Survey of Federally-Funded Marine Mammal Research and Conservation
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Population Viability Analysis of the Florida Manatee (Trichechus Manatus Latirostris), 1976–1991
Population Viability Analysis of the Florida Manatee (Trichechus manatus latirostris), 1976–1991 MIRIAM MARMONTEL,*† STEPHEN R. HUMPHREY,‡ AND THOMAS J. O’SHEA§i *Department of Wildlife and Range Sciences, University of Florida, Gainesville, FL 32611, U.S.A. ‡College of Natural Resources and Environment, Box 118100, University of Florida, Gainesville, FL 32611, U.S.A. §National Biological Service, Sirenia Project, 412 NE 16th Ave., Gainesville, FL 32601, U.S.A. Abstract: Recent development of age-determination techniques for Florida manatees (Trichechus manatus lati- rostris) has permitted derivation of age-specific data on reproduction and survival of a sample of 1212 car- casses obtained throughout Florida from 1976–1991. Population viability analysis using these data projects a slightly negative growth rate (20.003) and an unacceptably low probability of persistence (0.44) over 1000 years. The main factors affecting population projections were adult survival and fecundity. A 10% increase in adult mortality would drive the population to extinction over a 1000-year time scale, whereas a 10% decrease in adult mortality would allow slow population growth. A 10% decrease in reproduction would also result in extinction. We conclude that management must focus on retaining and improving the conditions under which manatee demography operates. The major identified agent of mortality is boat-manatee collisions, and rapidly increasing numbers of humans and registered boats portend an increase in manatee mortality. Zon- ing of manatee-occupied waters for reductions in boating activity and speed is essential to safeguard the manatee population. If boating regulations being implemented by the state of Florida in each of 13 key coastal counties are completed, enforced, and effective, manatees and human recreation could coexist indefi- nitely. -
Chapter 20: Protecting Marine Mammals and Endangered Marine Species
Preliminary Report CHAPTER 20: PROTECTING MARINE MAMMALS AND ENDANGERED MARINE SPECIES Protection for marine mammals and endangered or threatened species from direct impacts has increased since the enactment of the Marine Mammal Protection Act in 1972 and the Endangered Species Act in 1973. However, lack of scientific data, confusion about permitting requirements, and failure to adopt a more ecosystem-based management approach have created inconsistent and inefficient protection efforts, particularly from indirect and cumulative impacts. Consolidating and coordinating federal jurisdictional authorities, clarifying permitting and review requirements for activities that may impact marine mammals and endangered or threatened species, increasing scientific research and public education, and actively pursuing international measures to protect these species are all improvements that will promote better stewardship of marine mammals, endangered or threatened species, and the marine ecosystem. ASSESSING THE THREATS TO MARINE POPULATIONS Because of their intelligence, visibility and frequent interactions with humans, marine mammals hold a special place in the minds of most people. Little wonder, then, that mammals are afforded a higher level of protection than fish or other marine organisms. They are, however, affected and harmed by a wide range of human activities. The biggest threat to marine mammals worldwide today is their accidental capture or entanglement in fishing gear (known as “bycatch”), killing hundreds of thousands of animals a year.1 Dolphins, porpoises and small whales often drown when tangled in a net or a fishing line because they are not able to surface for air. Even large whales can become entangled and tow nets or other gear for long periods, leading to the mammal’s injury, exhaustion, or death. -
Digest 2.2.Qxd
Volume 2, Number 2 2003 A G R A S E N T L T A S W E A I G N D D P O L I C Y http://www.olemiss.edu/orgs/SGLC Volume 2, Number 2 Sea Grant Law Digest 2003 Page 2 THE SEA GRANT LAW AND POLICY DIGEST is a bi-annual publication indexing the law review and other articles in the fields of ocean and coastal law and policy published within the previous six months. Its goal is to inform the Sea Grant community of recent research and facilitate access to those articles. The staff of the Digest can be reached at: the Sea Grant Law Center, Kinard Hall, Wing E - Room 256, P.O. Box 1848, University, MS 38677-1848, phone: (662) 915-7775, or via e-mail at [email protected] . Editor: Stephanie Showalter, J.D., M.S.E.L. Publication Design: Waurene Roberson This work is funded in part by the National Oceanic and Atmospheric Administration, U.S. Department of Commerce under Grant Number NA16RG2258, the Sea Grant Law Center, Mississippi Law Research Institute, and University of Mississippi Law Center. Valuable research assistance is provided by the University of Oregon Ocean and Coastal Law Center. The views expressed herein are those of the authors and do not necessarily reflect the views of NOAA or any of its sub-agencies. Graphics by @ Nova Development Corp., and NOAA. The University of Mississippi complies with all applicable laws regarding affirmative action and equal opportunity in all its activities and programs and does not discriminate against anyone pro- tected by law because of age, creed, color, national origin, race, religion, sex, handicap, veteran or other status. -
Endangered Species: the Marine Otter by Gale, Cengage Learning, Adapted by Newsela Staff on 04.20.18 Word Count 436 Level 400L
Endangered Species: The marine otter By Gale, Cengage Learning, adapted by Newsela staff on 04.20.18 Word Count 436 Level 400L Image 1. Marine otters are sometimes called "sea cats." Photo from Wikimedia Commons. Have you ever seen a sea otter? You might have spotted one in the ocean or at a zoo. Sea otters are one kind of otter. The marine otter is another kind. The marine otter lives in South America. It lives along the west coast. That is where the land touches the Pacific Ocean. This otter is sometimes called a sea cat. It is about the size of a cat. It has a long body. Its head is flat. The marine otter has tiny ears and long whiskers. It has short legs and webbed feet. This makes the otter a great swimmer. The otters feed on sea animals. They like crabs and oysters. They swim on their backs to eat. The otters put their catch on their chests. Then they grab a rock. They use it to crack open the hard shells. This article is available at 5 reading levels at https://newsela.com. Habitat And Population It is hard to count marine otters. They like to live alone. So they are not usually seen in big groups. Scientists think there are not many left. They do not know the exact number. But they think there might be only 2,000 marine otters in the wild today. Sea otters live in water all the time. Marine otters are different. They live on land. They always live in rocky places close to water, though. -
Issue 1, Dec 2019 Distribution and Abundance in India
OCEAN DIGEST Quarterly Newsletter of the Ocean Society of India Volume 6 | Issue 1 | Dec 2019 | ISSN 2394-1928 Ocean Digest Quarterly Newsletter of the Ocean Society of India Marine Mammals — Indian Scenario Chandrasekar Krishnamoorthy Centre for Marine Living Resources & Ecology Ministry of Earth Sciences, Kochi arine mammals, the most amazing marine organisms on earth, are often referred to as “sentinels” of ocean Porpoising - Striped dolphin health.M These include approximately 127 species belonging to three major taxonomic orders, namely Cetacea (whales, dolphins, and porpoises), Sirenia (manatees and dugong) and Carnivora (sea otters, polar bears and pinnipeds) (Jefferson et al., 2008). These organisms are known to inhabit oceans and seas, as well as estuaries, and are distributed from the polar to the tropical regions. These organisms are the top predators in many ocean food webs except the sirenians, which are herbivores. However, cetaceans become the dominant group of marine mammals, as well as widest geographic range. Marine mammals have been deemed “invaluable components” of the naval force as their natural senses are superior to technology in rough weather and noisy areas. India, with a rich diversity of marine mammals has a history of documenting these animals for the last 200 years. Leaping - Spinner dolphin However, until the year 2003, information on these organisms in our seas was restricted to incidental capture by fishing gears and stranding records (Vivekanandan and Jeyachandran, 2012). Published reports indicate that only a few scientific studies have addressed the distribution of marine mammals in the Indian EEZ, and there exist huge lacunae on the baseline information such as abundance and density for many species due to limited resources and lack of systematic surveys. -
THE CASE AGAINST Marine Mammals in Captivity Authors: Naomi A
s l a m m a y t T i M S N v I i A e G t A n i p E S r a A C a C E H n T M i THE CASE AGAINST Marine Mammals in Captivity The Humane Society of the United State s/ World Society for the Protection of Animals 2009 1 1 1 2 0 A M , n o t s o g B r o . 1 a 0 s 2 u - e a t i p s u S w , t e e r t S h t u o S 9 8 THE CASE AGAINST Marine Mammals in Captivity Authors: Naomi A. Rose, E.C.M. Parsons, and Richard Farinato, 4th edition Editors: Naomi A. Rose and Debra Firmani, 4th edition ©2009 The Humane Society of the United States and the World Society for the Protection of Animals. All rights reserved. ©2008 The HSUS. All rights reserved. Printed on recycled paper, acid free and elemental chlorine free, with soy-based ink. Cover: ©iStockphoto.com/Ying Ying Wong Overview n the debate over marine mammals in captivity, the of the natural environment. The truth is that marine mammals have evolved physically and behaviorally to survive these rigors. public display industry maintains that marine mammal For example, nearly every kind of marine mammal, from sea lion Iexhibits serve a valuable conservation function, people to dolphin, travels large distances daily in a search for food. In learn important information from seeing live animals, and captivity, natural feeding and foraging patterns are completely lost. -
Marine Mammals and Sea Turtles of the Mediterranean and Black Seas
Marine mammals and sea turtles of the Mediterranean and Black Seas MEDITERRANEAN AND BLACK SEA BASINS Main seas, straits and gulfs in the Mediterranean and Black Sea basins, together with locations mentioned in the text for the distribution of marine mammals and sea turtles Ukraine Russia SEA OF AZOV Kerch Strait Crimea Romania Georgia Slovenia France Croatia BLACK SEA Bosnia & Herzegovina Bulgaria Monaco Bosphorus LIGURIAN SEA Montenegro Strait Pelagos Sanctuary Gulf of Italy Lion ADRIATIC SEA Albania Corsica Drini Bay Spain Dardanelles Strait Greece BALEARIC SEA Turkey Sardinia Algerian- TYRRHENIAN SEA AEGEAN SEA Balearic Islands Provençal IONIAN SEA Syria Basin Strait of Sicily Cyprus Strait of Sicily Gibraltar ALBORAN SEA Hellenic Trench Lebanon Tunisia Malta LEVANTINE SEA Israel Algeria West Morocco Bank Tunisian Plateau/Gulf of SirteMEDITERRANEAN SEA Gaza Strip Jordan Suez Canal Egypt Gulf of Sirte Libya RED SEA Marine mammals and sea turtles of the Mediterranean and Black Seas Compiled by María del Mar Otero and Michela Conigliaro The designation of geographical entities in this book, and the presentation of the material, do not imply the expression of any opinion whatsoever on the part of IUCN concerning the legal status of any country, territory, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The views expressed in this publication do not necessarily reflect those of IUCN. Published by Compiled by María del Mar Otero IUCN Centre for Mediterranean Cooperation, Spain © IUCN, Gland, Switzerland, and Malaga, Spain Michela Conigliaro IUCN Centre for Mediterranean Cooperation, Spain Copyright © 2012 International Union for Conservation of Nature and Natural Resources With the support of Catherine Numa IUCN Centre for Mediterranean Cooperation, Spain Annabelle Cuttelod IUCN Species Programme, United Kingdom Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the sources are fully acknowledged. -
Complete Issue
ISSN 1023-9030 IUCN Otter Spec. Group Bull. 21 (2)/2004 IUCN OTTER SPECIALIST GROUP BULLETIN Volume 21 (2) October 2004 IUCN Otter Spec. Group Bull. 21(2) 2004 CONTENT Note from the Editor................................................................................................. 60 IUCN/SCC OSG GROUP In Memoriam Claus Reuther .................................................................................... 61 ARTICLES Assessing the Distribution of Reintroduced Populations of River Otters in 63 Pennsylvania (USA) – Development of a Landscape Level Approach .……………... First Physical Evidence of the Nearctic River Otter (Lontra canadensis) collected in 70 New Mexico, USA, since 1953 …………………………… ……………………….. High Mortality of Nearctic River Otters on a Florida, USA, Interstate Highway 76 during an Extreme Drought REPORTS Intraspecific Agonism between Giant Otters ……………………………………… 89 Preliminary Study of the Tracks of Captive Otters (Lutra lutra) as a Tool for Field Research ……………………………………………………………........................ 93 Literature..………………..............................................................................…....... 100 Congress Announcements.................................................................................….... 101 - 2 - IUCN Otter Spec. Group Bull. 21(2) 2004 IUCN OTTER SPECIALIST GROUP BULLETIN The IUCN Otter Specialist Group Bulletin appears biannually. Articles, reports, symposium announcements and information on recent publications are welcome. All submissions should be typed double-spaced. The submission -
Marine Mammal Noise Exposure Criteria: Updated Scientific Recommendations for Residual Hearing Effects Brandon L
Aquatic Mammals 2019, 45(2), 125-232, DOI 10.1578/AM.45.2.2019.125 Marine Mammal Noise Exposure Criteria: Updated Scientific Recommendations for Residual Hearing Effects Brandon L. Southall,1, 2 James J. Finneran,3 Colleen Reichmuth,2 Paul E. Nachtigall,4 Darlene R. Ketten,5, 6 Ann E. Bowles,7 William T. Ellison,8 Douglas P. Nowacek,9, 10 and Peter L. Tyack5, 11 1Southall Environmental Associates, Inc., 9099 Soquel Drive #8, Aptos, CA 95003, USA E-mail: [email protected] 2Institute of Marine Sciences, Long Marine Laboratory, University of California, Santa Cruz, Santa Cruz, CA 95060, USA 3U.S. Navy Marine Mammal Program, Space and Naval Warfare Systems Center Pacific, Code 71510, 53560 Hull Street, San Diego, CA 92152, USA 4Hawaii Institute of Marine Biology, University of Hawaii, 46-007 Lilipuna Road, Kaneohe, HI 96744, USA 5Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA 6Harvard Medical School, Department of Otology and Laryngology, Boston, MA 02114, USA 7Hubbs-SeaWorld Research Institute, 2595 Ingraham Street, San Diego, CA 92109, USA 8Marine Acoustics, Inc., 2 Corporate Place, Middletown, RI 02840, USA 9 Nicholas School of the Environment, Duke University Marine Laboratory, Beaufort, NC 28516, USA 10Pratt School of Engineering, Duke University, Durham, NC 27708, USA 11Sea Mammal Research Unit, Scottish Oceans Institute, University of St Andrews, St Andrews, Fife KY16 8LB, Scotland This publication is dedicated with great respect and admiration to Dr. Jeanette Thomas who was an original panel member, valued colleague, and dear friend. Jeanette was a champion of marine mammal science who set higher standards for all in terms of scholarship, integrity, and professionalism. -
The 2008 IUCN Red Listings of the World's Small Carnivores
The 2008 IUCN red listings of the world’s small carnivores Jan SCHIPPER¹*, Michael HOFFMANN¹, J. W. DUCKWORTH² and James CONROY³ Abstract The global conservation status of all the world’s mammals was assessed for the 2008 IUCN Red List. Of the 165 species of small carni- vores recognised during the process, two are Extinct (EX), one is Critically Endangered (CR), ten are Endangered (EN), 22 Vulnerable (VU), ten Near Threatened (NT), 15 Data Deficient (DD) and 105 Least Concern. Thus, 22% of the species for which a category was assigned other than DD were assessed as threatened (i.e. CR, EN or VU), as against 25% for mammals as a whole. Among otters, seven (58%) of the 12 species for which a category was assigned were identified as threatened. This reflects their attachment to rivers and other waterbodies, and heavy trade-driven hunting. The IUCN Red List species accounts are living documents to be updated annually, and further information to refine listings is welcome. Keywords: conservation status, Critically Endangered, Data Deficient, Endangered, Extinct, global threat listing, Least Concern, Near Threatened, Vulnerable Introduction dae (skunks and stink-badgers; 12), Mustelidae (weasels, martens, otters, badgers and allies; 59), Nandiniidae (African Palm-civet The IUCN Red List of Threatened Species is the most authorita- Nandinia binotata; one), Prionodontidae ([Asian] linsangs; two), tive resource currently available on the conservation status of the Procyonidae (raccoons, coatis and allies; 14), and Viverridae (civ- world’s biodiversity. In recent years, the overall number of spe- ets, including oyans [= ‘African linsangs’]; 33). The data reported cies included on the IUCN Red List has grown rapidly, largely as on herein are freely and publicly available via the 2008 IUCN Red a result of ongoing global assessment initiatives that have helped List website (www.iucnredlist.org/mammals). -
An Introduction to Marine Mammals: with a Focus on India
An Introduction to Marine Mammals: With a focus on India Mridula Srinivasan, Ph.D. Terra Marine Research Institute 2/14/2014 2013 Timi-Kurm Festival 1 Roadmap Marine Mammal Basics Why Marine Mammals are Unique Marine Mammal Types Cetaceans Cetaceans of India Studying Marine Mammals 2/14/2014 2 Mammals BASICS Nurse young Have hair Warm blooded Four-chambered heart Parental Care Lungs to breathe Same core body temperature 2/14/2014 3 Marine Mammal BASICS Nurse young Have hair Warm blooded Four-chambered heart Parental Care Lungs to breathe Same core body temperature 2/14/2014 4 Marine Mammal Basics Cont.… Gestation period range: 10-17.5 months 1 – 3 year birth interval breeding – migration (only whales) – feeding – calving – lactation – weaning – resting/playing 2/14/2014 5 Hippopotamus - Whales & Dolphins Bears - Seals Manatees & Dugongs - ELEPHANTS 2/14/2014 6 Whale Evolution VIDEO 2/14/2014 7 What makes marine mammals unique ? Breath holding (High Myoglobin) Live and reproduce for the most part in water Deep divers May drink salt water, get water from prey Longest migrations Blubber/fur (insulation) 2/14/2014 8 • Above and below water • No eyelashes • More rods then cones/some color vision http://2/14/2014cetus.ucsd.edu/voicesinthesea_org/videos/videos.html (VOICES OF THE SEA) 9 ~78 SPECIES OF WHALES, DOLPHINS, PORPOISES 2/14/2014 10 4 species (manatees and dugong) 2/14/2014 11 ~33 species of seals, sea lions, walrus 2/14/2014 12 Sea Otters Polar Bears Marine - related to weasels, Depend on ocean for food badgers,2/14/2014 river otters -
Marine Mammals of the US North Pacific & Arctic
Marine Mammals of the US North Pacific & Arctic 10 METER 0 10 FEET adult male Resident Killer Whale Blue Whale Orcinus orca subsp. Balaenoptera musculus adult female calf Bigg’s (transient) Killer Whale Orcinus orca subsp. Fin Whale Balaenoptera physalus Beluga or White Whale Delphinapterus leucas Sei Whale Balaenoptera borealis Sperm Whale Physeter macrocephalus adult female North Pacific Right Whale adult male Eubalaena japonica Baird’s Beaked Whale Berardius bairdii Minke Whale Balaenoptera acutorostrata Bowhead Whale Balaena mysticetus Cuvier’s Beaked Whale Ziphius cavirostris adult male Gray Whale Humpback Whale Eschrichtius robustus Megaptera novaeangliae adult female 180º 160ºW 140ºW calf ARCTIC OCEAN Marine Mammal Protection Act (MMPA) Stejneger’s Beaked Whale Beaufort Mesoplodon stejnegeri Sea In 1972, Congress enacted the NOAA Fisheries and the U.S. Fish and Wildlife Service are Chukchi 70ºN the lead federal agencies for enforcing this law to protect Design and illustrations: Uko Gorter (www.ukogorter.com) Sea MMPA, establishing a national Arctic Circle marine mammals. The MMPA protects all whales, dolphins, Alaska policy to help prevent the seals, sea lions, porpoises, manatees, polar bears, otters, NOAA Fisheries extinction or depletion of and walruses from human-induced harm. In the United Alaska Region States, NOAA Fisheries works with scientists, industry, and 60ºN 907-586-7221 Bering Sea Gulf of marine mammal populations conservation groups to develop measures that help to protect Alaska Alaska Fisheries Science Center from human activities. marine mammals from entanglement, ship strike, and other 206-526-4000 PACIFIC OCEAN activities that might cause these animals harm. TO REPORT STRANDED, ENTANGLED, INJURED, OR DEAD MARINE MAMMALS, CALL: NOAA FISHERIES 1-877-925-7773; ALASKA SEALIFE CENTER 1-888-774-7325 (SEAL); U.S.