6 1.0 Chapter I INTRODUCTION 1.1 Overview Intertidal Reefs May Undergo Considerable Change in the Near Future Due to the Combin
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Hatching Plasticity in the Tropical Gastropod Nerita Scabricosta
Invertebrate Biology x(x): 1–10. Published 2016. This article is a U.S. Government work and is in the public domain in the USA. DOI: 10.1111/ivb.12119 Hatching plasticity in the tropical gastropod Nerita scabricosta Rachel Collin,a Karah Erin Roof, and Abby Spangler Smithsonian Tropical Research Institute, 0843-03092 Balboa, Panama Abstract. Hatching plasticity has been documented in diverse terrestrial and freshwater taxa, but in few marine invertebrates. Anecdotal observations over the last 80 years have suggested that intertidal neritid snails may produce encapsulated embryos able to signifi- cantly delay hatching. The cause for delays and the cues that trigger hatching are unknown, but temperature, salinity, and wave action have been suggested to play a role. We followed individual egg capsules of Nerita scabricosta in 16 tide pools to document the variation in natural time to hatching and to determine if large delays in hatching occur in the field. Hatching occurred after about 30 d and varied significantly among tide pools in the field. Average time to hatching in each pool was not correlated with presence of potential preda- tors, temperature, salinity, or pool size. We also compared hatching time between egg cap- sules in the field to those kept in the laboratory at a constant temperature in motionless water, and to those kept in the laboratory with sudden daily water motion and temperature changes. There was no significant difference in the hatching rate between the two laboratory treatments, but capsules took, on average, twice as long to hatch in the laboratory as in the field. -
References Please Help Making This Preliminary List As Complete As Possible!
Cypraeidae - important references Please help making this preliminary list as complete as possible! ABBOTT, R.T. (1965) Cypraea arenosa Gray, 1825. Hawaiian Shell News 14(2):8 ABREA, N.S. (1980) Strange goings on among the Cypraea ziczac. Hawaiian Shell News 28 (5):4 ADEGOKE, O.S. (1973) Paleocene mollusks from Ewekoro, southern Nigeria. Malacologia 14:19-27, figs. 1-2, pls. 1-2. ADEGOKE, O.S. (1977) Stratigraphy and paleontology of the Ewekoro Formation (Paleocene) of southeastern Nigeria. Bulletins of American Paleontology 71(295):1-379, figs. 1-6, pls. 1-50. AIKEN, R. P. (2016) Description of two undescribed subspecies and one fossil species of the Genus Cypraeovula Gray, 1824 from South Africa. Beautifulcowries Magazine 8: 14-22 AIKEN, R., JOOSTE, P. & ELS, M. (2010) Cypraeovula capensis - A specie of Diversity and Beauty. Strandloper 287 p. 16 ff AIKEN, R., JOOSTE, P. & ELS, M. (2014) Cypraeovula capensis. A species of diversity and beauty. Beautifulcowries Magazine 5: 38–44 ALLAN, J. (1956) Cowry Shells of World Seas. Georgian House, Melbourne, Australia, 170 p., pls. 1-15. AMANO, K. (1992) Cypraea ohiroi and its associated molluscan species from the Miocene Kadonosawa Formation, northeast Japan. Bulletin of the Mizunami Fossil Museum 19:405-411, figs. 1-2, pl. 57. ANCEY, C.F. (1901) Cypraea citrina Gray. The Nautilus 15(7):83. ANONOMOUS. (1971) Malacological news. La Conchiglia 13(146-147):19-20, 5 unnumbered figs. ANONYMOUS. (1925) Index and errata. The Zoological Journal. 1: [593]-[603] January. ANONYMOUS. (1889) Cypraea venusta Sowb. The Nautilus 3(5):60. ANONYMOUS. (1893) Remarks on a new species of Cypraea. -
Investigating Genetic, Gene Expression and Proteomic Changes Over Temperature Gradients in Intertidal Nerita Species
INVESTIGATING GENETIC, GENE EXPRESSION AND PROTEOMIC CHANGES OVER TEMPERATURE GRADIENTS IN INTERTIDAL NERITA SPECIES Shorash Amin Bachelor of Biomedical Science (1A Honours) Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy School of Biomedical Sciences Faculty of Health Queensland University of Technology 2018 Investigating genetic, gene expression and proteomic changes over temperature gradients in intertidal Nerita species i Keywords De novo assembly; digital gene expression; genomics; heat shock protein; Ion torrent; transcriptome; Nerita albicilla; Nerita melanotragus; molluscs; proteome; RNAseq; thermal stress; Nerita melanotragus, Illumina. ii Investigating genetic, gene expression and proteomic changes over temperature gradients in intertidal Nerita species Abstract A key area of research in physiological genomics is understanding the gene expression and proteomic responses of specific species to abiotic change in their habitat. In order to investigate these responses, an appropriate group of organisms is required that is distributed across an environmental gradient. One such group of organisms that meet this requirement are class Gastropoda, which are distributed globally in a range of different environments. This highly speciose group are important socially, economically and ecologically. Species from this taxonomic group form a large component of intertidal zone fauna in many areas, globally. The intertidal zone is amongst the harshest of environments on Earth, with constant changes in temperature, pH, sea level and UV exposure. Furthermore, species inhabiting these areas are periodically submerged due to the tidal cycle. The intertidal zone can be further subdivided into the spray, upper, mid and lower intertidal sub zones. Abiotic stresses also vary across these habitats as does the level of submergence. -
Genetic Structure of Two Endemic Marine Invertebrates, Ophionereis Schayeri and Cellana Tramoserica, Along the South-Eastern Coast Of
Genetic structure of two endemic marine invertebrates, Ophionereis schayeri and Cellana tramoserica, along the south-eastern coast of Australia Fiona G. Andrews Master of Research Western Sydney University 2019 Statement of Authentication The work presented in this thesis is, to the best of my knowledge and belief, original except as acknowledged in the text. I hereby declare that I have not submitted this material, either in full or in part, for a degree at this or any other institution. ……… (Signature) ii Acknowledgements I am extremely grateful to Sebastian Holmes for his generosity and support which helped me to develop both as a scientist and person over the course of this Master of Research. There were many times when I felt close to failure, and it was only his faith which gave me the strength to continue. Thanks must also go to Karen Stephenson for assistance in the lab and Mailie Gall for support with field work. Existing and proposed outputs from this thesis This thesis has been written as a series of independent manuscripts, as such there is some repetition of general information in the individual chapters. Chapter 1 provides a general introduction. Chapter 4 provides a summary and synthesis of the proceeding chapters and outlines directions for future research. iii Table of Contents Statement of Authentication………………………………………………………….ii Acknowledgements.….………………..…………………………………………….iii Existing and proposed outputs from this thesis………...……………………………iii Contents……………………………………………………………………………...iv List of Tables…………………………………………………………………….…..vi -
E Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary
!e Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary Jessica Reeves & John Buckeridge Published by: Greypath Productions Marine Care Ricketts Point PO Box 7356, Beaumaris 3193 Copyright © 2012 Marine Care Ricketts Point !is work is copyright. Apart from any use permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission of the publisher. Photographs remain copyright of the individual photographers listed. ISBN 978-0-9804483-5-1 Designed and typeset by Anthony Bright Edited by Alison Vaughan Printed by Hawker Brownlow Education Cheltenham, Victoria Cover photo: Rocky reef habitat at Ricketts Point Marine Sanctuary, David Reinhard Contents Introduction v Visiting the Sanctuary vii How to use this book viii Warning viii Habitat ix Depth x Distribution x Abundance xi Reference xi A note on nomenclature xii Acknowledgements xii Species descriptions 1 Algal key 116 Marine invertebrate key 116 Glossary 118 Further reading 120 Index 122 iii Figure 1: Ricketts Point Marine Sanctuary. !e intertidal zone rocky shore platform dominated by the brown alga Hormosira banksii. Photograph: John Buckeridge. iv Introduction Most Australians live near the sea – it is part of our national psyche. We exercise in it, explore it, relax by it, "sh in it – some even paint it – but most of us simply enjoy its changing modes and its fascinating beauty. Ricketts Point Marine Sanctuary comprises 115 hectares of protected marine environment, located o# Beaumaris in Melbourne’s southeast ("gs 1–2). !e sanctuary includes the coastal waters from Table Rock Point to Quiet Corner, from the high tide mark to approximately 400 metres o#shore. -
The Marine Zoologist, Volume 1, Number 7, 1959
The Marine Zoologist, Volume 1, Number 7, 1959 Item Type monograph Publisher Royal Zoological Society of New South Wales Download date 23/09/2021 18:13:28 Link to Item http://hdl.handle.net/1834/32615 TI I LIBRAR THE MARINE ZOOLOGIST Vol 1. No.". Sydney, September 18, -1959 Donated by BAMFIELD MARINE STATION Dr. Ian McTaggart Cowan ~~THE some of the molluscs these were replaced as soon as the "danger" had MARINE ZOOLOGIST" passed. Owing to the darkness and depth of water it was difficult to make detailed observations of parental care. The mother used her siphon to Vol. 1. No.7. squirt water over the eggs, and her tentacles were usually weaving in and out among the egg-strings. The same thing was observed with the female in (Incorporated with the Proceedings of the Royal Zoological Society of April 1957, and Le Souef & Allan recorded the fact in some detail in New South Wales, 1957-58, published September 18, 1959.) 1933 and 1937. Unfortunately on 29th October 1957 the tank had to be emptied and cleaned and the octopus was released into the sea in a rather weak state. Her "nest" was destroyed and the eggs removed and examined. It came as a surprise to find that hatching had commenced and was progressing at a rapid rate because the eggs examined on 8th October showed little sign Some Observations on the Development of Two of development and it was believed that, as reported by Le Souef & Allan (1937), 5-6 weeks had to elapse between laying and hatching. -
THE LISTING of PHILIPPINE MARINE MOLLUSKS Guido T
August 2017 Guido T. Poppe A LISTING OF PHILIPPINE MARINE MOLLUSKS - V1.00 THE LISTING OF PHILIPPINE MARINE MOLLUSKS Guido T. Poppe INTRODUCTION The publication of Philippine Marine Mollusks, Volumes 1 to 4 has been a revelation to the conchological community. Apart from being the delight of collectors, the PMM started a new way of layout and publishing - followed today by many authors. Internet technology has allowed more than 50 experts worldwide to work on the collection that forms the base of the 4 PMM books. This expertise, together with modern means of identification has allowed a quality in determinations which is unique in books covering a geographical area. Our Volume 1 was published only 9 years ago: in 2008. Since that time “a lot” has changed. Finally, after almost two decades, the digital world has been embraced by the scientific community, and a new generation of young scientists appeared, well acquainted with text processors, internet communication and digital photographic skills. Museums all over the planet start putting the holotypes online – a still ongoing process – which saves taxonomists from huge confusion and “guessing” about how animals look like. Initiatives as Biodiversity Heritage Library made accessible huge libraries to many thousands of biologists who, without that, were not able to publish properly. The process of all these technological revolutions is ongoing and improves taxonomy and nomenclature in a way which is unprecedented. All this caused an acceleration in the nomenclatural field: both in quantity and in quality of expertise and fieldwork. The above changes are not without huge problematics. Many studies are carried out on the wide diversity of these problems and even books are written on the subject. -
Version of the Manuscript
Accepted Manuscript Antarctic and sub-Antarctic Nacella limpets reveal novel evolutionary charac- teristics of mitochondrial genomes in Patellogastropoda Juan D. Gaitán-Espitia, Claudio A. González-Wevar, Elie Poulin, Leyla Cardenas PII: S1055-7903(17)30583-3 DOI: https://doi.org/10.1016/j.ympev.2018.10.036 Reference: YMPEV 6324 To appear in: Molecular Phylogenetics and Evolution Received Date: 15 August 2017 Revised Date: 23 July 2018 Accepted Date: 30 October 2018 Please cite this article as: Gaitán-Espitia, J.D., González-Wevar, C.A., Poulin, E., Cardenas, L., Antarctic and sub- Antarctic Nacella limpets reveal novel evolutionary characteristics of mitochondrial genomes in Patellogastropoda, Molecular Phylogenetics and Evolution (2018), doi: https://doi.org/10.1016/j.ympev.2018.10.036 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Version: 23-07-2018 SHORT COMMUNICATION Running head: mitogenomes Nacella limpets Antarctic and sub-Antarctic Nacella limpets reveal novel evolutionary characteristics of mitochondrial genomes in Patellogastropoda Juan D. Gaitán-Espitia1,2,3*; Claudio A. González-Wevar4,5; Elie Poulin5 & Leyla Cardenas3 1 The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China 2 CSIRO Oceans and Atmosphere, GPO Box 1538, Hobart 7001, TAS, Australia. -
MOLECULAR PHYLOGENY of the NERITIDAE (GASTROPODA: NERITIMORPHA) BASED on the MITOCHONDRIAL GENES CYTOCHROME OXIDASE I (COI) and 16S Rrna
ACTA BIOLÓGICA COLOMBIANA Artículo de investigación MOLECULAR PHYLOGENY OF THE NERITIDAE (GASTROPODA: NERITIMORPHA) BASED ON THE MITOCHONDRIAL GENES CYTOCHROME OXIDASE I (COI) AND 16S rRNA Filogenia molecular de la familia Neritidae (Gastropoda: Neritimorpha) con base en los genes mitocondriales citocromo oxidasa I (COI) y 16S rRNA JULIAN QUINTERO-GALVIS 1, Biólogo; LYDA RAQUEL CASTRO 1,2 , Ph. D. 1 Grupo de Investigación en Evolución, Sistemática y Ecología Molecular. INTROPIC. Universidad del Magdalena. Carrera 32# 22 - 08. Santa Marta, Colombia. [email protected]. 2 Programa Biología. Universidad del Magdalena. Laboratorio 2. Carrera 32 # 22 - 08. Sector San Pedro Alejandrino. Santa Marta, Colombia. Tel.: (57 5) 430 12 92, ext. 273. [email protected]. Corresponding author: [email protected]. Presentado el 15 de abril de 2013, aceptado el 18 de junio de 2013, correcciones el 26 de junio de 2013. ABSTRACT The family Neritidae has representatives in tropical and subtropical regions that occur in a variety of environments, and its known fossil record dates back to the late Cretaceous. However there have been few studies of molecular phylogeny in this family. We performed a phylogenetic reconstruction of the family Neritidae using the COI (722 bp) and the 16S rRNA (559 bp) regions of the mitochondrial genome. Neighbor-joining, maximum parsimony and Bayesian inference were performed. The best phylogenetic reconstruction was obtained using the COI region, and we consider it an appropriate marker for phylogenetic studies within the group. Consensus analysis (COI +16S rRNA) generally obtained the same tree topologies and confirmed that the genus Nerita is monophyletic. The consensus analysis using parsimony recovered a monophyletic group consisting of the genera Neritina , Septaria , Theodoxus , Puperita , and Clithon , while in the Bayesian analyses Theodoxus is separated from the other genera. -
Shell's Field Guide C.20.1 150 FB.Pdf
1 C.20.1 Human beings have an innate connection and fascination with the ocean & wildlife, but still we know more about the moon than our Oceans. so it’s a our effort to introduce a small part of second largest phylum “Mollusca”, with illustration of about 600 species / verities Which will quit useful for those, who are passionate and involved with exploring shells. This database made from our personal collection made by us in last 15 years. Also we have introduce website “www.conchology.co.in” where one can find more introduction related to our col- lection, general knowledge of sea life & phylum “Mollusca”. Mehul D. Patel & Hiral M. Patel At.Talodh, Near Water Tank Po.Bilimora - 396321 Dist - Navsari, Gujarat, India [email protected] www.conchology.co.in 2 Table of Contents Hints to Understand illustration 4 Reference Books 5 Mollusca Classification Details 6 Hypothetical view of Gastropoda & Bivalvia 7 Habitat 8 Shell collecting tips 9 Shell Identification Plates 12 Habitat : Sea Class : Bivalvia 12 Class : Cephalopoda 30 Class : Gastropoda 31 Class : Polyplacophora 147 Class : Scaphopoda 147 Habitat : Land Class : Gastropoda 148 Habitat :Freshwater Class : Bivalvia 157 Class : Gastropoda 158 3 Hints to Understand illustration Scientific Name Author Common Name Reference Book Page Serial No. No. 5 as Details shown Average Size Species No. For Internal Ref. Habitat : Sea Image of species From personal Land collection (Not in Scale) Freshwater Page No.8 4 Reference Books Book Name Short Format Used Example Book Front Look p-Plate No.-Species Indian Seashells, by Dr.Apte p-29-16 No. -
Mollusca: Caenogastropoda), Con Una Nueva Propuesta De Clasificación Supragenérica
SPIRA 2006 Vol. 2 Núm. 1 Pàg. 41-62 Consideraciones taxonómicas sobre la fami- lia Cypraeidae Rafinesque, 1815 (Mollusca: Caenogastropoda), con una nueva propuesta de clasificación supragenérica JOAQUÍN LÓPEZ SORIANO Marina 119, 3º 1ª, 08013 Barcelona. E-mail: [email protected] Resumen.—Consideraciones taxonómicas sobre la familia Cypraeidae Rafinesque, 1815 (Mollusca: Caenogastropoda), con una nueva propuesta de clasificación supragenérica. En el presente artículo se presentan los nuevos datos relativos a la taxonomía molecular de la familia Cypraeidae descritos en la bibliografía y basados en la secuenciación de dos genes mitocondriales. Se propone en base a ellos una nueva clasificación en 11 subfamilias, incluyendo como novedad Pustulariinae, Pseudozonariinae y Bistolidinae. Se revisa asimismo la filogenia del género Cribrarula, con la propuesta de un nuevo árbol filogenètico en todo el Indopacífico y de una nueva clasificación de los taxones que incluye. Palabras clave.—Cypraeidae, Taxonomía molecular, DNA mitocondrial, subfamilias, Cribrarula. Resum.—Consideracions taxonòmiques sobre la família Cypraeidae Rafinesque, 1815 (Mollusca: Caenogastropoda), amb una nova proposta de classificació supragenèrica. En el present article es presenten les noves dades relatives a la taxonomia molecular de la família Cypraeidae descrites a la bibliografia i basades en la seqüenciació de dos gens mitocondrials. Es proposa en base a aquestes dades una nova classificació en 11 subfamílies, incloent com a novetat Pustulariinae, Pseudozonariinae i Bistolidinae. Es revisa també la filogènia del gènere Cribrarula, amb la proposta d’un nou arbre filogenètic a tot l’Indopacífic i d’una nova classificació dels tàxons que inclou. Paraules clau.—Cypraeidae, Taxonomia molecular, DNA mitocondrial, subfamílies, Cribrarula. Abstract.—Taxonomical consideration about the family Cypraeidae Rafinesque, 1815 (Mollusca: Caenogastropoda), with the proposal of a new suprageneric classification. -
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bioRxiv preprint doi: https://doi.org/10.1101/457770; this version posted October 31, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC 4.0 International license. 1 Deep gastropod relationships resolved 1 2 2 Tauana Junqueira Cunha and Gonzalo Giribet Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA 1Corresponding author: [email protected] | orcid.org/0000-0002-8493-2117 [email protected] | orcid.org/0000-0002-5467-8429 3 4 Abstract 5 Gastropod mollusks are arguably the most diverse and abundant animals in the oceans, and are 6 successful colonizers of terrestrial and freshwater environments. Here we resolve deep relationships between 7 the five major gastropod lineages - Caenogastropoda, Heterobranchia, Neritimorpha, Patellogastropoda 8 and Vetigastropoda - with highly congruent and supported phylogenomic analyses. We expand taxon 9 sampling for underrepresented lineages with new transcriptomes, and conduct analyses accounting for the 10 most pervasive sources of systematic errors in large datasets, namely compositional heterogeneity, site 11 heterogeneity, heterotachy, variation in evolutionary rates among genes, matrix completeness and gene 12 tree conflict. We find that vetigastropods and patellogastropods are sister taxa, and that neritimorphs 13 are the sister group to caenogastropods and heterobranchs. With this topology, we reject the traditional 14 Archaeogastropoda, which united neritimorphs, vetigastropods and patellogastropods, and is still used in 15 the organization of collections of many natural history museums.