A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Age is not just a number : Mathematical model suggests senescence affects how fish populations respond to different fishing regimes (2021)


Ahti, P. A., Uusi‐Heikkilä, S., Marjomäki, T. J., & Kuparinen, A. (2021). Age is not just a number : Mathematical model suggests senescence affects how fish populations respond to different fishing regimes. Ecology and Evolution, 11(19), 13363-13378. https://doi.org/10.1002/ece3.8058


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajatAhti, Pauliina A.; Uusi‐Heikkilä, Silva; Marjomäki, Timo J.; Kuparinen, Anna

Lehti tai sarjaEcology and Evolution

eISSN2045-7758

Julkaisuvuosi2021

Ilmestymispäivä07.09.2021

Volyymi11

Lehden numero19

Artikkelin sivunumerot13363-13378

KustantajaJohn Wiley & Sons

JulkaisumaaBritannia

Julkaisun kielienglanti

DOIhttps://doi.org/10.1002/ece3.8058

Julkaisun avoin saatavuusAvoimesti saatavilla

Julkaisukanavan avoin saatavuusKokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX)https://jyx.jyu.fi/handle/123456789/77768

LisätietojaThe code used for the simulations is accessible in Dryad at https://doi.org/10.5061/dryad.c866t 1g7j.


Tiivistelmä

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 responded to the selection regime. At an individual level, gillnetting caused a larger decline in asymptotic length when senescence was present, compared to the nonsenescent population, and the opposite occurred when fishing was done by trawling. This change was accompanied by evolution toward younger age at maturity. At the population level, the change in biomass and number of fish in response to different fishery size-selection patterns depended on the presence or absence of senescence. Since most life-history and fisheries models ignore senescence, they may be over-estimating reproductive capacity and under-estimating natural mortality. Our results highlight the need to understand the combined effects of life-history characters such as senescence and fisheries selection regime to ensure the successful management of our natural resources.


YSO-asiasanatkalakannatpopulaatiodynamiikkakalastuskalatalousmuikkuelinkiertomatemaattiset mallit

Vapaat asiasanateco- evolutionary dynamics; fisheries; life- history; senescence; trade- offs


Liittyvät organisaatiot

Muut organisaatiot:


Hankkeet, joissa julkaisu on tehty


OKM-raportointiKyllä

Raportointivuosi2021

JUFO-taso1


Viimeisin päivitys 2024-26-03 klo 09:20