Climbing up the ladder: male reproductive behaviour changes with age in a long-lived fish.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00553149" target="_blank" >RIV/60077344:_____/21:00553149 - isvavai.cz</a>
Alternative codes found
RIV/67985807:_____/21:00553149
Result on the web
<a href="https://doi.org/10.1007/s00265-020-02961-7" target="_blank" >https://doi.org/10.1007/s00265-020-02961-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00265-020-02961-7" target="_blank" >10.1007/s00265-020-02961-7</a>

Result language
angličtina
Original language name
Climbing up the ladder: male reproductive behaviour changes with age in a long-lived fish.
Original language description
High reproductive performance is the key attribute of male fitness, especially due to the high reproductive skew among the males of most animal species. Males of long-lived iteroparous species have opportunities to improve upon their previous reproductive attempts with increasing age. We collected individual-specific reproductive behaviour and age data on a cyprinid fish, the asp (Leuciscus aspius), from 2015 to 2019. We tested whether males changed their performance over time using a unique dataset where individual performance was recorded yearly with passive telemetry. Individual fish behaviour was tracked from one to five reproductive seasons at least a year after the tagging. Fish were scored by measures of quality (first arrival time, number of visits and time spent in the reproductive grounds, and encountered proportion of males to all adult fish). In general, fish improved in the first three metrics with age, suggesting a shift towards behaviours likely to enhance reproductive success as individuals aged. A larger size at tagging was predictive of earlier fish arrival on the spawning ground in subsequent years. Our study therefore demonstrates the importance of age as a factor when considering the potential reproductive success of long-lived fish species.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10619 - Biodiversity conservation

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)