Skip to main content
Log in

Experimental variation of near-bottom current speeds and its effects on depth distribution of sand-living meiofauna

  • Published:
Marine Biology Aims and scope Submit manuscript

Abstract

Meiofauna are eroded from sediments and transported in the water column. To examine how meiofauna respond to erosive currents, in situ current speeds were altered on an intertidal sandflat located in Bogue Sound, North Carolina, USA in July 1982. Replicates of two different weir designs were erected. One design increased measured current speed and the other, a control, did not. The depth distributions of meiofauna in each treatment and from undisturbed sediment were compared. There were few differences among treatments in depth distribution of the most abundant taxa: nematodes, turbellarians, and ciliates (>37-μm-long). However, a significant amount of sediment erosion (a mean of almost 0.5 cm in 2 h) occured in the increased flow treatment. Meiofauna responded to the loss of sediment with no discernable differences in depth distribution relative to the controls. There was some evidence that nematodes were less abundant and ciliates more abundant in the top 0.5 cm of the increased flow treatment. This may indicate that nematodes respond to fast surface current speeds by moving deeper into the sediments, while ciliates manage to remain near the surface even as sediment erodes. The entrainment of meiofauna may be passive but meiofauna clearly exert considerable behavioral influence over their susceptibility to entrainment.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Literature cited

  • Bell, S. S. and K. M. Sherman: A field investigation of meiofaunal dispersal: tidal resuspension and implications. Mar. Ecol. Prog. Ser. 3, 245–249 (1980)

    Google Scholar 

  • Boaden, P. J. S.: Water movement — a dominant factor in interstitial ecology. Sarsia 34, 125–136 (1968)

    Google Scholar 

  • Boaden, P. J. S.: The behavior of Monocelis lineata (Muller, Turbellaria Otoplanidae) in a false otoplanid-zone. Acta Zool. Fenn. 154, 37–46 (1977)

    Google Scholar 

  • Boaden, P. J. S. and D. G. Erwin: Turbanella hyalina versus Protodriloides symbioticus: a study in interstitial ecology. Vie Milieu suppl. 22, 479–492 (1971)

    Google Scholar 

  • Boaden, P. J. S. and H. M. Platt: Daily migration patterns in an intertidal meiobenthic community. Thalassia jugosl. 7, 1–12 (1971)

    Google Scholar 

  • Borror, A. C.: Ecology of interstitial ciliates. Trans. Am. microsc. Soc. 87, 233–243 (1968)

    Google Scholar 

  • Brett, C. E.: Relationships between marine invertebrate infauna distribution and sediment type distribution in Bogue Sound, N.C. Ph.D. dissertation, University of North Carolina, Chapel Hill 1963

    Google Scholar 

  • Cohen, J.: Statistical power analysis for the behavioral sciences, 474 pp. 2nd ed. New York: Academic Press 1977

    Google Scholar 

  • Crenshaw, D. G.: How interstitial animals deal with viscous flows. Ph.D. dissertation, Duke University 1980

  • deJonge, V. N. and L. A. Bouwman: A simple density separation technique for quantitative isolation of meiobenthos using colloidal silica LUDOX-AM. Mar. Biol. 42, 143–148 (1977)

    PubMed  Google Scholar 

  • Eckman, J. E., A. R. M. Nowell and P. A. Jumars. Sediment destabilization by animal tubes. J. mar. Res. 39, 361–374 (1981)

    Google Scholar 

  • Fegley, S. R.: Experimental studies on the erosion of meiofauna from soft-substrates by currents and waves, 164 pp. Ph.D. dissertation, University of North Carolina, Chapel Hill 1985

    Google Scholar 

  • Fleeger, J. W., G. T. Chandler, G. R. Fitzhugh and F. E. Phillips: Effects of tidal currents on meiofauna densities in vegetated salt marsh sediments. Mar. Ecol. Prog. Ser. 19, 49–53 (1984)

    Google Scholar 

  • Gray, J. S.: The behavior of Protodrilus symbioticus (Giard) in temperature gradients. J. Anim. Ecol. 34, 455–461 (1965)

    Google Scholar 

  • Gray, J. S.: An experimental approach to the ecology of the harpacticoid Leptastacus constrictus Lang. J. exp. mar Biol. Ecol. 2, 278–292 (1968)

    Article  Google Scholar 

  • Hagerman, G. H. and R. M. Rieger: Dispersal of benthic meiofauna by wave and current action in Bogue Sound, North Carolina, USA. P.S.Z.N.I.: Mar. Ecol. 2, 245–270 (1980)

    Google Scholar 

  • Jansson, B. O.: Diurnal and annual variation of temperature and salinity of interstitial water in sandy beaches. J. exp. mar. Biol. Ecol. 1, 123–143 (1967)

    Article  Google Scholar 

  • Joint, I. R., J. M. Gee and R. M. Warwick: Determination of finescale vertical distribution of microbes and meiofauna in an intertidal sediment. Mar. Biol. 72, 157–164 (1982)

    Google Scholar 

  • Jumars, P. A. and A. R. M. Nowell: Fluid and sediment dynamic effects on marine benthic community structure. Am. Zool. 24, 45–55 (1984)

    Google Scholar 

  • Kleinbaum, D. G. and L. L. Kupper: Applied regression analysis and other multivariable methods, 556 pp. North Scituate, MA: Duxbury Press (1978)

    Google Scholar 

  • McLachlan, A.: A quantitative analysis of the meiofauna and the chemistry of the redox potential discontinuity zone in a sheltered sandy beach. Estuar. cstl mar. Sci. 7, 275–290 (1978)

    Google Scholar 

  • Ott, J.: Determination of fauna boundaries of nematodes in an intertidal sand flat. Int. Revue ges. Hydrobiol. 57, 645–663 (1972)

    Google Scholar 

  • Palmer, J. P. and T. E. Round: Persistent vertical migration rhythms in benthic microflora. VI. The tidal and diurnal nature of the rhythm in the diatom Huntzschia virgata. Biol. Bull. mar. biol. Lab., Woods Hole 132, 44–55 (1967)

    Google Scholar 

  • Palmer, M. P.: Invertebrate drift: behavioral experiments with intertidal meiobenthos. Mar. behav. Physiol. 10, 235–253 (1984)

    Google Scholar 

  • Palmer, M. P. and R. R. Brandt: Tidal variation in sediment densities of marine benthic copepods. Mar. Ecol. Prog. Ser. 4, 207–212 (1981)

    Google Scholar 

  • Palmer, M. P. and G. Gust: Dispersal of meiofauna in a turbulent tidal creek. J. mar. Res. 43, 179–210 (1985)

    Google Scholar 

  • Peterson, C. H.: Clam predation by whelks (Busycon spp.): experimental tests of the importance of prey size, prey density, and seagrass cover. Mar. Biol. 66, 159–170 (1982)

    Google Scholar 

  • Platt, H. M.: Vertical and horizontal distribution of free-living marine nematodes from Strangford Lough, Northern Ireland. Cah. Biol. mar. 18, 261–273 (1977)

    Google Scholar 

  • Reise, K. and P. Ax: A meiofaunal “thiobios” limited to the anaerobic sulfide system of marine sand does not exist. Mar. Biol. 54, 225–237 (1979)

    Google Scholar 

  • Riedl, R. J. and R. Machan: Hydrodynamic patterns in lotic intertidal sands and their bioclimatological implications. Mar. Biol. 13, 179–209 (1972)

    Google Scholar 

  • Rieger, R. M. and J. Ott: Gezeitbedingte Wanderungen von Turbellarian und Nematoden eines nordadriatischen Sandstrandes. Vie Milieu suppl. 22, 425–447 (1971)

    Google Scholar 

  • Sutherland, J. P. and R. H. Karlson: Development and stability of the fouling community at Beaufort, North Carolina. Ecol. Monogr. 47, 425–446 (1977)

    Google Scholar 

  • Swedmark, B.: The interstitial fauna of marine sand. Biol. Rev. 39, 1–42 (1964)

    Article  Google Scholar 

  • Taylor, W. R.: Light and photosynthesis in interstitial benthic diatoms. Helgoländer wiss. Meeresunters. 10, 29–37 (1964)

    Google Scholar 

  • Toft, C. A. and P. J. Shea: Detecting community-wide patterns: estimating power strengthens statistical inference. Am. Nat. 122, 618–625 (1983)

    Google Scholar 

  • Vogel, S.: Life in moving fluids, 352 pp. Boston, MA: Willard Grant Press 1981

    Google Scholar 

  • Wallace, H. R.: The dynamics of nematode movement. A. Rev. Phytopathol. 6, 91–114 (1968)

    Article  Google Scholar 

  • Wieser, W.: The meiofauna as a tool in the study of habitat heterogeneity: ecophysiological aspects. A review. Cah. Biol. mar. 16, 647–670 (1975)

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Communicated by J. P. Grassle, Woods Hole

Rights and permissions

Reprints and permissions

About this article

Cite this article

Fegley, S.R. Experimental variation of near-bottom current speeds and its effects on depth distribution of sand-living meiofauna. Mar. Biol. 95, 183–191 (1987). https://doi.org/10.1007/BF00409004

Download citation

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00409004

Keywords

Navigation