DOCSLIB.ORG

Red Names=Invasive Species Green Names=Native Species

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
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. Dense stands can massive natural die-offs can dra- stem. Feathery in appearance, and musky odor when crushed be- occur forming mats at the waters surface. matically lower oxygen levels trig- each leaf consists of 10-21 pairs of closely packed leaflets. Out tween the fingers. The gritty texture gering fish kills. of the water the leaves become limp, compressing against the is caused by calcium deposits on the stem. Hybridization with native milfoil species is common. surface of the stems and branches. HYDRILLA STARRY STONEWORT COONTAIL CLASPING LEAF POND- (Hydrilla verticillata) (Nitellopsis Obtusa) (Ceratophyllum demersum) WEED This extremely invasive submersed This plant-like algae is very similar Supporting waterfowl, fish, and (Potamogeton richardsonii) plant contains oppositely arranged in appearance to Chara. Unfortu- insects, Coontail can be a Appearing extremely leafy at the leaves with whorls of 3 to 8 leaves. nately it is highly invasive not only desirable aquatic plant. tip due to frequent branching, The leaf has distinctive toothed outcompeting native submerged However, thick growths around Clasping leaf can be easily con- margins, with pointed spines on plants but exotic species also. It shore can be problematic. fused with Curly-leaf Pondweed. the underside mid-rib. It is easily also destroys crucial fish spawning Lacking true roots, it commonly Both bear wavy, submerged confused with native elodea, habitat. It has uneven branches floats near the surface later in leaves, however Curly-leaf Pond- which has 3 leaves per whorl and that look angular at each joint. summer. Stiff leaves are weed’s leaves are serrated along lacking evident toothed leaf mar- Branches feel smooth with a green whorled around a hollow stem the edges. Clasping leaf has gins. This plant reproduces gelatin appearance. A cream col- in groups of five to twelve. leaves with smooth edges and a through turion formation and frag- ored bulb can be found at the Coontail can be differentiated wide base that wraps around the mentation. In 2006 Hydrilla was base of each cluster of branches. This species can be found from milfoils by forked, not stem almost completely. Photo courtesy of Michael J.Grodowitz, confirmed in the Midwest. U.S. Army Engineer Research and Development Center growing in shallow and slow moving deep waters. feathery leaves. Leaf spacing is highly variable, but the ends are often bushy, like a raccoons tail. COMMON REED PURPLE LOOSESTRIFE LONG-LEAF PONDWEED LARGE-LEAF POND- (Phragmites australis) (Lythrum salicaria) (Potamogeton nodosus) WEED This emergent exotic An established invasive species. Floating leaves are oval and the (Potamogeton amplifolius) plant grows extremely tall Outcompeting many wetland base tapers to a distinct petiole. Thick, large stems and broad leaves aid in identification of (15 ft.), outcompeting species and altering habitat. The submersed leaves of this native wetlands plants Plants form dense stands Large-leaf pondweed. The plant are often lance-like, and and altering hydrology reaching heights of six feet. submerged leaves appear and blocking sunlight to Leaves are alternate and oppo- also taper to a long petiole. This wavy and taper toward the aquatic shoreline species. sitely attached directly to the plant generally has sparse leafing stem. Floating leaves are Phragmites is a perennial stem with a heart shaped base. that is arranged alternately. egg shaped. Rarely is this grass that has broad pointed flat leaves (6-24 in. long) (1-6 cm The flowers are magenta with pondweed found branching. wide), which arise from a very thick stalk. The plant flowers in five to seven petals. Flowers July thru October with dense, fluffy, gray or purple appear- usually appear in July and con- ance. Native species also exist. tinue to bloom thru October. RED NAMES=INVASIVE SPECIES GREEN NAMES=NATIVE SPECIES BLADDERWORT BULRUSH ELODEA DUCKWEED (Utricularia spp.) (Scirpus spp.) (Elodea canadensis) (Lemnaceae spp.) This plant is free floating and This plant has a long, tall triangular or round stem that This submersed weed with broad Duckweeds are members of does not utilize a standard may or may not contain leaves. This plant has a cluster oval leaves at first glance appears the family containing the root system. There are finely of brownish flowers and seeds located at the end of very similar to Hydrilla, however world’s smallest flowering divided leaves scattered along the stem. This plant will generally be found along the this plant usually contains its plants. They are generally a the stem with many small shoreline or in shallow waters. leaves in whorls of 3 around the very small floating green plant, structures that look like blad- stem. Whorls are compact near usually smaller than your small- ders attached to the leaves. the growth tip with spacing be- est fingernail. Often mistaken These bladders act as traps to tween the whorls gradually in- for algae, this plant floats on capture small aquatic inverte- creasing as you go down the the surface of the water and brates. Due to this plant not stem. This plant has leaves that reproduces very rapidly. This being rooted, floating plants have smooth edges and lack the plant may or may not have a may re-infest treated areas. spine on the underside of the leaf ‘root’ extending from the un- that Hydrilla has. derside, but the plant is not rooted to the soil. NORTHERN WATERMILFOIL WILD CELERY ARROWHEAD WATERMEAL (Myriophyllum sibiricum) (Vallisneria americana) (Sagittaria spp.) (Wolffia spp.) This native species of milfoil has a hollow stem with whorled Also known commonly as Eelgrass This plant is named for its This plant is extremely small, no larger then a pin head. It leaves at intervals along the entire length of the plant. Leaves or Tapegrass, this submersed arrow shaped leaf. This shows no visible roots and looks like green cornmeal or grits. are finely dissected to the mid-rib and featherlike in appear- plant can form thick beds and emergent plant may also The smallest of the flower- ance. This entire plant dominate an area. The grass like have some elliptical emer- ing plants, it is usually very is submerged with the leaves have a distinctive pattern gent leaves and sometimes abundant when present. exception of a tiny stalk used to identify the plant. Flac- will also have ribbon, or It is also often mistaken of flowers that may cid when out of the water, the tongue-like submersed for seeds floating on the extend above the water foliage occurs in tufts, much like leaves. This plant has un- surface. This species is surface. This plant can turf grass. Soft muck bottoms are derground rootstocks with generally very difficult to easily be confused with its preferred substrate. tubers and may at times control, and often coexists and hybridize with inva- have tiny white flowers with duckweed. sive Eurasian watermil- present. foil. SLENDER NAIAD SOUTHERN NAIAD WATER LILY WATERSHIELD (Najas flexilis) (Najas guadalupensis) (Nymphaea spp.) (Brasenia schreberi) Leaves of the Slender Naiad may Closely resembling Large round pad with a cleft running almost to mid-vein. Also known commonly as Dollar Bonnet. This plants occur in pseudo-whorls or oppo- Slender Naiads, Leaves are usually 6-8 inches in diameter and the leaf veins leaves are oval to elliptical with a smooth edge. The stem sitely positioned pairs (whorls Southern Naiads tend radiate outward from the petiole. The underside of the leaf is (petiole) is attached to the middle of the leaf. Leaves are 2-5 tend to occur at the end of the to be leafier with red- a purplish red color and inches in length. Mature stems). The ribbon like leaves dish brown stems. the flower is white with plants will have a slimy, are submersed with variable Leaves appear spiny many rows of petals. gelatinous coating on spacing between nodes. The along the margins. This plant has a thick, the leaf underside. edges may or may not appear Sheaths at the base fleshy rhizome network This plant produces a spiny and the leaf tips taper to leaves surround the buried in the mud. dull purple flower in late a fine point. Naiads are annual stem and may summer, grows from plants, growing from seed each conceal seeds.
Load more

Recommended publications
  • Bioone? RESEARCH
    RESEARCH BioOne? EVOLVED Proximate Nutrient Analyses of Four Species of Submerged Aquatic Vegetation Consumed by Florida Manatee (Trichechus manatus latirostris) Compared to Romaine Lettuce (Lactuca sativa var. longifolia) Author(s): Jessica L. Siegal-Willott, D.V.M., Dipl. A.C.Z.M., Kendal Harr, D.V.M., M.S., Dipl. A.C.V.P., Lee-Ann C. Hayek, Ph.D., Karen C. Scott, Ph.D., Trevor Gerlach, B.S., Paul Sirois, M.S., Mike Renter, B.S., David W. Crewz, M.S., and Richard C. Hill, M.A., Vet.M.B., Ph.D., M.R.C.V.S. Source: Journal of Zoo and Wildlife Medicine, 41(4):594-602. 2010. Published By: American Association of Zoo Veterinarians DOI: 10.1638/2009-0118.1 URL: http://www.bioone.org/doi/full/10.1638/2009-0118.1 BioOne (www.bioone.org) is an electronic aggregator of bioscience research content, and the online home to over 160 journals and books published by not-for-profit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne's Terms of Use, available at www.bioone.org/page/terms of use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research.
    [Show full text]
  • Nova Scotia Provincial Status Report Spotted Pondweed
    Nova Scotia Provincial Status Report on Spotted Pondweed (Potamogeton pulcher Tuckerm.) prepared for Nova Scotia Species at Risk Working Group by David Mazerolle and Sean Blaney Atlantic Canada Conservation Data Centre P.O. Box 6416, Sackville, NB E4L 1C6 DRAFT Funding provided by Nova Scotia Department of Natural Resources Submitted December 2010 EXECUTIVE SUMMARY i TABLE OF CONTENTS EXECUTIVE SUMMARY ..................................................................................................i WILDLIFE SPECIES DESCRIPTION AND SIGNIFICANCE...........................................1 Name and Classification............................................................................................1 Morphological Description ........................................................................................2 Field identification......................................................................................................3 Designatable Units .....................................................................................................4 Special Significance...................................................................................................5 DISTRIBUTION ...............................................................................................................7 Global Range ..............................................................................................................7 Canadian Range .........................................................................................................8
    [Show full text]
  • 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
    [Show full text]
  • An Updated Checklist of Aquatic Plants of Myanmar and Thailand
    Biodiversity Data Journal 2: e1019 doi: 10.3897/BDJ.2.e1019 Taxonomic paper An updated checklist of aquatic plants of Myanmar and Thailand Yu Ito†, Anders S. Barfod‡ † University of Canterbury, Christchurch, New Zealand ‡ Aarhus University, Aarhus, Denmark Corresponding author: Yu Ito ([email protected]) Academic editor: Quentin Groom Received: 04 Nov 2013 | Accepted: 29 Dec 2013 | Published: 06 Jan 2014 Citation: Ito Y, Barfod A (2014) An updated checklist of aquatic plants of Myanmar and Thailand. Biodiversity Data Journal 2: e1019. doi: 10.3897/BDJ.2.e1019 Abstract The flora of Tropical Asia is among the richest in the world, yet the actual diversity is estimated to be much higher than previously reported. Myanmar and Thailand are adjacent countries that together occupy more than the half the area of continental Tropical Asia. This geographic area is diverse ecologically, ranging from cool-temperate to tropical climates, and includes from coast, rainforests and high mountain elevations. An updated checklist of aquatic plants, which includes 78 species in 44 genera from 24 families, are presented based on floristic works. This number includes seven species, that have never been listed in the previous floras and checklists. The species (excluding non-indigenous taxa) were categorized by five geographic groups with the exception of to reflect the rich diversity of the countries' floras. Keywords Aquatic plants, flora, Myanmar, Thailand © Ito Y, Barfod A. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
    [Show full text]
  • 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
    [Show full text]
  • Rice-Fields. the Relevance of Cyanobacteria in the Ecosystem
    Limnetica 23(1-2) 11/10/04 10:15 Página 95 95 A shallow water ecosystem: rice-fields. The relevance of cyanobacteria in the ecosystem. Eduardo Fernández-Valiente* and Antonio Quesada Departamento de Biología. Universidad Autónoma de Madrid, E-28049 Madrid, Spain * Corresponding author, tel: 34-914978186, fax: 34-914978344, email: [email protected] ABSTRACT In this paper we review the knowledge of the ecology of the largest freshwater ecosystem on Earth: the rice-fields, and in particular the rice-fields from Valencia (Spain) making a special consideration to the cyanobacteria present in this ecosystem. Rice-fields are artificial shallow aquatic ecosystems in which the land management and the agricultural practices together with the rice plant growth govern the major environmental variables affecting the aquatic biota and its relationships. Primary producers are dominated typically by macrophytic algae as Chara and cyanobacteria, both planktonic and benthic (beside the rice plants). Most rice-fields can be considered nutrient replete, since the fertilization inputs and the low ratio volume/surface make that main nutrients are typically available. Under these circumstances other environmental variables as photosynthetically active radiation availability or filtration rates and predation may explain the growth limitation of primary producers. Irradiance availability identify two periods within the cultivation cycle: when plants are short, irradiance is not limiting and some water chemistry variables (as pH, oxygen and dissolved inorganic C concentrations) change drastically as a function of the primary production; when plants are large and the canopy is intense, then irradiance is limiting and the water chemistry changes only slightly along the day.
    [Show full text]
  • Vascular Plants of Williamson County Potamogeton Nodosus − LONGLEAF PONDWEED [Potamogetonaceae]
    Vascular Plants of Williamson County Potamogeton nodosus − LONGLEAF PONDWEED [Potamogetonaceae] Potamogeton nodosus Poiret, LONGLEAF PONDWEED. Aquatic perennial herb, clonal, rhizomatous, fibrous-rooted, not rosetted, mostly submersed with floating leaves; shoots with only cauline leaves with long petioles and stems and rhizomes with long internodes, glabrous; rhizomes cylindric, internodes to 190 × 3 mm, white; adventitious roots nodal, slender. Stems: ± cylindric, to 210 × 3 mm, white to green lacking purple spots; with elongate air canals in “cortex” (aerenchyma). Leaves: alternate distichous, simple, petiolate, with stipules; stipule 1, attached across node, V-folded along midvein, 35−65 mm long, translucent with many parallel veins; of submersed leaf petiole ± hemicylindric with rounded edges, 40−105 mm long, with aerenchyma, blade linear-oblanceolate to narrowly elliptic to narrowly oblanceolate, 18−53 × 6−9 mm, long-tapered at base, entire, blunt acute at tip lacking fine point at tip, midrib giving rise to 8 ascending, parallel lateral veins, midrib slightly raised on both surfaces; of floating leaf petiole ± hemicylindric with rounded edges, 20−210 mm long, with aerenchyma, blade elliptic, 28−95 × 20−37 mm, tapered at base, entire, broadly acute to obtuse or rounded at tip, midrib giving rise to 20 ascending, parallel lateral veins with veins slightly raised on lower surface, upper surface flat, water repellent, and many stomates, lower surface wettable and lacking stomates. Inflorescence: spike, axillary, emergent at anthesis,
    [Show full text]
  • Download the Full Report Pdf, 2.9 MB
    VKM Report 2016:50 Assessment of the risks to Norwegian biodiversity from the import and keeping of aquarium and garden pond plants Opinion of the Panel on Alien Organisms and Trade in Endangered Species (CITES) of the Norwegian Scientific Committee for Food Safety Report from the Norwegian Scientific Committee for Food Safety (VKM) 2016:50 Assessment of the risks to Norwegian biodiversity from the import and keeping of aquarium and garden pond plants Opinion of the Panel on Alien Organisms and Trade in Endangered Species (CITES) of the Norwegian Scientific Committee for Food Safety 01.11.2016 ISBN: 00000-00000 Norwegian Scientific Committee for Food Safety (VKM) Po 4404 Nydalen N – 0403 Oslo Norway Phone: +47 21 62 28 00 Email: [email protected] www.vkm.no www.english.vkm.no Suggested citation: VKM (2016). Assessment of the risks to Norwegian biodiversity from the import and keeping of aquarium and garden pond plants. Scientific Opinion on the on Alien Organisms and Trade in Endangered species of the Norwegian Scientific Committee for Food Safety ISBN: 978-82-8259-240-6, Oslo, Norway. VKM Report 2016:50 Title: Assessment of the risks to Norwegian biodiversity from the import and keeping of aquarium and garden pond plants Authors preparing the draft opinion Hugo de Boer (chair), Maria G. Asmyhr (VKM staff), Hanne H. Grundt, Inga Kjersti Sjøtun, Hans K. Stenøien, Iris Stiers. Assessed and approved The opinion has been assessed and approved by Panel on Alien organisms and Trade in Endangered Species (CITES). Members of the panel are: Vigdis Vandvik (chair), Hugo de Boer, Jan Ove Gjershaug, Kjetil Hindar, Lawrence Kirkendall, Nina Elisabeth Nagy, Anders Nielsen, Eli K.
    [Show full text]
  • 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.
    [Show full text]
  • Diet of the Antillean Manatee
    CORE Metadata, citation and similar papers at core.ac.uk Provided by NSU Works Nova Southeastern University NSUWorks Theses and Dissertations HCNSO Student Work 1-1-2014 Diet of the Antillean Manatee (Trichechus manatus manatus) in Belize, Central America Aarin Conrad Allen Nova Southeastern University Oceanographic Center, [email protected] This document is a product of extensive research conducted at the Nova Southeastern University Halmos College of Natural Sciences and Oceanography. For more information on research and degree programs at the NSU Halmos College of Natural Sciences and Oceanography, please click here. Follow this and additional works at: http://nsuworks.nova.edu/occ_stuetd Part of the Marine Biology Commons Share Feedback About This Item NSUWorks Citation Aarin Conrad Allen. 2014. Diet of the Antillean Manatee (Trichechus manatus manatus) in Belize, Central America. Master's thesis. Nova Southeastern University. Retrieved from NSUWorks, Oceanographic Center. (9) http://nsuworks.nova.edu/occ_stuetd/9. This Thesis is brought to you by the HCNSO Student Work at NSUWorks. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of NSUWorks. For more information, please contact [email protected]. 1 NOVA SOUTHEASTERN UNIVERSITY OCEANOGRAPHIC CENTER Diet of the Antillean manatee (Trichechus manatus manatus) in Belize, Central America by Aarin Conrad Allen Submitted to the Faculty of Nova Southeastern University Oceanographic Center in partial fulfillment of the requirements for the degree of Master of Science with a specialty in: Marine Biology Nova Southeastern University 2014 2 Thesis of Aarin Conrad Allen Submitted in Partial Fulfillment of the Requirements for the Degree of Masters of Science: Marine Biology Nova Southeastern University Oceanographic Center April 2014 Approved: Thesis Committee Major Professor :______________________________ James D.
    [Show full text]
  • WETLAND PLANTS – Full Species List (English) RECORDING FORM
    WETLAND PLANTS – full species list (English) RECORDING FORM Surveyor Name(s) Pond name Date e.g. John Smith (if known) Square: 4 fig grid reference Pond: 8 fig grid ref e.g. SP1243 (see your map) e.g. SP 1235 4325 (see your map) METHOD: wetland plants (full species list) survey Survey a single Focal Pond in each 1km square Aim: To assess pond quality and conservation value using plants, by recording all wetland plant species present within the pond’s outer boundary. How: Identify the outer boundary of the pond. This is the ‘line’ marking the pond’s highest yearly water levels (usually in early spring). It will probably not be the current water level of the pond, but should be evident from the extent of wetland vegetation (for example a ring of rushes growing at the pond’s outer edge), or other clues such as water-line marks on tree trunks or stones. Within the outer boundary, search all the dry and shallow areas of the pond that are accessible. Survey deeper areas with a net or grapnel hook. Record wetland plants found by crossing through the names on this sheet. You don’t need to record terrestrial species. For each species record its approximate abundance as a percentage of the pond’s surface area. Where few plants are present, record as ‘<1%’. If you are not completely confident in your species identification put’?’ by the species name. If you are really unsure put ‘??’. After your survey please enter the results online: www.freshwaterhabitats.org.uk/projects/waternet/ Aquatic plants (submerged-leaved species) Stonewort, Bristly (Chara hispida) Bistort, Amphibious (Persicaria amphibia) Arrowhead (Sagittaria sagittifolia) Stonewort, Clustered (Tolypella glomerata) Crystalwort, Channelled (Riccia canaliculata) Arrowhead, Canadian (Sagittaria rigida) Stonewort, Common (Chara vulgaris) Crystalwort, Lizard (Riccia bifurca) Arrowhead, Narrow-leaved (Sagittaria subulata) Stonewort, Convergent (Chara connivens) Duckweed , non-native sp.
    [Show full text]
  • 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.
    [Show full text]