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Worldwide Large-Scale Fluctuations of Sardine and Anchovy Populations
S. AP. J. mar. Sci. 21: 289-347 1999 289 WORLDWIDE LARGE-SCALE FLUCTUATIONS OF SARDINE AND ANCHOVY POPULATIONS R. A. SCHwARTZLOSEl, J. ALHEIT2,A. BAKUN3, T. R. BAUMGARTNER4, R. CLOETE5, R. J. M. CRAWFORD6,W. J. FLETCHER7, Y. GREEN-RUIZ8, E. HAGEN2, T. KAWASAKI9, D. LLUCH-BELDAIO, S. E. LLUCH-COTA11, A. D. MacCALL12, Y. MATSUURA13,M. O. NEVAREZ-MARTINEZ14, R.H. PARRISH15, C.ROY6, R. SERRAI6, K. V.SHUST17, M. N. WARD18 and J. Z. ZUZUNAGA19 Decade-scale regimes of sardine Surdinops sagax and anchovy Engruulis spp. have been observed in the productive coastal waters of the North-Western, North-Eastem and South-Eastem Pacific and the South-Eastem Atlantic. In each of these systems, the two genera fluctuate out of phase with each other. The subdominant genus may initiate a recovery while the other species is still abundant, so population growth is not necessarily a response to a vacant niche. Rather, it appears to be triggered by formation of one or a few powerful year-classes. At high population levels, quality of sardine and their eggs decreased in Japan, leading to decreased production and survival of eggs, poor year- classes and stock collapse. Excessive fishing of strong year-classes early in the recovery stage may prevent a species from assuming dominance, so influencing the natural succession of species. This may greatly alter the structure and functioning of an ecosystem. For example, a mesopelagic forage fish may replace an epipelagic one, with severe , repercussions for predators that can only feed in the upper ocean, e.g. some seabirds. -
Early Stages of Fishes in the Western North Atlantic Ocean Volume
ISBN 0-9689167-4-x Early Stages of Fishes in the Western North Atlantic Ocean (Davis Strait, Southern Greenland and Flemish Cap to Cape Hatteras) Volume One Acipenseriformes through Syngnathiformes Michael P. Fahay ii Early Stages of Fishes in the Western North Atlantic Ocean iii Dedication This monograph is dedicated to those highly skilled larval fish illustrators whose talents and efforts have greatly facilitated the study of fish ontogeny. The works of many of those fine illustrators grace these pages. iv Early Stages of Fishes in the Western North Atlantic Ocean v Preface The contents of this monograph are a revision and update of an earlier atlas describing the eggs and larvae of western Atlantic marine fishes occurring between the Scotian Shelf and Cape Hatteras, North Carolina (Fahay, 1983). The three-fold increase in the total num- ber of species covered in the current compilation is the result of both a larger study area and a recent increase in published ontogenetic studies of fishes by many authors and students of the morphology of early stages of marine fishes. It is a tribute to the efforts of those authors that the ontogeny of greater than 70% of species known from the western North Atlantic Ocean is now well described. Michael Fahay 241 Sabino Road West Bath, Maine 04530 U.S.A. vi Acknowledgements I greatly appreciate the help provided by a number of very knowledgeable friends and colleagues dur- ing the preparation of this monograph. Jon Hare undertook a painstakingly critical review of the entire monograph, corrected omissions, inconsistencies, and errors of fact, and made suggestions which markedly improved its organization and presentation. -
Effects of Parasites on Marine Maniacs
EFFECTS OF PARASITES ON MARINE MANIACS JOSEPH R. GERACI and DAVID J. ST.AUBIN Department of Pathology Ontario Veterinary College University of Guefph Guelph, Ontario Canada INTRODUCTION Parasites of marine mammals have been the focus of numerous reports dealing with taxonomy, distribution and ecology (Defyamure, 1955). Descriptions of associated tissue damage are also available, with attempts to link severity of disease with morbidity and mortality of individuals and populations. This paper is not intended to duplicate that Iiterature. Instead we focus on those organisms which we perceive to be pathogenic, while tempering some of the more exaggerated int~~retations. We deal with life cycles by emphasizing unusual adap~t~ons of selected organisms, and have neces- sarily limited our selection of the literature to highlight that theme. For this discussion we address the parasites of cetaceans---baleen whales (mysticetes), and toothed whales, dolphins and porpoises (odon- tocetes): pinnipeds-true seals (phocidsf, fur seals and sea Iions (otariidsf and walruses (adobenids); sirenians~anatees and dugongs, and the djminutive sea otter. ECTOPARASITES We use the term “ectoparasite’” loosely, when referring to organisms ranging from algae to fish which somehow cling to the surface of a marine mammal, and whose mode of attachment, feeding behavior, and relationship with the host or transport animal are sufficiently obscure that the term parasite cannot be excluded. What is clear is that these organisms damage the integument in some way. For example: a whale entering the coid waters of the Antarctic can acquire a yelIow film over its body. Blue whales so discoiored are known as “sulfur bottoms”. -
Killer Controversy, Why Orcas Should No Longer Be Kept in Captivity
Killer Controversy Why orcas should no longer be kept in captivity ©Naomi Rose - HSI Prepared by Naomi A. Rose, Ph.D. Senior Scientist September 2011 The citation for this report should be as follows: Rose, N. A. 2011. Killer Controversy: Why Orcas Should No Longer Be Kept in Captivity. Humane Society International and The Humane Society of the United States, Washington, D.C. 16 pp. © 2011 Humane Society International and The Humane Society of the United States. All rights reserved. i Table of Contents Table of Contents ii Introduction 1 The Evidence 1 Longevity/survival rates/mortality 1 Age distribution 4 Causes of death 5 Dental health 5 Aberrant behavior 7 Human injuries and deaths 8 Conclusion 8 Ending the public display of orcas 9 What next? 10 Acknowledgments 11 ii iii Killer Controversy Why orcas should no longer be kept in captivity Introduction Since 1964, when a killer whale or orca (Orcinus orca) was first put on public display1, the image of this black-and-white marine icon has been rehabilitated from fearsome killer to cuddly sea panda. Once shot at by fishermen as a dangerous pest, the orca is now the star performer in theme park shows. But both these images are one-dimensional, a disservice to a species that may be second only to human beings when it comes to behavioral, linguistic, and ecological diversity and complexity. Orcas are intelligent and family-oriented. They are long-lived and self- aware. They are socially complex, with cultural traditions. They are the largest animal, and by far the largest predator, held in captivity. -
Small Pelagics Fishery in Sonora, Gulf of California
SCS Global Services Report SMALL PELAGICS FISHERY IN SONORA, GULF OF CALIFORNIA MSC Fishery Assessment Report Public Certification Draft Report Prepared by: Dr. Carlos Alvarez (Lead, P1 & P3 Team Member) Ms. Sandra Andraka (P2 Team Member) Ms. Gabriela Anhalzer (Coordination, P2 Support) Dr. Sian Morgan (Quality Review) Natural Resources Division +1.510.452.xxxx [email protected] For Cámara Nacional de la Industria Pesquera (CANAINPES) Sonora, Mexico April 21st, 2017 2000 Powell Street, Ste. 600, Emeryville, CA 94608 USA +1.510.452.8000 main | +1.510.452.8001 fax www.SCSglobalServices.com SCS Global Services Report List of Tables .................................................................................................................... 1 List of Figures ................................................................................................................... 3 Glossary ........................................................................................................................... 6 1. Executive Summary ....................................................................................................... 9 Fishery Operations Overview ......................................................................................................................... 9 Assessment Overview .................................................................................................................................. 10 Summary of Findings .................................................................................................................................. -
Orcas in Our Midst, Volume 2, the Next Generation
Salish Sea Watershed and Columbia Basin The Salish Sea includes marine waters from Puget Sound, Washington to Georgia Strait, British Columbia. Orcas forage and travel throughout these inland waters, and also depend on salmon returning to the Columbia River, especially in winter months. Map courtesy of Harvey Greenberg, Department of Earth and Space Sciences, University of Washington (from USGS data). The Whales Who Share Our Inland Waters J pod, with some L pod orcas, in a formation known as “resting.” In this pattern, pods travel slowly in tight lines just under the surface for a few minutes, then rise for a series of blows for a minute or two. Photo by Jeff Hogan. Volume 2: The Next Generation Second Edition, March, 2006, updated August 2010 First edition funded by Puget Sound Action Team’s Public Involvement and Education Program by Howard Garrett Orca Network Whidbey Island, Washington Olympia, Washington www.orcanetwork.org www.psat.wa.gov Teachers: Student Activity guides by Jeff Hogan, Killer Whale Tales, Vashon, WA available at www.killerwhaletales.org or contact [email protected]. Orca Network is dedicated to raising awareness about the whales of the Pacific Northwest and the importance of providing them healthy and safe habitats. COVER: “Salmon Hunter” by Randall Scott Courtesy of Wild Wings, LLC.Lake City, MN 55041 Prints by the artist may be ordered by calling 1-800-445-4833 J1, at over 50 years old, swims in the center of a tight group of close family including newborn J38, at right. Photo by Jeff Hogan, Killer Whale Tales. Dedication To the mysterious orcas roaming these bountiful waters, to readers of all ages who seek to understand wildlife in their natural settings, to celebrate the whales’ presence here, and to help protect and restore the habitats we share with our orca neighbors. -
Annotated Checklist of the Fish Species (Pisces) of La Réunion, Including a Red List of Threatened and Declining Species
Stuttgarter Beiträge zur Naturkunde A, Neue Serie 2: 1–168; Stuttgart, 30.IV.2009. 1 Annotated checklist of the fish species (Pisces) of La Réunion, including a Red List of threatened and declining species RONALD FR ICKE , THIE rr Y MULOCHAU , PA tr ICK DU R VILLE , PASCALE CHABANE T , Emm ANUEL TESSIE R & YVES LE T OU R NEU R Abstract An annotated checklist of the fish species of La Réunion (southwestern Indian Ocean) comprises a total of 984 species in 164 families (including 16 species which are not native). 65 species (plus 16 introduced) occur in fresh- water, with the Gobiidae as the largest freshwater fish family. 165 species (plus 16 introduced) live in transitional waters. In marine habitats, 965 species (plus two introduced) are found, with the Labridae, Serranidae and Gobiidae being the largest families; 56.7 % of these species live in shallow coral reefs, 33.7 % inside the fringing reef, 28.0 % in shallow rocky reefs, 16.8 % on sand bottoms, 14.0 % in deep reefs, 11.9 % on the reef flat, and 11.1 % in estuaries. 63 species are first records for Réunion. Zoogeographically, 65 % of the fish fauna have a widespread Indo-Pacific distribution, while only 2.6 % are Mascarene endemics, and 0.7 % Réunion endemics. The classification of the following species is changed in the present paper: Anguilla labiata (Peters, 1852) [pre- viously A. bengalensis labiata]; Microphis millepunctatus (Kaup, 1856) [previously M. brachyurus millepunctatus]; Epinephelus oceanicus (Lacepède, 1802) [previously E. fasciatus (non Forsskål in Niebuhr, 1775)]; Ostorhinchus fasciatus (White, 1790) [previously Apogon fasciatus]; Mulloidichthys auriflamma (Forsskål in Niebuhr, 1775) [previously Mulloidichthys vanicolensis (non Valenciennes in Cuvier & Valenciennes, 1831)]; Stegastes luteobrun- neus (Smith, 1960) [previously S. -
Proposal to Retire the Orca Tokitae/Lolita to Her Native Habitat in the Pacific Northwest
PROPOSAL TO RETIRE THE ORCA LOLITA TO HER NATIVE HABITAT IN THE PACIFIC NORTHWEST Lolita in the 80’ long x 35’ wide x 20’ deep tank in Miami. Lolita’s seapen rehabilitation and retirement home in the San Juan Islands. Lolita’s seapen site in the San Juan Islands. The location for Lolita's seapen in the San Juan Islands. Depths are at low mean tide, in fathoms. Seapen site in the San Juan Islands. TABLE OF CONTENTS I. Introduction II. Executive Summary III. Background IV. Lolita’s Retirement Plan A. Step by step plan B. Goals C. Permitting D. Transport I. Introduction (revised Feb. 17, 2018) The original proposal for Lolita’s rehabilitation and retirement was first prepared by Center for Whale Research, Friday Harbor, WA, in April, 1995, (see Marine Biologist Ken Balcomb's Comprehensive Retirement Plan - A pre-proposal to return and rehabilitate a captive killer whale named Lolita to her home waters in Greater Puget Sound. Prepared by Center for Whale Research, April, 1995, For the 1995 Annual Meeting of the Association of Zoos and Aquariums in Seattle) and has been developed in collaboration with Orca Network in Freeland, WA. This draft proposal for Lolita’s retirement assumes that all concerned want the best outcome for Lolita, and further assumes that moving Lolita from Miami to her native waters in the Pacific NW in a carefully phased and professionally conducted transport, rehabilitation, and retirement program, with prescribed contingencies to meet all foreseeable circumstances, would be physically and mentally therapeutic and beneficial for her overall health and well-being. -
Bulletin 202
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What the Whale Was: Orca Cultural Histories in British Columbia Since 1964
WHAT THE WHALE WAS: ORCA CULTURAL HISTORIES IN BRITISH COLUMBIA SINCE 1964 by Mark T. Werner B.A., St. Olaf College, 2008 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF ARTS in The Faculty of Graduate Studies (History) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) December 2010 © Mark T. Werner, 2010 Abstract My thesis argues that indigenous historical narratives demonstrate an understanding of the killer whale subjectivity that settler society is only beginning to comprehend. Set in the late 20th century, a period when human relationships with killer whales were undergoing a fast-paced reconfiguration, my research explores the spaces of orca-human encounter in regards to three killer whales: Moby Doll, the world’s first orca held in captivity; Skana, the first orca showcased at the Vancouver Aquarium; and Luna, the orphaned orca of Nootka Sound. Each example speaks to the common process by which humans project culturally-specific narratives and beliefs onto the lives of the whales. In the case of Moby Doll, I argue that the dominant discourse regarding the whale conformed to a strict gender script that functioned to silence other narratives and realities of Moby’s captivity. In my following chapter, I look at how the close relationship between Paul Spong and Skana inspired the scientist to abandon his most fundamental assumptions about orcas in favor of new affordances for orca subjectivity. Furthermore, I argue that the scientific research of John Lilly, a scientist who had a similar conversion experience with dolphins, inspired whole new literatures and imaginations of intelligent dolphins in New Age culture. -
Orcas in Puget Sound
Technical Report 2007-01 Orcas in Puget Sound Prepared in support of the Puget Sound Nearshore Partnership Birgit Kriete Orca Relief Valued Ecosystem Components Report Series he Puget Sound Nearshore Partner- Brennan, J.S. 2007. Marine Riparian Vegetation Communi- Tship (PSNP) has developed a list of ties of Puget Sound. Puget Sound Nearshore Partnership valued ecosystem components (VECs). Report No. 2007-02. Published by Seattle District, U.S. The list of VECs is meant to represent a Army Corps of Engineers, Seattle, Washington. cross-section of organisms and physical Buchanan, J.B. 2006. Nearshore Birds in Puget Sound. Puget structures that occupy and interact with Sound Nearshore Partnership Report No. 2006-05. Pub- the physical processes found in the near- lished by Seattle District, U.S. Army Corps of Engineers, shore. The VECs will help PSNP frame Seattle, Washington. the symptoms of declining Puget Sound nearshore ecosystem integrity, explain Dethier, M.N. 2006. Native Shellfish in Nearshore Ecosys- how ecosystem processes are linked to ecosystem outputs, tems of Puget Sound. Puget Sound Nearshore Partnership and describe the potential benefits of proposed actions in Report No. 2006-04. Published by Seattle District, U.S. terms that make sense to the broader community. A series Army Corps of Engineers, Seattle, Washington. of “white papers” was developed that describes each of the Eissinger, A.M. 2007. Great Blue Herons in Puget Sound. VECs. Following is the list of published papers in the series. Puget Sound Nearshore Partnership Report No. 2007-06. All papers are available at www.pugetsoundnearshore.org. Published by Seattle District, U.S. -
Luna / Tsu-Xiit the “Whale”: Governance Across (Political and Cultural) Borders1 by Emma S
Luna / Tsu-xiit the “Whale”: Governance Across (Political and Cultural) Borders1 By Emma S. Norman, Ph.D., Northwest Indian College Abstract: This case examines the multiple discourses (identities) created around Luna, a lone juvenile orca (or killer whale, Orcinus orca) in the remote waters off of the northwest coast of Vancouver Island, British Columbia. This case illustrates the complexities associated with managing “resources” that transcend both political borders (in this case, the Canada-U.S. border) and cultural borders (Western - non-Western). The case compares the experiences of the Mowachaht/Muchalaht First Nation, which recognizes Luna (or, in the perception and language of the Mowachaht/Muchalaht, Tsu- xiit) as its chief incarnate, with those of governmental employees (Fisheries and Oceans Canada, or DFO) who are charged with the task of protecting marine life and habitat. The case illustrates how a single living being can hold multiple meanings to multiple people. In so doing, the story of Luna brings to light two main points: Modern conceptions of nature are constructed socially, and governance of shared resources requires an acceptance of diverse worldviews – particularly in the case Native and Western belief systems. Background In July 2001 a lone juvenile orca was observed in the remote waters off of the northwest coast of Vancouver Island, British Columbia. The killer whale2 was a curious sight. After more than 30 years of research, scientists have come to believe that orcas are social creatures that stay with their families (or pods) for life. Even when the animals are fully grown, they are not known to stray far from their mothers.