Multiple-batch spawning: a risk-spreading strategy disarmed by highly intensive size-selective fishing rate.

ABSTRACT: Can the advantage of risk-managing life-history strategies become a disadvantage under human-induced evolution? Organisms have adapted to the variability and uncertainty of environmental conditions with a vast diversity of life-history strategies. One such evolved strategy is multiple-batch spawning, a spawning strategy common to long-lived fishes that 'hedge their bets' by distributing the risk to their offspring on a temporal and spatial scale. The fitness benefits of this spawning strategy increase with female body size, the very trait that size-selective fishing targets. By applying an empirically and theoretically motivated eco-evolutionary mechanistic model that was parameterized for Atlantic cod (Gadus morhua), we explored how fishing intensity may alter the life-history trai

SUBMITTER: Hocevar S 

PROVIDER: S-EPMC9428534 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature