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Automated enumeration by computer digitization of age-0 weakfish Cynoscion regalis scale circuli
Szedlmayer, Stephen T. Szedlmayer, Margaret M. Sieracki, Michael E.
Szedlmayer, Stephen T.
Szedlmayer, Margaret M.
Sieracki, Michael E.
Abstract
There has been extensive use of daily otolith growth increments in age and growth ·studies of age-O fishes (Campana and Neilson 1985). Recently, the daily ageing method has been extended to scales (Szedlmayer et al. In press). However, visually counting increments is tedious, time consuming, and subject to human error (Rice 1987). In an effort to automate the counting of increments or daily circuli in scales of age-O juvenile weakfish Cynoscion regalis, a microcomputer-based system was used to digitize the video image of a scale, store the light intensities from a radial transect, and count circuli.
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1990
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Fisheries Science Peer-Reviewed Articles
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Virginia Institute of Marine Science