cohort slicing

cohort slicing
a method used to assign ages to fish, given length measurements, e.g. used to convert catch-at-size data into catch-at-age data before the application of age-structured assessment models. Cohort slicing assumes that there is a one-to-one correspondence between length and age, i.e. the approach ignores individual variability in growth

Dictionary of ichthyology. 2009.

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  • catch-at-age — the estimated number of fish caught, tabulated by fish age and year of capture, and by other factors such as gear or nation. Catch at age may be estimated on the basis of catch at size, using age length keys or cohort slicing …   Dictionary of ichthyology

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