Environmental Monitoring and Assessment

, Volume 36, Issue 2, pp 139–148 | Cite as

The suitability of a single intertidal fish trap for the assessment of long-term trends in fish and epibenthic invertebrate populations

  • J. van der Meer
  • J. Ij. Witte
  • H. W. van der Veer
Article

Abstract

The suitability of a single intertidal fish trap for the assessment of long-term trends in fish and epibenthic invertebrate relies upon the assumption of an on-average constant sampling fraction from the study population. This assumption was examined by comparing trends over years in five different traps within the study area. For some species, like cod, the traps showed more or less parallel fluctuations. This is in agreement with the assumption. However, for other species, like mackerel, the assumption was invalidated by distinct trends over years.

Keywords

Environmental Management Sampling Fraction Distinct Trend Constant Sampling Fish Trap 

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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • J. van der Meer
    • 1
  • J. Ij. Witte
    • 1
  • H. W. van der Veer
    • 1
  1. 1.Netherlands Institute for Sea ResearchDen BurgThe Netherlands

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