Gray Whale Eschrichtius Robustus
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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. -
Abundant Mitochondrial DNA Variation and World-Wide Population Structure in Humpback Whales C
Proc. Natl. Acad. Sci. USA Vol. 90, pp. 8239-8243, September 1993 Evolution Abundant mitochondrial DNA variation and world-wide population structure in humpback whales C. S. BAKERab, A. PERRYab, J. L. BANNISTERC, M. T. WEINRICHd, R. B. ABERNETHYe, J. CALAMBOKIDISf, J. LIENS, R. H. LAMBERTSENh, J. URBAN RAM1REZ', 0. VASQUEZJ, P. J. CLAPHAMk, A. ALLINGl, S. J. O'BRIENm, AND S. R. PALUMBIa aDepartment of Zoology and Kewalo Marine Laboratory, University of Hawaii, Honolulu, HI 96822; cWestern Australia Museum, Perth, Western Australia, Australia 6000; dCetacean Research Unit, Gloucester, MA 01930; eUniversity of Pretoria, Pretoria 0002, South Africa; fCascadia Research Collective, Olympia, WA 98501; gMemorial University, St. John's, NF, Canada AlC 5S7; hWoods Hole Oceanographic Institute, Woods Hole, MA 02543; iUniversidad Autonoma de Baja California Sur, La Paz, Baja California Sur, Mexico; jUniversidad Autonoma de Santo Domingo, Santo Domingo, Dominican Republic; kCenter for Coastal Studies, Provincetown, MA 02657; 1Ocean Expeditions Inc., Oracle, AZ 85624; and mNational Cancer Institute, Frederick, MD 21702-1201 Communicated by Robert T. Paine, April 26, 1993 (receivedfor review January 11, 1993) ABSTRACT Hunting during the last 200 years reduced We first verified that oceanic populations of humpback many populations of mysticete whales to near extinction. To whales are independent demographic units by estimating evaluate potential genetic bottlenecks in these exploited popu- mtDNA gene flow with a cladistic analysis of the control lations, we examined mitochondrial DNA control region se- region sequences. We then evaluated mtDNA diversity quences from 90 individual humpback whales (Megaptera no- within each oceanic population in reference to world-wide vaeangliae) representing six subpopulations in three ocean ba- levels of variation on the assumption that loss of genetic sins. -
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. -
The Bowhead Vs. the Gray Whale in Chukotkan Aboriginal Whaling IGOR I
ARCTIC VOL. 40, NO. 1 (MARCH 1987) P. 16-32 The Bowhead vs. the Gray Whale in Chukotkan Aboriginal Whaling IGOR I. KRUPNIK’ (Received 5 September 1984; accepted in revised form 22 July 1986) ABSTRACT. Active whaling for large baleen whales -mostly for bowhead (Balaena mysricetus) and gray whales (Eschrichrius robustus)-has been practiced by aborigines on the Chukotka Peninsula since at least the early centuries of the Christian era. Thehistory of native whaling off Chukotka may be divided into four periods according to the hunting methods used and the primary species pursued: ancient or aboriginal (from earliest times up to the second half of the 19th century); rraditional (second half of the 19th century to the1930s); transitional (late 1930s toearly 1960s); and modern (from the early 1960s). The data on bowhead/gray whale bone distribution in theruins of aboriginal coastal sites, available catch data from native settlements from the late 19th century and local oral tradition prove to be valuable sources for identifying specific areas of aboriginal whaling off Chukotka. Until the 1930s, bowhead whales generally predominated in the native catch; gray whales were hunted periodically or locally along restricted parts of the coast. Some 8-10 bowheads and 3-5 gray whales were killed on the average in a “good year”by Chukotka natives during the early 20th century. Around the mid-20th century, however, bowheads were completely replaced by gray whales. On the basis of this experience, the author believes that the substitution of gray whales for bowheads, proposed recently by conservationists for modemAlaska Eskimos, would be unsuccessful. -
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. -
First Report of Gray Whale (Eschrichtius Robustus , Lilljeborg
Turkish Journal of Zoology Turk J Zool (2017) 41: 951-954 http://journals.tubitak.gov.tr/zoology/ © TÜBİTAK Short Communication doi:10.3906/zoo-1609-50 First report of gray whale (Eschrichtius robustus, Lilljeborg, 1861) conjoined twin calves in the Eastern Pacific Ocean 1 1,2 3 1, Elena TAMBURIN , Erica CARONE , Irma GONZALEZ-LOPEZ , Felipe GALVAN-MAGAÑA * 1 Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, Mexico 2 Shoreline Soc. Coop. AREA Science Park, Trieste, Italy 3 Comisión Nacional de Áreas Naturales Protegidas, La Paz, Baja California Sur, Mexico Received: 26.09.2016 Accepted/Published Online: 04.05.2017 Final Version: 28.09.2017 Abstract: In January 2014, gray whale (Eschrichtius robustus) conjoined twin calves were found dead in Laguna Ojo de Liebre (Scammon’s Lagoon), Baja California Sur, Mexico. The thoracopagus (united ventrally at the chest) individuals were conjoined in the thorax region, sharing the navel and genital area, but with two distinct heads and flukes. Although observed in humans and domestic animals, this case is rare among cetaceans. Some conjoined twin cetacean fetuses have previously been reported; however, this is the first report of the congenital anomaly in Eschrichtius robustus. Key words: Gray whale, twin calves, malformation, Baja California Sur, Mexico Twins become conjoined during the earliest stages Cases of conjoined twin cetaceans are very rare. The of development when the embryo is in the morula or earliest report dates to 1917, when parapagus newborn blastocyst stage (Kaufman, 2004). The etiology of conjoined female bottlenose dolphins (Tursiops truncatus) were twins remains enigmatic; however, three hypotheses reported in the Netherlands (Kompanje, 2005). -
Gray Whales in the North Pacific: History, Biology, and Current Research
Gray Whales in the North Pacific: History, biology, and current research Aimée Lang Marine Mammal and Turtle Division Southwest Fisheries Science Center 13 October 2015 Photo courtesy of San Diego Natural History Museum Whalers W. Perryman Photo credit: Wayne Perryman, SWFSC Overview: • Taxonomic history • Physical description • Gray whale biology and life history • How we study gray whales and what we’ve learned! Taxonomic history: • First described based on subfossil remains from the coast of Sweden (Lilljeborg 1861) • “Eschrichtius” – named after a Danish zoologist (Dr. Daniel Eschricht) who was the first to suggest the remains might be from a new genus and family • “robustus” – Latin for strong Relationship to other baleen whales: • Fossil record is generally sparse but suggests higher diversity in the past • Today the gray whale is the only living species in its genus and family • Although traditionally considered morphologically distinct from the rorqual whales, molecular analyses indicate that gray whales are closely related to balaenopterid whales Sasaki et al. 2005, mitogenome analysis Physical characteristics: • Heart-shaped blow • Mottled gray and white coloration • Dorsal hump followed by series of 6 to 12 “knuckles” • Yellowish white baleen • Fewest baleen plates of any mysticete (130-180 plates on each side of mouth) • 2-5 throat grooves Size: • Adult body 11 to 15 m and weigh 45,000 kg • Females are larger than males • Calves 4.6 to 4.9 m at birth and weigh 700-900 kg Gray whale barnacles (Cryptolepas rhachianecti): • Considered -
Encyclopedia of Marine Mammals
Group Behavior 511 Mexico recognized the importance of the breeding lagoons to the Reeves, R. R. et al . (2005). Report of the Independent Scientifi c Review recovery of the gray whale and it is the only nation to provide impor- Panel on the Impacts of Sakhalin II Phase 2 on Western North Pacifi c tant habitat protection for the eastern population. In 1972, it estab- Gray Whales and Related Biodiversity. IUCN, Gland, Switzerland. lished Ojo de Liebre Lagoon (the principle calving and nursery area) [Available from http://www.iucn.org ]. as the world’s fi rst whale refuge. In 1979, San Ignacio Lagoon became Rice , D. W. , and Wolman , A. A. ( 1971 ). Life History and Ecology of the Gray Whale ( Eschrichtius robustus ) . Am. Soc. Mamm. Spec. Pub. 3 . a Whale Refuge and Maritime Attraction Zone . In 1980, reserve sta- Rugh , D. J. , Roderick , C. H. , Lerczak , J. A. , and Breiwick , J. M. ( 2005 ). tus extended to Laguna Manuela and Laguna Guerrero Negro. All lie Estimates of abundance of the eastern North Pacifi c stock of gray whales within the El Vizcaíno Biosphere Reserve , created in 1988. In 1993, (Eschrichtius robustus ) 1997–2002 . J. Cetacean Res. Manag. 7 , 1 – 1 2 . the United Nations Educational, Scientifi c, and Cultural Organization Rychel , A. , Reeder , T. , and Berta , A. ( 2004 ). Phylogeny of mysticete (UNESCO) made Ojo de Liebre and San Ignacio Lagoons World whales based on mitochondrial and nuclear data. Mol. Phylogenet. Heritage Sites. Lastly, in 2002, all Mexican territorial seas and EEZ Evol. 32 , 892 – 901 . were declared a refuge to protect large whales. -
Gray Whales - Current Status and Strandings
San Francisco Bay National Wildlife Refuge Complex Tideline Newsletter Archives Gray whales - current status and strandings by Doreen Moser and Frances Gulland As winter begins here in California, so does the annual gray whale (Eschrichtius robustus) migration. In November, the whales begin their 5,000-mile journey south ward from Alaska’s Bering and Chukchi Seas. During December and January thou sands of these whales are seen migrating along our coast. By January, pregnant fe males are first to reach the calving lagoons along the West coast of Baja California, Mexico. Soon they are joined by the other adults and juveniles. The females give birth to their calves in the lagoons, usually for the first time when eight years old. In February, the animals begin another 5,000 mile jour ney northward returning to Alaska. During the spring months, cow-calf pairs can be seen migrating very close to shore. These 15-foot calves nurse constantly, as they migrate back to the summer feeding grounds. As you stand along the shore, how do you know you are looking at a gray whale? You can usually spot them by their heart-shaped blow. They surface regularly every three to five minutes when migrating, and usually blow three to five times. They swim between 7 and 9 kms per hour. Gray whales are medium sized whales, reaching up to 45 feet in length and weighing 45 tons. As in other baleen whales, females are larger than the males. Gray whales can be distin guished from other whales because they lack a dorsal (back) fin. -
A Checklist of Turtle and Whale Barnacles
Journal of the Marine Biological Association of the United Kingdom, 2013, 93(1), 143–182. # Marine Biological Association of the United Kingdom, 2012 doi:10.1017/S0025315412000847 A checklist of turtle and whale barnacles (Cirripedia: Thoracica: Coronuloidea) ryota hayashi1,2 1International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa-shi, Chiba 277-8564 Japan, 2Marine Biology and Ecology Research Program, Extremobiosphere Research Center, Japan Agency for Marine–Earth Science and Technology A checklist of published records of coronuloid barnacles (Cirripedia: Thoracica: Coronuloidea) attached to marine vertebrates is presented, with 44 species (including 15 fossil species) belonging to 14 genera (including 3 fossil genera) and 3 families recorded. Also included is information on their geographical distribution and the hosts with which they occur. Keywords: checklist, turtle barnacles, whale barnacles, Chelonibiidae, Emersoniidae, Coronulidae, Platylepadidae, host and distribution Submitted 10 May 2012; accepted 16 May 2012; first published online 10 August 2012 INTRODUCTION Superorder THORACICA Darwin, 1854 Order SESSILIA Lamarck, 1818 In this paper, a checklist of barnacles of the superfamily Suborder BALANOMORPHA Pilsbry, 1916 Coronuloidea occurring on marine animals is presented. Superfamily CORONULOIDEA Newman & Ross, 1976 The systematic arrangement used herein follows Newman Family CHELONIBIIDAE Pilsbry, 1916 (1996) rather than Ross & Frick (2011) for reasons taken up in Hayashi (2012) in some detail. The present author Genus Chelonibia Leach, 1817 deems the subfamilies of the Cheonibiidae (Chelonibiinae, Chelonibia caretta (Spengler, 1790) Emersoniinae and Protochelonibiinae) proposed by Harzhauser et al. (2011), as well as those included of Ross & Lepas caretta Spengler, 1790: 185, plate 6, figure 5. -
Grey Whale Eschrichtius Robustus Eastern North Pacific Population
COSEWIC Assessment and Status Report on the Grey Whale Eschrichtius robustus Eastern North Pacific Population in Canada SPECIAL CONCERN 2004 COSEWIC COSEPAC COMMITTEE ON THE STATUS OF COMITÉ SUR LA SITUATION ENDANGERED WILDLIFE DES ESPÈCES EN PÉRIL IN CANADA AU CANADA COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows: COSEWIC 2004. COSEWIC assessment and update status report on the grey whale (Eastern North Pacific population) Eschrichtius robustus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vii + 31 pp. (www.sararegistry.gc.ca/status/status_e.cfm). Previous report: Reeves, R.R. and E. Mitchell. 1987. COSEWIC status report on the grey whale (Eastern North Pacific population) Eschrichtius robustus in Canada. Committee on the Status of Endangered Wildlife in Canada. 36 pp. Production note: COSEWIC acknowledges Volker Deecke for writing the update status report on the grey whale (Eastern North Pacific population) Eschrichtius robustus in Canada. The report was overseen and edited by Andrew Trites, COSEWIC Marine Mammals Species Specialist Subcommittee co-chair. For additional copies contact: COSEWIC Secretariat c/o Canadian Wildlife Service Environment Canada Ottawa, ON K1A 0H3 Tel.: (819) 997-4991 / (819) 953-3215 Fax: (819) 994-3684 E-mail: COSEWIC/[email protected] http://www.cosewic.gc.ca Ếgalement disponible en français sous le titre Ếvaluation et Rapport de situation du COSEPAC sur la baleine grise (population du Pacifique nord-est) (Eschrichtius robustus) au Canada – Mise à jour. Cover illustration: Grey whale — Drawing by A. -
Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans
Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans by Robert George Young A Thesis presented to The University of Guelph In partial fulfilment of requirements for the degree of Doctor of Philosophy in Integrative Biology Guelph, Ontario, Canada © Robert George Young, March, 2016 ABSTRACT MOLECULAR SPECIES DELIMITATION AND BIOGEOGRAPHY OF CANADIAN MARINE PLANKTONIC CRUSTACEANS Robert George Young Advisors: University of Guelph, 2016 Dr. Sarah Adamowicz Dr. Cathryn Abbott Zooplankton are a major component of the marine environment in both diversity and biomass and are a crucial source of nutrients for organisms at higher trophic levels. Unfortunately, marine zooplankton biodiversity is not well known because of difficult morphological identifications and lack of taxonomic experts for many groups. In addition, the large taxonomic diversity present in plankton and low sampling coverage pose challenges in obtaining a better understanding of true zooplankton diversity. Molecular identification tools, like DNA barcoding, have been successfully used to identify marine planktonic specimens to a species. However, the behaviour of methods for specimen identification and species delimitation remain untested for taxonomically diverse and widely-distributed marine zooplanktonic groups. Using Canadian marine planktonic crustacean collections, I generated a multi-gene data set including COI-5P and 18S-V4 molecular markers of morphologically-identified Copepoda and Thecostraca (Multicrustacea: Hexanauplia) species. I used this data set to assess generalities in the genetic divergence patterns and to determine if a barcode gap exists separating interspecific and intraspecific molecular divergences, which can reliably delimit specimens into species. I then used this information to evaluate the North Pacific, Arctic, and North Atlantic biogeography of marine Calanoida (Hexanauplia: Copepoda) plankton.