Extreme longevity in freshwater mussels revisited: sources of bias in age estimates derived from mark-recapture experiments

  • Authors: Haag, Wendell R.
  • Publication Year: 2009
  • Publication Series: Miscellaneous Publication
  • Source: Freshwater Biology, Vol. 54: 1474-1486

Abstract

There may be bias associated with mark–recapture experiments used to estimate age and growth of freshwater mussels. Using subsets of a mark–recapture dataset for Quadrula pustulosa, I examined how age and growth parameter estimates are affected by (i) the range and skew of the data and (ii) growth reduction due to handling. I compared predictions from von Bertalanffy growth models based on mark–recapture data with direct observation of mussel age and growth inferred from validated shell rings.

  • Citation: Haag, Wendell R. 2009. Extreme longevity in freshwater mussels revisited: sources of bias in age estimates derived from mark-recapture experiments. Freshwater Biology, Vol. 54: 1474-1486.
  • Posted Date: August 20, 2009
  • Modified Date: November 16, 2009
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