DOCSLIB.ORG

SPECIAL SCIENTIFIC REPORT- FISHERIES No

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
SPECIAL SCIENTIFIC REPORT- FISHERIES No . CONTRIBUTIONS TO THE STUDY OF SUBPOPULATIONS OF FISHES MarineLIBRARYBiological Laboratory 0C T 1 6 1957 WOODS HOLE, MASS. SPECIAL SCIENTIFIC REPORT- FISHERIES No. 208 UNITED STATES DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE SERVICE . EXPLANATORY NOTE The series embodies results of investigations, usually of restricted scope, intended to aid or direct management or utilization practices .and as guides for administrative or legislative action. It is issued in limited quantities for official use of Federal, State or cooperating agencies and in processed form for economy and to avoid delay in publication The following collection of papers entitled "Contributions to the Study of Subpopulations of Fishes" is a written symposium by members and former members of the Branch of Fishery Biology. It is a substitute for a conference, thus lacking the discussion which is so often stimulating and which contributes to the development of a general consensus which did not exist among the group when the papers were written. The advantage of more leisurely preparation, of not having to meet a deadline, such as a meeting date, may outweigh the lack of debate, however, for although all of the men were engaged in active research, the subjects of some of the papers were collateral to the principal lines of work of some of them at the time of preparation. The papers were written voluntarily on invitation, rather than by assignment as an official function, and thus partake of the nature of contributions to some journal of marine fishery biology (now non- existent). If there is a spontaneous demand for a written symposium upon timely subjects in the future, the Special Scientific Report: --Fisheries, being of a less permanent or formal nature than the older printed publica- tions of the Service, may offer its pages again under a rotating editorship for the symposium issues. United States Department of the Interior, Fred A. Seaton, Secretary Fish and Wildlife Service CONTRIBUTIONS TO THE STUDY OF SUBPOPULATIONS OF FISHES Coordinated by John C . Marr Fishery Research Biologist Special Scientific Report--Fisheries No. 208 Washington, D. C. April 1957 . CONTENTS Page The problem of defining and recognizing subpopulations of fishes. John C . Marr 1 Statistical comparison of morphological data. William F . Royce 7 Measurement of population movement by observation of meristic or morphometric characters. T . M . Widrig and Bruce A . Taft 29 A review of paper chromatography as used in systematics. David A . Farris 35 The use of immunological techniques in racial studies. George J . Ridgway 39 A review of recent studies of subpopulations of Pacific fishes. Elbert H . Ahlstrom 44 Races of cutthroat trout in Yellowstone Lake. Oliver B . Cope 74 Populations of the striped bass, Roccus saxatilis (Walbaum) in tributaries of Chesapeake Bay. Edward C . Raney 85 The subpopulation problem in the Pacific sardine, Sardinops caerulea . John C . Marr 108 Disease resistant and susceptible populations of broorc trout (Salvelinus fontinalis) S . F . SnieszKO 126 Note on the subpopulations of lake trout in the Great Lax;es. Paul H. Eschmeyer 129 . THE PROBLEM OF DEFINING AND RECOGNIZING SUBPOPULATIONS OF FISHES By John C . Marr— INTRODUCTION Stock: A stock is a population or a por- tion of a population, all members of which are In trying to identify and measure the characterized by similarities which are not causes of fluctuations in the abundance and dis- heritable, but are induced by the environment. tribution of a species of fish, it is essential A stock may or may not include members of that the number and identity of subpopulations, several different subpopulations if any, within the species be established, since each subpopulation may have its own character- Group: A group is a fraction of a popula- istic distribution, fecundity, natural mortality tion with distinctive characteristics, the nature rate, growth rate. etc. This statement (or of which (phenotypic or genotypic) has not yet others li.<e it) is practically axiomatic in the been determined. field of fishery biology, and yet, there is some misunderstanding arising in part from semantic Race: I prefer not to use this term, difficulties and in part from the lacK of agreed since in other fields (ornithology, for example) definitions of problems. it is a synonym of subspecies. The categories involved in fishery problems are generally of The semantic difficulties are those of the lesser rank than a subspecies; if not, they should same term being used with different meanings be recognized as such . by different workers, different terms being used with the same meaning, etc., often with no defin- Although it might be desirable to stand- itions given. The terms which I will use may be ardize on this or some other set of terms, this defined as follows: is not essential so long as everyone defines whatever terms he does use. Population : A population of fish includes all individuals of a given species when there The important distinction to keep in mind are no subspecies or, if there are subspecies, between subpopulation and stock is that members when their distributions are not discrete. It in- of a subpopulation segregate at spawning time, cludes only all individuals of a subspecies when whereas members of a stock need not. It is also the distributions of the subspecies are discrete. important to remember that members of a group Obviously, there is gene flow, or opportunity actually are members of either a subpopulation for such, throughout a population. or a stock, but cannot be assigned to one or the other category because of lack of information. Subpopulation : A subpopulation is a frac- The partial barriers to gene flow between sub- tion of a population that is itself genetically populations are of the same nature as those be- self-sustaining. It is the smallest natural self- tween subspecies and include isolation in space, perpetuating unit and is synonymous with the isolation in time and ecological isolation. term "deme" as used by systematists (Huxley, Evolution the modern synthesis, New York, 1942: The "subpopulation problem, " then, in- 203). Although differences between subpopula- volves first, the recognition and definition of tions may be small, they are heritable each subpopulation and second, the planning of biological observations such that the data accrue 1/ Chief, South Pacific Fishery Investigations, discretely for each subpopulation rather than by U.S. Fish and Wildlife Service, P.O. Box 271, groups of subpopulations. If observations are La Jolla, California planned in such a manner that data accrue . discretely for each stock, little if anything will The use of anatomical characteristics in be learned about subpopulations and, in fact, if defining and describing subpopulations has at the concepts of stock and subpopulation are con- least two limitations. First, it is well known fused the investigator may be very seriously from both empirical and experimental evidence misled. On the other hand, the characteristics that body form, numbers of vertebrae, etc., of a stock may well serve as natural tags and be are influenced by environmental variables (such of great value in the study of availability phenom- as food and temperature, for example) . Ob- ena . It is a fair generality to state that whereas viously, then, in using such characteristics the most fishery biologists have been interested in risk exists of studying the effects of environ- defining subpopulations, they have, in fact, most mental conditions rather than the effects of frequently idefined stocks or groups. This may genetic isolation. Second, even if the character- be avoided only by using characteristics Known istics used are genotypic, their frequency to be genotypic or by using a more direct ex- distributions generally overlap, often to a large perimental method such as tagging. degree. If significant differences are found be- tween the samples, these have usually been METHODS interpreted as indicating that the two samples were drawn from two distinct subpopulations. A number of diverse methods have been, Actually, this indicates only that they were not or could be, used in subpopulation studies. Any both drawn from the identical population; the classification or listing of the various methods possibility of considerable intermixing still must, perforce, be somewhat arbitrary rather exists. than natural, since many of the categories over- lap. The order in the following listing is II . Tagging or marking experiments suggested somewhat, but not entirely, by the historical order of their development. Tagging or marning experiments have usually been carried out in order to learn about I. Anatomical studies migrations or to maice estimates of population size. They can also be used to learn something Various anatomical characteristics have about subpopulations, provided that the tagging frequently been used in an effort to distinguish and recapturing are done on the spawning grounds. subpopulations, much as they have been used to distinguish subspecies, species and higher cate- III. Physiological characteristics. gories. The types of characters used may be included in the following groups: Subpopulations may have distinctive physiological as well as anatomical characteris- A. Morphometric: These include (1) tics. These might include, for example, inherent external features such as the proportions of growth characteristics. various body parts, (2) internal features such as the proportions of the various parts of the IV. Life history
Load more

Recommended publications
  • Fish Bulletin 161. California Marine Fish Landings for 1972 and Designated Common Names of Certain Marine Organisms of California
    UC San Diego Fish Bulletin Title Fish Bulletin 161. California Marine Fish Landings For 1972 and Designated Common Names of Certain Marine Organisms of California Permalink https://escholarship.org/uc/item/93g734v0 Authors Pinkas, Leo Gates, Doyle E Frey, Herbert W Publication Date 1974 eScholarship.org Powered by the California Digital Library University of California STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF FISH AND GAME FISH BULLETIN 161 California Marine Fish Landings For 1972 and Designated Common Names of Certain Marine Organisms of California By Leo Pinkas Marine Resources Region and By Doyle E. Gates and Herbert W. Frey > Marine Resources Region 1974 1 Figure 1. Geographical areas used to summarize California Fisheries statistics. 2 3 1. CALIFORNIA MARINE FISH LANDINGS FOR 1972 LEO PINKAS Marine Resources Region 1.1. INTRODUCTION The protection, propagation, and wise utilization of California's living marine resources (established as common property by statute, Section 1600, Fish and Game Code) is dependent upon the welding of biological, environment- al, economic, and sociological factors. Fundamental to each of these factors, as well as the entire management pro- cess, are harvest records. The California Department of Fish and Game began gathering commercial fisheries land- ing data in 1916. Commercial fish catches were first published in 1929 for the years 1926 and 1927. This report, the 32nd in the landing series, is for the calendar year 1972. It summarizes commercial fishing activities in marine as well as fresh waters and includes the catches of the sportfishing partyboat fleet. Preliminary landing data are published annually in the circular series which also enumerates certain fishery products produced from the catch.
    [Show full text]
  • Teleostei, Clupeiformes)
    Old Dominion University ODU Digital Commons Biological Sciences Theses & Dissertations Biological Sciences Fall 2019 Global Conservation Status and Threat Patterns of the World’s Most Prominent Forage Fishes (Teleostei, Clupeiformes) Tiffany L. Birge Old Dominion University, [email protected] Follow this and additional works at: https://digitalcommons.odu.edu/biology_etds Part of the Biodiversity Commons, Biology Commons, Ecology and Evolutionary Biology Commons, and the Natural Resources and Conservation Commons Recommended Citation Birge, Tiffany L.. "Global Conservation Status and Threat Patterns of the World’s Most Prominent Forage Fishes (Teleostei, Clupeiformes)" (2019). Master of Science (MS), Thesis, Biological Sciences, Old Dominion University, DOI: 10.25777/8m64-bg07 https://digitalcommons.odu.edu/biology_etds/109 This Thesis is brought to you for free and open access by the Biological Sciences at ODU Digital Commons. It has been accepted for inclusion in Biological Sciences Theses & Dissertations by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. GLOBAL CONSERVATION STATUS AND THREAT PATTERNS OF THE WORLD’S MOST PROMINENT FORAGE FISHES (TELEOSTEI, CLUPEIFORMES) by Tiffany L. Birge A.S. May 2014, Tidewater Community College B.S. May 2016, Old Dominion University A Thesis Submitted to the Faculty of Old Dominion University in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE BIOLOGY OLD DOMINION UNIVERSITY December 2019 Approved by: Kent E. Carpenter (Advisor) Sara Maxwell (Member) Thomas Munroe (Member) ABSTRACT GLOBAL CONSERVATION STATUS AND THREAT PATTERNS OF THE WORLD’S MOST PROMINENT FORAGE FISHES (TELEOSTEI, CLUPEIFORMES) Tiffany L. Birge Old Dominion University, 2019 Advisor: Dr. Kent E.
    [Show full text]
  • Reproductive Biology of Cetengraulis Edentulus (Cuvier, 1829), the Major Fishery Resource in Guanabara Bay, Brazil
    Neotropical Ichthyology, 12(4): 819-826, 2014 Copyright © 2014 Sociedade Brasileira de Ictiologia DOI: 10.1590/1982-0224-20130205 Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil Ana Clara Sampaio Franco1, Daniel Shimada Brotto2, David Man Wai Zee3 and Luciano Neves dos Santos1 Cetengraulis edentulus is a broadely distributed engraulid in Southwest Atlantic, currently accounting for the main fish species commercially exploited at Guanabara Bay, Brazil. This study aimed to extend the knowledge on reproduction of C. edentulus at Guanabara Bay and to test whether some descriptors of reproductive activity, especially the gonadosomatic index (GSI), and the index of reproductive activity (IRA) changed among seasons. A total of 978 C. edentulus specimens were retrieved from purse seine commercial landings at Conservas Rubi S.A. company, in São Gonçalo city, RJ. Subsamples of 90-120 individuals were collected from bimonthly yields between July 2010 (winter) and June 2011 (autumn). Most fish were adults (120-170 mm TL), in response to the high selectivity of commercial fisheries. All descriptors indicated a broad spawning period (late winter to spring), peaking in November, suggesting this is the critical period to protect C. edentulus stocks from overfishing at Guanabara Bay. Fecundity averaged 12,720 oocytes and was positively related to fish size, GSI and fullness index, indicating that preserving larger individuals (TL > 160 mm) could contribute significantly to the reproductive success of C. edentulus, since they produce more oocytes. Cetengraulis edentulus é um engraulídeo amplamente distribuído no Atlântico Sudoeste, sendo um importante recurso comercialmente explorado na baía de Guanabara, Brasil.
    [Show full text]
  • 61661147.Pdf
    Resource Inventory of Marine and Estuarine Fishes of the West Coast and Alaska: A Checklist of North Pacific and Arctic Ocean Species from Baja California to the Alaska–Yukon Border OCS Study MMS 2005-030 and USGS/NBII 2005-001 Project Cooperation This research addressed an information need identified Milton S. Love by the USGS Western Fisheries Research Center and the Marine Science Institute University of California, Santa Barbara to the Department University of California of the Interior’s Minerals Management Service, Pacific Santa Barbara, CA 93106 OCS Region, Camarillo, California. The resource inventory [email protected] information was further supported by the USGS’s National www.id.ucsb.edu/lovelab Biological Information Infrastructure as part of its ongoing aquatic GAP project in Puget Sound, Washington. Catherine W. Mecklenburg T. Anthony Mecklenburg Report Availability Pt. Stephens Research Available for viewing and in PDF at: P. O. Box 210307 http://wfrc.usgs.gov Auke Bay, AK 99821 http://far.nbii.gov [email protected] http://www.id.ucsb.edu/lovelab Lyman K. Thorsteinson Printed copies available from: Western Fisheries Research Center Milton Love U. S. Geological Survey Marine Science Institute 6505 NE 65th St. University of California, Santa Barbara Seattle, WA 98115 Santa Barbara, CA 93106 [email protected] (805) 893-2935 June 2005 Lyman Thorsteinson Western Fisheries Research Center Much of the research was performed under a coopera- U. S. Geological Survey tive agreement between the USGS’s Western Fisheries
    [Show full text]
  • Inter-American Tropical Tuna Commission Comision Interamericana Del Atun Tropical
    INTER-AMERICAN TROPICAL TUNA COMMISSION COMISION INTERAMERICANA DEL ATUN TROPICAL Bulletin - Bolet(n Vol. 11, No. 8 THE INTESTINE AS A DIAGNOSTIC CHARACTER IN IDENTIFYING CERTAIN CLUPEOIDS (ENGRAULIDIDAE, CLUPEIDAE, DUSSUMIERIIDAE) AND AS A MORPHOMETRIC CHARACTER FOR COMPARING ANCHOVETA (CETENGRAULIS MYSTICETUSJ POPULATIONS EL INTESTINO COMO CARACTER DIAGNOSTICO PARA LA IDENTIFICA­ CION DE CIERTOS CLUPEOIDES (ENGRAULIDIDAE, CLUPEIDAE, DUSSUMIERIIDAE) y COMO CARACTER MORFOMETRICO PARA LA COMPARACION DE LAS POBLACIONES DE ANCHOVETA lCETENGRAULIS MYSTICETUSJ by - por WILHELM HARDER La Jolla, California 1958 CONTENTS - INDICE ENGLISH VERSION - VERSION EN INGLES Page INTRODUCTION ---.-------------------------------------------- 367 GENERAL DESCRIPTION OF CLUPEOID ALIlvIENTARY TRACT ----------- 367 I~NGRAULIDIDAE -------------.-----------.---------------.---- 368 CLUPEIDAE . ---------------------------------------------------------- 370 DUSSUMIERIIDAE ---------- . 371 DIFFERENCES IN SPECIMENS OF CETENGRAULIS MYSTICETUS FROM DIFFERENT LOCALITIES - . -------------------- 371 ACKNO\VLEDGEMENTS ----------------------------------.------------------------------------ 372 FIGURES - ILUSTRACIONES ------------------------ 373 TABLES - TABLAS --- 378 SPANISI-I VERSION - VERSION EN ESPA:ÑOL Página INTRODUCCION ------------ 381 DESCRIPCION DEL TRACTO ALIl\1ENTICIO DE LOS CLUPEOIDES 382 ENGRAULIDIDAE . 382 CLUPEIDAE -----------. 384 DUSSUMIERIID.A.E --------------------- 385 DIFERENCIAS EN LOS EJEMPLARES DE CETENGRAULIS MYSTICETUS DE DISTINTAS LOCALIDADES
    [Show full text]
  • IN PREHISTORY the Lvolution of Archaic and Formative Cultures
    I PACIFIC LATIN AMERICA IN PREHISTORY The Lvolution of Archaic and Formative Cultures Edited by Michael Blake WSU PRESS Washington State University Press Pullman, Washington Washington State University Press PO Box 645910 Pullman, WA 99164-5910 Phone 800-354-7360; FAX 509-335-8568 ©1999 by the Board of Regents of Washington State University All rights reserved First printing 1999 Printed and bound in the United States of America on pH neutral, acid-free paper. Reproduction or transmission of material contained in this publication in excess of that permitted by copyright law is prohibited without permission in writing from the publisher. Libraly ofCongress Cataloging-in-Publication Data Pacific Latin America in prehistory: the evolution of archaic and formative cultures / edited by Michael Blake. p. cm. Includes bibliographical references. ISBN 0-87422-166-8 (pbk. : alk. paper) 1. Paleo-indians-Latin America-Pacific Coast. 2. Pacific Coast (Latin America)-Antiquities. 1. Blake, Michael, 1953­ . E65.P12 1999 911 '.8'091823-dc21 98-43834 ClF 8 Precolumbian Fishing on the Pacific Coast of Panama Richard G. Cooke and Anthony 1. Ranere Introduction: Estuarine skeletons in ontogenetic series (i.e., representing different Fishing in the Eastern Tropical Pacific life stages) in order to identify their ichthyofaunas to the satisfaction of the archaeologists who recover them so It is well known that the productivity, biotic diversity and painstakingly in the field. Objective interpretation of geological heterogeneity of large estuary-lagoon systems human exploitation requires baseline biological data on how along the Pacific coast of tropical America were causally individual species behave and are distributed in the many related to the precocity and intensity of sedentism and different sectors of an estuary.
    [Show full text]
  • Resuspended Intertidal Microphytobenthos As Major Diet Component of Planktivorous Atlantic Anchoveta Cetengraulis Edentulus (E
    ECOTROPICA 14: 121–128, 2008 © Society for Tropical Ecology RESUSPENDED INTERTIDAL MICROPHYTOBENTHOS AS MAJOR DIET COMPONENT OF PLANKTIVOROUS ATLANTIC ANCHOVETA CETENGRAULIS EDENTULUS (ENGRAULIDAE) FROM EQUATORIAL MANGROVE CREEKS Uwe Krumme1*, Heike Keuthen2, Mario Barletta3, Ulrich Saint-Paul1 & Wolfgang Villwock2 1 Center for Tropical Marine Ecology (ZMT), Fahrenheitstr. 6, 28359 Bremen, Germany. 2 Zoological Institute and Zoological Museum, University of Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany. 3 Laboratory of Ecology and Management of Estuarine and Coastal Ecosystems, Departemento de Oceanografia – UFPE, Cidade Universitaria, Recife, Pernambuco, Brazil Abstract. In the present study we examined the stomach contents of 49 Atlantic anchoveta, Cetengraulis edentulus (Engrau- lidae), caught with a block net from intertidal mangrove creeks at diurnal neap tides between June and September 1997 near Bragança (Pará, northern Brazil). On average the fish had eaten 0.53 % ± 0.35 SD of their wet weight, with fuller stomachs in June/July. Cetengraulis edentulus is a phytoplanktivorous filter-feeder. The principal food was composed of about half pelagic and half benthic diatoms, predominantly within a 20 to 200 µm size range. Coscinodiscus, other centric diatoms, and Nitzschia were abundant in the diet throughout the sample period. Sediment particles and detritus were also ingested. Our observations suggest that foraging occurs close to the substrate and throughout the water column in shallow turbid waters. The study indicates the importance of intertidal microphytobenthos production during low tide being made available to transient planktivorous fish at high tide by tidal resuspension. Atlantic anchoveta may occupy a central position in the food web of many Neotropical mangrove ecosystems along the Atlantic coast.
    [Show full text]
  • Feeding Larval Marine Fishes in the Laboratory: a Review Robert C
    Calif. Mar. Res. Comm., CalCOFI Rept., 14 :76-83, 1970. FEEDING LARVAL MARINE FISHES IN THE LABORATORY: A REVIEW ROBERT C. MAY ’ Scripps Institution of Oceanography La Jolla, Cailfornia INTRODUCTION of this well-studied family of predominantly marine fishes. Interest in rearing marine fishes under laboratory The present review will summarize previous at- conditions has intensified during the past decade, and tempts to feed the larvae of marine fishes in the there is every reason to believe that this trend will laboratory by presenting 1) a list of all food types continue. The larval stages of marine fishes are being used in the studies reviewed, and 2) a general discus- investigated experimentally because of their inherent sion of the major food types. Only reports describing biological interest, their importance in determining the rearing of larvae hatched from eggs in the labora- recruitment in adult fish populations, and their cen- tory are considered here, and reports of rearing in tral place in problems associated with large-scale fish large, uncontrolled bodies of water such as ponds, culture. The greatest difficulty in attempts to rear are excluded. Also excluded, of course, are studies marine fishes through the larval stage has frequently dealing with the rearing of fishes which have no free- been to provide a suitable food-that is, a food which swimming larval stage. A number of papers have ap- the larvae will consume and grow on and which can peared during the 1960’s concerned with the physi- be supplied in sufficiently large quantities. The litera- ology and behavior of marine fish larvae; although ture on rearing marine fishes is scattered, in several they frequently include mention of feeding in the languages, and in some cases not readily accessible, laboratory, most of them have been omitted here since and a comprehensive review emphasizing feeding has the methods used are usually described in greater not appeared until now.
    [Show full text]
  • A Mtieucanjmllsellm
    A MtieucanJMllsellm PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK, N. Y. I0024 NUMBER 24 I 0 MARCH 25, I970 The Hyobranchial Apparatus of Teleostean Fishes of the Families Engraulidae and Chirocentridae BY GARETH J. NELSON1 In a previous study of the gill arches of teleostean fishes of the family Clupeidae, the writer defined certain phyletic trends, and on this basis erected an hypothesis of the phyletic interrelationships of the currently recognized subfamilies (Nelson, 1967a, fig. 9). To check these results, study of the gill arches is extended, in the present paper, to the families Engraulidae and Chirocentridae, which probably include the nearest Recent relatives of the Clupeidae. In addition, the structure of the branchiostegal apparatus is reviewed for all three families. On the basis of the new data, it is possible to arrive at a more precise conception of the phyletic interrelationships of the main groups of clupeiform fishes, and to propose a revised higher classification: ORDER CLUPEIFORMES SUBORDER DENTICIPITOIDEI SUBORDER CLUPEOIDEI SUPERFAMILY CHIROCENTROIDAE SUPERFAMILY ENGRAULOIDAE SUPERFAMILY PRISTIGASTEROIDAE SUPERFAMILY CLUPEOIDAE 1 Assistant Curator, Department of Ichthyology, the American Museum of Natural History. 2 AMERICAN MUSEUM NOVITATES NO. 2410 MATERIAL AND METHODS Specimens available included representatives of virtually all genera commonly recognized (e.g., by Norman, 1957; Hildebrand, 1943, 1963a, 1963b; Svetovidov, 1963; Whitehead, 1968a). They were generally small- to-medium adults. The hyobranchial apparatus was dissected as a unit from a given specimen, stained with alizarin (in aqueous 2% potassium hydroxide), and cleaned and examined under a binocular microscope. Drawings were prepared either freehand, with the aid of an ocular micrometer, or by tracing from photographs.
    [Show full text]
  • SYNOPSIS of BIOLOGICAL DATA on the ANCHOVETA Cetengraulis Mysticetus Günther, 1866
    FAO Fisheries Synopsis No. 43 FRm/S43 (Distribution restricted) SAST - Anchoveta - 1,21(06),015,03 SYNOPSIS OF BIOLOGICAL DATA ON THE ANCHOVETA Cetengraulis mysticetus Günther, 1866 Prepared by W.H. Bayliff FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 1969 DOCUMENTS OF THE FISHERY DOCUMENTS DE LA DIVISION DOCUMENTOS DELA DIRECCION RESOURCES AND EXPLOITATION DES RESSOURCES ET DE L'EX- DE RECURSOS PESQUEROS Y EX- DIVISION OF FAO DEPARTMENT PLOITATION PES PECHES DU DE- PLOTACION DEL DEPARTAMENTO OF FISHERIES PARTEMENT DES PECHES DE LA DE PESCA DE LA FAO FAO Documents whicharenotofficial Des documents qui ne figurent pas Esta Subdirección publica varias se- FAO publications are issued in several parmi les publications officielles de Ia ries de documentos que no pueden series.They aregiven arestricted FAO sont publiés dans diverses séries. considerarse como publicacionesofi- distribution andthisfactshould be lis font seulement l'objet d'une distri- ciales de la FAO. Todos ellos tienen indicatedifthey are cited. Most of butionrestreinte, aussi convient-il de distribución limitada, circunstancia que them are prepared as working papers le préciser lorsque ces documnts sont debe indicarse en el caso de ser ci- for meetings, or are summaries of infor- cités.IIs'agit le plus souvent\ de do- tados. La mayoría de lostítulos que mationforuseof member govern- cuments de travail préparés pour des figuran endichas series son docu- ments,organizations,andspecialists réunions, ou de résumés d'information mentos de trabajopreparadospara concerned. àl'intention des gouvernements des reuniones o resúmenes de información pays membres, ainsi que des organi- destinadosalos estados miembros, sations et spécialistes intéressés. Ces organizaciones y especialistasintere- séries sont les suivantes: sados.
    [Show full text]
  • 2020 Program
    Western Society of Naturalists 101st Meeting Program Western Society of Naturalists ~ 2020 ~ Secretariat Chris Harley Patrick Martone Mary O’Connor Depts. Of Botany and Zoology University of British Columbia Vancouver, BC V6T1z4 Francis Janes UVIC [email protected] 101ST ANNUAL MEETING NOVEMBER 5 - NOVEMBER 8 2020 VIRTUAL MEETING 2 Welcome to the 101st Annual Meeting of the Western Society of Naturalists! WSN’s roots can be traced back to 1910 when a group of biologists, concerned about the lack of scientific meetings on the west coast, formed the Biological Society of the Pacific (call this our larval phase). The BSP was intended to include “any person interested in scientific work of a research nature.” In 1915, the American Society of Naturalists invited the BSP to join as a Pacific chapter under the ASN banner. Although the BSP voted in favor, the merger was eventually rejected by the ASN Executive Committee, who felt that we might not be sufficiently selective in admitting members. Through this process, the BSP formally metamorphosed into the Western Society of Naturalists in 1916. The first annual meeting of the society that would become WSN featured four scientific presentations and a dinner. Since then, our meetings and our society have grown substantially, but we still proudly welcome everyone who is interested in scientific work of a research nature. This year, we celebrate our 101st meeting. The circumstances are unusual, we are in the midst of a global pandemic, and also in a period of increased commitment to our society’s diversity, equity and inclusion of all naturalists.
    [Show full text]
  • Biodiversidad Y Conservación Biodiversity and Conservation
    SAN BASILIO BIODIVERSIDAD Y CONSERVACIÓN BIODIVERSITY AND CONSERVATION SULA VANDERPLANK, FABIO FAVORETTO ISMAEL MASCAREÑAS & OCTAVIO ABURTO Página de derechos de autor 2020 / Copyright page 2020 Cómo citar: Vanderplank, S., F. Favoretto, Mascareñas, I. y O. Aburto. 2020. San Basilio: Biodiversidad y Conservación / Biodiversidad y Conservación. ISBN: 978-0-578-71118-8. 164 páginas. How to cite: Vanderplank, S., F. Favoretto, Mascareñas, I. & O. Aburto. 2020. San Basilio: Biodiversidad y Conservación/Biodiversity and Conservation. ISBN: 978-0-578-71118-8. 164 pages. Revisor de textos / Copy editor: Traductor / Translator: Karen Levyszpiro Diseñador / Designer: Amanda González Moreno Publicado por / Published by: International Community Foundation Imagen de la portada / Cover image credit: Bahía de San Basilio, Alan Harper Barra superior, der. a izq. / Top row, left to right: Callisaurus draconoides, Brad Hollingsworth; Mammillaria dioica ssp. dioica, Sophie Winitsky; Ramiro Arcos Aguilar; Micrathene whitneyi, Elia Benítez; Coreocarpus parthenioides var. parthenioides, Isaí Domínguez. Imagen de la contraportada / Backcover image credit: Bahía de San Basilio, Alan Harper Barra superior, der. a izq. / Top row, left to right: Lepus californicus, Kevin Clark; Alan Harper; Danaus gilippus, Elia Benítez; Orcinus orca, Diego Gamero. Primera impresión: copias 200, 2020 First printing: 200 copies, 2020 DER / RIGHT: Benigno Guerrero Vanderplank, Favoretto, Mascareñas & Aburto · 1 Alan Harper RESUMEN EJECUTIVO La bahía de San Basilio, Baja California Sur, es inmedia- y áreas de nueva colonización que ocurren por encima tamente notable para cualquier visitante por su impre- de la línea actual de flotación. Las riquezas biológicas de sionante paisaje y la heterogeneidad de los accidentes San Basilio siguen amenazadas. La biodiversidad en la geográficos y hábitats.
    [Show full text]