The Korean Journal of Malacology (한국패류학회지)

The Malacological Society of Korea (한국패류학회)
권호 표지

The Diversity and Ecology of Mollusks in Seogundo off The Southern Jeju Island, Republic of Korea

  • Noseworthy, Ronald G. (Shellfish Aquaculture and Research Laboratory, Faculty of Marine Biomedical Science, Jeju National University) ;
  • Choi, Kwang-Sik (Faculty of Marine Biomedical Science, Jeju National University)
  • Received : 2009.11.05
  • Accepted : 2010.02.01
  • Published : 2010.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Seogundo is a small island adjacent to the southern coast of Jeju Island and connected to it by a boulder beach at low tide Surveys of this area were conducted from 2001 to 2009 to enumerate the mollusks there and also to examine their diversity, relative abundance, and ecological relationships. Both the boulder beach itself and several large tide pools were studied, including the coarse sand substrate and several species of seaweed and coralline algae found in the tide pools. Of the 121 species obtained or observed, there were 97 gastropods, 16 bivalves, and 8 polyplacophorans. Live specimens were obtained for about half of those species. About one third were found on rocky substrate, with the most common species being Nodilittorina radiata and Nerita japonica in the upper intertidal zone, N. radiata and Littorina brevicula in the middle intertidal, and Turbo (Lunella) coronata coreensis and Acanthopleura japonica in the lower intertidal and shallow subtidal. The seaweeds and coralline algae contained about 40% of all mollusk species. The most common mollusks in two species of brown seaweed were Ittibittum parcum, Musculus nanus, and Euplica scripta. In a species of red seaweed, Komaitrochus pulcher was the most frequent, as in the coralline algae, along with M. nanus. The coarse sand in the tidepools contained about 25% of the species, with the Cerithiidae having the largest number. A sample of beach drift contained 17 species, with Bittium aleutaceum and Rissoina (Phosinella) pura being most common. Most species, about 60%, were found in a variety of habitats, especially the marine flora; few species exhibited any habitat preferences. Biographically, Jeju Island is part of the Warm Temperate Northwest Pacific Province and the East China Sea ecoregion with a strong faunal affinity with southern Japan, eastern China, and northeastern Taiwan. Zonal-geographical groupings reveal that the fauna is mainly subtropical-low boreal, preferring moderately warm water, with a somewhat smaller number of tropical-subtropical species.

Keywords

References

  1. SCUBA in Korea: Tide Tables for South Korea (1999) Available from WWW:
  2. Beechey, D. (2009) The Seashells of New South Wales. Release 14. http://seashellsofnsw.org.au
  3. Chi, Z.Y. (1989) Mollusca of Huanghai and Bohai. pp. 309. Nong Ye Publishing Co. Beijing, China.
  4. Higo, S., Callomon, P., and Goto, Y. (1999) Catalogue and Bibliography of the Marine Shell-bearing. pp. 749. Elle Scientific Publications. Osaka Japan.
  5. Houart, R. (1996) Results of the Rumphius Biohistorical Expedition to Ambon (1990) Part 5. Mollusca, Gastropoda, Muricidae. Zool. Med. Leiden, 70:377-397.
  6. Kang, J.W. (1968) Illustrated encyclopedia of fauna &flora of Korea, Vol. 8.marine algae. Ministry of Education. pp. 465, Seoul.
  7. Lee, J.J. (1990) Bioecological Study of the Northern Coastal Area in Cheju Island-Distribution and Community Structure of Benthic Molluscan Shells. Korean Journal of Malacology, 6:33-44.
  8. Lee, J.J. (1991) Bioecological Studies of the Southern Coastal Area in Cheju Island-Distribution and Community Structure of the Benthic Macroinvertebrates in Gapa and Mara Islets. Korean Journal of Malacology, 7:49-57.
  9. Lee, J.J., and Hyun, J.M. (1991) Bioecological Studies of the Southern Coastal Area in Cheju Island - 2. Distribution and Community Structure of the Benthic Molluscan Shells in Around Coast of Sogwipo. Korean Journal of Malacology, 7:58-65.
  10. Lee, J.J., and Hyun, J.M. (1992) Bioecological Study of the Eastern Coastal Area in Cheju Island - Seasonal Changes of Macroinvertebrate Community on the Intertidal Rocky Shores. Korean Journal of Malacology, 8:1-20.
  11. Lee, J.J., and Hyun, J.M. (1997) Spatial Species Diversity of Benthic Macroinvertebrates on the Intertidal Zone of Chujado, Cheju Islands. Korean Journal of Malacology, 13:71-90.
  12. Lee, J.J., and Hyun, J.M. (2002) Species Diversity and Community Structure of Macrobenthic Invertebrates inhabiting the intertidal zone near Songacksan Area, Jeju Island. Korean Journal of Malacology, 18:41-52.
  13. Lee, J.J., Hyun, J.M., and Kim, J.C. (1995) Bioecological Study of the Upwelling Area Around Cheju Island - Community Structure of the Benthic Macroinvertebrates at the Rocky Intertidal Zone of Chagwi-do, Cheju Island. Korean Journal of Malacology, 11:1-20.
  14. Lee, J.J., and Jwa, Y.W. (1988) Ecological study on the intertidal zone around Cheju Island - 1. Estimation of plankton production and community structure of marine shells - Community structure of molluscan shells. Korean Journal of Malacology, 4:17-29.
  15. Lee, J.J., Kang, K.C., and Kim, J.C. (2001) Spatial Species Diversity of Macrobenthos in the Intertidal Zone of Hwasoon, Jeju Island. Korean Journal of Malacology, 17:63-70.
  16. Lee, J.J., and Kim, J.C. (1993) Bioecological Study of the Western Coastal area in Cheju Island - Distribution and Seasonal Community Changes of the Benthic Macroinvertebrates on the Rocky Intertidal Zone of Biyangdo. Korean Journal of Malacology, 9:68-84.
  17. Lee, J.J., Zhang, C.I., and Cho, U.S. (1989) Community Structure of the Ecosystem on the Intertidal Zone and Grass Land in Cheju Island - Distribution and Community Structure of Benthic Macroinvertebrates. Korean Journal of Malacology, 5:10-28.
  18. Lee, S.C., and Chao, S.M. (2003) Shallow Water Marine Shells from Northeastern Taiwan. Collection and Research, 16:29-59.
  19. Lutaenko, K.A., Je, J.G., and Shin, S.H. (2002) Report On Bivalve Mollusks From Beach Death Assemblages In Gangwan And Gyeongsangbuk Provinces, Korea (East Sea). Korean Journal of Malacology, 18:27-40.
  20. Lutaenko, K.A., Je., J.G., and Shin, S.H. (2006) Bivalve Mollusks in Yeongil Bay, Korea. 2. Faunal Analysis. Korean Journal of Malacology, 22:63-86.
  21. Maps, G. (2010) http://maps.google.com
  22. Min, D.K., Lee, J.S., Koh, D.B., and Je, J.G. (2004) Mollusks in Korea. pp. 566. Min Molluscan Research Institute. Seoul, Korea.
  23. Noseworthy, R.G., Koh, D.B., Kang, D.H., and Choi, K.S. (2002) Mollusks of the Songsan Ilchulbong Area in Jejudo, Korea. Under water Science and Technology, 3:111-124.
  24. Noseworthy, R.G., Lim, N.R., and Choi, K.S. (2007) A Catalogue of the Mollusks of Jeju Island, South Korea. Korean Journal of Malacology, 23:65-104.
  25. O'Hara, T. (2000) Habitats As Surrogates For Faunal And Floral Assemblages Associated With Rocky Reefs Along The Victorian Coast. 40 pp. in Ferns, L.W. and Hough, D. (Editors). Environmental Inventory of Victoria's Marine Ecosystems Stage 3 (2nd Edition) - Understanding biodiversity representativeness of Victoria's rocky reefs. Parks, Flora and Fauna Division, Department of Natural Resources and Environment, East Melbourne, Australia. xii + 196 pp. Available from WWW:
  26. Okutani, T. (2000) Marine Mollusks in Japan. pp. 1224. Tokai University Press. Tokyo, Japan.
  27. Rudman, W.B. (2004) Sea Slug Forum. Australian Museum. Available from WWW:
  28. S, P., and G, J.J. (2005) Korea. Pp. 183-190 in Status of Coral Reefs in East Asian Seas Region: 2004. Global Coral Reef Monitoring Network, Japan. 197 pp. Available from WWW:
  29. Spalding, M.D., FOX, H.E., ALLEN, G.R., DAVIDSON, N., FERDANA, Z.A., FINLAYSON, M., HALPERN, B.S., JORGE, M.A., LOMBANA, A., LOURIE, S.A., MARTIN, K.D., MCMANUS, E., MOLNAR, J., RECCHIA, C.A., and ROBERTSON, J. (2007) Marine Ecoregions of the World: A Bioregionalization of Coastal and Shelf Areas. BioScience, 57:573-583. https://doi.org/10.1641/B570707
  30. Wells, F.E., Chalermwat, K., Chitramvong, Y., Kakhai, N., Putchakarn, S., and Sanpanitch, K. (2008) Assessment of Three Techniques For Measuring the Biodiversity of Mollusks on Rocky Intertidal Shores in Eastern Thailand. The Raffles Bulletin of Zoology :Supplement, 18:259-264.