Tursiops aduncus   (Ehrenberg,  1832) (Dolphin)
Organism information awaits expert curation
Class: Mammalia

Length: head and body length between 175 and 400 cm, a pectoral fin length of about 23 cm, and a tail fluke expanse of 60 cm

Weight: about 230 kg

Fusiform body, dorsal fin, and beak. The dorsal surface is slate blue or dark gray, with darker flippers and extremities and lighter, often pink-tinted, undersides. Patterning and ventral spotting vary by age and geographic location.

Reproduction: Indo-Pacific bottlenosed dolphins are one of the few mammal species in which males cooperate with other males to allow for easier mating with females. Males form alliances with one to three other , potentially unrelated, males. These male groups herd females for mating, sometimes called “mate guarding.” Single males may also attempt to guard females for mating. Breeding females also form groups. Smaller female groups are easier to defend, whereas larger groups of females are difficult to defend. Male and female dolphins tend to mate with more than one partner. Copulation usually occurs when the dolphins are positioned belly to belly in the same direction. 


Synonym (s)
Delphinus aduncus Ehrenberg, 1832

Common Name (s)
• Indo-Pacific Bottlenose Dolphin (English)
• Southern Bottlenose Dolphin (English)
Economic Importance and Threats
Importance:  Ecosystem balance
(They often act as hosts for parasites and barnacles.)
Importance:  Commercial
(Bottlenosed dolphins are common in marine exhibits and zoos. They can be easily trained to perform agile displays and to play with and locate objects.)

Habitat:  Coastal
IUCN Status:  Data Deficient


• INDIA (Record: 1800-2000)
• Tamil Nadu, Chennai INDIA (Record: 10/2004)
• Tamil Nadu, Chennai Harbour (Lat: 13.08) (Long: 79.76) INDIA (Record: 10/2004)
• Andhra Pradesh, Kakinada Harbour (Lat: 16.85) (Long: 80.16) INDIA (Record: 03/2004)
• Kerala, Vizhinjam INDIA (Record: 05/11/2004)
• Tamil Nadu, Chennai INDIA (Record: 04/10/2004)
• Tamil Nadu, Chennai INDIA (Record: 12/10/2004)

Literature Source(s)
  • Krishnana, AA; Yousufa, KS; Kumarana, PL; Harisha, N; Anoopa, B; Afsala, VV; Rajagopalana, M; Vivekanandana, E; Krishnakumar, PK and Jayasankara, P (2007) Stomach contents of cetaceans incidentally caught along Mangalore and Chennai coasts of India Estuarine, Coastal and Shelf Science Elsevier B.V. 76(4) 909-913 Available at - http://dx.doi.org/10.1016/j.ecss.2007.08.004
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • save your logo Available at - http://www.saveyourlogo.org/en
  • Yousuf, KSSM; Anoop, AK; Anoop, B; Afsal, VV; Vivekanandan, E; Kumarran, RP; Rajagopalan, M; Krishnakumar, PK and Jayasankar, P (2009) Observations on incidental catch of cetaceans in three landing centres along the Indian coast Marine Biodiversity Records Cambridge University Press 4 1-5 Available at - http://dx.doi.org/10.1017/S175526720900075X
  • Jayasankar, P; Anoop, B; Rajgopalan, M; Yousuf, KMM; Reynold, P; Krishnakumar, PK; Afsal, VV and Krishnan, AA (2009) Indian Efforts on the Inventorization of Marine Mammal Species for their Conservation and Management Asian Fisheries Science Asian Fisheries Society, Manila, Philippines 22 143-155 Available at - http://eprints.cmfri.org.in/5695/2/AFS_Mar_%2822%292009%5B1%5D.pdf
  • Kumaran, PL (2002) Marine mammal research in India: A review and critique of the methods Current Science Indian Academy of Sciences, Bangalore 83(10) 1210-1220 Available at - www.ias.ac.in/currsci/nov252002/1210.pdf
  • Myers, P; Espinosa, R; Parr, CS; Jones, T; Hammond, GS and Dewey, TA (2006) Animal diversity web Available at - http://animaldiversity.org.

Page last updated on:2013-03-01

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