Age is not just a number-Mathematical model suggests senescence affects how fish populations respond to different fishing regimes.

ABSTRACT: Senescence is often described as an age-dependent increase in natural mortality (known as actuarial senescence) and an age-dependent decrease in fecundity (known as reproductive senescence), and its role in nature is still poorly understood. Based on empirical estimates of reproductive and actuarial senescence, we used mathematical simulations to explore how senescence affects the population dynamics of Coregonus albula, a small, schooling salmonid fish. Using an empirically based eco-evolutionary model, we investigated how the presence or absence of senescence affects the eco-evolutionary dynamics of a fish population during pristine, intensive harvest, and recovery phases. Our simulation results showed that the presence or absence of senescence affected how the population responde

SUBMITTER: Ahti PA 

PROVIDER: S-EPMC8495815 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature