Seasonality only Works in Certain Parts of the Year: the Reconstruction of Fishing Seasons through Otolith Analysis

W. van Neer, A. Ervynck, L.J. Bolle, R.S. Millner

    Research output: Contribution to journalArticleAcademicpeer-review

    27 Citations (Scopus)

    Abstract

    Seasonality estimations using incremental data usually suffer from small sample sizes and from the lack of comparison with sufficiently large modern samples. The present contribution reports on incremental studies carried out on large assemblages of plaice (Pleuronectes platessa) and haddock (Melanogrammus aeglefinus) from a late medieval fishing village (Raversijde, Belgium) on the North Sea coast. In an attempt to refine previous seasonality estimates made for this site, and to expand conclusions concerning general methodology, extensive monthly samples of modern otoliths of these species, caught within the North Sea, have also been investigated. The modern material shows that the timing of the seasonal changes in the edge type (hyaline or opaque) of the otoliths is extremely variable and that it is dependent on the fishing ground, the year considered, and the age of the fish. It also appears that the increase of the marginal increment thickness is highly variable, to such an extent that the thickness of the last increment of a single otolith is mostly useless for seasonality estimation. Where large archaeological otolith assemblages can be studied, preferably from single depositional events, seasonality determination becomes possible on the condition, however, that the archaeological assemblage corresponds to fish that were captured during their period Of fast growth. The growth ring study on the otoliths from Raversijde shows that plaice fishing took place in spring and that it was preceded by a haddock fishing season, probably in late winter/early spring. Copyright (C) 2004 John Wiley Sons, Ltd.
    Original languageEnglish
    Pages (from-to)457-474
    JournalInternational Journal of Osteoarchaeology
    Volume14
    Issue number6
    DOIs
    Publication statusPublished - 2004

    Keywords

    • pleuronectes-platessa l
    • growth
    • cementum
    • death
    • age
    • increments
    • eruption
    • plaice
    • sites
    • teeth

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