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Crepidula Fornicata
NOBANIS - Marine invasive species in Nordic waters - Fact Sheet Crepidula fornicata Author of this species fact sheet: Kathe R. Jensen, Zoological Museum, Natural History Museum of Denmark, Universiteteparken 15, 2100 København Ø, Denmark. Phone: +45 353-21083, E-mail: [email protected] Bibliographical reference – how to cite this fact sheet: Jensen, Kathe R. (2010): NOBANIS – Invasive Alien Species Fact Sheet – Crepidula fornicata – From: Identification key to marine invasive species in Nordic waters – NOBANIS www.nobanis.org, Date of access x/x/201x. Species description Species name Crepidula fornicata, Linnaeus, 1758 – Slipper limpet Synonyms Patella fornicata Linnaeus, 1758; Crepidula densata Conrad, 1871; Crepidula virginica Conrad, 1871; Crepidula maculata Rigacci, 1866; Crepidula mexicana Rigacci, 1866; Crepidula violacea Rigacci, 1866; Crepidula roseae Petuch, 1991; Crypta nautarum Mörch, 1877; Crepidula nautiloides auct. NON Lesson, 1834 (ISSG Database; Minchin, 2008). Common names Tøffelsnegl (DK, NO), Slipper limpet, American slipper limpet, Common slipper snail (UK, USA), Østerspest (NO), Ostronpest (SE), Amerikanische Pantoffelschnecke (DE), La crépidule (FR), Muiltje (NL), Seba (E). Identification Crepidula fornicata usually sit in stacks on a hard substrate, e.g., a shell of other molluscs, boulders or rocky outcroppings. Up to 13 animals have been reported in one stack, but usually 4-6 animals are seen in a stack. Individual shells are up to about 60 mm in length, cap-shaped, distinctly longer than wide. The “spire” is almost invisible, slightly skewed to the right posterior end of the shell. Shell height is highly variable. Inside the body whorl is a characteristic calcareous shell-plate (septum) behind which the visceral mass is protected. -
Global Diversity of Marine Isopods (Except Asellota and Crustacean Symbionts)
Collection Review Global Diversity of Marine Isopods (Except Asellota and Crustacean Symbionts) Gary C. B. Poore1*, Niel L. Bruce2,3 1 Museum Victoria, Melbourne, Victoria, Australia, 2 Museum of Tropical Queensland and School of Marine and Tropical Biology, James Cook University, Townsville, Queensland, Australia, 3 Department of Zoology, University of Johannesburg, Auckland Park, South Africa known from the supralittoral and intertidal to depths in excess of Abstract: The crustacean order Isopoda (excluding six kilometres. Isopods are a highly diverse group of crustaceans, Asellota, crustacean symbionts and freshwater taxa) with more than 10,300 species known to date, approximately comprise 3154 described marine species in 379 genera 6,250 of these being marine or estuarine. In the groups under in 37 families according to the WoRMS catalogue. The discussion here (about half the species) the vast majority of species history of taxonomic discovery over the last two centuries are known from depths of less than 1000 metres. is reviewed. Although a well defined order with the Peracarida, their relationship to other orders is not yet The Isopoda is one of the orders of peracarid crustaceans, that resolved but systematics of the major subordinal taxa is is, those that brood their young in a marsupium under the body. relatively well understood. Isopods range in size from less They are uniquely defined within Peracarida by the combination than 1 mm to Bathynomus giganteus at 365 mm long. of one pair of uropods attached to the pleotelson and pereopods of They inhabit all marine habitats down to 7280 m depth only one branch. Marine isopods are arguably the most but with few doubtful exceptions species have restricted morphologically diverse order of all the Crustacea. -
Coll Survey June 2003 Summary Report
Coll Survey kelp forest June 2003 3-bearded rockling Summary Report nudibranch Cuthona caerulea bloody Henry starfish and elegant anemones snake pipefish and sea cucumber diver and soft corals North-west Coast SS Nevada Sgeir Bousd Cairns of Coll Sites 22-28 were exposed, rocky offshore reefs reaching a seabed of The wreck of the SS Nevada (Site 14) lies with the upper Sites 15-17 were offshore rocky reefs, slightly less wave exposed but more Off the northern end of Coll, the clean, coarse sediments at around 30m. Eilean an Ime (Site 23) was parts against a steep rock slope at 8m, and lower part on current exposed than those further west. Rock slopes were covered with kelp Cairns (Sites 5-7) are swept by split by a narrow vertical gully from near the surface to 15m, providing a a mixed seabed at around 16m. The wreck still has some in shallow water, with dabberlocks Alaria esculenta in the sublittoral fringe at very strong currents on most spectacular swim-through. In shallow water there was dense cuvie kelp large pieces intact, providing homes for a variety of Site 17. A wide range of animals was found on rock slopes down to around states of the tide, with little slack forest, with patches of jewel and elegant anemones on vertical rock. animals and seaweeds. On the elevated parts of the 20m, including the rare seaslug Okenia aspersa, and the snake pipefish water. These were very scenic Below 15-20m rock and boulder slopes had a varied fauna of dense soft wreck, bushy bryozoans, soft corals, lightbulb seasquirts Entelurus aequorius. -
Author's Personal Copy
Author's personal copy 554 Book reviews Fifty Years of Invasion Ecology – The Legacy of Charles The 30 chapters are well written, and David Richardson Elton. D.M. Richardson (ed.). Wiley-Blackwell, Oxford did an excellent job in editing the diverse contributions of 51 (2011). 432 pp., £45 (paperback), £95 (hardcover), authors, most of them from North America, South Africa, and ISBN: 978-1-4443-3586-6 (paperback), 978-1-4443-3585- Australia. Asia and South America are not represented by any 9 (hardcover) contribution, and European researchers are underrepresented. Most chapters are relatively short, with an easily accessible This book is intended for all scientists and students inter- essay style. This comes at the expense of presentation of ested in biological invasions. It is based on a conference held original data, mirrored by rather few tables and figures. On in South Africa in 2008 to celebrate the 50th anniversary of the other hand, we applaud the possibility to download illus- the famous volume by Charles S. Elton on ‘The Ecology of trations from a companion website. The book is technically Invasions by Animals and Plants’. When a scientific disci- well done; virtually no typos could be spotted, and the over- pline starts exploring its history, defines terms and reviews lap among individual chapters is minimal. The terminology, achievements, this can be a sign of maturity, yet invasion for example on ‘alien’ and ‘non-indigenous’ species (chap- ecology continues to develop in a positive and dynamic way. ters 1 and 4), is not fully consistent, but this should not be The research dynamics in this field are enormous, building on taken too seriously. -
Endangered Species
FEATURE: ENDANGERED SPECIES Conservation Status of Imperiled North American Freshwater and Diadromous Fishes ABSTRACT: This is the third compilation of imperiled (i.e., endangered, threatened, vulnerable) plus extinct freshwater and diadromous fishes of North America prepared by the American Fisheries Society’s Endangered Species Committee. Since the last revision in 1989, imperilment of inland fishes has increased substantially. This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989. The increase reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa. Approximately 39% of described fish species of the continent are imperiled. There are 230 vulnerable, 190 threatened, and 280 endangered extant taxa, and 61 taxa presumed extinct or extirpated from nature. Of those that were imperiled in 1989, most (89%) are the same or worse in conservation status; only 6% have improved in status, and 5% were delisted for various reasons. Habitat degradation and nonindigenous species are the main threats to at-risk fishes, many of which are restricted to small ranges. Documenting the diversity and status of rare fishes is a critical step in identifying and implementing appropriate actions necessary for their protection and management. Howard L. Jelks, Frank McCormick, Stephen J. Walsh, Joseph S. Nelson, Noel M. Burkhead, Steven P. Platania, Salvador Contreras-Balderas, Brady A. Porter, Edmundo Díaz-Pardo, Claude B. Renaud, Dean A. Hendrickson, Juan Jacobo Schmitter-Soto, John Lyons, Eric B. Taylor, and Nicholas E. Mandrak, Melvin L. Warren, Jr. Jelks, Walsh, and Burkhead are research McCormick is a biologist with the biologists with the U.S. -
Traceability Study in Shark Products
Traceability study in shark products Dr Heiner Lehr (Photo: © Francisco Blaha, 2015) Report commissioned by the CITES Secretariat This publication was funded by the European Union, through the CITES capacity-building project on aquatic species Contents 1 Summary.................................................................................................................................. 7 1.1 Structure of the remaining document ............................................................................. 9 1.2 Acknowledgements ....................................................................................................... 10 2 The market chain ................................................................................................................... 11 2.1 Shark Products ............................................................................................................... 11 2.1.1 Shark fins ............................................................................................................... 12 2.1.2 Shark meat ............................................................................................................. 12 2.1.3 Shark liver oil ......................................................................................................... 13 2.1.4 Shark cartilage ....................................................................................................... 13 2.1.5 Shark skin .............................................................................................................. -
Bankia Setacea Class: Bivalvia, Heterodonta, Euheterodonta
Phylum: Mollusca Bankia setacea Class: Bivalvia, Heterodonta, Euheterodonta Order: Imparidentia, Myida The northwest or feathery shipworm Family: Pholadoidea, Teredinidae, Bankiinae Taxonomy: The original binomen for Bankia the presence of long siphons. Members of setacea was Xylotrya setacea, described by the family Teredinidae are modified for and Tryon in 1863 (Turner 1966). William Leach distiguished by a wood-boring mode of life described several molluscan genera, includ- (Sipe et al. 2000), pallets at the siphon tips ing Xylotrya, but how his descriptions were (see Plate 394C, Coan and Valentich-Scott interpreted varied. Although Menke be- 2007) and distinct anterior shell indentation. lieved Xylotrya to be a member of the Phola- They are commonly called shipworms (though didae, Gray understood it as a member of they are not worms at all!) and bore into many the Terdinidae and synonyimized it with the wooden structures. The common name ship- genus Bankia, a genus designated by the worm is based on their vermiform morphology latter author in 1842. Most authors refer to and a shell that only covers the anterior body Bankia setacea (e.g. Kozloff 1993; Sipe et (Ricketts and Calvin 1952; see images in al. 2000; Coan and Valentich-Scott 2007; Turner 1966). Betcher et al. 2012; Borges et al. 2012; Da- Body: Bizarrely modified bivalve with re- vidson and de Rivera 2012), although one duced, sub-globular body. For internal anato- recent paper sites Xylotrya setacea (Siddall my, see Fig. 1, Canadian…; Fig. 1 Betcher et et al. 2009). Two additional known syno- al. 2012. nyms exist currently, including Bankia Color: osumiensis, B. -
Population Dynamics and Predation Impact of the Introduced Ctenophore Mnemiopsis Leidyi in the Gullmars Fjord, West Coast of Sweden
POPULATION DYNAMICS AND PREDATION IMPACT OF THE INTRODUCED CTENOPHORE MNEMIOPSIS LEIDYI IN THE GULLMARS FJORD, WEST COAST OF SWEDEN Lene Friis Møller & Peter Tiselius Dep. Of Marine Ecology – Kristineberg University of Gothenburg The Gullmar Fjord Always stratified Well-documented Rich and diverse fauna Kristineberg Also many jellies Cnidarians Aurelia aurita Cyanea capillata Many hydromedusae Ctenophores Pleurobrachia pileus Bolinopsis infundibulum Beroe cucumis Beroe gracilis What is dominating has now changed.... Mnemiopsis leidyi - invasive ctenophore Native species along the Eats zooplankton American East Coast (and fish eggs) Invaded northern Europe in 2005/2006 High reproduction Most famous for its invasion into the Black Sea in the 80´s Given the rapid growth and high reproductive output of the Mnemiopsis, severe effects on its prey populations may be expected It is impossible to predict the outcome of the introduction into Swedish waters based on observations from other areas – both potential prey and predators differ It is therefore necessary to investigate the development and impact of Mnemiopsis locally Mnemiopsis studies in the Gullmar Fjord In the current project we study the development of the Mnemiopsis population in the Gullmar fjord by regular sampling from March 2007 to present (for long periods every week) (+ zooplankton, chl a, primary production, CTD) x Biomass (g wet weight m-3) 10 20 30 40 50 60 70 80 90 0 17‐Jun‐07 6‐Aug‐07 25‐Sep‐07 2009 2008 2007 14‐Nov‐07 3‐Jan‐08 22‐Feb‐08 Mnemiopsis biomass 12‐Apr‐08 2007-2009 1‐Jun‐08 21‐Jul‐08 9‐Sep‐08 29‐Oct‐08 18‐Dec‐08 6‐Feb‐09 28‐Mar‐09 17‐May‐09 6‐Jul‐09 25‐Aug‐09 14‐Oct‐09 3‐Dec‐09 22‐Jan‐10 Development Oral/aboral Rapoza et al. -
First Characterisation of the Populations and Immune-Related
First characterisation of the populations and immune-related activities of hemocytes from two edible gastropod species, the disk abalone, Haliotis discus discus and the spiny top shell, Turbo cornutus. Ludovic Donaghy, Hyun-Ki Hong, Christophe Lambert, Heung-Sik Park, Won Joon Shim, Kwang-Sik Choi To cite this version: Ludovic Donaghy, Hyun-Ki Hong, Christophe Lambert, Heung-Sik Park, Won Joon Shim, et al.. First characterisation of the populations and immune-related activities of hemocytes from two edible gastropod species, the disk abalone, Haliotis discus discus and the spiny top shell, Turbo cornutus.. Fish and Shellfish Immunology, Elsevier, 2010, 28 (1), pp.87-97. 10.1016/j.fsi.2009.10.006. hal- 00460531 HAL Id: hal-00460531 https://hal.archives-ouvertes.fr/hal-00460531 Submitted on 1 Mar 2010 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. First characterisation of the populations and immune-related activities of hemocytes from two edible gastropod species, the disk abalone, Haliotis discus discus and the spiny top shell, Turbo cornutus . Ludovic Donaghy a,b,* , Hyun-Ki Hong a, Christophe Lambert b, Heung-Sik Park c, Won Joon Shim d, Kwang-Sik Choi a. -
Assessing the Impact of Key Marine Invasive Non-Native Species on Welsh MPA Habitat Features, Fisheries and Aquaculture
Assessing the impact of key Marine Invasive Non-Native Species on Welsh MPA habitat features, fisheries and aquaculture. Tillin, H.M., Kessel, C., Sewell, J., Wood, C.A. Bishop, J.D.D Marine Biological Association of the UK Report No. 454 Date www.naturalresourceswales.gov.uk About Natural Resources Wales Natural Resources Wales’ purpose is to pursue sustainable management of natural resources. This means looking after air, land, water, wildlife, plants and soil to improve Wales’ well-being, and provide a better future for everyone. Evidence at Natural Resources Wales Natural Resources Wales is an evidence based organisation. We seek to ensure that our strategy, decisions, operations and advice to Welsh Government and others are underpinned by sound and quality-assured evidence. We recognise that it is critically important to have a good understanding of our changing environment. We will realise this vision by: Maintaining and developing the technical specialist skills of our staff; Securing our data and information; Having a well resourced proactive programme of evidence work; Continuing to review and add to our evidence to ensure it is fit for the challenges facing us; and Communicating our evidence in an open and transparent way. This Evidence Report series serves as a record of work carried out or commissioned by Natural Resources Wales. It also helps us to share and promote use of our evidence by others and develop future collaborations. However, the views and recommendations presented in this report are not necessarily those of -
Crepidula Formicatacrepidula Formicata
Crepidula formicataCrepidula formicata Easily seen Crepidula fornicata along the shoreline. Class: Gastropoda Order: Littorinimorpha Family: Calyptraeidae Genus: Crepidula Distribution It is native to the eastern This species has been introduced to several other countries, coast of North America. especially in Europe. It is considered to be an invasive, nuisance It occurs from the Gulf of species. The first known occurrence of Crepidula fornicata in St. Lawrence in the north Europe was in 1872. It was introduced accidently with imported all the way south to the American oysters. They have been repeatedly introduced ever Gulf of Mexico. since in ballast water and on ships’ hulls. Habitat They are most abundant in muddy or mixed muddy areas, This species occupies a reaching their highest densities in wave protected locations. variety of seabed surfaces. These include bays, estuaries and sheltered sides of wave- They also occur in a wide exposed islands. In Nova Scotia they are common in intertidal range of environmental and shallow subtidal regions. They attach themselves to almost conditions. any hard surface to be found (including each other and the shells of other living or dead hard-shelled invertebrates. Food They are active suspension feeders, generating a water current They live off of plankton through the mantle cavity by ciliary (hair-like) action and which they filter out of the trapping food particles on a mucous sheet lying across the front seawater. surface of the gill filament. Reproduction Being hermaphrodites they contain both male and female The Slipper limpet is a. reproductive organs. Sperm producing ability advances quicker protandric hermaphrodite. -
OREGON ESTUARINE INVERTEBRATES an Illustrated Guide to the Common and Important Invertebrate Animals
OREGON ESTUARINE INVERTEBRATES An Illustrated Guide to the Common and Important Invertebrate Animals By Paul Rudy, Jr. Lynn Hay Rudy Oregon Institute of Marine Biology University of Oregon Charleston, Oregon 97420 Contract No. 79-111 Project Officer Jay F. Watson U.S. Fish and Wildlife Service 500 N.E. Multnomah Street Portland, Oregon 97232 Performed for National Coastal Ecosystems Team Office of Biological Services Fish and Wildlife Service U.S. Department of Interior Washington, D.C. 20240 Table of Contents Introduction CNIDARIA Hydrozoa Aequorea aequorea ................................................................ 6 Obelia longissima .................................................................. 8 Polyorchis penicillatus 10 Tubularia crocea ................................................................. 12 Anthozoa Anthopleura artemisia ................................. 14 Anthopleura elegantissima .................................................. 16 Haliplanella luciae .................................................................. 18 Nematostella vectensis ......................................................... 20 Metridium senile .................................................................... 22 NEMERTEA Amphiporus imparispinosus ................................................ 24 Carinoma mutabilis ................................................................ 26 Cerebratulus californiensis .................................................. 28 Lineus ruber .........................................................................