Coventry Lake – Hydrilla Management Program
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Red Names=Invasive Species Green Names=Native Species
CURLY-LEAF PONDWEED EURASIAN WATERMIL- FANWORT CHARA (Potamogeton crispus) FOIL (Cabomba caroliniana) (Chara spp.) This undesirable exotic, also known (Myriophyllum spicatum) This submerged exotic Chara is typically found growing in species is not common as Crisp Pondweed, bears a waxy An aggressive plant, this exotic clear, hard water. Lacking true but management tools are cuticle on its upper leaves making milfoil can grow nearly 10 feet stems and leaves, Chara is actually a limited. Very similar to them stiff and somewhat brittle. in length forming dense mats form of algae. It’s stems are hollow aquarium species. Leaves The leaves have been described as at the waters surface. Grow- with leaf-like structures in a whorled are divided into fine resembling lasagna noodles, but ing in muck, sand, or rock, it pattern. It may be found growing branches in a fan-like ap- upon close inspection a row of has become a nuisance plant with tiny, orange fruiting bodies on pearance, opposite struc- “teeth” can be seen to line the mar- in many lakes and ponds by the branches called akinetes. Thick ture, spanning 2 inches. gins. Growing in dense mats near quickly outcompeting native masses of Chara can form in some Floating leaves are small, the water’s surface, it outcompetes species. Identifying features areas. Often confused with Starry diamond shape with a native plants for sun and space very include a pattern of 4 leaves stonewort, Coontail or Milfoils, it emergent white/pinkish early in spring. By midsummer, whorled around a hollow can be identified by a gritty texture flower. -
Hydrilla Vs. New York
1 comicvine.com Hydrilla vs. New York UMISC October 16, 2018 2 Hydrilla in New York High priority species prohibited by Part 575 Now found at 32 locations throughout New York Often found near boat launches DeviantArt Waterfowl also considered a vector 3 Hydrilla in New York First discovered in 2008 2008 - Creamery Pond, Orange County 2008 – Sans Souci Lake, Lotus Lake, Suffolk County 2009 - Lake Ronkonkoma, Blydenburgh/New Mill Pond, Phillips Mill Pond, Suffolk County 2009 – Frost Mill Pond, Suffolk County 2011- Smith Pond, Great Patchoque Lake, Suffolk County; Cayuga Inlet, Tompkins County 2012 – several private ponds, Broome County 2012 – Cayuga Lake, Tompkins County; Tonawanda/Erie Canal, Niagara and Erie Counties 2013 – Croton River, Westchester County 2013 – Millers Pond, Suffolk County; Unnamed pond, Tioga County 2014 – New Croton Reservoir, Westchester County 2014 – Prospect Park, Brooklyn, Kings County 2015 – Tinker Nature Park pond, Monroe County 2016 – Aurora (Cayuga Lake), Tompkins County 2016 – Spencer Pond, Tioga County 2016 – Halsey Neck Road Pond, Suffolk County 2018 - Kuhlman Pond, Tioga County 2018 - Avon Pond, Frank Melville Pond, and East Setauket, Suffolk County 2018 – Allison Pond, Staten Island, Richmond County 4 Management Options in Place 1) No management 2) Benthic mats 3) Triploid Grass Carp 4) Herbicide 5) Combination (IPM) 5 Option: No management Suffolk County: • Lake Ronkonkoma (10 acres of 240 acres) • Sans Souci (southern 5 acres) • Lotus Lake (13 acres) • Blydenburgh/New Mill Pond (110 acres, coverage -
Introduction to Common Native & Invasive Freshwater Plants in Alaska
Introduction to Common Native & Potential Invasive Freshwater Plants in Alaska Cover photographs by (top to bottom, left to right): Tara Chestnut/Hannah E. Anderson, Jamie Fenneman, Vanessa Morgan, Dana Visalli, Jamie Fenneman, Lynda K. Moore and Denny Lassuy. Introduction to Common Native & Potential Invasive Freshwater Plants in Alaska This document is based on An Aquatic Plant Identification Manual for Washington’s Freshwater Plants, which was modified with permission from the Washington State Department of Ecology, by the Center for Lakes and Reservoirs at Portland State University for Alaska Department of Fish and Game US Fish & Wildlife Service - Coastal Program US Fish & Wildlife Service - Aquatic Invasive Species Program December 2009 TABLE OF CONTENTS TABLE OF CONTENTS Acknowledgments ............................................................................ x Introduction Overview ............................................................................. xvi How to Use This Manual .................................................... xvi Categories of Special Interest Imperiled, Rare and Uncommon Aquatic Species ..................... xx Indigenous Peoples Use of Aquatic Plants .............................. xxi Invasive Aquatic Plants Impacts ................................................................................. xxi Vectors ................................................................................. xxii Prevention Tips .................................................... xxii Early Detection and Reporting -
Potamogeton Hillii Morong Hill's Pondweed
Potamogeton hillii Morong Hill’sHill’s pondweed pondweed, Page 1 State Distribution Best Survey Period Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Status: State threatened 1980’s. The type locality for this species, in Manistee County, has been destroyed. Global and state rank: G3/S2 Recognition: The stem of this pondweed is slender Other common names: pondweed and much branched, reaching up to 1 m in length. The alternate leaves are all submersed, and very narrow Family: Potamogetonaceae (pondweed family) (0.6-2.5 mm), ranging from 2-6 cm in length. The leaves are characterized by having three parallel veins Synonyms: Potamogeton porteri Fern. and a short bristle tip. The stipules are relatively coarse and fibrous (shredding when old) and are free Taxonomy: An extensive molecular analysis of the from each other and the leaf stalk bases. Short Potamogetonaceae, which largely corroborates the (5‑15 cm), curved fruiting stalks (peduncles) are separation of broad-leaved versus narrow-leaved terminated by globose flower/fruit clusters that pondweed species, is provided by Lindqvist et al. arise from leaf axils or stem tips. The tiny (2-4 mm) (2006). fruits have ridges along the backside. Other narrow- leaved species that lack floating leaves have either Range: This aquatic plant is rare throughout much of narrower leaves ( less than 0.5 mm in width, such as its range, which extends from Vermont to Michigan, and P. confervoides and P. bicupulatus), stipules that are south to Pennsylvania. Centers of distribution appear attached near their bases (P. foliosus, P. pusillus), to be in western New England and the north central longer peduncles (1.5-4 mm) (P. -
Hydrilla Fact Sheet
HHEADINGEADING OFFOFF HHYDRILLAYDRILLA Another invasive species is heading towards the Great Lakes: Hydrilla verticillata onnative species are a great threat to the Great Because it is so invasive and pervasive, hydrilla Lakes region. So far, much focus has been greatly disrupts the ecological balance of all the areas Nplaced on sea lamprey, zebra mussels, alewife, where it grows. Large, dense hydrilla mats inhibit spiny water fleas, ruffe, goby, purple loosestrife and sunlight from penetrating the water and shade out native Eurasian watermilfoil. Soon, another species - Hydrilla plant species that live in the waters below them. Because verticillata – may join this list. hydrilla mats slow the movement of water, sediments Hydrilla is a robust aquatic plant that may survive build up where hydrilla thrives, decreasing the turbidity and thrive in waters of this area. As of December 2005, and creating good breeding grounds for mosquitoes. biologists have found no evidence of hydrilla in Michigan’s shallow Great Economic Impacts Lakes bays, 11,000 inland lakes or Hydrilla has serious economic thousands of miles of streams. effects resulting from the ecological However, the level of concern for impacts. As mentioned before, hydrilla ecological damage and economic harm can slow the movement of water, to Michigan’s water resources has disrupting the water supply, impeding increased due to the fact that hydrilla drainage and irrigation. This adds costs is now known to exist in two Great to the agricultural economy and also Lakes states, Pennsylvania and New negatively affects real estate values that York. are dependent upon attractive nearby waterways. Ecological Impacts Hydrilla also affects recreational Hydrilla has many adaptive qualities activities and the associated economy. -
2014 Hydrilla Integrated Management
Reviewed January 2017 Publishing Information The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is an Equal Opportunity Institution. UF/IFAS is committed to diversity of people, thought and opinion, to inclusiveness and to equal opportunity. The use of trade names in this publication is solely for the purpose of providing specific information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication do not signify our approval to the exclusion of other products of suitable composition. All chemicals should be used in accordance with directions on the manufacturer’s label. Use pesticides and herbicides safely. Read and follow directions on the manufacturer’s label. For questions about using pesticides, please contact your local county Extension office. Visit http://solutionsforyourlife.ufl.edu/map to find an office near you. Copyright 2014, The University of Florida Editors Jennifer L. Gillett-Kaufman (UF/IFAS) Verena-Ulrike Lietze (UF/IFAS) Emma N.I. Weeks (UF/IFAS) Contributing Authors Julie Baniszewski (UF/IFAS) Ted D. Center (USDA/ARS, retired) Byron R. Coon (Argosy University) James P. Cuda (UF/IFAS) Amy L. Giannotti (City of Winter Park) Judy L. Gillmore (UF/IFAS) Michael J. Grodowitz (U.S. Army Engineer Research and Development Center) Dale H. Habeck, deceased (UF/IFAS) Nathan E. Harms (U.S. Army Engineer Research and Development Center) Jeffrey E. Hill (UF/IFAS) Verena-Ulrike Lietze (UF/IFAS) Jennifer Russell (UF/IFAS) Emma N.I. Weeks (UF/IFAS) Marissa L. Williams (City of Maitland) External Reviewers Nancy L. Dunn (Florida LAKEWATCH volunteer) Stephen D. -
Hydrilla Verticillata Threatens South African Waters
Hydrilla verticillata threatens South African waters J.A. Coetzee1 and P.T. Madeira2 Summary South Africa’s inland water systems are currently under threat from hydrilla, Hydrilla verticillata L. Royle (Hydrocharitaceae), the worst submerged aquatic weed in the USA. The presence of the weed was confirmed for the first time in South Africa in February 2006, on Pongolapoort Dam in KwaZulu-Natal. An aerial survey revealed that the infestation on this dam covers approximately 600 ha, which is far greater than initially thought. Despite reports that it may be present in other water bodies, surveys have shown that it is restricted to Pongolapoort Dam. We conducted a boater survey which showed that there is significant potential for this devastating weed to spread beyond Pongo- lapoort Dam, and containment of hydrilla is of utmost priority. Research into the suitability of the already established biological control agents, Hydrellia pakistanae Deonier and H. balciunasi Bock (Diptera: Ephydridae), from the USA, as potential agents in South Africa, is also being conducted. However, the South African hydrilla biotype is different from the biotypes in the USA, and this needs to be borne in mind when considering which agents to release. Keywords: potential spread, management, genetic analysis. Introduction Current distribution of The confirmation of Hydrilla verticillata L. Royle hydrilla in South Africa (Hydrocharitaceae) (hydrilla) in South Africa from and potential for spread Pongolapoort Dam, KwaZulu-Natal province (KZN), in early 2006 (L. Henderson, personal communication, Hydrilla is one of the most problematic submerged 2006) prompted immediate action to contain and con- plants worldwide, invading both tropical and temperate trol this weed, and prevent further spread to other wa- regions because of its tolerance to a wide range of envi- ter bodies around South Africa. -
RAPID RESPONSE PLAN for HYDRILLA (Hydrilla Verticillata) in MASSACHUSETTS
RAPID RESPONSE PLAN FOR HYDRILLA (Hydrilla verticillata) IN MASSACHUSETTS Prepared for the Massachusetts Department of Conservation and Recreation 251 Causeway Street, Suite 700 Boston, MA 02114-2104 Prepared by ENSR 2 Technology Park Drive Westford, MA 01886 June 2005 RAPID RESPONSE PLAN FOR HYDRILLA (Hydrilla verticillata) IN MASSACHUSETTS Species Identification and Taxonomy ............................................................................................1 Species Origin and Geography .......................................................................................................2 Species Ecology................................................................................................................................3 Detection of Invasion.............................................................................................................3 Species Confirmation ............................................................................................................4 Quantifying the Extent of Invasion .......................................................................................5 Species Threat Evaluation ...............................................................................................................6 Communication and Education.............................................................................................8 Quarantine Options..............................................................................................................10 Early Eradication Options ...................................................................................................12 -
Bird Species Abundance and Their Correlationship with Microclimate and Habitat Variables at Natural Wetland Reserve, Peninsular Malaysia
Hindawi Publishing Corporation International Journal of Zoology Volume 2011, Article ID 758573, 17 pages doi:10.1155/2011/758573 Research Article Bird Species Abundance and Their Correlationship with Microclimate and Habitat Variables at Natural Wetland Reserve, Peninsular Malaysia Muhammad Nawaz Rajpar1 and Mohamed Zakaria2 1 Forest Education Division, Pakistan Forest Institute, Peshawar 25120, Pakistan 2 Faculty of Forestry, Universiti Putra Malaysia (UPM), Selangor, 43400 Serdang, Malaysia Correspondence should be addressed to Mohamed Zakaria, [email protected] Received 6 May 2011; Revised 29 August 2011; Accepted 5 September 2011 Academic Editor: Iain J. McGaw Copyright © 2011 M. N. Rajpar and M. Zakaria. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Birds are the most conspicuous and significant component of freshwater wetland ecosystem. Presence or absence of birds may indicate the ecological conditions of the wetland area. The objectives of this study were to determine bird species abundance and their relationship with microclimate and habitat variables. Distance sampling point count method was applied for determining species abundance and multiple regressions was used for finding relationship between bird species abundance, microclimate and habitat variables. Bird species were monitored during November, 2007 to January, 2009. A total of 8728 individual birds comprising 89 species and 38 families were detected. Marsh Swamp was swarmed by 84 species (69.8%) followed open water body by 55 species (17.7%) and lotus swamp by 57 species (12.6%). Purple swamphen Porphyrio porphyrio (9.1% of all detections) was the most abundant bird species of marsh swamp, lesser whistling duck—Dendrocygna javanica (2.3%) was dominant species of open water body and pink-necked green pigeon—Treron vernans (1.7%) was most common species of lotus swamp. -
The Genus Ruppia L. (Ruppiaceae) in the Mediterranean Region: an Overview
Aquatic Botany 124 (2015) 1–9 Contents lists available at ScienceDirect Aquatic Botany journal homepage: www.elsevier.com/locate/aquabot The genus Ruppia L. (Ruppiaceae) in the Mediterranean region: An overview Anna M. Mannino a,∗, M. Menéndez b, B. Obrador b, A. Sfriso c, L. Triest d a Department of Sciences and Biological Chemical and Pharmaceutical Technologies, Section of Botany and Plant Ecology, University of Palermo, Via Archirafi 38, 90123 Palermo, Italy b Department of Ecology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain c Department of Environmental Sciences, Informatics & Statistics, University Ca’ Foscari of Venice, Calle Larga S. Marta, 2137 Venice, Italy d Research Group ‘Plant Biology and Nature Management’, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium article info abstract Article history: This paper reviews the current knowledge on the diversity, distribution and ecology of the genus Rup- Received 23 December 2013 pia L. in the Mediterranean region. The genus Ruppia, a cosmopolitan aquatic plant complex, is generally Received in revised form 17 February 2015 restricted to shallow waters such as coastal lagoons and brackish habitats characterized by fine sediments Accepted 19 February 2015 and high salinity fluctuations. In these habitats Ruppia meadows play an important structural and func- Available online 26 February 2015 tional role. Molecular analyses revealed the presence of 16 haplotypes in the Mediterranean region, one corresponding to Ruppia maritima L., and the others to various morphological forms of Ruppia cirrhosa Keywords: (Petagna) Grande, all together referred to as the “R. cirrhosa s.l. complex”, which also includes Ruppia Aquatic angiosperms Ruppia drepanensis Tineo. -
Potamogeton Crispus L
Weed Risk Assessment for Michigan Department Potamogeton crispus L. of Agriculture and (Potamogetonaceae) – Curly leaf Rural Development pondweed May 10, 2016 Version 1 Top left: growth form (Leslie J. Mehrhoff, University of Connecticut, Bugwood.org), bottom left: P. crispus infestation (Chris Evans, University of Illinois, Bugwood.org), right: foliage close up with view of air bladders (Chris Evans, University of Illinois, Bugwood.org). Agency Contact : Cecilia Weibert Pesticide and Plant Pest Management Division Michigan Department of Agriculture and Rural Development P.O. Box 30017 Lansing, Michigan 48909 Telephone: 1-800-292-3939 Weed Risk Assessment for Potamogeton crispus Introduction The Michigan Department of Agriculture and Rural Development (MDARD) regulates aquatic species through a Prohibited and Restricted species list, under the authority of Michigan’s Natural Resources and Environmental Protection Act (NREPA), Act 451 of 1994, Part 413 (MCL 324.41301-41305). Prohibited species are defined as species which “(i) are not native or are genetically engineered, (ii) are not naturalized in this state or, if naturalized, are not widely distributed, and further, fulfill at least one of two requirements: (A) The organism has the potential to harm human health or to severely harm natural, agricultural, or silvicultural resources and (B) Effective management or control techniques for the organism are not available.” Restricted species are defined as species which “(i) are not native, and (ii) are naturalized in this state, and one or more of the following apply: (A) The organism has the potential to harm human health or to harm natural, agricultural, or silvicultural resources. (B) Effective management or control techniques for the organism are available.” Per a recently signed amendment to NREPA (MCL 324.41302), MDARD will be conducting reviews of all species on the lists to ensure that the lists are as accurate as possible. -
Curlyleaf Pondweed (Potamogeton Crispus L.) Angela Poovey FISH
Curlyleaf pondweed (Potamogeton crispus L.) Angela Poovey FISH 423 Fall 2008 1. Diagnostic information Basic identification key Class Liliopsida – Monocotyledons Curlyleaf pondweed (Potamogeton Subclass Alismatidae crispus L.) is a rooted submersed macrophyte that grows in freshwater lakes, ponds, rivers, and Order Najadales streams. It may be found in slightly brackish Family Potamogetonaceae – waters (Catling and Dobson 1985). It grows Pondweed family entirely underwater except for the flower stalk Genus Potamogeton – pondweed which rises above the water (WA-DOE 2001). Species crispus – curlyleaf Although most pondweeds exhibit plasticity, in pondweed which the appearance of the same species may vary depending on growing conditions, curlyleaf Common names pondweed is easily identified. It has olive-green curlyleaf pondweed, curly-leaved pondweed, to reddish-brown leaves (Figure 1). Leaves are curly pondweed, crisp pondweed, or curly attached to narrow slightly flattened stems in an muckweed alternate pattern. They are oblong (3-8 cm long, Figure 1. A stand of mature curlyleaf pondweed plants (left) and a plant stem (upper right). Note reddish-brown tinge with red midvein. Leaves have wavy edges and fine serrations (lower right). 5-12 mm wide) with margins that are distinctly Life-history and basic ecology wavy and finely serrated creating an overall leaf texture that is “crispy” (Borman et al. 1997). The cool water adaptations of curlyleaf Stems are branched and somewhat flattened; pondweed set it apart from other aquatic plants. they grow up to 90 cm (WA-DOE 2001). It survives as an entire plant under the ice Curlyleaf pondweed may be confused with (Wehrmeister and Stuckey 1992) while most Richardson’s pondweed (P.