Spawning behavior of Arctic charr (Salvelinus alpinus): Spawning synchrony, vibrational communication, and mate guarding.

ABSTRACT: A mismatch in synchrony between male and female gamete release in external fertilizers can result in reduced or failed fertilization, sperm competition, and reduced paternity. In Arctic charr (Salvelinus alpinus), males can adopt either a guard or sneak tactic resulting in both pre- and postcopulatory competition between males with alternative reproduction tactics. Here, spawning behavior of free-living Arctic charr was video-recorded, and their reproductive behavior was analyzed. From evaluating 157 spawning events, we observed that females mainly spawned with a guarding male and that the female and the guarding male synchronized timing of gamete release under sperm competition. Although sneakers spawned with higher synchrony than the guarding male in single-male spawning events, t

SUBMITTER: Brattli MB 

PROVIDER: S-EPMC6145006 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature