ABOUT SEALS All About Seals
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Alaska Sea Lions and Seals
Alaska Sea Lions and Seals Blaire, Kate, Donovan, & Alex Biodiversity of Alaska 18 June 2017 https://www.stlzoo.org/files/3913/6260/5731/Sea-lion_RogerBrandt.jpg Similarities & Differences of Sea Lions and Seals Phocidae Family Otariidae Family cannot rotate back can rotate back flippers flippers; move like a marine under themselves to walk caterpillar on land mammals and run on land no external earflaps pinniped, “fin external earflaps footed” in use back flippers for Latin use front flippers for power when swimming power when swimming preyed upon by polar use front flippers for use back flippers for bears, orcas, steering when swimming steering when swimming and sharks food: krill, fish, lobster, food: squid, octopus, birds birds, and fish claws and fur on front no claws or hair on front flippers flippers Seals ("What’s the Difference “ 2017) Sea Lions Evolution • Both seals and sea lions are Pinnipeds • Descended from one ancestral line • Belong to order carnivora • Closest living relatives are bears and musteloids (diverged 50 million years ago) http://what-when-how.com/marine-mammals/pinniped-evolution- (Churchill 2015) marine-mammals/ http://www.chinadaily.com.cn/cndy/2009-04/24/content_7710231.htm Phylogenetics https://en.wikipedia.org/wiki/Pinniped Steller: Eumetopias jubatus http://www.arkive.org/stellers-sea-lion/eumetopias-jubatus/image-G62602.html Steller: Eumetopias jubatus • Classification (”Steller Sea Lion” 2017) Kingdom: Animalia Phylum: Chordata Class: Mamalia Order: Carnivora Family: Otarridae Genus: Eumetopias Species: -
Lake Baikal Russian Federation
LAKE BAIKAL RUSSIAN FEDERATION Lake Baikal is in south central Siberia close to the Mongolian border. It is the largest, oldest by 20 million years, and deepest, at 1,638m, of the world's lakes. It is 3.15 million hectares in size and contains a fifth of the world's unfrozen surface freshwater. Its age and isolation and unusually fertile depths have given it the world's richest and most unusual lacustrine fauna which, like the Galapagos islands’, is of outstanding value to evolutionary science. The exceptional variety of endemic animals and plants make the lake one of the most biologically diverse on earth. Threats to the site: Present threats are the untreated wastes from the river Selenga, potential oil and gas exploration in the Selenga delta, widespread lake-edge pollution and over-hunting of the Baikal seals. However, the threat of an oil pipeline along the lake’s north shore was averted in 2006 by Presidential decree and the pulp and cellulose mill on the southern shore which polluted 200 sq. km of the lake, caused some of the worst air pollution in Russia and genetic mutations in some of the lake’s endemic species, was closed in 2009 as no longer profitable to run. COUNTRY Russian Federation NAME Lake Baikal NATURAL WORLD HERITAGE SERIAL SITE 1996: Inscribed on the World Heritage List under Natural Criteria vii, viii, ix and x. STATEMENT OF OUTSTANDING UNIVERSAL VALUE The UNESCO World Heritage Committee issued the following statement at the time of inscription. Justification for Inscription The Committee inscribed Lake Baikal the most outstanding example of a freshwater ecosystem on the basis of: Criteria (vii), (viii), (ix) and (x). -
Monk Seals in Post-Classical History
Monk Seals in Post-Classical History The role of the Mediterranean monk seal (Monachus monachus) in European history and culture, from the fall of Rome to the 20th century William M. Johnson Mededelingen No. 39 2004 NEDERLANDSCHE COMMISSIE VOOR INTERNATIONALE NATUURBESCHERMING Mededelingen No. 39 i NEDERLANDSCHE COMMISSIE VOOR INTERNATIONALE NATUURBESCHERMING Netherlands Commission for International Nature Protection Secretariaat: Dr. H.P. Nooteboom National Herbarium of the Netherlands Rijksuniversiteit Leiden Einsteinweg 2 Postbus 9514, 2300 RA Leiden Mededelingen No. 39, 2004 Editor: Dr. H.P. Nooteboom PDF edition 2008: Matthias Schnellmann Copyright © 2004 by William M. Johnson ii MONK SEALS IN POST-CLASSICAL HISTORY The role of the Mediterranean monk seal (Monachus monachus) in European history and culture, from the fall of Rome to the 20th century by William M. Johnson Editor, The Monachus Guardian www.monachus-guardian.org email: [email protected] iii iv TABLE OF CONTENTS MONK SEALS IN POST-CLASSICAL HISTORY ......................................................III ABSTRACT ......................................................................................................................... VII ACKNOWLEDGEMENTS ........................................................................................................ VII MONK SEALS IN POST-CLASSICAL HISTORY ..............................................................................1 AN INTRODUCTION TO THE SPECIES ......................................................................1 -
56. Otariidae and Phocidae
FAUNA of AUSTRALIA 56. OTARIIDAE AND PHOCIDAE JUDITH E. KING 1 Australian Sea-lion–Neophoca cinerea [G. Ross] Southern Elephant Seal–Mirounga leonina [G. Ross] Ross Seal, with pup–Ommatophoca rossii [J. Libke] Australian Sea-lion–Neophoca cinerea [G. Ross] Weddell Seal–Leptonychotes weddellii [P. Shaughnessy] New Zealand Fur-seal–Arctocephalus forsteri [G. Ross] Crab-eater Seal–Lobodon carcinophagus [P. Shaughnessy] 56. OTARIIDAE AND PHOCIDAE DEFINITION AND GENERAL DESCRIPTION Pinnipeds are aquatic carnivores. They differ from other mammals in their streamlined shape, reduction of pinnae and adaptation of both fore and hind feet to form flippers. In the skull, the orbits are enlarged, the lacrimal bones are absent or indistinct and there are never more than three upper and two lower incisors. The cheek teeth are nearly homodont and some conditions of the ear that are very distinctive (Repenning 1972). Both superfamilies of pinnipeds, Phocoidea and Otarioidea, are represented in Australian waters by a number of species (Table 56.1). The various superfamilies and families may be distinguished by important and/or easily observed characters (Table 56.2). King (1983b) provided more detailed lists and references. These and other differences between the above two groups are not regarded as being of great significance, especially as an undoubted fur seal (Australian Fur-seal Arctocephalus pusillus) is as big as some of the sea lions and has some characters of the skull, teeth and behaviour which are rather more like sea lions (Repenning, Peterson & Hubbs 1971; Warneke & Shaughnessy 1985). The Phocoidea includes the single Family Phocidae – the ‘true seals’, distinguished from the Otariidae by the absence of a pinna and by the position of the hind flippers (Fig. -
December 20, 2007
BEFORE THE SECRETARY OF COMMERCE PETITION TO LIST THE RIBBON SEAL (HISTRIOPHOCA FASCIATA) AS A THREATENED OR ENDANGERED SPECIES UNDER THE ENDANGERED SPECIES ACT © G. CARLETON RAY CENTER FOR BIOLOGICAL DIVERSITY DECEMBER 20, 2007 Notice of Petition____________________________________________________ Carlos M. Gutierrez Secretary of Commerce U.S. Department of Commerce 1401 Constitution Avenue, N.W., Room 5516 Washington, D.C. 20230 Dr. William Hogarth Assistant Administrator for Fisheries National Oceanographic and Atmospheric Administration 1315 East-West Highway Silver Springs, MD 20910 PETITIONER The Center for Biological Diversity 1095 Market Street, Suite 511 San Francisco, CA 94103 ph: (415) 436-9682 ext 301 fax: (415) 436-9683 __________________________ Date: this 20th day of December, 2007 Shaye Wolf, Ph.D. Martha Palomino Tovar, Ph.D. Candidate Brendan Cummings Center for Biological Diversity Pursuant to Section 4(b) of the Endangered Species Act (“ESA”), 16 U.S.C. §1533(b), Section 553(3) of the Administrative Procedures Act, 5 U.S.C. § 553(e), and 50 C.F.R. §424.14(a), the Center for Biological Diversity (“Petitioner”) hereby petitions the Secretary of Commerce, through the National Marine Fisheries Service (“NMFS”), to list the ribbon seal (Histriophoca fasciata) as a threatened or endangered species and to designate critical habitat to ensure its survival and recovery. The Center for Biological Diversity (“Center”) is a non-profit, public interest environmental organization dedicated to the protection of native species and their habitats through science, policy, and environmental law. The Center has over 40,000 members in Alaska and throughout the United States. The Center and its members are concerned with the conservation of endangered species, including the ribbon seal, and the effective implementation of the ESA. -
Historical Perspectives Nobuyuki Miyazaki (Born 4 August 1946)
Aquatic Mammals 2012, 38(2), 189-203, DOI 10.1578/AM.38.2.2012.189 Historical Perspectives Nobuyuki Miyazaki (born 4 August 1946) Nobuyuki Miyazaki began his career as a research associate at the University of Ryukyus, Japan, obtaining his Ph.D. in 1975 under Professor Nishiwaki. He established a Japanese research team focused on marine pollution and hazardous chemicals using marine mammals as an indica- tor species. Dr. Miyazaki organized the research project “Coastal Marine Environment” that was conducted by United Nations University, Ocean Research Institute of The University of Tokyo, and Iwate Prefecture. He worked as general coor- dinator of the Japanese Society for Promotion of Science’s Multilateral Core Univer sity Program “Coastal Marine Science” with other distinguished scientists from five Asian countries. In collabora- tion with Dr. Y. Naito, he developed an advanced Nobuyuki Miyazaki (Photo courtesy of John Anderson) data logger and camera logger, and he also estab- lished the “Bio-Logging Science” program at the University of Tokyo. Since 1990, he has conducted international ecological research of Lake Baikal in cooperation with colleagues from Russia, the United Kingdom, Belgium, Switzerland, and the United States. Dr. Miyazaki has published more than 270 English and 13 Japanese peer-reviewed papers, nine English and 51 Japanese books, and seven Eng lish and 109 Japanese reports. He also has given 316 presentations at national and inter- national conferences. 190 Miyazaki Seal Survey in Eurasian Waters in Collaboration with Russian Scientists Nobuyuki Miyazaki, Ph.D. Professor Emeritus, The University of Tokyo, Japan E-mail: [email protected] I. -
Underwater Hearing and Communication in the Endangered Hawaiian Monk Seal Neomonachus Schauinslandi
Vol. 44: 61–78, 2021 ENDANGERED SPECIES RESEARCH Published January 28 https://doi.org/10.3354/esr01092 Endang Species Res OPEN ACCESS Underwater hearing and communication in the endangered Hawaiian monk seal Neomonachus schauinslandi Jillian M. Sills1,*, Kirby Parnell2,3, Brandi Ruscher2, Chloe Lew1, Traci L. Kendall4, Colleen Reichmuth1 1Institute of Marine Sciences, Long Marine Laboratory, University of California Santa Cruz, Santa Cruz, CA 95060, USA 2Department of Ocean Sciences, University of California Santa Cruz, Santa Cruz, CA 95064, USA 3Marine Mammal Research Program, Hawai‘i Institute of Marine Biology, University of Hawai‘i, Kaneohe, HI 96744, USA 4Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064, USA ABSTRACT: Hawaiian monk seals are among the most endangered marine mammals and the most basal of the phocid seals. The auditory biology of monk seals is compelling from behavioral, evolutionary, and conservation perspectives, but we presently lack substantive bioacoustic infor- mation for this species, with no formal descriptions of underwater vocalizations and limited data concerning hearing. These seals have been isolated for more than 10 million yr and have auditory structures differing from those of related species. Additionally, unlike other aquatically mating phocids, monk seals breed asynchronously and are not known to produce social calls in water. To address existing knowledge gaps, we trained a mature male Hawaiian monk seal to perform a psychophysical task while submerged. Detection thresholds were measured for narrowband sounds across the frequency range of hearing. We also conducted a year-round characterization of the seal’s spontaneous underwater vocalizations. This individual demonstrated best hearing between 0.2 and 33 kHz, with a lower high-frequency roll-off than that of related species. -
Letter to K. Baker, 1-29-07
Marine Mammal Commission 4340 East-West Highway, Room 905 Bethesda, MD 20814 29January 2007 Mr. Kyle Baker National Marine Fisheries Service 263 13th Avenue, South St. Petersburg, FL 33701 Dear Mr. Baker: The Marine Mammal Commission, in consultation with its Committee of Scientific Advisors on Marine Mammals, has reviewed the National Marine Fisheries Service’s 29 November 2006 Federal Register notice announcing its intent to conduct a review of the Caribbean monk seal, Monachus tropicalis, under the Endangered Species Act and requesting information on the species’ status. We have reviewed our files and, with great regret, we have concluded that the species is extinct and should be removed from the list of endangered and threatened species. Fossil and archeological evidence, along with sighting records, indicate that the species once occurred from the southeastern United States through the Bahamas and the Caribbean Sea. A review of those records by Rice (1973) concluded that the last authoritative sighting was of a small colony of animals at Seranilla Banks between Jamaica and the Yucatan Peninsula in 1952. A few other unconfirmed sightings were reported from the 1950s into the 1970s, but at least some of those were reported to involve escaped California sea lions (Gunter 1968 cited in Rice 1973). Although the species may have been extinct when the Endangered Species Act was passed in 1973, the Marine Mammal Commission wrote to the National Marine Fisheries Service on 26 January 1977 recommending that the Caribbean monk seal be listed as “endangered” under the Endangered Species Act and “depleted” under the Marine Mammal Protection Act. -
Petition to List Iliamna Lake Seal, a Distinct Population Segment of Pacific Harbor Seal (Phoca Vitulina Richardsi) Under the Endangered Species Act
BEFORE THE SECRETARY OF COMMERCE PETITION TO LIST ILIAMNA LAKE SEAL, A DISTINCT POPULATION SEGMENT OF PACIFIC HARBOR SEAL (PHOCA VITULINA RICHARDSI) UNDER THE ENDANGERED SPECIES ACT CENTER FOR BIOLOGICAL DIVERSITY NOVEMBER 19, 2012 Notice of Petition Rebecca M. Blank Acting Secretary of Commerce U.S. Department of Commerce 1401 Constitution Ave, NW Washington, D.C. 20230 Email: [email protected] Samuel Rauch Assistant Administrator for Fisheries 1315 East West Highway Silver Spring, MD 20910 Ph: (301) 427-8000 Email: [email protected] PETITIONER The Center for Biological Diversity PO Box 100599 Anchorage, AK 99510-0599 Ph: (907) 274-1110 Fax: (907) 258-6177 Date: November 19, 2012 Kiersten Lippmann Center for Biological Diversity Pursuant to Section 4(b) of the Endangered Species Act (“ESA”), 16 § 1533(b), Section 553(3) of the Administrative Procedures Act, 5 U.S.C. § 533(e), and 50 C.F.R. § 424.14(a), the Center for Biological Diversity (“Petitioner”) hereby petitions the Secretary of Commerce and the National Oceanographic and Atmospheric Administration (“NOAA”), through the National Marine Fisheries Service (“NMFS” or “NOAA Fisheries”), to list the Iliamna Lake seal as a threatened or endangered species and to designate critical habitat to ensure its survival and recovery. The Center for Biological Diversity (“Center”) is a non-profit, public interest environmental organization dedicated to the protection of native species and their habitats through science, policy, and environmental law. The Center has approximately 40,000 members, and over 474,000 members and online activists throughout the United States and internationally. The Center and its members are concerned with the conservation of endangered species, including seal species, and the effective implementation of the ESA. -
Subpart X—Taking and Importing of Marine Mammals
National Marine Fisheries Service/NOAA, Commerce § 218.230 without prior notification and an op- (Balaena mysticetus), Bryde’s whale portunity for public comment. Notifi- (Balaenoptera edeni), fin whale cation will be published in the FED- (Balaenoptera physalus), gray whale ERAL REGISTER within 30 days subse- (Eschrichtius robustus), humpback whale quent to the action. (Megaptera novaeangliae), minke whale (Balaenoptera acutorostrata), North At- Subparts S–W [Reserved] lantic right whale (Eubalaena glacialis), North Pacific right whale (Eubalena ja- Subpart X—Taking and Importing ponica), pygmy right whale of Marine Mammals; Navy (Caperamarginata), sei whale Operations of Surveillance (Balaenoptera borealis), southern right Towed Array Sensor System whale (Eubalaena australis), Low Frequency Active (2) Odontocetes–Andrew’s beaked (SURTASS LFA) Sonar whale (Mesoplodon bowdoini), Arnoux’s beaked whale (Berardius arnuxii), At- lantic spotted dolphin (Stenella fron- SOURCE: 77 FR 50316, Aug. 20, 2012, unless otherwise noted. talis), Atlantic white-sided dolphin (Lagenorhynchus acutus), Baird’s EFFECTIVE DATE NOTE: At 77 FR 50316, Aug. beaked whale (Berardius bairdii), Beluga 20, 2012, subpart X was added, effective Aug. 15, 2012, through Aug. 15, 2017. whale (Dephinapterus leucas), Blainville’s beaked whale (Mesoplodon § 218.230 Specified activity, level of densirostris), Chilean dolphin taking, and species. (Cephalorhynchus eutropia), Clymene Regulations in this subpart apply dolphin (Stenella clymene), only to the incidental taking of those Commerson’s dolphin (Cephalorhynchus marine mammal species specified in commersonii), common bottlenose dol- paragraph (b) of this section by the phin (Tursiops truncatus), Cuvier’s U.S. Navy, Department of Defense, beaked whale (Ziphiuscavirostris), Dall’s while engaged in the operation of no porpoise (Phocoenoides dalli), Dusky more than four SURTASS LFA sonar dolphin (Lagenorhynchus obscurus), systems conducting active sonar oper- dwarf sperm and pygmy sperm whales ations in areas specified in paragraph (Kogia simus and K. -
MASS TOURISM and the MEDITERRANEAN MONK SEAL
MASS TOURISM and the MEDITERRANEAN MONK SEAL The role of mass tourism in the decline and possible future extinction of Europe’s most endangered marine mammal, Monachus monachus William M. Johnson & David M. Lavigne International Marine Mammal Association 1474 Gordon Street, Guelph, Ontario, Canada N1L 1C8 ABSTRACT Mass tourism has been implicated in the decline of the Mediterranean monk seal (Monachus monachus) since the 1970s, when scientists first began reviewing the global status of the species. Since then, the scientific literature, recognising the inexorable process of disturbance and loss of habitat that this economic and social activity has produced along extensive stretches of Mediterranean coastline, has consistently identified tourism as among the most significant causes of decline affecting this critically-endangered species. Despite apparent consensus on this point, no serious attempt has been made to assess the tourist industry’s role, or to acknowledge and discuss its moral and financial responsibility, in the continuing decline and possible future extinction of M. monachus. In view of this, The Monachus Guardian 2 (2) November 1999 1 we undertook a review of existing literature to identify specific areas in which tourism has impacted the Mediterranean monk seal. Our results provide compelling evidence that mass tourism has indeed played a major role in the extirpation of the monk seal in several European countries, that it continues to act as a significant force of extinction in the last Mediterranean strongholds of the species, and that the industry exerts a generally negative influence on the design and operation of protected areas in coastal marine habitats. There are compelling reasons to conclude that unless the tourist industry can be persuaded to become an active and constructive partner in monk seal conservation initiatives, it will eventually ensure the extinction of the remaining monk seals in the Mediterranean. -
N044p061.Pdf
Vol. 44: 61–78, 2021 ENDANGERED SPECIES RESEARCH Published January 28 https://doi.org/10.3354/esr01092 Endang Species Res OPEN ACCESS Underwater hearing and communication in the endangered Hawaiian monk seal Neomonachus schauinslandi Jillian M. Sills1,*, Kirby Parnell2,3, Brandi Ruscher2, Chloe Lew1, Traci L. Kendall4, Colleen Reichmuth1 1Institute of Marine Sciences, Long Marine Laboratory, University of California Santa Cruz, Santa Cruz, CA 95060, USA 2Department of Ocean Sciences, University of California Santa Cruz, Santa Cruz, CA 95064, USA 3Marine Mammal Research Program, Hawai‘i Institute of Marine Biology, University of Hawai‘i, Kaneohe, HI 96744, USA 4Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064, USA ABSTRACT: Hawaiian monk seals are among the most endangered marine mammals and the most basal of the phocid seals. The auditory biology of monk seals is compelling from behavioral, evolutionary, and conservation perspectives, but we presently lack substantive bioacoustic infor- mation for this species, with no formal descriptions of underwater vocalizations and limited data concerning hearing. These seals have been isolated for more than 10 million yr and have auditory structures differing from those of related species. Additionally, unlike other aquatically mating phocids, monk seals breed asynchronously and are not known to produce social calls in water. To address existing knowledge gaps, we trained a mature male Hawaiian monk seal to perform a psychophysical task while submerged. Detection thresholds were measured for narrowband sounds across the frequency range of hearing. We also conducted a year-round characterization of the seal’s spontaneous underwater vocalizations. This individual demonstrated best hearing between 0.2 and 33 kHz, with a lower high-frequency roll-off than that of related species.