In spite of some over- lap in leaf length and width between the two Elodea species, the differences of all mor- phological traits except internode length are statistically signifi cant. In E. nuttallii leaf width, length and internode length show a higher morphological variability as a result of the higher adaptive strategy to environmental parameters. The most reliable morphologi- cal characters distinguishing E.
[Show full text]