Hypoxia delay mating in the broad-nosed pipefish
(English)Manuscript (preprint) (Other academic)
Courtship is often an important part of the reproductive process with functions such as ensuring reproductive compatibility, reducing hostility between the potential partners, and conveying individual quality. Except for the importance of the courtship behaviours themselves, latency until courting and mating is a key factor of the mating process. One factor in aquatic environments that has the potential to influence courtship behaviours is the level of dissolved oxygen, and hypoxic areas are currently spreading due to human activities, such as eutrophication. In this study we used the well-studied broad-nosed pipefish, Syngnathus typhle, to investigate the impact of hypoxia on reproductive behaviours preceding mating, on the latency until these behaviours occurred, and on the probability to mate. We found that time spent courting as well as probability to mate was unaffected by the oxygen treatment. Interestingly, we found that latency until courting and mating was prolonged in the oxygen-deprived environment. These results suggest that levels of low oxygen due to human activities can have implications for important aspects of reproductive behaviours.
Latency, Courtship behaviours, Syngnathus, Dissolved oxygen, Sex role reversed, Climate change
Research subject Biology with specialization in Animal Ecology
IdentifiersURN: urn:nbn:se:uu:diva-194676OAI: oai:DiVA.org:uu-194676DiVA: diva2:608492