DOI QR코드

DOI QR Code

Estimation of mortality coefficients and survivorship curves for minke whales (Balaenoptera acutorostrata) in Korean waters

  • Zhang, Chang-Ik (Division of Marine Production System Management, Pukyong National University) ;
  • Song, Kyung-Jun (University-Research Institute Interdisciplinary Program of Fisheries and Oceanography, Pukyong National University) ;
  • Na, Jong-Hun (Division of Marine Production System Management, Pukyong National University)
  • Received : 2010.04.22
  • Accepted : 2010.07.27
  • Published : 2010.12.31

Abstract

Population ecological characteristics of growth and mortality play an important role in understanding the population dynamics of marine mammals. The instantaneous coefficients of natural and bycatch mortality were estimated for minke whales (Balaenoptera acutorostrata) in Korean waters using a population assessment model composed of bycatch and abundance data. The survivorship curve of this population was fitted to the data, and then the curve was revised using age-specific relative bycatchability coefficients ($q_t$). Instantaneous coefficients of natural and bycatch mortality of minke whales were estimated as 0.024/year and 0.076/year, respectively, and from this the survival rate was estimated as 0.905. This estimated survival rate was comparable to other cetaceans in other regions. The $q_t$ for this population ranged from 0.020 to 0.193. The revised survival rates were higher when the $q_t$ was taken into account. The mortality coefficient, survival rate, $q_t$ and survivorship curves had not previously been determined for minke whale in this area. This estimate could serve as fundamental information to assess the status of this population and for conservation and rational management.

Keywords

References

  1. An YR, Kim ZG, Choi SG, Park KJ. 2009. Abundance estimation of common minke whales in the Yellow Sea and the East Sea using the Korean sighting data from 2000 to 2008 with g(0)=1. Paper SC/61/NPM2 presented to the IWC Scientific Committee, May 2009, Madeira, Portugal. 4 pp.
  2. Baker CS, Lento GM, Cipriano F, Palumbi SR. 2000. Predicted decline of protected whales based on molecular genetic monitoring of Japanese and Korean markets. Proc R Soc Lond B. 767:1191-1199.
  3. Barlow J, Boveng P. 1991. Modelling age-specific mortality for marine mammal populations. Mar Mamm Sci. 7(1):50-65. https://doi.org/10.1111/j.1748-7692.1991.tb00550.x
  4. Barlow J, Clapham PJ. 1997. A new birth-interval approach to estimating demographic parameters of humpback whales. Ecol. 78:535-546. https://doi.org/10.1890/0012-9658(1997)078[0535:ANBIAT]2.0.CO;2
  5. Buckland ST. 1990. Estimation of survival rates from sightings of individually identifiable whales. Rep Int Whaling Comm (special issue). 12:155-160.
  6. Calambokidis J, Barlow J. 2004. Abundance of blue and humpback whales in the eastern north Pacific estimated by capture-recapture and line-transect methods. Mar Mamm Sci. 20(1):63-85. https://doi.org/10.1111/j.1748-7692.2004.tb01141.x
  7. Caughley G. 1966. Mortality patterns in mammals. Ecol. 47:906-918. https://doi.org/10.2307/1935638
  8. Chapman DG. 1983. Some considerations on the status of stocks of southern hemisphere minke whales. Rep Int Whaling Comm. 33:311.
  9. Choi YM, Zhang CI, Kim YS, BAIK CI, Park YC. 2004. Ecological characteristics and biomass of chub mackerel, Scomber japonicus Houttuyn in Korean waters. J Kor Soc Fish Res. 6(2):79-89 [in Korean].
  10. Evans K, Hindell MA. 2004. The age structure and growth of female sperm whales (Physeter macrocephalus) in southern Australian waters. J Zool Lond. 263:237-250. https://doi.org/10.1017/S0952836904005096
  11. Fujiwara M, Caswell H. 2001. Demography of the endangered North Atlantic right whale. Nature. 414:537-541. https://doi.org/10.1038/35107054
  12. Gabriele CM, Straley JM, Mizroch SA, Baker CS, Craig AS, Herman LM, Glockner-Ferrari D, Ferrari MJ, Cerchio S, Ziegesar O, et al. 2001. Estimating the mortality rate of humpback whale calves in the central North Pacific Ocean. Can J Zool. 79:589-600. https://doi.org/10.1139/z01-014
  13. Gaillard JM, Festa-Bianchet M, Yoccoz NG. 1998. Population dynamics of large herbivores: Variable recruitment with constant adult survival. Trends in Ecol Evol. 13:58-63. https://doi.org/10.1016/S0169-5347(97)01237-8
  14. Gong Y. 1988. Distribution and abundance of the Sea of Japan-Yellow Sea-East China Sea stock of minke whales. Bull Nat Fish Res Dev Agen. 41:35-54 [in Korean].
  15. Haase PA, Schneide K. 2001. Birth demographics of bottlenose dolphins, Tursiops truncatus, in Doubtful Sound, Fiordland, New Zealand*preliminary findings. New Zealand J of Mar Freshwater Res. 35:675-680. https://doi.org/10.1080/00288330.2001.9517034
  16. Hatanaka H, Miyashita T. 1997. On the feeding migration of the Okhotsk Sea-West Pacific stock of minke whales, estimates based on length composition data. Rep Int Whaling Comm. 47:557-567.
  17. Hersh SL, Odell DK, Asper ED. 1990. Bottlenose dolphin mortality patterns in the Indian/Banana River system of Florida. In: Leatherwood S, Reeves RR, editors. The bottlenose dolphin. London: Academic Press. p. 155-164.
  18. Herzing DL. 1997. The life history of free-ranging Atlantic spotted dolphins (Stenella frontalis): age classes, color phases, and female reproduction. Mar Mamm Sci. 13:576-595. https://doi.org/10.1111/j.1748-7692.1997.tb00085.x
  19. Horwood J. 1990. Biology and exploitation of the minke whale. Baton Rouge (FL): CRC Press. 238 pp.
  20. International Whaling Commission. 1983. Report of the Sub-Committee on minke whales. Rep Int Whaling Comm. 33:91-122.
  21. International Whaling Commission. 1984. Report of the Scientific Committee, Annex E2. Report of the subcommittee on Northern Hemisphere minke whales. Rep Int Whaling Comm. 34:102-111.
  22. Jefferson JA, Leatherwood S, Webber MA. 1993. FAO species identification guide. Marine mammals of the world. Rome: FAO. 320 pp.
  23. Kim YH. 2008. A study on the characteristics of minke whale (Balaenoptera acutorostrata) bycatch in Korean waters [MS thesis]. Busan, Korea: Pukyong National University. 52 pp [in Korean].
  24. Kim ZG. 1999. Bycatches of minke whales in Korean waters. J Cetacean Res Manage. 1 (Suppl):98-100.
  25. Kim ZG, An YR, Sohn H, Baik CI. 2004. Characteristics of minke whale (Balaenoptera acutorostrata) by-catch in Korean waters. J Korean Fish Soc. 6(2):173-182 [in Korean].
  26. Kogi K, Hishii T, Imamura A, Iwatani T, Dudzinski KM. 2004. Demographic parameters of Indo-Pacific bottlenose dolphins (Tursiops aduncus) around Mikura Island, Japan. Mar Mamm Sci. 20(3):510-526. https://doi.org/10.1111/j.1748-7692.2004.tb01176.x
  27. Krahn MM, Wade PR, Kalinowski ST, Dahlheim ME, Taylor BL, Hanson MB, Ylitalo GM, Angliss RP, Stein JE, Waples RS. 2002. Status review of Southern Resident killer whales (Orcinus orca) under the Endangered Species Act. U.S. Dept. Commer., NOAA Tech. Memo. NMFSNWFSC-54. 133 pp.
  28. Mann J, Connor RC, Barre LM, Heithaus MR. 2000. Female reproductive success in bottlenose dolphins (Tursiops sp.): life history, habitat, provisioning and group-size effects. Beh Ecol. 11:210-219. https://doi.org/10.1093/beheco/11.2.210
  29. Na JH. 2005. Age and growth of minke whale, Balaenoptera acutorostrata, in Korean waters [M.S. thesis]. Busan, Korea: Pukyong National University. 52 pp [in Korean].
  30. Ohsumi S. 1979. Population assessment of the Antarctic minke whale. Rep Int Whaling Comm. 29:407.
  31. Olesiuk PF, BIGG MA, Ellis GM. 1990. Life history and population dynamics of resident killer whales (Orcinus orca) in the coastal waters of British Columbia and Washington state. In: Hammond PS, Mizroch SA, Donovan GP, editors. Individual recognition of cetaceans: use of photo-identification and other techniques to estimate population parameters. Cambridge: International Whaling Commission. p. 209-243.
  32. Park JY, Sohn H, Kim ZG, Kim WJ, Park DW, An YR. 2004. Genetic diversity of by-caught minke whales in Korea based on mitochondrial DNA control regions. J Korean Soc Fish Res. 6(2):163-172 [in Korean].
  33. Park KJ. 2006. Population ecological characteristic and stock assessment of finless purpoise, Neophocaena phocaenoides, in the western sea of Korea [Ph.D. dissertation]. Busan, Korea: Pukyong National University. 174pp [in Korean].
  34. Park KJ, An YR, Kim ZG, Choi SG, Moon DY, Park JE. 2009. Abundance estimates of the minke whale, Balaenoptera acutorostrata, in the East Sea, Korea. Korean J Fish Aqua Sci. 42(6):642-649. [in Korean] https://doi.org/10.5657/kfas.2009.42.6.642
  35. Sohn H, Kim ZG, Miyashita T. 2001. Abundance estimate of minke whale, Balaenoptera acutorostrata, by sighting survey in the Yellow Sea, spring 2001. J Korean Soc Fish Res. 4:51-63 [in Korean].
  36. Song KJ, Kim ZG, Zhang CI, Kim YH. 2010. Fishing gears involved in entanglements of minke whales (Balaenoptera acutorostrata) in the East Sea of Korea. Mar Mamm Sci. 26(2):282-295. https://doi.org/10.1111/j.1748-7692.2009.00340.x
  37. Spinage CA. 1972. African ungulate life tables. Ecology. 53:645-652. https://doi.org/10.2307/1934778
  38. Stolen MK, Barlow J. 2003. A model life table for bottlenose dolphins (Tursiops truncatus) from the Indian river lagoon system. Mar Mamm Sci. 19(4):630-649. https://doi.org/10.1111/j.1748-7692.2003.tb01121.x
  39. Trites AW, Pauly D. 1998. Estimating mean body masses of marine mammals from maximum body lengths. Can J Zool. 76(5):886-896. https://doi.org/10.1139/z97-252
  40. Verborgh P. 2005. Population estimation and survival rate of long-finned pilot whales (Globicephala melas) in the Strait of Gibraltar [MS thesis]. University of Wales. 70 pp.
  41. Wada S. 1989. Latitudinal segregation of the Okhotsk Sea-West Pacific stock of minke whales. Rep Int Whaling Comm. 39:229-233.
  42. Wang P. 1985. Studies on the breeding habits of the minke whale (Balaenoptera acutorostrata) in the Yellow Sea. Chin J Oceanol Limnol. 3:37. https://doi.org/10.1007/BF02852901
  43. Wells RS, Scott MD. 1990. Estimating bottlenose dolphin population parameters from individual identification and capture-release techniques. Rep Int Whaling Comm (special issue) 12:407-415.
  44. Zhang CI, Megrey BA. 2006. A revised Alverson and Carney model for estimating the instantaneous rate of natural mortality. Trans Am Fish Soc. 135(3):620-633. https://doi.org/10.1577/T04-173.1

Cited by

  1. Collisions between Whales and Fast Ferries around Korean Waters vol.2013, pp.None, 2013, https://doi.org/10.1155/2013/309751
  2. Stomach contents of bycaught minke whales (Balaenoptera acutorostrata) in Korean waters vol.10, pp.4, 2010, https://doi.org/10.1080/17451000.2013.814787
  3. Ecological Role of Common Minke Whales in the Southwestern East Sea (Sea of Japan) Ecosystem during the Postcommercial Whaling Moratorium Period vol.68, pp.2, 2010, https://doi.org/10.2984/68.2.2
  4. Status of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) around Jeju Island, Korea vol.68, pp.4, 2010, https://doi.org/10.2984/68.4.9