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Sharks for the Aquarium and Considerations for Their Selection1 Alexis L
FA179 Sharks for the Aquarium and Considerations for Their Selection1 Alexis L. Morris, Elisa J. Livengood, and Frank A. Chapman2 Introduction The Lore of the Shark Sharks are magnificent animals and an exciting group Though it has been some 35 years since the shark in Steven of fishes. As a group, sharks, rays, and skates belong to Spielberg’s Jaws bit into its first unsuspecting ocean swim- the biological taxonomic class called Chondrichthyes, or mer and despite the fact that the risk of shark-bite is very cartilaginous fishes (elasmobranchs). The entire supporting small, fear of sharks still makes some people afraid to swim structure of these fish is composed primarily of cartilage in the ocean. (The chance of being struck by lightning is rather than bone. There are some 400 described species of greater than the chance of shark attack.) The most en- sharks, which come in all different sizes from the 40-foot- grained shark image that comes to a person’s mind is a giant long whale shark (Rhincodon typus) to the 2-foot-long conical snout lined with multiple rows of teeth efficient at marble catshark (Atelomycterus macleayi). tearing, chomping, or crushing prey, and those lifeless and staring eyes. The very adaptations that make sharks such Although sharks have been kept in public aquariums successful predators also make some people unnecessarily since the 1860s, advances in marine aquarium systems frightened of them. This is unfortunate, since sharks are technology and increased understanding of shark biology interesting creatures and much more than ill-perceived and husbandry now allow hobbyists to maintain and enjoy mindless eating machines. -
Hyperbaric Physiology the Rouse Story Arrival at Recompression
Hyperbaric Physiology The Rouse Story • Oct 12, 1992, off the New Jersey coast • father/son team of experienced divers • explore submarine wreck in 230 ft (70 m) • breathing compressed air • trapped in wreck & escaped with no time for decompression Chris and Chrissy Rouse Arrival at recompression Recompression efforts facility • Both divers directly ascend to dive boat • Recompression starts about 3 hrs after • Helicopter arrives at boat in 1 hr 27 min ascent • Bronx Municipal Hospital recompression facility – put on pure O2 and compressed to 60 ft – Chris (39 yrs) pronounced dead • extreme pain as circulation returned – compressed to 165 ft, then over 5.5 hrs – Chrissy (22 yrs) gradually ascended back to 30 ft., lost • coherent and talking consciousness • paralysis from chest down • no pain – back to 60 ft. Heart failure and death • blood sample contained foam • autopsy revealed that the heart contained only foam Medical Debriefing Gas Laws • Boyle’s Law • Doctors conclusions regarding their – P1V1 = P2V2 treatment • Dalton’s Law – nothing short of recompression to extreme – total pressure is the sum of the partial pressures depths - 300 to 400 ft • Henry’s Law – saturation treatment lasting several days – the amt of gas dissolved in liquid at any temp is – complete blood transfusion proportional to it’s partial pressure and solubility – deep helium recompression 1 Scuba tank ~ 64 cf of air Gas problems during diving Henry, 1 ATM=33 ft gas (10 m) dissovled = gas Pp & tissue • Rapture of the deep (Nitrogen narcosis) solubility • Oxygen -
The Mississippi River Find
The Journal of Diving History, Volume 23, Issue 1 (Number 82), 2015 Item Type monograph Publisher Historical Diving Society U.S.A. Download date 04/10/2021 06:15:15 Link to Item http://hdl.handle.net/1834/32902 First Quarter 2015 • Volume 23 • Number 82 • 23 Quarter 2015 • Volume First Diving History The Journal of The Mississippi River Find Find River Mississippi The The Journal of Diving History First Quarter 2015, Volume 23, Number 82 THE MISSISSIPPI RIVER FIND This issue is dedicated to the memory of HDS Advisory Board member Lotte Hass 1928 - 2015 HISTORICAL DIVING SOCIETY USA A PUBLIC BENEFIT NONPROFIT CORPORATION PO BOX 2837, SANTA MARIA, CA 93457 USA TEL. 805-934-1660 FAX 805-934-3855 e-mail: [email protected] or on the web at www.hds.org PATRONS OF THE SOCIETY HDS USA BOARD OF DIRECTORS Ernie Brooks II Carl Roessler Dan Orr, Chairman James Forte, Director Leslie Leaney Lee Selisky Sid Macken, President Janice Raber, Director Bev Morgan Greg Platt, Treasurer Ryan Spence, Director Steve Struble, Secretary Ed Uditis, Director ADVISORY BOARD Dan Vasey, Director Bob Barth Jack Lavanchy Dr. George Bass Clement Lee Tim Beaver Dick Long WE ACKNOWLEDGE THE CONTINUED Dr. Peter B. Bennett Krov Menuhin SUPPORT OF THE FOLLOWING: Dick Bonin Daniel Mercier FOUNDING CORPORATIONS Ernest H. Brooks II Joseph MacInnis, M.D. Texas, Inc. Jim Caldwell J. Thomas Millington, M.D. Best Publishing Mid Atlantic Dive & Swim Svcs James Cameron Bev Morgan DESCO Midwest Scuba Jean-Michel Cousteau Phil Newsum Kirby Morgan Diving Systems NJScuba.net David Doubilet Phil Nuytten Dr. -
Scuba Diving History
Scuba diving history Scuba history from a diving bell developed by Guglielmo de Loreno in 1535 up to John Bennett’s dive in the Philippines to amazing 308 meter in 2001 and much more… Humans have been diving since man was required to collect food from the sea. The need for air and protection under water was obvious. Let us find out how mankind conquered the sea in the quest to discover the beauty of the under water world. 1535 – A diving bell was developed by Guglielmo de Loreno. 1650 – Guericke developed the first air pump. 1667 – Robert Boyle observes the decompression sickness or “the bends”. After decompression of a snake he noticed gas bubbles in the eyes of a snake. 1691 – Another diving bell a weighted barrels, connected with an air pipe to the surface, was patented by Edmund Halley. 1715 – John Lethbridge built an underwater cylinder that was supplied via an air pipe from the surface with compressed air. To prevent the water from entering the cylinder, greased leather connections were integrated at the cylinder for the operators arms. 1776 – The first submarine was used for a military attack. 1826 – Charles Anthony and John Deane patented a helmet for fire fighters. This helmet was used for diving too. This first version was not fitted to the diving suit. The helmet was attached to the body of the diver with straps and air was supplied from the surfa 1837 – Augustus Siebe sealed the diving helmet of the Deane brothers’ to a watertight diving suit and became the standard for many dive expeditions. -
Whale Shark Rhincodon Typus Populations Along the West Coast of the Gulf of California and Implications for Management
Vol. 18: 115–128, 2012 ENDANGERED SPECIES RESEARCH Published online August 16 doi: 10.3354/esr00437 Endang Species Res Whale shark Rhincodon typus populations along the west coast of the Gulf of California and implications for management Dení Ramírez-Macías1,2,*, Abraham Vázquez-Haikin3, Ricardo Vázquez-Juárez1 1Centro de Investigaciones Biológicas del Noroeste, Mar Bermejo 195, Col. Playa Palo de Santa Rita, La Paz, Baja California Sur 23096, Mexico 2Tiburón Ballena México de Conciencia México, Manatí 4802, Col. Esperanza III, La Paz, Baja California Sur 23090, Mexico 3Asociación de Pesca Deportiva y Ecoturismo de Bahía de los Ángeles, Domicilio conocido Bahía de los Ángeles, Baja California 22980, Mexico ABSTRACT: We used photo-identification data collected from 2003 through 2009 to estimate pop- ulation structure, site fidelity, abundance, and movements of this species along the west coast of the Gulf of California to make recommendations for effective conservation and management. Of 251 whale sharks identified from 1784 photographs, 129 sharks were identified in Bahía de Los Ángeles and 125 in Bahía de La Paz. Only juveniles (mostly small) were found in these 2 bays. At Isla Espíritu Santo, we identified adult females; at Gorda Banks we identified 15 pregnant females. High re-sighting rates within and across years provided evidence of site fidelity among juvenile sharks in the 2 bays. Though the juveniles were not permanent residents, they used the areas regularly from year to year. A proportion of the juveniles spent days to a month or more in the coastal waters of the 2 bays before leaving, and periods of over a month outside the study areas before entering the bays again. -
Research and Conservation at Georgia Aquarium, Inc
RESEARCH AND CONSERVATION AT GEORGIA AQUARIUM, INC. Georgia Aquarium is committed to the research and conservation of aquatic animals around the world. As a leader in marine research, Georgia Aquarium contributes to the advancement of knowledge of our blue planet by studying animals here at the Aquarium and in their natural environments. Since opening, members of the Aquarium’s research team have participated in nearly 100 funded research projects and authored more than 130 peer-reviewed publications and conference appearances. Our researchers collaborate with scientists around the world to understand our aquatic world so that we may conserve it for generations to come. Conservation Field Station The Georgia Aquarium Conservation Field Station (GACFS) in Marineland, Fla., is dedicated to the research and rescue of dolphins and whales in northeast Florida. The GACFS team responds to marine mammal strandings and distress calls, and researchers contribute to a recurring photo identification survey that documents the resident bottlenose dolphin population in northern Florida. The GACFS is also committed to community outreach, with school outreach courses, camps and stranding awareness programs to educate the public. ONGOING AND MILESTONE RESEARCH & CONSERVATION EFFORTS Whale Sharks Georgia Aquarium is a worldwide leader in whale shark research and conservation. We’ve sent teams to learn more about these gentle giants off the coast of Mexico, Taiwan, the Galapagos Islands and Saint Helena, an island in the middle of the South Atlantic Ocean. In 2009, our joint studies with the Project Domino consortium led to the Mexican government’s creation of the Whale Shark Biosphere Reserve, a protected area for this vulnerable species in Yucatan, Mexico. -
NPOA Sharks Booklet.Indd
National Plan of Action for the Conservation and Management of Sharks (NPOA-Sharks) November 2013 South Africa Department of Agriculture, Forestry and Fisheries Private Bag X2, Rogge Bay, 8012 Tel: 021 402 3911 Fax: +27 21 402 3364 www.daff.gov.za Design and Layout: FNP Communications and Gerald van Tonder Photographs courtesy of: Department of Agriculture, Forestry and Fisheries (DAFF), Craig Smith, Charlene da Silva, Rob Tarr Foreword South Africa’s Exclusive Economic Zone is endowed with a rich variety of marine living South Africa is signatory to the Code of Conduct for Responsible Fisheries – voluntarily agreed to by members of the United Nations Food and Agriculture Organisation (FAO) – and, as such, is committed to the development and implementation of National Plans of Action (NPOAs) as adopted by the twenty-third session of the FAO Committee on Fisheries in February 1999 and endorsed by the FAO Council in June 1999. Seabirds – aimed at reducing incidental catch and promoting the conservation of seabirds Fisheries and now regularly conducts Ecological Risk Assessments for all the commercial practices. Acknowledging the importance of maintaining a healthy marine ecosystem and the possibility of major detrimental effects due to the disappearance of large predators, South from the list of harvestable species. In accordance with international recommendations, South Africa subsequently banned the landing of a number of susceptible shark species, including oceanic whitetip, silky, thresher and hammerhead sharks. improves monitoring efforts for foreign vessels discharging shark products in its ports. To ensure long-term sustainability of valuable, but biologically limited, shark resources The NPOA-Sharks presented here formalises and streamlines ongoing efforts to improve conservation and management of sharks caught in South African waters. -
Sylvia Earle Background Information
Sylvia Earle Background Information Birth and Childhood Home She was born in Gibbs town, NJ on August 30, 1935. Her early childhood years were on a farm where there were many woods to explore. One of her favorite places was a pond. Her parent, particularly her mother was very influential in teaching her respect for animals. She always emphasized putting animals back where they were found after observing them. Sylvia took notes as a young child on the things that she observed. They also taught her not to fear the unknown. Horseshoe Crab Story Sylvia as a little girl at the beach was curious about the horseshoe crabs and how they moved. She was also concerned that they were stranded on the beach. She tried to pick them up, turn them around and sent them back to the ocean, not realizing that they were coming up on shore to lay their eggs and that she was really interfering with their mating. (see additional notes on horseshoe crabs) Reading As a child she liked to read. She liked science fiction, fairy tales, and animal stories. As she got a little older, she found that she liked non-fiction books even better. One of her favorite books was by William Beebe name Half Mile Down. He wrote about going down in the ocean in a vehicle like a submarine. In her book Sea Change and some of her other writings and interviews she refers to it frequently. After reading that book she started reading more non-fiction books and began liking the encyclopedia. -
Observations on the Reproductive Cycles of Some Viviparous North American Sharks
aqua, International Journal of Ichthyology Observations on the reproductive cycles of some viviparous North American sharks José I. Castro NOAA, National Marine Fisheries Service, Southeast Fisheries Science Center at Mote Marine Laboratory, 1600 Ken Thompson Pkwy, Sarasota, Florida 34236, USA. E-mail: [email protected] Received: 07 July 2009 – Accepted: 23 September 2009 Abstract gleicher Vitellogenese und Trächtigkeit sowie kontinuier- The reproductive cycle of sharks is defined by how often licher Ovulation. Squalus acanthias zeigt den dornhai-typis- a species breeds and consists of two periods: vitellogenesis chen zweijährigen Fortpflanzungszyklus mit parallel and gestation. These two periods can run concurrently or laufender Vitellogenese und Trächtigkeit. Die Haie der Gat- consecutively, and the duration of each period is variable. tungen Carcharhinus, Sphyrna (teilweise) und Ginglymostoma Together, the periods of vitellogenesis and gestation deter- bekommen alle zwei Jahre Nachwuchs, Dottereinlagerung mine the length of the reproductive cycle. The genera Rhi- und Trächtigkeit folgen aufeinander. Bei Galeocerdo cuvier im zoprionodon, Mustelus, and some Sphyrna exhibit annual West-Atlantik dauert die Trächtigkeit 12 Monate, der Zyklus cycles with concurrent vitellogenesis and gestation, and insgesamt dürfte zweijährig sein. Carcharhinus obscurus hat thus, they produce one brood each year. Carcharias taurus eine 18-monatige Trächtigkeitsphase und wahrscheinlich females apparently have a biennial reproductive cycle with einen dreijährigen Fort pflan zungszyklus. Der zweijährige discontinuous ovulation. Alopias spp. exhibit an annual Zyklus mit den verschiedenen Varianten kommt also bei cycle with concurrent vitellogenesis and gestation, and have Haien unterschiedlicher stammesgeschichtlicher Herkunft continuous ovulation. Squalus acanthias has a squaloid vor, so bei Angehörigen von Carcharhinus, Squalus und Orec- biennial cycle with concurrent vitellogenesis and gestation. -
A Preliminary Assessment of Exploited Reef-Fish Populations at Kamiali Wildlife Management Area, Papua New Guinea
A Preliminary Assessment of Exploited Reef-fish Populations at Kamiali Wildlife Management Area, Papua New Guinea Ken Longenecker, Allen Allison, Holly Bolick, Shelley James, Ross Langston, Richard Pyle, David Pence, and Simon Talbot Honolulu, Hawaii December 2009 COVER Conducting a laser-videogrammetry survey while ascending from a 67 m dive on an offshore pinnacle at Kamiali Wildlife Management Area. Photograph by Simon Talbot. A Preliminary Assessment of Exploited Reef-fish Populations at Kamiali Wildlife Management Area, Papua New Guinea Ken Longenecker, Allen Allison, Holly Bolick, Shelley James, Ross Langston, and Richard Pyle Pacific Biological Survey Bishop Museum Honolulu, Hawaii 96817, USA David Pence University of Hawaii Diving Safety Program Honolulu, Hawaii 96822, USA Simon Talbot University of Tasmania & Tasmanian Aquaculture and Fisheries Institute Hobart, Tasmania 7001, Australia Bishop Museum Technical Report 49 Honolulu, Hawaii December 2009 Bishop Museum Press 1525 Bernice Street Honolulu, Hawai‘i Copyright © 2009 Bishop Museum All Rights Reserved Printed in the United States of America ISSN 1085-455X Contribution No. 2009-017 to the Pacific Biological Survey Contents EXECUTIVE SUMMARY ................................................................................................ 8 INTRODUCTION .............................................................................................................. 9 METHODS ...................................................................................................................... -
Now I Know Better
Now I Know Better BY CATHY CHURCH never earned my dive instructor certification because •1 I’ve only ever wanted to teach photography, not scuba. I am, however, a Professional Association of Diving J Instructors (PADI) limited field specialty instructor. To be that, I needed to be a divemaster, which meant I had get my rescue certification. Rescue was a class I very much wanted to do anyway, even though I had taken it unofficially many, many years ago and have actually rescued several divers in my 45 years of diving. THE EVENT I had a student who wanted to take an underwater photo class with me on my private photo boat, and she brought her son along. The son was a certified diver, but I knew that neither I nor his mother would be able to pay much attention to him while we were engaged in the photography class. So I assigned a dive instructor from my staff to be his buddy. Toward the end of our dive I looked down and saw the son was deeper than we were. Since we were close to our time limit, I became concerned about the possibility he and the instructor were too deep and had been down too long. I got the instructor’s attention and vehemently indicated that he should get the son back to the line for ascent. I turned to my student and started toward the mooring Don’t be complacent or rely too heavily on other divers’ skills. Lean line. I looked back just in time to watch her son do a rapid, administer oxygen and basic first aid. -
Underwater Photographyphotography a Web Magazine
UnderwaterUnderwater PhotographyPhotography a web magazine Oct/Nov 2002 Nikon D100 housings Fuji S2 housing Sony F707 housing Kodak DCS Pro 14n Sperm whale Nai’a liveaboard U/w photojournalist - Jack Jackson Henry the seadragon Scilly Seals Lights & divers Easy macro British fish Underwater tripod Visions 2002 UwP 1 What links these sites? Turn to page 7 to find out... UwP 2 UnderwaterUnderwater PhotographyPhotography a web magazine Oct/Nov 2002 e mail [email protected] Contents 4 Travel & events 30 Meet Henry 43 Easy macro 8 New products 14 Sperm whale by Andy & Angela Heath with Ee wan Khoo 35 Scilly Seals 47 British fish with Tony Wu 19 Nai’a liveaboard with Will & Demelza by Mark Webster Posslethwaite 54 Size matters 35 Lights & divers by Jukka Nurminen & Alex Mustard by Pete Atkinson 25 U/w photojournalist by Martin Edge Cover photo by Tony Wu 58 Visions 2002 by Jack Jackson UwP 3 Travel & events Jim Breakell Tahiti talk at Dive Show, Oct 12/13 2002 In September Jim Breakell of Scuba Safaris went on a fact finding trip to the Pacific. First off he went to Ryrutu for for a few days humpback whale watching, then a week on the inaugural trip of the Tahiti Aggressor and then on to Bora Bora (what a hard life he has!) He will be giving an illustrated talk about his trip at the Dive Show in Birmingham on October 12/13th 2002. For more information contact Scuba Safaris, PO Box 8, Edenbridge, Kent TN8 7ZS. Tel 01342 851196. www.scuba-safaris.com John Boyle video trip May 2003 INVITATION John Boyle will be hosting a video diving trip from Bali to Komodo on Kararu next year.