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The Distribution of Planktonic Protists Along a Latitudinal Transect in the Northeast Pacific Ocean
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  • Journal title : Ocean and Polar Research
  • Volume 26, Issue 2,  2004, pp.287-298
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2004.26.2.287
 Title & Authors
The Distribution of Planktonic Protists Along a Latitudinal Transect in the Northeast Pacific Ocean
Yang, Eun-Jin; Choi, Joong-Ki; Kim, Woong-Seo;
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As a part of Korea Deep Ocean Study program, we investigated the distribution of planktonic protists in the upper 200 m of the northeast Pacific from to , along . Area of divergence was formed at which is boundaries of the north equatorial counter current (NECC) and the north equatorial current (NEC) during this cruise. Chlorophyll-a concentration was higher in NECC than in NEC area. Pico chl-a(<) to total chl-a accounted for average 89% in the study area. The contribution of pico chl-a to total chl-a was relatively high in NEC area than in NECC area. Biomass of planktonic protists, ranging from 635.3 to (average ), was most enhanced in NECC area and showed distinct latitudinal variation. Biomass of HNF ranged from 88.7 to and comprised 15% of planktonic protists. Biomass of ciliates ranged from 123.6 to and comprised 25% of planktonic protists. Biomass of HDF ranged from 407.2 to and comprised 60% of planktonic protists. HDF was the most dominant component in both NECC and NEC areas. Nano-protist biomass accounted for more than 50% of total protists in the both areas. The contribution of nanoprotist to total protists biomass was relatively higher in NEC area than in NECC. The biomass of planktonic protists was significantly correlated with phytoplankton biomass in this study area. The size structure of phytoplankton biomass coincided with that of planktonic protists. This suggested that the structure of the planktonic protists community and the microbial food web were dependent on the size structure of the phytoplankton biomass. However, biomass and size structure of planktonic protist communities might be significantly influenced by physical characteristics of the water column and food concentration in this study area.
Northeast Pacific Ocean;planktonic protists;heterotrophic dinoflagellates;ciliates;heterotrophic nanoflagellates;
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해양수산부. 1998. '98 심해저 광물자원 탐사 보고서(1). 해양수산부 보고서, 1209p.

해양수산부. 1999. '99 심해저 광물자원 탐사 보고서(1). 해양수산부 보고서, 780p.

해양수산부. 2000. 2000 심해저 광물자원 탐사 보고서(1). 해양수산부 보고서, 594p.

해양수산부. 2003. 2003 심해저 광물자원 탐사 보고서(1). 해양수산부 보고서, 770p.

Azam, F., T. Fenchel, J.G. Field, F.S. Gray, and L.A. Meyer-Reil. 1983. The ecological role of water-column microbes in the sea. Mar. Ecol. Prog. Ser., 10, 257-263. crossref(new window)

Beers, J.R. and G.L. Stewart. 1971. Microzooplankton in the plankton community of the upper waters of the Eastern Tropical Pacific. Deep-Sea Res., 18, 861-883.

Betzer, P.R., W.J. Showers, E.A. Laws, C.D. Winn, G.R. DiTullio, and P.M. Kroopnick. 1984. Primary productivity and particle fluxes on a transect of the equator at $153^{\circ}W$ in the Pacific Ocean. Deep-Sea Res., 31, 1-11. crossref(new window)

Borsheim, K.Y. and G. Bratbak. 1987. Cell volume to cell carbon conversion factors for a bacterivorus Monas sp. enriched from sea waters. Mar. Ecol. Prog. Ser., 36, 171-175. crossref(new window)

Brown, S.L. and M.R. Landry. 2003. Microbial community abundance and biomass along a $180^{\circ}$ transect in the equatorial Pacific during an El nino-Southern oscillation cold phase. J. Geophys. Res., 108, 8139. crossref(new window)

Burkill, P.H., E.S. Edwards, and M.A. Sleigh. 1995. Microzooplankton and their role in controlling phytoplankton growth in the marginal ice zone of the Bellingshausen Sea. Deep-Sea Res. II, 42, 1277-1290. crossref(new window)

Chavez, F.P. and R.T. Barber. 1987. An estimate of new production in the Equatorial Pacific. Deep-Sea Res., 34, 1229-1243. crossref(new window)

Chavez, F.P., K.R. Buck, S.K. Service, J. Newton, and R.T. Barber. 1996. Phytoplankton variability in the central and eastern tropical Pacific. Deep-Sea Res. II, 43, 835-870. crossref(new window)

Christaki, U., A. Giannakourou, F. Wambeke, and G. Gregori. 2001. Nanoflagellates predation on auto-and heterotrophic picoplankton in the oligotrophic Mediterranean Sea. J. Plankton Res., 23, 1297-1310. crossref(new window)

Dolan, J.R. and C. Marrase. 1995. Planktonic ciliates distribution relative to a deep chlorophyll maximum: Catalan Sea, N.W. Mediterranean, June 1993. Deep-Sea Res., 42, 1965-1987. crossref(new window)

Edler, L. 1979. Phytoplankton and chlorophyll recommendations for biological studies in the Baltic Sea. Baltic Marine Biologists, p. 13-25.

Garrison, D.L., M.M. Gowing, and M.P. Hughes. 1998. Nano-and microplankton in the northern Arabian sea during the southwest Monsoon, August-September, 1995 A US-JGOFS study. Deep-Sea Res. II, 45, 2269-2299. crossref(new window)

Hall, J.A., M.R. James, and J.M. Bradford-Grieve. 1999. Structure and dynamics of the pelagic microbial food web of the subtropical convergence region east of New Zealand. Aqua. Microb. Ecol., 20, 95-105. crossref(new window)

Hyun, J.H., J.K. Choi, E.J. Yang, and K.H. Kim. 1998. Biomasss and productivity of bacterioplankton related to surface water divergence in the Northeast Equatorial Pacific Ocean. J. Microbiol., 36, 151-158.

Landry, M.R., J. Constantinou, and J. Kirshtein. 1995. Microzooplankton grazing in the central equatorial Pacific during February and August, 1992. Deep-Sea Res. II, 42, 657-671. crossref(new window)

Landry, M.R., J. Kirshtein, and J. Constantinou. 1996. Abundance and distribution of picoplankton populations in the central equatorial Pacific from $12^{\circ}N$ to $12^{\circ}S$, $140^{\circ}WN$. Deep-Sea Res. II, 43, 871-890. crossref(new window)

Landry, M.R., S.L. Brown, J. Neveux, D. Dupouy, J. Blanchot, S. Christensen, and R.R. Bidigare. 2003. Phytoplankton growth and microzooplankton grazing in high-nutrient, low-chlorophyll waters of the equatorial Pacific: Community and taxon-specific rate assessment from pigment and flow cytometric analysis. J. Geophys. Res., 108, 8142. crossref(new window)

Levinsen, H., T.G. Nielsen, and B.W. Hansen. 1999. Plankton community structure and carbon cycling on the western coast of Greenland during the stratified summer situation. II. Heterotrophic dinoflagellates and ciliates. Aquat. Microb. Ecol., 16, 217-232. crossref(new window)

Liu, D., G.A. Fryxell, and I. Kaczmarska. 1996. El Nino (1992) in the equatorial Pacific: low biomass with a few dominating in the microphytoplankton. J. Plankton Res., 18, 1167-1184. crossref(new window)

Menden-Deuer, S. and E.J. Lessard. 2000. Carbon to volume relationships for dinoflagellates, diatoms and other protist plankton. Limnol. Oceanogr., 45, 569-579. crossref(new window)

Michaels, A.F., D.A. Caron, N.R. Swanberg, F.A. Howse, and C.M. Michaels. 1995. Planktonic sarcodines(Acantharia, Radiolaria, Foraminifera) in surface waters near Bermuda: abundance, biomass and vertical flux. J. Plankton Res., 17, 131-163. crossref(new window)

Moum, J.N., D.R. Caldwell, and C.A. Paulson. 1989. Mixing in the Equatorial surface layer and thermocline. J. Geophys. Res., 94, 2005-2021. crossref(new window)

Pena, M.A., M.R. Lewis, and W.G. Harrison. 1990. Primary productivity and size structure of phytoplankton biomass on a transect of the equator at $135^{\circ}W$ in the Pacific Ocean. Deep-Sea Res., 37, 295-315. crossref(new window)

Pickard, G.L. and W.J. Emery. 1982. Descriptive physical oceanography, 4th ed. Pergamon Press. 249 p.

Pierce, R.W. and J.F. Turner. 1992. Ecology of planktonic ciliates in marine food webs. Rev. Auat. Sci., 6, 139-181.

Porter, K.G. and Y.S. Feig. 1980. The use of DAPI for identifying and counting aquatic microflora. Limnol. Oceanogr., 25, 943-948. crossref(new window)

Putt, M. and D.K. Stoecker. 1989. An experimentally determined carbon: Volume ratio for marine “oligotrichous” ciliates from estuarine and coastal waters. Limnol. Oceanogr., 34, 1097-1103. crossref(new window)

Rassoulzadegan, F., M. Laval-Peuto, and R.W. Sheldon. 1988. Partitioning of the food ration of marine ciliates between pico-and nanoplankton. Hydrobiologia, 159, 75-88. crossref(new window)

Sheldon, R.W., P. Nival, and F. Rassoulzadegan. 1986. An experimental invesigation of a flagellate-ciliate-copepod food chain with some observations relevant to the linear biomass hypothesis. Limnol. Oceanogr., 31, 184-189. crossref(new window)

Sherr, E.B., B.F. Sherr, and G.A. Paffenhofer. 1986. Phagotrophic protozoa as food for metazoans: a ‘missing’ trophic link in marine pelagic food webs? Mar. Microb. Food Webs, 1, 61-80.

Sherr, E.B. and B.F. Sherr. 1988. Role of microbes in pelagic food webs: a revised concept. Limnol. Oceanogr., 33, 1225-1227. crossref(new window)

Sherr E.B., B.F. Sherr, and L. Fessenden. 1997. Heterotrophic protists in the central Arctic ocean. Deep Sea Res. II, 44, 1665-1682. crossref(new window)

Sieburth, J.McN., V. Smetacek, and J. Lenz. 1978. Pelagic ecosystem structure: heterotrophic components of the plankton and their relationship to plankton size fractions. Limnol. Oceanogr., 23, 1256-1263. crossref(new window)

Son, S.K., J.H. Hyun, C.K. Park, S.B. Chi, and K.H. Kim. 2001. Characteristics of chemical environment by changing temperature at the surface layer in the northeast Equatorial Pacific. J. Kor. Soc. Mar. Environ. Eng., 4, 24-37.

Stoecker, D.K. and J.M. Capuzzo. 1990. Predation on protozoa: its importance to zooplankton. J. Plankton Res., 12, 892-908.

Stoecker, D.K., D.E. Gustafson, P.G. Verity, and M.E. Sieracki. 1996. Micro- and meso-protozooplankton at $140^{\circ}W$ in the equatorial Pacific: heterotrophs and mixotrophs. Aquat. Microb. Ecol., 10, 273-282. crossref(new window)

Verity, P.G. and C. Langdon. 1984. Relationships between lorica volume, carbon, nitrogen and ATP content of tintinnids in Narragansett Bay. J. Plankton Res., 6, 859-868. crossref(new window)

Verity, P.G., D.K. Stoecker, M.E. Sieracki, and J.R. Nelson. 1996. Microzooplankton grazing of primary production at $140^{\circ}W$ in the Equatorial Pacific. Deep-Sea Res. II, 43, 1227-125. crossref(new window)

Vors, N., K.R. Buck, F.P. Chavez, W. Eikrem, L.E. Hansen, J.B. Stergaard, and H.A. Thomsen. 1997. Nanoplankton of the equatorial Pacific with emphasis on the heterotrophic protists. Deep-Sea Res. II, 42, 585-602. crossref(new window)

Wyrtki, K. and B. Kilonsky. 1984. Mean water and current structure during the Hawaii-to-Tahiti shuttle experiment. J. Phys. Oceanogr., 14, 242-254. crossref(new window)

Yang, E.J., J.K. Choi, and J.H. Hyun. 2004, The distribution and structure of heterotrophic protists communities in the northeast equatorial Pacific Ocean. Mar. Biol., In press.