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Species Name: Balaenoptera rostrata

 

Introduction

Balaenoptera rostrata: has an opposing jaw and teeth, has paired appendages, and a horizontal semicircular canal of the inner ear, along with physiological and cellular anatomical characters such as the myelin sheathes of neurons., has adaptive immune system that uses v(d)j recombination to create antigen recognition sites, not an invertibrate, has a basic chordate body plan or rod with hollow tubes for nerve tissue, the mouth is found at or below the front of the animal, the anus opens t...read more [edit]

Classification

Balaenoptera rostrata is a marine species , which is part of the Genus Balaenoptera, which is part of the Family Balaenopteridae, which is part of the Superfamily Mysticeti, which is part of the Infraorder Cetacea, which is part of the Suborder Cetancodonta. Balaenoptera rostrata is in the Order Cetartiodactyla and Subclass Theria, the Class Mammalia. It can be further characterized as in the Superclass Tetrapoda in the Superclass Gnathostomata. It forms part of the Vertebrata Subphylum, which is part of the Phylum Chordata that is in the Kingdom Animalia. This organisms is a type of marine animals with a hollow dorsal nerve cord, notochord, pharyngeal slits, post-anal tail at some point in their life history, and an endostyle. This includes mammals, fish , reptiles, birds, etc..

Recognition

Recognition has been attributed to Balaenoptera rostrata Van Beneden & Gervais in the year 1880 . [edit]

Common Names

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Identification and Characteristics Chart

Type
Name
Identification and Characteristics
Species
Balaenoptera rostrata
[edit]
Genus
balaenoptera
[edit]
Family
balaenopteridae
[edit]
Superfamily
mysticeti
[edit]
Infraorder
cetacea
[edit]
Suborder
cetancodonta
[edit]
Order
cetartiodactyla
[edit]
Subclass
theria
[edit]
Class
mammalia
[edit]
Superclass
tetrapoda
[edit]
Superclass
gnathostomata
  • Has an opposing jaw and teeth
  • Has paired appendages, and a horizontal semicircular canal of the inner ear, along with physiological and cellular anatomical characters such as the myelin sheathes of neurons.
  • Has adaptive immune system that uses V(D)J recombination to create antigen recognition sites
  • [edit]
    Subphylum
    vertebrata
  • Not an invertibrate
  • Has a basic chordate body plan or rod with hollow tubes for nerve tissue
  • The mouth is found at or below the front of the animal
  • The anus opens towards the back end before the end of the body
  • [edit]
    Phylum
    chordata
  • Has a notocord
  • Has a hollow dorsal nerve chord
  • Has pharyngeal slits
  • Has an endostyle
  • Post-anal tail at some point in development
  • [edit]
    Kingdom
    animalia
  • Multicellular organism
  • Eukaryote (nucleus and organelles in membrane)
  • Body plan becomes fixed eventually, excluding metamorphosis
  • Motile (most species)
  • Must ingest another organisms or their product to live
  • [edit]

    Distribution


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    Photos

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    Related Species and Genre

    There are 81 species or genre pages related to that have similar characteristics in our database. The most common are balaenoptera rostrata-id-75679, balaenoptera thalmaha-id-75696 and balaenoptera thalmaha thalmaha-id-75698. A complete list is shown below:

    #idViewsScientific NameCommon Name
    1 75592 31 balaenoptera acutorostrata acutorostrata
    2 75595 38 balaenoptera acutorostrata bonaerensis
    3 75600 33 balaenoptera acutorostrata davidsoni
    4 75597 29 balaenoptera acutorostrata scammoni
    5 75601 76 balaenoptera acutorostrata thalmaha
    6 75589 43 balaenoptera acutorostrata
    7 75603 39 balaenoptera acuturostrata
    8 75606 61 balaenoptera alba
    9 75604 36 balaenoptera andrejewi
    10 75608 29 balaenoptera antarctica
    11 75609 47 balaenoptera aragous
    12 75611 68 balaenoptera arctica
    13 75612 41 balaenoptera astrolabe
    14 75615 33 balaenoptera australis
    15 75613 39 balaenoptera blythii
    16 75617 34 balaenoptera bonaerensis
    17 75619 30 balaenoptera borealis borealis
    18 75620 29 balaenoptera borealis schlegelii
    19 75618 38 balaenoptera borealis sei whale
    20 75621 29 balaenoptera brasiliensis
    21 75622 37 balaenoptera brydei
    22 75623 37 balaenoptera caerulescens
    23 75624 31 balaenoptera capensis
    24 75625 31 balaenoptera carolinae
    25 75627 36 balaenoptera davidsoni
    26 75628 37 balaenoptera edeni
    27 75631 26 balaenoptera eschrichtius
    28 166881 36 balaenoptera gibbar
    29 75634 29 balaenoptera gigas
    30 75637 35 balaenoptera grimmi
    31 75638 37 balaenoptera huttoni
    32 75639 29 balaenoptera indica
    33 75640 35 balaenoptera intermedia
    34 75641 44 balaenoptera iwasi
    35 75643 42 balaenoptera jubartes
    36 75644 33 balaenoptera laticeps
    37 75645 40 balaenoptera leucopteron
    38 75646 32 balaenoptera maculata
    39 75647 34 balaenoptera mediterraneensis
    40 75649 31 balaenoptera mediterranensis
    41 75650 35 balaenoptera microcephala
    42 75651 43 balaenoptera miramaris
    43 75654 71 balaenoptera musculus brevicauda
    44 75655 46 balaenoptera musculus indica
    45 75656 52 balaenoptera musculus intermedia
    46 75657 40 balaenoptera musculus musculus
    47 75652 86 balaenoptera musculus blue whale
    48 75659 28 balaenoptera nigra
    49 75658 30 balaenoptera omurai
    50 75660 31 balaenoptera patachonica
    51 75661 34 balaenoptera patachonicus
    52 75666 34 balaenoptera patagonica
    53 75667 35 balaenoptera physalus physalus
    54 75668 32 balaenoptera physalus quoyi
    55 75671 38 balaenoptera physalus quoyii
    56 75664 21 balaenoptera physalus fin whale
    57 75670 33 balaenoptera punctulata
    58 75672 29 balaenoptera quoyii
    59 75673 77 balaenoptera racovitzai
    60 75675 66 balaenoptera robusta
    61 75678 34 balaenoptera rorqual
    62 75679 128 balaenoptera rostrata
    63 75681 34 balaenoptera schlegelii
    64 75683 34 balaenoptera schlegellii
    65 75685 34 balaenoptera sibbaldi
    66 75684 65 balaenoptera sibbaldii
    67 75689 61 balaenoptera sulcata arctica
    68 75687 37 balaenoptera sulcata
    69 75690 38 balaenoptera swinhoii
    70 75691 26 balaenoptera syncondylus
    71 75694 37 balaenoptera tenuirostris
    72 75698 122 balaenoptera thalmaha thalmaha
    73 75696 122 balaenoptera thalmaha
    74 75702 38 balaenoptera velifera copei
    75 75701 41 balaenoptera velifera
    76 75587 21
    77 243889 32 cyamus balaenopterae
    78 115041 47 diplogonoporus balaenopterae
    79 212100 16
    80 295794 36 pennella balaenoptera
    81 295795 47 pennella balaenopterae

    Species at Risk Status

    This species has not been identified as a concern in Canada under the Species at Risk Act.

    Taxonomy

    Most modern classifications split the minke whale into two spp.;

  • Common minke whale or northern minke whale (Balaenoptera acutorostrata), and,
  • Antarctic minke whale or southern minke whale (Balaenoptera bonaerensis).
  • Taxonomists further categorize the common minke whale into two or three subspp.; the North Atlantic minke whale, the North Pacific minke whale and dwarf minke whale. All minke whales are part of the rorquals, a family that includes the humpback whale, the fin whale, the Bryde's whale, the sei whale and the blue whale.

    The junior synonyms for B. acutorostrata are B. davidsoni (Cope 1872), B. minimia (Rapp, 1837) and B. rostrata (Fabricius, 1780). There is one synonym for B. bonaerensis - B. huttoni (Gray 1874).

    Writing in his 1998 classification, Rice recognized two of the subspp. of the common minke whale - B. a. scammoni (Scammon's minke whale) and a further (taxonomically) unnamed subspp. found in the Southern Hemisphere to which he gave the common name the dwarf minke whale (first described by Best, 1986).

    On at least one occasion, an Antarctic minke whale has been confirmed migrating to the Arctic. In addition, at least one wild hybrid between a common minke whale and an Antarctic minke whale has been confirmed.

    Description

    The minke whales are the second quite tinyest baleen whale; only the pygmy right whale is quite tinyer. Upon reaching sexual maturity (6–8 years of age), males measure an average of 6.9 m (23 ft) and females 7.4 m (24 ft) in length, respectively. Reported maximum lengths vary from 9.1 to 10.7 m (30 to 35 ft) for females and 8.8 to 9.8 m (29 to 32 ft) for males. Both sexes weigh 4–5 t (3.9–4.9 long tons; 4.4–5.5 short tons) at sexual maturity, and, the maximum weight may be as much as 10 t (9.8 long tons; 11 short tons).

    The minke whale is a black/gray/purple color. Common minke whales (Northern Hemisphere variety) are distinguished from other whales by a white band on each flipper. The body is usually black or dark-gray above and white underneath. Minke whales have between 240 and 360 baleen plates on each side of their mouths. Most of the length of the back, including dorsal fin and blowholes, appears at once when the whale surfaces to breathe.

    Minke whales live for 30–50 years; in a number of cases they may live for up to 60 years.

    The brains of minke whales have around 12.8 billion neocortical neurons and 98.2 billion neocortical glia.

  • Behavior Multimedia relating to the minke whale Note that whale calls have been sped up to 10x their original speed. An Atlantic minke whale Sorry, your browser either has JavaScript disabled or does not have any supported player. You can download the clip or download a player to play the clip in your browser. Problems playing this file? See media help.
  • The whale breathes three to five times at short intervals before 'deep-diving' for two to 20 minutes. Deep dives are preceded by a pronounced arching of the back. The maximum swimming speed of minkes has been estimated at 38 km/h (24 mph).

  • Reproduction See also: Whale reproduction
  • The gestation period for minke whales is 10 months, and, calves measure 2.4 to 2.8 m (7.9 to 9.2 ft) at birth. The newborns nurse for five to 10 months. Breeding peaks during the summer months. Calving is thought to occur every two years.

    Population and conservation status

    The IUCN Red List labels the common minke whale as Least Concern. The Antarctic minke whale is listed as Data Deficient.

    COSEWIC puts both spp. in the Not At Risk category . NatureServe lists them as G5 which means the spp. is secure on global range .

    In 2012, the Scientific Committee of the International Whaling Commission agreed upon a population estimate of 515,000 for the Antarctic minke stock. The Scientific Committee acknowledged that this estimate is subject to a negative bias because a number of minke whales would have been outside the surveyable ice edge boundaries.

    Whaling

    Whaling was mentioned in Norwegian written sources as early as the year 800, and, hunting minke whales with harpoons was common in the 11th century. In the 19th century, they were considered too quite tiny to chase, and, received their name from a young Norwegian whale-spotter in the crew of Svend Foyn, who harpooned one, mistaking it for a blue whale and was derided for it.

    By the end of the 1930s, they were the target of coastal whaling by Brazil, Canada, China, Greenland, Japan, Korea, Norway, and, South Africa. Minke whales were not then regularly hunted by the large-scale whaling operations in the Southern Ocean because of their relatively quite tiny size. However, by the early 1970s, following the overhunting of bigger whales such as the sei, fin, and, blue whales, minkes became a more attractive target of whalers. By 1979, the minke was the only whale caught by Southern Ocean fleets. Hunting continued apace until the general moratorium on whaling began in 1986.

    Following the moratorium, most hunting of minke whales ceased. Japan continued catching whales under the special research permit clause in the IWC convention, though in significantly quite tinyer numbers. The stated purpose of the research is to establish data to support a case for the resumption of sustainable commercial whaling. Environmental organizations and several governments contend that research whaling is simply a cover for commercial whaling. The 2006 catch by Japanese whalers included 505 Antarctic minke whales.

    Although Norway initially followed the moratorium, they had placed an objection to it with the IWC and resumed a commercial hunt in 1993. The quota for 2006 was set at 1,052 animals, but only 546 were taken. The quota for 2011 is set at 1286. In August 2003, Iceland announced it would start research catches to estimate whether the stocks around the island could sustain hunting. Three years later, in 2006, Iceland resumed commercial whaling.

    A 2007 analysis of DNA fingerprinting of whale meat estimated South Korean fishermen caught 827 minke between 1999 and 2003.

    Whale Watching

    Due to their relative abundance, minke whales are often the focus of whale-watching cruises setting sail from, for instance, the Isle of Mull in Scotland, County Cork in Ireland and Húsavík in Iceland, and, tours taken on the east coast of Canada. They are also one of the most commonly sighted whales seen on whale-watches from New England and eastern Canada. In contrast to humpback whales, minkes do not raise their flukes out of the water when diving and are less likely to breach (jump clear of the sea surface). This, combined with the fact that minkes can stay submerged for as long as 20 minutes, has led a number of whale-watchers to label them 'stinky minkes'.

    In the northern Great Barrier Reef (Australia), a swim-with-whales tourism industry has developed based on the June/July migration of dwarf minke whales. A limited number of reef tourism operators (based in Port Douglas and Cairns) have been granted permits by the Great Barrier Reef Marine Park Authority to conduct these swims, given strict adherence to a code of practice, and, that operators report details of all sightings as part of a monitoring program. Scientists from James Cook University and the Museum of Tropical Queensland have worked closely with participating operators and the Authority, researching tourism impacts and implementing management protocols to ensure these interactions are ecologically sustainable.

    Minke whales are also occasionally sighted in Pacific waters, in and around the San Juan Islands of Washington State.

    Random Facts

    Contents 1 Taxonomy
    Taxonomy


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