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Genetic Evidence for the Cryptic Species Pair, Lottia Digitalis and Lottia Austrodigitalis and Microhabitat Partitioning in Sympatry
Mar Biol (2007) 152:1–13 DOI 10.1007/s00227-007-0621-4 RESEARCH ARTICLE Genetic evidence for the cryptic species pair, Lottia digitalis and Lottia austrodigitalis and microhabitat partitioning in sympatry Lisa T. Crummett · Douglas J. Eernisse Received: 8 June 2005 / Accepted: 3 January 2007 / Published online: 14 April 2007 © Springer-Verlag 2007 Abstract It has been proposed that the common West rey Peninsula, CA to near Pigeon Point, CA, where L. digi- Coast limpet, Lottia digitalis, is actually the northern coun- talis previously dominated. terpart of a cryptic species duo including, Lottia austrodigi- talis. Allele frequency diVerences between southern and northern populations at two polymorphic enzyme loci pro- Introduction vided the basis for this claim. Due to lack of further evi- dence, L. austrodigitalis is still largely unrecognized in the Sibling species are deWned as sister species that are impos- literature. Seven additional enzyme loci were examined sible or extremely diYcult to distinguish based on morpho- from populations in proposed zones of allopatry and symp- logical characters alone (Mayr and Ashlock 1991). Marine atry to determine the existence of L. austrodigitalis as a sibling species are ubiquitous, found from the poles to the sibling species to L. digitalis. SigniWcant allele frequency tropics, in most known habitats, and at depths ranging from diVerences were found at Wve enzyme loci between popula- intertidal to abyssal (Knowlton 1993). We will refer to spe- tions in Laguna Beach, southern California, and Bodega cies that are indistinguishable morphologically, whether or Bay, northern California; strongly supporting the existence not they are sister species, as “cryptic species” and will of separate species. -
Hemichordate Phylogeny: a Molecular, and Genomic Approach By
Hemichordate Phylogeny: A molecular, and genomic approach by Johanna Taylor Cannon A dissertation submitted to the Graduate Faculty of Auburn University in partial fulfillment of the requirements for the Degree of Doctor of Philosophy Auburn, Alabama May 4, 2014 Keywords: phylogeny, evolution, Hemichordata, bioinformatics, invertebrates Copyright 2014 by Johanna Taylor Cannon Approved by Kenneth M. Halanych, Chair, Professor of Biological Sciences Jason Bond, Associate Professor of Biological Sciences Leslie Goertzen, Associate Professor of Biological Sciences Scott Santos, Associate Professor of Biological Sciences Abstract The phylogenetic relationships within Hemichordata are significant for understanding the evolution of the deuterostomes. Hemichordates possess several important morphological structures in common with chordates, and they have been fixtures in hypotheses on chordate origins for over 100 years. However, current evidence points to a sister relationship between echinoderms and hemichordates, indicating that these chordate-like features were likely present in the last common ancestor of these groups. Therefore, Hemichordata should be highly informative for studying deuterostome character evolution. Despite their importance for understanding the evolution of chordate-like morphological and developmental features, relationships within hemichordates have been poorly studied. At present, Hemichordata is divided into two classes, the solitary, free-living enteropneust worms, and the colonial, tube- dwelling Pterobranchia. The objective of this dissertation is to elucidate the evolutionary relationships of Hemichordata using multiple datasets. Chapter 1 provides an introduction to Hemichordata and outlines the objectives for the dissertation research. Chapter 2 presents a molecular phylogeny of hemichordates based on nuclear ribosomal 18S rDNA and two mitochondrial genes. In this chapter, we suggest that deep-sea family Saxipendiidae is nested within Harrimaniidae, and Torquaratoridae is affiliated with Ptychoderidae. -
An Annotated Checklist of the Marine Macroinvertebrates of Alaska David T
NOAA Professional Paper NMFS 19 An annotated checklist of the marine macroinvertebrates of Alaska David T. Drumm • Katherine P. Maslenikov Robert Van Syoc • James W. Orr • Robert R. Lauth Duane E. Stevenson • Theodore W. Pietsch November 2016 U.S. Department of Commerce NOAA Professional Penny Pritzker Secretary of Commerce National Oceanic Papers NMFS and Atmospheric Administration Kathryn D. Sullivan Scientific Editor* Administrator Richard Langton National Marine National Marine Fisheries Service Fisheries Service Northeast Fisheries Science Center Maine Field Station Eileen Sobeck 17 Godfrey Drive, Suite 1 Assistant Administrator Orono, Maine 04473 for Fisheries Associate Editor Kathryn Dennis National Marine Fisheries Service Office of Science and Technology Economics and Social Analysis Division 1845 Wasp Blvd., Bldg. 178 Honolulu, Hawaii 96818 Managing Editor Shelley Arenas National Marine Fisheries Service Scientific Publications Office 7600 Sand Point Way NE Seattle, Washington 98115 Editorial Committee Ann C. Matarese National Marine Fisheries Service James W. Orr National Marine Fisheries Service The NOAA Professional Paper NMFS (ISSN 1931-4590) series is pub- lished by the Scientific Publications Of- *Bruce Mundy (PIFSC) was Scientific Editor during the fice, National Marine Fisheries Service, scientific editing and preparation of this report. NOAA, 7600 Sand Point Way NE, Seattle, WA 98115. The Secretary of Commerce has The NOAA Professional Paper NMFS series carries peer-reviewed, lengthy original determined that the publication of research reports, taxonomic keys, species synopses, flora and fauna studies, and data- this series is necessary in the transac- intensive reports on investigations in fishery science, engineering, and economics. tion of the public business required by law of this Department. -
Cortical Fibrils and Secondary Deposits in Periderm of the Hemichordate Rhabdopleura (Graptolithoidea)
Cortical fibrils and secondary deposits in periderm of the hemichordate Rhabdopleura (Graptolithoidea) PIOTR MIERZEJEWSKI and CYPRIAN KULICKI Mierzejewski, P. and Kulicki, C. 2003. Cortical fibrils and secondary deposits in periderm of the hemichordate Rhabdopleura (Graptolithoidea). Acta Palaeontologica Polonica 48 (1): 99–111. Coenecia of extant hemichordates Rhabdopleura compacta and Rh. normani were investigated using SEM techniques. Cortical fibrils were detected in their fusellar tissue for the first time. The densely packed cortical fibrils form a character− istic band−like construction in fusellar collars, similar to some Ordovician rhabdopleurids. No traces of external second− ary deposits are found in coenecia. Two types of internal secondary deposits in tubes are recognized: (1) membranous de− posits, composed of numerous, tightly packed sheets, similar to the crustoid paracortex and pseudocortex; and (2) fibrillar deposits, devoid(?) of sheets and made of cortical fibrils, arranged in parallel and interpreted as equivalent to graptolite endocortex. There is no significant difference in either the shape or the dimensions of cortical fibrils found in Rhabdopleura and graptolites. The cortical fabric of both rhabdopleuran species studied is composed of long, straight and more or less wavy, unbranched fibrils arranged in parallel; their diameters vary from 220 to 570 µm. The study shows that there is no significant difference between extinct and extant Graptolithoidea (= Pterobranchia) in the histological and ultrastructural pattern of their primary and secondary deposits of the periderm. The nonfusellar periderm of the prosicula is pitted by many depressions similar to pits in the cortical tissue of graptolites. Key words: Rhabdopleura, Pterobranchia, Hemichordata, periderm, sicula, ultrastructure, fibrils. Piotr Mierzejewski [[email protected]], Instytut Paleobiologii PAN, ul. -
Deep-Sea Video Technology Tracks a Monoplacophoran to the End of Its Trail (Mollusca, Tryblidia)
Deep-sea video technology tracks a monoplacophoran to the end of its trail (Mollusca, Tryblidia) Sigwart, J. D., Wicksten, M. K., Jackson, M. G., & Herrera, S. (2018). Deep-sea video technology tracks a monoplacophoran to the end of its trail (Mollusca, Tryblidia). Marine Biodiversity, 1-8. https://doi.org/10.1007/s12526-018-0860-2 Published in: Marine Biodiversity Document Version: Publisher's PDF, also known as Version of record Queen's University Belfast - Research Portal: Link to publication record in Queen's University Belfast Research Portal Publisher rights Copyright 2018 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policy The Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. If you discover content in the Research Portal that you believe breaches copyright or violates any law, please contact [email protected]. Download date:06. Oct. 2021 Deep-sea video technology tracks a monoplacophoran to the end of its trail (Mollusca, Tryblidia) Sigwart, J. -
Endocladia/Mastocarpus Assemblage
Mussel recovery and species dynamics at four California rocky intertidal sites: 1992 data report Item Type monograph Publisher Minerals Management Service, Pacific OCS Region Download date 04/10/2021 11:42:05 Link to Item http://hdl.handle.net/1834/33064 0 OCS Study • J MMS 96-0009 0 n Mussel Recovery and Species Dynamics at Four California 0 Rocky Intertidal Sites D 1992 Data Report 0 0 0 J 0 u u J J J u U.S. Department of the Interior J ••..:! Minerals Management Service ····~ Pacific OCS Region n OCS Study MMS 96-0009 0 Mussel Recovery and Species n Dynamics at Four California [J Rocky Intertidal Sites 0 1992 Data Report 0 D 0 Prepared by: n : I Minerals Management Service ~-) Maurice Hill [_] Lynnette Vesco Mary Elaine Dunaway Mike McCrary 0 Mark Pierson and D · Kinnetic Laboratories. Inc: 0 Eric Nigg [J [J MMS Reference No. PC 94-1 u i l U.S. Department of the Interior lJ Minerals Management Service Pacific OCS Region May 1996 [] r L r r L L It is suggested that this report be cited as follows: Minerals Management Service and Kinnetic Laboratories, Inc. 1996. Mussel recovery and L species dynamics at four California rocky intertidal sites. 1992 data report. U.S. Department of the Interior, Minerals Management Service, Pacific OCS Region. OCS Study MMS 96-0009. 151 pp. L ii L n !] PROJECT ORGANIZATION [j CONTRACTING OFFICER'S TECHNICAL REPRESENTATIVE Fred Piltz, Chief, Environmental Studies Section PROJECT/REPORT TEAM 0 Mary Elaine Dunaway Maurice Hill [! Mike McCrary Eric Nigg Mark Pierson [) Lynnette Vesco FIELD SURVEY TEAM [J Mary Elaine Dunaway Michael Foster lj Bob Gillard l~ Maurice Hill Mike McCrary EricNigg Sallie Nigg Mark Pierson Diana Stellar 0 Lynnette Vesco n PROJECT SUPPORT u Mertis Baffoe-Harding Debbie Eidson Nollie Gildow-Owens Joann Golden Janice Madison Tammy Miller Rochelle Williams-Hooks MMS ENVIRONMENTAL STUDIES PROGRAM LIAISON TomAhlfeld [] iii 11 l..J [J [] 0 ACKNOWLEDGMENTS This study was funded by the MMS Pacific OCS Regional Office in Camarillo, California. -
Uncorrected Proof
JrnlID 12526_ArtID 933_Proof# 1 - 07/12/2018 Marine Biodiversity https://doi.org/10.1007/s12526-018-0933-2 1 3 ORIGINAL PAPER 2 4 5 On the larva and the zooid of the pterobranch Rhabdopleura recondita 6 Beli, Cameron and Piraino, 2018 (Hemichordata, Graptolithina) 7 F. Strano1,2 & V. Micaroni3 & E. Beli4,5 & S. Mercurio6 & G. Scarì7 & R. Pennati6 & S. Piraino4,8 8 9 Received: 31 October 2018 /Revised: 29 November 2018 /Accepted: 3 December 2018 10 # Senckenberg Gesellschaft für Naturforschung 2018 11 Abstract 12 Hemichordates (Enteropneusta and Pterobranchia) belong to a small deuterostome invertebrate group that may offer insights on 13 the origin and evolution of the chordate nervous system. Among them, the colonial pterobranchOF Rhabdopleuridae are recognized 14 as living representatives of Graptolithina, a taxon with a rich fossil record. New information is provided here on the substrate 15 selection and the life cycle of Rhabdopleura recondita Beli, Cameron and Piraino, 2018, and for the first time, we describe the 16 nervous system organization of the larva and the adult zooid, as well as the morphological, neuroanatomical and behavioural 17 changes occurring throughout metamorphosis. Immunohistochemical analyses disclosed a centralized nervous system in the 18 sessile adult zooid, characterized by different neuronal subsets with three distinctPRO neurotransmitters, i.e. serotonin, dopamine and 19 RFamide. The peripheral nervous system comprises GABA-, serotonin-, and dopamine-immunoreactive cells. These observa- 20 tions support and integrate previous neuroanatomical findings on the pterobranchD zooid of Cephalodiscus gracilis. Indeed, this is 21 the first evidence of dopamine, RFamide and GABA neurotransmittersE in hemichordates pterobranchs. In contrast, the 22 lecithotrophic larva is characterized by a diffuse basiepidermal plexus of GABAergic cells, coupled with a small group of 23 serotonin-immunoreactive cells localized in the characteristic ventral depression. -
Graptolite-Like Fibril Pattern in the Fusellar Tissue of Palaeozoic Rhabdopleurid Pterobranchs
Graptolite-like fibril pattern in the fusellar tissue of Palaeozoic rhabdopleurid pterobranchs PIOTR MIERZEJEWSKI and CYPRIAN KULICKI Mierzejewski, P. & Kulicki, C. 2001. Graptolite-like fibril pattern in the fusellar tissue of Palaeozoic rhabdopleurid pterobranchs. - Acta Palaeontologica Polonica 46, 3, 349-366. The fusellar tissue of Palaeozoic rhabdopleurid ptdrobranchs has been studied using the SEM techniques. The fibrillar material of Ordovician Kystodendron ex gr. longicarpus and Rhabdopleuritesprimaevus exhibits a distinct dimorphism, comprising: (1) thinner, wavy and anastomosing/branching fusellar fibrils proper, producing a tight three-dimen- sional meshwork; and (2) long, more or less straight and unbranched cortical fibrils, sometimes beaded, and arranged in parallel. These fibrils are similar to the fusellar and cortical fibrils of graptolites, respectively. Until now, dimorphic fibrils and their arrange- ment within fusellar tissue were regarded as unique characters of the Graptolithina. In general, the fibrillar material of these fossils is partially preserved in the form of flaky material (new term) composed offlakes (new term). Flakes are interpreted as flattened structures originating from the fusion of several neighbouring tightly packed fibrils. A Permian rhabdopleurid, referred to as Diplohydra sp., reveals a fabric and pattern of fusellar tissue similar to that of both Ordovician rhabdopleurids but devoid (?)of cortical fibrils. The results presented here question views that: (1) substantial differences in fab- ric and pattern of fusellar tissue exist between fossil pterobranchs and graptolites; and (2) the ultrastructure of pterobranch periderm has remained unchanged at least since the Ordovician. The Palaeozoic rhabdopleurids investigated are closer ultrastructurally to graptolites than to contemporary pterobranchs. The pterobranchs and the graptolites should be treated as members of one class - the Graptolithoidea. -
A Comparison of Intertidal Species Richness and Composition Between Central California and Oahu, Hawaii
Marine Ecology. ISSN 0173-9565 ORIGINAL ARTICLE A comparison of intertidal species richness and composition between Central California and Oahu, Hawaii Chela J. Zabin1,2, Eric M. Danner3, Erin P. Baumgartner4, David Spafford5, Kathy Ann Miller6 & John S. Pearse7 1 Smithsonian Environmental Research Center, Tiburon, CA, USA 2 Department of Environmental Science and Policy, University of California, Davis, CA, USA 3 Southwest Fisheries Science Center, Santa Cruz, CA, USA 4 Department of Biology, Western Oregon University, Monmouth, OR, USA 5 Department of Botany, University of Hawaii, Manoa, HI, USA 6 University Herbarium, University of California, Berkeley, CA, USA 7 Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA, USA Keywords Abstract Climate change; range shifts; rocky shores; temporal comparisons; tropical islands; The intertidal zone of tropical islands is particularly poorly known. In contrast, tropical versus temperate. temperate locations such as California’s Monterey Bay are fairly well studied. However, even in these locations, studies have tended to focus on a few species Correspondence or locations. Here we present the results of the first broadscale surveys of Chela J. Zabin, Smithsonian Environmental invertebrate, fish and algal species richness from a tropical island, Oahu, Research Center, 3152 Paradise Drive, Hawaii, and a temperate mainland coast, Central California. Data were gath- Tiburon, CA 94920, USA. ered through surveys of 10 sites in the early 1970s and again in the mid-1990s E-mail: [email protected] in San Mateo and Santa Cruz counties, California, and of nine sites in 2001– Accepted: 18 August 2012 2005 on Oahu. Surveys were conducted in a similar manner allowing for a comparison between Oahu and Central California and, for California, a com- doi: 10.1111/maec.12007 parison between time periods 24 years apart. -
Stem Cells in Marine Organisms Baruch Rinkevich · Valeria Matranga Editors
Stem Cells in Marine Organisms Baruch Rinkevich · Valeria Matranga Editors Stem Cells in Marine Organisms 123 Editors Prof. Dr. Baruch Rinkevich Dr. Valeria Matranga Israel Oceanographic & Istituto di Biomedicina e Limnological Research Immunologia 31 080 Haifa Molecolare “Alberto Monroy” Consiglio Nazionale delle Israel Ricerche [email protected] Via La Malfa, 153 90146 Palermo Italy [email protected] ISBN 978-90-481-2766-5 e-ISBN 978-90-481-2767-2 DOI 10.1007/978-90-481-2767-2 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: 2009927004 © Springer Science+Business Media B.V. 2009 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Cover illustration: Front Cover: Botryllus schlosseri, a colonial tunicate, with extended blind termini of vasculature in the periphery. At least two disparate stem cell lineages (somatic and germ cell lines) circulate in the blood system, affecting life history parameters. Photo by Guy Paz. Back Cover: Paracentrotus lividus four-week-old larvae with fully grown rudiments. Sea urchin juveniles will develop from the echinus rudiment which followed the asymmetrical proliferation of left set-aside cells budding from the primitive intestine of the embryo. Photo by Rosa Bonaventura. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Preface Stem cell biology is a fast developing scientific discipline. -
Mediterranean Marine Science
Mediterranean Marine Science Vol. 18, 2017 Where have all the youngest gone? The postlarval and young stages of the Mediterranean endangered limpet Patella ferruginea Gmelin, 1791 GUALLART J. Laboratorio de Biología Marina, Departamento de Zoología, Universitat de València, E-46100 Burjassot, Valencia PEÑA J. Instituto de Acuicultura de Torre de la Sal (C. S. I. C.). C/ Ribera de Cabanes, s/n. 12595 Ribera de Cabanes, Castellón LUQUE Á. Laboratorio de Biología Marina, Departamento de Biología, Universidad Autónoma, C/ Darwin, 2, 28049 Madrid TEMPLADO J. Museo Natural de Ciencias Naturales (C.S.I.C.), José Gutiérrez Abascal, 2. 28006 Madrid http://dx.doi.org/10.12681/mms.2076 Copyright © 2017 To cite this article: GUALLART, J., PEÑA, J., LUQUE, Á., & TEMPLADO, J. (2018). Where have all the youngest gone? The postlarval and young stages of the Mediterranean endangered limpet Patella ferruginea Gmelin, 1791. Mediterranean Marine Science, 18(3), 385-392. doi:http://dx.doi.org/10.12681/mms.2076 http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 06/09/2019 16:12:26 | Research Article Mediterranean Marine Science Indexed in WoS (Web of Science, ISI Thomson) and SCOPUS The journal is available on line at http://www.medit-mar-sc.net http://dx.doi.org/10.12681/mms.2076 Where have all the youngest gone? The post-larval and young stages of the Mediterranean endangered limpet Patella ferruginea Gmelin, 1791 JAVIER GUALLART1, JUAN B. PEÑA2, ÁNGEL A. LUQUE3 and JOSÉ TEMPLADO4 1 Laboratorio de Biología Marina, Departamento de Zoología, Universitat de València, E-46100 Burjassot, Valencia 2 Instituto de Acuicultura de Torre de la Sal (C.S.I.C.). -
Interpreting the Paleozoogeography and Sea Level History of Thermally
Monographs of the Western North American Naturalist Volume 7 8th California Islands Symposium Article 6 9-9-2014 Interpreting the paleozoogeography and sea level history of thermally anomalous marine terrace faunas: a case study from the Last Interglacial Complex of San Clemente Island, California Daniel R. Muhs U.S. Geological Survey, Denver Federal Center, Denver, CO, [email protected] Lindsey T. Groves Natural History Museum of Los Angeles County, [email protected] R. Randall Schumann U.S. Geological Survey, Denver Federal Center, Denver, CO, [email protected] Follow this and additional works at: https://scholarsarchive.byu.edu/mwnan Recommended Citation Muhs, Daniel R.; Groves, Lindsey T.; and Schumann, R. Randall (2014) "Interpreting the paleozoogeography and sea level history of thermally anomalous marine terrace faunas: a case study from the Last Interglacial Complex of San Clemente Island, California," Monographs of the Western North American Naturalist: Vol. 7 , Article 6. Available at: https://scholarsarchive.byu.edu/mwnan/vol7/iss1/6 This Monograph is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Monographs of the Western North American Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Monographs of the Western North American Naturalist 7, © 2014, pp. 82–108 INTERPRETING THE PALEOZOOGEOGRAPHY AND SEA LEVEL HISTORY OF THERMALLY ANOMALOUS MARINE TERRACE FAUNAS: A CASE STUDY FROM THE LAST INTERGLACIAL COMPLEX OF SAN CLEMENTE ISLAND, CALIFORNIA Daniel R. Muhs1,3, Lindsey T. Groves2, and R. Randall Schumann1 ABSTRACT.—Marine invertebrate faunas with mixtures of extralimital southern and extralimital northern faunal elements, called thermally anomalous faunas, have been recognized for more than a century in the Quaternary marine terrace record of the Pacific Coast of North America.