Individual variation in spawning migration timing in a salmonid fish-Exploring roles of environmental and social cues.

ABSTRACT: Describing and explaining patterns of individual animal behaviors in situ, and their repeatability over the annual cycle, is an emerging field in ecology owing largely to advances in tagging technology. We describe individual movements of adult Sakhalin taimen Parahucho perryi, an endangered salmonid fish, in the headwaters of a river in northern Japan during the spring spawning season over 2 years. Migration timing, separated into stages prior to, during, and following the spawning period, was found to be more consistent and repeatable for females than males. We hypothesized that the observed coordinated movement within seasons, and repeatability in migration timing across seasons, could result from (1) individual-specific responsiveness resulting from endogenous, biological traits

SUBMITTER: Fukushima M 

PROVIDER: S-EPMC10191801 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature