Spatial scales of interannual recruitment variations of marine, anadromous, and freshwater fish

R.A. Myers, G. Mertz, J. Bridson

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    Abstract

    We examine the spatial scale of variability in recruitment for 11 marine, three anadromous, and five freshwater species. Generally the spatial scale of recruitment correlations for marine species is approximately 500 km, compared with less than 50 km for freshwater; anadromous species fall between these two scales. The scale for marine species is comparable with (but less than) that of the largest-scale environmental variables (and is compatible with the idea that large-scale environmental agents influence recruitment). Our results are consistent with the hypothesis that predation is a more important factor in determining recruitment in freshwater than it is in the marine environment.
    Original languageEnglish
    Pages (from-to)1400-1407
    Number of pages7
    JournalCanadian Journal of Fisheries and Aquatic Sciences
    Volume54
    Issue number6
    Publication statusPublished - Jun 1997

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