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Cell size of Antarctic phytoplankton as a biogeochemical condition

  • Christopher D. Hewes (a1)
Abstract
Abstract

Two contrasting high nutrient/low chlorophyll regions having different conditions that control phytoplankton production, and separated by an area of blooming, are found during summer in the vicinity of the South Shetland Islands (Antarctica). Low chlorophyll conditions occur either in Fe-rich, deeply mixed and high salinity Weddell Sea shelf waters, or the Fe-poor, shoaled and low salinity Drake Passage Antarctic Circumpolar Current waters, while phytoplankton blooms are located between in mid salinity water. Contrasting phytoplankton communities were found to populate these different biogeochemical provinces. In data from six field seasons (1999–2007), nanoplankton (2–20 μm) were found to be dominant in the phytoplankton populations from light-controlled coastal waters, including blooms, with most chlorophyll found in the 2–5 μm size class. In contrast, the adjacent and presumably Fe-controlled Drake Passage waters were dominated by the microplankton (> 20 μm) size class. The asymmetrical distribution of phytoplankton size classes across the salinity gradient, when analysed independently of total chlorophyll concentration, supports the hypothesis that the different food web grazing dynamics are dependent upon biogeochemical provinces.

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References
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Atkinson A., Siegel V., Pakhomov E.Rothery P. 2004. Long-term decline in krill stock and increase in salps within the Southern Ocean. Nature, 432, 100103.
Becquevort S. 1997. Nanoprotozooplankton in the Atlantic sector of the Southern Ocean during early spring: biomass and feeding activities. Deep-Sea Research II, 44, 355373.
Chisholm S.W. 1992. Phytoplankton size. In Falkowski, P.G.&Woodhead, D.D., eds. Primary productivity and biogeochemical cycles in the sea. New York: Plenum Press, 213237.
Cushing D.H. 1981. Temporal variability in production systems. In Longhurst, A.R., ed. Analysis of marine ecosystems. New York: Academic Press, 443472.
De Baar H.J.W., Boyd P.W., Coale K.H., Landry M.R., Tsuda A.P.A., Bakker D.C.E., Bozec Y., Barber R.T., Brzezinski M.A., Buesseler K.O., Boye M., Croot P.L., Gervais F., Gorbunov M.Y., Harrison P.J., Hiscock W.T., Laan P., Lancelot C., Law C.S., Levasseur M., Marchetti A., Millero F.J., Nishioka J., Nojiri Y., van Oijen T., Riebesell U., Rijkenberg M.J.A., Saito H., Takeda S., Timmermans K.R.Veldhuis M.J.W. 2005. Synthesis of iron fertilization experiments: from the iron age in the age of enlightenment. Journal of Geophysical Research, 110, 124.
Ehnert W.McRoy C.P. 2007. Phytoplankton biomass and size fractions in surface waters of the Australian sector of the Southern Ocean. Journal of Oceanography, 63, 179187.
Fiala M., Machado M.-C.Oriol L. 2002. Phytoplankton distribution in the Indian sector of the Southern Ocean during spring. Deep-Sea Research II, 49, 18671880.
Fiala M., Semeneh M.Oriol L. 1998. Size-fractionated phytoplankton biomass and species composition in the Indian sector of the Southern Ocean during austral summer. Journal of Marine Systems, 17, 179194.
Fahnenstiel G.L., Lohrenz S.Redalje D. 1994. Have we overestimated picoplankton production? Limnology and Oceanography, 39, 432438.
Froneman P.W., Pakhomov E.A.Balarin M.G. 2004. Size-fractionated phytoplankton biomass, production and biogenic carbon flux in the eastern Atlantic sector of the Southern Ocean in late austral summer 1997–1998. Deep-Sea Research II, 51, 27152729.
Gall M.P., Boyd P.W., Hall J., Safi K.A.Chang H. 2001. Phytoplankton processes. Part 1: Community structure during the Southern Ocean Iron RElease Experiment (SOIREE). Deep-Sea Research II, 48, 25512570.
Goldman J.C.Dennett M.R. 1985. Susceptibility of some marine phytoplankton species to cell breakage during filtration and post-filtration rinsing. Journal of Experimental Marine Biology and Ecology, 86, 4758.
Hall J.A.Safi K. 2001. The impact of in situ Fe fertilization on the microbial food web in the Southern Ocean. Deep-Sea Research II, 48, 25912613.
Hart T.J. 1942. Phytoplankton periodicity in Antarctic surface waters. Discovery Reports, 21, 261356.
Helbling E.W., Villafañe V.Holm-Hansen O. 1991. Effect of Fe on productivity and size distribution of Antarctic phytoplankton. Limnology and Oceanography, 36, 18791885.
Hewes C.D., Holm-Hansen O.Sakshaug E. 1985. Alternate carbon pathways at lower trophic levels in the Antarctic food-web. In Siegfried, W.R., Condy, P.R. & Laws, R.M., eds. Antarctic nutrient cycles and food webs. Heidelberg: Springer, 277283.
Hewes C.D., Reiss C.S.Holm-Hansen O. 2009. A quantitative analysis of sources for summertime phytoplankton variability over 18 years in the South Shetland Islands (Antarctica) region. Deep-Sea Research I, 10.1016/j.dsr.2009.01.010.
Hewes C.D., Sakshaug E., Holm-Hansen O.Reid F.M.H. 1990. Microbial autotrophic and heterotrophic eucaryotes in Antarctic waters: relationships between biomass and CHL, ATP, and POC. Marine Ecology Progress Series, 63, 2735.
Hewes C.D., Reiss C.S., Kahru M., Mitchell B.G.Holm-Hansen O. 2008. Control of phytoplankton biomass by dilution and mixing depth in the western Weddell–Scotia Confluence. Marine Ecology Progress Series, 366, 1529.
Hoffmann L.J., Peeken I.Lochte K. 2007. Co-limitation by iron, silicate, and light of three Southern Ocean diatom species. Biogeosciences Discussions, 4, 209247.
Hoffmann L.J., Peeken I., Lochte K., Assmy P.Veldhuis M. 2006. Different reactions of southern Ocean phytoplankton size classes to iron fertilization. Limnology and Oceanography, 51, 12171229.
Holm-Hansen O.Hewes C.D. 2004. Deep chlorophyll-a maxima (DCMs) in Antarctic waters: I. Relationships between DCMs and the physical, chemical, and optical conditions in the upper water column. Polar Biology, 27, 699710.
Holm-Hansen O.Riemann B. 1978. Chlorophyll a determination: improvements in methodology. Oikos, 30, 438447.
Holm-Hansen O., Mitchell B.G., Hewes C.D.Karl D.M. 1989. Phytoplankton blooms in the vicinity of Palmer Station, Antarctica. Polar Biology, 10, 4957.
Holm-Hansen O., Hewes C.D., Villafañe V.E., Helbling E.W., Silva N.Amos A. 1997. Phytoplankton biomass and distribution in relation to water masses around Elephant Island, Antarctica. Polar Biology, 18, 145153.
Hopkinson B.M., Mitchell B.G., Reynolds R.A., Wang H., Selph K.E., Measures C.I., Hewes C.D., Holm-Hansen O.Barbeau K.A. 2007. Iron limitation across chlorophyll gradients in the southern Drake Passage: Phytoplankton responses to iron addition and photosynthetic indicators of iron stress. Limnology and Oceanography, 52, 25402554.
Kang S.-H.Lee S.H. 1995. Antarctic phytoplankton assemblage in the western Bransfield Strait region, February 1993: composition, biomass and mesoscale distributions. Marine Ecology Progress Series, 129, 253267.
Kawaguchi S., Ichii T.Naganobu M. 1999. Green krill, the indicator of micro- and nano-size phytoplankton availability to krill. Polar Biology, 22, 133136.
Kawaguchi S., Shiomoto A., Imai K., Tsarina Y., Yamaguchi H., Noiri Y., Iguchi N.Kameda T. 2000. A possible explanation for the dominance of chlorophyll in pico and nano-size fractions in the waters around the South Shetland Islands. Polar Biology, 23, 379388.
Lance V.P., Hiscock M.R., Hilting A.K., Stuebe D.A., Bidigare R.R., Smith W.O. JrBarber R.T. 2007. Primary productivity, differential size fraction and pigment composition responses in two Southern Ocean in situ iron enrichments. Deep-Sea Research I, 54, 747773.
Li W.K.W. 1986. Experimental approaches to field measurements: methods and interpretation. Canadian Bulletin of Fisheries and Aquatic Sciences, 214, 251286.
Li W.K.W. 1990. Particles in “particle free” seawater: growth of ultraphytoplankton and implications for dilution experiments. Canadian Journal of Fisheries and Aquatic Sciences, 47, 12581268.
Marchant H.J., Davidson A.T.Wright S.W. 1987. The distribution and abundance of croococcoid cyanobacteria in the Southern Ocean. Proceedings of the NIPR Symposium on Polar Biology, 1, 19.
Murphy L.S.Haugen E.M. 1985. The distribution and abundance of phototrophic ultraplankton in the North Atlantic. Limnology and Oceanography, 38, 4758.
Pakhomov E.A., Froneman P.W.Perissinotto R. 2002. Salp/krill interaction in the Southern Ocean: spatial segregation and implications for the carbon flux. Deep-Sea Research II, 49, 18811907.
Selph K.E., Landry M.R., Allen C.B., Calbet A., Christensen S.Bidigare R.R. 2001. Microbial community composition and growth dynamics in the Antarctic Polar Front and seasonal ice zone during late spring 1997. Deep-Sea Research II, 48, 40594080.
Sheldon R.S. 1972. Size separation of marine seston by membrane and glass-fiber filters. Limnology and Oceanography, 17, 494498.
Shiomoto A., Kawaguchi S., Imai K.Tsuruga Y. 1998. Chl a-specific productivity of picophytoplankton not higher than that of larger phytoplankton off the South Shetland Islands in summer. Polar Biology, 19, 361364.
Smetacek V. 1999. Diatoms and the ocean carbon cycle. Protist, 150, 2532.
Smetacek V., Assmy P.Henjes J. 2004. The role of grazing in structuring Southern Ocean pelagic ecosystems and biogeochemical cycles. Antarctic Science, 16, 541558.
Smith W.O. JrLancelot C. 2004. Bottom-up versus top-down control in phytoplankton of the Southern Ocean. Antarctic Science, 16, 531539.
Stockner J.G., Klug M.E.Cochlan W.P. 1990. Leaky filters: a warning to aquatic ecologists. Canadian Journal of Fisheries and Aquatic Sciences, 47, 1643.
Ter Braak C.J.F. 1987. Unimodal models to relate species to environment. PhD thesis, Rijksinstituut voor Natuurbeheer, Agricultural Mathematics Group, The Netherlands, 151 pp. [Unpublished].
Thingstad T.F. 1998. A theoretical approach to structuring mechanisms in the pelagic food web. Hydrobiologica, 363, 5972.
Thingstad T.F.Sakshaug E. 1990. Control of phytoplankton growth in nutrient recycling ecosystems: theory and terminology. Marine Ecology Progress Series, 63, 261272.
Varela M., Fernandez E.Serret P. 2002. Size-fractionated phytoplankton biomass and primary production in the Gerlache and south Bransfield straits (Antarctic Peninsula) in austral summer 1995–1996. Deep-Sea Research II, 49, 749768.
Villafañe V.E., Helbling E.W.Holm-Hansen O. 1995. Spatial and temporal variability of phytoplankton biomass and taxonomic composition around Elephant Island, Antarctica, during the summers of 1990–1993. Marine Biology, 123, 677686.
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Antarctic Science
  • ISSN: 0954-1020
  • EISSN: 1365-2079
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