Environmental Biology of Fishes

, Volume 86, Issue 4, pp 451–456 | Cite as

Offshore Dolly Varden charr (Salvelinus malma) in the North Pacific

  • Kentaro Morita
  • Shoko H. Morita
  • Masa-aki Fukuwaka
  • Toru Nagasawa


Many studies have investigated the ecology of charrs in freshwater, however, little is known about charrs in the ocean. This study examined the distribution, seasonal abundance, and some biological features of Dolly Varden (Salvelinus malma) in the Pacific Ocean. An analysis of by-catch data of Japanese offshore salmon monitoring showed that Dolly Varden were distributed across a wide range in the offshore waters of the Pacific Ocean, including the Japan Sea, Bering Sea, and Okhotsk Sea. The catch per unit effort showed a sharp increase from May to August, followed by a sharp decrease in September. Offshore areas served as an important summer habitat for anadromous Dolly Varden.


Offshore Anadromous Dolly Varden Pacific salmon Marine 



This research was supported by the Promotion Program for International Resources Surveys of the Fisheries Agency of Japan and a Grant-in-Aid for Young Scientists B (no.19780155) from Japan Society for the Promotion of Science.


  1. Armstrong RH, Morrow JE (1980) The dolly varden charr, Salvelinus malma. In: Balon EK (ed) Charrs, salmonid fishes of the genus Salvelinus (pp 99–140). Dr W Junk bv Publishers, The HagueGoogle Scholar
  2. Azumaya T, Ishida Y (2000) Density interactions between pink salmon (Oncorhynchus gorbuscha) and chum salmon (O. keta) and their possible effects on distribution and growth in the North Pacific Ocean and Bering Sea. N Pac Anadr Fish Comm Bull 2:165–174Google Scholar
  3. Azumaya T, Nagasawa T, Temnykh OS, Khen GV (2007) Regional and seasonal differences in temperature and salinity limitations of Pacific salmon (Oncorhynchus spp.). N Pac Anadr Fish Comm Bull 4:179–187Google Scholar
  4. DeCicco AL (1992) Long-distance movements of anadromous Dolly Varden between Alaska and the U.S.S.R. Arctic 45:120–123Google Scholar
  5. Dunham J, Baxter C, Fausch K, Fredenberg W, Kitano S, Koizumi I, Morita K, Nakamura T, Rieman B, Savvaitova K, Stanford J, Taylor E, Yamamoto S (2008) Evolution, ecology, and conservation of Dolly Varden, white-spotted char, and bull trout. Fisheries 33:537–550CrossRefGoogle Scholar
  6. Fechhelm RG, Bryan JD, Griffiths WB, Martin LR (1997) Summer growth patterns of northern Dolly Varden (Salvelinus malma) smolts from Prudhoe Bay region of Alaska. Can J Fish Aquat Sci 54:1103–1110CrossRefGoogle Scholar
  7. Ishida Y, Ogura M (1992) Review of high-seas salmon research by National Research Institute of Far Seas Fisheres. In: Ishida Y, Nagasawa K, Welch DW, Myers KW (eds) Proceedings of the International Workshop on Future Salmon Research in the North Pacific Ocean. National Research Institute of Far Seas Fisheries, Shimizu, pp 23–30Google Scholar
  8. Johnson L (1980) The arctic charr, Salvelinus alpinus. In: Balon EK (ed) Charrs, salmonid fishes of the genus Salvelinus. Dr W Junk bv Publishers, The Hague, pp 15–98Google Scholar
  9. Jonsson N, Jonsson B, Hansen LP (1990) Partial segregation in the timing of migration of Atlantic salmon of different ages. Anim Behav 40:313–321CrossRefGoogle Scholar
  10. Larkins HA (1964) Some epipelagic fishes of the North Pacific Ocean, Bering Sea, and Gulf of Alaska. Trans Am Fish Soc 93:286–290CrossRefGoogle Scholar
  11. Machidori S (1986) Distribution of fishes caught incidentally in the salmon gillnet in the Subarctic Region of the North Pacific Ocean II Fishes of Clupeiformes, Salmoniformes and Myctophiformes. Salmon Report Series 31:24–37 in JapaneseGoogle Scholar
  12. Machidori S, Ogura M (1986) Relation between salmon distribution and water temperature in the waters south of 50 degree north and the west of longitude 180 degree in the North Pacific Ocean. Salmon Report Series 31:66–82 (in Japanese)Google Scholar
  13. Mishima S (1975) A biological study of the anadromous Dolly Varden Salvelinus malma (Walbaum) distributed in the west coast off the Kamchatka in summer season, 1972–1974. Bull Fac Fish Hokkaido Univ 26:154–168 (in Japanese with English abstract)Google Scholar
  14. Morita K, Arai T, Kishi D, Tsuboi J (2005) Small anadromous Salvelinus malma at the southern limits of its distribution. J Fish Biol 66:1187–1192CrossRefGoogle Scholar
  15. Nakano S, Kitano F, Maekawa K (1996) Potential fragmentation and loss of thermal habitats for charrs in the Japanese archipelago due to climatic warming. Freshw Biol 36:711–722CrossRefGoogle Scholar
  16. Noakes DLG (2008) 2006 International Charr Symposium, Reykjavik, Iceland. Environ Biol Fishes 83:1–5CrossRefGoogle Scholar
  17. Power G (1980) The brook charr, Salvelinus fontinalis. In: Balon EK (ed) Charrs, salmonid fishes of the genus Salvelinus. Dr W Junk bv Publishers, The Hague, pp 141–203Google Scholar
  18. Takagi K (1975) A non-selective salmon gillnet for research operations. Inter N Pac Fish Comm Bull 32:13–41Google Scholar
  19. Takami T, Murakami Y, Mori M (1996) Growth and feeding habits of anadromous white-spotted charr (Salvelinus leucomaenis) in southwestern Hokkaido, Japan. Sci Rep Hokkaido Fish Hatchery 50:37–44Google Scholar
  20. Volkov AF, Chuchukalo VI, Radchenko VI, AYa E, Kuznetsova NA (1996) Summer feeding habits of the Dolly Varden in the Bering Sea. Oceanology 35:827–832Google Scholar
  21. Zolotukhin SF, Augerot X, Shishayev AV, Yakimenko LI, Kvasheva YV, Skopetz MB, Proskurin AA, Voidilov VB (2002) Sakhalin taimen in the Koppi River Basin: population status and perspectives on sustainable use. TINRO Wild Salmon Center Joint Report, KhabarovskGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Kentaro Morita
    • 1
  • Shoko H. Morita
    • 1
  • Masa-aki Fukuwaka
    • 1
  • Toru Nagasawa
    • 1
  1. 1.Hokkaido National Fisheries Research InstituteFisheries Research AgencyKushiroJapan

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