Abstract
Abstract Understanding reproduction and recruitment is essential for the successful conservation of a species. An estimate of the fecundity of cunner Tautogolabrus adspersus is critical for assessing population dynamics and perturbation effects. In this study, we estimated length-, weight-, and actual age-specific fecundity relationships for cunner in Cape Cod Bay, Massachusetts. We used the gonadosomatic index to assist with selection of mature, prespawning-size fish for estimating fecundity. We then gravimetrically estimated fecundity for 205 fish 69–185 mm in total length that were collected in May and June 1994. Quadratic models on log10-transformed length and weight data each explained 71% of the variance in fecundity, and age data explained 57% of the variance. In a test of age-specific fecundity precision, three age-specific models (actual age, age back-calculated from the von Bertalanffy equation, and a calculated age estimate that was expanded to include additional data) produced consistent fecun...
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