Differential reproductive plasticity under thermal variability in a freshwater fish (Danio rerio).

ABSTRACT: Human-driven increases in global mean temperatures are associated with concomitant increases in thermal variability. Yet, few studies have explored the impacts of thermal variability on fitness-related traits, limiting our ability to predict how organisms will respond to dynamic thermal changes. Among the myriad organismal responses to thermal variability, one of the most proximate to fitness-and, thus, a population's ability to persist-is reproduction. Here, we examine how a model freshwater fish (Danio rerio) responds to diel thermal fluctuations that span the species's viable developmental range of temperatures. We specifically investigate reproductive performance metrics including spawning success, fecundity, egg provisioning and sperm concentration. Notably, we apply thermal va

SUBMITTER: Massey MD 

PROVIDER: S-EPMC9449469 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature