Macro-To-Nanoscale Investigation of Wall-Plate Joints in the Acorn Barnacle Semibalanus Balanoides
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Examining Patterns of Genetic Variation in Canadian Marine Molluscs Through DNA Barcodes
Examining patterns of genetic variation in Canadian marine molluscs through DNA barcodes by Kara Layton A Thesis presented to The University of Guelph In partial fulfilment of requirements for the degree of Master of Science in Integrative Biology Guelph, Ontario, Canada © Kara Layton, January, 2012 ABSTRACT Examining patterns of genetic variation in Canadian marine molluscs through DNA barcodes Kara Layton Advisor: University of Guelph, 2013 Professor P.D.N Hebert In this thesis I investigate patterns of sequence variation at the COI gene in Canadian marine molluscs. The research presented begins the construction of a DNA barcode reference library for this phylum, presenting records for nearly 25% of the Canadian fauna. This work confirms that the COI gene region is an effective tool for delineating species of marine molluscs and for revealing overlooked species. This study also discovered a link between GC content and sequence divergence between congeneric species. I also provide a detailed analysis of population structure in two bivalves with similar larval development and dispersal potential, exploring how Canada’s extensive glacial history has shaped genetic structure. Both bivalve species show evidence for cryptic taxa and particularly high genetic diversity in populations from the northeast Pacific. These results have implications for the utility of DNA barcoding both for documenting biodiversity and broadening our understanding of biogeographic patterns in Holarctic species. Acknowledgements Firstly, I would like to thank my advisor Dr. Paul Hebert for providing endless guidance and support during my program and for greatly improving my research. You always encouraged my participation in field collections and conferences, allowing many opportunities to connect with colleagues and present my research to the scientific community. -
1 Crustaceans in Cold Seep Ecosystems: Fossil Record, Geographic Distribution, Taxonomic Composition, 2 and Biology 3 4 Adiël A
1 Crustaceans in cold seep ecosystems: fossil record, geographic distribution, taxonomic composition, 2 and biology 3 4 Adiël A. Klompmaker1, Torrey Nyborg2, Jamie Brezina3 & Yusuke Ando4 5 6 1Department of Integrative Biology & Museum of Paleontology, University of California, Berkeley, 1005 7 Valley Life Sciences Building #3140, Berkeley, CA 94720, USA. Email: [email protected] 8 9 2Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, CA 92354, USA. 10 Email: [email protected] 11 12 3South Dakota School of Mines and Technology, Rapid City, SD 57701, USA. Email: 13 [email protected] 14 15 4Mizunami Fossil Museum, 1-47, Yamanouchi, Akeyo-cho, Mizunami, Gifu, 509-6132, Japan. 16 Email: [email protected] 17 18 This preprint has been submitted for publication in the Topics in Geobiology volume “Ancient Methane 19 Seeps and Cognate Communities”. Specimen figures are excluded in this preprint because permissions 20 were only received for the peer-reviewed publication. 21 22 Introduction 23 24 Crustaceans are abundant inhabitants of today’s cold seep environments (Chevaldonné and Olu 1996; 25 Martin and Haney 2005; Karanovic and Brandão 2015), and could play an important role in structuring 26 seep ecosystems. Cold seeps fluids provide an additional source of energy for various sulfide- and 27 hydrocarbon-harvesting bacteria, often in symbiosis with invertebrates, attracting a variety of other 28 organisms including crustaceans (e.g., Levin 2005; Vanreusel et al. 2009; Vrijenhoek 2013). The 29 percentage of crustaceans of all macrofaunal specimens is highly variable locally in modern seeps, from 30 0–>50% (Dando et al. 1991; Levin et al. -
Balanus Glandula Class: Multicrustacea, Hexanauplia, Thecostraca, Cirripedia
Phylum: Arthropoda, Crustacea Balanus glandula Class: Multicrustacea, Hexanauplia, Thecostraca, Cirripedia Order: Thoracica, Sessilia, Balanomorpha Acorn barnacle Family: Balanoidea, Balanidae, Balaninae Description (the plate overlapping plate edges) and radii Size: Up to 3 cm in diameter, but usually (the plate edge marked off from the parietes less than 1.5 cm (Ricketts and Calvin 1971; by a definite change in direction of growth Kozloff 1993). lines) (Fig. 3b) (Newman 2007). The plates Color: Shell usually white, often irregular themselves include the carina, the carinola- and color varies with state of erosion. Cirri teral plates and the compound rostrum (Fig. are black and white (see Plate 11, Kozloff 3). 1993). Opercular Valves: Valves consist of General Morphology: Members of the Cirri- two pairs of movable plates inside the wall, pedia, or barnacles, can be recognized by which close the aperture: the tergum and the their feathery thoracic limbs (called cirri) that scutum (Figs. 3a, 4, 5). are used for feeding. There are six pairs of Scuta: The scuta have pits on cirri in B. glandula (Fig. 1). Sessile barna- either side of a short adductor ridge (Fig. 5), cles are surrounded by a shell that is com- fine growth ridges, and a prominent articular posed of a flat basis attached to the sub- ridge. stratum, a wall formed by several articulated Terga: The terga are the upper, plates (six in Balanus species, Fig. 3) and smaller plate pair and each tergum has a movable opercular valves including terga short spur at its base (Fig. 4), deep crests for and scuta (Newman 2007) (Figs. -
Marine Information Network Information on the Species and Habitats Around the Coasts and Sea of the British Isles
MarLIN Marine Information Network Information on the species and habitats around the coasts and sea of the British Isles Montagu's stellate barnacle (Chthamalus montagui) MarLIN – Marine Life Information Network Biology and Sensitivity Key Information Review Karen Riley 2002-01-28 A report from: The Marine Life Information Network, Marine Biological Association of the United Kingdom. Please note. This MarESA report is a dated version of the online review. Please refer to the website for the most up-to-date version [https://www.marlin.ac.uk/species/detail/1322]. All terms and the MarESA methodology are outlined on the website (https://www.marlin.ac.uk) This review can be cited as: Riley, K. 2002. Chthamalus montagui Montagu's stellate barnacle. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. DOI https://dx.doi.org/10.17031/marlinsp.1322.1 The information (TEXT ONLY) provided by the Marine Life Information Network (MarLIN) is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. Note that images and other media featured on this page are each governed by their own terms and conditions and they may or may not be available for reuse. Permissions beyond the scope of this license are available here. Based on a work at www.marlin.ac.uk (page left blank) Date: 2002-01-28 Montagu's stellate barnacle (Chthamalus montagui) - Marine Life Information Network See online review for distribution map Close up of Chthamalus montagui from High Water of Spring Tide level seen dry. -
The Interplay of Positive and Negative Influences
Journal of Experimental Marine Biology and Ecology 448 (2013) 162–170 Contents lists available at SciVerse ScienceDirect Journal of Experimental Marine Biology and Ecology journal homepage: www.elsevier.com/locate/jembe Effects of seaweed canopies and adult barnacles on barnacle recruitment: The interplay of positive and negative influences Arne J. Beermann a, Julius A. Ellrich a, Markus Molis b, Ricardo A. Scrosati a,⁎ a Saint Francis Xavier University, Department of Biology, Antigonish, Nova Scotia B2G 2W5, Canada b Alfred Wegener Institute for Polar and Marine Research (AWI), Am Handelshafen 12, 27570 Bremerhaven, Germany article info abstract Article history: Barnacles are dominant sessile invertebrates on many rocky shores worldwide. Hence, investigating the factors Received 15 February 2013 that affect their recruitment is important. Through field experiments done on the Atlantic coast of Canada, we Received in revised form 30 June 2013 investigated interspecificandintraspecific relationships affecting intertidal barnacle recruitment. Specifically, Accepted 1 July 2013 we evaluated the effects of seaweed canopies (Ascophyllum nodosum) and adult barnacles (Semibalanus Available online xxxx balanoides) on the density of barnacle recruits at the end of the recruitment season. The effects of three canopy treatments on barnacle recruitment and understory environmental conditions allowed us to identify positive Keywords: Ascophyllum and negative effects of canopies. At mid-intertidal elevations subjected to a moderate wave action, we found Barnacle that, during high tides, the flexible algal fronds damage wire sensors established on the substrate (whiplash Intertidal effect) and limit barnacle recruitment. However, at low tide, algal canopies limit water loss and temperature Seaweed extremes and enhance barnacle recruitment in understory habitats. -
Response of Competent Blue Mussel (Mytilus Edulis) Larvae to Positive and Negative Settlement Cues
Journal of Experimental Marine Biology and Ecology 480 (2016) 8–16 Contents lists available at ScienceDirect Journal of Experimental Marine Biology and Ecology journal homepage: www.elsevier.com/locate/jembe Response of competent blue mussel (Mytilus edulis) larvae to positive and negative settlement cues Scott L. Morello ⁎, Philip O. Yund The Downeast Institute, P.O. Box 83, Beals, ME 04611, USA article info abstract Article history: Recent work on larval settlement cues has emphasized mechanisms by which larvae exploit individual, positive Received 3 December 2015 cues (cues that larvae move toward), often in complex flow fields. Yet in natural systems, larvae of habitat Received in revised form 28 March 2016 generalists probably respond to multiple settlement cues, including a mixture of positive and negative cues. Accepted 29 March 2016 First, a simple test chamber in which cue dispersal was dominated by diffusion was used to assess whether com- Available online xxxx petent blue mussel (Mytilus edulis) larvae responded negatively or positively to cues from a variety of intertidal fl Keywords: species. Second, choice experiments tested the responses of larvae offered a mixture of con icting (positive and fl Larval behavior negative) cues from the same direction and con icting cues from different directions. Responses to individual Chemical ecology cues were predictable from established ecological interactions. Larvae were attracted to odors from conspecifics, Habitat selection tended to move toward odors from a filamentous alga, avoided odors from two predators of post-settlement Future risk mussels, and exhibited little response to odors from an herbivorous gastropod. Negative and positive cues offered Conflicting cues from the same direction produced movement both toward and away from the mixture, while offering the combined cues from different directions resulted in net movement that was largely consistent with predictions from the individual cue responses. -
Do Storms Trigger Synchronous Larval Release in Semibalanus Balanoides?
Mar Biol (2011) 158:1581–1589 DOI 10.1007/s00227-011-1671-1 ORIGINAL PAPER High-frequency observations of early-stage larval abundance: do storms trigger synchronous larval release in Semibalanus balanoides? Joanna Gyory • Jesu´s Pineda Received: 12 April 2010 / Accepted: 10 March 2011 / Published online: 24 March 2011 Ó Springer-Verlag 2011 Abstract The acorn barnacle, Semibalanus balanoides,is balanoides (L.) is among the coastal marine invertebrates thought to release larvae in response to phytoplankton that reproduce synchronously. It is a highly abundant, boreo- blooms, but there is evidence that another, unidentified cue arctic barnacle species found on rocky intertidal zones along for release may exist. We conducted high-frequency sam- the eastern and western coasts of North America and the pling in Little Harbor, Massachusetts, USA, to determine northwestern coast of Europe. It reproduces once per year in whether early-stage larval abundance was related to several the winter or spring. Within a population, planktonic larvae environmental variables, and to characterize vertical dis- are released in one or more bursts, and the release period tributions of the larvae. Larval concentrations peaked at generally ends in less than 2 weeks (Barnes 1956; Crisp 2.52 and 1.02 individuals l-1 during two storms. Larvae 1959; Lang and Ackenhusen–Johns 1981; Pineda et al. were more abundant near the surface than near the bottom. 2004). The larvae can constitute 15% of zooplankton in We suggest the hypothesis that turbid conditions and coastal waters of the northeastern United States (Frolander upward-swimming behavior may protect newly-released 1955), but their pervasiveness is limited, since the planktonic larvae from predation and cannibalism. -
Thoracia, Balanomorpha, Tetraclitidae
Rei'. West. Aust. Mus. 1990, 14(4): 665-668 Occurrence of the barnacle Tesseropora rosea (Krauss) (Thoracica, Balanomorpha, Tetraclitidae) in western Australian waters. Diana S. Jones* Tesseropora rosea was originally described from one specimen collected at Algoa Bay, South Africa (Krauss 1848). Darwin (1854) recorded material from eastern Australia and, after examining the unique South African specimen commented (p. 335) 'There can be no doubt of the identify of the African and Australian specimens. It is a singular circumstance that the same species should occur in these two distant places, and, as far as at present known, not in the intermediate, more tropical coasts'. The species has not been collected either in South Africa, or on the 'intermediate more tropical coasts' since that time. However, as well as eastern Australia, the species is also known from Lord Howe Island and the Kermadec Islands (Endean et al. 1956a, 1956b; Foster 1978; Anderson & Anderson 1985). In eastern Australia T. rosea occurs between lat. 1905 and 380, and has never been recorded from western areas ofthe continent. The species occurs abundantly in exposed coastal areas and on flat rock platforms which are subjected to strong wave action, extending from betweenjust above mean low water neap to mean high water neap tidal levels (Pope 1945; Dakin et al. 1948, 1953; Denley & Underwood 1979; Anderson & Buckle 1983; Anderson & Anderson 1985). In 1986 three live specimens of T. rosea were collected on intertidal granitic rocks at Cottesloe, Western Australia, by Ms L. M. Marsh (WAM crustacean registration number WAM 2347-86). Since 1986 four isolated large individuals of T. -
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 ......................................................................... -
Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans
Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans by Robert George Young A Thesis presented to The University of Guelph In partial fulfilment of requirements for the degree of Doctor of Philosophy in Integrative Biology Guelph, Ontario, Canada © Robert George Young, March, 2016 ABSTRACT MOLECULAR SPECIES DELIMITATION AND BIOGEOGRAPHY OF CANADIAN MARINE PLANKTONIC CRUSTACEANS Robert George Young Advisors: University of Guelph, 2016 Dr. Sarah Adamowicz Dr. Cathryn Abbott Zooplankton are a major component of the marine environment in both diversity and biomass and are a crucial source of nutrients for organisms at higher trophic levels. Unfortunately, marine zooplankton biodiversity is not well known because of difficult morphological identifications and lack of taxonomic experts for many groups. In addition, the large taxonomic diversity present in plankton and low sampling coverage pose challenges in obtaining a better understanding of true zooplankton diversity. Molecular identification tools, like DNA barcoding, have been successfully used to identify marine planktonic specimens to a species. However, the behaviour of methods for specimen identification and species delimitation remain untested for taxonomically diverse and widely-distributed marine zooplanktonic groups. Using Canadian marine planktonic crustacean collections, I generated a multi-gene data set including COI-5P and 18S-V4 molecular markers of morphologically-identified Copepoda and Thecostraca (Multicrustacea: Hexanauplia) species. I used this data set to assess generalities in the genetic divergence patterns and to determine if a barcode gap exists separating interspecific and intraspecific molecular divergences, which can reliably delimit specimens into species. I then used this information to evaluate the North Pacific, Arctic, and North Atlantic biogeography of marine Calanoida (Hexanauplia: Copepoda) plankton. -
Contributions to Zoology, 68 (4) 245-260 (2000)
Contributions to Zoology, 68 (4) 245-260 (2000) SPB Academic Publishing bv, The Hague Pyrgoma kuri Hoek, 1913: a case study in morphology and systematics of a symbiotic coral barnacle (Cirripedia: Balanomorpha) Arnold Ross & William+A. Newman Scripps Institution of Oceanography, La Jolla, California 92093-0202, U.S.A atrial Keywords: Pyrgomatidae, passageways, chemical mediation, parasitic dinoflagellates “Whoever attempts to make outfrom external characters alone, Systematics 247 without the valves will almost Chemical mediation between barnacle and host 254 disarticulating ... certainly fall into errors 259 many ...” Acknowledgements Charles Darwin, 1854 References 259 Abstract Introduction The of from the systematics pyrgomatids, stemming early 1800’s, During 1899 and 1900 H.M.S. “Siboga” explored has been based the number of traditionally on plates making up the waters of the Netherlands East Indies, or what the wall (six, four or one) and specializations in the opercular Indonesia. is now largely known as The “Siboga”, plates. A recent study ofthe related bryozobiines focused attention some 50 m in length, takes its name from a town on detailed structural modifications ofthe basis, which we now on the west coast of Sumatra. find also applies to some highly derived pyrgomatids and an Although originally archaeobalanine. Reexamination of the Indonesian coral barnacle designed to be a gun-boat it was retrofitted as a Pyrgoma kuri Hoek, 1913 has revealed previously unknown research vessel prior to completion. Under the lead- morphological features, including separable opercular plates, a ership of Max Weber (Pieters & De Visser, 1993), and basis lined with ladder arch-like true tergal spur, a to the shipboard party collected samples at 323 sta- calcareous structures covering “atrial passageways”. -
Cirripedios CD.Pdf
F R E P L A T A COMISIÓN ADMINISTRADORA DEL RÍO DE LA PLATA COMISIÓN TÉCNICA MIXTA DEL FRENTE MARÍTIMO Proyecto PROTECCIÓN AMBIENTAL DEL RÍO DE LA PLATA Y SU FRENTE MARÍTIMO: PREVENCIÓN Y CONTROL DE LA CONTAMINACIÓN Y RESTAURACIÓN DE HÁBITATS Proyecto PNUD/GEF RLA/99/G31 Subproyecto ESPECIES ANIMALES BENTÓNICAS INTRODUCIDAS, ACTUAL O POTENCIALMENTE INVASORAS EN EL SISTEMA DEL RIO DE LA PLATA Y LA REGION COSTERA OCEÁNICA ALEDAÑA DEL URUGUAY Y DE LA ARGENTINA. ALCANCE: DIAGNÓSTICO DE SITUACIÓN. RESPONSABLE: Pablo Enrique Penchaszadeh MUSEO ARGENTINO DE CIENCIAS NATURALES “BERNARDINO RIVADAVIA” Buenos Aires 2003 Este informe puede ser citado como This report may be cited as: Penchaszadeh, P.E., M.E. Borges, C. Damborenea, G. Darrigran, S. Obenat, G. Pastorino, E. Schwindt y E. Spivak. 2003. Especies animales bentónicas introducidas, actual o potencialmente invasoras en el sistema del Río de la Plata y la región costera oceánica aledaña del Uruguay y de la Argentina. En “Protección ambiental del Río de la Plata y su frente marítimo: prevención y control de la contaminación y restauración de habitats” Proyecto PNUD/GEF RLA/99/g31, 357 páginas (2003). Editor: Pablo E. Penchaszadeh Asistentes al editor: Guido Pastorino, Martin Brögger y Juan Pablo Livore. 2 TABLA DE CONTENIDOS RESUMEN ...................................................................................................................... 7 INTRODUCCIÓN........................................................................................................ 11 ALGUNAS DEFINICIONES.............................................................................................