Whales Are Family
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Classification of Mammals 61
© Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FORCHAPTER SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION Classification © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC 4 NOT FORof SALE MammalsOR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC. NOT FOR SALE OR DISTRIBUTION. 2ND PAGES 9781284032093_CH04_0060.indd 60 8/28/13 12:08 PM CHAPTER 4: Classification of Mammals 61 © Jones Despite& Bartlett their Learning,remarkable success, LLC mammals are much less© Jones stress & onBartlett the taxonomic Learning, aspect LLCof mammalogy, but rather as diverse than are most invertebrate groups. This is probably an attempt to provide students with sufficient information NOT FOR SALE OR DISTRIBUTION NOT FORattributable SALE OR to theirDISTRIBUTION far greater individual size, to the high on the various kinds of mammals to make the subsequent energy requirements of endothermy, and thus to the inabil- discussions of mammalian biology meaningful. -
Cetacean Occurrence in the Gulf of Alaska from Long-Term Passive
Marine Biology (2021) 168:72 https://doi.org/10.1007/s00227-021-03884-1 ORIGINAL PAPER Cetacean occurrence in the Gulf of Alaska from long‑term passive acoustic monitoring Ally Rice1 · Ana Širović1,2 · Jennifer S. Trickey1 · Amanda J. Debich1,3 · Rachel S. Gottlieb1 · Sean M. Wiggins1 · John A. Hildebrand1 · Simone Baumann‑Pickering1 Received: 23 November 2020 / Accepted: 11 April 2021 © The Author(s) 2021 Abstract The Gulf of Alaska is an important habitat for a diverse array of marine mammals, many of which were severely depleted by historical whaling. To study current cetacean distributions in this region, passive acoustic monitoring was used to detect species-specifc call types between 2011 and 2015 at fve locations spanning the continental shelf, slope, and ofshore sea- mounts. Spatial and temporal detection patterns were examined for nine species to compare diferences in behavior and habitat use. Mysticetes showed seasonal increases in calling that indicated possible behavioral shifts between feeding and breeding in blue (Balaenoptera musculus), fn (B. physalus), and humpback (Megaptera novaeangliae) whales, and matched known migration timing of gray whales (Eschrichtius robustus). Interannual changes in blue and fn whale calling may relate to the marine heat wave that began in 2013 and lasted through the end of the monitoring period. Odontocete detections revealed unique spatial distributions, with killer whales (Orcinus orca) most common on the continental shelf and sperm whales (Physeter macrocephalus) most common on the continental slope, where detections occurred year-round. Beaked whales showed both spatial and temporal separation: Baird’s beaked whale (Berardius bairdii) detections were highest at Quinn Seamount in the spring, Cuvier’s (Ziphius cavirostris) at Pratt Seamount in winter, and Stejneger’s (Mesoplodon stejnegeri) on the continental slope in the fall. -
Wint03 Whales
FAMILY NATURE NOTES WINTER 2003 Written by Kerry Everitt Design and illustrations by Judie Shore Did you know that the largest species of mammal in the world is found just off the coast of Canada? humpback Whales mother and Giants of the Ocean calf Way up north, in the Canadian Arctic, you can see narwhals and bow- head whales. Hundreds of beluga whales live quite close to us here in Ontario in the St. Lawrence River and farther north in Hudson Bay. Humpback whales, minke whales, fin whales and the gigantic blue whale can be found along both the Pacific and Atlantic coasts. Although they live entirely in the water, whales, dolphins and porpoises are actually mammals. These sorts of mammals are called cetaceans. Unlike insects, which have millions of different species, there are only about 80 species of cetaceans worldwide. Whales of all shapes and sizes are found in every ocean from the warm tropics to the icy poles. Millions of years ago, when mammals first evolved, they lived on land. How and why ancestors of the whales moved from their terrestrial habitat into the seas and oceans is unknown. About 55 million years ago, a group of mammals moved into the shallow marine environment. Gradually these creatures evolved and adapted to their new watery habitat and became the whales we know today. Their nostrils moved to the top of their heads (now called blowholes), and they developed strong tails for swimming. Their front legs transformed into flippers, and their hind legs completely disappeared. In some whales you can still find leg bones called vestigial bones, remnants of the time when these creatures were land mammals and walked on four legs. -
How Whales Used to Filter: Exceptionally Preserved Baleen in A
Journal of Anatomy J. Anat. (2017) 231, pp212--220 doi: 10.1111/joa.12622 How whales used to filter: exceptionally preserved baleen in a Miocene cetotheriid Felix G. Marx,1,2,3 Alberto Collareta,4,5 Anna Gioncada,4 Klaas Post,6 Olivier Lambert,3 Elena Bonaccorsi,4 Mario Urbina7 and Giovanni Bianucci4 1School of Biological Sciences, Monash University, Clayton, Vic., Australia 2Geosciences, Museum Victoria, Melbourne, Vic., Australia 3D.O. Terre et Histoire de la Vie, Institut Royal des Sciences Naturelles de Belgique, Brussels, Belgium 4Dipartimento di Scienze della Terra, Universita di Pisa, Pisa, Italy 5Dottorato Regionale in Scienze della Terra Pegaso, Pisa, Italy 6Natuurhistorisch Museum Rotterdam, Rotterdam, The Netherlands 7Departamento de Paleontologıa de Vertebrados, Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos, Lima, Peru Abstract Baleen is a comb-like structure that enables mysticete whales to bulk feed on vast quantities of small prey, and ultimately allowed them to become the largest animals on Earth. Because baleen rarely fossilises, extremely little is known about its evolution, structure and function outside the living families. Here we describe, for the first time, the exceptionally preserved baleen apparatus of an entirely extinct mysticete morphotype: the Late Miocene cetotheriid, Piscobalaena nana, from the Pisco Formation of Peru. The baleen plates of P. nana are closely spaced and built around relatively dense, fine tubules, as in the enigmatic pygmy right whale, Caperea marginata. Phosphatisation of the intertubular horn, but not the tubules themselves, suggests in vivo intertubular calcification. The size of the rack matches the distribution of nutrient foramina on the palate, and implies the presence of an unusually large subrostral gap. -
List of Marine Mammal Species and Subspecies
List of Marine Mammal Species and Subspecies Introduction The Committee on Taxonomy, chaired by Patricia Rosel, produced the first official Society for Marine Mammalogy list of marine mammal species and subspecies in 2010. Consensus on some issues has not been possible; this is reflected in the footnotes. The list is updated at least annually. The current version was updated in May 2020. This list can be cited as follows: “Committee on Taxonomy. 2019. List of marine mammal species and subspecies. Society for Marine Mammalogy, www.marinemammalscience.org, consulted on [date].” This list includes living and recently extinct (within historical times) species and subspecies. It is meant to reflect prevailing usage and recent revisions published in the peer-reviewed literature. Classification and scientific names follow Rice (1998), with adjustments reflecting more recent literature. Author(s) and year of description of each taxon follow the Latin (scientific) species name; when these are enclosed in parentheses, the taxon was originally described in a different genus. The Committee annually considers and evaluates new, peer-reviewed literature that proposes taxonomic changes. The Committee’s focus is on alpha taxonomy (describing and naming taxa) and beta taxonomy primarily at lower levels of the hierarchy (subspecies, species and genera), although it may evaluate issues at higher levels if deemed necessary. Proposals for new, taxonomically distinct taxa require a formal, peer-reviewed study and should provide robust evidence that some subspecies or species criterion was met. For review of species concepts, see Reeves et al. (2004), Orr and Coyne (2004), de Queiroz (2007), Perrin (2009) and Taylor et al. -
Sustained Disruption of Narwhal Habitat Use and Behavior in The
Sustained disruption of narwhal habitat use and behavior in the presence of Arctic killer whales Greg A. Breeda,1, Cory J. D. Matthewsb, Marianne Marcouxb, Jeff W. Higdonc, Bernard LeBlancd, Stephen D. Petersene, Jack Orrb, Natalie R. Reinhartf, and Steven H. Fergusonb aInstitute of Arctic Biology, University of Alaska, Fairbanks, AK 99775; bArctic Aquatic Research Division, Fisheries and Oceans Canada, Winnipeg, MB, Canada R3T 2N6; cHigdon Wildlife Consulting, Winnipeg, MB, Canada R3G 3C9; dFisheries Management, Fisheries and Oceans Canada, Quebec, QC, Canada G1K 7Y7; eAssiniboine Park Zoo, Winnipeg, MB, Canada R3R 0B8; and fDepartment of Biological Sciences, University of Manitoba, Winnipeg, MB, Canada R3T 2N2 Edited by James A. Estes, University of California, Santa Cruz, CA, and approved January 10, 2017 (received for review July 17, 2016) Although predators influence behavior of prey, analyses of elec- Electronic tracking tags are also frequently used to track verte- tronic tracking data in marine environments rarely consider how brates in marine systems. Although there is evidence that marine predators affect the behavior of tracked animals. We collected animals adjust their behavior under predation threat (21, 22, 12), an unprecedented dataset by synchronously tracking predator few data or analyses exist showing how predators affect the (killer whales, N = 1; representing a family group) and prey movement of tracked marine animals. These data are lacking (narwhal, N = 7) via satellite telemetry in Admiralty Inlet, a because marine environments are more difficult to observe and large fjord in the Eastern Canadian Arctic. Analyzing the move- tracked animals often move over scales much larger than their ment data with a switching-state space model and a series of terrestrial counterparts, making it difficult to measure predator mixed effects models, we show that the presence of killer whales density in situations where tracking tags are deployed on prey. -
Balaenoptera Bonaerensis – Antarctic Minke Whale
Balaenoptera bonaerensis – Antarctic Minke Whale compared to B. bonaerensis. This smaller form, termed the “Dwarf” Minke Whale, may be genetically different from B. bonaerensis, and more closely related to the North Pacific Minke Whales, and thus has been classified B. acutorostrata (Wada et al. 1991; IWC 2001). This taxonomic position, although somewhat controversial, has been accepted by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), and the Convention on Migratory Species (CMS). Assessment Rationale The current IWC global estimate of abundance of Antarctic Dr. Meike Scheidat Minke Whales is about 500,000 individuals. The abundance estimates declined from about 700,000 for the second circumpolar set of abundance survey cruises Regional Red List status (2016) Least Concern* (1985/86 to 1990/91) to about 500,000 for the third National Red List status (2004) Least Concern (1991/92 to 2003/04). Although this decline was not statistically significant, the IWC Scientific Committee does Reasons for change No change consider these results to reflect a change. However, Global Red List status (2008) Data Deficient whether this change is genuine or attributed to greater proportions of pack ice limiting the survey extent, has not TOPS listing (NEMBA) (2007) None yet been determined. More detailed results from an CITES listing (1986) Appendix I assessment model are available for the mid-Indian to the mid-Pacific region, and suggest that the population Endemic No increased to a peak in 1970 and then declined, with it *Watch-list Data being unclear whether this decline has levelled off or is still continuing past 2000. -
Cetacean Fact Sheets for 1St Grade
Whale & Dolphin fact sheets Page CFS-1 Cetacean Fact Sheets Photo/Image sources: Whale illustrations by Garth Mix were provided by NOAA Fisheries. Thanks to Jonathan Shannon (NOAA Fisheries) for providing several photographs for these fact sheets. Beluga: http://en.wikipedia.org/wiki/File:Beluga03.jpg http://upload.wikimedia.org/wikipedia/commons/4/4b/Beluga_size.svg Blue whale: http://upload.wikimedia.org/wikipedia/commons/d/d3/Blue_Whale_001_noaa_body_color.jpg; Humpback whale: http://www.nmfs.noaa.gov/pr/images/cetaceans/humpbackwhale_noaa_large.jpg Orca: http://www.nmfs.noaa.gov/pr/species/mammals/cetaceans/killerwhale_photos.htm North Atlantic right whale: http://www.nmfs.noaa.gov/pr/images/cetaceans/narw_flfwc-noaa.jpg Narwhal: http://www.noaanews.noaa.gov/stories2010/images/narwhal_pod_hires.jpg http://upload.wikimedia.org/wikipedia/commons/a/ac/Narwhal_size.svg Pygmy sperm whale: http://swfsc.noaa.gov/textblock.aspx?ParentMenuId=230&id=1428 Minke whale: http://www.birds.cornell.edu/brp/images2/MinkeWhale_NOAA.jpg/view Gray whale: http://upload.wikimedia.org/wikipedia/commons/b/b8/Gray_whale_size.svg Dall’s porpoise: http://en.wikipedia.org/wiki/File:Dall%27s_porpoise_size.svg Harbor porpoise: http://www.nero.noaa.gov/protected/porptrp/ Sei whale: http://upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Sei_whale_size.svg/500px- Sei_whale_size.svg.png Whale & Dolphin fact sheets Page CFS-2 Beluga Whale (buh-LOO-guh) Photo by Greg Hume FUN FACTS Belugas live in cold water. They swim under ice. They are called white whales. They are the only whales that can move their necks. They can move their heads up and down and side to side. Whale & Dolphin fact sheets Page CFS-3 Baby belugas are gray. -
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. -
Fin Whale Balaenoptera Physalus
Natural Heritage Fin Whale & Endangered Species Balaenoptera physalus Program State Status: Endangered www.mass.gov/nhesp Federal Status: Endangered Massachusetts Division of Fisheries & Wildlife DESCRIPTION: Fin Whales can weigh between 40 and 80 tons and measure 22 to 26 meters long, second in size only to the Blue Whale. Females tend to be slightly larger than males by 5-10%. Fin Whales have a sleek, streamlined body with a V-shaped head and are dark grey to brown on top, with white underneath. They have a tall, hooked, dorsal fin located two-thirds of the way down their body. Fin Whales are commonly called Razorbacks for the ridges on the middle of the back behind the dorsal fin. The unique asymmetrical coloration on the head easily separates this species from all of the other baleen whales. On the right side, the lower jaw is white, and the baleen plates in the front half of the mouth are also white, but abruptly change to dark Photo courtesy of NOAA in the back half of the mouth. By contrast, the lower left jaw is gray and all of the baleen plates on the left side are dark. This coloration may aid in herding fish during east of Boston and Cape Ann. Although there are feeding, although its primary purpose is unknown. seasonal fluctuations, the Fin Whale is most common in New England from April to November. Massachusetts RANGE: Fin Whales prefer deep, offshore waters of all waters are a major feeding ground for Fin Whales on the the major oceans, primarily in temperate and polar east coast of the U.S. -
Global Review of the Conservation Status of Monodontid Stocks
Global Review of the Conservation Status of Monodontid Stocks the International Whaling Commis- the EEZ of each country). The JCNB Preface sion (IWC). Among its 89 member makes recommendations on the con- countries are four of the five mon- servation and management of these odontid range states (Canada being shared stocks to the appropriate au- Two modern species of toothed the sole non-member). thorities of both countries. whales, the narwhal, Monodon monoc- The Scientific Committee of the The North Atlantic Marine Mammal eros, and the beluga or white whale, IWC has on two occasions reviewed the Commission (NAMMCO) was estab- Delphinapterus leucas, comprise the world’s stocks of belugas and narwhals lished in 1992 by the Faroe Islands, family Monodontidae. Both are en- (both species in 1992, IWC, 1993; only Greenland, Iceland, and Norway to co- demic to the Arctic and, in the case of belugas in 1999, IWC, 2000). These re- operate in the management and con- belugas, also certain portions of the views identified 29 stocks of belugas servation of all marine mammals in sub-Arctic. While the narwhal’s range and 3 regional stocks of narwhals. Be- the area. NAAMCO regularly reviews is centered in high-latitude waters con- luga stocks were considered in detail, the status of the stocks of narwhals nected to the North Atlantic Ocean and available information on range, and belugas within its remit. (eastern Canada, Greenland, Svalbard, abundance, trends in abundance, hunt- The NAMMCO Scientific Commit- and Franz Josef Land), the beluga’s ing removals, threats, and legal status tee’s Working Group on the Popula- distribution is nearly circumpolar, with were reviewed and summarized. -
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)