List of cetaceans by population

This is a list of Cetacea species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.

This list is not comprehensive, as not all cetaceans have had their numbers quantified.

Common name Binomial name Population Status Trend Notes Image
North Atlantic right whale Eubalaena glacialis 300 – 350[1] EN[1] Increase[1] Estimates are for the Northwest Atlantic population only; the existence of a separate Northeast population is debated.[1]
North Pacific right whale Eubalaena japonica 500[2] EN[2] Unknown[2] Rough estimate; quality of population data is greatly increasing.[2]
Vaquita Phocoena sinus 177 - 1073[3] CR[3] Decrease[3] 95% confidence interval.[3]
South Asian river dolphin Platanista gangetica 843 – 1171[4] EN[4] Unknown[4]
Southern right whale Eubalaena australis 7500[5] LC[5] Increase[5] Estimates are from 1997; numbers may have increased.[5]
Bowhead whale Balaena mysticetus 10 000[6] LC[6] Increase[6] Minimum estimate.[6]
Blue whale Balaenoptera musculus 10 000 – 25 000[7][8][9] EN[7] Increase[7] 3-11% of the population in 1911.[7] Before whaling, the largest population was in the Antarctic, numbering approximately 239,000 (range 202,000 to 311,000).[10]
Gray whale Eschrichtius robustus 15 000 – 22 000[11] LC[11] Steady[11] Numbers are for the eastern population; the western numbers ~100.[11]
Melon-headed whale Peponocephala electra 50 000[12] LC[12] Unknown[12] Minimum estimate.[12]
Killer whale Orcinus orca 50 000[13][14] DD[13] Unknown[13] Minimum estimate.[6] Local estimates include roughly 25,000 in the Antarctic, 8,500 in the tropical Pacific, 2,250–2,700 off the cooler northeast Pacific and 500–1,500 off Norway.[15] Japan's Fisheries Agency estimated 2,321 killer whales were in the seas around Japan.[16][17]
Humpback whale Megaptera novaeangliae 60 000[18] LC[18] Increase[18] Minimum estimate.[18]
Narwhal Monodon monoceros 80 000[19]NT[19] Unknown[19] Minimum estimate.[19]
Cuvier's beaked whale Ziphius cavirostris 100 000[20] LC[20] Unknown[20] Minimum estimate; may be much higher.[20]
Rough-toothed dolphin Steno bredanensis 150 000[21]LC[21] Unknown[21]
Beluga whale Delphinapterus leucas 200 000[22] NT[22] Unknown[22] Minimum estimate.[22]
Common bottlenose dolphin Tursiops truncatus 600 000[23] LC[23] Unknown[23] Minimum estimate.[23]
Harbour porpoise Phocoena phocoena 700 000[24] LC[24] Unknown[24] Minimum estimate.[24]
Dall's porpoise Phocoenoides dalli 1 200 000[25]LC[25] Unknown[25] Minimum estimate.[25]
Striped dolphin Stenella coeruleoalba 2 000 000[26]LC[26] Unknown[26] Minimum estimate.[26]
Pantropical spotted dolphin Stenella attenuata 2 500 000[27]LC[27] Unknown[27] Minimum estimate.[4]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G., Urbán, J. & Zerbini, A.N. (2012). "Eubalaena glacialis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  2. ↑ 2.0 2.1 2.2 2.3 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N. (2008). "Eubalaena japonica". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  3. ↑ 3.0 3.1 3.2 3.3 Rojas-Bracho, L., Reeves, R.R., Jaramillo-Legorreta, A. & Taylor, B.L. (2008). "Phocoena sinus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  4. ↑ 4.0 4.1 4.2 4.3 Smith, B.D. & Braulik, G.T. (2012). "Platanista gangetica". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  5. ↑ 5.0 5.1 5.2 5.3 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N. (2012). "Eubalaena australis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  6. ↑ 6.0 6.1 6.2 6.3 6.4 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G., Urbán, J. & Zerbini, A.N. (2012). "Balaena mysticetus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  7. ↑ 7.0 7.1 7.2 7.3 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N. (2008). "Balaenoptera musculus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  8. ↑ "Assessment and Update Status Report on the Blue Whale Balaenoptera musculus" (PDF). Committee on the Status of Endangered Wildlife in Canada. 2002. Retrieved 2007-04-19.
  9. ↑ Alex Kirby (19 June 2003). "Science seeks clues to pygmy whale". BBC News. Retrieved 21 April 2006.
  10. ↑ T.A. Branch, K. Matsuoka and T. Miyashita (2004). "Evidence for increases in Antarctic blue whales based on Bayesian modelling". Marine Mammal Science 20: 726–754. doi:10.1111/j.1748-7692.2004.tb01190.x.
  11. ↑ 11.0 11.1 11.2 11.3 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N. (2012). "Eschrichtius robustus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  12. ↑ 12.0 12.1 12.2 12.3 Taylor, B.L., Baird, R., Barlow, J., Dawson, S.M., Ford, J., Mead, J.G., Notarbartolo di Sciara, G., Wade, P. & Pitman, R.L. (2008). "Peponocephala electra". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  13. ↑ 13.0 13.1 13.2 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G., Urbán, J. & Zerbini, A.N. (2012). "Balaena mysticetus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  14. ↑ Killer Whale (Orcinus orca) NOAA Fisheries, Office of Protected Resources. Retrieved 2010-03-14
  15. ↑ NMFS 2005, p. 46
  16. ↑ Ecology of Japanese Coastal Orcas, sha-chi.jp. Retrieved 2010-02-17
  17. ↑ Ten Years after Taiji Orca Capture, 28 January 2007. Iruka (dolphin) and Kujira (whale) Action Network (IKAN): Iruma, Saitama Prefecture, Japan. Retrieved 2010-02-17
  18. ↑ 18.0 18.1 18.2 18.3 Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N. (2008). "Megaptera novaeangliae". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  19. ↑ 19.0 19.1 19.2 19.3 Jefferson, T.A., Karkzmarski, L., Laidre, K., O’Corry-Crowe, G., Reeves, R., Rojas-Bracho, L., Secchi, E., Slooten, E., Smith, B.D., Wang, J.Y. & Zhou, K. (2012). "Monodon monoceros". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  20. ↑ 20.0 20.1 20.2 20.3 Taylor, B.L., Baird, R., Barlow, J., Dawson, S.M., Ford, J., Mead, J.G., Notarbartolo di Sciara, G., Wade, P. & Pitman, R.L. (2012). "Ziphius cavirostris". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  21. ↑ 21.0 21.1 21.2 Hammond, P.S., Bearzi, G., Bjørge, A., Forney, K.A., Karkzmarski, L., Kasuya, T., Perrin, W.F., Scott, M.D., Wang, J.Y. , Wells, R.S. & Wilson, B. (2012). "Steno bredanensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  22. ↑ 22.0 22.1 22.2 22.3 Jefferson, T.A., Karkzmarski, L., Laidre, K., O’Corry-Crowe, G., Reeves, R., Rojas-Bracho, L., Secchi, E., Slooten, E., Smith, B.D., Wang, J.Y. & Zhou, K. (2012). "Delphinapterus leucas". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  23. ↑ 23.0 23.1 23.2 23.3 Lichtenstein, G., Baldi, R., Villalba, L., Hoces, D., Baigún, R. & Laker, J. (2012). "Tursiops truncatus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  24. ↑ 24.0 24.1 24.2 24.3 Hammond, P.S., Bearzi, G., Bjørge, A., Forney, K., Karczmarski, L., Kasuya, T., Perrin, W.F., Scott, M.D., Wang, J.Y., Wells, R.S. & Wilson, B. (2008). "Phocoena phocoena". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  25. ↑ 25.0 25.1 25.2 25.3 Hammond, P.S., Bearzi, G., Bjørge, A., Forney, K.A., Karkzmarski, L., Kasuya, T., Perrin, W.F., Scott, M.D., Wang, J.Y. , Wells, R.S. & Wilson, B. (2012). "Phocoenoides dalli". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  26. ↑ 26.0 26.1 26.2 26.3 Hammond, P.S., Bearzi, G., Bjørge, A., Forney, K., Karczmarski, L., Kasuya, T., Perrin, W.F., Scott, M.D., Wang, J.Y., Wells, R.S. & Wilson, B. (2008). "Stenella coeruleoalba". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.
  27. ↑ 27.0 27.1 27.2 Hammond, P.S., Bearzi, G., Bjørge, A., Forney, K.A., Karkzmarski, L., Kasuya, T., Perrin, W.F., Scott, M.D., Wang, J.Y. , Wells, R.S. & Wilson, B. (2012). "Stenella attenuata". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-11-11.