DOCSLIB.ORG

A~ R File WEXFORD - WHALE

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

U.S. Department of Agriculture U.S. Government Publication Animal and Plant Health Inspection Service Wildlife Services • ., A~ r File WEXFORD - WHALE Fi,lii11g, i1<111 l,n111di11,l( , f;i11 1ii11 g, wool,·n n1ill ­ WHALE, any of a gro11p of' t· .,c:lusiv<'I~- aq11al1c ing, haco11 ;11H I l1a111 <·111 i11g, a11d brcwing are !ht· Jllammals that i11cl11dt·s the largest an in1 als that chief i11d11 s trit·,. Mari>!<' , slate, and granite arc ever lived. Whales (o rd e r Cetacea) a re fo1111d i11 q11arrit·d. The brm rl'gicllls produce poultry, cat­ a ll oceans and contiguous seas, and in certa in riv­ tl e, wheat, barley, potatoes, and dairy products. e rs and lakes of sou theastern Asia, tropical South Wexford was the first countv in l1Tland to he America, northe rn North Ame rica, and northern occupie d h y the English. An.Cil' nt castles and Eurasia. church ruins are near the town of Enniscorthy This article deals mainly with larger Illt'111- and Ferns. Population: (1981) 99.016. be rs of th e whale order. For further information on some small er whales, see BELUGA; D OLPHIN ; WEXFORD, wc·ks' brd, a town i11 s <>11tlw:1s t<'rn Ire­ J.:11.1.i-:11 \'°l 'II AI.E ; NAH \\'IIAI.; and PoHPOI SE . la nd, th<-' scat o f county Wexford. It is si tua ted at \\'halt's are t~•pi<'ally c haracterized by torpeclo­ tlH' mouth of the river Slauey, 70 miles ( I JO km) s l1 ap!'d bodies with forelimbs shaped as flip­ so11th o f' D11 Iii in. I 11d11 st rit·s incl 11d e brewing. pt·r, and 110 external hind limbs. Most w hales nwat c 11ri11 g, and the 111an111':i,·f1111· of textiles. ag- han· a cl 11r~al fi11 . a11d the tail is horizontal in con­ 1i, ·11ll111 :il i11qil,·11w111\ , "'" ' l11111il11w T11111i , 111 i, trn , t to tl,c • ,·,·,ti,·.,} tai l nf 1110 s! fislH's . A layc· r of i11q 1" 1l :111t to tl1<· 1·1·011t1111, ·. Tit< · ft1w11 takl', ifs 1,1,d,I,,., 111 11 f,., J,,., ti><' :1!1110,t l1 :ti1 It'" ~k ,11 . 11:111 11· f,orn the \Jt l1 c·,·1 lf11r·y i)a11i sli sl'ltle1ne11 t o l wl1il'l1 I,," '"' ,<' l1;1<'t'rn1s o r sweat glands. Tlie W:tt•sl.io1d. \V,·xford v.a, ilil' l1< ·:icl q11art< ·r, of'tll<' ,·v,·s :irt· ,n1all i11 c·on ,parison to body size, and n ·h,·llirn, of 17!J8. l'op1d:itit111 : (IDHI ) 11 ,J!J!i. tllt'n · ar<' 1111 t•xlt- rn a l l'ars. Adult wlial,·s an· ·l t11 IOtl 1, ·,·I ( 1.2 :lo 1111 ·1<- 1,) l1111g and W<' iglt fro111 '1S WEYDEN, Rogier van der. S,T VAN 1>1 -. 11 \\1 1-: Y1>1 :N, Jll1111 1d , lo 220 frn" (20 - 200,000 kg ). l\oc:11-: 11 . Whales swim by 111ea11s of up and down movements of the tail. The flippe rs f11n cti on as WEYL, vii, Hermann (1885- l\:J55), German mathe­ balancing and steering o rgans. The large balee n matician and mathematical physicist. Wey! was whales can attain a maximum speed of 16 mph born in Elmsborn, Germany, on Nov. 9, 1885, (26 km/h ), and some dolphins have been clocked and graduate d in 1908 from the Universit y of at speeds of up fo 20.5 mph (33 km/h). Cotli ngen, where he was David Hilbert's most The two groups o f living w hales are the ba­ gifted st 11dcnt. 11 is early work was deeply i nfl11- leen whales (Mys ti ceti), characterized by a filter­ enced by I lilbert's analytic approach, although feed ing mPchanism known as bale en, and the he la ter diverged fro111 his tt>a ch e r. In 19 13 he toothe d whales (Odontoceli), known for thei r was appoi1d1·d a prof,,, sor at tlH· llniv!'rsit y of complex t• c holncation svstcms. A third group, Ziirich, whnc he workt·d wi t!, All>nt Einstein. tlie Arc h:t<'Ot'l'li or Zt't1g~·odo11 ts, hel'a 111e extinct Fascinatt·d with E inslt' i11 's tlH ·orv of relativi­ about 25 million years ago. These primitive ty, Wey! d t·v<'lop,·d a 1111ifi<·d fi <•lil tl l('orv, in loothl'd whales art· neith<'r filter feed e rs nor whit'h 1· l< ·cfro111 ag1 1dit' and g ,a,·itafional (i<: lds cC'l1plocators. All tltn·t· groups of whales prob­ co11 ld he treat<"d as geo111etrical properties of ably ltad a common urigi 11 fro1n te rre st rial mam­ space-time. I II the HJ20's he s howed how quan­ mals. Studies s uggest that the most like ly ances­ tum-m<·c hanical phenomena co11l d he most easi­ tors of whales wpre deri,·ed from te rrestrial me­ ly expressed in terms of group theory. Ilis appli­ son ychids. The 111 e so11 yc- hids were a group of cati on of fnnction theory to geo1I1e try and his large-bod ied mammals (condyla rths) that lived work in a11aly tit' theory of 11111111,ers a11rl topology d11r i11g the Palem·c1H' and Eocene e poc hs more dist ingu ishe<l hin1 as 011e of lh t• 111osl universal than 50 million years ago. • mathematicians of the 20th century. The main ecological diffe re nce between the 111 1930, Wey] re t11nwd to Cottingen, on ly to baleen a nd toothed whales is in their place in the leave three years later in protest over Nazi treat­ food c ha in. The toothe d whales feed mainlv on nwnt o f his ) Pwish coll eague s. ll f' the n accept­ carnivores, including fish, squid, and octo.pus. <'d an a ppoi11t1ncnt at the l11 stit1tl e for Advanced The ir coni cal tef't h are for seizing and ho lding Study, in l'ri11 celo 11 , N.J., where lit· remained prey, which they swallow whole. Baleen until his d<·ath on IJec. 8, 1955. whales, o n the other hand, feed mainl y on vari­ STEVE l lA11111 s, University uf Wisconsin ous species of zooplan kton-s mall, large ly he r­ bivorous inve rte brates such as e uphausiids WEYMOUTH, w:i ',11 .,th, a town in t·astl'rII Massa­ (krill), cojwpods, and c<> rtain types of'amphipods. cl111 selb, in Norfolk county, ,,IJ011t 12 111il cs ( JV S1n:dl fi s 1 arc- al so eaten , especially in coastal km) southeast of Bosto n, on lloslon Bay. Al ­ waters. These food items are straine d fro m the tho ug h mainly a residential suburb, Weymouth seawater by mea ns of a mat formed by inter­ manufactures shoes, shoe counte rs, belting, e lec­ twined bristles attache d inside the baleen. tronics components, paper boxes, indus trial res­ The estimated life ex pectancies of whales ins, a nd chemicals . The town is made up of four range from less than 20 years for some of the major villages-Weymouth Landing and North, smaller species to 70 years for Baird's beaked East, and South Weymouth. A United States whales. Except for humans, the only predators naval air station is in South Weymouth. of large whales are kil le r whales (Orcinus area). Thomas Weston , an English me rc ha nt adven­ An y of the whales that live in polar waters a re turer, sent a party to establish a trading station a t vulnerable to ice e ntrapme nt and consequent Wessagusset, the Indian name for the present starvation or suffoca tion. town, in 1622. In 1634, 2 1 families from Wey­ Whales have long been hunte d by humans, mouth, England, arrived, and the town was in­ and some populations were brought to the verge corporat e d in September 1635. of extinction. Most large species are now pro­ Abigail Adams, wife of the second president tecte d by regulations of the International Whal­ of the Un ite d Stales, was born in Weymouth in ing Commission (IWC). All large whales are 1744. Her birthplace has be en res tored a nd comple te ly protected by the international Con­ opened to the public. Government is by repre­ vention for the Regulation of Whaling, e ffective .,t· 1il :il ivt' town 111<'<'li11 g. l'o p1dation : ri'.),(iOI. in l!lRn . 676 J li slorit':rlly !Ir,· '"'"' ,·al11:tlilc whale prod- 11cts wc·re !he h:tll'cn (also callee! whakhone) and the oi l dniV<·cl from l,l11hher. Until kerosirw hC'<':11111· :rvail:ihl,• in tlr<' l:rl,· l!ltlr n·ntirry, wh:rle oil was 11 sl'd c l, idly for li g lrtirr g. !),iring the 20th century, w hale oil was used in the prod11e­ tio11 of margarine, soaps, l11hricants, waxes, ex­ plosivc's, and 1111n1ero11s other products. S1wrm­ wlrale o il was ,·s1ll'c:ially val11ccl as a lriglr-q11:rlily lubricant. By tire HJHO's artificial s11 hslit 11lc •s had been found for all whale products. The most inrporlanl of these is a dC'sert plant native to the southwestern United States, the jojoba (S i111- mondsia rliinesis), which ean provide an eco­ nomic s11bst it11t e for sperm oil. v\lhale meat is ,till c·:rt,·11 hv th,· pc·opl,· ofa ft'W co1111tr iC's, h11t it '' II() lorr g,·~ :111 i111port:r11t p:rrl .
Recommended publications
  • Toothed Vs. Baleen Whales Monday

    Toothed Vs. Baleen Whales Monday

    SPOT THE DIFFERENCE: TOOTHED VS. BALEEN WHALES MONDAY Their classifications help to give you the answer, so what do you think the most obvious difference is in a toothed whale versus a baleen whale? Your clues are in the close-up photos, below! PHOTO: TASLI SHAW PHOTO: CINDY HANSEN Answer: The most obvious difference between a toothed whale and a baleen whale is the way that they feed and what’s inside their mouth. Toothed whales (including all dolphins and porpoises) have teeth, like we do, and they actively hunt fish, squid, and other sea creatures. Their teeth help them capture, bite, and tear their food into smaller pieces before swallowing. Baleen whales have several hundred plates that hang from their upper jaw, instead of teeth. These plates are made of keratin, the same substance as our hair and fingernails, and are used to filter food from the water or the sediment. Once the food has been trapped in the baleen plates, the whales will use their massive tongues to scrape the food off and swallow it. SPOT THE DIFFERENCE: TOOTHED VS. BALEEN WHALES TUESDAY The photos provided show specific prey types for resident orcas and for the gray whales that stop to feed in Saratoga Passage in the spring. Besides being two different species, what is another difference between these prey types? Who eats what and what makes you think that? Answer: The photos show Chinook salmon and ghost shrimp. Other than being two different species, their main difference is size! A toothed whale, like a resident orca, uses their teeth to capture, bite, and tear Chinook salmon into smaller pieces to be shared with other orcas in their family.
  • (Ziphius Cavirostris) at Isla Guadalupe, Mexico Therya, Vol

    (Ziphius Cavirostris) at Isla Guadalupe, Mexico Therya, Vol

    Therya E-ISSN: 2007-3364 [email protected] Asociación Mexicana de Mastozoología México Gallo-Reynoso, Juan Pablo; Hoyos-Padilla, Edgar Mauricio First stranding record of a Cuvier beaked whale (Ziphius cavirostris) at Isla Guadalupe, Mexico Therya, vol. 6, núm. 2, mayo, 2015, pp. 329-336 Asociación Mexicana de Mastozoología Baja California Sur, México Available in: http://www.redalyc.org/articulo.oa?id=402339248005 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative THERYA, 2015, Vol. 6 (2): 329-336 DOI: 10.12933/therya-15-272, ISSN 2007-3364 Primer registro de varamiento del Zifio de Cuvier (Ziphius cavirostris) en Isla Guadalupe, México First stranding record of a Cuvier beaked whale (Ziphius cavirostris) at Isla Guadalupe, Mexico Juan Pablo Gallo-Reynoso1* and Edgar Mauricio Hoyos-Padilla2 1Centro de Investigación en Alimentación y Desarrollo, A. C. Unidad Guaymas, Carretera al Varadero Nacional, km 6.6, Las Playitas, Guaymas, 85480, Sonora, México. E-mail: [email protected] (JPGR). 2Pelagios-Kakunjá A.C. Sinaloa 1540, 23070, La Paz, Baja California Sur, México. E-mail: [email protected] (EMHP). *Corresponding author. Introduction: A calf of a Cuvier beaked whale, Ziphius cavirostris, was found stranded at Isla Guadalupe, Mexico where this species have been observed before. Methods: A detailed necropsy was conducted to report the plausible stranding causes. The individual was measured. Results: The female calf was apparently a month old individual and was still suckling.
  • THE CASE AGAINST Marine Mammals in Captivity Authors: Naomi A

    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.
  • Description of a New Species of Beaked Whale (Berardius) Found in the North Pacific

    Description of a New Species of Beaked Whale (Berardius) Found in the North Pacific

    www.nature.com/scientificreports OPEN Description of a new species of beaked whale (Berardius) found in the North Pacifc Received: 30 November 2018 Tadasu K. Yamada1, Shino Kitamura2,3, Syuiti Abe3, Yuko Tajima1, Ayaka Matsuda3, Accepted: 4 July 2019 James G. Mead4 & Takashi F. Matsuishi3,5 Published: xx xx xxxx Two types of Berardius are recognised by local whalers in Hokkaido, Japan. The frst is the ordinary Baird’s beaked whale, B. bairdii, whereas the other is much smaller and entirely black. Previous molecular phylogenetic analyses revealed that the black type is one recognisable taxonomic unit within the Berardius clade but is distinct from the two known Berardius species. To determine the characteristics of the black type, we summarised external morphology and skull osteometric data obtained from four individuals, which included three individuals from Hokkaido and one additional individual from the United States National Museum of Natural History collection. The whales difered from all of their congeners by having the following unique characters: a substantially smaller body size of physically mature individuals, proportionately shorter beak, and darker body colour. Thus, we conclude that the whales are a third Berardius species. Beaked whales (Family Ziphiidae, Odontoceti, Cetacea) include the second largest number of species among toothed whale families. Teir preference for deep ocean waters, elusive habits, and long dive capacity1 make beaked whales hard to see and inadequately understood. A total of 22 species are currently recognized in six genera (Berardius, Hyperoodon, Indopacetus, Mesoplodon, Tasmacetus, and Ziphius)2. Te genus Berardius has two species, Baird’s beaked whale Berardius bairdii, found in the North Pacifc and adjacent waters, and Arnoux’s beaked whale B.
  • Genetic Structure of the Beaked Whale Genus Berardius in the North Pacific

    Genetic Structure of the Beaked Whale Genus Berardius in the North Pacific

    MARINE MAMMAL SCIENCE, 33(1): 96–111 (January 2017) Published 2016. This article is a U.S. Government work and is in the public domain in the USA DOI: 10.1111/mms.12345 Genetic structure of the beaked whale genus Berardius in the North Pacific, with genetic evidence for a new species PHILLIP A. MORIN1, Marine Mammal and Turtle Division, Southwest Fisheries Science Cen- ter, National Marine Fisheries Service, NOAA, 8901 La Jolla Shores Drive, La Jolla, California 92037, U.S.A. and Scripps Institution of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, California 92037, U.S.A.; C. SCOTT BAKER Marine Mammal Institute and Department of Fisheries and Wildlife, Oregon State University, 2030 SE Marine Science Drive, Newport, Oregon 07365, U.S.A.; REID S. BREWER Fisheries Technology, University of Alaska South- east, 1332 Seward Avenue, Sitka, Alaska 99835, U.S.A.; ALEXANDER M. BURDIN Kam- chatka Branch of the Pacific Geographical Institute, Partizanskaya Str. 6, Petropavlovsk- Kamchatsky, 683000 Russia; MEREL L. DALEBOUT School of Biological, Earth, and Environ- mental Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia; JAMES P. DINES Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, U.S.A.; IVAN D. FEDUTIN AND OLGA A. FILATOVA Faculty of Biology, Moscow State University, Moscow 119992, Russia; ERICH HOYT Whale and Dol- phin Conservation, Park House, Allington Park, Bridport, Dorset DT6 5DD, United King- dom; JEAN-LUC JUNG Laboratoire BioGEMME, Universite de Bretagne Occidentale, Brest, France; MORGANE LAUF Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 8901 La Jolla Shores Drive, La Jolla, California 92037, U.S.A.; CHARLES W.
  • Order CETACEA Suborder MYSTICETI BALAENIDAE Eubalaena Glacialis (Müller, 1776) EUG En - Northern Right Whale; Fr - Baleine De Biscaye; Sp - Ballena Franca

    Order CETACEA Suborder MYSTICETI BALAENIDAE Eubalaena Glacialis (Müller, 1776) EUG En - Northern Right Whale; Fr - Baleine De Biscaye; Sp - Ballena Franca

    click for previous page Cetacea 2041 Order CETACEA Suborder MYSTICETI BALAENIDAE Eubalaena glacialis (Müller, 1776) EUG En - Northern right whale; Fr - Baleine de Biscaye; Sp - Ballena franca. Adults common to 17 m, maximum to 18 m long.Body rotund with head to 1/3 of total length;no pleats in throat; dorsal fin absent. Mostly black or dark brown, may have white splotches on chin and belly.Commonly travel in groups of less than 12 in shallow water regions. IUCN Status: Endangered. BALAENOPTERIDAE Balaenoptera acutorostrata Lacepède, 1804 MIW En - Minke whale; Fr - Petit rorqual; Sp - Rorcual enano. Adult males maximum to slightly over 9 m long, females to 10.7 m.Head extremely pointed with prominent me- dian ridge. Body dark grey to black dorsally and white ventrally with streaks and lobes of intermediate shades along sides.Commonly travel singly or in groups of 2 or 3 in coastal and shore areas;may be found in groups of several hundred on feeding grounds. IUCN Status: Lower risk, near threatened. Balaenoptera borealis Lesson, 1828 SIW En - Sei whale; Fr - Rorqual de Rudolphi; Sp - Rorcual del norte. Adults to 18 m long. Typical rorqual body shape; dorsal fin tall and strongly curved, rises at a steep angle from back.Colour of body is mostly dark grey or blue-grey with a whitish area on belly and ventral pleats.Commonly travel in groups of 2 to 5 in open ocean waters. IUCN Status: Endangered. 2042 Marine Mammals Balaenoptera edeni Anderson, 1878 BRW En - Bryde’s whale; Fr - Rorqual de Bryde; Sp - Rorcual tropical.
  • National Progress Reports Japan – 2020 & 2019

    National Progress Reports Japan – 2020 & 2019

    NAMMCO/28/NPR/JP-2020-2019 NAMMCO ANNUAL MEETING 28 22-25 March 2021 Online MEETING OF THE COUNCIL DOCUMENT NPR/ NATIONAL PROGRESS REPORTS JAPAN – 2020 & 2019 JP-2020-2019 Submitted by Japan Action requested For information Japan ProgRep. Large Cetacean/2020 Japan. Progress report on large cetacean research, April 2019 to March 2020 COMPILED BY SATOKO INOUE Institute of Cetacean Research, 4-5 Toyomi-cho, Chuo-ku, Tokyo 104-0055, Japan This document summarizes the data and samples of large cetacean, which were collected by the Institute of Cetacean Research (ICR), National Research Institute of Far Seas Fisheries (NRIFSF) and Fisheries Agency of Japan (FAJ) from April 2019 to March 2020 and austral summer season 2019/20. Sighting data for abundance estimates of large cetaceans were collected in the western North Pacific, the Gulf of Alaska and the Antarctic during systematic sighting surveys. During the surveys, photo-id, biopsy and satellite tracking experiments on large cetaceans were also conducted. A large number of biological data and samples were collected during the last surveys of the New Scientific Whale Research Program in the western North Pacific (NEWREP-NP) and commercial whaling in Japan’s Exclusive Economic Zone (EEZ). Species and figures of bycatch and stranding of large cetaceans are based on the reports of prefecture governments to the FAJ, which compile reports from individual fishermen, fishery cooperative associations and the general public. Data and samples collected are being analyzed for contributing to the stock assessment and management of large cetaceans in the North Pacific. 1. SIGHTING DATA Dedicated sighting survey under the program Japanese Abundance and Stock structure Surveys in the Antarctic (JASS-A) in the Southern Ocean in the austral summer season 2019/20 (vessel: Yushin-Maru No.2).
  • Cetaceans: Whales and Dolphins

    Cetaceans: Whales and Dolphins

    CETACEANS: WHALES AND DOLPHINS By Anna Plattner Objective Students will explore the natural history of whales and dolphins around the world. Content will be focused on how whales and dolphins are adapted to the marine environment, the differences between toothed and baleen whales, and how whales and dolphins communicate and find food. Characteristics of specific species of whales will be presented throughout the guide. What is a cetacean? A cetacean is any marine mammal in the order Cetaceae. These animals live their entire lives in water and include whales, dolphins, and porpoises. There are 81 known species of whales, dolphins, and porpoises. The two suborders of cetaceans are mysticetes (baleen whales) and odontocetes (toothed whales). Cetaceans are mammals, thus they are warm blooded, give live birth, have hair when they are born (most lose their hair soon after), and nurse their young. How are cetaceans adapted to the marine environment? Cetaceans have developed many traits that allow them to thrive in the marine environment. They have streamlined bodies that glide easily through the water and help them conserve energy while they swim. Cetaceans breathe through a blowhole, located on the top of their head. This allows them to float at the surface of the water and easily exhale and inhale. Cetaceans also have a thick layer of fat tissue called blubber that insulates their internals organs and muscles. The limbs of cetaceans have also been modified for swimming. A cetacean has a powerful tailfin called a fluke and forelimbs called flippers that help them steer through the water. Most cetaceans also have a dorsal fin that helps them stabilize while swimming.
  • FC Inshore Cetacean Species Identification

    FC Inshore Cetacean Species Identification

    Falklands Conservation PO BOX 26, Falkland Islands, FIQQ 1ZZ +500 22247 [email protected] www.falklandsconservation.com FC Inshore Cetacean Species Identification Introduction This guide outlines the key features that can be used to distinguish between the six most common cetacean species that inhabit Falklands' waters. A number of additional cetacean species may occasionally be seen in coastal waters, for example the fin whale (Balaenoptera physalus), the humpback whale (Megaptera novaeangliae), the long-finned pilot whale (Globicephala melas) and the dusky dolphin (Lagenorhynchus obscurus). A full list of the species that have been documented to date around the Falklands can be found in Appendix 1. Note that many of these are typical of deeper, oceanic waters, and are unlikely to be encountered along the coast. The six species (or seven species, including two species of minke whale) described in this document are observed regularly in shallow, nearshore waters, and are the focus of this identification guide. Questions and further information For any questions about species identification then please contact the Cetaceans Project Officer Caroline Weir who will be happy to help you try and identify your sighting: Tel: 22247 Email: [email protected] Useful identification guides If you wish to learn more about the identification features of various species, some comprehensive field guides (which include all cetacean species globally) include: Handbook of Whales, Dolphins and Porpoises by Mark Carwardine. 2019. Marine Mammals of the World: A Comprehensive Guide to Their Identification by Thomas A. Jefferson, Marc A. Webber, and Robert L. Pitman. 2015. Whales, Dolphins and Seals: A Field Guide to the Marine Mammals of the World by Hadoram Shirihai and Brett Jarrett.
  • New Finds of Giant Raptorial Sperm Whale Teeth (Cetacea, Physeteroidea) from the Westerschelde Estuary (Province of Zeeland, the Netherlands)

    New Finds of Giant Raptorial Sperm Whale Teeth (Cetacea, Physeteroidea) from the Westerschelde Estuary (Province of Zeeland, the Netherlands)

    1 Online Journal of the Natural History Museum Rotterdam, with contributions on zoology, paleontology and urban ecology deinsea.nl New finds of giant raptorial sperm whale teeth (Cetacea, Physeteroidea) from the Westerschelde Estuary (province of Zeeland, the Netherlands) Jelle W.F. Reumer 1,2, Titus H. Mens 1 & Klaas Post 2 1 Utrecht University, Faculty of Geosciences, P.O. Box 80115, 3508 TC Utrecht, the Netherlands 2 Natural History Museum Rotterdam, Westzeedijk 345 (Museumpark), 3015 AA Rotterdam, the Netherlands ABSTRACT Submitted 26 June 2017 Two large sperm whale teeth were found offshore from Breskens in the Westerschelde Accepted 28 July 2017 estuary. Comparison shows they share features with the teeth of the stem physteroid Published 23 August 2017 Zygophyseter, described from the Late Miocene of southern Italy. Both teeth are however significantly larger than the teeth of theZygophyseter type material, yet still somewhat Author for correspondence smaller than the teeth of the giant raptorial sperm whale Livyatan melvillei, and confirm the Jelle W.F. Reumer: presence of so far undescribed giant macroraptorial sperm whales in the Late Miocene of [email protected] The Netherlands. Editors of this paper Keywords Cetacea, Odontoceti, Westerschelde, Zygophyseter Bram W. Langeveld C.W. (Kees) Moeliker Cite this article Reumer, J.W.F., Mens, T.H. & Post, K. 2017 - New finds of giant raptorial sperm whale teeth (Cetacea, Physeteroidea) from the Westerschelde Estuary (province of Copyright Zeeland, the Netherlands) - Deinsea 17: 32 - 38 2017 Reumer, Mens & Post Distributed under Creative Commons CC-BY 4.0 DEINSEA online ISSN 2468-8983 INTRODUCTION presence of teeth in both maxilla and mandibula they are iden- Fossil Physeteroidea are not uncommon in Neogene marine tified as physeteroid teeth (Gol’din & Marareskul 2013).
  • Subsurface and Nighttime Behaviour of Pantropical Spotted Dolphins in Hawai′I

    Subsurface and Nighttime Behaviour of Pantropical Spotted Dolphins in Hawai′I

    Color profile: Generic CMYK printer profile Composite Default screen 988 Subsurface and nighttime behaviour of pantropical spotted dolphins in Hawai′i Robin W. Baird, Allan D. Ligon, Sascha K. Hooker, and Antoinette M. Gorgone Abstract: Pantropical spotted dolphins (Stenella attenuata) are found in both pelagic waters and around oceanic is- lands. A variety of differences exist between populations in these types of areas, including average group sizes, extent of movements, and frequency of multi-species associations. Diving and nighttime behaviour of pantropical spotted dolphins were studied near the islands of Maui and Lana′i, Hawai′i, in 1999. Suction-cup-attached time–depth recorder/VHF-radio tags were deployed on six dolphins for a total of 29 h. Rates of movements of tagged dolphins were substantially lower than reported in pelagic waters. Average diving depths and durations were shallower and shorter than reported for other similar-sized odontocetes but were similar to those reported in a study of pantropical spotted dolphins in the pelagic waters of the eastern tropical Pacific. Dives (defined as >5 m deep) at night were deeper (mean = 57.0 m, SD = 23.5 m, n = 2 individuals, maximum depth 213 m) than during the day (mean = 12.8 m, SD = 2.1 m, n = 4 individuals, maximum depth 122 m), and swim velocity also increased after dark. These results, together with the series of deep dives recorded immediately after sunset, suggest that pantropical spotted dolphins around Hawai′i feed primarily at night on organisms associated with the deep-scattering layer as it rises up to the surface after dark.
  • Marine Mammal Taxonomy

    Marine Mammal Taxonomy

    Marine Mammal Taxonomy Kingdom: Animalia (Animals) Phylum: Chordata (Animals with notochords) Subphylum: Vertebrata (Vertebrates) Class: Mammalia (Mammals) Order: Cetacea (Cetaceans) Suborder: Mysticeti (Baleen Whales) Family: Balaenidae (Right Whales) Balaena mysticetus Bowhead whale Eubalaena australis Southern right whale Eubalaena glacialis North Atlantic right whale Eubalaena japonica North Pacific right whale Family: Neobalaenidae (Pygmy Right Whale) Caperea marginata Pygmy right whale Family: Eschrichtiidae (Grey Whale) Eschrichtius robustus Grey whale Family: Balaenopteridae (Rorquals) Balaenoptera acutorostrata Minke whale Balaenoptera bonaerensis Arctic Minke whale Balaenoptera borealis Sei whale Balaenoptera edeni Byrde’s whale Balaenoptera musculus Blue whale Balaenoptera physalus Fin whale Megaptera novaeangliae Humpback whale Order: Cetacea (Cetaceans) Suborder: Odontoceti (Toothed Whales) Family: Physeteridae (Sperm Whale) Physeter macrocephalus Sperm whale Family: Kogiidae (Pygmy and Dwarf Sperm Whales) Kogia breviceps Pygmy sperm whale Kogia sima Dwarf sperm whale DOLPHIN R ESEARCH C ENTER , 58901 Overseas Hwy, Grassy Key, FL 33050 (305) 289 -1121 www.dolphins.org Family: Platanistidae (South Asian River Dolphin) Platanista gangetica gangetica South Asian river dolphin (also known as Ganges and Indus river dolphins) Family: Iniidae (Amazon River Dolphin) Inia geoffrensis Amazon river dolphin (boto) Family: Lipotidae (Chinese River Dolphin) Lipotes vexillifer Chinese river dolphin (baiji) Family: Pontoporiidae (Franciscana)