Adult lifetime reproductive value in fish depends on size and fecundity type

Stavroula Tsoukali, Karin H. Olsson, André W. Visser, Brian R. MacKenzie

Research output: Contribution to journalJournal articleResearchpeer-review


In a stable population, the adult lifetime reproductive value must be balanced against early life survival. Although delaying maturity may increase fecundity, it also reduces survival. Larger size at maturity therefore not only allows for higher
fecundity, but requires it. Using simple arguments from life history, we derive a direct proportionality relationship between the adult lifetime reproductive value and weight at maturation and find that this relationship is consistent with empirical evidence from 28 stocks and species of bony fish from temperate–boreal environments. However, the expected proportionality falls off if
mortality increases to include fishing. Furthermore, we find that the fecundity type (determinate or indeterminate) affects the predicted adult reproductive value, which is significantly (10-fold) higher for an indeterminate spawner than for a determinate spawner of the same weight. These differences may relate to trade-offs in the adult life history traits and (or) to seasonality in the
spawning environment, with subsequent consequences for early life stage survivorship
Original languageEnglish
JournalCanadian Journal of Fisheries and Aquatic Sciences
Issue number9
Pages (from-to)1405-1412
Publication statusPublished - 2016


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