Porpoise similar to dolphin Family phocoenidae
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Porpoise basic introduction
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Porpoise similar to dolphin Family phocoenidae
- 1. Degonto Islam Department of fisheries and Marine science Noakhali Science and Technology University
- 2. Characteristics Aquatic marine mammals Family phocoenidae Parvorder odontoceti 7 extant species of porpoise Warm blooded animals porpoise
- 3. The harbor porpoise Scientific classification: Kingdom:Animalia Phylum:Chordata Class:Mammalia Order:Artiodactyla Infraorder:Cetacea Superfamily:Delphinoidea Family:Phocoenidae Genera: Phocoena Species: Phocoena phocoena
- 4. Size and shape 1.4 m, 54 kilogram weight (vaquita) 2.3 metres , 220 killograms wight Dall’s porpoise Sexual dimorphism vaquita Dall’s porpoise
- 5. Distribution of porpoise Found near the polar region usullay near the coast
- 6. Evolution Descendants of land living ungulates (50 million years ago) ungulates ungulates
- 7. Evolution During the miocene ( 23 to 5 Mya) mammals were fairly modern, the seldom changed morphologically from that time Diversified from their last common ancestor around 15 Mya
- 8. Adaptation Body shape: Streamlined body and two limbs that are modified into flippers, bulbous head , no external ear flaps ,a non flexible neck, a torpedo shaped body • Swimming : Dall’s porpoise is one of the fastest cetaceans discovered with the ability to travel at 76km/h • Sensor: porpoise use echolocation as their primary sensor system
- 9. Diving: porpoise have a layer of fat or blubber under the skin • Sound production: porpoise produce a variety of clicks
- 10. Blowhole: Brething involves expelling stale air from the blowhole, forming an upward, steamy spout, followed by inhaling fresh air into the lungs Stomach • Porpoise have a two chambered stmach that is similar in the sructure to the terrestrial carnivours, • They have fundic and piloric chambers Adaptation
- 11. Food and feeding habit of porpoise Ulva lactucasquidPorpoise capture fish crustaceans
- 12. Difference between porpoise and dolphin porpoise dolphin Porpoise Dolphin Dolphin Porpoise
- 13. Threat Drive hunting • Hit by the vessel
- 14. • Fishing • Environmental hazards
- 15. Porpoise conservation The vacuata nearly became extinct in the twentieth century with a predicted population of fewer than 100 individuals The harbour porpoise , spectacled porpoise , Burmeister’ s porpoise, Dall’s porpoise are all listed on appendix II of the conservation on the conservation of migratory species of wild animals (CMS) harbour porpoise spectacled porpoise Burmeister’ s porpoise Dall’s porpoise
- 16. conservation The agreement on the conservation of cetaceans in the black sea, Mediterranean sea and contiguius Atlantic area (ACCOBAMS) and the note of the understanding concerning the conservation of the manatee and small cetaceans of western Africa and Macaroneisa The chinese academy of science’s wuhan Institute of hydrobiology has been working with the world wide fund to ensure the future for this subspecies and have placed five porpoise in another well protected area.
- 17. Conservation CIRVA and CITES worked together on The endengered species Act and Marine Mammals protection Act (MMPH)
- 18. Reference 1.https://en.wikipedia.org/wiki/Porpoise 2.https://porpoise.org/library/evolution-taxonomy- antitropical-distributions-porpoises-phocoenidae- mammalia/?fbclid=IwAR3bMt8P-hSom8Bb- ZsPzQzMEg5l3LYTlDI66ql23WtwU-D_lAO0DKDAvAA 3.http://www.newworldencyclopedia.org/entry/Porpoise ?fbclid=IwAR2O2REi4ewRi067hj- ejkeXYPrsDM1QfTpisxMH8A8rzjY6COtLMUpgPQc
- 19. Any question???
- 20. Thank you