At the request of the Tautog Management Board, the Commission organized a hard part exchange and ageing workshop for tautog. The objectives were to assess the precision of age readings between states and come to a consensus on best ageing practices for tautog to ensure consistency in age assignment going forward.
Fisheries Science Workshops
Concise overviews and detailed accounts of discussions, decisions, and outcomes from Commission meetings, providing stakeholders with insights into the deliberations and actions taken.
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The Atlantic States Marine Fisheries Commission’s Winter Flounder Technical Committee conducted a winter flounder otolith aging comparison study in 1998, to measure interpretative consistency among four readers (Appendix I). Bias measured by this study related to systematic differences detected among comparisons between readers, but did not address accuracy relative to true age.
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At the behest of the ASMFC Bluefish Board, the Bluefish Technical Committee organized an ageing workshop to establish consistency and a common protocol of best ageing practices across state and university labs that process and read bluefish hard parts. Workshop participants also agreed to discuss the design of a coastwide sampling program intended to expand the geographical range of bluefish age samples and fill the gaps in the age-length key.
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The purpose of the workshop was to compare methods in sectioning and reading otoliths from red drum and Atlantic croaker to establish common age interpretation methods coast wide.
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Testing the validity of Cating’s (1953) method for age determination of American shad using scales. Fisheries Research 30: 10-18.McBride, R.S., Hendricks, M.L., and Olney, J.E. (2005)
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Striped Bass Ageing Workshop, MA DMF Annisquam River Laboratory Gloucester, MA, March 18-19, 2003
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Juvenile abundance indices (JAis) are frequently a critical component of interstate fisheries management programs. Such indices can provide a measure of annual recruitment success, a predictor of potential fishery yields, and a trigger for either relaxing or restricting fisheries. A workshop was convened on January 20-21, 1992 to address the development and use of JAis and to provide guidance for future work. This report provides a summary of the key findings and recommendations of the workshop participants.
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