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Annulus formation on the scales of weakfish,Cynoscion regalis, of Chesapeake Bay

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Chesapeake Science

Abstract

Annulus formation and scale growth were studied on scale samples from 3624 weakfish from Chesapeake Bay during the period from April to October. Annuli formed on the scales of yearling weakfish from April to August. In older weakfish most annuli were formed in June and July. Scale growth after annulus formation appeared to be rapid for a short period after which its rate declined. The combination of annulus formation during the peak of the fishing season followed by accelerated scale growth complicates age determination based on scale samples alone.

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Authors and Affiliations

  1. Sport Fishing Institute, Washington, D.C.

    William H. Massmann

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  1. William H. Massmann
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Contribution No. 129 from the Virginia Institute of Marine Science, Gluocester Point, Virginia

Formerly, Virginia Institute of Marine Science, Gloucester Point, Virginia.

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Massmann, W.H. Annulus formation on the scales of weakfish,Cynoscion regalis, of Chesapeake Bay. Chesapeake Science 4, 54–56 (1963). https://doi.org/10.2307/1351297

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  • DOI: https://doi.org/10.2307/1351297

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