baleen whales louis ruspi bio109 april 13, 2011 bio109 april 13, 2011
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ClassificationClassification
• Kingdom: AnimaliaKingdom: Animalia• Phylum: ChordataPhylum: Chordata• Subphylum: VeterebrataSubphylum: Veterebrata• Class: MammaliaClass: Mammalia• Order: CetaceaOrder: Cetacea• Suborder: MysticetiSuborder: Mysticeti• Family: Balaenidae, Balaenopteridae, Family: Balaenidae, Balaenopteridae,
Eschrichtidae, and Neobalaenidae Eschrichtidae, and Neobalaenidae
Family: BalaenidaeFamily: Balaenidae
• Bowhead whale Bowhead whale Balaena mysticetusBalaena mysticetus
• Northern right whale Northern right whale Eubalaena Eubalaena glacialisglacialis
• Southern right whale Southern right whale Eubalaena Eubalaena australisaustralis
Bowhead whale Bowhead whale Balaena mysticetusBalaena mysticetus
• The only baleen The only baleen whale to spend all its whale to spend all its time in Arctic waterstime in Arctic waters
• 17,000 in existence17,000 in existence
• Skim feeders Skim feeders
Northern right whale Northern right whale Eubalaena glacialisEubalaena glacialis
• North Atlantic and North North Atlantic and North PacificPacific
• Callosities on top of Callosities on top of head and lower jaw.head and lower jaw.
• Skim feedersSkim feeders• Population 500-1,000Population 500-1,000 in
existence
Southern right whale Southern right whale Eubalaena australisEubalaena australis
• Approx. 3,000 in Approx. 3,000 in existenceexistence
• Skim FeedersSkim Feeders
Family: BalaenopteridaeFamily: Balaenopteridae
• Minke whale Minke whale Balaenoptera Balaenoptera acutorostrataacutorostrata
• Sei whale Sei whale Balaenoptera borealisBalaenoptera borealis
• Bryde’s whale Bryde’s whale Balaenoptera edeniBalaenoptera edeni
• Blue whale Blue whale Balaenoptera musculusBalaenoptera musculus
• Fin whale Fin whale Balaenoptera physalusBalaenoptera physalus
• Humpback whale Humpback whale Megaptera Megaptera novaeangliaenovaeangliae
Minke whale Minke whale Balaenoptera acutorostrataBalaenoptera acutorostrata
• Second smallest Baleen whaleSecond smallest Baleen whale
• The most abundant of baleen The most abundant of baleen whaleswhales
• Gulp feedersGulp feeders
• 800,000 minke whales world-800,000 minke whales world-widewide
Bryde’s whale Bryde’s whale Balaenoptera edeniBalaenoptera edeni
• 90,000-100,000 90,000-100,000 whales worldwidewhales worldwide
• Gulp feeders
• Rostral Ridges
Sei whale Sei whale Balaenoptera borealisBalaenoptera borealis
• Third largest whaleThird largest whale
• population about population about 80,00080,000
• Gulp feeders and Gulp feeders and skim feedersskim feeders
• Single Rostral ridgeSingle Rostral ridge
Fin whale Fin whale Balaenoptera physalusBalaenoptera physalus
• Second largest Baleen whale
• Ventral Jaw characteristics
• 50,000 -60,000 world wide
• Gulp feeders
Blue whale Blue whale Balaenoptera musculusBalaenoptera musculus
• Largest mammalLargest mammal
• Population 12,000-15,000 world widePopulation 12,000-15,000 world wide
• GestationGestation
Humpback WhaleHumpback Whale
• 80,000 humpback 80,000 humpback whales worldwidewhales worldwide
• Complex whale Complex whale songsong
• Gulp feedersGulp feeders
Family: EschrichtidaeFamily: Eschrichtidae• gray whale (gray whale (Eschrichtius robustusEschrichtius robustus))
• Dorsal HumpDorsal Hump
• Benthic feedersBenthic feeders
• population size of 76,000–118,000 population size of 76,000–118,000 individualsindividuals
Family: NeobalaenidaeFamily: Neobalaenidae
• pygmy right whale (pygmy right whale (Caperea Caperea marginatamarginata))
• Population and feeding habits Population and feeding habits unknownunknown
Sources• Reeves, Randall. Stewart, Brent. Clapham, Phillip.
Powell, James. Guide to Marine Mammals of the world. New York: Knpof, Alfred
• SeaWorld Parks & Entertainment. Baleen Whales. Sea World/Busch Gardens Animals. http://www.swbg-animals.org/. Apr 12, 2011
• Pseudogenization of the tooth gene enamelysin (MMP20) in the common ancestor of extant baleen whales. Aug 31, 2010 Meredith, Robert. Apr 12, 2011. <http://rspb.royalsocietypublishing.org/content/early/2010/09/16/rspb.2010.1280.abstract>