Skip to main content
  • Published:

Monitoring the fish fauna in the Wadden Sea with special reference to different fishing methods and effects of wind and light on catches

Abstract

The seasonal and local distribution of fish in the Wadden Sea depends on the various modes of life of each species. To obtain nearly all species of the fish fauna and the stages of development in different spatial regions of the Wadden Sea-shallow and deep channels, puddles and pools, sedimentation fields and tidal flats—it is essential to use different fishing methods synchronously. During a two-year monitoring project in 1986 and 1987 on fish and fisheries in a restricted area of the Wadden Sea of Schleswig-Holstein, five types of fishing gear were used synchronously: handnet, push-net, 2-m beam trawl, commercial shrimp trawl, fyke net. In 822 samples of all gear 33 species were caught. No gear obtained the maximum number of species. Day and night samples show considerably different composition. Furthermore, force and direction of wind have an important effect on the distribution of fish in the coastal area. The advantages and disadvantages of the different gear for monitoring purposes are discussed from scientific and practical viewpoints.

Literature Cited

  • Beek, F. A. van, Rijnsdorp, A. D. & Clerk, R. de, 1989. Monitoring juvenile stocks of flatfish in the Wadden Sea and the coastal areas of south eastern North Sea.—Helgoländer Meeresunters.43, 461–477.

    Google Scholar 

  • Berghahn, R., 1983. Untersuchungen an Plattfischen und Nordseegarnelen (Crangon crangon) im Eulitoral des Wattenmeeres nach dem Übergang zum Bodenleben.—Helgoländer Meeresunters.36, 163–181.

    Google Scholar 

  • Berghahn, R., 1986 Determining abundance, distribution, and mortality of 0-group plaice (Pleuronectes platessa L.) in the Wadden Sea.—J. appl. Ichth.2, 11–22.

    Google Scholar 

  • Berghahn, R., 1987. The Wadden Sea as a nursery for fish and crustacean species. In: Proceedings of the 5th International Wadden Sea Symposium. Ed. by S. Tougaard& S. Asbirk. The National Forest and Nature Agency and the Museum of Fisheries and Shipping, Esbjerg, 69–85.

    Google Scholar 

  • Fonds, M., 1979. The seasonal distribution of some fish species in the western Dutch Wadden Sea. In: Fishes and fisheries of the Wadden Sea. Ed. by N. Dankers, W. J. Wolff & J. J. Zijlstra. Balkema, Rotterdam, 42–77. (Rep. Wadden Sea Working Group. 5).

    Google Scholar 

  • Getzewitz, P., 1979. Die Bedeutung der Nordstrander Bucht als Aufwuchsgebiet für Jungfische. Dipl.-Arb. Univ. Kiel, 56 pp.

  • Groot, S. J. de, 1971. On the interrelationship between morphology of the alimentary tract, food and feeding behaviour in the flatfishes (Pisces: Pleuronectiformes).—Neth. J. Sea Res.5, 121–196.

    Google Scholar 

  • Harden Jones, F. R. & Scholes, P., 1980. Wind and the catch of a Lowestoft trawler.—J. Cons. int. Explor. Mer39, 53–69.

    Google Scholar 

  • Hinz, V., 1983. Fischereibiologische Untersuchungen in ausgesuchten Lahnungsfeldern des Nordfriesischen Wattenmeeres. Dipl.-Arb., Univ. Hamburg, 115 pp.

  • Kruuk, H., 1963. Drurnal periodicity in the activity of the Common Sole,Solea vulgaris, Quensel.—Neth. J. Sea Res.2, 1–28.

    Google Scholar 

  • Kuipers, B., 1973. On the tidal migration of young plaice (Pleuronectes platessa) in the Wadden Sea.—Neth. J. Sea Res.6, 376–388.

    Google Scholar 

  • Kuipers, B., 1975. On the efficiency of a two-meter beam trawl for juvenile plaice (Pleuronectes platessa)—Neth. J. Sea Res.9, 69–85.

    Google Scholar 

  • Kuipers, B., 1977. On the ecology of juvenile plaice on a tidal flat in the Wadden Sea.—Neth. J. Sea Res.11 56–91.

    Google Scholar 

  • Lillelund, K. & Berghahn, R, 1981. Gutachten zur Fischereibiologie der Nordstrander Bucht—Kurzfassung.—SchrReihe Landesreg. Schlesw-Holst.12, 251–312.

    Google Scholar 

  • Meyer-Waarden, P. F. & Tiews, K., 1965. Der Beifang in den Fängen der deutschen Garnelenfischerei 1954–1960.—Ber. dt. wiss. Kommn Meeresforsch.18, 13–78.

    Google Scholar 

  • Piepenburg, D., 1984. Zum Auftreten von Fischen und Fischnährtieren in ausgewählten Prielen des Nordfriesischen Wattenmeeres. Dipl-Arb., Univ. Kiel, 184 pp.

  • Riley, J. D., 1971. The Riley push-net. In: Methods for the study of marine benthos. Ed. by N. A. Holme & A. D. McIntyre, Oxford, Blackwell, 286–290.

    Google Scholar 

  • Ruth, M., 1981. Fischereibiologische Untersuchungen im oberen Eulitoral des nordfriesischen Wattenmeeres unter besonderer Berücksichtigung der MeeräscheMugil chelo Cuv. Dipl.-Arb., Univ. Kiel, 74 pp.

  • Ruth, M. & Berghahn, R., 1989. Biological monitoring of fish and crustaceans in the Wadden Sea—potential and problems.—Helgoländer Meeresunters.43, 479–487.

    Google Scholar 

  • Scholes, P., 1982. The effect of wind direction on trawl catches; an analysis of haul-by-haul data.—J. Cons. int. Explor. Mer40, 81–93.

    Google Scholar 

  • Tesch, F. W., 1973. Der Aal. Parey, Hamburg, 306 pp.

    Google Scholar 

  • Tiews, K., 1983. Über die Veränderungen im Auftreten von Fischen und Krebsen im Beifang der deutschen Garnelenfischerei während der Jahre 1954–1981.—Arch. Fisch Wiss.34, 1–156.

    Google Scholar 

  • Veen, J. F. de, 1978. On selective tidal transport in the migration of North Sea plaice (Pleuronectes platessa) and other flatfish species.—Neth. J. Sea Res.12, 115–147.

    Google Scholar 

  • Veer, H. W. van der, 1986. Immigration, settlement, and density-dependent mortality of a larval and early postlarval 0-group plaice (Pleuronectes platessa) population in the western Wadden Sea.—Mar. Ecol. Prog. Ser.29, 223–236.

    Google Scholar 

  • Witte, J. Y. & Zijlstra, J. J., 1979. The species of fish occurring in the Wadden Sea. In: Fishes and fisheries in the Wadden Sea. Ed. by N. Dankers, W. J. Wolff & J. J. Zijlstra. Balkema, Rotterdam, 10–19 (Rep. Wadden Sea Working Group. 5.)

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hinz, V. Monitoring the fish fauna in the Wadden Sea with special reference to different fishing methods and effects of wind and light on catches. Helgolander Meeresunters 43, 447–459 (1989). https://doi.org/10.1007/BF02365903

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02365903

Keywords