DOCSLIB.ORG

Crustacea, Peracarida, Mysida)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Crustacea, Peracarida, Mysida) Leonardo Kenji Miyashita Biodiversity, distribution, feeding and trophic role of marine mysids (Crustacea, Peracarida, Mysida) Thesis submitted to the Oceanographic Institute of the University of São Paulo, as part of the requirements to obtain the title of Doctor of Science, Oceanography Program, Biological Oceanography area. Supervisor: Prof. Dr. Danilo L. Calliari São Paulo 2014 University of São Paulo Oceanographic Institute Biodiversity, distribution, feeding and trophic role of marine mysids (Crustacea, Peracarida, Mysida) Leonardo Kenji Miyashita Thesis submitted to the Oceanographic Institute of the University of São Paulo, as part of the requirements to obtain the title of Doctor of Science, Oceanography Program, Biological Oceanography area. Judged on ____/____/______, _______________________________ ______________ Prof. Dr. Danilo L. Calliari Grade _______________________________ ______________ Prof. Dr. Grade _______________________________ ______________ Prof. Dr. Grade _______________________________ ______________ Prof. Dr. Grade _______________________________ ______________ Prof. Dr. Grade i Acknowledgments I thank: the National Council for Scientific and Technological Development (CNPq, grants 142203/2010-6, 142050/2012-1, and 245466/2012-6) for the financial support; my amazing supervisor Danilo Calliari for the great orientation, even being distant you were always present when I needed your help; June F. Dias for all your help and kindness, without your support this work wouldn‘t be possible; J. Emmett Duffy for all your support and receptivity, even being very busy you accepted me as your student and welcomed me with open arms; Ana M. S. Pires-Vanin and Márcia R. Denadai for constructive comments on an earlier version of chapter 4; the anonymous reviewers for comments that improved chapters 2 and 4; Márcio H. Ohkawara, Márcio K. Yamashita, Miodeli Nogueira Jr., Naira J. Silva, Silvia A. Gonsales, and Viviane Cezar for assistance during sampling and laboratory analyses; J. Paul Richardson, S. Chak, J. Lefcheck, S. Bornbusch, E. French, K. Gadeken, D. Hall, and S. Ziegler for your help with the mesocosm experiments; J.P. Richardson for all your help during my stay in USA; Davi Secomandi, Luís C. da Silva, and Tomas E. da Silva for technical support; Mário Katsuragawa and Mônica Petti for allowing me to use the facilities of the Biological Collection Prof. E.F. Nonato; Ana Paula, Letícia and Silvana for your help; the staff of the Cananeia coastal station (IOUSP) for all the assistance; all the professors and employees of the Oceanographic Institute (IOUSP) that helped me during all these years; all my friends for your friendship and support; the love of my life, Wal Aquino, for your love, friendship and for being my inspiration; my family for all the support and for always being present in my life. ii Summary Index of figures ................................................................................................................. v Index of tables ................................................................................................................ vii Abstract .......................................................................................................................... viii Resumo ............................................................................................................................. x Chapter 1. Introduction ..................................................................................................... 1 1.1. References .......................................................................................................................... 4 Chapter 2. Revision of mysids (Crustacea: Peracarida: Mysida) zoogeographical distribution in the Southwest Atlantic (0° to 40°S) ......................................................... 11 Abstract ................................................................................................................................... 11 2.1. Introduction ...................................................................................................................... 11 2.2. Material and methods ....................................................................................................... 12 2.3. Results .............................................................................................................................. 13 2.4. Discussion ........................................................................................................................ 30 2.5. References ........................................................................................................................ 32 Chapter 3. Distribution, salinity tolerance and production of dominant mysids from the Cananeia-Iguape Coastal System, southeast Brazil ........................................................ 41 Abstract ................................................................................................................................... 41 3.1. Introduction ...................................................................................................................... 41 3.2. Methods ............................................................................................................................ 43 3.2.1. Study site ................................................................................................................... 43 3.2.2. Sample collection and analyses ................................................................................. 43 3.2.3. Salinity tolerance ....................................................................................................... 46 3.3. Results .............................................................................................................................. 47 3.3.1. Environmental variables ............................................................................................ 47 3.3.2. Zooplankton .............................................................................................................. 47 3.3.3. Mysids ....................................................................................................................... 48 3.3.4. Salinity tolerance ....................................................................................................... 50 iii 3.4. Discussion ........................................................................................................................ 50 3.5. Conclusions ...................................................................................................................... 57 3.6. References ........................................................................................................................ 57 Chapter 4. Species-specific and combined feeding rates and selectivity of dominant mysids from a subtropical estuary, Brazil ...................................................................... 62 Abstract ................................................................................................................................... 62 4.1. Introduction ...................................................................................................................... 62 4.2. Materials and Methods ..................................................................................................... 64 4.2.1. Study site ................................................................................................................... 64 4.2.2. Mysid sampling ......................................................................................................... 64 4.2.3. Feeding selectivity ..................................................................................................... 64 4.2.4. Functional response ................................................................................................... 66 4.2.5. Intraguild predation ................................................................................................... 67 4.3. Results .............................................................................................................................. 67 4.3.1. Feeding rates and selectivity ..................................................................................... 67 4.3.2. Functional response ................................................................................................... 69 4.3.3. Intraguild predation ................................................................................................... 70 4.4. Discussion ........................................................................................................................ 70 4.4.1. Feeding rates and selectivity ..................................................................................... 70 4.4.2. Functional response ................................................................................................... 72 4.4.3. Mysid species interaction .......................................................................................... 73 4.5. Conclusions ...................................................................................................................... 75 4.6. References ........................................................................................................................ 76 Chapter 5. Effects of predator species number and spatial heterogeneity on prey suppression ....................................................................................................................
Load more

Recommended publications
  • Xiphopenaeus Kroyeri
    unuftp.is Final Project 2018 Sustainable Management of Guyana’s Seabob (Xiphopenaeus kroyeri.) Trawl Fishery Seion Adika Richardson Ministry of Agriculture, Fisheries Department Co-operative Republic of Guyana [email protected] Supervisors: Dr. Pamela J. Woods Dr. Ingibjörg G. Jónsdóttir Marine and Freshwater Research Institute Iceland [email protected] [email protected] ABSTRACT Seabob (Xiphopenaeus kroyeri) is the most exploited shrimp species in Guyana and the largest seafood export. This species is mostly caught by seabob trawlers, sometimes with large quantities of bycatch. The goal of this paper is to promote the long-term sustainability of marine stocks impacted by this fishery, by analysing 1) shrimp stock status, 2) the current state of knowledge regarding bycatch impacts, and 3) spatial fishing patterns of seabob trawlers. To address the first, the paper discusses a stock assessment on Guyana`s seabob stock using the Stochastic Surplus Production Model in Continuous-Time (SPiCT). The model output suggests that the stock is currently in an overfished state, i.e., that the predicted Absolute Stock Biomass (Bt) for 2018 is four times smaller than the Biomass which yields Maximum Sustainable Yield at equilibrium (BMSY) and the current fishing mortality (Ft) is six times above the required to achieve Fishing Mortality which results in Maximum Sustainable Yield at equilibrium (FMSY). These results indicate a more overfished state than was generated by the previous stock assessment which concluded that the stock was fully exploited but not overfished (Medley, 2013).To address the second goal, the study linked catch and effort data with spatial Vessel Monitoring System (VMS) data to analyse the mixture of target and non-target species within the seabob fishery.
    [Show full text]
  • Redalyc.Isopods (Isopoda: Aegidae, Cymothoidae, Gnathiidae)
    Revista de Biología Tropical ISSN: 0034-7744 [email protected] Universidad de Costa Rica Costa Rica Bunkley-Williams, Lucy; Williams, Jr., Ernest H.; Bashirullah, Abul K.M. Isopods (Isopoda: Aegidae, Cymothoidae, Gnathiidae) associated with Venezuelan marine fishes (Elasmobranchii, Actinopterygii) Revista de Biología Tropical, vol. 54, núm. 3, diciembre, 2006, pp. 175-188 Universidad de Costa Rica San Pedro de Montes de Oca, Costa Rica Available in: http://www.redalyc.org/articulo.oa?id=44920193024 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Isopods (Isopoda: Aegidae, Cymothoidae, Gnathiidae) associated with Venezuelan marine fishes (Elasmobranchii, Actinopterygii) Lucy Bunkley-Williams,1 Ernest H. Williams, Jr.2 & Abul K.M. Bashirullah3 1 Caribbean Aquatic Animal Health Project, Department of Biology, University of Puerto Rico, P.O. Box 9012, Mayagüez, PR 00861, USA; [email protected] 2 Department of Marine Sciences, University of Puerto Rico, P.O. Box 908, Lajas, Puerto Rico 00667, USA; ewil- [email protected] 3 Instituto Oceanografico de Venezuela, Universidad de Oriente, Cumaná, Venezuela. Author for Correspondence: LBW, address as above. Telephone: 1 (787) 832-4040 x 3900 or 265-3837 (Administrative Office), x 3936, 3937 (Research Labs), x 3929 (Office); Fax: 1-787-834-3673; [email protected] Received 01-VI-2006. Corrected 02-X-2006. Accepted 13-X-2006. Abstract: The parasitic isopod fauna of fishes in the southern Caribbean is poorly known. In examinations of 12 639 specimens of 187 species of Venezuelan fishes, the authors found 10 species in three families of isopods (Gnathiids, Gnathia spp.
    [Show full text]
  • Feeding Habits of Centropomus Undecimalis (Actinopterygii, Centropomidae) in the Parnaíba River Delta, Piauí, Brazil
    Brazilian Journal of Development 39536 ISSN: 2525-8761 Feeding habits of Centropomus undecimalis (Actinopterygii, Centropomidae) in the Parnaíba river delta, Piauí, Brazil Alimentação do Centropomus undecimalis (Actinopterygii, Centropomidae) no estuário do delta do rio Parnaíba, Piauí, Brasil DOI:10.34117/bjdv7n4-423 Recebimento dos originais: 07/03/2021 Aceitação para publicação: 16/04/2021 José Rafael Soares Fonseca Doutorando em Recursos Pesqueiros e Engenharia de Pesca Programa de Pós-Graduação em Recursos Pesqueiros e Engenharia de Pesca, Centro de Engenharias e Ciências Exatas, Universidade Estadual do Oeste do Paraná – UNIOESTE, Rua da Faculdade, 645, 85903-000 – Toledo– PR – Brasil E-mail: [email protected] Cezar Augusto Freire Fernandes Doutorado em Recursos Pesqueiros e Aquicultura Universidade Federal do Delta do Parnaíba – UFDPAR, Av. São Sebastião, 2819 Bairro Nossa Senhora de Fátima– CEP: 64.202-020 – Parnaíba – PI – Brasil E-mail: [email protected] Francisca Edna de Andrade Cunha Doutorado em Ciências Biológicas Universidade Federal do Delta do Parnaíba – UFDPAR, Av. São Sebastião, 2819 Bairro Nossa Senhora de Fátima– CEP: 64.202-020 – Parnaíba – PI – Brasil E-mail: [email protected] ABSTRACT The objective of this work was to evaluate the feeding of Centropomus undecimalis in the estuary of the Parnaíba river delta, with emphasis on diet composition during seasonal variations between dry and rainy seasons. The samples were obtained from artisanal fishing with gillnets, from June 2014 - July 2015. The individuals were measured, weighed and dissected to remove the stomachs. The fish diet was analyzed using the methods: Gravimetric, Frequency of Occurrence, Dominance of the item and Food Index.
    [Show full text]
  • Trophic Ecology of Atlantic Seabob Shrimp Xiphopenaeus Kroyeri: Intertidal Benthic Microalgae Support the Subtidal Food Web Off Suriname
    Estuarine, Coastal and Shelf Science 182 (2016) 146e157 Contents lists available at ScienceDirect Estuarine, Coastal and Shelf Science journal homepage: www.elsevier.com/locate/ecss Trophic ecology of Atlantic seabob shrimp Xiphopenaeus kroyeri: Intertidal benthic microalgae support the subtidal food web off Suriname * Tomas Willems a, b, , Annelies De Backer a, Thomas Kerkhove a, b, Nyasha Nanseera Dakriet c, Marleen De Troch b, Magda Vincx b, Kris Hostens a a Institute for Agricultural and Fisheries Research (ILVO), Animal Sciences, Bio-Environmental Research group, Ankerstraat 1, B-8400, Oostende, Belgium b Ghent University, Department of Biology, Marine Biology, Krijgslaan 281 - S8, B-9000, Gent, Belgium c Anton De Kom University of Suriname, Faculty of Science and Technology, Leysweg 86, Postbus, 9212, Paramaribo, Suriname article info abstract Article history: A combination of stomach content analyses and dual stable isotope analyses was used to reveal the Received 21 October 2015 trophic ecology of Atlantic seabob shrimp Xiphopenaeus kroyeri off the coast of Suriname. This coastal Received in revised form penaeid shrimp species has a rather omnivorous diet, feeding opportunistically on both animal prey and 2 July 2016 primary food sources. The species is a predator of hyperbenthic crustaceans, including copepods, am- Accepted 22 September 2016 phipods and the luciferid shrimp Lucifer faxoni, which are mainly preyed upon during daytime, when Available online 23 September 2016 these prey typically reside near the seabed. Benthic microalgae (BM) from intertidal mudflats and offshore sedimentary organic matter (SOM) were important primary food sources. Due to their depleted Keywords: 13 Xiphopenaeus kroyeri C values, coastal sedimentary and suspended organic matter, and carbon from riverine and mangrove- Trophic ecology derived detritus were not incorporated by X.
    [Show full text]
  • Crustacea, Malacostraca)*
    SCI. MAR., 63 (Supl. 1): 261-274 SCIENTIA MARINA 1999 MAGELLAN-ANTARCTIC: ECOSYSTEMS THAT DRIFTED APART. W.E. ARNTZ and C. RÍOS (eds.) On the origin and evolution of Antarctic Peracarida (Crustacea, Malacostraca)* ANGELIKA BRANDT Zoological Institute and Zoological Museum, Martin-Luther-King-Platz 3, D-20146 Hamburg, Germany Dedicated to Jürgen Sieg, who silently died in 1996. He inspired this research with his important account of the zoogeography of the Antarctic Tanaidacea. SUMMARY: The early separation of Gondwana and the subsequent isolation of Antarctica caused a long evolutionary his- tory of its fauna. Both, long environmental stability over millions of years and habitat heterogeneity, due to an abundance of sessile suspension feeders on the continental shelf, favoured evolutionary processes of “preadapted“ taxa, like for exam- ple the Peracarida. This taxon performs brood protection and this might be one of the most important reasons why it is very successful (i.e. abundant and diverse) in most terrestrial and aquatic environments, with some species even occupying deserts. The extinction of many decapod crustaceans in the Cenozoic might have allowed the Peracarida to find and use free ecological niches. Therefore the palaeogeographic, palaeoclimatologic, and palaeo-hydrographic changes since the Palaeocene (at least since about 60 Ma ago) and the evolutionary success of some peracarid taxa (e.g. Amphipoda, Isopo- da) led to the evolution of many endemic species in the Antarctic. Based on a phylogenetic analysis of the Antarctic Tanaidacea, Sieg (1988) demonstrated that the tanaid fauna of the Antarctic is mainly represented by phylogenetically younger taxa, and data from other crustacean taxa led Sieg (1988) to conclude that the recent Antarctic crustacean fauna must be comparatively young.
    [Show full text]
  • Mysida and Lophogastrida of Greece: a Preliminary Checklist
    Biodiversity Data Journal 4: e9288 doi: 10.3897/BDJ.4.e9288 Taxonomic Paper Mysida and Lophogastrida of Greece: a preliminary checklist Panayota Koulouri‡, Vasilis Gerovasileiou‡‡, Nicolas Bailly ‡ Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, Greece Corresponding author: Panayota Koulouri ([email protected]) Academic editor: Christos Arvanitidis Received: 20 May 2016 | Accepted: 17 Jul 2016 | Published: 01 Nov 2016 Citation: Koulouri P, Gerovasileiou V, Bailly N (2016) Mysida and Lophogastrida of Greece: a preliminary checklist. Biodiversity Data Journal 4: e9288. https://doi.org/10.3897/BDJ.4.e9288 Abstract Background The checklist of Mysida and Lophogastrida of Greece was created within the framework of the Greek Taxon Information System (GTIS), which is one of the applications of the LifeWatchGreece Research Infrastructure (ESFRI) resuming efforts to develop a complete checklist of species recorded and reported from Greek waters. The objectives of the present study were to update and cross-check taxonomically all records of Mysida and Lophogastrida species known to occur in Greek waters in order to search for inaccuracies and omissions. New information The up-to-date checklist of Mysida and Lophogastrida of Greece comprises 49 species, classified to 25 genera. © Koulouri P et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 2 Koulouri P et al. Keywords Mysida, Lophogastrida, Greece, Aegean Sea, Sea of Crete, Ionian Sea, Eastern Mediterranean, checklist Introduction The peracarid crustaceans Lophogastrida, Stygiomysida and Mysida were formerly grouped under the order "Mysidacea".
    [Show full text]
  • Observations on the Kalliapseudid Tanaidacea (Crustacea: Malacostraca: Peracarida) from the Northwestern Atlantic, with an Illustrated Key to the Species
    Gulf and Caribbean Research Volume 22 Issue 1 2010 Observations on the Kalliapseudid Tanaidacea (Crustacea: Malacostraca: Peracarida) from the Northwestern Atlantic, with an Illustrated Key to the Species David T. Drumm University of Southern Mississippi Richard W. Heard University of Southern Mississippi, [email protected] Follow this and additional works at: https://aquila.usm.edu/gcr Part of the Marine Biology Commons Recommended Citation Drumm, D. T. and R. W. Heard. 2010. Observations on the Kalliapseudid Tanaidacea (Crustacea: Malacostraca: Peracarida) from the Northwestern Atlantic, with an Illustrated Key to the Species. Gulf and Caribbean Research 22 (1): 29-41. Retrieved from https://aquila.usm.edu/gcr/vol22/iss1/4 DOI: https://doi.org/10.18785/gcr.2201.04 This Article is brought to you for free and open access by The Aquila Digital Community. It has been accepted for inclusion in Gulf and Caribbean Research by an authorized editor of The Aquila Digital Community. For more information, please contact [email protected]. Gulf and Caribbean Research Vol 22, 29-41, 2010 Manuscript received November 12, 2009; accepted January 19, 2010 OBSERVATIONS ON THE KALLIAPSEUDID TANAIDACEA (CRUSTACEA: MALACOSTRACA: PERACARIDA) FROM THE NORTHWESTERN ATLANTIC, WITH AN ILLUSTRATED KEY TO THE SPECIES David T. Drumm and Richard W. Heard Department of Coastal Sciences, The University of Southern Mississippi, 703 East Beach Drive, Ocean Springs, MS 39564, e-mail: david.drumm@ usm.edu ABSTRACT: New information for the kalliapseudid Tanaidacea occurring in the northwestern Atlantic is presented and discussed, including data on range extensions and new depth ranges for 4 species. The taxa studied came from the shelf and coastal waters of the southeastern United States, Puerto Rico and Trinidad.
    [Show full text]
  • Visual Adaptations in Crustaceans: Chromatic, Developmental, and Temporal Aspects
    FAU Institutional Repository http://purl.fcla.edu/fau/fauir This paper was submitted by the faculty of FAU’s Harbor Branch Oceanographic Institute. Notice: ©2003 Springer‐Verlag. This manuscript is an author version with the final publication available at http://www.springerlink.com and may be cited as: Marshall, N. J., Cronin, T. W., & Frank, T. M. (2003). Visual Adaptations in Crustaceans: Chromatic, Developmental, and Temporal Aspects. In S. P. Collin & N. J. Marshall (Eds.), Sensory Processing in Aquatic Environments. (pp. 343‐372). Berlin: Springer‐Verlag. doi: 10.1007/978‐0‐387‐22628‐6_18 18 Visual Adaptations in Crustaceans: Chromatic, Developmental, and Temporal Aspects N. Justin Marshall, Thomas W. Cronin, and Tamara M. Frank Abstract Crustaceans possess a huge variety of body plans and inhabit most regions of Earth, specializing in the aquatic realm. Their diversity of form and living space has resulted in equally diverse eye designs. This chapter reviews the latest state of knowledge in crustacean vision concentrating on three areas: spectral sensitivities, ontogenetic development of spectral sen­ sitivity, and the temporal properties of photoreceptors from different environments. Visual ecology is a binding element of the chapter and within this framework the astonishing variety of stomatopod (mantis shrimp) spectral sensitivities and the environmental pressures molding them are examined in some detail. The quantity and spectral content of light changes dra­ matically with depth and water type and, as might be expected, many adaptations in crustacean photoreceptor design are related to this governing environmental factor. Spectral and temporal tuning may be more influenced by bioluminescence in the deep ocean, and the spectral quality of light at dawn and dusk is probably a critical feature in the visual worlds of many shallow-water crustaceans.
    [Show full text]
  • Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida, Tanaidacea) in a Tropical Coastal Lagoon, Itaipu, Southeastern Brazil
    POPULATION BIOLOGY AND REPRODUCTION OF KALLIAPSEUDES SCHUBARTII MAÑÉ-GARZÓN, 1949 (PERACARIDA, TANAIDACEA) IN A TROPICAL COASTAL LAGOON, ITAIPU, SOUTHEASTERN BRAZIL BY SIMONE PENNAFIRME1) and ABILIO SOARES-GOMES2,3) 1) Programa de Pós-Graduação em Biologia Marinha, Universidade Federal Fluminense, P.O. Box 100.644, Niterói, 24001-970 Brazil 2) Department of Marine Biology, Universidade Federal Fluminese, P.O. Box 100.644, Niterói, 24001-970 Brazil ABSTRACT A population of the tanaidacean, Kalliapseudes schubartii Mañé-Garzón, 1949 was sampled monthly in order to study its life cycle in a southeastern Brazilian tropical lagoon. The species’ density changed seasonally, increasing in the beginning of the wet season and presenting peaks following precipitation peaks in other periods. Density changed due to oscillations in numbers of larval stages and juveniles. Females were larger than males, and the size at onset of sexual maturity of females was 5.9 mm. The sex-ratio was female-skewed during all months, in accordance with studies of the same species at other sites along the Brazilian coast and on other species of tanaids. Ovigerous females and other developmental stages were observed in all samples. Peaks in the frequencies of larval stages and juveniles were followed by peaks in ovigerous female frequency. Comparisons of populations of K. schubartii at different sites along the Brazilian coast showed an intraspecific difference in their life cycles according to a latitudinal gradient, with longer reproductive activity occurring in the tropics. RÉSUMÉ [Les études de biologie des populations des espèces-proies fournissent des informations utiles pour la gestion de la ressource et aident à prévoir les changements à venir concernant les espèces exploitées commercialement.] Une population de tanaidacés Kalliapseudes schubartii Mañé-Garzón, 1949 a été échantillonnée mensuellement dans une lagune tropicale du sud-est du Brésil afin d’étudier son cycle de vie.
    [Show full text]
  • And Peracarida
    Contributions to Zoology, 75 (1/2) 1-21 (2006) The urosome of the Pan- and Peracarida Franziska Knopf1, Stefan Koenemann2, Frederick R. Schram3, Carsten Wolff1 (authors in alphabetical order) 1Institute of Biology, Section Comparative Zoology, Humboldt University, Philippstrasse 13, 10115 Berlin, Germany, e-mail: [email protected]; 2Institute for Animal Ecology and Cell Biology, University of Veterinary Medicine Hannover, Buenteweg 17d, D-30559 Hannover, Germany; 3Dept. of Biology, University of Washington, Seattle WA 98195, USA. Key words: anus, Pancarida, Peracarida, pleomeres, proctodaeum, teloblasts, telson, urosome Abstract Introduction We have examined the caudal regions of diverse peracarid and The variation encountered in the caudal tagma, or pancarid malacostracans using light and scanning electronic posterior-most body region, within crustaceans is microscopy. The traditional view of malacostracan posterior striking such that Makarov (1978), so taken by it, anatomy is not sustainable, viz., that the free telson, when present, bears the anus near the base. The anus either can oc- suggested that this region be given its own descrip- cupy a terminal, sub-terminal, or mid-ventral position on the tor, the urosome. In the classic interpretation, the telson; or can be located on the sixth pleomere – even when a so-called telson of arthropods is homologized with free telson is present. Furthermore, there is information that the last body unit in Annelida, the pygidium (West- might be interpreted to suggest that in some cases a telson can heide and Rieger, 1996; Grüner, 1993; Hennig, 1986). be absent. Embryologic data indicates that the condition of the body terminus in amphipods cannot be easily characterized, Within that view, the telson and pygidium are said though there does appear to be at least a transient seventh seg- to not be true segments because both structures sup- ment that seems to fuse with the sixth segment.
    [Show full text]
  • Describing Species
    DESCRIBING SPECIES Practical Taxonomic Procedure for Biologists Judith E. Winston COLUMBIA UNIVERSITY PRESS NEW YORK Columbia University Press Publishers Since 1893 New York Chichester, West Sussex Copyright © 1999 Columbia University Press All rights reserved Library of Congress Cataloging-in-Publication Data © Winston, Judith E. Describing species : practical taxonomic procedure for biologists / Judith E. Winston, p. cm. Includes bibliographical references and index. ISBN 0-231-06824-7 (alk. paper)—0-231-06825-5 (pbk.: alk. paper) 1. Biology—Classification. 2. Species. I. Title. QH83.W57 1999 570'.1'2—dc21 99-14019 Casebound editions of Columbia University Press books are printed on permanent and durable acid-free paper. Printed in the United States of America c 10 98765432 p 10 98765432 The Far Side by Gary Larson "I'm one of those species they describe as 'awkward on land." Gary Larson cartoon celebrates species description, an important and still unfinished aspect of taxonomy. THE FAR SIDE © 1988 FARWORKS, INC. Used by permission. All rights reserved. Universal Press Syndicate DESCRIBING SPECIES For my daughter, Eliza, who has grown up (andput up) with this book Contents List of Illustrations xiii List of Tables xvii Preface xix Part One: Introduction 1 CHAPTER 1. INTRODUCTION 3 Describing the Living World 3 Why Is Species Description Necessary? 4 How New Species Are Described 8 Scope and Organization of This Book 12 The Pleasures of Systematics 14 Sources CHAPTER 2. BIOLOGICAL NOMENCLATURE 19 Humans as Taxonomists 19 Biological Nomenclature 21 Folk Taxonomy 23 Binomial Nomenclature 25 Development of Codes of Nomenclature 26 The Current Codes of Nomenclature 50 Future of the Codes 36 Sources 39 Part Two: Recognizing Species 41 CHAPTER 3.
    [Show full text]
  • Invertebrate ID Guide
    11/13/13 1 This book is a compilation of identification resources for invertebrates found in stomach samples. By no means is it a complete list of all possible prey types. It is simply what has been found in past ChesMMAP and NEAMAP diet studies. A copy of this document is stored in both the ChesMMAP and NEAMAP lab network drives in a folder called ID Guides, along with other useful identification keys, articles, documents, and photos. If you want to see a larger version of any of the images in this document you can simply open the file and zoom in on the picture, or you can open the original file for the photo by navigating to the appropriate subfolder within the Fisheries Gut Lab folder. Other useful links for identification: Isopods http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-33/htm/doc.html http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-48/htm/doc.html Polychaetes http://web.vims.edu/bio/benthic/polychaete.html http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-34/htm/doc.html Cephalopods http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-44/htm/doc.html Amphipods http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-67/htm/doc.html Molluscs http://www.oceanica.cofc.edu/shellguide/ http://www.jaxshells.org/slife4.htm Bivalves http://www.jaxshells.org/atlanticb.htm Gastropods http://www.jaxshells.org/atlantic.htm Crustaceans http://www.jaxshells.org/slifex26.htm Echinoderms http://www.jaxshells.org/eich26.htm 2 PROTOZOA (FORAMINIFERA) ................................................................................................................................ 4 PORIFERA (SPONGES) ............................................................................................................................................... 4 CNIDARIA (JELLYFISHES, HYDROIDS, SEA ANEMONES) ............................................................................... 4 CTENOPHORA (COMB JELLIES)............................................................................................................................
    [Show full text]