Validation of presumed annual marks on sectioned otoliths of spotted seatrout, Cynoscion nebulosus, in the Chesapeake Bay region
Abstract:Annual otolith incremnet deposition has not been validated for spotted seatrout populations north of Florida. To validate the marks on sectioned otoliths of Chesapeake Bay spotted seatrout, a size-stratified subsample (n = 683) was randomly selected from a total of 2763 fish collected from June 1996 to March 1999. Monthly marginal increment frequency plots and monthly frequency of 0 marginal increment plots showed that presumed annual marks —interpreted as the distal edge of the translucent margin— formed once a year, during March and April, thus validating the sectioned otolith method in spotted seatrout of ages 1–5 for the Chesapeake Bay region.
Document Type: Research Article
Publication date: January 1, 2003
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