A potential source of error when estimating ecological production of fishes using back-calculations |
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| Authors: | Cameron B. Portt Eugene K. Balon |
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| Affiliation: | (1) Department of Zoology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada |
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| Abstract: | Synopsis Fish production estimates determined from weights back-calculated to the time of annulus formation were found to underestimate actual production by 12 to 44%. It is suggested that production should either be estimated from weights at the time of collection or a correction factor should be employed when back-calculating weights. |
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| Keywords: | Annulus formation Spawning Weight Length Ageing Correction of production estimates |
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