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Taxonomy of Marine Mammals

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Relation http://eprints.cmfri.org.in/15727/
 
Title Taxonomy of Marine Mammals
 
Creator Ratheesh Kumar, R
Rahul, R
Kuberan, G
Chogale, Pradip N
Vivekanandan, E
 
Subject Marine Mammals
Fish Taxonomy
 
Description Marine mammals are warm-blooded aquatic vertebrates belonging to the class Mammalia,
breathe air through lungs, locomotion by fins & flippers and produce milk to nurse their young
ones. They are classified into four different taxonomic groups: cetaceans (whales, dolphins,
and porpoises), sirenians (manatees and dugong), pinnipeds (sea lions, walrus, and seals) and
fissipeds (sea otters and polar bear). They have undergone major adaptations which permit
them to live in water with extreme temperature, depth, pressure, and darkness. The adaptations
are the loss of hind limbs (cetaceans and sirenians), use of limbs for propulsion through water
(pinnipeds), and the general streamlining of the body for hydrodynamic efficiency. Structural
modifications to the sea otters and the polar bear are less apparent in body form and they
continue to closely resemble their terrestrial counterparts. While cetaceans and sirenians spend
their entire lives in the water, other marine mammals come ashore for various reasons, at
particular times in their lives1.
 
Publisher ICAR-Central Marine Fisheries Research Institute
 
Date 2022
 
Type Book Section
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15727/1/Winter%20School%20on%20Recent%20Development%20in%20Taxonomic%20Techniques%20of%20Marine%20Fishes%20for%20Conservation%20and%20Sustainable%20Fisheries%20Management_2022_Ratheesh%20Kumar%20R.pdf
Ratheesh Kumar, R and Rahul, R and Kuberan, G and Chogale, Pradip N and Vivekanandan, E (2022) Taxonomy of Marine Mammals. In: ICAR-CMFRI -Winter School on Recent Development in Taxonomic Techniques of Marine Fishes for Conservation and Sustainable Fisheries Management. ICAR-Central Marine Fisheries Research Institute, Kochi, pp. 499-520.