Abstract
The sinking rates in two size fractions of natural phytoplankton were measured over much of the photic zone in a subtropical environment. At 24, 40 and 71 m, sinking rates (± SD) of the 3 to 20 μm fractions were 0.72±0.05, 0.83±0.05, and 0.34±0.04 m · d-1, respectively, and rates for the 20 to 102 μm fraction were 1.50±0.21, 1.65±0.14, and 0.95±0.22 m · d-1, respectively. At all depths sampled, the 20 to 102 μm size fraction was observed to sink significantly (P<0.01) faster than the 3 to 20 μm fraction. considering vertical variability, both size fractions were observed to have significantly (P<0.01) lower sinking rates at 71 m than at more shallow depths. The finding of lower sinking rates in the region which lies just above the subsurface chlorophyll maximum provides empirical support for the hypothesis that variations in phytoplankton buoyancy may be related to the maintenance of this feature which is typical in oceanic environments. Analysis of sinking rate traces describes the distributions of specific sinking velocities for each size fraction and their variation.
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Literature Cited
Bienfang, P.: A new phytoplankton sinking rate method suitable for field use. Deep-Sea Res. 26/6A, 719–729 (1979)
Bienfang, P. K. and K. Gundersen: Light effects on nutrientlimited, oceanic primary production. Mar. Biol. 43, 187–191 (1977)
Bienfang, P., E. Laws and W. Johnson: Phytoplankton sinking rate determination: Technical and theoretical aspects, an improved methodology. J. exp. mar. Biol. Ecol. 30, 283–300 (1977)
Dodson, A. N. and W. H. Thomas: Concentrating plankton in a gentle fashion. Limnol. Oceanogr. 9, 455–456 (1964)
Eppley, R. W., R. W. Holmes and J. D. H. Strickland: Sinking rates of marine phytoplankton measured with a fluorometer. J. exp. mar. Biol. Ecol. 1, 191–208 (1967)
Goering, J. J., D. D. Wallen and R. M. Nauman: Nitrogen uptake by phytoplankton in the discontinuity layer of the eastern subtropical Pacific Ocean. Limnol. Oceanogr. 15, 789–796 (1970)
Harrison, P. J. and C. O. Davis: Use of the perturbation technique to measure nutruient uptake rates of natural phytoplankton populations. Deep-Sea Res. 24, 247–255 (1977)
Hobson, L. A. and C. J. Lorenzen: Relationship of chlorophyll maximum to density structure in the Atlantic Ocean and Gulf of Mexico. Deep-Sea Res. 19, 297–306 (1972)
Holm-Hansen, O., T. T. Packard and L. R. Pomeroy: Efficiency of the reverse-flow filter technique for concentrating particulate matter. Limnol. Oceanogr. 15, 832–835 (1970)
Hutchinson, G. E.: A treatise on limnology, Vol. II. Introduction to lake biology and the limnoplankton. 1115 pp New York: J. Wiley 1967
Jamart, B. M., D. F. Winter, K. Banse, G. C. Anderson and R. K. Lam: A theroretical study of phytoplankton growth and nutrient distribution in the Pacific Ocean off the northwest U. S. coast. Deep-Sea Res. 24, 753–773 (1977)
Jeffrey, S. W.: A report of green algal pigments in the Central North Pacific Ocean. Mar. Biol. 37, 33–37 (1976)
Jeffrey, S. W. and M. Vesk: Effect of blue-green light on photosynthetic pigments and chloroplast structure in the marine diatom Stephanopyxis turris. J. Phycol. 13, 271–279 (1977)
Karl, D. M.: Occurrence and ecological significance of GTP in the ocean and in microbial cells. Appl. Environ. Microbiol. 36(2), 349–355 (1978)
Karl, D. M. and P. A. LaRock: Adenosine triphosphate measurements in solid and marine sediments. J. Fish. Res. Bd Can. 32, 599–607 (1975)
Kiefer, D. A., R. J. Olson and O. Holm-Hansen: Another look at the nitrite and chlorophyll maxima in the Central North Pacific. Deep-Sea Res. 23, 1199–1209 (1976)
Lännergren, C.: Buoyancy of natural populations of marine phytoplankton. Mar. Biol. 54, 1–10 (1979)
Lorenzen, C. J.: A note on the chlorophyll and phaeophytin content of the chlorophyll maximum. Limnol. Oceanogr. 12, 482–483 (1967)
Menzel, D. W. and J. H. Ryther: The annual cycle of primary production in the Sargasso Sea off Bermuda, pp 845–846. In: Preprints, International Oceanographic Congress, AAAS, Washington, D.C. 1959
Munk, H. W. and G. A. Riley: Absorption of nutrients by aquatic plants. J. mar. Res. 11, 215–240 (1952)
Rothwell, G. N. and P. K. Bienfang: MARS — a new instrument for measuring phytoplankton siking rate. Mar. Technol. soc. Journal 12, 13–17 (1978)
Saijo, Y., O. Iizuka and A. Asaoka: Chlorophyll maxima in Kuroshio and adjacent area. Mar. Biol. (Bull.) 4, 190–196 (1969)
Semina, G. I.: The size of phytoplankton cells along longitude 174°W in the Pacific Ocean. Am. geophys. U. Oceanology 9, 391–398 (1969)
Semina, G. I.: The size of phytoplankton cells in the Pacific Ocean. Int. Rev. ges. Hydrobiol. Hydrogr., Bd. 57, S. 177–205, (1972)
Smayda, T. J.: The suspension and sinking of phytoplankton in the sea: Oceanogr. Mar. Biol. Ann. Rev., H. Barnes (ed). 8, 353–414 (1970)
Smayda, T. J. and B. J. Boleyn: Experimental observations on the flotation of marine diatoms. I. Skeletonema costatum and Rhizosolenia setigera. Limnol. Oceanogr. 11, 18–34 (1966a)
Smayda, T. J. and B. J. Boleyn: Experimental observations on the flotation of marine diatoms. II. Bacteriastrum byalinum and Chaetoceros landeri. Limnol. Oceanogr. 11, 35–43 (1966b)
Steele, J. H.: Primary production, pp 519–538. In: Oceanography. AAAS publ. 67, Washington, D.C. 1961
Steele, J. H.: Environmental control of photosynthesis in the sea. Limnol. Oceanogr. 7, 137–150 (1962)
Steele, J. H. and C. S. Yentsch: The vertical distribution of chlorophyll. J. mar. biol. Assoc. U.K. 39, 217–226 (1960)
Strickland, J. D. H. and T. R. Parsons: A practical handbook of seawater analysis. Bulletin 167, Fish. Res. Bd Can. (1972)
Venrick, E. L., J. A. McGowan and A. W. Mantyla: Deep maxima of photosynthetic chlorophyll in the Pacific Ocean. Fish. Bull. U.S. 71, 41–51 (1973)
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Communicated by R. O. Fournier, Halifax
Oceanic Institute Contribution No. 162
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Bienfang, P.K. Phytoplankton sinking rates in oligotrophic waters off Hawaii, USA. Mar. Biol. 61, 69–77 (1980). https://doi.org/10.1007/BF00410342
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DOI: https://doi.org/10.1007/BF00410342