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The diet ofEnoplus brevis (Nematoda) in a supralittoral salt marsh of the North Sea

Abstract

The gut content of nearly 2000 specimens ofEnoplus brevis was quantitatively analysed.E. brevis is an opportunistic omnivore. Main food categories found were cyanobacteria, diatoms, oligochaetes, nematodes, and rotifers. With a few exceptions, the diet of females and males was identical. Predominantly, juveniles fed on cyanobacteria and adults on animal prey. Experiments revealed that living oligochaetes are attacked and preyed upon. The quantities of the food categories eaten byEnoplus varied according to their ambient abundance, both temporarily and spatially on a small scale. At least the nematode prey was strongly selected: some species were significantly preferred and others avoided.

Literature Cited

  • Armonies, W., 1986a. Plathelminth abundance in North Sea salt marshes: environmental instability causes high diversity. — Helgoländer Meeresunters.40, 229–240.

    Google Scholar 

  • Armonies, W., 1986b. Free-living Plathelminthes in sheep-grazed and ungrazed supralittoral salt marshes of the North Sea: abundance, biomass, and their significance in food chains. — Neth. J. Sea Res.20, 385–395.

    Google Scholar 

  • Armonies, W., 1986c. Free-living Plathelminthes in North Sea salt marshes: adaptations to environmental instability. An experimental study. — J. exp. mar. Biol. Ecol.99, 181–197.

    Article  Google Scholar 

  • Armonies, W. & Hellwig, M., 1986. Quantitative extraction of living meiofauna from marine and brackish muddy sediments. — Mar. Ecol. Prog. Ser.29, 37–43.

    Google Scholar 

  • Bilio, M., 1964. Die aquatische Bodenfauna von Salzwiesen der Nord- und Ostsee. I. Biotop und ökologische Faunenanalyse: Turbellaria. — Int. Revue ges. Hydrobiol.49, 509–562.

    Google Scholar 

  • Dijkema, K. S., 1983. Outline of landscape and vegetation types. In: Flora and vegetation of the Wadden Sea islands and coastal areas. Ed. by K. S. Dijkema & W. J. Wolff. Wadden Sea Working Group, Leiden, 116–133. (Rep. Wadden Sea Working Group 9).

    Google Scholar 

  • Ellenberg, H., 1982. Vegetation Mitteleuropas mit den Alpen in ökologischer Sicht. Ulmer, Stuttgart, 989 pp.

    Google Scholar 

  • Heip, C., Vincx, M., Smol, N. & Vranken, G., 1982. The systematics and ecology of free-living marine nematodes. — Helminthol. Abstr. (Ser. B)51, 1–31.

    Google Scholar 

  • Heip, C., Vincx, M. & Vranken, G., 1985. The ecology of marine nematodes. — Oceanogr. mar. Biol.23, 399–489.

    Google Scholar 

  • Hellwig, M., 1986. Ökologie freilebender Plathelminthen im Grenzraum Watt-Salzwiese lenitischer Gezeitenküsten. — Microfauna mar.3, 157–248.

    Google Scholar 

  • Jensen, P., 1987. Feeding ecology of free-living aquatic nematodes. — Mar. Ecol. Prog. Ser.35, 187–196.

    Google Scholar 

  • Lopez, G., Riemann, F. & Schrage, M., 1979. Feeding biology of the brackishwater oncholaimid nematodeAdoncholaimus thalassophygas. — Mar. Biol.54, 311–318.

    Article  Google Scholar 

  • Lorenzen, S., 1969. Freilebende Meeresnematoden aus dem Schlickwatt und den Salzwiesen der Nordseeküste. — Veröff. Inst. Meeresforsch. Bremerh.11, 195–238.

    Google Scholar 

  • Polderman, P. J. G., 1979. The salt marsh algae of the Wadden area. In: Flora and vegetation of the Wadden Sea. Ed. by W. J. Wolff. Stichting Veth tot Steun aan Waddenonderzoek, Leiden, 124–160.

    Google Scholar 

  • Sachs, L., 1984. Angewandte Statitik. Springer, Berlin, 552 pp.

    Google Scholar 

  • Tietjen, J. H. & Lee, J. J., 1977. Feeding behaviour of marine nematodes. In: Ecology of marine benthos. Ed. by B. C. Coull. Univ. of South Carolina Press, Columbia S. C., 21–35.

    Google Scholar 

  • Wieser, W., 1953. Die Beziehung zwischen Mundhöhlengestalt, Ernährungsweise und Vorkommen bei freilebenden marinen Nematoden. — Ark. Zool.4, 439–484.

    Google Scholar 

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Hellwig-Armonies, M., Armonies, W. & Lorenzen, S. The diet ofEnoplus brevis (Nematoda) in a supralittoral salt marsh of the North Sea. Helgolander Meeresunters 45, 357–372 (1991). https://doi.org/10.1007/BF02365525

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