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Investigating Reproductive Strategies
Teacher Guide Investigating Reproductive Strategies Abstract Students work in pairs to compare five aspects of an organism that reproduces sexually with one that reproduces asexually. As a class, students share their comparisons and generate a list of gener- al characteristics for each mode of reproduction, and discuss the advantages and disadvantages of both. Learning Objectives • There are two modes of reproduction, sexual and asexual. • There are advantages and disadvantages to both sexual and asexual reproduction. Estimated time • Class time 50 minutes • Prep time 10 minutes Materials Copies of student pages Instructions 1. Divide students into pairs. 2. Hand each pair: • The Investigating Reproductive Strategies worksheet • 2 organism descriptions - one for an organism that reproduces sexually and one for an organ- ism that reproduces either asexually or using both strategies - (see chart below). Sexual Asexual Both Sexual and Asexual Reproductive Blue-headed wrasse Amoeba Brittle star strategies Duck leech Salmonella Meadow garlic used by organisms Grizzly bear Whiptail Lizard Spiny water fleas described in Leafy sea dragon this activity Red kangaroo Sand scorpion 3. Instruct each pair to read about their assigned organisms and complete the comparison table on the Investigating Reproductive Strategies worksheet. 4. When all pairs have completed the comparison table, have them post their tables around the room. © 2020 University of Utah Updated July 29, 2020 1 5. Ask students to walk around the room and read the comparison tables with the goal of creating a list of general characteristics for organisms that reproduce sexually and one for organisms that reproduce asexually. 6. As a class, compile lists of general characteristics for organisms that reproduce sexually and asexually on the board. -
Page 1 ,0 • , • .. ' • .. " . • COMMUNITY STRUCTURE of SHALLOW
, .. ". ,• ., • / .. ' ." • COMMUNITY STRUCTURE OF SHALLOW-WATER OPHIUROIDEA. ,0 • " . , 1 • • , " ,of,. , . \ , .... " .. / .. ,<1' • , "" :.,..>'--- ~ . ".. \ • McGill Un.wersi ty COMMUNITY STRIJC'ruP.E OF SHALLOW-WATER OPHIUROIDEA 1 OF BARaADOS, WEST Il-.'DIES. ~by \ Richard D. Bray , -' ~ , , • :,,' \ A thesis sub~itted to the faculty of Graduate Studies and ~. Research in partial fulfillment of the requirements """S " for the degree ~of Master of Science in the Marine Sciences Centre J Montreal, Quebec March, f975 ,", - '.. ,i . ", . ® Richard D. Bray 1975 :"t' • ABSTRACT , , This study investigated the ~unity structure of cryptic, coral reef d~ell1n9 oph1uroids in terrns vf habitat, species com- po~ition, abundance, and species diversity patterns. Three s~ ~ ling sites were examined and compared~ f~ging reef, shallow " rubble zone, and outer reef bank. A total of 27 species from 10 families was collected from the three sites. Eleven of these spe cies were additions to the reported ophiurdid fauna of Bariados ,,1 and the other islands of the Windward group. On the fringing reef four habitat types were distinguished: 1) sand or limèstone platform/ 2) reef area with greater than 50\ living coral coverage, 3) reet area with less than 50\ living coral . ~overage, and 4) rubble. There was an increase in species d1versity and a decrease in mean ophiuroid density with decreasing spatial heterogeneity. It was observed that the dominant reef ophiuroids vere suspension feeders, rather than bottOM, detritus f~eders. Most brittle-star species were generalfstsjn their choice of substrate. / a&: aSJ .- CI • ......;' .- ~., . .....~ ,> '.\ , '" { RESUME Cette étude porte sur la structure oes communautés d'ophiures ~ryptiques habitant les récifs de coraux: niches écologiques, com position des. -
Jacksonville, Florida 1998 Odmds Benthic Community Assessment
JACKSONVILLE, FLORIDA 1998 ODMDS BENTHIC COMMUNITY ASSESSMENT Submitted to U.S. Environmental Protection Agency, Region 4 61 Forsyth St. Atlanta, Georgia 30303 Prepared by Barry A. Vittor & Associates, Inc. 8060 Cottage Hill Rd. Mobile, Alabama 36695 (334) 633-6100 November 1999 TABLE OF CONTENTS LIST OF TABLES ………………………………………….……………………………3 LIST OF FIGURES ……………………..………………………………………………..4 1.0 INTRODUCTION ………..…………………………………………………………..5 2.0 METHODS ………..…………………………………………………………………..5 2.1 Sample Collection And Handling ………………………………………………5 2.2 Macroinfaunal Sample Analysis ……………………………………………….6 3.0 DATA ANALYSIS METHODS ……..………………………………………………6 3.1 Assemblage Analyses ..…………………………………………………………6 3.2 Faunal Similarities ……………………………………………………….…….8 4.0 HABITAT CHARACTERISTICS ……………………………………………….…8 5.0 BENTHIC COMMUNITY CHARACTERIZATION ……………………………..9 5.1 Faunal Composition, Abundance, And Community Structure …………………9 5.2 Numerical Classification Analysis …………………………………………….10 5.3 Taxa Assemblages …………………………………………………………….11 6.0 1995 vs 1998 COMPARISONS ……………………………………………………..11 7.0 SUMMARY ………………………………………………………………………….13 8.0 LITERATURE CITED ……………………………………………………………..16 2 LIST OF TABLES Table 1. Station locations for the Jacksonville, Florida ODMDS, June 1998. Table 2. Sediment data for the Jacksonville, Florida ODMDS, June 1998. Table 3. Summary of abundance of major taxonomic groups for the Jacksonville, Florida ODMDS, June 1998. Table 4. Abundance and distribution of major taxonomic groups at each station for the Jacksonville, Florida ODMDS, June 1998. Table 5. Abundance and distribution of taxa for the Jacksonville, Florida ODMDS, June 1998. Table 6. Percent abundance of dominant taxa (> 5% of the total assemblage) for the Jacksonville, Florida ODMDS, June 1998. Table 7. Summary of assemblage parameters for the Jacksonville, Florida ODMDS stations, June 1998. Table 8. Analysis of variance table for density differences between stations for the Jacksonville, Florida ODMDS stations, June 1998. -
The Ciliate Orchitophrya Stellarum Viewed As a Facultative Parasite of Asteriid Sea Stars
Cah. Biol. Mar. (2007) 48 : 9-16 The ciliate Orchitophrya stellarum viewed as a facultative parasite of asteriid sea stars William B. STICKLE1, Eugene N. KOZLOFF2* and Margaret C. HENK1 (1) Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, 70803-1715, USA (2) Friday Harbor Laboratories, University of Washington, Friday Harbor, WA, 98250, USA *Corresponding author: Fax: (1) 206 543 1273. E-mail: [email protected] Abstract: Orchitophrya stellarum Cépède, 1907 is a ciliate that consumes sperm in the testes of male asteriid sea stars in the Pacific and North Atlantic oceans. Previous studies have reported its presence in smears and sections of testes, and we have also observed it in the spawn. This organism is easily cultured in seawater containing bacteria nourished by yeast extract or tissues from various marine invertebrates and the domestic chicken. During adaptation to culture conditions, the ciliates become smaller, the number of kineties is reduced, and the buccal cavity is shifted farther away from the anterior end. These changes are reversed if the ciliates are fed sperm of asteriid sea stars. Orchitophrya stellarum is therefore consi- dered to be a facultative parasite that can live indefinitely in situations where it can feed on bacteria and tissue detritus. It probably enters the testes of reproductively mature male sea stars by way of the gonopores. Resumé : Le cilié Orcitophyra stellarum vu comme un parasite possible des étoiles de mer astériide. Le cilié Orchitophrya stellarum Cépède, 1907, parfois trouvé dans les étoiles de mer asterides mâles dans les océans Pacifique et Atlantique Nord, se nourrit de spermatozoïdes. -
Biogeographic Processes in the Southern Ocean Thomas Saucède, Benjamin Pierrat, Bruno Danis, Bruno David
Biogeographic processes in the Southern Ocean Thomas Saucède, Benjamin Pierrat, Bruno Danis, Bruno David To cite this version: Thomas Saucède, Benjamin Pierrat, Bruno Danis, Bruno David. Biogeographic processes in the Southern Ocean. C. De Broyer, P. Koubbi et al. Biogeographic Atlas of the Southern Ocean, Scientific Committee on Antarctic Research, pp.456-463, 2014, 978-0-948277-28-3. hal-01059473 HAL Id: hal-01059473 https://hal.archives-ouvertes.fr/hal-01059473 Submitted on 2 Feb 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution - NonCommercial| 4.0 International License Census of Antarctic Marine Life SCAR-Marine Biodiversity Information Network BIOGEOGRAPHIC ATLAS OF THE SOUTHERN OCEAN CHAPTER 10.8. BIOGEOGRAPHIC PROCESSES IN THE SOUTHERN OCEAN. Saucède T., Pierrat B., Danis B., David B., 2014. In: De Broyer C., Koubbi P., Griffiths H.J., Raymond B., Udekem d’Acoz C. d’, et al. (eds.). Biogeographic Atlas of the Southern Ocean. Scientific Committee on Antarctic Research, Cambridge, pp. 456-463. -
Translation 3204
4 of 6 I' rÉ:1°.r - - - Ï''.ec.n::::,- - — TRANSLATION 3204 and Van, else--- de ,-0,- SERIES NO(S) ^4p €'`°°'°^^`m`^' TRANSLATION 3204 5 of 6 serceaesoe^nee SERIES NO.(S) serv,- i°- I' ann., Canada ° '° TRANSLATION 3204 6 of 6 SERIES NO(S) • =,-""r I FISHERIES AND MARINE SERVICE ARCHIVE:3 Translation Series No. 3204 Multidisciplinary investigations of the continental slope in the Gulf of Alaska area by Z.A. Filatova (ed.) Original title: Kompleksnyye issledovaniya materikovogo sklona v raione Zaliva Alyaska From: Trudy Instituta okeanologii im. P.P. ShirshoV (Publications of the P.P. Shirshov Oceanpgraphy Institute), 91 : 1-260, 1973 Translated by the Translation Bureau(HGC) Multilingual Services Division Department of the Secretary of State of Canada Department of the Environment Fisheries and Marine Service Pacific Biological Station Nanaimo, B.C. 1974 ; 494 pages typescriPt "DEPARTMENT OF THE SECRETARY OF STATE SECRÉTARIAT D'ÉTAT TRANSLATION BUREAU BUREAU DES TRADUCTIONS MULTILINGUAL SERVICES DIVISION DES SERVICES DIVISION MULTILINGUES ceÔ 'TRANSLATED FROM - TRADUCTION DE INTO - EN Russian English Ain HOR - AUTEUR Z. A. Filatova (ed.) ri TL E IN ENGLISH - TITRE ANGLAIS Multidisciplinary investigations of the continental slope in the Gulf of Aâaska ares TI TLE IN FORE I GN LANGuAGE (TRANS LI TERA TE FOREIGN CHARACTERS) TITRE EN LANGUE ÉTRANGÈRE (TRANSCRIRE EN CARACTÈRES ROMAINS) Kompleksnyye issledovaniya materikovogo sklona v raione Zaliva Alyaska. REFERENCE IN FOREI GN LANGUAGE (NAME: OF BOOK OR PUBLICATION) IN FULL. TRANSLI TERATE FOREIGN CHARACTERS, RÉFÉRENCE EN LANGUE ÉTRANGÈRE (NOM DU LIVRE OU PUBLICATION), AU COMPLET, TRANSCRIRE EN CARACTÈRES ROMAINS. Trudy Instituta okeanologii im. P.P. -
Final Study Report
OCS Study BOEMRE 2010-05 Multi-Agency Rocky Intertidal Network (MARINe) Study of Rocky Intertidal Communities Adjacent to OCS Activities – Final report (2007-2010) Final Technical Summary Final Study Report U.S. Department of the Interior BOEMRE Bureau of Ocean Energy Management, Regulation and Enforcement Pacific OCS Region OCS Study BOEMRE 2010-05 Multi-Agency Rocky Intertidal Network (MARINe) Study of Rocky Intertidal Communities Adjacent to OCS Activities – Final report (2007-2010) Final Technical Summary Final Study Report Project Manager Peter T. Raimondi Principal Investigators Richard Ambrose Jack Engle Steve Murray Jayson Smith Study design, oversight, and funding were provided by the U.S. Department of the Interior, Bureau of Ocean Energy Management, Regulation and Enforcement, Environmental Studies Program, Washington, DC under Agreement Number M07AC12503 by Center for Ocean Health Long Marine Laboratory University of California Santa Cruz, CA 93106 Disclaimer This report has been reviewed by the Pacific Outer Continental Shelf Region, Bureau of Ocean Energy Management, Regulation and Enforcement, U.S. Department of the Interior and approved for publication. The opinions, findings, conclusions, and recommendations in this report are those of the authors, and do not necessarily reflect the views and policies of the Bureau of Ocean Energy Management, Regulation and Enforcement. Mention of trade names or commercial products does not constitute an endorsement or recommendation for use. This report has not been edited for conformity with Bureau of Ocean Energy Management, Regulation and Enforcement editorial standards. Availability of Report Extra copies of the report may be obtained from: U.S. Dept. of the Interior Bureau of Ocean Energy Management, Regulation and Enforcement Pacific OCS Region 770 Paseo Camarillo Camarillo, CA 93010 Phone: 805-389-7621 Suggested Citation The suggested citation for this report is: Raimondi, P.T. -
Late Cretaceous Echinoids from the Seymareh Member (Lopha Limestone Member), Kabir Kuh Anticline, Southwest of Iran
Archive of SID Geopersia 9 (2), 2019, PP. 305-350 DOI: 10.22059/GEOPE.2019.266795.648419 Late Cretaceous Echinoids from the Seymareh Member (Lopha Limestone Member), Kabir Kuh Anticline, Southwest of Iran Hossein Kamyabi Shadan1*, Hooshang Dashtban1, Bagher Roshandel Arbatani1, Fariba Foroughi2 1 Exploration Directorate, National Iranian Oil Company, Tehran, Iran 2 Department of Geology, Faculty of Sciences, University of Tehran, Tehran, Iran *Corresponding author, e–mail: [email protected] (received: 18/11/2018 ; accepted: 04/03/2019) Abstract In the present study, The Seymareh or Lopha Limestone Member (Gurpi Formation) in Kabir Kuh Section, have been Selected. The member has yielded a rich echinoid fauna and 21 species of Echinoid belonging to 14 genera are recognized and described. The Kabir Kuh section yielded two regular echinoid taxa: Salenia nutrix and Goniopygus superbus, one holectypoid taxa: Coptodiscus noemiae, two conulid taxa: Conulus douvillei and Globator bleicheri, six cassiduloid taxa: Parapygus longior, Parapygus declivis, Parapygus inflatus, Parapygus vassilini, Vologesia tataosi and Pygurostoma morgani, one holasteroid species: Hemipneustes persicus and nine spatangoid taxa: Iraniaster douvillei, I. morgani, I. nodulosus, Hemiaster noemiae, Hemiaster opimus, Mecaster kanepanensis, Mecaster longus, Proraster morgani and Epiaster lamberti. The taxon association indicates a Campanian age. Some of the taxa are known from the similar Campanian age in Saudi Arabia such as: Coptodiscus noemiae. Some specimens are reported also from Campanian deposits of Afghanistan such as: Hemiaster noemiae, H. opimus and Parapygus vassilini. Globator bleicheri and Salenia nutrix are recorded from Maastrichtian deposits of UAE and Oman. Keywords: Campanian, Echinoid, Kabir Kuh, Seymareh member, Southwest Iran. Introduction Acropeltidae, Holectypidae, Conulidae, Cassiduloida Echinoids are among the most conspicuous and , Holasteroid and Spatangoida. -
Modèles De Distribution Et Changements Environnementaux : Application Aux Faunes D’Échinides De L’Océan Austral Et Écorégionalisation Salome Fabri-Ruiz
Modèles de distribution et changements environnementaux : Application aux faunes d’échinides de l’océan Austral et écorégionalisation Salome Fabri-Ruiz To cite this version: Salome Fabri-Ruiz. Modèles de distribution et changements environnementaux : Application aux faunes d’échinides de l’océan Austral et écorégionalisation. Biodiversité et Ecologie. Université Bour- gogne Franche-Comté; Université libre de Bruxelles (1970-..), 2018. Français. NNT : 2018UBFCK070. tel-02063427 HAL Id: tel-02063427 https://tel.archives-ouvertes.fr/tel-02063427 Submitted on 11 Mar 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. UNIVERSITÉ DE BOURGOGNE FRANCHE-COMTÉ École Doctorale n°554 – Environnement Santé UNIVERSITÉ LIBRE DE BRUXELLES Faculté des Sciences THÈSE DE DOCTORAT EN SCIENCE DE LA VIE 2018 Salomé Fabri-Ruiz Modèles de distribution et changements environnementaux : Application aux faunes d’échinides de l’océan Austral et écorégionalisation Sous la direction de Thomas Saucède et de Bruno Danis 1 2 Modèles de distribution et changements environnementaux -
Epibenthic Mobile Invertebrates Along the Florida Reef Tract: Diversity and Community Structure Kristin Netchy University of South Florida, [email protected]
University of South Florida Scholar Commons Graduate Theses and Dissertations Graduate School 3-21-2014 Epibenthic Mobile Invertebrates along the Florida Reef Tract: Diversity and Community Structure Kristin Netchy University of South Florida, [email protected] Follow this and additional works at: https://scholarcommons.usf.edu/etd Part of the Ecology and Evolutionary Biology Commons, Other Education Commons, and the Other Oceanography and Atmospheric Sciences and Meteorology Commons Scholar Commons Citation Netchy, Kristin, "Epibenthic Mobile Invertebrates along the Florida Reef Tract: Diversity and Community Structure" (2014). Graduate Theses and Dissertations. https://scholarcommons.usf.edu/etd/5085 This Thesis is brought to you for free and open access by the Graduate School at Scholar Commons. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Scholar Commons. For more information, please contact [email protected]. Epibenthic Mobile Invertebrates along the Florida Reef Tract: Diversity and Community Structure by Kristin H. Netchy A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science Department of Marine Science College of Marine Science University of South Florida Major Professor: Pamela Hallock Muller, Ph.D. Kendra L. Daly, Ph.D. Kathleen S. Lunz, Ph.D. Date of Approval: March 21, 2014 Keywords: Echinodermata, Mollusca, Arthropoda, guilds, coral, survey Copyright © 2014, Kristin H. Netchy DEDICATION This thesis is dedicated to Dr. Gustav Paulay, whom I was fortunate enough to meet as an undergraduate. He has not only been an inspiration to me for over ten years, but he was the first to believe in me, trust me, and encourage me. -
Echinodermata) and Their Permian-Triassic Origin
Molecular Phylogenetics and Evolution 66 (2013) 161-181 Contents lists available at SciVerse ScienceDirect FHYLÖGENETICS a. EVOLUTION Molecular Phylogenetics and Evolution ELSEVIER journal homepage:www.elsevier.com/locate/ympev Fixed, free, and fixed: The fickle phylogeny of extant Crinoidea (Echinodermata) and their Permian-Triassic origin Greg W. Rouse3*, Lars S. Jermiinb,c, Nerida G. Wilson d, Igor Eeckhaut0, Deborah Lanterbecq0, Tatsuo 0 jif, Craig M. Youngg, Teena Browning11, Paula Cisternas1, Lauren E. Helgen-1, Michelle Stuckeyb, Charles G. Messing k aScripps Institution of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, CA 92093, USA b CSIRO Ecosystem Sciences, GPO Box 1700, Canberra, ACT 2601, Australia c School of Biological Sciences, The University of Sydney, NSW 2006, Australia dThe Australian Museum, 6 College Street, Sydney, NSW 2010, Australia e Laboratoire de Biologie des Organismes Marins et Biomimétisme, University of Mons, 6 Avenue du champ de Mars, Life Sciences Building, 7000 Mons, Belgium fNagoya University Museum, Nagoya University, Nagoya 464-8601, Japan s Oregon Institute of Marine Biology, PO Box 5389, Charleston, OR 97420, USA h Department of Climate Change, PO Box 854, Canberra, ACT 2601, Australia 1Schools of Biological and Medical Sciences, FI 3, The University of Sydney, NSW 2006, Sydney, Australia * Department of Entomology, NHB E513, MRC105, Smithsonian Institution, NMNH, P.O. Box 37012, Washington, DC 20013-7012, USA k Oceanographic Center, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, FL 33004, USA ARTICLE INFO ABSTRACT Añicle history: Although the status of Crinoidea (sea lilies and featherstars) as sister group to all other living echino- Received 6 April 2012 derms is well-established, relationships among crinoids, particularly extant forms, are debated. -
Encrinus Liliiformis (Echinodermata: Crinoidea)
RESEARCH ARTICLE Computational Fluid Dynamics Analysis of the Fossil Crinoid Encrinus liliiformis (Echinodermata: Crinoidea) Janina F. Dynowski1,2, James H. Nebelsick2*, Adrian Klein3, Anita Roth-Nebelsick1 1 Staatliches Museum für Naturkunde Stuttgart, Stuttgart, Germany, 2 Fachbereich Geowissenschaften, Eberhard Karls Universität Tübingen, Tübingen, Germany, 3 Institut für Zoologie, Rheinische Friedrich- Wilhelms-Universität Bonn, Bonn, Germany * [email protected] a11111 Abstract Crinoids, members of the phylum Echinodermata, are passive suspension feeders and catch plankton without producing an active feeding current. Today, the stalked forms are known only from deep water habitats, where flow conditions are rather constant and feeding OPEN ACCESS velocities relatively low. For feeding, they form a characteristic parabolic filtration fan with their arms recurved backwards into the current. The fossil record, in contrast, provides a Citation: Dynowski JF, Nebelsick JH, Klein A, Roth- Nebelsick A (2016) Computational Fluid Dynamics large number of stalked crinoids that lived in shallow water settings, with more rapidly Analysis of the Fossil Crinoid Encrinus liliiformis changing flow velocities and directions compared to the deep sea habitat of extant crinoids. (Echinodermata: Crinoidea). PLoS ONE 11(5): In addition, some of the fossil representatives were possibly not as flexible as today’s cri- e0156408. doi:10.1371/journal.pone.0156408 noids and for those forms alternative feeding positions were assumed. One of these fossil Editor: Stuart Humphries, University of Lincoln, crinoids is Encrinus liliiformis, which lived during the middle Triassic Muschelkalk in Central UNITED KINGDOM Europe. The presented project investigates different feeding postures using Computational Received: August 24, 2015 Fluid Dynamics to analyze flow patterns forming around the crown of E.