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Patterns in pelagic and benthic nanoflagellate densities in the coastal upwelling system along the Banc d'Arguin, Mauritania

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Abstract

We studied spatial variation in abundance of marine benthic and pelagic heterotrophic nanoflagellates in relation to abundances of autotrophic flagellates, bacteria and cyanobacteria in an upwelling area off the Banc d'Arguin, Mauritania.

There was enormous spatial variation in densities. In the sediments these ranged from 8–219 × 103 cm−3 for heterotrophic flagellates. Maximum values are in the range of those for temperate shallow marine bottoms. Low densities (< 20 × 103) were confined to the deep stations (> 1000 m). Over the shelf (10–100 m depth) densities were high but related to grain size rather than to concurrent upwelling phenomena or to the abundance of benthic macrofauna.

Pelagic flagellate abundance appeared to be more indicative of contemporary hydrographic conditions, most obvious by an increase in the ratio heterotrophic/autotrophic nanoflagellates away from the area of most intense upwelling.

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References

  • Alongi, D. M., 1990. Abundances of benthic microfauna in relation to outwelling of mangrove detritus in a tropical coastal region. Mar. Ecol. Prog. Ser. 63: 53–63.

    Google Scholar 

  • Alongi, D. M., 1991. Flagellates of benthic communities: Characteristics and methods of study. In D. J. Patterson & J. Larsen (eds), The biology of free-living heterotrophic flagellates, The Systematics Association, Oxford, 45: 57–76.

    Google Scholar 

  • Azam, F., T. Fenchel, J. G. Field, J. S. Gray, L. A. Meyer-Reil & F. Thingstad, 1983. The ecological role of water-column microbes in the sea. Mar. Ecol. Prog. Ser. 10: 251–263.

    Google Scholar 

  • Bak, R. P. M. & G. Nieuwland, 1989. Seasonal fluctuations in benthic protozoan populations at different depths in marine sediments. Neth. J. Sea Res. 24: 37–44.

    Article  Google Scholar 

  • Bak, R. P. M., F. C. van Duyl, G. Nieuwland & A. J. Kop, 1991. Benthic heterotrophic nanoflagellates in North Sea field/mesocosm bottoms and their response to algal sedimentation. Ophelia 33: 187–196.

    Google Scholar 

  • Barber, R. T. & R. L. Smith, 1981. Coastal upwelling ecosystems. In A. R. Longhurst (ed.), Analysis of marine ecosystems. Academic Press, London: 31–68.

    Google Scholar 

  • Berghuis, E. M., G. C. A. Duineveld & J. Hegeman, 1993. Primary production and distribution of phytopigments in the water column and sediments on the upwelling shelf off the Mauritanian coast (Northwest Africa). Hydrobiologia 258: 81–93.

    Google Scholar 

  • Bratbak, G., 1987. Carbon flow in an experimental microbial ecosystem. Mar. Ecol. Prog. Ser. 36: 267–276.

    Google Scholar 

  • Domaill, F., 1985. Carte sedimentologique de plateau continental Mauritanien. Edition de l'Orstom, Collection Notice Explicative 105.

  • Duineveld, G. C. A., P. A. W. J de Wilde, E. M. Berghuis & A. Kok, 1993. The benthic infauna and benthic respiration off the Banc d'Arguin (Mauritania, Northwest Africa). Hydrobiologia 258: 107–117.

    Google Scholar 

  • Fenchel, T., 1986. The ecology of heterotrophic flagellates. Adv. Microb. Ecol. 9: 57–97.

    Google Scholar 

  • Fenchel, T., 1987. The ecology of protozoa. Science Tech Publishers, Madison (Wisconsin), 187 pp.

    Google Scholar 

  • Hondeveld, B. J. M., R. P. M. Bak & F. C. cvan Duyl, 1992. Bacterivory by heterotrophic nanoflagellates in marine sediments measured by uptake of fluorescently labelled bacteria. Mar. Ecol. Prog. Ser. 89: 63–71.

    Google Scholar 

  • Kuipers, B. R., H. J. Witte & S. R. Gonzalez, 1993. Zooplankton distribution in the coastal upwelling system along the Banc d'Arguin, Mauritania. Hydrobiologia 258: 133–149.

    Google Scholar 

  • Larsen, J. & D. J. Patterson, 1990. Some flagellates (Protista) from tropical marine sediments. J. Nat. Hist. 24: 801–937.

    Google Scholar 

  • Loktionov, Y., 1993. Hydrographical observations west of the Banc d'Arguin, Mauritania, in May 1988. Hydrobiologia 258: 21–32.

    Google Scholar 

  • Meyer-Reil, L. A., 1984. Bacterial biomass and heterotrophic activity in sediments and overlying waters. In J. E. Hobbie & P. J. leB. Williams (eds), Heterotrophic activity in the sea. Plenum Press, New York: 523–546.

    Google Scholar 

  • Minas, H. J., L. A. Codispoti & R. C. Dugdale, 1982. Nutrients and primary production in the upwelling region off Northwest Africa. Rapp. P.-v. Réun. Cons. int. Explor. Mer 18: 148–183.

    Google Scholar 

  • Mittelstaedt, E., 1991. The ocean boundary along the northwest African coast: Circulation and oceanographic properties at the sea surface. Prog. Oceanog. 26: 307–355.

    Article  Google Scholar 

  • Nielsen, T. G. & K. Richardson, 1989. Food chain structure of the North Sea plankton communities: Seasonal variations of the role of the microbial loop. Mar. Ecol. Progr. Ser. 56: 75–87.

    Google Scholar 

  • Patterson, D. J., J. Larsen & J. O. Corliss, 1989. The ecology of heterotrophic flagellates and ciliates living in marine sediments. Progr. Protistol. 3: 185–277.

    Google Scholar 

  • Rassoulzadegan, F. & R. W. Sheldon, 1986. Predator-prey interactions of nanozooplankton and bacteria in an oligotrophic marine environment. Limnol. Oceanogr. 31: 1010–1021.

    Google Scholar 

  • Rico, G., 1977. Contribution al estudio de los protozoarios marinos de los alrededores del cabo Blanco. Res. Exp. Cient.B/O Cornide 6: 245–290.

    Google Scholar 

  • Sheldon, R. W., P. Nival & F. Rassoulzadegan, 1986. An experimental investigation of a flagellate-ciliate-copepod food chain with some observations relevant to the linear biomass hypothesis. Limnol. Oceanogr. 31: 184–188.

    Google Scholar 

  • Sherr, B. F., E. B. Sherr & S. Y. Newell, 1984. Abundance and productivity of heterotrophic nanoplankton. J. Plankton Res. 6: 195–203.

    Google Scholar 

  • Sorokin, Yu. I., 1977. The heterotrophic phase of plankton succession in the Japan Sea. Mar. Biol. 41: 107–117.

    Google Scholar 

  • Sorokin, Yu. I., 1979. Zooflagellates as a component of the community of eutrophic and oligotrophic waters in the Pacific Ocean. Oceanol. 19: 316–319.

    Google Scholar 

  • Sorokin, Yu. I., 1981. Microheterotrophic organisms in marine ecosystems. In A. R. Longhurst (ed.), Analysis of marine ecosystems. Academic Press, London: 293–342.

    Google Scholar 

  • Sorokin, Yu. I. & J. E. Kogelschatz, 1979. Analysis of heterotrophic microplankton in an upwelling area. Hydrobiol. 66: 195–209.

    Google Scholar 

  • Stockner, J. G. & N. J. Antia, 1986. Algal picoplankton from marine and freshwater ecosystems: a multidisciplinary perspective. Can. J. Fish. aquat. Sci. 43: 2472–2503.

    Google Scholar 

  • Vallespinos F. & A. Tejero, 1977. Distribution de bacterias heterotrofas en la zona de afloramento del NW Africa. Res. Exp. Cient. B/O Cornide 6: 151–164.

    Google Scholar 

  • Van Duyl, F. C. & A. J. Kop, 1990. Seasonal patterns of bacterial production and biomass in intertidal sediments of the western Dutch Wadden sea. Mar. Ecol. Prog. Ser. 59: 249–261.

    Google Scholar 

  • Van Duyl, F. C., R. P. M. Bak, A. J. Kop & G. Nieuwland, 1990. Bacteria, auto- and heterotrophic nanoflagellates, and their relations in mixed, frontal and stratified waters of the North Sea. Neth. J. Sea Res. 26: 97–109.

    Article  Google Scholar 

  • Van Duyl, F. C., R. P. M. Bak, A. J. Kop & G. Nieuwland. Mesocosm experiments: mimicking seasonal developments of microbial variables in North Sea sediments. Hydrobiologia, in press.

  • Wolff, W. J. & C. J. Smit, 1990. The Banc d'Arguin, Mauritania, as an environment for coastal birds. Ardea 78: 17–37.

    Google Scholar 

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  1. Netherlands Institute for Sea Research (NIOZ), P.O. Box 59, 1790 AB, Den Burg, Texel, The Netherlands

    R. P. M. Bak & G. Nieuwland

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  1. R. P. M. Bak
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  2. G. Nieuwland
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Bak, R.P.M., Nieuwland, G. Patterns in pelagic and benthic nanoflagellate densities in the coastal upwelling system along the Banc d'Arguin, Mauritania. Hydrobiologia 258, 119–131 (1993). https://doi.org/10.1007/BF00006191

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