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  • CEPHALOPODS 688 Cephalopods
    click for previous page CEPHALOPODS 688 Cephalopods Introduction and GeneralINTRODUCTION Remarks AND GENERAL REMARKS by M.C. Dunning, M.D. Norman, and A.L. Reid iving cephalopods include nautiluses, bobtail and bottle squids, pygmy cuttlefishes, cuttlefishes, Lsquids, and octopuses. While they may not be as diverse a group as other molluscs or as the bony fishes in terms of number of species (about 600 cephalopod species described worldwide), they are very abundant and some reach large sizes. Hence they are of considerable ecological and commercial fisheries importance globally and in the Western Central Pacific. Remarks on MajorREMARKS Groups of CommercialON MAJOR Importance GROUPS OF COMMERCIAL IMPORTANCE Nautiluses (Family Nautilidae) Nautiluses are the only living cephalopods with an external shell throughout their life cycle. This shell is divided into chambers by a large number of septae and provides buoyancy to the animal. The animal is housed in the newest chamber. A muscular hood on the dorsal side helps close the aperture when the animal is withdrawn into the shell. Nautiluses have primitive eyes filled with seawater and without lenses. They have arms that are whip-like tentacles arranged in a double crown surrounding the mouth. Although they have no suckers on these arms, mucus associated with them is adherent. Nautiluses are restricted to deeper continental shelf and slope waters of the Indo-West Pacific and are caught by artisanal fishers using baited traps set on the bottom. The flesh is used for food and the shell for the souvenir trade. Specimens are also caught for live export for use in home aquaria and for research purposes.
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  • Complete Transcriptome Assembly and Annotation of a Critically Important
    Environment International 137 (2020) 105319 Contents lists available at ScienceDirect Environment International journal homepage: www.elsevier.com/locate/envint Complete transcriptome assembly and annotation of a critically important amphipod species in freshwater ecotoxicological risk assessment: Gammarus T fossarum ⁎ Domenico R. Caputoa,1, Samuel C. Robsonb,1, Inge Wernerc, Alex T. Forda, a Institute of Marine Sciences, School of Biological Sciences, University of Portsmouth, Ferry Road, Portsmouth PO4 9LY, UK b Centre for Enzyme Innovation, St. Michael's Building, University of Portsmouth, White Swan Road, Portsmouth PO1 2DT, UK c Swiss Centre for Applied Ecotoxicology, Eawag - EPFL, Überlandstrasse 133, 8600 Dübendorf, Switzerland ARTICLE INFO ABSTRACT Handling Editor: Hefa Cheng Because of their crucial role in ecotoxicological risk assessment, amphipods (Crustacea) are commonly employed Keywords: as model species in a wide range of studies. However, despite their ecological importance, their genome has not Gammarus fossarum yet been completely annotated and molecular mechanisms underlying key pathways, such as the serotonin RNA sequencing pathway, in development of ecotoxicological biomarkers of exposure to neuroactive pharmaceuticals are still De novo assembly poorly understood. Furthermore, genetic similarities and discrepancies with other model arthropods (e.g., Serotonin pathway Drosophila melanogaster) have not been completely clarified. In this report, we present a new transcriptome assembly of Gammarus fossarum, an important amphipod species, widespread in Central Europe. RNA-Seq with Illumina HiSeq technology was used to analyse samples extracted from total internal tissues. We used the Trinity and Trinotate software suites for transcriptome assembly and annotation, respectively. The quality of this as- sembly and the affiliated targeted homology searches greatly enrich the molecular knowledge on this species.
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  • Phylogeny and Phylogeography of the Family Hyalidae (Crustacea: Amphipoda) Along the Northeast Atlantic Coasts
    ALMA MATER STUDIORUM UNIVERSITÀ DI BOLOGNA SCUOLA DI SCIENZE - CAMPUS DI RAVENNA CORSO DI LAUREA MAGISTRALE IN BIOLOGIA MARINA Phylogeny and phylogeography of the family Hyalidae (Crustacea: Amphipoda) along the northeast Atlantic coasts Tesi di laurea in Alterazione e Conservazione degli Habitat Marini Relatore Presentata da Prof. Marco Abbiati Andrea Desiderato Correlatore Prof. Henrique Queiroga II sessione Anno accademico 2014/2015 “...Nothing at first can appear more difficult to believe than that the more complex organs and instincts should have been perfected, not by means superior to, though analogous with, human reason, but by the accumulation of innumerable slight variations, each good for the individual possessor…” (Darwin 1859) 1 1) Index 1) Index ------------------------------------------------------------------------------------------------ 2 2) Abstract ------------------------------------------------------------------------------------------- 3 3) Introduction ------------------------------------------------------------------------------------- 4 a) Hyalidae Bulycheva, 1957 ----------------------------------------------------------------- 4 b) Phylogeny -------------------------------------------------------------------------------------- 6 i) Phylogeny of Hyalidae -------------------------------------------------------------------- 7 c) The DNA barcode --------------------------------------------------------------------------- 8 d) Apohyale prevostii (Milne Edwars, 1830) --------------------------------------------- 9
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  • 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.
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  • Boletín En Versión
    64 2015 CHILE ISSN - 0027 - 3910 64BOLETIN MUSEO NACIONAL DE HISTORIA NATURAL CHILE MUSEO NACIONAL DE HISTORIA NATURAL DE HISTORIA MUSEO NACIONAL Boletín del Museo Nacional de Historia Natural, Chile - Nº 64 - 284 p. - 2015 BOLETIN 64ISSN - 0027 - 3910 BOLETIN MUSEO NACIONAL DE HISTORIA NATURAL CHILE Boletín del Museo Nacional de Historia Natural, Chile - Nº 64 - 284 p. - 2015 MINISTERIO DE EDUCACIÓN PÚBLICA Ministra de Educación Adriana Delpiano Puelma Subsecretaria de Educación Valentina Quiroga Canahuate Dirección de Bibliotecas, Ángel Cabeza Monteira Archivos y Museos Diagramación Herman Núñez Ajustes de diagramación Milka Marinov BOLETÍN DEL MUSEO NACIONAL DE HISTORIA NATURAL DE CHILE Director Claudio Gómez P. Editor Herman Núñez C. Coeditores Jhoann Canto H. David Rubilar R. Francisco Urra L. Comité Editorial Mario Elgueta D. Gloria Rojas V. David Rubilar R. Rubén Stehberg L. José Yáñez V. (c) Dirección de Bibliotecas, Archivos y Museos Inscripción Nº Edición de 100 ejemplares Museo Nacional de Historia Natural Casilla 787 Santiago de Chile www.mnhn.cl Este volumen se encuentra disponible en soporte electrónico como disco compacto Contribución del Museo Nacional de Historia Natural al Programa del Conocimiento y Preservación de la Diversidad Biológica Las opiniones vertidad en cada uno de los artículos publicados son de exclusiva responsabilidad del (de los) autor (es) respectivo (s) BOLETÍN DEL MUSEO NACIONAL DE HISTORIA NATURAL CHILE 2015 64 SUMARIO ÁNGEL CABEZA MONTEIRA Prólogo ..........................................................................................................................................................7
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  • Additions to and Revisions of the Amphipod (Crustacea: Amphipoda) Fauna of South Africa, with a List of Currently Known Species from the Region
    Additions to and revisions of the amphipod (Crustacea: Amphipoda) fauna of South Africa, with a list of currently known species from the region Rebecca Milne Department of Biological Sciences & Marine Research Institute, University of CapeTown, Rondebosch, 7700 South Africa & Charles L. Griffiths* Department of Biological Sciences & Marine Research Institute, University of CapeTown, Rondebosch, 7700 South Africa E-mail: [email protected] (with 13 figures) Received 25 June 2013. Accepted 23 August 2013 Three species of marine Amphipoda, Peramphithoe africana, Varohios serratus and Ceradocus isimangaliso, are described as new to science and an additional 13 species are recorded from South Africa for the first time. Twelve of these new records originate from collecting expeditions to Sodwana Bay in northern KwaZulu-Natal, while one is an introduced species newly recorded from Simon’s Town Harbour. In addition, we collate all additions and revisions to the regional amphipod fauna that have taken place since the last major monographs of each group and produce a comprehensive, updated faunal list for the region. A total of 483 amphipod species are currently recognized from continental South Africa and its Exclusive Economic Zone . Of these, 35 are restricted to freshwater habitats, seven are terrestrial forms, and the remainder either marine or estuarine. The fauna includes 117 members of the suborder Corophiidea, 260 of the suborder Gammaridea, 105 of the suborder Hyperiidea and a single described representative of the suborder Ingolfiellidea.
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  • Biochemical Divergence Between Cavernicolous and Marine
    The position of crustaceans within Arthropoda - Evidence from nine molecular loci and morphology GONZALO GIRIBET', STEFAN RICHTER2, GREGORY D. EDGECOMBE3 & WARD C. WHEELER4 Department of Organismic and Evolutionary- Biology, Museum of Comparative Zoology; Harvard University, Cambridge, Massachusetts, U.S.A. ' Friedrich-Schiller-UniversitdtJena, Instituifiir Spezielte Zoologie und Evolutionsbiologie, Jena, Germany 3Australian Museum, Sydney, NSW, Australia Division of Invertebrate Zoology, American Museum of Natural History, New York, U.S.A. ABSTRACT The monophyly of Crustacea, relationships of crustaceans to other arthropods, and internal phylogeny of Crustacea are appraised via parsimony analysis in a total evidence frame­ work. Data include sequences from three nuclear ribosomal genes, four nuclear coding genes, and two mitochondrial genes, together with 352 characters from external morphol­ ogy, internal anatomy, development, and mitochondrial gene order. Subjecting the com­ bined data set to 20 different parameter sets for variable gap and transversion costs, crusta­ ceans group with hexapods in Tetraconata across nearly all explored parameter space, and are members of a monophyletic Mandibulata across much of the parameter space. Crustacea is non-monophyletic at low indel costs, but monophyly is favored at higher indel costs, at which morphology exerts a greater influence. The most stable higher-level crusta­ cean groupings are Malacostraca, Branchiopoda, Branchiura + Pentastomida, and an ostracod-cirripede group. For combined data, the Thoracopoda and Maxillopoda concepts are unsupported, and Entomostraca is only retrieved under parameter sets of low congruence. Most of the current disagreement over deep divisions in Arthropoda (e.g., Mandibulata versus Paradoxopoda or Cormogonida versus Chelicerata) can be viewed as uncertainty regarding the position of the root in the arthropod cladogram rather than as fundamental topological disagreement as supported in earlier studies (e.g., Schizoramia versus Mandibulata or Atelocerata versus Tetraconata).
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  • Journal of Natural History
    This article was downloaded by:[Smithsonian Trpcl Res Inst] On: 24 July 2008 Access Details: [subscription number 790740476] Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK Journal of Natural History Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713192031 New species and records of anthuridean isopod crustaceans from the Indian Ocean Brian Kensley a; Marilyn Schotte a a Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA. Online Publication Date: 01 November 2000 To cite this Article: Kensley, Brian and Schotte, Marilyn (2000) 'New species and records of anthuridean isopod crustaceans from the Indian Ocean', Journal of Natural History, 34:11, 2057 — 2121 To link to this article: DOI: 10.1080/002229300750022358 URL: http://dx.doi.org/10.1080/002229300750022358 PLEASE SCROLL DOWN FOR ARTICLE Full terms and conditions of use: http://www.informaworld.com/terms-and-conditions-of-access.pdf This article maybe used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.
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  • (Peracarida: Isopoda) Inferred from 18S Rdna and 16S Rdna Genes
    76 (1): 1 – 30 14.5.2018 © Senckenberg Gesellschaft für Naturforschung, 2018. Relationships of the Sphaeromatidae genera (Peracarida: Isopoda) inferred from 18S rDNA and 16S rDNA genes Regina Wetzer *, 1, Niel L. Bruce 2 & Marcos Pérez-Losada 3, 4, 5 1 Research and Collections, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007 USA; Regina Wetzer * [[email protected]] — 2 Museum of Tropical Queensland, 70–102 Flinders Street, Townsville, 4810 Australia; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa; Niel L. Bruce [[email protected]] — 3 Computation Biology Institute, Milken Institute School of Public Health, The George Washington University, Ashburn, VA 20148, USA; Marcos Pérez-Losada [mlosada @gwu.edu] — 4 CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal — 5 Department of Invertebrate Zoology, US National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA — * Corresponding author Accepted 13.x.2017. Published online at www.senckenberg.de/arthropod-systematics on 30.iv.2018. Editors in charge: Stefan Richter & Klaus-Dieter Klass Abstract. The Sphaeromatidae has 100 genera and close to 700 species with a worldwide distribution. Most are abundant primarily in shallow (< 200 m) marine communities, but extend to 1.400 m, and are occasionally present in permanent freshwater habitats. They play an important role as prey for epibenthic fishes and are commensals and scavengers. Sphaeromatids’ impressive exploitation of diverse habitats, in combination with diversity in female life history strategies and elaborate male combat structures, has resulted in extraordinary levels of homoplasy.
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  • Hickman's Pygmy Mountain Shrimp (Allanaspides Hickmani) Is a Small, Shrimp-Like Crustacean Belonging to the Family Anaspididae
    THREATENED SPECIES LISTING STATEMENT Hickman’s Pygmy Mountain Shrimp Allanaspides hickmani Swain Wilson and Ong 1971 Status Commonwealth Endangered Species Protection Act 1992 . .Not listed Tasmanian Threatened Species Protection Act 1995 . .Rare Description Hickman's pygmy mountain shrimp (Allanaspides hickmani) is a small, shrimp-like crustacean belonging to the family Anaspididae. This family contains three genera, Allanaspides, Anaspides and Paranaspides, all of which are restricted to Tasmania. Allanaspides species can be readily identified by the presence of a conspicuous transparent window on its back (dorsal window) and stalked eyes. The two species of Allanaspides (A. hickmani and A. helonomus) can be separated by the size, shape and colour of this window. Hickman's pygmy 6 mm mountain shrimp has a rectangular shaped dorsal window which covers most of the width of the dorsal surface Illustration: Karen Richards behind the head; the tissue below the dorsal window contains a bright red pigment. A. helonomus has a clear, oval-shaped dorsal window covering approximately half the width of the dorsal surface behind the head (Swain et al. 1970; Swain et al. 1971). Hickman's pygmy mountain shrimp has its eyes situated terminally on eyestalks and adult males attain a body length of 11.7 mm. A. helonomus has its eyes positioned laterally on the end of the eyestalks and is the slightly larger species, attaining a body length of 15 mm. A more detailed description of Hickman's pygmy mountain shrimp is provided by Swain et al. (1971). The life history of Hickman's pygmy mountain shrimp is poorly known and can only be inferred from what little information is available for A.
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  • Tarantulas and Social Spiders
    Tarantulas and Social Spiders: A Tale of Sex and Silk by Jonathan Bull BSc (Hons) MSc ICL Thesis Presented to the Institute of Biology of The University of Nottingham in Partial Fulfilment of the Requirements for the Degree of Doctor of Philosophy The University of Nottingham May 2012 DEDICATION To my parents… …because they both said to dedicate it to the other… I dedicate it to both ii ACKNOWLEDGEMENTS First and foremost I would like to thank my supervisor Dr Sara Goodacre for her guidance and support. I am also hugely endebted to Dr Keith Spriggs who became my mentor in the field of RNA and without whom my understanding of the field would have been but a fraction of what it is now. Particular thanks go to Professor John Brookfield, an expert in the field of biological statistics and data retrieval. Likewise with Dr Susan Liddell for her proteomics assistance, a truly remarkable individual on par with Professor Brookfield in being able to simplify even the most complex techniques and analyses. Finally, I would really like to thank Janet Beccaloni for her time and resources at the Natural History Museum, London, permitting me access to the collections therein; ten years on and still a delight. Finally, amongst the greats, Alexander ‘Sasha’ Kondrashov… a true inspiration. I would also like to express my gratitude to those who, although may not have directly contributed, should not be forgotten due to their continued assistance and considerate nature: Dr Chris Wade (five straight hours of help was not uncommon!), Sue Buxton (direct to my bench creepy crawlies), Sheila Keeble (ventures and cleans where others dare not), Alice Young (read/checked my thesis and overcame her arachnophobia!) and all those in the Centre for Biomolecular Sciences.
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  • Diversity of Tanaidacea (Crustacea: Peracarida) in the World's Oceans - How Far Have We Come?
    The University of Southern Mississippi The Aquila Digital Community Faculty Publications 4-1-2012 Diversity of Tanaidacea (Crustacea: Peracarida) in the World's Oceans - How Far Have We Come? Gary Anderson University of Southern Mississippi, [email protected] Magdalena Blazewicz-Paszkowycz University of Łódź, [email protected] Roger Bamber Artoo Marine Biology Consultants, [email protected] Follow this and additional works at: https://aquila.usm.edu/fac_pubs Part of the Marine Biology Commons Recommended Citation Anderson, G., Blazewicz-Paszkowycz, M., Bamber, R. (2012). Diversity of Tanaidacea (Crustacea: Peracarida) in the World's Oceans - How Far Have We Come?. PLoS One, 7(4), 1-11. Available at: https://aquila.usm.edu/fac_pubs/160 This Article is brought to you for free and open access by The Aquila Digital Community. It has been accepted for inclusion in Faculty Publications by an authorized administrator of The Aquila Digital Community. For more information, please contact [email protected]. Diversity of Tanaidacea (Crustacea: Peracarida) in the World’s Oceans – How Far Have We Come? Magdalena Blazewicz-Paszkowycz1*, Roger Bamber2, Gary Anderson3 1 Department of Polar Biology and Oceanobiology, University of Ło´dz´,Ło´dz´, Poland, 2 Artoo Marine Biology Consultants, Ocean Quay Marina, Southampton, Hants, United Kingdom, 3 Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, Mississippi, United States of America Abstract Tanaidaceans are small peracarid crustaceans which occur in all marine habitats, over the full range of depths, and rarely into fresh waters. Yet they have no obligate dispersive phase in their life-cycle. Populations are thus inevitably isolated, and allopatric speciation and high regional diversity are inevitable; cosmopolitan distributions are considered to be unlikely or non-existent.
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