DOCSLIB.ORG

Biomass of Antarctic Krill in the Scotia Sea in January/February 2000 and Its Use in Revising an Estimate of Precautionary Yield

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Biomass of Antarctic Krill in the Scotia Sea in January/February 2000 and Its Use in Revising an Estimate of Precautionary Yield ARTICLE IN PRESS Deep-Sea Research II 51 (2004) 1215–1236 www.elsevier.com/locate/dsr2 Biomass of Antarctic krill in the Scotia Sea in January/February 2000 and its use in revising an estimate of precautionary yield Roger P. Hewitta,Ã, Jon Watkinsb, Mikio Naganobuc, Viacheslav Sushind, Andrew S. Brierleyb,1, David Demera, Svetlana Kasatkinad, Yoshimi Takaoe, Cathy Gossb, Alexander Malyshkod, Mark Brandonf, So Kawaguchic, Volker Siegelg, Philip Trathanb, Jennifer Emerya, Inigo Eversonb, Denzil Millerh aSouthwest Fisheries Science Center, 8604 La Jolla Shores Drive, La Jolla, CA 92037, USA bBritish Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK cNational Research Institute of Far Seas Fisheries, Orido 5-7-1, Shimizu, Shizuoka 424, Japan dAtlantNIRO, 5 Dimitry Donskoy Street, Kaliningrad 236000, Russia eNational Research Institute of Fisheries Engineering, Ebidai Hasaki, Kashima-gun, Ibaraki 314-0421, Japan fEarth Sciences, The Open University, Milton Keynes MK7-6AA, UK gInstitut fu¨r Seefischerei, Palmaille 9, D-22767 Hamburg, Germany hMarine and Coastal Management, Private Bag X2, Roggebaai 8012, South Africa Accepted 18 June 2004 Available online 23 September 2004 Abstract In January and February 2000, a collaborative survey designed to assess the biomass of Antarctic krill across the Scotia Sea was conducted aboard research vessels from Japan, Russia, the UK and the USA using active acoustic and net sampling. Survey design, sampling protocols, and data analysis procedures are described. Mean krill density across the survey area was estimated to be 21.4 g mÀ2, and total biomass was estimated to be 44.3 million tonnes (CV 11.4%). This biomass estimate leads to a revised estimate of precautionary yield for krill in the Scotia Sea of 4 million tonnes. However, before the fishery can be permitted to expand to this level, it will be necessary to establish mechanisms to avoid concentration of fishing effort, particularly near colonies of land-breeding krill predators, and to consider the effects of krill immigrating into the region from multiple sources. Published by Elsevier Ltd. ÃCorresponding author. E-mail address: [email protected] (R.P. Hewitt). 1Present address: Getty Marine Laboratory, University of St. Andrews, St. Andrews, Fife, Scotland. 0967-0645/$ - see front matter Published by Elsevier Ltd. doi:10.1016/j.dsr2.2004.06.011 ARTICLE IN PRESS 1216 R.P. Hewitt et al. / Deep-Sea Research II 51 (2004) 1215–1236 1. Introduction one year should be less than 10%. The second criterion is to protect the viability of krill predator The highest concentrations of Antarctic krill populations; this is defined such that the median (Euphausia superba), krill predators, and krill- population level should be at least 75% of the fishing effort in the Southern Ocean are located in unexploited median population level. The third the Scotia Sea (Agnew and Nicol, 1996; Laws, criterion is to evaluate these risks using population 1985; Marr, 1962). The internationalfishery is trajectories that extend at least 20 years. The value regulated in accordance with the Convention for of the harvest rate, expressed as a proportion of the Conservation of Antarctic Marine Living the unexploited biomass (g), that meets these Resources, which is part of the Antarctic Treaty criteria is accepted as the most precautionary. system. In principle, the Commission for the This value, together with an estimate of B0; is used Conservation of Antarctic Marine Living Re- to set the precautionary yield for krill. sources (CCAMLR) has adopted a feedback Two important parameters in this analysis are approach to management of the krill fishery, by B0 and its associated variance. These values are which management measures are adjusted in used to generate a distribution of population response to ecosystem monitoring (Constable et biomasses from which an initialbiomass is drawn al., 2000; Hewitt and Linen Low, 2000). However, for each population trajectory. Initially, an esti- such a scheme remains to be fully developed. In mate of krill biomass was generated from acoustic the interim, a complementary approach, which data collected during the first international BIO- defines and implements provisions of Article II2 of MASS experiment (FIBEX)3 in 1981 (Trathan et the Convention in reference to the Scotia Sea krill al., 1992), the only large-scale acoustic survey in stock, was adopted in order to set a precautionary this region prior to 2000. Because exploitation had catch limit (Butterworth et al., 1991, 1994). historically been low relative to the size of the The approach is to set the proportion (g)of fished resource an estimate of the standing stock unexploited population biomass (B0) that can be was assumed to approximate B0: Recent reports of harvested under defined management criteria. The the Scientific Committee of CCAMLR have allowable catch, referred to as the precautionary questioned the current relevance of this estimate yield (Y), is thus defined as (e.g. CCAMLR, 1995, Annex 4, para 4.61) and have recommended a new survey. Y ¼ gB : (1) 0 The reasons for conducting a new survey were The risks of exceeding the criteria are evaluated recognition that: (1) severaltechnicalimprove- by comparing statisticaldistributions of popula- ments had been made in the assessment of krill tion biomasses generated from simulated popula- biomass using active acoustic methods since the tion trajectories, with and without fishing FIBEX survey (Everson et al., 1990; Greene et al., mortality. Uncertainty is accommodated by using 1991; Hewitt and Demer, 1991); (2) the FIBEX values of abundance, recruitment, growth, and survey area was substantially less than the known mortality drawn from appropriate statistical dis- habitat of krill in the Scotia Sea (CCAMLR, tributions. The first criterion is to protect the 1995); and (3) the krill population in the Scotia Sea viability of the harvested population and for may not be stable. Recently, published evidence Antarctic krill is defined such that the probability suggests that krill reproductive success may be that the spawning biomass declines to less than dependent on multi-year changes in the physical 20% of its unexploited median level during any environment (Brierley et al., 1999; Loeb et al., 2Article II of the Convention mandates that fisheries be 3In the early 1980s, the Scientific Committee for Antarctic managed such that: (a) the size of harvested populations is Research (SCAR) established the BIOMASS Program (Biolo- sufficient to ensure stable recruitment; (b) ecological relation- gicalInvestigations of Antarctic Systems and Stocks). FIBEX ships between harvested and dependent populations are was a multi-national, multi-ship effort to conduct large-scale maintained; and (c) changes to the marine system that cannot acoustic surveys over large areas of the Southern Ocean. See be reversed over two to three decades are prevented. also El-Sayed (1994). ARTICLE IN PRESS R.P. Hewitt et al. / Deep-Sea Research II 51 (2004) 1215–1236 1217 1997; Naganobu et al., 1999; Nicolet al.,2000 ; CCAMLR subsequently adopted a revised pre- White and Peterson, 1996). During periods of cautionary catch limit for krill (CCAMLR, 2000b; northward excursions of the Southern Boundary Hewitt et al., 2002). Much of the information of the Antarctic Circumpolar Current (SBACC), presented here is drawn from these reports. the development of winter sea ice is more extensive, populations of Salpa thompsoni (a pelagic tunicate postulated to be a competitor with krill for access to the spring phytoplankton 2. Survey design and data collection protocols bloom) are displaced offshore, and both krill reproductive output and survivalof their larvae The defining physicalfeature of the Scotia Sea is are enhanced. During periods of southward its southern boundary along the Scotia Ridge, excursion of the SBACC, the development of extending from the South Shetland Islands east winter sea ice is less extensive, salps are more and north through the South Orkney Islands, the abundant closer to shore, and krill reproductive South Sandwich Islands, and South Georgia (Fig. success is depressed. These interactions may be 1). This ridge influences the direction and intensity confounded by a warming trend observed in the of the ACC. Antarctic krill appear to move region of the Antarctic Peninsula over the last 50 eastward through the Scotia Sea via the ACC, years (Vaughan and Doake, 1996). The intention although the relative importance of passive trans- was to anchor the estimate of precautionary yield port versus active migration is uncertain. Likely with the most recent and accurate assessment of sources of immigrants to the Scotia Sea are the Antarctic krill in the Scotia Sea possible. Because Bellingshausen Sea to the west and the Weddell harvest rates continue to be low relative to the size Sea to the south. Differences in mitochondrial of the fished resource, it was again assumed that DNA sequences suggest that krill from these an estimate of the current standing stock was regions may be genetically distinct (Zane et al., 1998). Within the Scotia Sea, zones of water equivalent to B0: Plans for the survey developed over a period of convergence, eddies, and gyres are loci for krill 5 years through a series of working papers, concentrations (Makarov et al., 1988; Witek et al., discussions at the meetings of the Scientific 1988). Krill spawn in the vicinity of the South Committee of CCAMLR and its working groups, Shetland and South Orkney Islands. Although and more formalworkshops ( CCAMLR, 1995, they are abundant further to the north and east Annex 4, paras 4.62–4.67; CCAMLR, 1996, near South Georgia, they do not spawn there in Annex 4, paras 3.72–3.75; CCAMLR, 1997, great numbers and few larvae are found (Fraser, Annex 4, paras 8.121–8.129; CCAMLR, 1998, 1936; Siegel, 2000). Consumption of krill through- Annex 4, paras 9.49–9.90; CCAMLR, 1999, out the Scotia Sea by baleen whales, crabeater and Annex 4, paras 8.1–8.74 and Appendix D).
Load more

Recommended publications
  • Climate Change and Southern Ocean Resilience
    No.No. 52 5 l l JuneMay 20202021 POLARKENNAN PERSPECTIVES CABLE Adélie penguins on top of an ice flow near the Antarctic Peninsula. © Jo Crebbin/Shutterstock Climate Change and Southern Ocean Resilience REPORT FROM AN INTERDISCIPLINARY SCIENTIFIC WORKSHOP, MARCH 30, 2021 Andrea Capurroi, Florence Colleoniii, Rachel Downeyiii, Evgeny Pakhomoviv, Ricardo Rourav, Anne Christiansonvi i. Boston University Frederick S. Pardee Center for the Study of the Longer-Range Future ii. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale Antarctic and Southern Ocean Coalition iii. Australian National University iv. University of British Columbia v. Antarctic and Southern Ocean Coalition vi. The Pew Charitable Trusts CONTENTS I. INTRODUCTION BY EVAN T. BLOOM 3 II. EXECUTIVE SUMMARY 5 III. CLIMATE CHANGE AND SOUTHERN OCEAN RESILIENCE 7 A. CLIMATE CHANGE AND THE SOUTHERN OCEAN 7 B. CONNECTION OF REGIONAL SOUTHERN OCEAN PROCESS TO GLOBAL SYSTEMS 9 C. UNDERSTANDING PROCESS CHANGES IN THE SOUTHERN OCEAN 10 D. ANTARCTIC GOVERNANCE AND DECISION MAKING 15 E. CONCLUSION 18 F. REFERENCES 19 POLAR PERSPECTIVES 2 No. 5 l June 2021 I. INTRODUCTION BY EVAN T. BLOOM vii Fig 1: Southern Ocean regions proposed for protection A network of MPAs could allow for conservation of distinct areas, each representing unique ecosystems As the world prepares for the Glasgow Climate Change Conference in November 2021, there is considerable focus on the Southern Ocean. The international community has come to realize that the polar regions hold many of the keys to unlocking our understanding of climate-related phenomena - and thus polar science will influence policy decisions on which our collective futures depend.
    [Show full text]
  • A History of Tourism, Leisure and Adventure in the Antarctic and Sub-Antarctic, C.1895 to Present
    A History of Tourism, Leisure and Adventure in the Antarctic and Sub-Antarctic, c.1895 to Present by Wouter Pierre Hanekom Thesis presented in fulfilment of the requirements for the degree of Master of History in the Faculty of Arts and Social Sciences at Stellenbosch University Supervisor: Prof Sandra Scott Swart April 2014 Stellenbosch University http://scholar.sun.ac.za Plagiarism Declaration By submitting this dissertation electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that the reproduction and publication thereof by Stellenbosch University will not infringe on any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Signature: Date: Copyright © 2014 Stellenbosch University All rights reserved ii Stellenbosch University http://scholar.sun.ac.za Abstract This thesis deals with the nature and historical development of tourism and leisure activities that have been conducted within the Antarctic and sub-Antarctic regions from 1895 to present. First, it traces the brief history of human involvement with the Antarctic continent, which culminated in a surge of ostensibly scientific exploration with jingoistic overtones which has become widely known as the ‘Heroic Age’ of Antarctic exploration. These explorers’ adventures, taken up by the popular press and promoted by jingoistic governments, popularised a particular conception of the continent to the point where people imagined going to see it for themselves, vicariously reliving their heroes’ adventures in the form of tourism. The rise of formal governance on the Antarctic is then traced and used to explain how this provided for regular tourist activities to commence since the mid-1960s.
    [Show full text]
  • Correlative and Dynamic Species Distribution
    PERSPECTIVE Correlative and dynamic species distribution modelling for ecological predictions in the Antarctic: a cross-disciplinary concept Julian Gutt,1 Damaris Zurell,2 Thomas J. Bracegridle,3 William Cheung,4 Melody S. Clark,3 Peter Convey,3 Bruno Danis,5 Bruno David,6 Claude De Broyer,10 Guido di Prisco,7 Huw Griffiths,3 Re´ mi Laffont,6 Lloyd S. Peck,3 Benjamin Pierrat,6 Martin J. Riddle,8 Thomas Sauce` de,6 John Turner,3 Cinzia Verde,7 Zhaomin Wang3 & Volker Grimm9 1 Department of Bentho-pelagic processes, Alfred Wegener Institute, Columbusstr., DE-27568 Bremerhaven, Germany 2 Institute of Earth and Environmental Sciences, University of Potsdam, Karl-Liebknecht-Str. 24-25, DE-14476 Potsdam, Germany 3 British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, UK 4 Fisheries Centre, University of British Columbia, 2202 Main Mall Vancouver, BC, Canada 5 Department of Antarctic biodiversity information facility, Royal Belgian Institute of Natural Sciences, rue Vautier, 29, BE-1000 Brussels, Belgium 6 Bioge´ osciences, Laboratory 6282, Centre National de la Recherche Scientifique, Universite´ de Bourgogne, 6 boulevard Gabriel, FR-21000 Dijon, France 7 Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino 111, IT-80131 Naples, Italy 8 Australian Antarctic Division, 203 Channel Highway, Kingston, Tasmania 7050, Australia 9 Department of Ecological Modelling, Helmholtz Centre for Environmental Research, Permoserstr. 15, DE-04318 Leipzig, Germany 10 Department of Invertebrates, Royal Belgian Institute of Natural Sciences, rue Vautier, 29, BE-1000 Brussels, Belgium Keywords Abstract Environmental change; integrative modelling framework; spatially and Developments of future scenarios of Antarctic ecosystems are still in their temporally explicit modelling infancy, whilst predictions of the physical environment are recognized as being macroecology; biodiversity; habitat of global relevance and corresponding models are under continuous develop- suitability models.
    [Show full text]
  • Science Diplomacy: Antarctica, Science, and the Governance of International Spaces
    Science Diplomacy Science Diplomacy Berkman, Lang, Walton, and Young and Walton, Lang, Berkman, Smithsonian Institution Paul Arthur Berkman, Scholarly Press Michael A. Lang, P.O. Box 37012 MRC 957 David W. H. Walton, Washington, D.C. 20013-7012 and Oran R. Young, Editors www.scholarlypress.si.edu Smithsonian Institution Download a PDF of this publication through www.scholarlypress.si.edu. Request print copies by email: [email protected] ISBN-13: 978-1-935623-06-9 Antarctica, Science, and the Governance of Sc Smit holarly Pres hs International Spaces on ia n In s stitutio n Science Diplomacy Antarctica, Science, and the Governance of International Spaces Edited by Paul Arthur Berkman, Michael A. Lang, David W. H. Walton, and Oran R. Young A Smithsonian Contribution to Knowledge WASHINGTON D.C. 2011 Published by SMITHSONIAN INSTITUTION SCHOLARLY PRESS P.O. Box 37012 MRC 957 Washington, D.C. 20013- 7012 www.scholarlypress.si.edu Cover design: Piper Wallis Text and images in this publication may be protected by copyright and other restrictions or owned by individuals and entities other than, and in addition to, the Smithsonian Institution. Fair use of copyrighted material includes the use of protected materials for personal, educational, or noncommercial purposes. Users must cite author and source of content, must not alter or modify content, and must comply with all other terms or restrictions that may be applicable. Library of Congress Cataloging- in- Publication Data Science diplomacy : science, Antarctica, and the governance of international spaces / Paul Arthur Berkman, Michael A. Lang, David W. H. Walton, and Oran R. Young, editors.
    [Show full text]
  • Discover Antarctica! Public Engagement Campaign Evaluation
    Antarctic Treaty Consultative Meeting XXIX, Edinburgh 2006 Discover Antarctica! Public Engagement Campaign Evaluation Report Linda Capper, MCIPR, MBE, Athena Dinar & Becky Allen July 2006 i Evaluation Report Contents Foreword........................................................................................1 Executive Summary......................................................................2 Introduction ...................................................................................3 Media Campaign.........................................................................5 Marketing Campaign ..................................................................10 Exhibitions and Events Campaign .............................................15 Education .....................................................................................20 Business to Business PR .................................................................22 Conclusions and recommendations.........................................24 Acknowledgements.....................................................................25 Appendices...................................................................................26 • Communications plan • List of partner organisations • Feedback from stakeholders; from storytellers; from media; delegates • Press Releases • Media Circulation figures • Press Cuttings • Event photo gallery • Promotional Leaflet ii Foreword When the Antarctic Treaty Consultative Meeting met in Edinburgh in June 2006, it represented a number of firsts
    [Show full text]
  • Connecting Through Change
    Connecting Antarctica New Zealand through Change NEW ZEALAND ANTARCTIC SCIENCE CONFERENCE 2021 9-13 FEBRUARY 2021 Proudly supported by: Antarctic HAERE-ROA Science Platform UNIVERSITY OF CANTERBURY www.antarcticanz.govt.nz ICE-OCEAN INTERACTIONS AND SEA ICE PROCESSES ROB FENWICK MEMORIAL SESSION ON ICE AND EARTH SYSTEM DYNAMICS ATMOSPHERE, WEATHER AND CLIMATE DYNAMICS HUMAN CONNECTIONS AND IMPACTS MARINE LIFE IN THE ROSS SEA AND BEYOND Connecting through Change ECOSYSTEMS IN A CHANGING ENVIRONMENT CONTENTS Foreword ...................................................................................................2 Welcome ...................................................................................................3 Conference Organisation...........................................................................4 General Information ..................................................................................5 Programme ................................................................................................8 Workshops ...............................................................................................16 Social Functions ......................................................................................19 Antarctica After Dark................................................................................20 NZARI - Celebrating Sir Rob Fenwick's vision ........................................21 Awards .....................................................................................................24
    [Show full text]
  • With Admiral Byrd's Second Antarctic Expedition
    With Admiral Byrd’s Second Antarctic Expedition: H.R.(Bob)Young’s Narrative Account of His Experiences Down South & Returning to Civilization Edited with an Introduction and Postscript by Bruce Young ([email protected]) (Kingston, Ontario, Canada. June, 2008) ([email protected]) 1 CONTENTS 1. INTRODUCTION…………………………………… 3 2. AKNOWLEDGEMENTS…………………………….. 9 3. BOB YOUNG’s NARRATIVE ACCOUNT…………… 11 4. POSTSCRIPT ……………………………………….. 69 APPENDICES l. Bob’s July 3, 1933, letter to Admiral Byrd ……….. 89 2. Bob Recalls The Battle of Jutland…………………. 91 3. Bob’s 1935 Autobiographical Note………………... 96 4. Bob’s Composition “Out of divers suit to the…”…. 99 5. 1985 Appeal for Information re Bob’s Diary…........ 103 6. Mrs Bolling Byrd Clarke’s letter to the Editor…….. 104 7. Editor’s January 8, 2007, letter to Mrs Clarke…….. 105 8. ‘Personal Accounts’: Research at the SPRI………. 107 * I would not argue with readers who feel, at this early stage, that Sections of this paper can be skipped – to be read later, or perhaps never!. If ‘Introductions’ generally don’t spark your interest or prove profitable, and you can’t abide reading ‘Acknowledgements’, go directly to Bob Young’s own words in Section 3. And if my inserted notes in Sections 3 distract or weary you, ignore them. And should you be curious only about Bob’s life post-BAE2, then Section 4 beckons, with notes you also can ignore. Reading my Appendices before anything else is not recommended - but it is not forbidden! (If you do choose to go straight to them, hopefully they won’t put you off returning to the earlier pages).
    [Show full text]
  • MODES for Windows Print
    Identity Title content date Interviewer date of interview subject of reminiscences location subject keywords funding body Transcriber Access code AD6/24/1/1 Edward 'Ted' Bingham 1945 = 1947 Rae, Joanna 24.5.1985 Bingham, Edward William & Smith, Cape Geddes Station & Field commander & Medical officer & B.A.S. Edwards, Elizabeth Louise, Not open to FIDS 1945-47. (archivist) Gladys Joan & Rae, Joanna Stonington Island Station & Antarctic activities, F.I.D.S. & 11.2004 public Stonington Island and South Orkney Islands (Laurie International relations & Fire, London. Field Island) & Fallières Coast Trepassey & Ship, Trepassey, fire & commander and medical Reminiscences, F.I.D.S., Field officer. Commander, 1946-1947 & Station establishment, Stonington Island & Station establishment, Cape Geddes & Ship, John Biscoe, purchase of & Oral history AD6/24/1/2 Victor Marchesi 1943 = 1946 Rae, Joanna 13.8.1986 Marr, James William S. Port Lockroy Station & Ship's master & Operation Tabarin, B.A.S. Carroll, Alan Michael, 8.2003 Open Operation Tabarin (archivist) Goudier Island & Deception Antarctic activities & Oral history & 1943-1946. Captain Island Station & Hope Bay Sovereignty assertion, British & Ship, HMS William Scoresby. Station & Palmer Archipelago Bransfield & Ship, William Scoresby (Wiencke Island) & South & Reminiscences, Operation Tabarin, Shetland Islands (Deception ship's master & International Island) & Trinity Peninsula relations, with Argentina AD6/24/1/3 Gwion Davies Operation 1943 = 1946 Rae, Joanna 19.9.1986 Marr, James William S. & Matheson, Port Lockroy Station & Hope Stores officer & Reminiscences, B.A.S. Carroll, Alan Michael, 4.2006 Open Tabarin 1943-1946. Port (archivist) John & Ashton, Lewis & Taylor, Bay Station & Palmer Operation Tabarin, stores officer & Lockroy and Hope Bay. Andrew & Back, Eric Hatfield & Archipelago (Wiencke Island) Oral history & Operation Tabarin, Stores officer.
    [Show full text]
  • RRS James Clark Ross JR15005 Cruise Report
    RRS James Clark Ross JR15005 Cruise Report SO-AntEco South Orkneys - State of the Antarctic Ecosystem RRS James Clark Ross JR15005 Cruise Report South Orkneys - State of the Antarctic Ecosystem Huw Griffiths & the scientists of SO-AntEco British Antarctic Survey Cruise Report Falkland Islands – Signy – King Edward Point – Falkland Islands Report of RRS James Clark Ross cruise JR15005, February-March 2016 BAS Archive Reference Number: ES*/*/2015/* This report contains initial observations and conclusions. It is not to be cited without the written permission of the Director, British Antarctic Survey. March 2016 Contents Summary ........................................................................................................................................... 5 Objectives .......................................................................................................................................... 5 Summary narrative for JR15005 ................................................................................................ 6 Cruise Track .................................................................................................................................. 8 Personnel .......................................................................................................................................... 9 Officers and crew for JR15005 ................................................................................................... 9 Scientific Party .............................................................................................................................
    [Show full text]
  • 95-96 April No. 6
    THE ANTARCTICAN SOCIETY 905 NORTH JACKSONVILLE STREET ARLINGTON, VIRGINIA 22205 HONORARY PRESIDENT — MRS. PAUL A. SIPLE _________________________________________________________ Vol. 95-96 April No. 6 Presidents: Dr. Carl R. Eklund, 1959-61 Dr. Paul A. Siple, 1961-62 OUR 1996 PAUL C. DANIELS MEMORIAL LECTURE Mr. Gordon D. Cartwright, 1962-63 RADM David M. Tyree (Ret.), 1 963-64 Mr. George R. Toney, 1964-65 -- Joint Dinner Meeting with the Polar Research Board -- Mr. Morton J. Rubin, 1965-66 Dr. Albert P. Crary, 1966-68 Dr. Henry M. Dater, 1968-70 SIX DECADES WITH THE PENGUINS Mr. George A. Doumani, 1970-71 Dr. William J. L. Sladen, 1971-73 Mr. Peter F. Bermel, 1973-75 by Dr. Kenneth J. Bertrand, 197 5-77 Mrs. Paul A. Siple, 1977-78 Dr. William J.L. Sladen Dr. Paul C. Dalrymple, 1978-80 Dr. Meredith F. Burrill, 1980-82 Professor Emeritus, Johns Hopkins University Dr. Mort D. Turner, 1982-84 Dr. Edward P. Todd, 1984-86 Director, Environmental Studies, Airlie Center, Virginia Mr. Robert H. T. Dodson, 1986-88 Dr. Robert H. Rutford, 1988-90 on Mr. Guy G. Guthridge, 1990-92 Dr. Polly A. Penhale, 1992-94 Thursday evening, 9 May 1996 Mr. Tony K. Meunier, 1994-96 Honorary Members: 8 PM Ambassador Paul C. Daniels Dr. Laurence McKinle y Gould Holiday Inn Georgetown Count Emilio Pucci Sir Charles S. Wright 2101 Wisconsin Avenue N.W. Mr. Hugh Blackwell E vans Washington, DC Dr. Henry M. Dater Mr. August Howard Mr. Amory H. "Bud" Waite, Jr. * * * * C a s h B a r - 6 P M -------- Di nner - 7 PM * * * * Dr.
    [Show full text]
  • National Oceanography Centre Cruise Report No. 38 RRS James Clark
    National Oceanography Centre Cruise Report No. 38 RRS James Clark Ross Cruise JR15003 17 DEC – 13 JAN 2016 Hydrographic measurements on GO-SHIP line SR1b and investigations of circulation and isotope cycles in coastal West Antarctica Principal Scientist Y Firing 2016 National Oceanography Centre, Southampton University of Southampton Waterfront Campus European Way Southampton Hants SO14 3ZH UK Tel: +44 (0)23 8059 9669 Email: [email protected] © National Oceanography Centre, 2016 DOCUMENT DATA SHEET AUTHOR PUBLICATION FIRING, Y et al DATE 2016 TITLE RRS James Clark Ross Cruise JR15003, 17 Dec 2015 - 13 Jan 2016. Hydrographic measurements on GO-SHIP line SR1b and investigations of circulation and isotope cycles in coastal West Antarctica. REFERENCE Southampton, UK: National Oceanography Centre, Southampton, 41pp. (National Oceanography Centre Cruise Report, No. 38) ABSTRACT This cruise comprised work contributing to five projects. The twenty-first complete occupation of the Drake Passage GO-SHIP section SR1b obtained full-depth temperature, salinity, and lowered ADCP velocity profiles at 28 stations, along with underway measurements, with the objectives of investigating and monitoring interannual variability and trends in Antarctic Circumpolar Current structure and property transports and Southern Ocean water mass properties. Turnarounds of bottom pressure recorder (BPR) moorings contributed to the long time series of bottom pressure in Drake Passage. Biogeochemically-equipped Argo floats were deployed as part of the Southern Ocean Carbon and Climate Observations and Modelling (SOCCOM) project to increase climate-quality observations in the Southern Ocean. Gliders were deployed over the Western Antarctic Peninsula continental shelf to measure properties and circulation with the aim of understanding flow and mixing of warm waters onto the shelf.
    [Show full text]
  • Cover Photos B-15A
    Cover Photos Top Photo This is the northern edge of iceberg B-15A floating in the Ross Sea, Antarctica. (Photo by Josh Landis) Bottom Photo National Science Foundation-funded researcher, Douglas MacAyeal, installs a tower with instruments on iceberg B-15A. These instruments will relay position, temperature, wind speed, pressure, and humidity to a satellite. Scientists are tracking the conditions on and around the iceberg as it makes its way through the waters off Antarctica. (Photo by Josh Landis) This Science Planning Summary publication was prepared by the Science Support Division of Raytheon Polar Services Company Under contract to the National Science Foundation OPP-0000373 Foreword This Science Planning Summary publication is for use by U.S. Antarctic Program participants only. Others interested in knowing more about U.S. antarctic activitities are encouraged to view the National Science Foundation’s Polar Research web site at http://www.nsf.gov/od/ opp. This site includes descriptions of each of the current year’s scientific research projects. This United States Antarctic Program (USAP) Science Planning Summary contains a synopsis of the plan for the 2001-2002 season (i.e., from mid-August 2001 to mid-August 2002) for the USAP. This publica- tion is a preseason summary (i.e., prior to the 2001-2002 austral-summer season); it contains the current information available as of mid-to-late September 2001. Some of this information may change throughout the austral-summer and winter-over periods as project planning evolves. There is a Table of Contents and the following three basic sections in this publication.
    [Show full text]