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This animal is very similar to many other beaked whales. Due to their lack of surface time and strandings, these whales are very poorly known.

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Associations

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No information is known about predation.

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Morphology

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There have been very few sightings of this whale due to its spending little time on the surface. Of the roughly 35 specimens studied, the following is specific to M. bowdoini: indiviuals weigh 2.6 tons at their maximum and at birth the average length is approximately 2 meters. Females grow to an average of 4.6 m., with males growing slightly longer to 4.8 m. The color of males ranges from dark grayish-blue to black, except for the "beak", the tip of the rostrum and lower jaw, which are white in color. Females have more of an off-white beak.

Andrew's whale females or young are distinguished from other Mesoplodon species by their heads, which have a small melon and as a result, slants down dramatically from the body. Also, females and young have short, thick beaks. The dorsal fin of this species is rather small for its body size. This fin is found in the middle of the back, and it is triangular and blunt tipped.

The teeth of males are helpful in identification. Males have two teeth located in the lower jaw within a set of sockets in the middle of the beak. Females also contain these teeth, but they are not visible since they do not erupt through to the surface.

Average mass: 2359 kg.

Range length: 2 to 4.7 m.

Other Physical Features: endothermic ; homoiothermic; bilateral symmetry

Sexual Dimorphism: male larger

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Life Expectancy

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No information available.

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Habitat

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These animals prefer to forage at depths below the 1000 meter line. This is possibly due to the distribution of squid and other food sources not yet identified. The great depths to which these mammals travel can result in dives that last longer then 45 minutes.

Habitat Regions: temperate

Aquatic Biomes: pelagic ; coastal

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Distribution

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Mesoplodon bowdoini, also known as Andrew's beaked whales, can be found in cool temperate water such as the Indo-Pacific Ocean. The waters around New Zealand and off the southern coast of Australia are home to this whale.

Biogeographic Regions: indian ocean (Native ); pacific ocean (Native )

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Trophic Strategy

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Mesoplodon bowdoini feeds in deep waters primarily on squid. When squid are not available fish become a secondary source of food.

Animal Foods: fish; mollusks

Primary Diet: carnivore (Piscivore , Molluscivore )

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Associations

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Mesoplodon bowdoini affects the environment by feeding on squid and occasionally fish, which may affect their populations. No relationships with other marine animals are known.

Species Used as Host:

  • None known

Mutualist Species:

  • None known

Commensal/Parasitic Species:

  • None known
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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Benefits

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There are no known positive affects of M. bowdoini on humans. These animals are not significant to the whaling industry.

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Benefits

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There are no known adverse affects of M. bowdoini on humans.

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Conservation Status

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M. bowdoini is protected under the 1972 Marine Mammal Protection Act(MMPA). This established an end to the hunting, harassing, capture or killing of marine mammals in US waters and by US citizens. MMPA also extended the ban on the importation of marine mammals or their products into the country.

US Federal List: no special status

CITES: no special status

IUCN Red List of Threatened Species: data deficient

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Behavior

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No information is known.

Perception Channels: tactile ; chemical

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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Matthew Wund, University of Michigan-Ann Arbor
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Reproduction

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Due to the lack of scarring in M. bowdoini investigators believe that there is no physical competition for partners. Little is known about the mating system of this species.

The only information on the reproductive system of M. bowdoini is from occasional observations of young. The calving season occurs during the summer and autumn.

Breeding season: summer and autumn

Key Reproductive Features: seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous

No specific information is available. As mammals, females nurse their young.

Parental Investment: pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female)

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mangano, a. 2004. "Mesoplodon bowdoini" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Mesoplodon_bowdoini.html
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angela mangano, University of Michigan-Ann Arbor
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Phil Myers, Museum of Zoology, University of Michigan-Ann Arbor
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External morphology

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Head Shape Melon is relatively flat and defined posteriorly by an indentation at the blowhole. The beak is thick and short with a massive lower jaw that rises prominently on either side of the rostrum about halfway along its length. The mouthline is strongly arched. Coloration Adult males are dark blue-black with a grayish saddle that extends posteriorly from just behind the blowhole for about half the length of the dorsum. The leading edge of the dorsal fin may also be gray. The snout and lower jaws are white or pale gray for up to half the length of the jaw or to just past the teeth. Some individuals have a whitish patch on either side of the forehead at the base of the rostrum. The throat grooves are white or pale gray and the flipper pocket is also lighter in color. Sexually mature males of this species often exhibit scarring from antagonistic sparring. Other oval scars, attributed to the cookie cutter shark, Isistius brasilensis, are present especially in the posterior ventral area of adults.Females have a slate gray dorsum with flanks and belly pale gray to white. There is less white on the beak than in males. Size Adult body length ranges between 3.9 to 4.9 m. Recorded maximum body length for adult males and females is 4.6 m and 4.9 m, respectively. Body length at birth is 2.2 m. Most Likely Confused With: Mesoplodon densirostris Mesoplodon ginkgodens
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Skull morphology

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Diagnostic features of the skull and mandible On the vertex of the dorsal skull the premaxillary bone extends forward of the nasal and frontal. Separates from Berardius and Ziphius. A sulcus (groove) running along the middle of the combined surfaces of the nasal bones so depresses their middle that it is the lateral portion of each nasal bone that reaches farthest forward on the vertex. Separates from Tasmacetus and Indopacetus. When the skull is upright and the long axis of the anterior half of the beak is horizontal, a horizontal plane transecting the summit of either maxillary prominence transects the mesethmoid bone. Separates from Hyperoodon. Tooth alveoli of mandible overlap the mandibular symphysis. Separates from Berardius, Ziphius, Tasmacetus, Indopacetus, Hyperoodon, M. grayi, M. europaeus, M. hectori, M. mirus, M. perrini, M. densirostris, M. ginkgodens, M. peruvianus, and M. stejnegeri. Basirostral groove absent or present as a shallow groove that does not extend past the prominental notch. Separates from M. layardii. The maxillary prominences rise 15 mm higher than the height of the premaxillaries where the latter passes between the former. Separates from M. bidens. In dorsal view, the right premaxilla extends slightly posterior beyond the right nasal. Separates from M. traversii. Antorbital tubercle formed by the maxilla and frontal and is underlain by the jugal and frontal. Separates from M. carlhubbsi.
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Stranding distribution

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Stranding Distribution Circumpolar distribution in the southern ocean waters north of the Antarctic convergence. Occurs in the southwest Pacific and Indian Ocean between 32oS and 54o30' S, and in the Atlantic Ocean between 36o and 52o S. The majority of recorded strandings have occurred in waters surrounding Australia and New Zealand.
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Tooth morphology

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Tooth position A single pair of teeth is positioned midway between the apex of the beak and the posterior end of the mouth. Tooth exposure Erupted teeth in adult males are covered by gum tissue, with only the tip of tooth exposed. Teeth do not erupt in females or juveniles. Tooth shape In lateral profile, the anterior margin is weakly sinusoidal (convex proximally, concave distally) and is longer than the strongly convex posterior margin. A denticle is positioned at the top of the anterior edge of the tooth. When the denticle is not excessively worn, it extends well past the antero-dorsal edge of the tooth.
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Diagnostic Description

provided by FAO species catalogs
The external appearance of Andrews' beaked whale is poorly known; however, its skeleton is similar to that of Hubbs' beaked whale. Adult males are all dark, except for the front half of the beak, which is white. The flattened tusks of males of this species emerge from the middle of the lower jaw on raised sockets, and protrude above the upper jaw. Can be confused with: The teeth of bulls, if seen well, will allow Andrews' beaked whale to be distinguished from most other Mesoplodon species. They are most likely to be mistaken for Blainville's beaked whale but lack the arched lower jaw.
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Marine mammals of the world. Jefferson, T.A., S. Leatherwood & M.A. Webber - 1993. FAO species identification guide. Rome, FAO. 320 p. 587 figs. . 
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Benefits

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No exploitation of this species is known. IUCN: Insufficiently known.
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Marine mammals of the world. Jefferson, T.A., S. Leatherwood & M.A. Webber - 1993. FAO species identification guide. Rome, FAO. 320 p. 587 figs. . 
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Food and Agriculture Organization of the UN
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Brief Summary

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Essentially nothing is known of the biology of this species, other than the few facts that have been gleaned from stranded individuals.
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Marine mammals of the world. Jefferson, T.A., S. Leatherwood & M.A. Webber - 1993. FAO species identification guide. Rome, FAO. 320 p. 587 figs. . 
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Food and Agriculture Organization of the UN
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Size

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Females reach at least 4.6 m in length and males reach 4.7 m. Length at birth is presumed to be about 2 m.
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Marine mammals of the world. Jefferson, T.A., S. Leatherwood & M.A. Webber - 1993. FAO species identification guide. Rome, FAO. 320 p. 587 figs. . 
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Food and Agriculture Organization of the UN
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Mezoplodon Andrew ( Breton )

provided by wikipedia BR

Mezoplodon Andrew (Mesoplodon bowdoini) a zo ur morvil dantek.

 src=
Tiriad mezoplodon Andrew.
 src=
Mezoplodon Andrew ha den keñver-ha-keñver.
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Zífid d'Andrew ( Catalan; Valencian )

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El zífid d'Andrew (Mesoplodon bowdoini) és una espècie de zífid. És una de les espècies menys conegudes d'un gènere ben poc conegut. El seu nom específic bowdoini és en honor de George S. Bowdoin, un donant del Museu Americà d'Història Natural. Aquesta espècie és notable pel fet que a principis del segle XXI, encara no ha estat observada en estat salvatge. Viu a les aigües de Nova Zelanda i del sud d'Austràlia.

 src= A Wikimedia Commons hi ha contingut multimèdia relatiu a: Zífid d'Andrew Modifica l'enllaç a Wikidata


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Zífid d'Andrew: Brief Summary ( Catalan; Valencian )

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Andrews næbhval ( Danish )

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Andrews næbhvalen (Mesoplodon bowdoini) er en art i familien af næbhvaler i underordenen af tandhvaler. Dyret bliver 4-4,7 m langt og vejer 1-1,5 t.

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Andrew-Schnabelwal ( German )

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 src=
Angeschwemmter neugeborener Andrew-Schnabelwal

Der Andrew-Schnabelwal (Mesoplodon bowdoini) ist eine seltene und kaum bekannte Walart aus der Familie der Schnabelwale (Ziphiidae). Er wurde vom amerikanischen Zoologen Roy Andrews 1908 beschrieben und trägt seither seinen Namen.

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Verbreitungsgebiet

Die Heimat der Andrew-Schnabelwale sind die Ozeane südlich von Australien und rings um Neuseeland. Die Art ist bislang nur von Strandungen in diesen zwei Ländern bekannt. Möglicherweise reicht ihr Verbreitungsgebiet im Süden bis zur Antarktis.

Merkmale

Diese Wale haben einen torpedoförmigen Körper mit länglichen, kleinen Flippern, einer kleinen, sichelförmigen Finne über dem hinteren Drittel des Körpers und einer breiten Fluke, die nicht eingekerbt ist. Sie sind dunkelblau bis schwarz gefärbt (Männchen sind grau), lediglich die verhältnismäßig kurze Schnauze ist weiß. Männchen sind darüber hinaus durch einen in der Mitte aufgewölbten Unterkiefer gekennzeichnet, auf der je ein dreieckiger, aus dem Maul ragender Zahn erkennbar ist. Bei Jungtieren und Weibchen sind diese Zähne im Zahnfleisch verborgen. Vor der Aufwölbung ist der Kiefer sehr schmal, dahinter liegt eine flache Melone. Mit einer Durchschnittslänge von 4,5 Metern und einem Gewicht von etwa 2600 kg zählt die Art zu den eher kleineren Zweizahnwalen.

Da es keine Sichtungen gibt, nimmt man an, dass Andrew-Schnabelwale scheu sind und nicht in den von Menschen befahrenen Meeresregionen leben. Auch über ihre Lebensweise ist nichts Genaues bekannt, man kann aber annehmen, dass sie wie die anderen Zweizahnwale im offenen Meer leben. Untersuchungen des Mageninhalts gestrandeter Exemplare haben ergeben, dass sie vorrangig Tintenfische und zu einem kleinen Anteil Fische zu sich nehmen.

Über Populationsgröße oder Gefährdung lassen sich keine Angaben machen.

Literatur

  • Rüdiger Wandrey: Die Wale und Robben der Welt. Franckh-Kosmos Verlags GmbH, 1997, ISBN 3-440-07047-6

Weblinks

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Andrew-Schnabelwal: Brief Summary ( German )

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 src= Angeschwemmter neugeborener Andrew-Schnabelwal

Der Andrew-Schnabelwal (Mesoplodon bowdoini) ist eine seltene und kaum bekannte Walart aus der Familie der Schnabelwale (Ziphiidae). Er wurde vom amerikanischen Zoologen Roy Andrews 1908 beschrieben und trägt seither seinen Namen.

 src= Verbreitungsgebiet

Die Heimat der Andrew-Schnabelwale sind die Ozeane südlich von Australien und rings um Neuseeland. Die Art ist bislang nur von Strandungen in diesen zwei Ländern bekannt. Möglicherweise reicht ihr Verbreitungsgebiet im Süden bis zur Antarktis.

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Andrews' beaked whale

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Andrews' beaked whale (Mesoplodon bowdoini), sometimes known as the deep-crest beaked whale or splay-toothed whale, is one of the least known members of a poorly known genus. The species has never been observed in the wild, and is known only from specimens washed up on beaches.

Taxonomy

The species was first described in 1908 by the American scientist Roy Chapman Andrews from a specimen collected at New Brighton Beach, Canterbury Province, New Zealand, in 1904. He named it in honor of George S. Bowdoin, a donor and trustee to the American Museum of Natural History.[3]

Description

The body of Andrews' beaked whale is robust in comparison with other members of the genus. The melon is low, and the beak is short and thick. The lower jaw is peculiar in that halfway through it rises up significantly with the teeth extending over the rostrum. The head also sometimes has a light patch on the sides, more prominent in the males. The male, overall dark gray to black, has a lighter "saddle" marking between the blowhole and dorsal fin on its back. Males also carry scars typical of the genus. Females are slate gray with grayish-white flanks and belly. Cookie cutter shark bites are present in both sexes. Females are believed to reach at least 4.9 meters (16 feet) and males 4.5 meters (15 feet). The young are believed to be around 2.2 meters (7.2 feet) long when born.

Behavior

The calving season may be during summer and autumn off New Zealand. Otherwise, any behavior is completely unknown.

Population and distribution

Andrews' beaked whales live in the Southern Hemisphere, and the precise range is uncertain. Some 35 stranded specimens have been recorded in Australia and New Zealand, Macquarie Island, the Falkland Islands, and Tristan da Cunha. That range may imply a circumpolar distribution. However, there are no confirmed sightings to confirm this.

Conservation

Andrews' beaked whale has never been hunted, and there are no records of it being caught in fishing gear. In addition, Andrews’ beaked whale is covered by the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region (Pacific Cetaceans MOU).[4]

Specimens

  • MNZ MM002133, collected Spirits Bay, Northland, New Zealand 1992

See also

References

  1. ^ Pitman, R.L.; Brownell Jr.; R.L. (2020). "Mesoplodon bowdoini". IUCN Red List of Threatened Species. 2020: e.T13242A50363892. doi:10.2305/IUCN.UK.2020-3.RLTS.T13242A50363892.en. Retrieved 19 November 2021.
  2. ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. ^ Andrews, Roy Chapman."Description of a New Species of Mesoplodon from Canterbury Province, New Zealand." Bulletin of the American Museum of Natural History, Vol. 24 (1908), pp. 203-15.
  4. ^ Official webpage of the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region
  • Encyclopedia of Marine Mammals. Edited by William F. Perrin, Bernd Wursig, and J.G.M Thewissen. Academic Press, 2002. ISBN 0-12-551340-2
  • Sea Mammals of the World. Written by Randall R. Reeves, Brent S. Steward, Phillip J. Clapham, and James A. Owell. A & C Black, London, 2002. ISBN 0-7136-6334-0

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Andrews' beaked whale: Brief Summary

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Andrews' beaked whale (Mesoplodon bowdoini), sometimes known as the deep-crest beaked whale or splay-toothed whale, is one of the least known members of a poorly known genus. The species has never been observed in the wild, and is known only from specimens washed up on beaches.

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Aŭstralia mezoplodo ( Esperanto )

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Aŭstralia mezoplodo, bekobaleno de Andrewsmezoplodo aŭstralia (Mesoplodon bowdoini) estas unu el la plej malbone konataj membroj de malbone konata genro Mesoplodon. La specio neniam estis observita en naturo, kaj estas konata nur el specimenoj surstrandiĝintaj.

Taksonomio

La specio estis unuafoje priskribita en 1908 fre de la usona sciencisto Roy Chapman Andrews el specimeno kolektita en New Brighton Beach, Kanterburia Provinco, Novzelando, en 1904. Li nomis ĝin honore al George S. Bowdoin, donanto kaj administracianto de la Usona Muzeo de Natura Historio.[1]

Priskribo

 src=
Ĵusnaskitulo surstrandigita en Tasmanio.

La korpo de la Aŭstralia mezoplodo estas fortika kompare kun aliaj membroj de la genro. La maleno estas malalta, kaj la beko estas mallonga kaj dika. La malsupra makzelo estas pekuliara je tio ke meze ĝi ege elstaras kun la dentoj etendaj super la beko. La kapo foje havas helan makulon ambaŭflanke, pli elstara ĉe maskloj. La masklo, ĝenerala malhelgriza al nigra, havas pli helan "selan" markon inter la spirtruo kaj la dorsa naĝilo en ĝia dorso. Maskloj montras cikatrojn tipajn de la genro. Inoj estas ardezgrizaj kun grizec-blankaj flankoj kaj ventroy. Mordoj de ŝarkoj estas en ambaŭ seksoj. Oni supozas, ke inoj atingas almenaŭ 4.9 m kaj maskloj estas 4.5 m. Ŝajne junuloj estas ĉirkaŭ 2.2 m longaj naske.

Populacio kaj distribuado

La Aŭstralia mezoplodo vivas en la Suda Hemisfero, kaj la preciza vivejo estas necerta. Ĉirkaŭ 35 surstrandiĝintaj specimenoj estis registritaj en Aŭstralio kaj Novzelando, Makvora Insulo, Falklandoj, kaj Tristan da Cunha. Tiu teritorio povus enhavi ĉirkaŭpolusan distribuon. Tamen, estas nekonfirmitaj vidaĵoj kiu konfirmu tion.

Notoj

  1. Andrews, Roy Chapman."Description of a New Species of Mesoplodon from Canterbury Province, New Zealand." Bulletin of the American Museum of Natural History, Vol. 24 (1908), pp. 203-15.

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Aŭstralia mezoplodo: Brief Summary ( Esperanto )

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Aŭstralia mezoplodo, bekobaleno de Andrews aŭ mezoplodo aŭstralia (Mesoplodon bowdoini) estas unu el la plej malbone konataj membroj de malbone konata genro Mesoplodon. La specio neniam estis observita en naturo, kaj estas konata nur el specimenoj surstrandiĝintaj.

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Mesoplodon bowdoini ( Spanish; Castilian )

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El zifio de Andrew (Mesoplodon bowdoini) es una especie de cetáceo odontoceto de la familia Ziphidae. Es un miembro poco conocido género Mesoplodon. Fue nombrado en referencia a George S. Bowdoin, un donante del American Museum of Natural History.

Descripción

La coloración en machos es gris oscura a negra, mientras que en hembras es más clara. Las hemras alcanzan un mayor tamaño (cerca de 5 metros), mientras que los machos miden unos 4,5 metros. Bastante robusto en comparación con los demás miembros del género Mesoplodon. El melón es poco pronunciado, y su hocico es corto y grueso. El maxilar inferior es bastante peculiar, pues a mitad del hocico eleva significativamente[1].

Población y distribución

Se sabe que esta especie vive en el hemisferio sur. 35 especímenes varados se han registrado en Australia, Nueva Zelanda y las Islas Malvinas; esto puede implicar una distribución circumpolar. Sin embargo, no hay avistamientos confirmados para respaldar esto.

Referencias

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Mesoplodon bowdoini: Brief Summary ( Spanish; Castilian )

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El zifio de Andrew (Mesoplodon bowdoini) es una especie de cetáceo odontoceto de la familia Ziphidae. Es un miembro poco conocido género Mesoplodon. Fue nombrado en referencia a George S. Bowdoin, un donante del American Museum of Natural History.

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Mesoplodon bowdoini ( Basque )

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Mesoplodon bowdoini Mesoplodon generoko animalia da. Artiodaktiloen barruko Ziphiidae familian sailkatuta dago.

Erreferentziak

  1. (Ingelesez)Mammals - full taxonomy and Red List status Ugaztun guztien egoera 2008an
  2. Andrews (1908) 24 Bull. Am. Mus. Nat. Hist. 203 figs. 1-5 pl. 13. or..

Kanpo estekak

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Mesoplodon bowdoini: Brief Summary ( Basque )

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Mesoplodon bowdoini Mesoplodon generoko animalia da. Artiodaktiloen barruko Ziphiidae familian sailkatuta dago.

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Baleine à bec d'Andrews ( French )

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Mesoplodon bowdoini

La baleine à bec d'Andrews (Mesoplodon bowdoini) est une espèce de cétacés de la famille des Ziphiidae et est l'un des membres les plus méconnus d'un genre mal connu. Aussi appelée baleine à bec de Bowdoin, sa dénomination spécifique bowdoini fait référence à George S. Bowdoin, un des donateurs de l'American Museum of Natural History. Cette espèce est remarquable pour ne pas avoir encore été observée dans la nature depuis 2002.

Description

Les femelles adultes peuvent atteindre les 4,9 m de long, les mâles 4,5 mètres. Le jeune mesure 2 m à sa naissance[1].

Le corps de la baleine à bec d'Andrews est assez massif comparativement aux autres membres du genre. Le melon est plutôt bas, et le bec est court et épais. La mâchoire inférieure remonte de manière significative avec les dents passant sur le rostre (ou « bec »). La tête a parfois une tache claire sur les côtés, plus importante chez le mâle. Les mâles sont globalement foncés, variant du gris au noir, ont une zone claire sur le dos comme une selle et située entre l'évent et la nageoire dorsale. Ils présentent des cicatrices, comme toutes les espèces du genre Mesoplodon. Les femelles sont gris ardoise avec les flancs et le ventre blanc grisâtre. Les morsures de squalelet féroce sont observables chez les deux sexes.

Comportement

Le comportement de l'espèce est entièrement méconnu, mais l'on suppose que la mise bas se déroule au printemps et en été au large de la Nouvelle-Zélande.

Habitat et répartition

 src=
Répartition de la baleine à bec d'Andrews.

La baleine à bec d'Andrews vit dans l'hémisphère sud, et son aire de répartition exacte est incertaine. Quelque 35 spécimens échoués ont été enregistrés en Australie et en Nouvelle-Zélande, l'île Macquarie, les Malouines, au Pays de Galles et dans l'archipel Tristan da Cunha. Des échouages ont été également enregistrés aux Kerguelen[1]. Cette distribution pourrait être circumpolaire, cependant aucune observation n'a étayé cette thèse.

Voir aussi

Références taxinomiques

Notes et références
  • (en) Cet article est partiellement ou en totalité issu de l’article de Wikipédia en anglais intitulé .
  1. a et b (fr) Maurizio Würtz et Nadia Repetto (trad. Marie-Paule Duverne), Dauphins et Baleines, Paris, Gründ, 1999, 167 p. (ISBN 2-7000-3421-X), p. 150

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Baleine à bec d'Andrews: Brief Summary ( French )

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Mesoplodon bowdoini

La baleine à bec d'Andrews (Mesoplodon bowdoini) est une espèce de cétacés de la famille des Ziphiidae et est l'un des membres les plus méconnus d'un genre mal connu. Aussi appelée baleine à bec de Bowdoin, sa dénomination spécifique bowdoini fait référence à George S. Bowdoin, un des donateurs de l'American Museum of Natural History. Cette espèce est remarquable pour ne pas avoir encore été observée dans la nature depuis 2002.

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Mesoplodon bowdoini ( Italian )

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Il mesoplodonte di Bowdoin (Mesoplodon bowdoini) è un cetaceo odontoceto della famiglia Ziphiidae. È uno dei membri meno conosciuti di un genere poco conosciuto. Il nome specifico bowdoini gli è stato dato in riferimento a George S. Bowdoin, un donatore del Museo Americano di Storia Naturale. Questa specie è degna di nota per non essere mai stata osservata in natura prima del 2002.

Descrizione fisica

 src=
Cucciolo spiaggiato in Tasmania
 src=
Particolare della testa

Il corpo del mesoplodonte di Bowdoin è piuttosto robusto rispetto a quello di altri membri del genere. Il melone di questo zifide è piuttosto basso ed il rostro è breve e sottile. La mascella inferiore è caratteristica in quanto la sua parte centrale si protende verso l'alto ed i denti si estendono al di sopra del rostro (o "becco"). La testa inoltre presenta qualche volta una macchia chiara ai suoi lati, più saliente nei maschi. I maschi, dalla colorazione uniforme che va dal grigio scuro al nero, hanno sul dorso un segno a forma di "sella" tra lo sfiatatoio e la pinna dorsale. I maschi presentano anche le cicatrici tipiche di questo genere. Le femmine sono grigio ardesia con i fianchi e il ventre bianco-grigiastri. In entrambi i sessi sono presenti i segni dei morsi dello squalo cookie-cutter. Si crede che le femmine raggiungano al massimo i 4,9 metri e i maschi i 4,5 metri. Alla nascita si sostiene che i piccoli siano lunghi circa 2,2 metri.

Comportamento

Al largo della Nuova Zelanda la stagione dei parti avviene in primavera ed estate, ma oltre a questo ogni tipo di comportamento è completamente sconosciuto.

Popolazione e distribuzione

Questa specie vive nell'emisfero meridionale e quale sia il suo preciso areale è incerto. 35 esemplari spiaggiati sono stati registrati in Australia e in Nuova Zelanda, sull'isola Macquarie, sulle isole Falkland, in Galles e a Tristan da Cunha. Il loro areale sembrerebbe implicare una distribuzione circumpolare. Comunque, non ci sono ancora stati avvistamenti confermati a questo riguardo.

Conservazione

Questa specie non è mai stata cacciata e non esistono dati su catture occasionali nelle reti da pesca.

Bibliografia

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Mesoplodon bowdoini: Brief Summary ( Italian )

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Il mesoplodonte di Bowdoin (Mesoplodon bowdoini) è un cetaceo odontoceto della famiglia Ziphiidae. È uno dei membri meno conosciuti di un genere poco conosciuto. Il nome specifico bowdoini gli è stato dato in riferimento a George S. Bowdoin, un donatore del Museo Americano di Storia Naturale. Questa specie è degna di nota per non essere mai stata osservata in natura prima del 2002.

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Bowdoinspitssnuitdolfijn ( Dutch; Flemish )

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De Bowdoinspitssnuitdolfijn of Andrewsspitssnuitdolfijn (Mesoplodon bowdoini) is een walvisachtige uit de familie der spitssnuitdolfijnen (Ziphiidae). Deze soort is enkel bekend van strandingen en is nog nooit levend waargenomen.

De Bowdoinspitssnuitdolfijn is een robuuste, torpedovormige spitssnuitdolfijn met kleine borstvinnen, een kleine, sikkelvormige, ver naar achteren geplaatste rugvin en een brede, ongekerfde staart. De meloen is vrij vlak. De bek is kort en breed. Hij is te herkennen aan een welving in het midden van de onderkaak, op ongeveer twintig centimeter van het uiteinde van de bek. De twee tanden van de spitssnuitdolfijn bevinden zich hier. Bij de volwassen mannetjes steken de driehoekige, zijdelings afgeplatte tanden naar buiten, zelfs als de bek gesloten is. Bij de vrouwtjes en jonge dieren liggen de tanden verborgen in het tandvlees. Hij is donker van kleur, mannetjes zijn donkerblauw tot zwart. Het uiteinde van de bek en de onderkaak zijn wit. Hij is ongeveer 4 tot 4,6 m lang en 1000 tot 2600 kg zwaar.

De Bowdoinspitssnuitdolfijn komt voor in gematigd koele wateren van het zuidelijke Indo-Pacifische gebied. Strandingen hebben plaatsgevonden langs de kust van Australië, in de deelstaten West-Australië, Victoria, Nieuw-Zuid-Wales en Tasmanië, en in Nieuw-Zeeland, zowel op het Noorder- als het Zuidereiland en op Stewart- en Campbell-eiland.

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Dziobowal rozdzielnozębny ( Polish )

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Dziobowal rozdzielnozębny[3], wal nowozelandzki[4] (Mesoplodon bowdoini) – gatunek ssaka z rodziny zyfiowatych (Ziphiidae). Po raz pierwszy opisał go George S. Bowdoin z Amerykańskiego Muzeum Historii Naturalnej w 1908 roku. Młode chwilę po urodzeniu mierzy około 2,2 metra długości. Dorosłe osobniki osiągają od 4,6 (samce) do prawie 5 metrów (samice) przy masie ciała 2,2-2,6 ton.[5] Ubarwienie od ciemno szarego po matowo czarne. Gatunek ten występuje u południowych wybrzeży Australii oraz u wybrzeży Tasmanii, Nowej Zelandii, Falklandów, Urugwaju i Wyspy Świętej Heleny[2][6]. Badacze posiadają zbyt mało danych by określić jego stopień zagrożenia[7].

Przypisy

  1. Mesoplodon bowdoini, w: Integrated Taxonomic Information System (ang.).
  2. a b Taylor, B.L., Baird, R., Barlow, J., Dawson, S.M., Ford, J., Mead, J.G., Notarbartolo di Sciara, G., Wade, P. & Pitman, R.L. 2008, Mesoplodon bowdoini [w:] The IUCN Red List of Threatened Species 2015 [online], wersja 2015-3 [dostęp 2015-09-23] (ang.).
  3. Włodzimierz Cichocki, Agnieszka Ważna, Jan Cichocki, Ewa Rajska, Artur Jasiński, Wiesław Bogdanowicz: Polskie nazewnictwo ssaków świata. Warszawa: Muzeum i Instytut Zoologii PAN, 2015, s. 191. ISBN 978-83-88147-15-9.
  4. Polskie i łacińskie nazwy waleni. Stacja Morska Instytutu Oceanografii Uniwersytetu Gdańskiego. [dostęp 2015-09-23].
  5. Mesoplodon bowdoini Andrew's beaked whale. Animal Diversity Web. [dostęp 2009-11-08].
  6. Wilson Don E. & Reeder DeeAnn M. (red.) Mesoplodon bowdoini. w: Mammal Species of the World. A Taxonomic and Geographic Reference (Wyd. 3.) [on-line]. Johns Hopkins University Press, 2005. (ang.) [dostęp 20 stycznia 2010]
  7. Taylor, B.L., Baird, R., Barlow, J., Dawson, S.M., Ford, J., Mead, J.G., Notarbartolo di Sciara, G., Wade, P. & Pitman, R.L. Mesoplodon bowdoini. In: IUCN 2008. „IUCN Red List of Threatened Species”, 2008.
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Dziobowal rozdzielnozębny: Brief Summary ( Polish )

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Dziobowal rozdzielnozębny, wal nowozelandzki (Mesoplodon bowdoini) – gatunek ssaka z rodziny zyfiowatych (Ziphiidae). Po raz pierwszy opisał go George S. Bowdoin z Amerykańskiego Muzeum Historii Naturalnej w 1908 roku. Młode chwilę po urodzeniu mierzy około 2,2 metra długości. Dorosłe osobniki osiągają od 4,6 (samce) do prawie 5 metrów (samice) przy masie ciała 2,2-2,6 ton. Ubarwienie od ciemno szarego po matowo czarne. Gatunek ten występuje u południowych wybrzeży Australii oraz u wybrzeży Tasmanii, Nowej Zelandii, Falklandów, Urugwaju i Wyspy Świętej Heleny. Badacze posiadają zbyt mało danych by określić jego stopień zagrożenia.

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Baleia-bicuda-de-bowdoin ( Portuguese )

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A baleia-bicuda-de-bowdoin (Mesoplodon bowdoini), ou baleia-bicuda-de-andrews, é um cetáceo da família dos zifiídeos (Ziphiidae) encontrado em águas temperadas margeando o sul da Austrália e Nova Zelândia.

Referências

  1. Pitman, R.L.; Brownell Jr.; R.L. (2020). «Mesoplodon bowdoini». Lista Vermelha de Espécies Ameaçadas. 2020: e.T13242A50363892. doi:. Consultado em 19 de novembro de 2021
  • MEAD, J. G.; BROWNELL, R. L. (2005). Order Cetacea. In: WILSON, D. E.; REEDER, D. M. (Eds.) Mammal Species of the World: A Taxonomic and Geographic Reference. 3ª edição. Baltimore: Johns Hopkins University Press. p. 723-743.
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Baleia-bicuda-de-bowdoin: Brief Summary ( Portuguese )

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A baleia-bicuda-de-bowdoin (Mesoplodon bowdoini), ou baleia-bicuda-de-andrews, é um cetáceo da família dos zifiídeos (Ziphiidae) encontrado em águas temperadas margeando o sul da Austrália e Nova Zelândia.

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Andrews näbbval ( Swedish )

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Andrews näbbval (Mesoplodon bowdoini), är en av de minst kända arterna i ett väldigt dåligt känt släkte. Det vetenskapliga namnet bowdoini är uppkallat efter George S. Bowdoin, en donator till American Museum of Natural History. Den här arten är noterbar för att inte ha observerats i det vilda sedan 2002.

Beskrivning

Kroppen är ganska robust jämfört med andra medlemmar av släktet. Valens melon är ganska låg och näbben är kort och tunn.

Huvudet har ibland en ljus fläck på sidorna, mer framträdande hos hanarna. Hanar, som i överlag är mörkgråa-svarta, har ett ljusare "sadelmärke" mellan blåshålet och ryggfenan. De bär också ärr som är typiska för släktet. Honor är skiffergråa med gråaktiga-vita sidor och buk. Bett från cigarrhajen förekommer hos båda könen. Honor antas uppnå en längd på minst 4,9 meter och hanar 4.5 meter. Ungar tros vara runt 2,2 meter långa när de föds.

Kalvningssäsongen kan äga rum under vår och sommar runt Nya Zeeland, annars är andra beteenden helt okända.

Population och utbredning

Arten lever i södra hemisfären, och dess exakta utbredning är oklar. 35 strandade individer har noterats i Australien och Nya Zeeland, Macquarieön, Falklandsöarna, Wales och Tristan da Cunha. De fynden kan betyda en cirkumpolär utbredning. Dock finns det inga bekräftade siktningar som stödjer detta.

Den här arten har aldrig jagats och det finns inga fynd som visar att den har fångats i fisknät.

Referenser

Externa länkar

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Andrews näbbval: Brief Summary ( Swedish )

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Andrews näbbval (Mesoplodon bowdoini), är en av de minst kända arterna i ett väldigt dåligt känt släkte. Det vetenskapliga namnet bowdoini är uppkallat efter George S. Bowdoin, en donator till American Museum of Natural History. Den här arten är noterbar för att inte ha observerats i det vilda sedan 2002.

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Çıkık dişli gagalı balina ( Turkish )

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Çıkık dişli gagalı balina (Mesoplodon bowdoini), gagalı balinagiller (Ziphiidae) familyasından iki dişli balina (Mesoplodon) cinsine ait bir balina türü. Amerikalı zoolog Roy Andrews tarafından 1908 yılında tarif edilmiştir.

Yayılım

 src=
Yayılım

Çıkık dişli gagalı balinanın Avustralya ve Yeni zelanda kıyılarında karaya vurmuş cesetleri bulunmuştur. Yayılımı bu civardan daha da güneye doğru, Güney Kutbuna kadar vardığı tahmin edilir.

Özellikleri

Bu balinaların torpido şeklinde bir vücudu, küçük yüzgeçleri ve büyük bir kuyruk yüzgeci olur. Renkleri lacivert ile siyah (erkekler gri) arası değişir. Diğer gagalı balinalarda olduğundan daha kısa olan burunları beyazdır. Erkeklerin ayrıca iki adet üçgen şeklinde azman dişi ağızından çıkık durur. Boyları 4,5 metreye ve ağırlıkları 2600 Kiloya ulaşır.

Karaya vurmuş bireylerin miğdeleri araştırıldığında içinde bol ahtopot ve az miktarda balık bulunmuştur.

Kitaplar

  • Rüdiger Wandrey: Die Wale und Robben der Welt. Franckh-Kosmos Verlags GmbH, 1997, ISBN 3-440-07047-6

Dış bağlantılar

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Çıkık dişli gagalı balina: Brief Summary ( Turkish )

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Çıkık dişli gagalı balina (Mesoplodon bowdoini), gagalı balinagiller (Ziphiidae) familyasından iki dişli balina (Mesoplodon) cinsine ait bir balina türü. Amerikalı zoolog Roy Andrews tarafından 1908 yılında tarif edilmiştir.

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Ременезуб новозеландський ( Ukrainian )

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Ременезуб новозеландський (Mesoplodon bowdoini) — кит з роду Ременезуб, родини Дзьоборилові. В основі рострума, як і в ременезуба Карл-Хубса є дві пари предочних виїмок, але бічний контур коронки зуба нагадує трикутник.


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Ременезуб новозеландський: Brief Summary ( Ukrainian )

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Ременезуб новозеландський (Mesoplodon bowdoini) — кит з роду Ременезуб, родини Дзьоборилові. В основі рострума, як і в ременезуба Карл-Хубса є дві пари предочних виїмок, але бічний контур коронки зуба нагадує трикутник.


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Cá voi mõm khoằm Andrews ( Vietnamese )

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Cá voi mõm khoằm Andrews (danh pháp hai phần: ) là một loài cá trong họ Ziphidae. Cá voi mõm khoằm Andrews sinh sống ở Nam bán cầu, và phạm vi chính xác là không chắc chắn. Khoảng 35 mẫu vật bị mắc kẹt đã được ghi nhận ở Úc và New Zealand, Macquarie Island, quần đảo Falkland, và Tristan da Cunha. Đó là phạm vi có thể bao hàm sự phân phối quanh vùng Nam Cực. Tuy nhiên, có không nhìn thấy xác nhận để xác nhận điều này.

Hình ảnh

Chú thích

  1. ^ Taylor, B.L., Baird, R., Barlow, J., Dawson, S.M., Ford, J., Mead, J.G., Notarbartolo di Sciara, G., Wade, P. & Pitman, R.L. (2008). Mesoplodon bowdoini. 2008 Sách đỏ IUCN. Liên minh Bảo tồn Thiên nhiên Quốc tế 2008. Truy cập ngày 24 tháng 3 năm 2009. Database entry includes a brief justification of why this species is of data deficient

Tham khảo

Liên kết ngoài

 src= Phương tiện liên quan tới Mesoplodon bowdoini tại Wikimedia Commons


Hình tượng sơ khai Bài viết liên quan đến Bộ Cá voi (Cetacea) này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Cá voi mõm khoằm Andrews: Brief Summary ( Vietnamese )

provided by wikipedia VI

Cá voi mõm khoằm Andrews (danh pháp hai phần: ) là một loài cá trong họ Ziphidae. Cá voi mõm khoằm Andrews sinh sống ở Nam bán cầu, và phạm vi chính xác là không chắc chắn. Khoảng 35 mẫu vật bị mắc kẹt đã được ghi nhận ở Úc và New Zealand, Macquarie Island, quần đảo Falkland, và Tristan da Cunha. Đó là phạm vi có thể bao hàm sự phân phối quanh vùng Nam Cực. Tuy nhiên, có không nhìn thấy xác nhận để xác nhận điều này.

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Новозеландский ремнезуб ( Russian )

provided by wikipedia русскую Википедию
Царство: Животные
Подцарство: Эуметазои
Без ранга: Вторичноротые
Подтип: Позвоночные
Инфратип: Челюстноротые
Надкласс: Четвероногие
Подкласс: Звери
Инфракласс: Плацентарные
Надотряд: Лавразиотерии
Подотряд: Зубатые киты
Семейство: Клюворыловые
Вид: Новозеландский ремнезуб
Международное научное название

Mesoplodon bowdoini (Andrews, 1908)

Ареал

изображение

Охранный статус
Status none DD.svg
Недостаточно данных
IUCN Data Deficient: 13242
Wikispecies-logo.svg
Систематика
на Викивидах
Commons-logo.svg
Изображения
на Викискладе
ITIS 180513NCBI 74393EOL 328564FW 81915

Новозеландский ремнезуб (Mesoplodon bowdoini) — вид китообразных семейства клюворыловых (Ziphiidae). Известен по двум экземплярам взрослых самцов, найденных на Новой Зеландии. Видовое латинское название дано в честь Джорджа Саливана Боудина (1833—1913), попечителя американского музея естественной истории[1].

Описание

Новозеландский ремнезуб достигает длины до 4,7 м и веса до 1,5 т. Окрас тела сине-чёрный. Рострум в основном белый. В его основании две пары предглазничных выемок. Зубы по форме напоминают треугольник. Плавники очень маленькие, спинной плавник расположен, как у всех клюворылых, относительно далеко сзади.

Распространение

Новозеландский ремнезуб обитает в водах Новой Зеландии и юга Австралии.

Примечания

  1. Bo Beolens, Michael Watkins, and Mike Grayson. The eponym dictionary of mammals. — Baltimore: The Johns Hopkins University Press, 2009. — P. 53. — 574 p. — ISBN 978-0-8018-9304-9.
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Авторы и редакторы Википедии

Новозеландский ремнезуб: Brief Summary ( Russian )

provided by wikipedia русскую Википедию

Новозеландский ремнезуб (Mesoplodon bowdoini) — вид китообразных семейства клюворыловых (Ziphiidae). Известен по двум экземплярам взрослых самцов, найденных на Новой Зеландии. Видовое латинское название дано в честь Джорджа Саливана Боудина (1833—1913), попечителя американского музея естественной истории.

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安氏中喙鯨 ( Chinese )

provided by wikipedia 中文维基百科
二名法 Mesoplodon bowdoini
Andrews, 1908 安氏中喙鯨的分布范围
安氏中喙鯨的分布范围

安氏中喙鯨學名Mesoplodon bowdoini)旧称安竹氏喙鲸,又称突齿喙鲸波多因氏喙鲸高顶喙鲸。其已知的研究資料極少,可能在南極聚合帶(Antarctic Convergence)北方呈環極區分布。在其分布範圍內有35次以上的發現記錄,但全部都是擱淺的個體,大部分在紐西蘭澳洲發現。命名者羅伊·查普曼·安德魯斯曾擔任美國自然歷史博物館館長,他在任內以此博物館的委託者與捐獻者George S. Bowdoin之名為此物種命名。

基本資料

其他俗名:

  • 英:Bowdoin's Beaked Whale、Deepcrest Beaked Whale
  • 法:MÉSOPLODON DE ANDREW、MÉSOPLODON DE BOWDOIN
  • 西:BALLENA DE PICO DE ANDREW、ZIFIO DE ANDREW

出生時身長體重:1.6m;體重未知

最大身長體重紀錄:雄性至少4.5m、雌性4.9m;體重未知

壽命:未知

形态特徵

安氏中喙鯨的體型粗壯,額隆平坦,嘴喙短而粗,巨大的下顎在中段形成明顯的拱起。背鰭小,呈三角形,尖端圓鈍,位於背部中央後方。成年雄鯨下顎可見2顆外露的巨大牙齒,側面寬闊但相當扁平,位於距下顎尖端約20公分處。

安氏中喙鯨的體色普遍呈暗灰至黑色,僅嘴喙前端與下顎為白色,部分個體在眼睛前方有淺色斑塊。成年雄鯨背部有淺灰色的「馬鞍」saddle,為一橫跨背部中線、外觀大致呈馬鞍狀的斑紋,常會延伸至身體側面。),由噴氣孔後方延伸至背鰭。一般認為雌鯨的嘴喙顏色比雄鯨來得深,背部呈石板一般的灰色,腹部與側腹則是較淺的灰白色。成年雄鯨的體表常有長條直線狀傷痕,可能是其他雄鯨造成。無論雄鯨或雌鯨皆有因雪茄鮫(cookiecutter shark)攻擊留下的橢圓形傷痕。

分布

安氏中喙鯨僅分布於南半球,可能在溫帶緯度(南緯32度至南緯54度30分之間)海域呈環極區分布。擱淺記錄已知在澳洲南部、紐西蘭、麥加利群島(Macquarie Islands)、福克蘭群島、與垂斯坦昆哈(Tristan da Chunha)。在南印度洋克革倫群島(Kerguelen Islands)與祕魯的發現記錄可能是其他中喙鯨的誤認。

習性、生殖、食性

由於沒有可信的海中目擊記錄與群體擱淺,科學家對其社會結構、習性或生殖、覓食的習慣幾乎完全不明。位於紐西蘭海域的族群,其繁殖季似乎自夏季至秋季。

現狀

安氏中喙鯨的數量不明。未曾有被捕殺的記錄,也沒有因漁業活動而造成死亡的跡象。

参考文献

  • Pieter A. Folken, Randall R. Reeves, etc. / illustrated by Pieter A. Folkens, Guide to MARINE MAMMALS of the World, Alfred A. Knopf, 2002: p286-287. ISBN 0-375-41141-0
  • Mark Carwardine / illustrated by Martin CammDorling, 《DORLING KINDERSLEY HANDBOOKS: WHALES, DOLPHINS AND PORPOISES》, Dorling Kindersley, 1995: p116-117. ISBN 0-7513-2781-6
  • James G. Mead, 《Beaked Whales of the Genus Mesoplodon》, edited by Sam H. Ridgway and Sir Richard Harrison, F.R.S. 《Handbook of Marine Mammals, Volume 4: River Dolphins and the Larger Toothed Whales》, Academic Press, 1989: p349-430. ISBN 0-12-588504-0
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安氏中喙鯨: Brief Summary ( Chinese )

provided by wikipedia 中文维基百科

安氏中喙鯨(學名:Mesoplodon bowdoini)旧称安竹氏喙鲸,又称突齿喙鲸,波多因氏喙鲸和高顶喙鲸。其已知的研究資料極少,可能在南極聚合帶(Antarctic Convergence)北方呈環極區分布。在其分布範圍內有35次以上的發現記錄,但全部都是擱淺的個體,大部分在紐西蘭澳洲發現。命名者羅伊·查普曼·安德魯斯曾擔任美國自然歷史博物館館長,他在任內以此博物館的委託者與捐獻者George S. Bowdoin之名為此物種命名。

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タイヘイヨウオウギハクジラ ( Japanese )

provided by wikipedia 日本語
タイヘイヨウオウギハクジラ 典型的なサイズの人間と比較したタイヘイヨウオウギハクジラ
典型的なサイズの人間と比較したタイヘイヨウオウギハクジラ
保全状況評価 DATA DEFICIENT (IUCN Red List Ver. 3.1 (2001))
Status none DD.svg
分類 : 動物界 Animalia : 脊索動物門 Chordata 亜門 : 脊椎動物亜門 Vertebrata : 哺乳綱 Mammalia : 鯨偶蹄目 Cetartiodactyla 亜目 : ハクジラ亜目 Odontoceti : アカボウクジラ科 Ziphiidae 亜科 : トックリクジラ亜科 Hyperoodontinae : オウギハクジラ属 Mesoplodon : タイヘイヨウオウギハクジラ
M. bowdoini 学名 Mesoplodon bowdoini
Andrews(1908) 和名 タイヘイヨウオウギハクジラ 英名 Andrews' Beaked Whale タイヘイヨウオウギハクジラ生息域
タイヘイヨウオウギハクジラ生息域

タイヘイヨウオウギハクジラ(太平洋扇歯鯨、Mesoplodon bowdoini)はハクジラ亜目アカボウクジラ科オウギハクジラ属に属する小型のクジラである。2002年時点で、野生下での生体の観察例は報告されておらず、不明な点の多いオウギハクジラ類の中でも詳細が判明していないの一つである。

種小名の bowdoiniアメリカ自然史博物館への援助で知られるジョージ・ボードン (George S. Bowdon) に由来する。英名の Andrews' はタイヘイヨウオウギハクジラを新種として報告したアンドルーズ (Andrews) に由来する。他の英名としてはDeep-crest Beaked Whale、Splay Toothed Whale が知られる。

身体[編集]

タイヘイヨウオウギハクジラの体型は他のオウギハクジラ類よりもがっしりしている。頭部メロンは小さく、口吻は短くて太い。下顎の根元側の半分近くが上顎よりも外側にはみ出しており、下顎に2本だけあるが露出している。上顎には歯はない。

雄の体色は背側は濃い灰色である。噴気孔背びれの間にのような模様がある。頭部側面には明るい斑点模様があることもある。雌の背側は濃い青灰色であり、側面や腹側は白っぽい灰色である。多くの個体はダルマザメ (Cookiecutter shark) に咬まれた跡である白い傷跡や斑点を有するが、雄は同種の雄同士の争いで傷を負っている場合もある。

生体の雄の体長は4.5m、雌は5m程度、体重は1,000kgから1,500kg程度である。産まれた直後の体長は2.2m程度だと考えられる。

生息域、生息数[編集]

座礁例が35例報告されており、場所はオーストラリアニュージーランドマッコーリー島フォークランド諸島トリスタン・ダ・クーニャである。以上の事から生息域は南半球であり、主に南極に近い海域に棲息すると考えられるが、野生下における目撃例がなく裏付けはない。全生息数は不明であり、IUCNレッドリストでは「データ不足」 (DD - Data Deficient) に分類されている。

生態[編集]

生態はほとんど不明である。 主にイカタコなどの頭足類を食べる。 ニュージーランド沖で、春から夏にかけて出産していると推定されている。

保護、人間との関り[編集]

捕鯨の対象となったことはなく、漁網などによる混獲の例も報告されていない。

参考文献・外部リンク[編集]

  1. Cetacean Specialist Group, Mesoplodon bowdoini in IUCN Red List of Threatened Species (2006).
  2. Encyclopedia of Marine Mammals, William F. Perrin, Bernd Wursig, and J. G. M. Thewissen eds., Academic Press (2002). ISBN 0-12-551340-2
  3. Randall R. Reeves, Brent S. Steward, Phillip J. Clapham, and James A. Owell, Sea Mammals of the World, A & C Black, London (2002). ISBN 0-7136-6334-0
  4. Andrews' Beaked Whale Factsheets
  5. Andrews' Beaked Whale Texas A&M University-Corpus Christi
  6. Mesoplodon bowdoini CMS (Conservation on Migratory Species)
  7. 海棲哺乳類図鑑「タイヘイヨウオウギハクジラ」 国立科学博物館 動物研究部
執筆の途中です この項目は、動物に関連した書きかけの項目です。この項目を加筆・訂正などしてくださる協力者を求めていますPortal:生き物と自然プロジェクト:生物)。
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wikipedia 日本語

タイヘイヨウオウギハクジラ: Brief Summary ( Japanese )

provided by wikipedia 日本語

タイヘイヨウオウギハクジラ(太平洋扇歯鯨、Mesoplodon bowdoini)はハクジラ亜目アカボウクジラ科オウギハクジラ属に属する小型のクジラである。2002年時点で、野生下での生体の観察例は報告されておらず、不明な点の多いオウギハクジラ類の中でも詳細が判明していないの一つである。

種小名の bowdoini はアメリカ自然史博物館への援助で知られるジョージ・ボードン (George S. Bowdon) に由来する。英名の Andrews' はタイヘイヨウオウギハクジラを新種として報告したアンドルーズ (Andrews) に由来する。他の英名としてはDeep-crest Beaked Whale、Splay Toothed Whale が知られる。

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앤드류부리고래 ( Korean )

provided by wikipedia 한국어 위키백과

앤드류부리고래(Mesoplodon bowdoini)는 부리고래과 이빨부리고래속에 속하는 고래의 일종이다.[2] 이빨부리고래속 중에서 가장 덜 알려진 종이다.

각주

  1. “Mesoplodon bowdoini”. 《멸종 위기 종의 IUCN 적색 목록. 2008판》 (영어). 국제 자연 보전 연맹. 2008. 2009년 3월 24일에 확인함. Database entry includes a brief justification of why this species is of data deficient
  2. Mead, J.G.; Brownell, R.L., Jr. (2005). 〈Order Cetacea〉 [고래목]. Wilson, D.E.; Reeder, D.M. 《Mammal Species of the World: A Taxonomic and Geographic Reference》 (영어) 3판. 존스 홉킨스 대학교 출판사. 723–743쪽. ISBN 978-0-8018-8221-0. OCLC 62265494.
  • Encyclopedia of Marine Mammals. Edited by William F. Perrin, Bernd Wursig, and J.G.M Thewissen. Academic Press, 2002. ISBN 0-12-551340-2
  • Sea Mammals of the World. Written by Randall R. Reeves, Brent S. Steward, Phillip J. Clapham, and James A. Owell. A & C Black, London, 2002. ISBN 0-7136-6334-0
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Distribution

provided by World Register of Marine Species
circum-global in Southern Ocean

Reference

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

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IUCN Red List Category

provided by World Register of Marine Species
Data Deficient (DD)

Reference

IUCN (2008) Cetacean update of the 2008 IUCN Red List of Threatened Species.

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contributor
Perrin, William [email]