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Biscuit Clypeaster Subdepressus (Echinodermata: Clypeasteroida)
Embryonic, Larval, and Juvenile Development of the Sea Biscuit Clypeaster subdepressus (Echinodermata: Clypeasteroida) Bruno C. Vellutini1,2*, Alvaro E. Migotto1,2 1 Centro de Biologia Marinha, Universidade de Sa˜o Paulo, Sa˜o Sebastia˜o, Sa˜o Paulo, Brazil, 2 Departamento de Zoologia, Instituto de Biocieˆncias, Universidade de Sa˜o Paulo, Sa˜o Paulo, Sa˜o Paulo, Brazil Abstract Sea biscuits and sand dollars diverged from other irregular echinoids approximately 55 million years ago and rapidly dispersed to oceans worldwide. A series of morphological changes were associated with the occupation of sand beds such as flattening of the body, shortening of primary spines, multiplication of podia, and retention of the lantern of Aristotle into adulthood. To investigate the developmental basis of such morphological changes we documented the ontogeny of Clypeaster subdepressus. We obtained gametes from adult specimens by KCl injection and raised the embryos at 260C. Ciliated blastulae hatched 7.5 h after sperm entry. During gastrulation the archenteron elongated continuously while ectodermal red-pigmented cells migrated synchronously to the apical plate. Pluteus larvae began to feed in 3 d and were *20 d old at metamorphosis; starved larvae died 17 d after fertilization. Postlarval juveniles had neither mouth nor anus nor plates on the aboral side, except for the remnants of larval spicules, but their bilateral symmetry became evident after the resorption of larval tissues. Ossicles of the lantern were present and organized in 5 groups. Each group had 1 tooth, 2 demipyramids, and 2 epiphyses with a rotula in between. Early appendages consisted of 15 spines, 15 podia (2 types), and 5 sphaeridia. -
Geological-Geomorphological and Paleontological Heritage in the Algarve (Portugal) Applied to Geotourism and Geoeducation
land Article Geological-Geomorphological and Paleontological Heritage in the Algarve (Portugal) Applied to Geotourism and Geoeducation Antonio Martínez-Graña 1,* , Paulo Legoinha 2 , José Luis Goy 1, José Angel González-Delgado 1, Ildefonso Armenteros 1, Cristino Dabrio 3 and Caridad Zazo 4 1 Department of Geology, Faculty of Sciences, University of Salamanca, 37008 Salamanca, Spain; [email protected] (J.L.G.); [email protected] (J.A.G.-D.); [email protected] (I.A.) 2 GeoBioTec, Department of Earth Sciences, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, 2829-516 Almada, Portugal; [email protected] 3 Department of Stratigraphy, Faculty of Geology, Complutense University of Madrid, 28040 Madrid, Spain; [email protected] 4 Department of Geology, Museo Nacional de Ciencias Naturales, 28006 Madrid, Spain; [email protected] * Correspondence: [email protected]; Tel.: +34-923294496 Abstract: A 3D virtual geological route on Digital Earth of the geological-geomorphological and paleontological heritage in the Algarve (Portugal) is presented, assessing the geological heritage of nine representative geosites. Eighteen quantitative parameters are used, weighing the scientific, didactic and cultural tourist interest of each site. A virtual route has been created in Google Earth, with overlaid georeferenced cartographies, as a field guide for students to participate and improve their learning. This free application allows loading thematic georeferenced information that has Citation: Martínez-Graña, A.; previously been evaluated by means of a series of parameters for identifying the importance and Legoinha, P.; Goy, J.L.; interest of a geosite (scientific, educational and/or tourist). The virtual route allows travelling from González-Delgado, J.A.; Armenteros, one geosite to another, interacting in real time from portable devices (e.g., smartphone and tablets), I.; Dabrio, C.; Zazo, C. -
Chondrostoma Nasus) Ecological Risk Screening Summary
Common Nase (Chondrostoma nasus) Ecological Risk Screening Summary U.S. Fish & Wildlife Service, April 2020 Revised, April 2020 Web Version, 2/8/2021 Organism Type: Fish Overall Risk Assessment Category: High Photo: André Karwath. Licensed under CC BY-SA 2.5. Available: https://commons.wikimedia.org/wiki/File:Chondrostoma_nasus_(aka).jpg#file. (April 2020). 1 Native Range and Status in the United States Native Range From Froese and Pauly (2021): “Europe: Basins of Black (Danube, Dniestr, South Bug and Dniepr drainages), southern Baltic (Nieman, Odra, Vistula) and southern North Seas (westward to Meuse). […] Asia: Turkey.” Status in the United States No information on occurrence, status, sale or trade in the United States was found. Chondrostoma nasus falls within Group I of New Mexico’s Department of Game and Fish Director’s Species Importation List (New Mexico Department of Game and Fish 2010). Group I species “are designated semi-domesticated animals and do not require an importation permit.” With the added restriction of “Not to be used as bait fish.” 1 Means of Introductions in the United States No introductions have been reported in the United States. Remarks Although the accepted and most used common name for Chondrostoma nasus is “Common Nase”, it appears that the simple name “Nase” is sometimes used to refer to C. nasus (Zbinden and Maier 1996; Jirsa et al. 2010). The name “Sneep” also occasionally appears in the literature (Irz et al. 2006). 2 Biology and Ecology Taxonomic Hierarchy and Taxonomic Standing From Fricke et al. (2020): -
Number of Living Species in Australia and the World
Numbers of Living Species in Australia and the World 2nd edition Arthur D. Chapman Australian Biodiversity Information Services australia’s nature Toowoomba, Australia there is more still to be discovered… Report for the Australian Biological Resources Study Canberra, Australia September 2009 CONTENTS Foreword 1 Insecta (insects) 23 Plants 43 Viruses 59 Arachnida Magnoliophyta (flowering plants) 43 Protoctista (mainly Introduction 2 (spiders, scorpions, etc) 26 Gymnosperms (Coniferophyta, Protozoa—others included Executive Summary 6 Pycnogonida (sea spiders) 28 Cycadophyta, Gnetophyta under fungi, algae, Myriapoda and Ginkgophyta) 45 Chromista, etc) 60 Detailed discussion by Group 12 (millipedes, centipedes) 29 Ferns and Allies 46 Chordates 13 Acknowledgements 63 Crustacea (crabs, lobsters, etc) 31 Bryophyta Mammalia (mammals) 13 Onychophora (velvet worms) 32 (mosses, liverworts, hornworts) 47 References 66 Aves (birds) 14 Hexapoda (proturans, springtails) 33 Plant Algae (including green Reptilia (reptiles) 15 Mollusca (molluscs, shellfish) 34 algae, red algae, glaucophytes) 49 Amphibia (frogs, etc) 16 Annelida (segmented worms) 35 Fungi 51 Pisces (fishes including Nematoda Fungi (excluding taxa Chondrichthyes and (nematodes, roundworms) 36 treated under Chromista Osteichthyes) 17 and Protoctista) 51 Acanthocephala Agnatha (hagfish, (thorny-headed worms) 37 Lichen-forming fungi 53 lampreys, slime eels) 18 Platyhelminthes (flat worms) 38 Others 54 Cephalochordata (lancelets) 19 Cnidaria (jellyfish, Prokaryota (Bacteria Tunicata or Urochordata sea anenomes, corals) 39 [Monera] of previous report) 54 (sea squirts, doliolids, salps) 20 Porifera (sponges) 40 Cyanophyta (Cyanobacteria) 55 Invertebrates 21 Other Invertebrates 41 Chromista (including some Hemichordata (hemichordates) 21 species previously included Echinodermata (starfish, under either algae or fungi) 56 sea cucumbers, etc) 22 FOREWORD In Australia and around the world, biodiversity is under huge Harnessing core science and knowledge bases, like and growing pressure. -
Natural Products in Polyclad Flatworms
marine drugs Review Natural Products in Polyclad Flatworms Justin M. McNab 1 , Jorge Rodríguez 1, Peter Karuso 2,* and Jane E. Williamson 1,* 1 Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia; [email protected] (J.M.M.); [email protected] (J.R.) 2 Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia * Correspondence: [email protected] (P.K.); [email protected] (J.E.W.) Abstract: Marine invertebrates are promising sources of novel bioactive secondary metabolites, and organisms like sponges, ascidians and nudibranchs are characterised by possessing potent defensive chemicals. Animals that possess chemical defences often advertise this fact with aposematic colouration that potential predators learn to avoid. One seemingly defenceless group that can present bright colouration patterns are flatworms of the order Polycladida. Although members of this group have typically been overlooked due to their solitary and benthic nature, recent studies have isolated the neurotoxin tetrodotoxin from these mesopredators. This review considers the potential of polyclads as potential sources of natural products and reviews what is known of the activity of the molecules found in these animals. Considering the ecology and diversity of polyclads, only a small number of species from both suborders of Polycladida, Acotylea and Cotylea have been investigated for natural products. As such, confirming assumptions as to which species are in any sense toxic or if the compounds they use are biosynthesised, accumulated from food or the product of symbiotic bacteria is difficult. However, further research into the group is suggested as these animals often display aposematic colouration and are known to prey on invertebrates rich in bioactive secondary metabolites. -
Smithsonian Miscellaneous Collections [Vol
NEW GENERA OF RECENT FREE CRINOIDS By AUSTIN HOBART CLARK Assistant, Bureau of Fisheries Since the publication of Dr. P. H. Carpenter's great monograph on the recent unstalked crinoids in 1888, the group has received very- little attention from systematists, probably because of the rarity of most of the species and the difficulty in getting together representative material of even the more common ones. Dr. Carpenter included in the family Comatulidse the genera Thaumatocrinus, Eudiocrinus, Promachocrinus (including the subsequently differentiated Decame- trocrinus), Atelecrinus, Antedon, Comatula (=Actinometra) , and Thiolliericrinus. All of these, with the exception of Antedon and Comatula, are comparatively small, strictly homogeneous genera; with them, however, the case is quite different. The genus Antedon was divided by Dr. Carpenter into four "series," and all but the first series into two or more "groups," the characters used in the differ- entiation of the groups and series being (1) the character of the joint between the costals, (2) the number of arms, (3) the number of the distichals, (4) the character of the lower pinnules, (5) the development or absence of covering plates on the ambulacra, and (6) the rounded or "wall-sided" character of the costals and lower brachials. Of all these characters, the first alone is the only one not common to two or more of his series or groups, as diagnosed by him. Taking No. 2, for instance, five of his groups and also several unassigned species are ten-armed ; all the rest have more than ten arms. A number of single species have both ten and more than ten arms, as a result of purely individual variation. -
(Echinoidea, Echinidae) (Belgium) by Joris Geys
Meded. Werkgr. Tert. Kwart. Geol. 26(1) 3-10 1 fig., 1 tab., 1 pi. Leiden, maart 1989 On the presence of Gracilechinus (Echinoidea, Echinidae) in the Late Miocene of the Antwerp area (Belgium) by Joris Geys University of Antwerp (RUCA), Antwerp, Belgium and Robert Marquet Antwerp, Belgium. Geys, J., & R. Marquet. On the presence of Gracilechinus (Echinoidea, in the of — Echinidae) Late Miocene the Antwerp area (Belgium). Meded. Werkgr. Tert. Kwart. Geol., 26(1): 00-00, 1 fig., 1 tab., 1 pi. Leiden, March 1989. Some well-preserved specimens of the regular echinoid Gracilechinus gracilis nysti (Cotteau, 1880) were collected in a temporary outcrop at Borgerhout-Antwerp, in sandstones reworked from the Deurne Sands (Late Miocene). The systematic status of this subspecies is discussed. The present state of knowledge of the Echinidae from the Neogene of the North Sea Basin is reviewed. Prof. Dr J. Geys, Dept. of Geology, University of Antwerp (RUCA), Groenenborgerlaan 171, B-2020 Antwerp, Belgium. Dr R. Marquet, Constitutiestraat 50, B-2008 Antwerp, Belgium, Contents — 3 Introduction, p. 4 Systematic palaeontology, p. 6 Discussion, p. Echinidae in the Neogene of the North Sea Basin—some considerations on 8 systematics, p. 10. References, p. INTRODUCTION extensive excavations the of E17-E18 indicated E3 Because of along western verge motorway (also as ‘Kleine and Ring’) at Borgerhout-Antwerp (Belgium), a remarkable outcrop of Neogene Quaternary beds accessible from The was March to November 1987. outcrop was situated between this motorway and the and extended from the the both ‘Singel’-road, ‘Stenenbrug’ to ‘Zurenborgbrug’, on sides 4 of the exit. -
Status and Protection of Globally Threatened Species in the Caucasus
STATUS AND PROTECTION OF GLOBALLY THREATENED SPECIES IN THE CAUCASUS CEPF Biodiversity Investments in the Caucasus Hotspot 2004-2009 Edited by Nugzar Zazanashvili and David Mallon Tbilisi 2009 The contents of this book do not necessarily reflect the views or policies of CEPF, WWF, or their sponsoring organizations. Neither the CEPF, WWF nor any other entities thereof, assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, product or process disclosed in this book. Citation: Zazanashvili, N. and Mallon, D. (Editors) 2009. Status and Protection of Globally Threatened Species in the Caucasus. Tbilisi: CEPF, WWF. Contour Ltd., 232 pp. ISBN 978-9941-0-2203-6 Design and printing Contour Ltd. 8, Kargareteli st., 0164 Tbilisi, Georgia December 2009 The Critical Ecosystem Partnership Fund (CEPF) is a joint initiative of l’Agence Française de Développement, Conservation International, the Global Environment Facility, the Government of Japan, the MacArthur Foundation and the World Bank. This book shows the effort of the Caucasus NGOs, experts, scientific institutions and governmental agencies for conserving globally threatened species in the Caucasus: CEPF investments in the region made it possible for the first time to carry out simultaneous assessments of species’ populations at national and regional scales, setting up strategies and developing action plans for their survival, as well as implementation of some urgent conservation measures. Contents Foreword 7 Acknowledgments 8 Introduction CEPF Investment in the Caucasus Hotspot A. W. Tordoff, N. Zazanashvili, M. Bitsadze, K. Manvelyan, E. Askerov, V. Krever, S. Kalem, B. Avcioglu, S. Galstyan and R. Mnatsekanov 9 The Caucasus Hotspot N. -
Chapter Two Marine Organisms
THE SINGAPORE BLUE PLAN 2018 EDITORS ZEEHAN JAAFAR DANWEI HUANG JANI THUAIBAH ISA TANZIL YAN XIANG OW NICHOLAS YAP PUBLISHED BY THE SINGAPORE INSTITUTE OF BIOLOGY OCTOBER 2018 THE SINGAPORE BLUE PLAN 2018 PUBLISHER THE SINGAPORE INSTITUTE OF BIOLOGY C/O NSSE NATIONAL INSTITUTE OF EDUCATION 1 NANYANG WALK SINGAPORE 637616 CONTACT: [email protected] ISBN: 978-981-11-9018-6 COPYRIGHT © TEXT THE SINGAPORE INSTITUTE OF BIOLOGY COPYRIGHT © PHOTOGRAPHS AND FIGURES BY ORINGAL CONTRIBUTORS AS CREDITED DATE OF PUBLICATION: OCTOBER 2018 EDITED BY: Z. JAAFAR, D. HUANG, J.T.I. TANZIL, Y.X. OW, AND N. YAP COVER DESIGN BY: ABIGAYLE NG THE SINGAPORE BLUE PLAN 2018 ACKNOWLEDGEMENTS The editorial team owes a deep gratitude to all contributors of The Singapore Blue Plan 2018 who have tirelessly volunteered their expertise and effort into this document. We are fortunate to receive the guidance and mentorship of Professor Leo Tan, Professor Chou Loke Ming, Professor Peter Ng, and Mr Francis Lim throughout the planning and preparation stages of The Blue Plan 2018. We are indebted to Dr. Serena Teo, Ms Ria Tan and Dr Neo Mei Lin who have made edits that improved the earlier drafts of this document. We are grateful to contributors of photographs: Heng Pei Yan, the Comprehensive Marine Biodiversity Survey photography team, Ria Tan, Sudhanshi Jain, Randolph Quek, Theresa Su, Oh Ren Min, Neo Mei Lin, Abraham Matthew, Rene Ong, van Heurn FC, Lim Swee Cheng, Tran Anh Duc, and Zarina Zainul. We thank The Singapore Institute of Biology for publishing and printing the The Singapore Blue Plan 2018. -
A Checklist of Turtle and Whale Barnacles
Journal of the Marine Biological Association of the United Kingdom, 2013, 93(1), 143–182. # Marine Biological Association of the United Kingdom, 2012 doi:10.1017/S0025315412000847 A checklist of turtle and whale barnacles (Cirripedia: Thoracica: Coronuloidea) ryota hayashi1,2 1International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa-shi, Chiba 277-8564 Japan, 2Marine Biology and Ecology Research Program, Extremobiosphere Research Center, Japan Agency for Marine–Earth Science and Technology A checklist of published records of coronuloid barnacles (Cirripedia: Thoracica: Coronuloidea) attached to marine vertebrates is presented, with 44 species (including 15 fossil species) belonging to 14 genera (including 3 fossil genera) and 3 families recorded. Also included is information on their geographical distribution and the hosts with which they occur. Keywords: checklist, turtle barnacles, whale barnacles, Chelonibiidae, Emersoniidae, Coronulidae, Platylepadidae, host and distribution Submitted 10 May 2012; accepted 16 May 2012; first published online 10 August 2012 INTRODUCTION Superorder THORACICA Darwin, 1854 Order SESSILIA Lamarck, 1818 In this paper, a checklist of barnacles of the superfamily Suborder BALANOMORPHA Pilsbry, 1916 Coronuloidea occurring on marine animals is presented. Superfamily CORONULOIDEA Newman & Ross, 1976 The systematic arrangement used herein follows Newman Family CHELONIBIIDAE Pilsbry, 1916 (1996) rather than Ross & Frick (2011) for reasons taken up in Hayashi (2012) in some detail. The present author Genus Chelonibia Leach, 1817 deems the subfamilies of the Cheonibiidae (Chelonibiinae, Chelonibia caretta (Spengler, 1790) Emersoniinae and Protochelonibiinae) proposed by Harzhauser et al. (2011), as well as those included of Ross & Lepas caretta Spengler, 1790: 185, plate 6, figure 5. -
Platyhelminthes) at the Queensland Museum B.M
VOLUME 53 ME M OIRS OF THE QUEENSLAND MUSEU M BRIS B ANE 30 NOVE mb ER 2007 © Queensland Museum PO Box 3300, South Brisbane 4101, Australia Phone 06 7 3840 7555 Fax 06 7 3846 1226 Email [email protected] Website www.qm.qld.gov.au National Library of Australia card number ISSN 0079-8835 Volume 53 is complete in one part. NOTE Papers published in this volume and in all previous volumes of the Memoirs of the Queensland Museum may be reproduced for scientific research, individual study or other educational purposes. Properly acknowledged quotations may be made but queries regarding the republication of any papers should be addressed to the Editor in Chief. Copies of the journal can be purchased from the Queensland Museum Shop. A Guide to Authors is displayed at the Queensland Museum web site www.qm.qld.gov.au/organisation/publications/memoirs/guidetoauthors.pdf A Queensland Government Project Typeset at the Queensland Museum THE STUDY OF TURBELLARIANS (PLATYHELMINTHES) AT THE QUEENSLAND MUSEUM B.M. ANGUS Angus, B.M. 2007 11 30: The study of turbellarians (Platyhelminthes) at the Queensland Museum. Memoirs of the Queensland Museum 53(1): 157-185. Brisbane. ISSN 0079-8835. Turbellarian research was largely ignored in Australia, apart from some early interest at the turn of the 19th century. The modern study of this mostly free-living branch of the phylum Platyhelminthes was led by Lester R.G. Cannon of the Queensland Museum. A background to the study of turbellarians is given particularly as it relates to the efforts of Cannon on symbiotic fauna, and his encouragement of visiting specialists and students. -
Remarkable Convergent Evolution in Specialized Parasitic Thecostraca (Crustacea)
Remarkable convergent evolution in specialized parasitic Thecostraca (Crustacea) Pérez-Losada, Marcos; Høeg, Jens Thorvald; Crandall, Keith A Published in: BMC Biology DOI: 10.1186/1741-7007-7-15 Publication date: 2009 Document version Publisher's PDF, also known as Version of record Citation for published version (APA): Pérez-Losada, M., Høeg, J. T., & Crandall, K. A. (2009). Remarkable convergent evolution in specialized parasitic Thecostraca (Crustacea). BMC Biology, 7(15), 1-12. https://doi.org/10.1186/1741-7007-7-15 Download date: 25. Sep. 2021 BMC Biology BioMed Central Research article Open Access Remarkable convergent evolution in specialized parasitic Thecostraca (Crustacea) Marcos Pérez-Losada*1, JensTHøeg2 and Keith A Crandall3 Address: 1CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, Portugal, 2Comparative Zoology, Department of Biology, University of Copenhagen, Copenhagen, Denmark and 3Department of Biology and Monte L Bean Life Science Museum, Brigham Young University, Provo, Utah, USA Email: Marcos Pérez-Losada* - [email protected]; Jens T Høeg - [email protected]; Keith A Crandall - [email protected] * Corresponding author Published: 17 April 2009 Received: 10 December 2008 Accepted: 17 April 2009 BMC Biology 2009, 7:15 doi:10.1186/1741-7007-7-15 This article is available from: http://www.biomedcentral.com/1741-7007/7/15 © 2009 Pérez-Losada et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.